merge in next_gen branch

build/Dockerfile

@@ -0,0 +1,13 @@
+FROM ubuntu:16.04
+
+RUN apt-get update && \
+apt-get install build-essential libtool autotools-dev automake checkinstall cmake check git yasm libsodium-dev libopus-dev libvpx-dev pkg-config -y && \
+git clone https://github.com/ingvar1995/toxcore.git --branch=ngc_rebase && \
+cd toxcore && mkdir _build && cd _build && \
+cmake .. && make && make install
+
+RUN apt-get install portaudio19-dev python3-pyqt5 python3-pyaudio python3-pip -y && \
+pip3 install numpy pydenticon opencv-python pyinstaller
+
+RUN useradd -ms /bin/bash toxygen
+USER toxygen

build/build.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+cd ~
+git clone https://github.com/toxygen-project/toxygen.git --branch=next_gen
+cd toxygen/toxygen
+
+pyinstaller --windowed --icon=images/icon.ico main.py
+
+cp -r styles dist/main/
+find . -type f ! -name '*.qss' -delete
+cp -r plugins dist/main/
+mkdir -p dist/main/ui/views
+cp -r ui/views dist/main/ui/
+cp -r sounds dist/main/
+cp -r smileys dist/main/
+cp -r stickers dist/main/
+cp -r bootstrap dist/main/
+find . -type f ! -name '*.json' -delete
+cp -r images dist/main/
+cp -r translations dist/main/
+find . -name "*.ts" -type f -delete
+
+cd dist
+mv main toxygen
+cd toxygen
+mv main toxygen
+wget -O updater https://github.com/toxygen-project/toxygen_updater/releases/download/v0.1/toxygen_updater_linux_64
+echo "[Paths]" >> qt.conf
+echo "Prefix = PyQt5/Qt" >> qt.conf
+cd ..
+
+tar -zcvf toxygen_linux_64.tar.gz toxygen > /dev/null
+rm -rf toxygen

toxygen/av/call.py

@@ -0,0 +1,58 @@
+
+
+class Call:
+
+    def __init__(self, out_audio, out_video, in_audio=False, in_video=False):
+        self._in_audio = in_audio
+        self._in_video = in_video
+        self._out_audio = out_audio
+        self._out_video = out_video
+        self._is_active = False
+
+    def get_is_active(self):
+        return self._is_active
+
+    def set_is_active(self, value):
+        self._is_active = value
+
+    is_active = property(get_is_active, set_is_active)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Audio
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_in_audio(self):
+        return self._in_audio
+
+    def set_in_audio(self, value):
+        self._in_audio = value
+
+    in_audio = property(get_in_audio, set_in_audio)
+
+    def get_out_audio(self):
+        return self._out_audio
+
+    def set_out_audio(self, value):
+        self._out_audio = value
+
+    out_audio = property(get_out_audio, set_out_audio)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Video
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_in_video(self):
+        return self._in_video
+
+    def set_in_video(self, value):
+        self._in_video = value
+
+    in_video = property(get_in_video, set_in_video)
+
+    def get_out_video(self):
+        return self._out_video
+
+    def set_out_video(self, value):
+        self._out_video = value
+
+    out_video = property(get_out_video, set_out_video)

toxygen/av/calls.py

@@ -0,0 +1,281 @@
+import pyaudio
+import time
+import threading
+from wrapper.toxav_enums import *
+import cv2
+import itertools
+import numpy as np
+from av import screen_sharing
+from av.call import Call
+import common.tox_save
+
+
+class AV(common.tox_save.ToxAvSave):
+
+    def __init__(self, toxav, settings):
+        super().__init__(toxav)
+        self._settings = settings
+        self._running = True
+
+        self._calls = {}  # dict: key - friend number, value - Call instance
+
+        self._audio = None
+        self._audio_stream = None
+        self._audio_thread = None
+        self._audio_running = False
+        self._out_stream = None
+
+        self._audio_rate = 8000
+        self._audio_channels = 1
+        self._audio_duration = 60
+        self._audio_sample_count = self._audio_rate * self._audio_channels * self._audio_duration // 1000
+
+        self._video = None
+        self._video_thread = None
+        self._video_running = False
+
+        self._video_width = 640
+        self._video_height = 480
+
+    def stop(self):
+        self._running = False
+        self.stop_audio_thread()
+        self.stop_video_thread()
+
+    def __contains__(self, friend_number):
+        return friend_number in self._calls
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Calls
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def __call__(self, friend_number, audio, video):
+        """Call friend with specified number"""
+        self._toxav.call(friend_number, 32 if audio else 0, 5000 if video else 0)
+        self._calls[friend_number] = Call(audio, video)
+        threading.Timer(30.0, lambda: self.finish_not_started_call(friend_number)).start()
+
+    def accept_call(self, friend_number, audio_enabled, video_enabled):
+        if self._running:
+            self._calls[friend_number] = Call(audio_enabled, video_enabled)
+            self._toxav.answer(friend_number, 32 if audio_enabled else 0, 5000 if video_enabled else 0)
+            if audio_enabled:
+                self.start_audio_thread()
+            if video_enabled:
+                self.start_video_thread()
+
+    def finish_call(self, friend_number, by_friend=False):
+        if not by_friend:
+            self._toxav.call_control(friend_number, TOXAV_CALL_CONTROL['CANCEL'])
+        if friend_number in self._calls:
+            del self._calls[friend_number]
+        if not len(list(filter(lambda c: c.out_audio, self._calls))):
+            self.stop_audio_thread()
+        if not len(list(filter(lambda c: c.out_video, self._calls))):
+            self.stop_video_thread()
+
+    def finish_not_started_call(self, friend_number):
+        if friend_number in self:
+            call = self._calls[friend_number]
+            if not call.is_active:
+                self.finish_call(friend_number)
+
+    def toxav_call_state_cb(self, friend_number, state):
+        """
+        New call state
+        """
+        call = self._calls[friend_number]
+        call.is_active = True
+
+        call.in_audio = state | TOXAV_FRIEND_CALL_STATE['SENDING_A'] > 0
+        call.in_video = state | TOXAV_FRIEND_CALL_STATE['SENDING_V'] > 0
+
+        if state | TOXAV_FRIEND_CALL_STATE['ACCEPTING_A'] and call.out_audio:
+            self.start_audio_thread()
+
+        if state | TOXAV_FRIEND_CALL_STATE['ACCEPTING_V'] and call.out_video:
+            self.start_video_thread()
+
+    def is_video_call(self, number):
+        return number in self and self._calls[number].in_video
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Threads
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def start_audio_thread(self):
+        """
+        Start audio sending
+        """
+        if self._audio_thread is not None:
+            return
+
+        self._audio_running = True
+
+        self._audio = pyaudio.PyAudio()
+        self._audio_stream = self._audio.open(format=pyaudio.paInt16,
+                                              rate=self._audio_rate,
+                                              channels=self._audio_channels,
+                                              input=True,
+                                              input_device_index=self._settings.audio['input'],
+                                              frames_per_buffer=self._audio_sample_count * 10)
+
+        self._audio_thread = threading.Thread(target=self.send_audio)
+        self._audio_thread.start()
+
+    def stop_audio_thread(self):
+
+        if self._audio_thread is None:
+            return
+
+        self._audio_running = False
+
+        self._audio_thread.join()
+
+        self._audio_thread = None
+        self._audio_stream = None
+        self._audio = None
+
+        if self._out_stream is not None:
+            self._out_stream.stop_stream()
+            self._out_stream.close()
+            self._out_stream = None
+
+    def start_video_thread(self):
+        if self._video_thread is not None:
+            return
+
+        self._video_running = True
+        self._video_width = s.video['width']
+        self._video_height = s.video['height']
+
+        if s.video['device'] == -1:
+            self._video = screen_sharing.DesktopGrabber(self._settings.video['x'], self._settings.video['y'],
+                                                        self._settings.video['width'], self._settings.video['height'])
+        else:
+            self._video = cv2.VideoCapture(self._settings.video['device'])
+            self._video.set(cv2.CAP_PROP_FPS, 25)
+            self._video.set(cv2.CAP_PROP_FRAME_WIDTH, self._video_width)
+            self._video.set(cv2.CAP_PROP_FRAME_HEIGHT, self._video_height)
+
+        self._video_thread = threading.Thread(target=self.send_video)
+        self._video_thread.start()
+
+    def stop_video_thread(self):
+        if self._video_thread is None:
+            return
+
+        self._video_running = False
+        self._video_thread.join()
+        self._video_thread = None
+        self._video = None
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Incoming chunks
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def audio_chunk(self, samples, channels_count, rate):
+        """
+        Incoming chunk
+        """
+
+        if self._out_stream is None:
+            self._out_stream = self._audio.open(format=pyaudio.paInt16,
+                                                channels=channels_count,
+                                                rate=rate,
+                                                output_device_index=self._settings.audio['output'],
+                                                output=True)
+        self._out_stream.write(samples)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # AV sending
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def send_audio(self):
+        """
+        This method sends audio to friends
+        """
+
+        while self._audio_running:
+            try:
+                pcm = self._audio_stream.read(self._audio_sample_count)
+                if pcm:
+                    for friend_num in self._calls:
+                        if self._calls[friend_num].out_audio:
+                            try:
+                                self._toxav.audio_send_frame(friend_num, pcm, self._audio_sample_count,
+                                                             self._audio_channels, self._audio_rate)
+                            except:
+                                pass
+            except:
+                pass
+
+            time.sleep(0.01)
+
+    def send_video(self):
+        """
+        This method sends video to friends
+        """
+        while self._video_running:
+            try:
+                result, frame = self._video.read()
+                if result:
+                    height, width, channels = frame.shape
+                    for friend_num in self._calls:
+                        if self._calls[friend_num].out_video:
+                            try:
+                                y, u, v = self.convert_bgr_to_yuv(frame)
+                                self._toxav.video_send_frame(friend_num, width, height, y, u, v)
+                            except:
+                                pass
+            except:
+                pass
+
+            time.sleep(0.01)
+
+    def convert_bgr_to_yuv(self, frame):
+        """
+        :param frame: input bgr frame
+        :return y, u, v: y, u, v values of frame
+
+        How this function works:
+        OpenCV creates YUV420 frame from BGR
+        This frame has following structure and size:
+        width, height - dim of input frame
+        width, height * 1.5 - dim of output frame
+
+                  width
+        -------------------------
+        |                       |
+        |          Y            |      height
+        |                       |
+        -------------------------
+        |           |           |
+        |  U even   |   U odd   |      height // 4
+        |           |           |
+        -------------------------
+        |           |           |
+        |  V even   |   V odd   |      height // 4
+        |           |           |
+        -------------------------
+
+         width // 2   width // 2
+
+        Y, U, V can be extracted using slices and joined in one list using itertools.chain.from_iterable()
+        Function returns bytes(y), bytes(u), bytes(v), because it is required for ctypes
+        """
+        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2YUV_I420)
+
+        y = frame[:self._video_height, :]
+        y = list(itertools.chain.from_iterable(y))
+
+        u = np.zeros((self._video_height // 2, self._video_width // 2), dtype=np.int)
+        u[::2, :] = frame[self._video_height:self._video_height * 5 // 4, :self._video_width // 2]
+        u[1::2, :] = frame[self._video_height:self._video_height * 5 // 4, self._video_width // 2:]
+        u = list(itertools.chain.from_iterable(u))
+        v = np.zeros((self._video_height // 2, self._video_width // 2), dtype=np.int)
+        v[::2, :] = frame[self._video_height * 5 // 4:, :self._video_width // 2]
+        v[1::2, :] = frame[self._video_height * 5 // 4:, self._video_width // 2:]
+        v = list(itertools.chain.from_iterable(v))
+
+        return bytes(y), bytes(u), bytes(v)

toxygen/av/calls_manager.py

@@ -0,0 +1,116 @@
+import threading
+import cv2
+import av.calls
+from messenger.messages import *
+from ui import av_widgets
+import common.event as event
+
+
+class CallsManager:
+
+    def __init__(self, toxav, settings, screen, contacts_manager):
+        self._call = av.calls.AV(toxav, settings)  # object with data about calls
+        self._call_widgets = {}  # dict of incoming call widgets
+        self._incoming_calls = set()
+        self._settings = settings
+        self._screen = screen
+        self._contacts_manager = contacts_manager
+        self._call_started_event = event.Event()  # friend_number, audio, video, is_outgoing
+        self._call_finished_event = event.Event()  # friend_number, is_declined
+
+    def set_toxav(self, toxav):
+        self._call.set_toxav(toxav)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Events
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_call_started_event(self):
+        return self._call_started_event
+
+    call_started_event = property(get_call_started_event)
+
+    def get_call_finished_event(self):
+        return self._call_finished_event
+
+    call_finished_event = property(get_call_finished_event)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # AV support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def call_click(self, audio=True, video=False):
+        """User clicked audio button in main window"""
+        num = self._contacts_manager.get_active_number()
+        if not self._contacts_manager.is_active_a_friend():
+            return
+        if num not in self._call and self._contacts_manager.is_active_online():  # start call
+            if not self._settings.audio['enabled']:
+                return
+            self._call(num, audio, video)
+            self._screen.active_call()
+            self._call_started_event(num, audio, video, True)
+        elif num in self._call:  # finish or cancel call if you call with active friend
+            self.stop_call(num, False)
+
+    def incoming_call(self, audio, video, friend_number):
+        """
+        Incoming call from friend.
+        """
+        if not self._settings.audio['enabled']:
+            return
+        friend = self._contacts_manager.get_friend_by_number(friend_number)
+        self._call_started_event(friend_number, audio, video, False)
+        self._incoming_calls.add(friend_number)
+        if friend_number == self._contacts_manager.get_active_number():
+            self._screen.incoming_call()
+        else:
+            friend.actions = True
+        text = util_ui.tr("Incoming video call") if video else util_ui.tr("Incoming audio call")
+        self._call_widgets[friend_number] = self._get_incoming_call_widget(friend_number, text, friend.name)
+        self._call_widgets[friend_number].set_pixmap(friend.get_pixmap())
+        self._call_widgets[friend_number].show()
+
+    def accept_call(self, friend_number, audio, video):
+        """
+        Accept incoming call with audio or video
+        """
+        self._call.accept_call(friend_number, audio, video)
+        self._screen.active_call()
+        if friend_number in self._incoming_calls:
+            self._incoming_calls.remove(friend_number)
+        del self._call_widgets[friend_number]
+
+    def stop_call(self, friend_number, by_friend):
+        """
+        Stop call with friend
+        """
+        if friend_number in self._incoming_calls:
+            self._incoming_calls.remove(friend_number)
+            is_declined = True
+        else:
+            is_declined = False
+        self._screen.call_finished()
+        is_video = self._call.is_video_call(friend_number)
+        self._call.finish_call(friend_number, by_friend)  # finish or decline call
+        if friend_number in self._call_widgets:
+            self._call_widgets[friend_number].close()
+            del self._call_widgets[friend_number]
+
+        def destroy_window():
+            if is_video:
+                cv2.destroyWindow(str(friend_number))
+
+        threading.Timer(2.0, destroy_window).start()
+        self._call_finished_event(friend_number, is_declined)
+
+    def friend_exit(self, friend_number):
+        if friend_number in self._call:
+            self._call.finish_call(friend_number, True)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _get_incoming_call_widget(self, friend_number, text, friend_name):
+        return av_widgets.IncomingCallWidget(self._settings, self, friend_number, text, friend_name)

toxygen/av/screen_sharing.py

@@ -0,0 +1,22 @@
+import numpy as np
+from PyQt5 import QtWidgets
+
+
+class DesktopGrabber:
+
+    def __init__(self, x, y, width, height):
+        self._x = x
+        self._y = y
+        self._width = width
+        self._height = height
+        self._width -= width % 4
+        self._height -= height % 4
+        self._screen = QtWidgets.QApplication.primaryScreen()
+
+    def read(self):
+        pixmap = self._screen.grabWindow(0, self._x, self._y, self._width, self._height)
+        image = pixmap.toImage()
+        s = image.bits().asstring(self._width * self._height * 4)
+        arr = np.fromstring(s, dtype=np.uint8).reshape((self._height, self._width, 4))
+
+        return True, arr

toxygen/bootstrap/bootstrap.py

@@ -0,0 +1,83 @@
+import random
+import urllib.request
+from utils.util import *
+from PyQt5 import QtNetwork, QtCore
+import json
+
+
+DEFAULT_NODES_COUNT = 4
+
+
+class Node:
+
+    def __init__(self, node):
+        self._ip, self._port, self._tox_key = node['ipv4'], node['port'], node['public_key']
+        self._priority = random.randint(1, 1000000) if node['status_tcp'] and node['status_udp'] else 0
+
+    def get_priority(self):
+        return self._priority
+
+    priority = property(get_priority)
+
+    def get_data(self):
+        return self._ip, self._port, self._tox_key
+
+
+def generate_nodes(nodes_count=DEFAULT_NODES_COUNT):
+    with open(_get_nodes_path(), 'rt') as fl:
+        json_nodes = json.loads(fl.read())['nodes']
+    nodes = map(lambda json_node: Node(json_node), json_nodes)
+    nodes = filter(lambda n: n.priority > 0, nodes)
+    sorted_nodes = sorted(nodes, key=lambda x: x.priority)
+    if nodes_count is not None:
+        sorted_nodes = sorted_nodes[-DEFAULT_NODES_COUNT:]
+    for node in sorted_nodes:
+        yield node.get_data()
+
+
+def download_nodes_list(settings):
+    url = 'https://nodes.tox.chat/json'
+    if not settings['download_nodes_list']:
+        return
+
+    if not settings['proxy_type']:  # no proxy
+        try:
+            req = urllib.request.Request(url)
+            req.add_header('Content-Type', 'application/json')
+            response = urllib.request.urlopen(req)
+            result = response.read()
+            _save_nodes(result)
+        except Exception as ex:
+            log('TOX nodes loading error: ' + str(ex))
+    else:  # proxy
+        netman = QtNetwork.QNetworkAccessManager()
+        proxy = QtNetwork.QNetworkProxy()
+        proxy.setType(
+            QtNetwork.QNetworkProxy.Socks5Proxy if settings['proxy_type'] == 2 else QtNetwork.QNetworkProxy.HttpProxy)
+        proxy.setHostName(settings['proxy_host'])
+        proxy.setPort(settings['proxy_port'])
+        netman.setProxy(proxy)
+        try:
+            request = QtNetwork.QNetworkRequest()
+            request.setUrl(QtCore.QUrl(url))
+            reply = netman.get(request)
+
+            while not reply.isFinished():
+                QtCore.QThread.msleep(1)
+                QtCore.QCoreApplication.processEvents()
+            data = bytes(reply.readAll().data())
+            _save_nodes(data)
+        except Exception as ex:
+            log('TOX nodes loading error: ' + str(ex))
+
+
+def _get_nodes_path():
+    return join_path(curr_directory(__file__), 'nodes.json')
+
+
+def _save_nodes(nodes):
+    if not nodes:
+        return
+    print('Saving nodes...')
+    with open(_get_nodes_path(), 'wb') as fl:
+        fl.write(nodes)

toxygen/bootstrap/nodes.json

@@ -0,0 +1 @@
+{"nodes":[{"ipv4":"80.211.19.83","ipv6":"-","port":33445,"public_key":"A2D7BF17C10A12C339B9F4E8DD77DEEE8457D580535A6F0D0F9AF04B8B4C4420","status_udp":true,"status_tcp":true}]}

toxygen/common/event.py

@@ -0,0 +1,26 @@
+
+
+class Event:
+
+    def __init__(self):
+        self._callbacks = set()
+
+    def __iadd__(self, callback):
+        self.add_callback(callback)
+
+        return self
+
+    def __isub__(self, callback):
+        self.remove_callback(callback)
+
+        return self
+
+    def __call__(self, *args, **kwargs):
+        for callback in self._callbacks:
+            callback(*args, **kwargs)
+
+    def add_callback(self, callback):
+        self._callbacks.add(callback)
+
+    def remove_callback(self, callback):
+        self._callbacks.discard(callback)

toxygen/common/provider.py

@@ -0,0 +1,13 @@
+
+
+class Provider:
+
+    def __init__(self, get_item_action):
+        self._get_item_action = get_item_action
+        self._item = None
+
+    def get_item(self):
+        if self._item is None:
+            self._item = self._get_item_action()
+
+        return self._item

toxygen/common/tox_save.py

@@ -0,0 +1,18 @@
+
+
+class ToxSave:
+
+    def __init__(self, tox):
+        self._tox = tox
+
+    def set_tox(self, tox):
+        self._tox = tox
+
+
+class ToxAvSave:
+
+    def __init__(self, toxav):
+        self._toxav = toxav
+
+    def set_toxav(self, toxav):
+        self._toxav = toxav

toxygen/contacts/basecontact.py

@@ -0,0 +1,180 @@
+from user_data.settings import *
+from PyQt5 import QtCore, QtGui
+from wrapper.toxcore_enums_and_consts import TOX_PUBLIC_KEY_SIZE
+import utils.util as util
+import common.event as event
+import contacts.common as common
+
+
+class BaseContact:
+    """
+    Class encapsulating TOX contact
+    Properties: name (alias of contact or name), status_message, status (connection status)
+    widget - widget for update, tox id (or public key)
+    Base class for all contacts.
+    """
+
+    def __init__(self, profile_manager, name, status_message, widget, tox_id):
+        """
+        :param name: name, example: 'Toxygen user'
+        :param status_message: status message, example: 'Toxing on Toxygen'
+        :param widget: ContactItem instance
+        :param tox_id: tox id of contact
+        """
+        self._profile_manager = profile_manager
+        self._name, self._status_message = name, status_message
+        self._status, self._widget = None, widget
+        self._tox_id = tox_id
+        self._name_changed_event = event.Event()
+        self._status_message_changed_event = event.Event()
+        self._status_changed_event = event.Event()
+        self._avatar_changed_event = event.Event()
+        self.init_widget()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Name - current name or alias of user
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_name(self):
+        return self._name
+
+    def set_name(self, value):
+        if self._name == value:
+            return
+        self._name = value
+        self._widget.name.setText(self._name)
+        self._widget.name.repaint()
+        self._name_changed_event(self._name)
+
+    name = property(get_name, set_name)
+
+    def get_name_changed_event(self):
+        return self._name_changed_event
+
+    name_changed_event = property(get_name_changed_event)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Status message
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_status_message(self):
+        return self._status_message
+
+    def set_status_message(self, value):
+        if self._status_message == value:
+            return
+        self._status_message = value
+        self._widget.status_message.setText(self._status_message)
+        self._widget.status_message.repaint()
+        self._status_message_changed_event(self._status_message)
+
+    status_message = property(get_status_message, set_status_message)
+
+    def get_status_message_changed_event(self):
+        return self._status_message_changed_event
+
+    status_message_changed_event = property(get_status_message_changed_event)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Status
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_status(self):
+        return self._status
+
+    def set_status(self, value):
+        if self._status == value:
+            return
+        self._status = value
+        self._widget.connection_status.update(value)
+        self._status_changed_event(self._status)
+
+    status = property(get_status, set_status)
+
+    def get_status_changed_event(self):
+        return self._status_changed_event
+
+    status_changed_event = property(get_status_changed_event)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # TOX ID. WARNING: for friend it will return public key, for profile - full address
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_tox_id(self):
+        return self._tox_id
+
+    tox_id = property(get_tox_id)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Avatars
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def load_avatar(self):
+        """
+        Tries to load avatar of contact or uses default avatar
+        """
+        avatar_path = self.get_avatar_path()
+        width = self._widget.avatar_label.width()
+        pixmap = QtGui.QPixmap(avatar_path)
+        self._widget.avatar_label.setPixmap(pixmap.scaled(width, width, QtCore.Qt.KeepAspectRatio,
+                                                          QtCore.Qt.SmoothTransformation))
+        self._widget.avatar_label.repaint()
+        self._avatar_changed_event(avatar_path)
+
+    def reset_avatar(self, generate_new):
+        avatar_path = self.get_avatar_path()
+        if os.path.isfile(avatar_path) and not avatar_path == self._get_default_avatar_path():
+            os.remove(avatar_path)
+        if generate_new:
+            self.set_avatar(common.generate_avatar(self._tox_id[:TOX_PUBLIC_KEY_SIZE * 2]))
+        else:
+            self.load_avatar()
+
+    def set_avatar(self, avatar):
+        avatar_path = self.get_contact_avatar_path()
+        with open(avatar_path, 'wb') as f:
+            f.write(avatar)
+        self.load_avatar()
+
+    def get_pixmap(self):
+        return self._widget.avatar_label.pixmap()
+
+    def get_avatar_path(self):
+        avatar_path = self.get_contact_avatar_path()
+        if not os.path.isfile(avatar_path) or not os.path.getsize(avatar_path):  # load default image
+            avatar_path = self._get_default_avatar_path()
+
+        return avatar_path
+
+    def get_contact_avatar_path(self):
+        directory = util.join_path(self._profile_manager.get_dir(), 'avatars')
+
+        return util.join_path(directory, '{}.png'.format(self._tox_id[:TOX_PUBLIC_KEY_SIZE * 2]))
+
+    def has_avatar(self):
+        path = self.get_contact_avatar_path()
+
+        return util.file_exists(path)
+
+    def get_avatar_changed_event(self):
+        return self._avatar_changed_event
+
+    avatar_changed_event = property(get_avatar_changed_event)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Widgets
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def init_widget(self):
+        self._widget.name.setText(self._name)
+        self._widget.status_message.setText(self._status_message)
+        self._widget.connection_status.update(self._status)
+        self.load_avatar()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    @staticmethod
+    def _get_default_avatar_path():
+        return util.join_path(util.get_images_directory(), 'avatar.png')

toxygen/contacts/common.py

@@ -0,0 +1,50 @@
+from pydenticon import Generator
+import hashlib
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Typing notifications
+# -----------------------------------------------------------------------------------------------------------------
+
+class BaseTypingNotificationHandler:
+
+    DEFAULT_HANDLER = None
+
+    def __init__(self):
+        pass
+
+    def send(self, tox, is_typing):
+        pass
+
+
+class FriendTypingNotificationHandler(BaseTypingNotificationHandler):
+
+    def __init__(self, friend_number):
+        super().__init__()
+        self._friend_number = friend_number
+
+    def send(self, tox, is_typing):
+        tox.self_set_typing(self._friend_number, is_typing)
+
+
+BaseTypingNotificationHandler.DEFAULT_HANDLER = BaseTypingNotificationHandler()
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Identicons support
+# -----------------------------------------------------------------------------------------------------------------
+
+
+def generate_avatar(public_key):
+    foreground = ['rgb(45,79,255)', 'rgb(185, 66, 244)', 'rgb(185, 66, 244)',
+                  'rgb(254,180,44)', 'rgb(252, 2, 2)', 'rgb(109, 198, 0)',
+                  'rgb(226,121,234)', 'rgb(130, 135, 124)',
+                  'rgb(30,179,253)', 'rgb(160, 157, 0)',
+                  'rgb(232,77,65)', 'rgb(102, 4, 4)',
+                  'rgb(49,203,115)',
+                  'rgb(141,69,170)']
+    generator = Generator(5, 5, foreground=foreground, background='rgba(42,42,42,0)')
+    digest = hashlib.sha256(public_key.encode('utf-8')).hexdigest()
+    identicon = generator.generate(digest, 220, 220, padding=(10, 10, 10, 10))
+
+    return identicon

toxygen/contacts/contact.py

@@ -0,0 +1,333 @@
+from history.database import *
+from contacts import basecontact, common
+from messenger.messages import *
+from contacts.contact_menu import *
+from file_transfers import file_transfers as ft
+import re
+
+
+class Contact(basecontact.BaseContact):
+    """
+    Class encapsulating TOX contact
+    Properties: number, message getter, history etc. Base class for friend and gc classes
+    """
+
+    def __init__(self, profile_manager, message_getter, number, name, status_message, widget, tox_id):
+        """
+        :param message_getter: gets messages from db
+        :param number: number of friend.
+        """
+        super().__init__(profile_manager, name, status_message, widget, tox_id)
+        self._number = number
+        self._new_messages = False
+        self._visible = True
+        self._alias = False
+        self._message_getter = message_getter
+        self._corr = []
+        self._unsaved_messages = 0
+        self._history_loaded = self._new_actions = False
+        self._curr_text = self._search_string = ''
+        self._search_index = 0
+
+    def __del__(self):
+        self.set_visibility(False)
+        del self._widget
+        if hasattr(self, '_message_getter'):
+            del self._message_getter
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # History support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def load_corr(self, first_time=True):
+        """
+        :param first_time: friend became active, load first part of messages
+        """
+        try:
+            if (first_time and self._history_loaded) or (not hasattr(self, '_message_getter')):
+                return
+            if self._message_getter is None:
+                return
+            data = list(self._message_getter.get(PAGE_SIZE))
+            if data is not None and len(data):
+                data.reverse()
+            else:
+                return
+            data = list(map(lambda p: self._get_text_message(p), data))
+            self._corr = data + self._corr
+        except:
+            pass
+        finally:
+            self._history_loaded = True
+
+    def load_all_corr(self):
+        """
+        Get all chat history from db for current friend
+        """
+        if self._message_getter is None:
+            return
+        data = list(self._message_getter.get_all())
+        if data is not None and len(data):
+            data.reverse()
+            data = list(map(lambda p: self._get_text_message(p), data))
+            self._corr = data + self._corr
+            self._history_loaded = True
+
+    def get_corr_for_saving(self):
+        """
+        Get data to save in db
+        :return: list of unsaved messages or []
+        """
+        messages = list(filter(lambda m: m.type in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION']), self._corr))
+        return messages[-self._unsaved_messages:] if self._unsaved_messages else []
+
+    def get_corr(self):
+        return self._corr[:]
+
+    def append_message(self, message):
+        """
+        :param message: text or file transfer message
+        """
+        self._corr.append(message)
+        if message.type in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION']):
+            self._unsaved_messages += 1
+
+    def get_last_message_text(self):
+        messages = list(filter(lambda m: m.type in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION'])
+                                         and m.author.type != MESSAGE_AUTHOR['FRIEND'], self._corr))
+        if messages:
+            return messages[-1].text
+        else:
+            return ''
+
+    def remove_messages_widgets(self):
+        for message in self._corr:
+            message.remove_widget()
+
+    def get_message(self, _filter):
+        return list(filter(lambda m: _filter(m), self._corr))[0]
+
+    @staticmethod
+    def _get_text_message(params):
+        (message, author_type, author_name, unix_time, message_type, unique_id) = params
+        author = MessageAuthor(author_name, author_type)
+
+        return TextMessage(message, author, unix_time, message_type, unique_id)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Unsent messages
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_unsent_messages(self):
+        """
+        :return list of unsent messages
+        """
+        messages = filter(lambda m: m.author is not None and m.author.type == MESSAGE_AUTHOR['NOT_SENT'], self._corr)
+        return list(messages)
+
+    def get_unsent_messages_for_saving(self):
+        """
+        :return list of unsent messages for saving
+        """
+        messages = filter(lambda m: m.type in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION'])
+                                    and m.author.type == MESSAGE_AUTHOR['NOT_SENT'], self._corr)
+        return list(messages)
+
+    def mark_as_sent(self, tox_message_id):
+        try:
+            message = list(filter(lambda m: m.author is not None and m.author.type == MESSAGE_AUTHOR['NOT_SENT']
+                                            and m.tox_message_id == tox_message_id, self._corr))[0]
+            message.mark_as_sent()
+        except Exception as ex:
+            util.log('Mark as sent ex: ' + str(ex))
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Message deletion
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def delete_message(self, message_id):
+        elem = list(filter(lambda m: m.message_id == message_id, self._corr))[0]
+        tmp = list(filter(lambda m: m.type in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION']), self._corr))
+        if elem in tmp[-self._unsaved_messages:] and self._unsaved_messages:
+            self._unsaved_messages -= 1
+        self._corr.remove(elem)
+        self._message_getter.delete_one()
+        self._search_index = 0
+
+    def delete_old_messages(self):
+        """
+        Delete old messages (reduces RAM usage if messages saving is not enabled)
+        """
+        def save_message(m):
+            if m.type == MESSAGE_TYPE['FILE_TRANSFER'] and (m.state not in ACTIVE_FILE_TRANSFERS):
+                return True
+            return m.author is not None and m.author.type == MESSAGE_AUTHOR['NOT_SENT']
+
+        old = filter(save_message, self._corr[:-SAVE_MESSAGES])
+        self._corr = list(old) + self._corr[-SAVE_MESSAGES:]
+        text_messages = filter(lambda m: m.type in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION']), self._corr)
+        self._unsaved_messages = min(self._unsaved_messages, len(list(text_messages)))
+        self._search_index = 0
+
+    def clear_corr(self, save_unsent=False):
+        """
+        Clear messages list
+        """
+        if hasattr(self, '_message_getter'):
+            del self._message_getter
+        self._search_index = 0
+        # don't delete data about active file transfer
+        if not save_unsent:
+            self._corr = list(filter(lambda m: m.type == MESSAGE_TYPE['FILE_TRANSFER'] and
+                                               m.state in ft.ACTIVE_FILE_TRANSFERS, self._corr))
+            self._unsaved_messages = 0
+        else:
+            self._corr = list(filter(lambda m: (m.type == MESSAGE_TYPE['FILE_TRANSFER']
+                                                and m.state in ft.ACTIVE_FILE_TRANSFERS)
+                                               or (m.type in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION'])
+                                                   and m.author.type == MESSAGE_AUTHOR['NOT_SENT']),
+                                     self._corr))
+            self._unsaved_messages = len(self.get_unsent_messages())
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Chat history search
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def search_string(self, search_string):
+        self._search_string, self._search_index = search_string, 0
+        return self.search_prev()
+
+    def search_prev(self):
+        while True:
+            l = len(self._corr)
+            for i in range(self._search_index - 1, -l - 1, -1):
+                if self._corr[i].type not in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION']):
+                    continue
+                message = self._corr[i].text
+                if re.search(self._search_string, message, re.IGNORECASE) is not None:
+                    self._search_index = i
+                    return i
+            self._search_index = -l
+            self.load_corr(False)
+            if len(self._corr) == l:
+                return None  # not found
+
+    def search_next(self):
+        if not self._search_index:
+            return None
+        for i in range(self._search_index + 1, 0):
+            if self._corr[i].type not in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION']):
+                continue
+            message = self._corr[i].text
+            if re.search(self._search_string, message, re.IGNORECASE) is not None:
+                self._search_index = i
+                return i
+        return None  # not found
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Current text - text from message area
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_curr_text(self):
+        return self._curr_text
+
+    def set_curr_text(self, value):
+        self._curr_text = value
+
+    curr_text = property(get_curr_text, set_curr_text)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Alias support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def set_name(self, value):
+        """
+        Set new name or ignore if alias exists
+        :param value: new name
+        """
+        if not self._alias:
+            super().set_name(value)
+
+    def set_alias(self, alias):
+        self._alias = bool(alias)
+
+    def has_alias(self):
+        return self._alias
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Visibility in friends' list
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_visibility(self):
+        return self._visible
+
+    def set_visibility(self, value):
+        self._visible = value
+
+    visibility = property(get_visibility, set_visibility)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Unread messages and other actions from friend
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_actions(self):
+        return self._new_actions
+
+    def set_actions(self, value):
+        self._new_actions = value
+        self._widget.connection_status.update(self.status, value)
+
+    actions = property(get_actions, set_actions)  # unread messages, incoming files, av calls
+
+    def get_messages(self):
+        return self._new_messages
+
+    def inc_messages(self):
+        self._new_messages += 1
+        self._new_actions = True
+        self._widget.connection_status.update(self.status, True)
+        self._widget.messages.update(self._new_messages)
+
+    def reset_messages(self):
+        self._new_actions = False
+        self._new_messages = 0
+        self._widget.messages.update(self._new_messages)
+        self._widget.connection_status.update(self.status, False)
+
+    messages = property(get_messages)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Friend's or group's number (can be used in toxcore)
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_number(self):
+        return self._number
+
+    def set_number(self, value):
+        self._number = value
+
+    number = property(get_number, set_number)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Typing notifications
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_typing_notification_handler(self):
+        return common.BaseTypingNotificationHandler.DEFAULT_HANDLER
+
+    typing_notification_handler = property(get_typing_notification_handler)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Context menu support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_context_menu_generator(self):
+        return BaseContactMenuGenerator(self)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Filtration support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def set_widget(self, widget):
+        self._widget = widget
+        self.init_widget()

toxygen/contacts/contact_menu.py

@@ -0,0 +1,229 @@
+from PyQt5 import QtWidgets
+import utils.ui as util_ui
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Builder
+# -----------------------------------------------------------------------------------------------------------------
+
+def _create_menu(menu_name, parent):
+    menu_name = menu_name or ''
+
+    return QtWidgets.QMenu(menu_name) if parent is None else parent.addMenu(menu_name)
+
+
+class ContactMenuBuilder:
+
+    def __init__(self):
+        self._actions = {}
+        self._submenus = {}
+        self._name = None
+        self._index = 0
+
+    def with_name(self, name):
+        self._name = name
+
+        return self
+
+    def with_action(self, text, handler):
+        self._add_action(text, handler)
+
+        return self
+
+    def with_optional_action(self, text, handler, show_action):
+        if show_action:
+            self._add_action(text, handler)
+
+        return self
+
+    def with_actions(self, actions):
+        for action in actions:
+            (text, handler) = action
+            self._add_action(text, handler)
+
+        return self
+
+    def with_submenu(self, submenu_builder):
+        self._add_submenu(submenu_builder)
+
+        return self
+
+    def with_optional_submenu(self, submenu_builder):
+        if submenu_builder is not None:
+            self._add_submenu(submenu_builder)
+
+        return self
+
+    def build(self, parent=None):
+        menu = _create_menu(self._name, parent)
+
+        for i in range(self._index):
+            if i in self._actions:
+                text, handler = self._actions[i]
+                action = menu.addAction(text)
+                action.triggered.connect(handler)
+            else:
+                submenu_builder = self._submenus[i]
+                submenu = submenu_builder.build(menu)
+                menu.addMenu(submenu)
+
+        return menu
+
+    def _add_submenu(self, submenu):
+        self._submenus[self._index] = submenu
+        self._index += 1
+
+    def _add_action(self, text, handler):
+        self._actions[self._index] = (text, handler)
+        self._index += 1
+
+# -----------------------------------------------------------------------------------------------------------------
+# Generators
+# -----------------------------------------------------------------------------------------------------------------
+
+
+class BaseContactMenuGenerator:
+
+    def __init__(self, contact):
+        self._contact = contact
+
+    def generate(self, plugin_loader, contacts_manager, main_screen, settings, number, groups_service, history_loader):
+        return ContactMenuBuilder().build()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _generate_copy_menu_builder(self, main_screen):
+        copy_menu_builder = ContactMenuBuilder()
+        (copy_menu_builder
+         .with_name(util_ui.tr('Copy'))
+         .with_action(util_ui.tr('Name'), lambda: main_screen.copy_text(self._contact.name))
+         .with_action(util_ui.tr('Status message'), lambda: main_screen.copy_text(self._contact.status_message))
+         .with_action(util_ui.tr('Public key'), lambda: main_screen.copy_text(self._contact.tox_id))
+         )
+
+        return copy_menu_builder
+
+    def _generate_history_menu_builder(self, history_loader, main_screen):
+        history_menu_builder = ContactMenuBuilder()
+        (history_menu_builder
+         .with_name(util_ui.tr('Chat history'))
+         .with_action(util_ui.tr('Clear history'), lambda: history_loader.clear_history(self._contact)
+                                                           or main_screen.messages.clear())
+         .with_action(util_ui.tr('Export as text'), lambda: history_loader.export_history(self._contact))
+         .with_action(util_ui.tr('Export as HTML'), lambda: history_loader.export_history(self._contact, False))
+         )
+
+        return history_menu_builder
+
+
+class FriendMenuGenerator(BaseContactMenuGenerator):
+
+    def generate(self, plugin_loader, contacts_manager, main_screen, settings, number, groups_service, history_loader):
+        history_menu_builder = self._generate_history_menu_builder(history_loader, main_screen)
+        copy_menu_builder = self._generate_copy_menu_builder(main_screen)
+        plugins_menu_builder = self._generate_plugins_menu_builder(plugin_loader, number)
+        groups_menu_builder = self._generate_groups_menu(contacts_manager, groups_service)
+
+        allowed = self._contact.tox_id in settings['auto_accept_from_friends']
+        auto = util_ui.tr('Disallow auto accept') if allowed else util_ui.tr('Allow auto accept')
+
+        builder = ContactMenuBuilder()
+        menu = (builder
+                .with_action(util_ui.tr('Set alias'), lambda: main_screen.set_alias(number))
+                .with_submenu(history_menu_builder)
+                .with_submenu(copy_menu_builder)
+                .with_action(auto, lambda: main_screen.auto_accept(number, not allowed))
+                .with_action(util_ui.tr('Remove friend'), lambda: main_screen.remove_friend(number))
+                .with_action(util_ui.tr('Block friend'), lambda: main_screen.block_friend(number))
+                .with_action(util_ui.tr('Notes'), lambda: main_screen.show_note(self._contact))
+                .with_optional_submenu(plugins_menu_builder)
+                .with_optional_submenu(groups_menu_builder)
+                ).build()
+
+        return menu
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    @staticmethod
+    def _generate_plugins_menu_builder(plugin_loader, number):
+        if plugin_loader is None:
+            return None
+        plugins_actions = plugin_loader.get_menu(number)
+        if not len(plugins_actions):
+            return None
+        plugins_menu_builder = ContactMenuBuilder()
+        (plugins_menu_builder
+         .with_name(util_ui.tr('Plugins'))
+         .with_actions(plugins_actions)
+         )
+
+        return plugins_menu_builder
+
+    def _generate_groups_menu(self, contacts_manager, groups_service):
+        chats = contacts_manager.get_group_chats()
+        if not len(chats) or self._contact.status is None:
+            return None
+        groups_menu_builder = ContactMenuBuilder()
+        (groups_menu_builder
+         .with_name(util_ui.tr('Invite to group'))
+         .with_actions([(g.name, lambda: groups_service.invite_friend(self._contact.number, g.number)) for g in chats])
+         )
+
+        return groups_menu_builder
+
+
+class GroupMenuGenerator(BaseContactMenuGenerator):
+
+    def generate(self, plugin_loader, contacts_manager, main_screen, settings, number, groups_service, history_loader):
+        copy_menu_builder = self._generate_copy_menu_builder(main_screen)
+        history_menu_builder = self._generate_history_menu_builder(history_loader, main_screen)
+
+        builder = ContactMenuBuilder()
+        menu = (builder
+                .with_action(util_ui.tr('Set alias'), lambda: main_screen.set_alias(number))
+                .with_submenu(copy_menu_builder)
+                .with_submenu(history_menu_builder)
+                .with_optional_action(util_ui.tr('Manage group'),
+                                      lambda: groups_service.show_group_management_screen(self._contact),
+                                      self._contact.is_self_founder())
+                .with_optional_action(util_ui.tr('Group settings'),
+                                      lambda: groups_service.show_group_settings_screen(self._contact),
+                                      not self._contact.is_self_founder())
+                .with_optional_action(util_ui.tr('Set topic'),
+                                      lambda: groups_service.set_group_topic(self._contact),
+                                      self._contact.is_self_moderator_or_founder())
+                .with_action(util_ui.tr('Bans list'),
+                             lambda: groups_service.show_bans_list(self._contact))
+                .with_action(util_ui.tr('Reconnect to group'),
+                             lambda: groups_service.reconnect_to_group(self._contact.number))
+                .with_optional_action(util_ui.tr('Disconnect from group'),
+                                      lambda: groups_service.disconnect_from_group(self._contact.number),
+                                      self._contact.status is not None)
+                .with_action(util_ui.tr('Leave group'), lambda: groups_service.leave_group(self._contact.number))
+                .with_action(util_ui.tr('Notes'), lambda: main_screen.show_note(self._contact))
+                ).build()
+
+        return menu
+
+
+class GroupPeerMenuGenerator(BaseContactMenuGenerator):
+
+    def generate(self, plugin_loader, contacts_manager, main_screen, settings, number, groups_service, history_loader):
+        copy_menu_builder = self._generate_copy_menu_builder(main_screen)
+        history_menu_builder = self._generate_history_menu_builder(history_loader, main_screen)
+
+        builder = ContactMenuBuilder()
+        menu = (builder
+                .with_action(util_ui.tr('Set alias'), lambda: main_screen.set_alias(number))
+                .with_submenu(copy_menu_builder)
+                .with_submenu(history_menu_builder)
+                .with_action(util_ui.tr('Quit chat'),
+                             lambda: contacts_manager.remove_group_peer(self._contact))
+                .with_action(util_ui.tr('Notes'), lambda: main_screen.show_note(self._contact))
+                ).build()
+
+        return menu

toxygen/contacts/contact_provider.py

@@ -0,0 +1,107 @@
+import common.tox_save as tox_save
+
+
+class ContactProvider(tox_save.ToxSave):
+
+    def __init__(self, tox, friend_factory, group_factory, group_peer_factory):
+        super().__init__(tox)
+        self._friend_factory = friend_factory
+        self._group_factory = group_factory
+        self._group_peer_factory = group_peer_factory
+        self._cache = {}  # key - contact's public key, value - contact instance
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Friends
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_friend_by_number(self, friend_number):
+        public_key = self._tox.friend_get_public_key(friend_number)
+
+        return self.get_friend_by_public_key(public_key)
+
+    def get_friend_by_public_key(self, public_key):
+        friend = self._get_contact_from_cache(public_key)
+        if friend is not None:
+            return friend
+        friend = self._friend_factory.create_friend_by_public_key(public_key)
+        self._add_to_cache(public_key, friend)
+
+        return friend
+
+    def get_all_friends(self):
+        friend_numbers = self._tox.self_get_friend_list()
+        friends = map(lambda n: self.get_friend_by_number(n), friend_numbers)
+
+        return list(friends)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Groups
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_all_groups(self):
+        group_numbers = range(self._tox.group_get_number_groups())
+        groups = map(lambda n: self.get_group_by_number(n), group_numbers)
+
+        return list(groups)
+
+    def get_group_by_number(self, group_number):
+        public_key = self._tox.group_get_chat_id(group_number)
+
+        return self.get_group_by_public_key(public_key)
+
+    def get_group_by_public_key(self, public_key):
+        group = self._get_contact_from_cache(public_key)
+        if group is not None:
+            return group
+        group = self._group_factory.create_group_by_public_key(public_key)
+        self._add_to_cache(public_key, group)
+
+        return group
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Group peers
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_all_group_peers(self):
+        return list()
+
+    def get_group_peer_by_id(self, group, peer_id):
+        peer = group.get_peer_by_id(peer_id)
+
+        return self._get_group_peer(group, peer)
+
+    def get_group_peer_by_public_key(self, group, public_key):
+        peer = group.get_peer_by_public_key(public_key)
+
+        return self._get_group_peer(group, peer)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # All contacts
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_all(self):
+        return self.get_all_friends() + self.get_all_groups() + self.get_all_group_peers()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Caching
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def clear_cache(self):
+        self._cache.clear()
+
+    def remove_contact_from_cache(self, contact_public_key):
+        if contact_public_key in self._cache:
+            del self._cache[contact_public_key]
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _get_contact_from_cache(self, public_key):
+        return self._cache[public_key] if public_key in self._cache else None
+
+    def _add_to_cache(self, public_key, contact):
+        self._cache[public_key] = contact
+
+    def _get_group_peer(self, group, peer):
+        return self._group_peer_factory.create_group_peer(group, peer)

toxygen/contacts/contacts_manager.py

@@ -0,0 +1,575 @@
+from contacts.friend import Friend
+from contacts.group_chat import GroupChat
+from messenger.messages import *
+from common.tox_save import ToxSave
+from contacts.group_peer_contact import GroupPeerContact
+
+
+class ContactsManager(ToxSave):
+    """
+    Represents contacts list.
+    """
+
+    def __init__(self, tox, settings, screen, profile_manager, contact_provider, history, tox_dns,
+                 messages_items_factory):
+        super().__init__(tox)
+        self._settings = settings
+        self._screen = screen
+        self._profile_manager = profile_manager
+        self._contact_provider = contact_provider
+        self._tox_dns = tox_dns
+        self._messages_items_factory = messages_items_factory
+        self._messages = screen.messages
+        self._contacts, self._active_contact = [], -1
+        self._active_contact_changed = Event()
+        self._sorting = settings['sorting']
+        self._filter_string = ''
+        screen.contacts_filter.setCurrentIndex(int(self._sorting))
+        self._history = history
+        self._load_contacts()
+
+    def get_contact(self, num):
+        if num < 0 or num >= len(self._contacts):
+            return None
+        return self._contacts[num]
+
+    def get_curr_contact(self):
+        return self._contacts[self._active_contact] if self._active_contact + 1 else None
+
+    def save_profile(self):
+        data = self._tox.get_savedata()
+        self._profile_manager.save_profile(data)
+
+    def is_friend_active(self, friend_number):
+        if not self.is_active_a_friend():
+            return False
+
+        return self.get_curr_contact().number == friend_number
+
+    def is_group_active(self, group_number):
+        if self.is_active_a_friend():
+            return False
+
+        return self.get_curr_contact().number == group_number
+
+    def is_contact_active(self, contact):
+        return self._contacts[self._active_contact].tox_id == contact.tox_id
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Reconnection support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def reset_contacts_statuses(self):
+        for contact in self._contacts:
+            contact.status = None
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Work with active friend
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_active(self):
+        return self._active_contact
+
+    def set_active(self, value):
+        """
+        Change current active friend or update info
+        :param value: number of new active friend in friend's list
+        """
+        if value is None and self._active_contact == -1:  # nothing to update
+            return
+        if value == -1:  # all friends were deleted
+            self._screen.account_name.setText('')
+            self._screen.account_status.setText('')
+            self._screen.account_status.setToolTip('')
+            self._active_contact = -1
+            self._screen.account_avatar.setHidden(True)
+            self._messages.clear()
+            self._screen.messageEdit.clear()
+            return
+        try:
+            self._screen.typing.setVisible(False)
+            current_contact = self.get_curr_contact()
+            if current_contact is not None:
+                # TODO: send when needed
+                current_contact.typing_notification_handler.send(self._tox, False)
+                current_contact.remove_messages_widgets()  # TODO: if required
+                self._unsubscribe_from_events(current_contact)
+
+            if self._active_contact + 1 and self._active_contact != value:
+                try:
+                    current_contact.curr_text = self._screen.messageEdit.toPlainText()
+                except:
+                    pass
+            contact = self._contacts[value]
+            self._subscribe_to_events(contact)
+            contact.remove_invalid_unsent_files()
+            if self._active_contact != value:
+                self._screen.messageEdit.setPlainText(contact.curr_text)
+            self._active_contact = value
+            contact.reset_messages()
+            if not self._settings['save_history']:
+                contact.delete_old_messages()
+            self._messages.clear()
+            contact.load_corr()
+            corr = contact.get_corr()[-PAGE_SIZE:]
+            for message in corr:
+                if message.type == MESSAGE_TYPE['FILE_TRANSFER']:
+                    self._messages_items_factory.create_file_transfer_item(message)
+                elif message.type == MESSAGE_TYPE['INLINE']:
+                    self._messages_items_factory.create_inline_item(message)
+                else:
+                    self._messages_items_factory.create_message_item(message)
+            self._messages.scrollToBottom()
+            # if value in self._call:
+            #     self._screen.active_call()
+            # elif value in self._incoming_calls:
+            #     self._screen.incoming_call()
+            # else:
+            #     self._screen.call_finished()
+            self._set_current_contact_data(contact)
+            self._active_contact_changed(contact)
+        except Exception as ex:  # no friend found. ignore
+            util.log('Friend value: ' + str(value))
+            util.log('Error in set active: ' + str(ex))
+            raise
+
+    active_contact = property(get_active, set_active)
+
+    def get_active_contact_changed(self):
+        return self._active_contact_changed
+
+    active_contact_changed = property(get_active_contact_changed)
+
+    def update(self):
+        if self._active_contact + 1:
+            self.set_active(self._active_contact)
+
+    def is_active_a_friend(self):
+        return type(self.get_curr_contact()) is Friend
+
+    def is_active_a_group(self):
+        return type(self.get_curr_contact()) is GroupChat
+
+    def is_active_a_group_chat_peer(self):
+        return type(self.get_curr_contact()) is GroupPeerContact
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Filtration
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def filtration_and_sorting(self, sorting=0, filter_str=''):
+        """
+        Filtration of friends list
+        :param sorting: 0 - no sorting, 1 - online only, 2 - online first, 3 - by name,
+        4 - online and by name, 5 - online first and by name
+        :param filter_str: show contacts which name contains this substring
+        """
+        filter_str = filter_str.lower()
+        current_contact = self.get_curr_contact()
+
+        if sorting > 5 or sorting < 0:
+            sorting = 0
+
+        if sorting in (1, 2, 4, 5):  # online first
+            self._contacts = sorted(self._contacts, key=lambda x: int(x.status is not None), reverse=True)
+            sort_by_name = sorting in (4, 5)
+            # save results of previous sorting
+            online_friends = filter(lambda x: x.status is not None, self._contacts)
+            online_friends_count = len(list(online_friends))
+            part1 = self._contacts[:online_friends_count]
+            part2 = self._contacts[online_friends_count:]
+            key_lambda = lambda x: x.name.lower() if sort_by_name else x.number
+            part1 = sorted(part1, key=key_lambda)
+            part2 = sorted(part2, key=key_lambda)
+            self._contacts = part1 + part2
+        elif sorting == 0:
+            contacts = sorted(self._contacts, key=lambda c: c.number)
+            friends = filter(lambda c: type(c) is Friend, contacts)
+            groups = filter(lambda c: type(c) is GroupChat, contacts)
+            group_peers = filter(lambda c: type(c) is GroupPeerContact, contacts)
+            self._contacts = list(friends) + list(groups) + list(group_peers)
+        else:
+            self._contacts = sorted(self._contacts, key=lambda x: x.name.lower())
+
+        # change item widgets
+        for index, contact in enumerate(self._contacts):
+            list_item = self._screen.friends_list.item(index)
+            item_widget = self._screen.friends_list.itemWidget(list_item)
+            contact.set_widget(item_widget)
+
+        for index, friend in enumerate(self._contacts):
+            filtered_by_name = filter_str in friend.name.lower()
+            friend.visibility = (friend.status is not None or sorting not in (1, 4)) and filtered_by_name
+            # show friend even if it's hidden when there any unread messages/actions
+            friend.visibility = friend.visibility or friend.messages or friend.actions
+            item = self._screen.friends_list.item(index)
+            item_widget = self._screen.friends_list.itemWidget(item)
+            item.setSizeHint(QtCore.QSize(250, item_widget.height() if friend.visibility else 0))
+
+        # save soring results
+        self._sorting, self._filter_string = sorting, filter_str
+        self._settings['sorting'] = self._sorting
+        self._settings.save()
+
+        # update active contact
+        if current_contact is not None:
+            index = self._contacts.index(current_contact)
+            self.set_active(index)
+
+    def update_filtration(self):
+        """
+        Update list of contacts when 1 of friends change connection status
+        """
+        self.filtration_and_sorting(self._sorting, self._filter_string)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Contact getters
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_friend_by_number(self, number):
+        return list(filter(lambda c: c.number == number and type(c) is Friend, self._contacts))[0]
+
+    def get_group_by_number(self, number):
+        return list(filter(lambda c: c.number == number and type(c) is GroupChat, self._contacts))[0]
+
+    def get_or_create_group_peer_contact(self, group_number, peer_id):
+        group = self.get_group_by_number(group_number)
+        peer = group.get_peer_by_id(peer_id)
+        if not self.check_if_contact_exists(peer.public_key):
+            self.add_group_peer(group, peer)
+
+        return self.get_contact_by_tox_id(peer.public_key)
+
+    def check_if_contact_exists(self, tox_id):
+        return any(filter(lambda c: c.tox_id == tox_id, self._contacts))
+
+    def get_contact_by_tox_id(self, tox_id):
+        return list(filter(lambda c: c.tox_id == tox_id, self._contacts))[0]
+
+    def get_active_number(self):
+        return self.get_curr_contact().number if self._active_contact + 1 else -1
+
+    def get_active_name(self):
+        return self.get_curr_contact().name if self._active_contact + 1 else ''
+
+    def is_active_online(self):
+        return self._active_contact + 1 and self.get_curr_contact().status is not None
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Work with friends (remove, block, set alias, get public key)
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def set_alias(self, num):
+        """
+        Set new alias for friend
+        """
+        friend = self._contacts[num]
+        name = friend.name
+        text = util_ui.tr("Enter new alias for friend {} or leave empty to use friend's name:").format(name)
+        title = util_ui.tr('Set alias')
+        text, ok = util_ui.text_dialog(text, title, name)
+        if not ok:
+            return
+        aliases = self._settings['friends_aliases']
+        if text:
+            friend.name = text
+            try:
+                index = list(map(lambda x: x[0], aliases)).index(friend.tox_id)
+                aliases[index] = (friend.tox_id, text)
+            except:
+                aliases.append((friend.tox_id, text))
+            friend.set_alias(text)
+        else:  # use default name
+            friend.name = self._tox.friend_get_name(friend.number)
+            friend.set_alias('')
+            try:
+                index = list(map(lambda x: x[0], aliases)).index(friend.tox_id)
+                del aliases[index]
+            except:
+                pass
+        self._settings.save()
+
+    def friend_public_key(self, num):
+        return self._contacts[num].tox_id
+
+    def delete_friend(self, num):
+        """
+        Removes friend from contact list
+        :param num: number of friend in list
+        """
+        friend = self._contacts[num]
+        self._cleanup_contact_data(friend)
+        self._tox.friend_delete(friend.number)
+        self._delete_contact(num)
+
+    def add_friend(self, tox_id):
+        """
+        Adds friend to list
+        """
+        self._tox.friend_add_norequest(tox_id)
+        self._add_friend(tox_id)
+        self.update_filtration()
+
+    def block_user(self, tox_id):
+        """
+        Block user with specified tox id (or public key) - delete from friends list and ignore friend requests
+        """
+        tox_id = tox_id[:TOX_PUBLIC_KEY_SIZE * 2]
+        if tox_id == self._tox.self_get_address[:TOX_PUBLIC_KEY_SIZE * 2]:
+            return
+        if tox_id not in self._settings['blocked']:
+            self._settings['blocked'].append(tox_id)
+            self._settings.save()
+        try:
+            num = self._tox.friend_by_public_key(tox_id)
+            self.delete_friend(num)
+            self.save_profile()
+        except:  # not in friend list
+            pass
+
+    def unblock_user(self, tox_id, add_to_friend_list):
+        """
+        Unblock user
+        :param tox_id: tox id of contact
+        :param add_to_friend_list: add this contact to friend list or not
+        """
+        self._settings['blocked'].remove(tox_id)
+        self._settings.save()
+        if add_to_friend_list:
+            self.add_friend(tox_id)
+            self.save_profile()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Groups support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_group_chats(self):
+        return list(filter(lambda c: type(c) is GroupChat, self._contacts))
+
+    def add_group(self, group_number):
+        group = self._contact_provider.get_group_by_number(group_number)
+        index = len(self._contacts)
+        self._contacts.append(group)
+        group.reset_avatar(self._settings['identicons'])
+        self._save_profile()
+        self.set_active(index)
+        self.update_filtration()
+
+    def delete_group(self, group_number):
+        group = self.get_group_by_number(group_number)
+        self._cleanup_contact_data(group)
+        num = self._contacts.index(group)
+        self._delete_contact(num)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Groups private messaging
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def add_group_peer(self, group, peer):
+        contact = self._contact_provider.get_group_peer_by_id(group, peer.id)
+        if self.check_if_contact_exists(contact.tox_id):
+            return
+        self._contacts.append(contact)
+        contact.reset_avatar(self._settings['identicons'])
+        self._save_profile()
+
+    def remove_group_peer_by_id(self, group, peer_id):
+        peer = group.get_peer_by_id(peer_id)
+        if not self.check_if_contact_exists(peer.public_key):
+            return
+        contact = self.get_contact_by_tox_id(peer.public_key)
+        self.remove_group_peer(contact)
+
+    def remove_group_peer(self, group_peer_contact):
+        contact = self.get_contact_by_tox_id(group_peer_contact.tox_id)
+        self._cleanup_contact_data(contact)
+        num = self._contacts.index(contact)
+        self._delete_contact(num)
+
+    def get_gc_peer_name(self, name):
+        group = self.get_curr_contact()
+
+        names = sorted(group.get_peers_names())
+        if name in names:  # return next nick
+            index = names.index(name)
+            index = (index + 1) % len(names)
+
+            return names[index]
+
+        suggested_names = list(filter(lambda x: x.startswith(name), names))
+        if not len(suggested_names):
+            return '\t'
+
+        return suggested_names[0]
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Friend requests
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def send_friend_request(self, tox_id, message):
+        """
+        Function tries to send request to contact with specified id
+        :param tox_id: id of new contact or tox dns 4 value
+        :param message: additional message
+        :return: True on success else error string
+        """
+        try:
+            message = message or 'Hello! Add me to your contact list please'
+            if '@' in tox_id:  # value like groupbot@toxme.io
+                tox_id = self._tox_dns.lookup(tox_id)
+                if tox_id is None:
+                    raise Exception('TOX DNS lookup failed')
+            if len(tox_id) == TOX_PUBLIC_KEY_SIZE * 2:  # public key
+                self.add_friend(tox_id)
+                title = util_ui.tr('Friend added')
+                text = util_ui.tr('Friend added without sending friend request')
+                util_ui.message_box(text, title)
+            else:
+                self._tox.friend_add(tox_id, message.encode('utf-8'))
+                tox_id = tox_id[:TOX_PUBLIC_KEY_SIZE * 2]
+                self._add_friend(tox_id)
+                self.update_filtration()
+            self.save_profile()
+            return True
+        except Exception as ex:  # wrong data
+            util.log('Friend request failed with ' + str(ex))
+            return str(ex)
+
+    def process_friend_request(self, tox_id, message):
+        """
+        Accept or ignore friend request
+        :param tox_id: tox id of contact
+        :param message: message
+        """
+        if tox_id in self._settings['blocked']:
+            return
+        try:
+            text = util_ui.tr('User {} wants to add you to contact list. Message:\n{}')
+            reply = util_ui.question(text.format(tox_id, message), util_ui.tr('Friend request'))
+            if reply:  # accepted
+                self.add_friend(tox_id)
+                data = self._tox.get_savedata()
+                self._profile_manager.save_profile(data)
+        except Exception as ex:  # something is wrong
+            util.log('Accept friend request failed! ' + str(ex))
+
+    def can_send_typing_notification(self):
+        return self._settings['typing_notifications'] and not self.is_active_a_group_chat_peer()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Contacts numbers update
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def update_friends_numbers(self):
+        for friend in self._contact_provider.get_all_friends():
+            friend.number = self._tox.friend_by_public_key(friend.tox_id)
+        self.update_filtration()
+
+    def update_groups_numbers(self):
+        groups = self._contact_provider.get_all_groups()
+        for i in range(len(groups)):
+            chat_id = self._tox.group_get_chat_id(i)
+            group = self.get_contact_by_tox_id(chat_id)
+            group.number = i
+        self.update_filtration()
+
+    def update_groups_lists(self):
+        groups = self._contact_provider.get_all_groups()
+        for group in groups:
+            group.remove_all_peers_except_self()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _load_contacts(self):
+        self._load_friends()
+        self._load_groups()
+        if len(self._contacts):
+            self.set_active(0)
+        for contact in filter(lambda c: not c.has_avatar(), self._contacts):
+            contact.reset_avatar(self._settings['identicons'])
+        self.update_filtration()
+
+    def _load_friends(self):
+        self._contacts.extend(self._contact_provider.get_all_friends())
+
+    def _load_groups(self):
+        self._contacts.extend(self._contact_provider.get_all_groups())
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Current contact subscriptions
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _subscribe_to_events(self, contact):
+        contact.name_changed_event.add_callback(self._current_contact_name_changed)
+        contact.status_changed_event.add_callback(self._current_contact_status_changed)
+        contact.status_message_changed_event.add_callback(self._current_contact_status_message_changed)
+        contact.avatar_changed_event.add_callback(self._current_contact_avatar_changed)
+
+    def _unsubscribe_from_events(self, contact):
+        contact.name_changed_event.remove_callback(self._current_contact_name_changed)
+        contact.status_changed_event.remove_callback(self._current_contact_status_changed)
+        contact.status_message_changed_event.remove_callback(self._current_contact_status_message_changed)
+        contact.avatar_changed_event.remove_callback(self._current_contact_avatar_changed)
+
+    def _current_contact_name_changed(self, name):
+        self._screen.account_name.setText(name)
+
+    def _current_contact_status_changed(self, status):
+        pass
+
+    def _current_contact_status_message_changed(self, status_message):
+        self._screen.account_status.setText(status_message)
+
+    def _current_contact_avatar_changed(self, avatar_path):
+        self._set_current_contact_avatar(avatar_path)
+
+    def _set_current_contact_data(self, contact):
+        self._screen.account_name.setText(contact.name)
+        self._screen.account_status.setText(contact.status_message)
+        self._set_current_contact_avatar(contact.get_avatar_path())
+
+    def _set_current_contact_avatar(self, avatar_path):
+        width = self._screen.account_avatar.width()
+        pixmap = QtGui.QPixmap(avatar_path)
+        self._screen.account_avatar.setPixmap(pixmap.scaled(width, width,
+                                                            QtCore.Qt.KeepAspectRatio, QtCore.Qt.SmoothTransformation))
+
+    def _add_friend(self, tox_id):
+        self._history.add_friend_to_db(tox_id)
+        friend = self._contact_provider.get_friend_by_public_key(tox_id)
+        index = len(self._contacts)
+        self._contacts.append(friend)
+        if not friend.has_avatar():
+            friend.reset_avatar(self._settings['identicons'])
+        self._save_profile()
+        self.set_active(index)
+
+    def _save_profile(self):
+        data = self._tox.get_savedata()
+        self._profile_manager.save_profile(data)
+
+    def _cleanup_contact_data(self, contact):
+        try:
+            index = list(map(lambda x: x[0], self._settings['friends_aliases'])).index(contact.tox_id)
+            del self._settings['friends_aliases'][index]
+        except:
+            pass
+        if contact.tox_id in self._settings['notes']:
+            del self._settings['notes'][contact.tox_id]
+        self._settings.save()
+        self._history.delete_history(contact)
+        if contact.has_avatar():
+            avatar_path = contact.get_contact_avatar_path()
+            remove(avatar_path)
+
+    def _delete_contact(self, num):
+        self.set_active(-1 if len(self._contacts) == 1 else 0)
+
+        self._contact_provider.remove_contact_from_cache(self._contacts[num].tox_id)
+        del self._contacts[num]
+        self._screen.friends_list.takeItem(num)
+        self._save_profile()
+
+        self.update_filtration()

toxygen/contacts/friend.py

@@ -0,0 +1,74 @@
+from contacts import contact, common
+from messenger.messages import *
+import os
+from contacts.contact_menu import *
+
+
+class Friend(contact.Contact):
+    """
+    Friend in list of friends.
+    """
+
+    def __init__(self, profile_manager, message_getter, number, name, status_message, widget, tox_id):
+        super().__init__(profile_manager, message_getter, number, name, status_message, widget, tox_id)
+        self._receipts = 0
+        self._typing_notification_handler = common.FriendTypingNotificationHandler(number)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # File transfers support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def insert_inline(self, before_message_id, inline):
+        """
+        Update status of active transfer and load inline if needed
+        """
+        try:
+            tr = list(filter(lambda m: m.message_id == before_message_id, self._corr))[0]
+            i = self._corr.index(tr)
+            if inline:  # inline was loaded
+                self._corr.insert(i, inline)
+            return i - len(self._corr)
+        except:
+            pass
+
+    def get_unsent_files(self):
+        messages = filter(lambda m: type(m) is UnsentFileMessage, self._corr)
+        return list(messages)
+
+    def clear_unsent_files(self):
+        self._corr = list(filter(lambda m: type(m) is not UnsentFileMessage, self._corr))
+
+    def remove_invalid_unsent_files(self):
+        def is_valid(message):
+            if type(message) is not UnsentFileMessage:
+                return True
+            if message.data is not None:
+                return True
+            return os.path.exists(message.path)
+
+        self._corr = list(filter(is_valid, self._corr))
+
+    def delete_one_unsent_file(self, message_id):
+        self._corr = list(filter(lambda m: not (type(m) is UnsentFileMessage and m.message_id == message_id),
+                                 self._corr))
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Full status
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_full_status(self):
+        return self._status_message
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Typing notifications
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_typing_notification_handler(self):
+        return self._typing_notification_handler
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Context menu support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_context_menu_generator(self):
+        return FriendMenuGenerator(self)

toxygen/contacts/friend_factory.py

@@ -0,0 +1,44 @@
+from contacts.friend import Friend
+from common.tox_save import ToxSave
+
+
+class FriendFactory(ToxSave):
+
+    def __init__(self, profile_manager, settings, tox, db, items_factory):
+        super().__init__(tox)
+        self._profile_manager = profile_manager
+        self._settings = settings
+        self._db = db
+        self._items_factory = items_factory
+
+    def create_friend_by_public_key(self, public_key):
+        friend_number = self._tox.friend_by_public_key(public_key)
+
+        return self.create_friend_by_number(friend_number)
+
+    def create_friend_by_number(self, friend_number):
+        aliases = self._settings['friends_aliases']
+        tox_id = self._tox.friend_get_public_key(friend_number)
+        try:
+            alias = list(filter(lambda x: x[0] == tox_id, aliases))[0][1]
+        except:
+            alias = ''
+        item = self._create_friend_item()
+        name = alias or self._tox.friend_get_name(friend_number) or tox_id
+        status_message = self._tox.friend_get_status_message(friend_number)
+        message_getter = self._db.messages_getter(tox_id)
+        friend = Friend(self._profile_manager, message_getter, friend_number, name, status_message, item, tox_id)
+        friend.set_alias(alias)
+
+        return friend
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _create_friend_item(self):
+        """
+        Method-factory
+        :return: new widget for friend instance
+        """
+        return self._items_factory.create_contact_item()

toxygen/contacts/group_chat.py

@@ -0,0 +1,137 @@
+from contacts import contact
+from contacts.contact_menu import GroupMenuGenerator
+import utils.util as util
+from groups.group_peer import GroupChatPeer
+from wrapper import toxcore_enums_and_consts as constants
+from common.tox_save import ToxSave
+from groups.group_ban import GroupBan
+
+
+class GroupChat(contact.Contact, ToxSave):
+
+    def __init__(self, tox, profile_manager, message_getter, number, name, status_message, widget, tox_id, is_private):
+        super().__init__(profile_manager, message_getter, number, name, status_message, widget, tox_id)
+        ToxSave.__init__(self, tox)
+
+        self._is_private = is_private
+        self._password = str()
+        self._peers_limit = 512
+        self._peers = []
+        self._add_self_to_gc()
+
+    def remove_invalid_unsent_files(self):
+        pass
+
+    def get_context_menu_generator(self):
+        return GroupMenuGenerator(self)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Properties
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_is_private(self):
+        return self._is_private
+
+    def set_is_private(self, is_private):
+        self._is_private = is_private
+
+    is_private = property(get_is_private, set_is_private)
+
+    def get_password(self):
+        return self._password
+
+    def set_password(self, password):
+        self._password = password
+
+    password = property(get_password, set_password)
+
+    def get_peers_limit(self):
+        return self._peers_limit
+
+    def set_peers_limit(self, peers_limit):
+        self._peers_limit = peers_limit
+
+    peers_limit = property(get_peers_limit, set_peers_limit)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Peers methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_self_peer(self):
+        return self._peers[0]
+
+    def get_self_name(self):
+        return self._peers[0].name
+
+    def get_self_role(self):
+        return self._peers[0].role
+
+    def is_self_moderator_or_founder(self):
+        return self.get_self_role() <= constants.TOX_GROUP_ROLE['MODERATOR']
+
+    def is_self_founder(self):
+        return self.get_self_role() == constants.TOX_GROUP_ROLE['FOUNDER']
+
+    def add_peer(self, peer_id, is_current_user=False):
+        peer = GroupChatPeer(peer_id,
+                             self._tox.group_peer_get_name(self._number, peer_id),
+                             self._tox.group_peer_get_status(self._number, peer_id),
+                             self._tox.group_peer_get_role(self._number, peer_id),
+                             self._tox.group_peer_get_public_key(self._number, peer_id),
+                             is_current_user)
+        self._peers.append(peer)
+
+    def remove_peer(self, peer_id):
+        if peer_id == self.get_self_peer().id:  # we were kicked or banned
+            self.remove_all_peers_except_self()
+        else:
+            peer = self.get_peer_by_id(peer_id)
+            self._peers.remove(peer)
+
+    def get_peer_by_id(self, peer_id):
+        peers = list(filter(lambda p: p.id == peer_id, self._peers))
+
+        return peers[0]
+
+    def get_peer_by_public_key(self, public_key):
+        peers = list(filter(lambda p: p.public_key == public_key, self._peers))
+
+        return peers[0]
+
+    def remove_all_peers_except_self(self):
+        self._peers = self._peers[:1]
+
+    def get_peers_names(self):
+        peers_names = map(lambda p: p.name, self._peers)
+
+        return list(peers_names)
+
+    def get_peers(self):
+        return self._peers[:]
+
+    peers = property(get_peers)
+
+    def get_bans(self):
+        ban_ids = self._tox.group_ban_get_list(self._number)
+        bans = []
+        for ban_id in ban_ids:
+            ban = GroupBan(ban_id,
+                           self._tox.group_ban_get_target(self._number, ban_id),
+                           self._tox.group_ban_get_time_set(self._number, ban_id))
+            bans.append(ban)
+
+        return bans
+
+    bans = property(get_bans)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    @staticmethod
+    def _get_default_avatar_path():
+        return util.join_path(util.get_images_directory(), 'group.png')
+
+    def _add_self_to_gc(self):
+        peer_id = self._tox.group_self_get_peer_id(self._number)
+        self.add_peer(peer_id, True)

toxygen/contacts/group_factory.py

@@ -0,0 +1,53 @@
+from contacts.group_chat import GroupChat
+from common.tox_save import ToxSave
+import wrapper.toxcore_enums_and_consts as constants
+
+
+class GroupFactory(ToxSave):
+
+    def __init__(self, profile_manager, settings, tox, db, items_factory):
+        super().__init__(tox)
+        self._profile_manager = profile_manager
+        self._settings = settings
+        self._db = db
+        self._items_factory = items_factory
+
+    def create_group_by_public_key(self, public_key):
+        group_number = self._get_group_number_by_chat_id(public_key)
+
+        return self.create_group_by_number(group_number)
+
+    def create_group_by_number(self, group_number):
+        aliases = self._settings['friends_aliases']
+        tox_id = self._tox.group_get_chat_id(group_number)
+        try:
+            alias = list(filter(lambda x: x[0] == tox_id, aliases))[0][1]
+        except:
+            alias = ''
+        item = self._create_group_item()
+        name = alias or self._tox.group_get_name(group_number) or tox_id
+        status_message = self._tox.group_get_topic(group_number)
+        message_getter = self._db.messages_getter(tox_id)
+        is_private = self._tox.group_get_privacy_state(group_number) == constants.TOX_GROUP_PRIVACY_STATE['PRIVATE']
+        group = GroupChat(self._tox, self._profile_manager, message_getter, group_number, name, status_message,
+                          item, tox_id, is_private)
+        group.set_alias(alias)
+
+        return group
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _create_group_item(self):
+        """
+        Method-factory
+        :return: new widget for group instance
+        """
+        return self._items_factory.create_contact_item()
+
+    def _get_group_number_by_chat_id(self, chat_id):
+        for i in range(self._tox.group_get_number_groups()):
+            if self._tox.group_get_chat_id(i) == chat_id:
+                return i
+        return -1

toxygen/contacts/group_peer_contact.py

@@ -0,0 +1,20 @@
+import contacts.contact
+from contacts.contact_menu import GroupPeerMenuGenerator
+
+
+class GroupPeerContact(contacts.contact.Contact):
+
+    def __init__(self, profile_manager, message_getter, peer_number, name, widget, tox_id, group_pk):
+        super().__init__(profile_manager, message_getter, peer_number, name, str(), widget, tox_id)
+        self._group_pk = group_pk
+
+    def get_group_pk(self):
+        return self._group_pk
+
+    group_pk = property(get_group_pk)
+
+    def remove_invalid_unsent_files(self):
+        pass
+
+    def get_context_menu_generator(self):
+        return GroupPeerMenuGenerator(self)

toxygen/contacts/group_peer_factory.py

@@ -0,0 +1,23 @@
+from common.tox_save import ToxSave
+from contacts.group_peer_contact import GroupPeerContact
+
+
+class GroupPeerFactory(ToxSave):
+
+    def __init__(self, tox, profile_manager, db, items_factory):
+        super().__init__(tox)
+        self._profile_manager = profile_manager
+        self._db = db
+        self._items_factory = items_factory
+
+    def create_group_peer(self, group, peer):
+        item = self._create_group_peer_item()
+        message_getter = self._db.messages_getter(peer.public_key)
+        group_peer_contact = GroupPeerContact(self._profile_manager, message_getter, peer.id, peer.name,
+                                              item, peer.public_key, group.tox_id)
+        group_peer_contact.status = peer.status
+
+        return group_peer_contact
+
+    def _create_group_peer_item(self):
+        return self._items_factory.create_contact_item()

toxygen/contacts/profile.py

@@ -0,0 +1,87 @@
+from contacts import basecontact
+import random
+import threading
+import common.tox_save as tox_save
+from middleware.threads import invoke_in_main_thread
+
+
+class Profile(basecontact.BaseContact, tox_save.ToxSave):
+    """
+    Profile of current toxygen user.
+    """
+    def __init__(self, profile_manager, tox, screen, contacts_provider, reset_action):
+        """
+        :param tox: tox instance
+        :param screen: ref to main screen
+        """
+        basecontact.BaseContact.__init__(self,
+                                         profile_manager,
+                                         tox.self_get_name(),
+                                         tox.self_get_status_message(),
+                                         screen,
+                                         tox.self_get_address())
+        tox_save.ToxSave.__init__(self, tox)
+        self._screen = screen
+        self._messages = screen.messages
+        self._contacts_provider = contacts_provider
+        self._reset_action = reset_action
+        self._waiting_for_reconnection = False
+        self._timer = None
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Edit current user's data
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def change_status(self):
+        """
+        Changes status of user (online, away, busy)
+        """
+        if self._status is not None:
+            self.set_status((self._status + 1) % 3)
+
+    def set_status(self, status):
+        super().set_status(status)
+        if status is not None:
+            self._tox.self_set_status(status)
+        elif not self._waiting_for_reconnection:
+            self._waiting_for_reconnection = True
+            self._timer = threading.Timer(50, self._reconnect)
+            self._timer.start()
+
+    def set_name(self, value):
+        if self.name == value:
+            return
+        super().set_name(value)
+        self._tox.self_set_name(self._name)
+
+    def set_status_message(self, value):
+        super().set_status_message(value)
+        self._tox.self_set_status_message(self._status_message)
+
+    def set_new_nospam(self):
+        """Sets new nospam part of tox id"""
+        self._tox.self_set_nospam(random.randint(0, 4294967295))  # no spam - uint32
+        self._tox_id = self._tox.self_get_address()
+
+        return self._tox_id
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Reset
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def restart(self):
+        """
+        Recreate tox instance
+        """
+        self.status = None
+        invoke_in_main_thread(self._reset_action)
+
+    def _reconnect(self):
+        self._waiting_for_reconnection = False
+        contacts = self._contacts_provider.get_all_friends()
+        all_friends_offline = all(list(map(lambda x: x.status is None, contacts)))
+        if self.status is None or (all_friends_offline and len(contacts)):
+            self._waiting_for_reconnection = True
+            self.restart()
+            self._timer = threading.Timer(50, self._reconnect)
+            self._timer.start()

toxygen/file_transfers/file_transfers.py

@@ -0,0 +1,351 @@
+from wrapper.toxcore_enums_and_consts import TOX_FILE_KIND, TOX_FILE_CONTROL
+from os.path import basename, getsize, exists, dirname
+from os import remove, rename, chdir
+from time import time
+from wrapper.tox import Tox
+from common.event import Event
+from middleware.threads import invoke_in_main_thread
+
+
+FILE_TRANSFER_STATE = {
+    'RUNNING': 0,
+    'PAUSED_BY_USER': 1,
+    'CANCELLED': 2,
+    'FINISHED': 3,
+    'PAUSED_BY_FRIEND': 4,
+    'INCOMING_NOT_STARTED': 5,
+    'OUTGOING_NOT_STARTED': 6,
+    'UNSENT': 7
+}
+
+ACTIVE_FILE_TRANSFERS = (0, 1, 4, 5, 6)
+
+PAUSED_FILE_TRANSFERS = (1, 4, 5, 6)
+
+DO_NOT_SHOW_ACCEPT_BUTTON = (2, 3, 4, 6)
+
+SHOW_PROGRESS_BAR = (0, 1, 4)
+
+
+def is_inline(file_name):
+    allowed_inlines = ('toxygen_inline.png', 'utox-inline.png', 'sticker.png')
+
+    return file_name in allowed_inlines or file_name.startswith('qTox_Image_')
+
+
+class FileTransfer:
+    """
+    Superclass for file transfers
+    """
+
+    def __init__(self, path, tox, friend_number, size, file_number=None):
+        self._path = path
+        self._tox = tox
+        self._friend_number = friend_number
+        self._state = FILE_TRANSFER_STATE['RUNNING']
+        self._file_number = file_number
+        self._creation_time = None
+        self._size = float(size)
+        self._done = 0
+        self._state_changed_event = Event()
+        self._finished_event = Event()
+        self._file_id = self._file = None
+
+    def set_state_changed_handler(self, handler):
+        self._state_changed_event += lambda *args: invoke_in_main_thread(handler, *args)
+
+    def set_transfer_finished_handler(self, handler):
+        self._finished_event += lambda *args: invoke_in_main_thread(handler, *args)
+
+    def get_file_number(self):
+        return self._file_number
+
+    file_number = property(get_file_number)
+
+    def get_state(self):
+        return self._state
+
+    def set_state(self, value):
+        self._state = value
+        self._signal()
+
+    state = property(get_state, set_state)
+
+    def get_friend_number(self):
+        return self._friend_number
+
+    friend_number = property(get_friend_number)
+
+    def get_file_id(self):
+        return self._file_id
+
+    file_id = property(get_file_id)
+
+    def get_path(self):
+        return self._path
+
+    path = property(get_path)
+
+    def get_size(self):
+        return self._size
+
+    size = property(get_size)
+
+    def cancel(self):
+        self.send_control(TOX_FILE_CONTROL['CANCEL'])
+        if self._file is not None:
+            self._file.close()
+        self._signal()
+
+    def cancelled(self):
+        if self._file is not None:
+            self._file.close()
+        self.set_state(FILE_TRANSFER_STATE['CANCELLED'])
+
+    def pause(self, by_friend):
+        if not by_friend:
+            self.send_control(TOX_FILE_CONTROL['PAUSE'])
+        else:
+            self.set_state(FILE_TRANSFER_STATE['PAUSED_BY_FRIEND'])
+
+    def send_control(self, control):
+        if self._tox.file_control(self._friend_number, self._file_number, control):
+            self.set_state(control)
+
+    def get_file_id(self):
+        return self._tox.file_get_file_id(self._friend_number, self._file_number)
+
+    def _signal(self):
+        percentage = self._done / self._size if self._size else 0
+        if self._creation_time is None or not percentage:
+            t = -1
+        else:
+            t = ((time() - self._creation_time) / percentage) * (1 - percentage)
+        self._state_changed_event(self.state, percentage, int(t))
+
+    def _finished(self):
+        self._finished_event(self._friend_number, self._file_number)
+
+# -----------------------------------------------------------------------------------------------------------------
+# Send file
+# -----------------------------------------------------------------------------------------------------------------
+
+
+class SendTransfer(FileTransfer):
+
+    def __init__(self, path, tox, friend_number, kind=TOX_FILE_KIND['DATA'], file_id=None):
+        if path is not None:
+            fl = open(path, 'rb')
+            size = getsize(path)
+        else:
+            fl = None
+            size = 0
+        super().__init__(path, tox, friend_number, size)
+        self._file = fl
+        self.state = FILE_TRANSFER_STATE['OUTGOING_NOT_STARTED']
+        self._file_number = tox.file_send(friend_number, kind, size, file_id,
+                                          bytes(basename(path), 'utf-8') if path else b'')
+        self._file_id = self.get_file_id()
+
+    def send_chunk(self, position, size):
+        """
+        Send chunk
+        :param position: start position in file
+        :param size: chunk max size
+        """
+        if self._creation_time is None:
+            self._creation_time = time()
+        if size:
+            self._file.seek(position)
+            data = self._file.read(size)
+            self._tox.file_send_chunk(self._friend_number, self._file_number, position, data)
+            self._done += size
+            self._signal()
+        else:
+            if self._file is not None:
+                self._file.close()
+            self.state = FILE_TRANSFER_STATE['FINISHED']
+            self._finished()
+
+
+class SendAvatar(SendTransfer):
+    """
+    Send avatar to friend. Doesn't need file transfer item
+    """
+
+    def __init__(self, path, tox, friend_number):
+        if path is None:
+            avatar_hash = None
+        else:
+            with open(path, 'rb') as fl:
+                avatar_hash = Tox.hash(fl.read())
+        super().__init__(path, tox, friend_number, TOX_FILE_KIND['AVATAR'], avatar_hash)
+
+
+class SendFromBuffer(FileTransfer):
+    """
+    Send inline image
+    """
+
+    def __init__(self, tox, friend_number, data, file_name):
+        super().__init__(None, tox, friend_number, len(data))
+        self.state = FILE_TRANSFER_STATE['OUTGOING_NOT_STARTED']
+        self._data = data
+        self._file_number = tox.file_send(friend_number, TOX_FILE_KIND['DATA'],
+                                          len(data), None, bytes(file_name, 'utf-8'))
+
+    def get_data(self):
+        return self._data
+
+    data = property(get_data)
+
+    def send_chunk(self, position, size):
+        if self._creation_time is None:
+            self._creation_time = time()
+        if size:
+            data = self._data[position:position + size]
+            self._tox.file_send_chunk(self._friend_number, self._file_number, position, data)
+            self._done += size
+        else:
+            self.state = FILE_TRANSFER_STATE['FINISHED']
+            self._finished()
+        self._signal()
+
+
+class SendFromFileBuffer(SendTransfer):
+
+    def __init__(self, *args):
+        super().__init__(*args)
+
+    def send_chunk(self, position, size):
+        super().send_chunk(position, size)
+        if not size:
+            chdir(dirname(self._path))
+            remove(self._path)
+
+# -----------------------------------------------------------------------------------------------------------------
+# Receive file
+# -----------------------------------------------------------------------------------------------------------------
+
+
+class ReceiveTransfer(FileTransfer):
+
+    def __init__(self, path, tox, friend_number, size, file_number, position=0):
+        super().__init__(path, tox, friend_number, size, file_number)
+        self._file = open(self._path, 'wb')
+        self._file_size = position
+        self._file.truncate(position)
+        self._missed = set()
+        self._file_id = self.get_file_id()
+        self._done = position
+
+    def cancel(self):
+        super().cancel()
+        remove(self._path)
+
+    def total_size(self):
+        self._missed.add(self._file_size)
+
+        return min(self._missed)
+
+    def write_chunk(self, position, data):
+        """
+        Incoming chunk
+        :param position: position in file to save data
+        :param data: raw data (string)
+        """
+        if self._creation_time is None:
+            self._creation_time = time()
+        if data is None:
+            self._file.close()
+            self.state = FILE_TRANSFER_STATE['FINISHED']
+            self._finished()
+        else:
+            data = bytearray(data)
+            if self._file_size < position:
+                self._file.seek(0, 2)
+                self._file.write(b'\0' * (position - self._file_size))
+                self._missed.add(self._file_size)
+            else:
+                self._missed.discard(position)
+            self._file.seek(position)
+            self._file.write(data)
+            l = len(data)
+            if position + l > self._file_size:
+                self._file_size = position + l
+            self._done += l
+        self._signal()
+
+
+class ReceiveToBuffer(FileTransfer):
+    """
+    Inline image - save in buffer not in file system
+    """
+
+    def __init__(self, tox, friend_number, size, file_number):
+        super().__init__(None, tox, friend_number, size, file_number)
+        self._data = bytes()
+        self._data_size = 0
+
+    def get_data(self):
+        return self._data
+
+    data = property(get_data)
+
+    def write_chunk(self, position, data):
+        if self._creation_time is None:
+            self._creation_time = time()
+        if data is None:
+            self.state = FILE_TRANSFER_STATE['FINISHED']
+            self._finished()
+        else:
+            data = bytes(data)
+            l = len(data)
+            if self._data_size < position:
+                self._data += (b'\0' * (position - self._data_size))
+            self._data = self._data[:position] + data + self._data[position + l:]
+            if position + l > self._data_size:
+                self._data_size = position + l
+            self._done += l
+        self._signal()
+
+
+class ReceiveAvatar(ReceiveTransfer):
+    """
+    Get friend's avatar. Doesn't need file transfer item
+    """
+    MAX_AVATAR_SIZE = 512 * 1024
+
+    def __init__(self, path, tox, friend_number, size, file_number):
+        full_path = path + '.tmp'
+        super().__init__(full_path, tox, friend_number, size, file_number)
+        if size > self.MAX_AVATAR_SIZE:
+            self.send_control(TOX_FILE_CONTROL['CANCEL'])
+            self._file.close()
+            remove(full_path)
+        elif not size:
+            self.send_control(TOX_FILE_CONTROL['CANCEL'])
+            self._file.close()
+            remove(full_path)
+        elif exists(path):
+            hash = self.get_file_id()
+            with open(path, 'rb') as fl:
+                data = fl.read()
+            existing_hash = Tox.hash(data)
+            if hash == existing_hash:
+                self.send_control(TOX_FILE_CONTROL['CANCEL'])
+                self._file.close()
+                remove(full_path)
+            else:
+                self.send_control(TOX_FILE_CONTROL['RESUME'])
+        else:
+            self.send_control(TOX_FILE_CONTROL['RESUME'])
+
+    def write_chunk(self, position, data):
+        if data is None:
+            avatar_path = self._path[:-4]
+            if exists(avatar_path):
+                chdir(dirname(avatar_path))
+                remove(avatar_path)
+            rename(self._path, avatar_path)
+        super().write_chunk(position, data)

toxygen/file_transfers/file_transfers_handler.py

@@ -0,0 +1,304 @@
+from messenger.messages import *
+from ui.contact_items import *
+import utils.util as util
+from common.tox_save import ToxSave
+
+
+class FileTransfersHandler(ToxSave):
+
+    def __init__(self, tox, settings, contact_provider, file_transfers_message_service, profile):
+        super().__init__(tox)
+        self._settings = settings
+        self._contact_provider = contact_provider
+        self._file_transfers_message_service = file_transfers_message_service
+        self._file_transfers = {}
+        # key = (friend number, file number), value - transfer instance
+        self._paused_file_transfers = dict(settings['paused_file_transfers'])
+        # key - file id, value: [path, friend number, is incoming, start position]
+        self._insert_inline_before = {}
+        # key = (friend number, file number), value - message id
+
+        profile.avatar_changed_event.add_callback(self._send_avatar_to_contacts)
+        
+    def stop(self):
+        self._settings['paused_file_transfers'] = self._paused_file_transfers if self._settings['resend_files'] else {}
+        self._settings.save()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # File transfers support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def incoming_file_transfer(self, friend_number, file_number, size, file_name):
+        """
+        New transfer
+        :param friend_number: number of friend who sent file
+        :param file_number: file number
+        :param size: file size in bytes
+        :param file_name: file name without path
+        """
+        friend = self._get_friend_by_number(friend_number)
+        auto = self._settings['allow_auto_accept'] and friend.tox_id in self._settings['auto_accept_from_friends']
+        inline = is_inline(file_name) and self._settings['allow_inline']
+        file_id = self._tox.file_get_file_id(friend_number, file_number)
+        accepted = True
+        if file_id in self._paused_file_transfers:
+            (path, ft_friend_number, is_incoming, start_position) = self._paused_file_transfers[file_id]
+            pos = start_position if os.path.exists(path) else 0
+            if pos >= size:
+                self._tox.file_control(friend_number, file_number, TOX_FILE_CONTROL['CANCEL'])
+                return
+            self._tox.file_seek(friend_number, file_number, pos)
+            self._file_transfers_message_service.add_incoming_transfer_message(
+                friend, accepted, size, file_name, file_number)
+            self.accept_transfer(path, friend_number, file_number, size, False, pos)
+        elif inline and size < 1024 * 1024:
+            self._file_transfers_message_service.add_incoming_transfer_message(
+                friend, accepted, size, file_name, file_number)
+            self.accept_transfer('', friend_number, file_number, size, True)
+        elif auto:
+            path = self._settings['auto_accept_path'] or util.curr_directory()
+            self._file_transfers_message_service.add_incoming_transfer_message(
+                friend, accepted, size, file_name, file_number)
+            self.accept_transfer(path + '/' + file_name, friend_number, file_number, size)
+        else:
+            accepted = False
+            self._file_transfers_message_service.add_incoming_transfer_message(
+                friend, accepted, size, file_name, file_number)
+
+    def cancel_transfer(self, friend_number, file_number, already_cancelled=False):
+        """
+        Stop transfer
+        :param friend_number: number of friend
+        :param file_number: file number
+        :param already_cancelled: was cancelled by friend
+        """
+        if (friend_number, file_number) in self._file_transfers:
+            tr = self._file_transfers[(friend_number, file_number)]
+            if not already_cancelled:
+                tr.cancel()
+            else:
+                tr.cancelled()
+            if (friend_number, file_number) in self._file_transfers:
+                del tr
+                del self._file_transfers[(friend_number, file_number)]
+        elif not already_cancelled:
+            self._tox.file_control(friend_number, file_number, TOX_FILE_CONTROL['CANCEL'])
+
+    def cancel_not_started_transfer(self, friend_number, message_id):
+        self._get_friend_by_number(friend_number).delete_one_unsent_file(message_id)
+
+    def pause_transfer(self, friend_number, file_number, by_friend=False):
+        """
+        Pause transfer with specified data
+        """
+        tr = self._file_transfers[(friend_number, file_number)]
+        tr.pause(by_friend)
+
+    def resume_transfer(self, friend_number, file_number, by_friend=False):
+        """
+        Resume transfer with specified data
+        """
+        tr = self._file_transfers[(friend_number, file_number)]
+        if by_friend:
+            tr.state = FILE_TRANSFER_STATE['RUNNING']
+        else:
+            tr.send_control(TOX_FILE_CONTROL['RESUME'])
+
+    def accept_transfer(self, path, friend_number, file_number, size, inline=False, from_position=0):
+        """
+        :param path: path for saving
+        :param friend_number: friend number
+        :param file_number: file number
+        :param size: file size
+        :param inline: is inline image
+        :param from_position: position for start
+        """
+        path = self._generate_valid_path(path, from_position)
+        friend = self._get_friend_by_number(friend_number)
+        if not inline:
+            rt = ReceiveTransfer(path, self._tox, friend_number, size, file_number, from_position)
+        else:
+            rt = ReceiveToBuffer(self._tox, friend_number, size, file_number)
+        rt.set_transfer_finished_handler(self.transfer_finished)
+        message = friend.get_message(lambda m: m.type == MESSAGE_TYPE['FILE_TRANSFER']
+                                               and m.state in (FILE_TRANSFER_STATE['INCOMING_NOT_STARTED'],
+                                                               FILE_TRANSFER_STATE['RUNNING'])
+                                               and m.file_number == file_number)
+        rt.set_state_changed_handler(message.transfer_updated)
+        self._file_transfers[(friend_number, file_number)] = rt
+        rt.send_control(TOX_FILE_CONTROL['RESUME'])
+        if inline:
+            self._insert_inline_before[(friend_number, file_number)] = message.message_id
+
+    def send_screenshot(self, data, friend_number):
+        """
+        Send screenshot
+        :param data: raw data - png format
+        :param friend_number: friend number
+        """
+        self.send_inline(data, 'toxygen_inline.png', friend_number)
+
+    def send_sticker(self, path, friend_number):
+        with open(path, 'rb') as fl:
+            data = fl.read()
+        self.send_inline(data, 'sticker.png', friend_number)
+
+    def send_inline(self, data, file_name, friend_number, is_resend=False):
+        friend = self._get_friend_by_number(friend_number)
+        if friend.status is None and not is_resend:
+            self._file_transfers_message_service.add_unsent_file_message(friend, file_name, data)
+            return
+        elif friend.status is None and is_resend:
+            raise RuntimeError()
+        st = SendFromBuffer(self._tox, friend.number, data, file_name)
+        self._send_file_add_set_handlers(st, friend, file_name, True)
+
+    def send_file(self, path, friend_number, is_resend=False, file_id=None):
+        """
+        Send file to current active friend
+        :param path: file path
+        :param friend_number: friend_number
+        :param is_resend: is 'offline' message
+        :param file_id: file id of transfer
+        """
+        friend = self._get_friend_by_number(friend_number)
+        if friend.status is None and not is_resend:
+            self._file_transfers_message_service.add_unsent_file_message(friend, path, None)
+            return
+        elif friend.status is None and is_resend:
+            print('Error in sending')
+            return
+        st = SendTransfer(path, self._tox, friend_number, TOX_FILE_KIND['DATA'], file_id)
+        file_name = os.path.basename(path)
+        self._send_file_add_set_handlers(st, friend, file_name)
+
+    def incoming_chunk(self, friend_number, file_number, position, data):
+        """
+        Incoming chunk
+        """
+        self._file_transfers[(friend_number, file_number)].write_chunk(position, data)
+
+    def outgoing_chunk(self, friend_number, file_number, position, size):
+        """
+        Outgoing chunk
+        """
+        self._file_transfers[(friend_number, file_number)].send_chunk(position, size)
+
+    def transfer_finished(self, friend_number, file_number):
+        transfer = self._file_transfers[(friend_number, file_number)]
+        t = type(transfer)
+        if t is ReceiveAvatar:
+            self._get_friend_by_number(friend_number).load_avatar()
+        elif t is ReceiveToBuffer or (t is SendFromBuffer and self._settings['allow_inline']):  # inline image
+            print('inline')
+            inline = InlineImageMessage(transfer.data)
+            message_id = self._insert_inline_before[(friend_number, file_number)]
+            del self._insert_inline_before[(friend_number, file_number)]
+            index = self._get_friend_by_number(friend_number).insert_inline(message_id, inline)
+            self._file_transfers_message_service.add_inline_message(transfer, index)
+        del self._file_transfers[(friend_number, file_number)]
+
+    def send_files(self, friend_number):
+        friend = self._get_friend_by_number(friend_number)
+        friend.remove_invalid_unsent_files()
+        files = friend.get_unsent_files()
+        try:
+            for fl in files:
+                data, path = fl.data, fl.path
+                if data is not None:
+                    self.send_inline(data, path, friend_number, True)
+                else:
+                    self.send_file(path, friend_number, True)
+            friend.clear_unsent_files()
+            for key in self._paused_file_transfers.keys():
+                (path, ft_friend_number, is_incoming, start_position) = self._paused_file_transfers[key]
+                if not os.path.exists(path):
+                    del self._paused_file_transfers[key]
+                elif ft_friend_number == friend_number and not is_incoming:
+                    self.send_file(path, friend_number, True, key)
+                    del self._paused_file_transfers[key]
+        except Exception as ex:
+            print('Exception in file sending: ' + str(ex))
+
+    def friend_exit(self, friend_number):
+        for friend_num, file_num in self._file_transfers.keys():
+            if friend_num != friend_number:
+                continue
+            ft = self._file_transfers[(friend_num, file_num)]
+            if type(ft) is SendTransfer:
+                self._paused_file_transfers[ft.file_id] = [ft.path, friend_num, False, -1]
+            elif type(ft) is ReceiveTransfer and ft.state != FILE_TRANSFER_STATE['INCOMING_NOT_STARTED']:
+                self._paused_file_transfers[ft.file_id] = [ft.path, friend_num, True, ft.total_size()]
+            self.cancel_transfer(friend_num, file_num, True)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Avatars support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def send_avatar(self, friend_number, avatar_path=None):
+        """
+        :param friend_number: number of friend who should get new avatar
+        :param avatar_path: path to avatar or None if reset
+        """
+        sa = SendAvatar(avatar_path, self._tox, friend_number)
+        self._file_transfers[(friend_number, sa.file_number)] = sa
+
+    def incoming_avatar(self, friend_number, file_number, size):
+        """
+        Friend changed avatar
+        :param friend_number: friend number
+        :param file_number: file number
+        :param size: size of avatar or 0 (default avatar)
+        """
+        friend = self._get_friend_by_number(friend_number)
+        ra = ReceiveAvatar(friend.get_contact_avatar_path(), self._tox, friend_number, size, file_number)
+        if ra.state != FILE_TRANSFER_STATE['CANCELLED']:
+            self._file_transfers[(friend_number, file_number)] = ra
+            ra.set_transfer_finished_handler(self.transfer_finished)
+        elif not size:
+            friend.reset_avatar(self._settings['identicons'])
+
+    def _send_avatar_to_contacts(self, _):
+        friends = self._get_all_friends()
+        for friend in filter(self._is_friend_online, friends):
+            self.send_avatar(friend.number)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _is_friend_online(self, friend_number):
+        friend = self._get_friend_by_number(friend_number)
+
+        return friend.status is not None
+
+    def _get_friend_by_number(self, friend_number):
+        return self._contact_provider.get_friend_by_number(friend_number)
+
+    def _get_all_friends(self):
+        return self._contact_provider.get_all_friends()
+
+    def _send_file_add_set_handlers(self, st, friend, file_name, inline=False):
+        st.set_transfer_finished_handler(self.transfer_finished)
+        file_number = st.get_file_number()
+        self._file_transfers[(friend.number, file_number)] = st
+        tm = self._file_transfers_message_service.add_outgoing_transfer_message(friend, st.size, file_name, file_number)
+        st.set_state_changed_handler(tm.transfer_updated)
+        if inline:
+            self._insert_inline_before[(friend.number, file_number)] = tm.message_id
+
+    @staticmethod
+    def _generate_valid_path(path, from_position):
+        path, file_name = os.path.split(path)
+        new_file_name, i = file_name, 1
+        if not from_position:
+            while os.path.isfile(join_path(path, new_file_name)):  # file with same name already exists
+                if '.' in file_name:  # has extension
+                    d = file_name.rindex('.')
+                else:  # no extension
+                    d = len(file_name)
+                new_file_name = file_name[:d] + ' ({})'.format(i) + file_name[d:]
+                i += 1
+        path = join_path(path, new_file_name)
+
+        return path

toxygen/file_transfers/file_transfers_messages_service.py

@@ -0,0 +1,78 @@
+from messenger.messenger import *
+import utils.util as util
+from file_transfers.file_transfers import *
+
+
+class FileTransfersMessagesService:
+
+    def __init__(self, contacts_manager, messages_items_factory, profile, main_screen):
+        self._contacts_manager = contacts_manager
+        self._messages_items_factory = messages_items_factory
+        self._profile = profile
+        self._messages = main_screen.messages
+
+    def add_incoming_transfer_message(self, friend, accepted, size, file_name, file_number):
+        author = MessageAuthor(friend.name, MESSAGE_AUTHOR['FRIEND'])
+        status = FILE_TRANSFER_STATE['RUNNING'] if accepted else FILE_TRANSFER_STATE['INCOMING_NOT_STARTED']
+        tm = TransferMessage(author, util.get_unix_time(), status, size, file_name, friend.number, file_number)
+
+        if self._is_friend_active(friend.number):
+            self._create_file_transfer_item(tm)
+            self._messages.scrollToBottom()
+        else:
+            friend.actions = True
+
+        friend.append_message(tm)
+
+        return tm
+
+    def add_outgoing_transfer_message(self, friend, size, file_name, file_number):
+        author = MessageAuthor(self._profile.name, MESSAGE_AUTHOR['ME'])
+        status = FILE_TRANSFER_STATE['OUTGOING_NOT_STARTED']
+        tm = TransferMessage(author, util.get_unix_time(), status, size, file_name, friend.number, file_number)
+
+        if self._is_friend_active(friend.number):
+            self._create_file_transfer_item(tm)
+            self._messages.scrollToBottom()
+
+        friend.append_message(tm)
+
+        return tm
+
+    def add_inline_message(self, transfer, index):
+        if not self._is_friend_active(transfer.friend_number):
+            return
+        count = self._messages.count()
+        if count + index + 1 >= 0:
+            self._create_inline_item(transfer.data, count + index + 1)
+
+    def add_unsent_file_message(self, friend, file_path, data):
+        author = MessageAuthor(self._profile.name, MESSAGE_AUTHOR['ME'])
+        size = os.path.getsize(file_path) if data is None else len(data)
+        tm = UnsentFileMessage(file_path, data, util.get_unix_time(), author, size, friend.number)
+        friend.append_message(tm)
+
+        if self._is_friend_active(friend.number):
+            self._create_unsent_file_item(tm)
+            self._messages.scrollToBottom()
+
+        return tm
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _is_friend_active(self, friend_number):
+        if not self._contacts_manager.is_active_a_friend():
+            return False
+
+        return friend_number == self._contacts_manager.get_active_number()
+
+    def _create_file_transfer_item(self, tm):
+        return self._messages_items_factory.create_file_transfer_item(tm)
+
+    def _create_inline_item(self, data, position):
+        return self._messages_items_factory.create_inline_item(data, False, position)
+
+    def _create_unsent_file_item(self, tm):
+        return self._messages_items_factory.create_unsent_file_item(tm)

toxygen/groups/group_ban.py

@@ -0,0 +1,23 @@
+
+
+class GroupBan:
+
+    def __init__(self, ban_id, ban_target, ban_time):
+        self._ban_id = ban_id
+        self._ban_target = ban_target
+        self._ban_time = ban_time
+
+    def get_ban_id(self):
+        return self._ban_id
+
+    ban_id = property(get_ban_id)
+
+    def get_ban_target(self):
+        return self._ban_target
+
+    ban_target = property(get_ban_target)
+
+    def get_ban_time(self):
+        return self._ban_time
+
+    ban_time = property(get_ban_time)

toxygen/groups/group_invite.py

@@ -0,0 +1,23 @@
+
+
+class GroupInvite:
+
+    def __init__(self, friend_public_key, chat_name, invite_data):
+        self._friend_public_key = friend_public_key
+        self._chat_name = chat_name
+        self._invite_data = invite_data[:]
+
+    def get_friend_public_key(self):
+        return self._friend_public_key
+
+    friend_public_key = property(get_friend_public_key)
+
+    def get_chat_name(self):
+        return self._chat_name
+
+    chat_name = property(get_chat_name)
+
+    def get_invite_data(self):
+        return self._invite_data[:]
+
+    invite_data = property(get_invite_data)

toxygen/groups/group_peer.py

@@ -0,0 +1,70 @@
+
+
+class GroupChatPeer:
+    """
+    Represents peer in group chat.
+    """
+
+    def __init__(self, peer_id, name, status, role, public_key, is_current_user=False, is_muted=False):
+        self._peer_id = peer_id
+        self._name = name
+        self._status = status
+        self._role = role
+        self._public_key = public_key
+        self._is_current_user = is_current_user
+        self._is_muted = is_muted
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Readonly properties
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_id(self):
+        return self._peer_id
+
+    id = property(get_id)
+
+    def get_public_key(self):
+        return self._public_key
+
+    public_key = property(get_public_key)
+
+    def get_is_current_user(self):
+        return self._is_current_user
+
+    is_current_user = property(get_is_current_user)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Read-write properties
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_name(self):
+        return self._name
+
+    def set_name(self, name):
+        self._name = name
+
+    name = property(get_name, set_name)
+
+    def get_status(self):
+        return self._status
+
+    def set_status(self, status):
+        self._status = status
+
+    status = property(get_status, set_status)
+
+    def get_role(self):
+        return self._role
+
+    def set_role(self, role):
+        self._role = role
+
+    role = property(get_role, set_role)
+
+    def get_is_muted(self):
+        return self._is_muted
+
+    def set_is_muted(self, is_muted):
+        self._is_muted = is_muted
+
+    is_muted = property(get_is_muted, set_is_muted)

toxygen/groups/groups_service.py

@@ -0,0 +1,242 @@
+import common.tox_save as tox_save
+import utils.ui as util_ui
+from groups.peers_list import PeersListGenerator
+from groups.group_invite import GroupInvite
+import wrapper.toxcore_enums_and_consts as constants
+
+
+class GroupsService(tox_save.ToxSave):
+
+    def __init__(self, tox, contacts_manager, contacts_provider, main_screen, widgets_factory_provider):
+        super().__init__(tox)
+        self._contacts_manager = contacts_manager
+        self._contacts_provider = contacts_provider
+        self._main_screen = main_screen
+        self._peers_list_widget = main_screen.peers_list
+        self._widgets_factory_provider = widgets_factory_provider
+        self._group_invites = []
+        self._screen = None
+
+    def set_tox(self, tox):
+        super().set_tox(tox)
+        for group in self._get_all_groups():
+            group.set_tox(tox)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Groups creation
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def create_new_gc(self, name, privacy_state, nick, status):
+        group_number = self._tox.group_new(privacy_state, name, nick, status)
+        if group_number == -1:
+            return
+
+        self._add_new_group_by_number(group_number)
+        group = self._get_group_by_number(group_number)
+        group.status = constants.TOX_USER_STATUS['NONE']
+        self._contacts_manager.update_filtration()
+
+    def join_gc_by_id(self, chat_id, password, nick, status):
+        group_number = self._tox.group_join(chat_id, password, nick, status)
+        self._add_new_group_by_number(group_number)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Groups reconnect and leaving
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def leave_group(self, group_number):
+        self._tox.group_leave(group_number)
+        self._contacts_manager.delete_group(group_number)
+
+    def disconnect_from_group(self, group_number):
+        self._tox.group_disconnect(group_number)
+        group = self._get_group_by_number(group_number)
+        group.status = None
+        self._clear_peers_list(group)
+
+    def reconnect_to_group(self, group_number):
+        self._tox.group_reconnect(group_number)
+        group = self._get_group_by_number(group_number)
+        group.status = constants.TOX_USER_STATUS['NONE']
+        self._clear_peers_list(group)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Group invites
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def invite_friend(self, friend_number, group_number):
+        self._tox.group_invite_friend(group_number, friend_number)
+
+    def process_group_invite(self, friend_number, group_name, invite_data):
+        friend = self._get_friend_by_number(friend_number)
+        invite = GroupInvite(friend.tox_id, group_name, invite_data)
+        self._group_invites.append(invite)
+        self._update_invites_button_state()
+
+    def accept_group_invite(self, invite, name, status, password):
+        pk = invite.friend_public_key
+        friend = self._get_friend_by_public_key(pk)
+        self._join_gc_via_invite(invite.invite_data, friend.number, name, status, password)
+        self._delete_group_invite(invite)
+        self._update_invites_button_state()
+
+    def decline_group_invite(self, invite):
+        self._delete_group_invite(invite)
+        self._main_screen.update_gc_invites_button_state()
+
+    def get_group_invites(self):
+        return self._group_invites[:]
+
+    group_invites = property(get_group_invites)
+
+    def get_group_invites_count(self):
+        return len(self._group_invites)
+
+    group_invites_count = property(get_group_invites_count)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Group info methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def update_group_info(self, group):
+        group.name = self._tox.group_get_name(group.number)
+        group.status_message = self._tox.group_get_topic(group.number)
+
+    def set_group_topic(self, group):
+        if not group.is_self_moderator_or_founder():
+            return
+        text = util_ui.tr('New topic for group "{}":'.format(group.name))
+        title = util_ui.tr('Set group topic')
+        topic, ok = util_ui.text_dialog(text, title, group.status_message)
+        if not ok or not topic:
+            return
+        self._tox.group_set_topic(group.number, topic)
+        group.status_message = topic
+
+    def show_group_management_screen(self, group):
+        widgets_factory = self._get_widgets_factory()
+        self._screen = widgets_factory.create_group_management_screen(group)
+        self._screen.show()
+
+    def show_group_settings_screen(self, group):
+        widgets_factory = self._get_widgets_factory()
+        self._screen = widgets_factory.create_group_settings_screen(group)
+        self._screen.show()
+
+    def set_group_password(self, group, password):
+        if group.password == password:
+            return
+        self._tox.group_founder_set_password(group.number, password)
+        group.password = password
+
+    def set_group_peers_limit(self, group, peers_limit):
+        if group.peers_limit == peers_limit:
+            return
+        self._tox.group_founder_set_peer_limit(group.number, peers_limit)
+        group.peers_limit = peers_limit
+
+    def set_group_privacy_state(self, group, privacy_state):
+        is_private = privacy_state == constants.TOX_GROUP_PRIVACY_STATE['PRIVATE']
+        if group.is_private == is_private:
+            return
+        self._tox.group_founder_set_privacy_state(group.number, privacy_state)
+        group.is_private = is_private
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Peers list
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def generate_peers_list(self):
+        if not self._contacts_manager.is_active_a_group():
+            return
+        group = self._contacts_manager.get_curr_contact()
+        PeersListGenerator().generate(group.peers, self, self._peers_list_widget, group.tox_id)
+
+    def peer_selected(self, chat_id, peer_id):
+        widgets_factory = self._get_widgets_factory()
+        group = self._get_group_by_public_key(chat_id)
+        self_peer = group.get_self_peer()
+        if self_peer.id != peer_id:
+            self._screen = widgets_factory.create_peer_screen_window(group, peer_id)
+        else:
+            self._screen = widgets_factory.create_self_peer_screen_window(group)
+        self._screen.show()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Peers actions
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def set_new_peer_role(self, group, peer, role):
+        self._tox.group_mod_set_role(group.number, peer.id, role)
+        peer.role = role
+        self.generate_peers_list()
+
+    def toggle_ignore_peer(self, group, peer, ignore):
+        self._tox.group_toggle_ignore(group.number, peer.id, ignore)
+        peer.is_muted = ignore
+
+    def set_self_info(self, group, name, status):
+        self._tox.group_self_set_name(group.number, name)
+        self._tox.group_self_set_status(group.number, status)
+        self_peer = group.get_self_peer()
+        self_peer.name = name
+        self_peer.status = status
+        self.generate_peers_list()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Bans support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def show_bans_list(self, group):
+        widgets_factory = self._get_widgets_factory()
+        self._screen = widgets_factory.create_groups_bans_screen(group)
+        self._screen.show()
+
+    def ban_peer(self, group, peer_id, ban_type):
+        self._tox.group_mod_ban_peer(group.number, peer_id, ban_type)
+
+    def kick_peer(self, group, peer_id):
+        self._tox.group_mod_remove_peer(group.number, peer_id)
+
+    def cancel_ban(self, group_number, ban_id):
+        self._tox.group_mod_remove_ban(group_number, ban_id)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _add_new_group_by_number(self, group_number):
+        self._contacts_manager.add_group(group_number)
+
+    def _get_group_by_number(self, group_number):
+        return self._contacts_provider.get_group_by_number(group_number)
+
+    def _get_group_by_public_key(self, public_key):
+        return self._contacts_provider.get_group_by_public_key(public_key)
+
+    def _get_all_groups(self):
+        return self._contacts_provider.get_all_groups()
+
+    def _get_friend_by_number(self, friend_number):
+        return self._contacts_provider.get_friend_by_number(friend_number)
+
+    def _get_friend_by_public_key(self, public_key):
+        return self._contacts_provider.get_friend_by_public_key(public_key)
+
+    def _clear_peers_list(self, group):
+        group.remove_all_peers_except_self()
+        self.generate_peers_list()
+
+    def _delete_group_invite(self, invite):
+        if invite in self._group_invites:
+            self._group_invites.remove(invite)
+
+    def _join_gc_via_invite(self, invite_data, friend_number, nick, status, password):
+        group_number = self._tox.group_invite_accept(invite_data, friend_number, nick, status, password)
+        self._add_new_group_by_number(group_number)
+
+    def _update_invites_button_state(self):
+        self._main_screen.update_gc_invites_button_state()
+
+    def _get_widgets_factory(self):
+        return self._widgets_factory_provider.get_item()

toxygen/groups/peers_list.py

@@ -0,0 +1,104 @@
+from ui.group_peers_list import PeerItem, PeerTypeItem
+from wrapper.toxcore_enums_and_consts import *
+from ui.widgets import *
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Builder
+# -----------------------------------------------------------------------------------------------------------------
+
+
+class PeerListBuilder:
+
+    def __init__(self):
+        self._peers = {}
+        self._titles = {}
+        self._index = 0
+        self._handler = None
+
+    def with_click_handler(self, handler):
+        self._handler = handler
+
+        return self
+
+    def with_title(self, title):
+        self._titles[self._index] = title
+        self._index += 1
+
+        return self
+
+    def with_peers(self, peers):
+        for peer in peers:
+            self._add_peer(peer)
+
+        return self
+
+    def build(self, list_widget):
+        list_widget.clear()
+
+        for i in range(self._index):
+            if i in self._peers:
+                peer = self._peers[i]
+                self._add_peer_item(peer, list_widget)
+            else:
+                title = self._titles[i]
+                self._add_peer_type_item(title, list_widget)
+
+    def _add_peer_item(self, peer, parent):
+        item = PeerItem(peer, self._handler, parent.width(), parent)
+        self._add_item(parent, item)
+
+    def _add_peer_type_item(self, text, parent):
+        item = PeerTypeItem(text, parent.width(), parent)
+        self._add_item(parent, item)
+
+    @staticmethod
+    def _add_item(parent, item):
+        elem = QtWidgets.QListWidgetItem(parent)
+        elem.setSizeHint(QtCore.QSize(parent.width(), item.height()))
+        parent.addItem(elem)
+        parent.setItemWidget(elem, item)
+
+    def _add_peer(self, peer):
+        self._peers[self._index] = peer
+        self._index += 1
+
+# -----------------------------------------------------------------------------------------------------------------
+# Generators
+# -----------------------------------------------------------------------------------------------------------------
+
+
+class PeersListGenerator:
+
+    @staticmethod
+    def generate(peers_list, groups_service, list_widget, chat_id):
+        admin_title = util_ui.tr('Administrator')
+        moderators_title = util_ui.tr('Moderators')
+        users_title = util_ui.tr('Users')
+        observers_title = util_ui.tr('Observers')
+
+        admins = list(filter(lambda p: p.role == TOX_GROUP_ROLE['FOUNDER'], peers_list))
+        moderators = list(filter(lambda p: p.role == TOX_GROUP_ROLE['MODERATOR'], peers_list))
+        users = list(filter(lambda p: p.role == TOX_GROUP_ROLE['USER'], peers_list))
+        observers = list(filter(lambda p: p.role == TOX_GROUP_ROLE['OBSERVER'], peers_list))
+
+        builder = (PeerListBuilder()
+                   .with_click_handler(lambda peer_id: groups_service.peer_selected(chat_id, peer_id)))
+        if len(admins):
+            (builder
+             .with_title(admin_title)
+             .with_peers(admins))
+        if len(moderators):
+            (builder
+             .with_title(moderators_title)
+             .with_peers(moderators))
+        if len(users):
+            (builder
+             .with_title(users_title)
+             .with_peers(users))
+        if len(observers):
+            (builder
+             .with_title(observers_title)
+             .with_peers(observers))
+
+        builder.build(list_widget)

toxygen/history/database.py

@@ -0,0 +1,201 @@
+from sqlite3 import connect
+import os.path
+import utils.util as util
+
+
+TIMEOUT = 11
+
+SAVE_MESSAGES = 500
+
+MESSAGE_AUTHOR = {
+    'ME': 0,
+    'FRIEND': 1,
+    'NOT_SENT': 2,
+    'GC_PEER': 3
+}
+
+CONTACT_TYPE = {
+    'FRIEND': 0,
+    'GC_PEER': 1,
+    'GC_PEER_PRIVATE': 2
+}
+
+
+class Database:
+
+    def __init__(self, path, toxes):
+        self._path, self._toxes = path, toxes
+        self._name = os.path.basename(path)
+        if os.path.exists(path):
+            try:
+                with open(path, 'rb') as fin:
+                    data = fin.read()
+                if toxes.is_data_encrypted(data):
+                    data = toxes.pass_decrypt(data)
+                    with open(path, 'wb') as fout:
+                        fout.write(data)
+            except Exception as ex:
+                util.log('Db reading error: ' + str(ex))
+                os.remove(path)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Public methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def save(self):
+        if self._toxes.has_password():
+            with open(self._path, 'rb') as fin:
+                data = fin.read()
+            data = self._toxes.pass_encrypt(bytes(data))
+            with open(self._path, 'wb') as fout:
+                fout.write(data)
+
+    def export(self, directory):
+        new_path = util.join_path(directory, self._name)
+        with open(self._path, 'rb') as fin:
+            data = fin.read()
+        if self._toxes.has_password():
+            data = self._toxes.pass_encrypt(data)
+        with open(new_path, 'wb') as fout:
+            fout.write(data)
+
+    def add_friend_to_db(self, tox_id):
+        db = self._connect()
+        try:
+            cursor = db.cursor()
+            cursor.execute('CREATE TABLE IF NOT EXISTS id' + tox_id + '('
+                           '    id INTEGER PRIMARY KEY,'
+                           '    author_name TEXT,'
+                           '    message TEXT,'
+                           '    author_type INTEGER,'
+                           '    unix_time REAL,'
+                           '    message_type INTEGER'
+                           ')')
+            db.commit()
+        except:
+            print('Database is locked!')
+            db.rollback()
+        finally:
+            db.close()
+
+    def delete_friend_from_db(self, tox_id):
+        db = self._connect()
+        try:
+            cursor = db.cursor()
+            cursor.execute('DROP TABLE id' + tox_id + ';')
+            db.commit()
+        except:
+            print('Database is locked!')
+            db.rollback()
+        finally:
+            db.close()
+
+    def save_messages_to_db(self, tox_id, messages_iter):
+        db = self._connect()
+        try:
+            cursor = db.cursor()
+            cursor.executemany('INSERT INTO id' + tox_id +
+                               '(message, author_name, author_type, unix_time, message_type) ' +
+                               'VALUES (?, ?, ?, ?, ?, ?);', messages_iter)
+            db.commit()
+        except:
+            print('Database is locked!')
+            db.rollback()
+        finally:
+            db.close()
+
+    def update_messages(self, tox_id, message_id):
+        db = self._connect()
+        try:
+            cursor = db.cursor()
+            cursor.execute('UPDATE id' + tox_id + ' SET author = 0 '
+                           'WHERE id = ' + str(message_id) + ' AND author = 2;')
+            db.commit()
+        except:
+            print('Database is locked!')
+            db.rollback()
+        finally:
+            db.close()
+
+    def delete_message(self, tox_id, unique_id):
+        db = self._connect()
+        try:
+            cursor = db.cursor()
+            cursor.execute('DELETE FROM id' + tox_id + ' WHERE id = ' + str(unique_id) + ';')
+            db.commit()
+        except:
+            print('Database is locked!')
+            db.rollback()
+        finally:
+            db.close()
+
+    def delete_messages(self, tox_id):
+        db = self._connect()
+        try:
+            cursor = db.cursor()
+            cursor.execute('DELETE FROM id' + tox_id + ';')
+            db.commit()
+        except:
+            print('Database is locked!')
+            db.rollback()
+        finally:
+            db.close()
+
+    def messages_getter(self, tox_id):
+        self.add_friend_to_db(tox_id)
+
+        return Database.MessageGetter(self._path, tox_id)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Messages loading
+    # -----------------------------------------------------------------------------------------------------------------
+
+    class MessageGetter:
+
+        def __init__(self, path, tox_id):
+            self._count = 0
+            self._path = path
+            self._tox_id = tox_id
+            self._db = self._cursor = None
+
+        def get_one(self):
+            return self.get(1)
+
+        def get_all(self):
+            self._connect()
+            data = self._cursor.fetchall()
+            self._disconnect()
+            self._count = len(data)
+            return data
+
+        def get(self, count):
+            self._connect()
+            self.skip()
+            data = self._cursor.fetchmany(count)
+            self._disconnect()
+            self._count += len(data)
+            return data
+
+        def skip(self):
+            if self._count:
+                self._cursor.fetchmany(self._count)
+
+        def delete_one(self):
+            if self._count:
+                self._count -= 1
+
+        def _connect(self):
+            self._db = connect(self._path, timeout=TIMEOUT)
+            self._cursor = self._db.cursor()
+            self._cursor.execute('SELECT message, author_type, author_name, unix_time, message_type, id FROM id' +
+                                 self._tox_id + ' ORDER BY unix_time DESC;')
+
+        def _disconnect(self):
+            self._db.close()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _connect(self):
+        return connect(self._path, timeout=TIMEOUT)

toxygen/history/history.py

@@ -0,0 +1,138 @@
+from history.history_logs_generators import *
+
+
+class History:
+
+    def __init__(self, contact_provider, db, settings, main_screen, messages_items_factory):
+        self._contact_provider = contact_provider
+        self._db = db
+        self._settings = settings
+        self._messages = main_screen.messages
+        self._messages_items_factory = messages_items_factory
+        self._is_loading = False
+        self._contacts_manager = None
+           
+    def __del__(self):
+        del self._db
+
+    def set_contacts_manager(self, contacts_manager):
+        self._contacts_manager = contacts_manager
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # History support
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def save_history(self):
+        """
+        Save history to db
+        """
+        if self._settings['save_db']:
+            for friend in self._contact_provider.get_all_friends():
+                self._db.add_friend_to_db(friend.tox_id)
+                if not self._settings['save_unsent_only']:
+                    messages = friend.get_corr_for_saving()
+                else:
+                    messages = friend.get_unsent_messages_for_saving()
+                    self._db.delete_messages(friend.tox_id)
+                messages = map(lambda m: (m.text, m.author.name, m.author.type, m.time, m.type), messages)
+                self._db.save_messages_to_db(friend.tox_id, messages)
+
+        self._db.save()
+
+    def clear_history(self, friend, save_unsent=False):
+        """
+        Clear chat history
+        """
+        friend.clear_corr(save_unsent)
+        self._db.delete_friend_from_db(friend.tox_id)
+
+    def export_history(self, contact, as_text=True):
+        extension = 'txt' if as_text else 'html'
+        file_name, _ = util_ui.save_file_dialog(util_ui.tr('Choose file name'), extension)
+
+        if not file_name:
+            return
+
+        if not file_name.endswith('.' + extension):
+            file_name += '.' + extension
+
+        history = self.generate_history(contact, as_text)
+        with open(file_name, 'wt') as fl:
+            fl.write(history)
+
+    def delete_message(self, message):
+        contact = self._contacts_manager.get_curr_contact()
+        if message.type in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION']):
+            if message.is_saved():
+                self._db.delete_message(contact.tox_id, message.id)
+        contact.delete_message(message.message_id)
+
+    def load_history(self, friend):
+        """
+        Tries to load next part of messages
+        """
+        if self._is_loading:
+            return
+        self._is_loading = True
+        friend.load_corr(False)
+        messages = friend.get_corr()
+        if not messages:
+            self._is_loading = False
+            return
+        messages.reverse()
+        messages = messages[self._messages.count():self._messages.count() + PAGE_SIZE]
+        for message in messages:
+            message_type = message.get_type()
+            if message_type in (MESSAGE_TYPE['TEXT'], MESSAGE_TYPE['ACTION']):  # text message
+                self._create_message_item(message)
+            elif message_type == MESSAGE_TYPE['FILE_TRANSFER']:  # file transfer
+                if message.state == FILE_TRANSFER_STATE['UNSENT']:
+                    self._create_unsent_file_item(message)
+                else:
+                    self._create_file_transfer_item(message)
+            elif message_type == MESSAGE_TYPE['INLINE']:  # inline image
+                self._create_inline_item(message)
+            else:  # info message
+                self._create_message_item(message)
+        self._is_loading = False
+
+    def get_message_getter(self, friend_public_key):
+        self._db.add_friend_to_db(friend_public_key)
+
+        return self._db.messages_getter(friend_public_key)
+
+    def delete_history(self, friend):
+        self._db.delete_friend_from_db(friend.tox_id)
+
+    def add_friend_to_db(self, tox_id):
+        self._db.add_friend_to_db(tox_id)
+
+    @staticmethod
+    def generate_history(contact, as_text=True, _range=None):
+        if _range is None:
+            contact.load_all_corr()
+            corr = contact.get_corr()
+        elif _range[1] + 1:
+            corr = contact.get_corr()[_range[0]:_range[1] + 1]
+        else:
+            corr = contact.get_corr()[_range[0]:]
+
+        generator = TextHistoryGenerator(corr, contact.name) if as_text else HtmlHistoryGenerator(corr, contact.name)
+
+        return generator.generate()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Items creation
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _create_message_item(self, message):
+        return self._messages_items_factory.create_message_item(message, False)
+
+    def _create_unsent_file_item(self, message):
+        return self._messages_items_factory.create_unsent_file_item(message, False)
+
+    def _create_file_transfer_item(self, message):
+        return self._messages_items_factory.create_file_transfer_item(message, False)
+
+    def _create_inline_item(self, message):
+        return self._messages_items_factory.create_inline_item(message, False)

toxygen/history/history_logs_generators.py

@@ -0,0 +1,48 @@
+from messenger.messages import *
+import utils.util as util
+
+
+class HistoryLogsGenerator:
+
+    def __init__(self, history, contact_name):
+        self._history = history
+        self._contact_name = contact_name
+
+    def generate(self):
+        return str()
+
+    @staticmethod
+    def _get_message_time(message):
+        return util.convert_time(message.time) if message.author.type != MESSAGE_AUTHOR['NOT_SENT'] else 'Unsent'
+
+
+class HtmlHistoryGenerator(HistoryLogsGenerator):
+
+    def __init__(self, history, contact_name):
+        super().__init__(history, contact_name)
+
+    def generate(self):
+        arr = []
+        for message in self._history:
+            if type(message) is TextMessage:
+                x = '[{}] <b>{}:</b> {}<br>'
+                arr.append(x.format(self._get_message_time(message), message.author.name, message.text))
+        s = '<br>'.join(arr)
+        html = '<html><head><meta charset="UTF-8"><title>{}</title></head><body>{}</body></html>'
+
+        return html.format(self._contact_name, s)
+
+
+class TextHistoryGenerator(HistoryLogsGenerator):
+
+    def __init__(self, history, contact_name):
+        super().__init__(history, contact_name)
+
+    def generate(self):
+        arr = [self._contact_name]
+        for message in self._history:
+            if type(message) is TextMessage:
+                x = '[{}] {}: {}\n'
+                arr.append(x.format(self._get_message_time(message), message.author.name, message.text))
+
+        return '\n'.join(arr)

toxygen/messenger/messages.py

@@ -0,0 +1,239 @@
+from history.database import MESSAGE_AUTHOR
+import os.path
+from ui.messages_widgets import *
+
+
+MESSAGE_TYPE = {
+    'TEXT': 0,
+    'ACTION': 1,
+    'FILE_TRANSFER': 2,
+    'INLINE': 3,
+    'INFO_MESSAGE': 4
+}
+
+PAGE_SIZE = 42
+
+
+class MessageAuthor:
+
+    def __init__(self, author_name, author_type):
+        self._name = author_name
+        self._type = author_type
+
+    def get_name(self):
+        return self._name
+
+    name = property(get_name)
+
+    def get_type(self):
+        return self._type
+
+    def set_type(self, value):
+        self._type = value
+
+    type = property(get_type, set_type)
+
+
+class Message:
+
+    MESSAGE_ID = 0
+
+    def __init__(self, message_type, author, time):
+        self._time = time
+        self._type = message_type
+        self._author = author
+        self._widget = None
+        self._message_id = self._get_id()
+
+    def get_type(self):
+        return self._type
+
+    type = property(get_type)
+
+    def get_author(self):
+        return self._author
+
+    author = property(get_author)
+
+    def get_time(self):
+        return self._time
+
+    time = property(get_time)
+
+    def get_message_id(self):
+        return self._message_id
+
+    message_id = property(get_message_id)
+
+    def get_widget(self, *args):
+        self._widget = self._create_widget(*args)
+
+        return self._widget
+
+    widget = property(get_widget)
+
+    def remove_widget(self):
+        self._widget = None
+
+    def mark_as_sent(self):
+        self._author.type = MESSAGE_AUTHOR['ME']
+        if self._widget is not None:
+            self._widget.mark_as_sent()
+
+    def _create_widget(self, *args):
+        pass
+
+    @staticmethod
+    def _get_id():
+        Message.MESSAGE_ID += 1
+
+        return int(Message.MESSAGE_ID)
+
+
+class TextMessage(Message):
+    """
+    Plain text or action message
+    """
+
+    def __init__(self, message, owner, time, message_type, message_id=0):
+        super().__init__(message_type, owner, time)
+        self._message = message
+        self._id = message_id
+
+    def get_text(self):
+        return self._message
+
+    text = property(get_text)
+
+    def get_id(self):
+        return self._id
+
+    id = property(get_id)
+
+    def is_saved(self):
+        return self._id > 0
+
+    def _create_widget(self, *args):
+        return MessageItem(self, *args)
+
+
+class OutgoingTextMessage(TextMessage):
+
+    def __init__(self, message, owner, time, message_type, tox_message_id=0):
+        super().__init__(message, owner, time, message_type)
+        self._tox_message_id = tox_message_id
+
+    def get_tox_message_id(self):
+        return self._tox_message_id
+
+    def set_tox_message_id(self, tox_message_id):
+        self._tox_message_id = tox_message_id
+
+    tox_message_id = property(get_tox_message_id, set_tox_message_id)
+
+
+class GroupChatMessage(TextMessage):
+
+    def __init__(self, id, message, owner, time, message_type, name):
+        super().__init__(id, message, owner, time, message_type)
+        self._user_name = name
+
+
+class TransferMessage(Message):
+    """
+    Message with info about file transfer
+    """
+
+    def __init__(self, author, time, state, size, file_name, friend_number, file_number):
+        super().__init__(MESSAGE_TYPE['FILE_TRANSFER'], author, time)
+        self._state = state
+        self._size = size
+        self._file_name = file_name
+        self._friend_number, self._file_number = friend_number, file_number
+
+    def is_active(self, file_number):
+        if self._file_number != file_number:
+            return False
+
+        return self._state not in (FILE_TRANSFER_STATE['FINISHED'], FILE_TRANSFER_STATE['CANCELLED'])
+
+    def get_friend_number(self):
+        return self._friend_number
+
+    friend_number = property(get_friend_number)
+
+    def get_file_number(self):
+        return self._file_number
+
+    file_number = property(get_file_number)
+
+    def get_state(self):
+        return self._state
+
+    def set_state(self, value):
+        self._state = value
+
+    state = property(get_state, set_state)
+
+    def get_size(self):
+        return self._size
+
+    size = property(get_size)
+
+    def get_file_name(self):
+        return self._file_name
+
+    file_name = property(get_file_name)
+
+    def transfer_updated(self, state, percentage, time):
+        self._state = state
+        if self._widget is not None:
+            self._widget.update_transfer_state(state, percentage, time)
+
+    def _create_widget(self, *args):
+        return FileTransferItem(self, *args)
+
+
+class UnsentFileMessage(TransferMessage):
+
+    def __init__(self, path, data, time, author, size, friend_number):
+        file_name = os.path.basename(path)
+        super().__init__(author, time, FILE_TRANSFER_STATE['UNSENT'], size, file_name, friend_number, -1)
+        self._data, self._path = data, path
+
+    def get_data(self):
+        return self._data
+
+    data = property(get_data)
+
+    def get_path(self):
+        return self._path
+
+    path = property(get_path)
+
+    def _create_widget(self, *args):
+        return UnsentFileItem(self, *args)
+
+
+class InlineImageMessage(Message):
+    """
+    Inline image
+    """
+
+    def __init__(self, data):
+        super().__init__(MESSAGE_TYPE['INLINE'], None, None)
+        self._data = data
+
+    def get_data(self):
+        return self._data
+
+    data = property(get_data)
+
+    def _create_widget(self, *args):
+        return InlineImageItem(self, *args)
+
+
+class InfoMessage(TextMessage):
+
+    def __init__(self, message, time):
+        super().__init__(message, None, time, MESSAGE_TYPE['INFO_MESSAGE'])

toxygen/messenger/messenger.py

@@ -0,0 +1,310 @@
+import common.tox_save as tox_save
+from messenger.messages import *
+
+
+class Messenger(tox_save.ToxSave):
+
+    def __init__(self, tox, plugin_loader, screen, contacts_manager, contacts_provider, items_factory, profile,
+                 calls_manager):
+        super().__init__(tox)
+        self._plugin_loader = plugin_loader
+        self._screen = screen
+        self._contacts_manager = contacts_manager
+        self._contacts_provider = contacts_provider
+        self._items_factory = items_factory
+        self._profile = profile
+        self._profile_name = profile.name
+
+        profile.name_changed_event.add_callback(self._on_profile_name_changed)
+        calls_manager.call_started_event.add_callback(self._on_call_started)
+        calls_manager.call_finished_event.add_callback(self._on_call_finished)
+
+    def get_last_message(self):
+        contact = self._contacts_manager.get_curr_contact()
+        if contact is None:
+            return str()
+
+        return contact.get_last_message_text()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Messaging - friends
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def new_message(self, friend_number, message_type, message):
+        """
+        Current user gets new message
+        :param friend_number: friend_num of friend who sent message
+        :param message_type: message type - plain text or action message (/me)
+        :param message: text of message
+        """
+        t = util.get_unix_time()
+        friend = self._get_friend_by_number(friend_number)
+        text_message = TextMessage(message, MessageAuthor(friend.name, MESSAGE_AUTHOR['FRIEND']), t, message_type)
+        self._add_message(text_message, friend)
+
+    def send_message(self):
+        text = self._screen.messageEdit.toPlainText()
+
+        plugin_command_prefix = '/plugin '
+        if text.startswith(plugin_command_prefix):
+            self._plugin_loader.command(text[len(plugin_command_prefix):])
+            self._screen.messageEdit.clear()
+            return
+
+        action_message_prefix = '/me '
+        if text.startswith(action_message_prefix):
+            message_type = TOX_MESSAGE_TYPE['ACTION']
+            text = text[len(action_message_prefix):]
+        else:
+            message_type = TOX_MESSAGE_TYPE['NORMAL']
+
+        if self._contacts_manager.is_active_a_friend():
+            self.send_message_to_friend(text, message_type)
+        elif self._contacts_manager.is_active_a_group():
+            self.send_message_to_group(text, message_type)
+        elif self._contacts_manager.is_active_a_group_chat_peer():
+            self.send_message_to_group_peer(text, message_type)
+
+    def send_message_to_friend(self, text, message_type, friend_number=None):
+        """
+        Send message
+        :param text: message text
+        :param friend_number: number of friend
+        """
+        if friend_number is None:
+            friend_number = self._contacts_manager.get_active_number()
+
+        if not text or friend_number < 0:
+            return
+
+        friend = self._get_friend_by_number(friend_number)
+        messages = self._split_message(text.encode('utf-8'))
+        t = util.get_unix_time()
+        for message in messages:
+            if friend.status is not None:
+                message_id = self._tox.friend_send_message(friend_number, message_type, message)
+            else:
+                message_id = 0
+            message_author = MessageAuthor(self._profile.name, MESSAGE_AUTHOR['NOT_SENT'])
+            message = OutgoingTextMessage(text, message_author, t, message_type, message_id)
+            friend.append_message(message)
+            if not self._contacts_manager.is_friend_active(friend_number):
+                return
+            self._create_message_item(message)
+            self._screen.messageEdit.clear()
+            self._screen.messages.scrollToBottom()
+
+    def send_messages(self, friend_number):
+        """
+        Send 'offline' messages to friend
+        """
+        friend = self._get_friend_by_number(friend_number)
+        friend.load_corr()
+        messages = friend.get_unsent_messages()
+        try:
+            for message in messages:
+                message_id = self._tox.friend_send_message(friend_number, message.type, message.text.encode('utf-8'))
+                message.tox_message_id = message_id
+        except Exception as ex:
+            util.log('Sending pending messages failed with ' + str(ex))
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Messaging - groups
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def send_message_to_group(self, text, message_type, group_number=None):
+        if group_number is None:
+            group_number = self._contacts_manager.get_active_number()
+
+        if not text or group_number < 0:
+            return
+
+        group = self._get_group_by_number(group_number)
+        messages = self._split_message(text.encode('utf-8'))
+        t = util.get_unix_time()
+        for message in messages:
+            self._tox.group_send_message(group_number, message_type, message)
+            message_author = MessageAuthor(group.get_self_name(), MESSAGE_AUTHOR['GC_PEER'])
+            message = OutgoingTextMessage(text, message_author, t, message_type)
+            group.append_message(message)
+            if not self._contacts_manager.is_group_active(group_number):
+                return
+            self._create_message_item(message)
+            self._screen.messageEdit.clear()
+            self._screen.messages.scrollToBottom()
+
+    def new_group_message(self, group_number, message_type, message, peer_id):
+        """
+        Current user gets new message
+        :param message_type: message type - plain text or action message (/me)
+        :param message: text of message
+        """
+        t = util.get_unix_time()
+        group = self._get_group_by_number(group_number)
+        peer = group.get_peer_by_id(peer_id)
+        text_message = TextMessage(message, MessageAuthor(peer.name, MESSAGE_AUTHOR['GC_PEER']), t, message_type)
+        self._add_message(text_message, group)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Messaging - group peers
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def send_message_to_group_peer(self, text, message_type, group_number=None, peer_id=None):
+        if group_number is None or peer_id is None:
+            group_peer_contact = self._contacts_manager.get_curr_contact()
+            peer_id = group_peer_contact.number
+            group = self._get_group_by_public_key(group_peer_contact.group_pk)
+            group_number = group.number
+
+        if not text or group_number < 0 or peer_id < 0:
+            return
+
+        group_peer_contact = self._contacts_manager.get_or_create_group_peer_contact(group_number, peer_id)
+        group = self._get_group_by_number(group_number)
+        messages = self._split_message(text.encode('utf-8'))
+        t = util.get_unix_time()
+        for message in messages:
+            self._tox.group_send_private_message(group_number, peer_id, message_type, message)
+            message_author = MessageAuthor(group.get_self_name(), MESSAGE_AUTHOR['GC_PEER'])
+            message = OutgoingTextMessage(text, message_author, t, message_type)
+            group_peer_contact.append_message(message)
+            if not self._contacts_manager.is_contact_active(group_peer_contact):
+                return
+            self._create_message_item(message)
+            self._screen.messageEdit.clear()
+            self._screen.messages.scrollToBottom()
+
+    def new_group_private_message(self, group_number, message_type, message, peer_id):
+        """
+        Current user gets new message
+        :param message: text of message
+        """
+        t = util.get_unix_time()
+        group = self._get_group_by_number(group_number)
+        peer = group.get_peer_by_id(peer_id)
+        text_message = TextMessage(message, MessageAuthor(peer.name, MESSAGE_AUTHOR['GC_PEER']),
+                                   t, message_type)
+        group_peer_contact = self._contacts_manager.get_or_create_group_peer_contact(group_number, peer_id)
+        self._add_message(text_message, group_peer_contact)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Message receipts
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def receipt(self, friend_number, message_id):
+        friend = self._get_friend_by_number(friend_number)
+        friend.mark_as_sent(message_id)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Typing notifications
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def send_typing(self, typing):
+        """
+        Send typing notification to a friend
+        """
+        if not self._contacts_manager.can_send_typing_notification():
+            return
+        contact = self._contacts_manager.get_curr_contact()
+        contact.typing_notification_handler.send(self._tox, typing)
+
+    def friend_typing(self, friend_number, typing):
+        """
+        Display incoming typing notification
+        """
+        if self._contacts_manager.is_friend_active(friend_number):
+            self._screen.typing.setVisible(typing)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Contact info updated
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def new_friend_name(self, friend, old_name, new_name):
+        if old_name == new_name or friend.has_alias():
+            return
+        message = util_ui.tr('User {} is now known as {}')
+        message = message.format(old_name, new_name)
+        if not self._contacts_manager.is_friend_active(friend.number):
+            friend.actions = True
+        self._add_info_message(friend.number, message)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    @staticmethod
+    def _split_message(message):
+        messages = []
+        while len(message) > TOX_MAX_MESSAGE_LENGTH:
+            size = TOX_MAX_MESSAGE_LENGTH * 4 // 5
+            last_part = message[size:TOX_MAX_MESSAGE_LENGTH]
+            if b' ' in last_part:
+                index = last_part.index(b' ')
+            elif b',' in last_part:
+                index = last_part.index(b',')
+            elif b'.' in last_part:
+                index = last_part.index(b'.')
+            else:
+                index = TOX_MAX_MESSAGE_LENGTH - size - 1
+            index += size + 1
+            messages.append(message[:index])
+            message = message[index:]
+        if message:
+            messages.append(message)
+
+        return messages
+
+    def _get_friend_by_number(self, friend_number):
+        return self._contacts_provider.get_friend_by_number(friend_number)
+
+    def _get_group_by_number(self, group_number):
+        return self._contacts_provider.get_group_by_number(group_number)
+
+    def _get_group_by_public_key(self, public_key):
+        return self._contacts_provider.get_group_by_public_key( public_key)
+
+    def _on_profile_name_changed(self, new_name):
+        if self._profile_name == new_name:
+            return
+        message = util_ui.tr('User {} is now known as {}')
+        message = message.format(self._profile_name, new_name)
+        for friend in self._contacts_provider.get_all_friends():
+            self._add_info_message(friend.number, message)
+        self._profile_name = new_name
+
+    def _on_call_started(self, friend_number, audio, video, is_outgoing):
+        if is_outgoing:
+            text = util_ui.tr("Outgoing video call") if video else util_ui.tr("Outgoing audio call")
+        else:
+            text = util_ui.tr("Incoming video call") if video else util_ui.tr("Incoming audio call")
+        self._add_info_message(friend_number, text)
+
+    def _on_call_finished(self, friend_number, is_declined):
+        text = util_ui.tr("Call declined") if is_declined else util_ui.tr("Call finished")
+        self._add_info_message(friend_number, text)
+
+    def _add_info_message(self, friend_number, text):
+        friend = self._get_friend_by_number(friend_number)
+        message = InfoMessage(text, util.get_unix_time())
+        friend.append_message(message)
+        if self._contacts_manager.is_friend_active(friend_number):
+            self._create_info_message_item(message)
+
+    def _create_info_message_item(self, message):
+        self._items_factory.create_message_item(message)
+        self._screen.messages.scrollToBottom()
+
+    def _add_message(self, text_message, contact):
+        if self._contacts_manager.is_contact_active(contact):  # add message to list
+            self._create_message_item(text_message)
+            self._screen.messages.scrollToBottom()
+            self._contacts_manager.get_curr_contact().append_message(text_message)
+        else:
+            contact.inc_messages()
+            contact.append_message(text_message)
+            if not contact.visibility:
+                self._contacts_manager.update_filtration()
+
+    def _create_message_item(self, text_message):
+        # pixmap = self._contacts_manager.get_curr_contact().get_pixmap()
+        self._items_factory.create_message_item(text_message)

toxygen/middleware/callbacks.py

@@ -0,0 +1,605 @@
+from PyQt5 import QtGui
+from wrapper.toxcore_enums_and_consts import *
+from wrapper.toxav_enums import *
+from wrapper.tox import bin_to_string
+import utils.ui as util_ui
+import utils.util as util
+import cv2
+import numpy as np
+from middleware.threads import invoke_in_main_thread, execute
+from notifications.tray import tray_notification
+from notifications.sound import *
+import threading
+
+# TODO: refactoring. Use contact provider instead of manager
+
+# -----------------------------------------------------------------------------------------------------------------
+# Callbacks - current user
+# -----------------------------------------------------------------------------------------------------------------
+
+
+def self_connection_status(tox, profile):
+    """
+    Current user changed connection status (offline, TCP, UDP)
+    """
+    def wrapped(tox_link, connection, user_data):
+        print('Connection status: ', str(connection))
+        status = tox.self_get_status() if connection != TOX_CONNECTION['NONE'] else None
+        invoke_in_main_thread(profile.set_status, status)
+
+    return wrapped
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Callbacks - friends
+# -----------------------------------------------------------------------------------------------------------------
+
+
+def friend_status(contacts_manager, file_transfer_handler, profile, settings):
+    def wrapped(tox, friend_number, new_status, user_data):
+        """
+        Check friend's status (none, busy, away)
+        """
+        print("Friend's #{} status changed!".format(friend_number))
+        friend = contacts_manager.get_friend_by_number(friend_number)
+        if friend.status is None and settings['sound_notifications'] and profile.status != TOX_USER_STATUS['BUSY']:
+            sound_notification(SOUND_NOTIFICATION['FRIEND_CONNECTION_STATUS'])
+        invoke_in_main_thread(friend.set_status, new_status)
+
+        def set_timer():
+            t = threading.Timer(5, lambda: file_transfer_handler.send_files(friend_number))
+            t.start()
+        invoke_in_main_thread(set_timer)
+        invoke_in_main_thread(contacts_manager.update_filtration)
+
+    return wrapped
+
+
+def friend_connection_status(contacts_manager, profile, settings, plugin_loader, file_transfer_handler,
+                             messenger, calls_manager):
+    def wrapped(tox, friend_number, new_status, user_data):
+        """
+        Check friend's connection status (offline, udp, tcp)
+        """
+        print("Friend #{} connection status: {}".format(friend_number, new_status))
+        friend = contacts_manager.get_friend_by_number(friend_number)
+        if new_status == TOX_CONNECTION['NONE']:
+            invoke_in_main_thread(friend.set_status, None)
+            invoke_in_main_thread(file_transfer_handler.friend_exit, friend_number)
+            invoke_in_main_thread(contacts_manager.update_filtration)
+            invoke_in_main_thread(messenger.friend_typing, friend_number, False)
+            invoke_in_main_thread(calls_manager.friend_exit, friend_number)
+            if settings['sound_notifications'] and profile.status != TOX_USER_STATUS['BUSY']:
+                sound_notification(SOUND_NOTIFICATION['FRIEND_CONNECTION_STATUS'])
+        elif friend.status is None:
+            invoke_in_main_thread(file_transfer_handler.send_avatar, friend_number)
+            invoke_in_main_thread(plugin_loader.friend_online, friend_number)
+
+    return wrapped
+
+
+def friend_name(contacts_provider, messenger):
+    def wrapped(tox, friend_number, name, size, user_data):
+        """
+        Friend changed his name
+        """
+        print('New name friend #' + str(friend_number))
+        friend = contacts_provider.get_friend_by_number(friend_number)
+        old_name = friend.name
+        new_name = str(name, 'utf-8')
+        invoke_in_main_thread(friend.set_name, new_name)
+        invoke_in_main_thread(messenger.new_friend_name, friend, old_name, new_name)
+
+    return wrapped
+
+
+def friend_status_message(contacts_manager, messenger):
+    def wrapped(tox, friend_number, status_message, size, user_data):
+        """
+        :return: function for callback friend_status_message. It updates friend's status message
+        and calls window repaint
+        """
+        friend = contacts_manager.get_friend_by_number(friend_number)
+        invoke_in_main_thread(friend.set_status_message, str(status_message, 'utf-8'))
+        print('User #{} has new status message'.format(friend_number))
+        invoke_in_main_thread(messenger.send_messages, friend_number)
+
+    return wrapped
+
+
+def friend_message(messenger, contacts_manager, profile, settings, window, tray):
+    def wrapped(tox, friend_number, message_type, message, size, user_data):
+        """
+        New message from friend
+        """
+        message = str(message, 'utf-8')
+        invoke_in_main_thread(messenger.new_message, friend_number, message_type, message)
+        if not window.isActiveWindow():
+            friend = contacts_manager.get_friend_by_number(friend_number)
+            if settings['notifications'] and profile.status != TOX_USER_STATUS['BUSY'] and not settings.locked:
+                invoke_in_main_thread(tray_notification, friend.name, message, tray, window)
+            if settings['sound_notifications'] and profile.status != TOX_USER_STATUS['BUSY']:
+                sound_notification(SOUND_NOTIFICATION['MESSAGE'])
+            icon = os.path.join(util.get_images_directory(), 'icon_new_messages.png')
+            invoke_in_main_thread(tray.setIcon, QtGui.QIcon(icon))
+
+    return wrapped
+
+
+def friend_request(contacts_manager):
+    def wrapped(tox, public_key, message, message_size, user_data):
+        """
+        Called when user get new friend request
+        """
+        print('Friend request')
+        key = ''.join(chr(x) for x in public_key[:TOX_PUBLIC_KEY_SIZE])
+        tox_id = bin_to_string(key, TOX_PUBLIC_KEY_SIZE)
+        invoke_in_main_thread(contacts_manager.process_friend_request, tox_id, str(message, 'utf-8'))
+
+    return wrapped
+
+
+def friend_typing(messenger):
+    def wrapped(tox, friend_number, typing, user_data):
+        invoke_in_main_thread(messenger.friend_typing, friend_number, typing)
+
+    return wrapped
+
+
+def friend_read_receipt(messenger):
+    def wrapped(tox, friend_number, message_id, user_data):
+        invoke_in_main_thread(messenger.receipt, friend_number, message_id)
+
+    return wrapped
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Callbacks - file transfers
+# -----------------------------------------------------------------------------------------------------------------
+
+
+def tox_file_recv(window, tray, profile, file_transfer_handler, contacts_manager, settings):
+    """
+    New incoming file
+    """
+    def wrapped(tox, friend_number, file_number, file_type, size, file_name, file_name_size, user_data):
+        if file_type == TOX_FILE_KIND['DATA']:
+            print('File')
+            try:
+                file_name = str(file_name[:file_name_size], 'utf-8')
+            except:
+                file_name = 'toxygen_file'
+            invoke_in_main_thread(file_transfer_handler.incoming_file_transfer,
+                                  friend_number,
+                                  file_number,
+                                  size,
+                                  file_name)
+            if not window.isActiveWindow():
+                friend = contacts_manager.get_friend_by_number(friend_number)
+                if settings['notifications'] and profile.status != TOX_USER_STATUS['BUSY'] and not settings.locked:
+                    file_from = util_ui.tr("File from")
+                    invoke_in_main_thread(tray_notification, file_from + ' ' + friend.name, file_name, tray, window)
+                if settings['sound_notifications'] and profile.status != TOX_USER_STATUS['BUSY']:
+                    sound_notification(SOUND_NOTIFICATION['FILE_TRANSFER'])
+                icon = util.join_path(util.get_images_directory(), 'icon_new_messages.png')
+                invoke_in_main_thread(tray.setIcon, QtGui.QIcon(icon))
+        else:  # avatar
+            print('Avatar')
+            invoke_in_main_thread(file_transfer_handler.incoming_avatar,
+                                  friend_number,
+                                  file_number,
+                                  size)
+    return wrapped
+
+
+def file_recv_chunk(file_transfer_handler):
+    """
+    Incoming chunk
+    """
+    def wrapped(tox, friend_number, file_number, position, chunk, length, user_data):
+        chunk = chunk[:length] if length else None
+        execute(file_transfer_handler.incoming_chunk, friend_number, file_number, position, chunk)
+
+    return wrapped
+
+
+def file_chunk_request(file_transfer_handler):
+    """
+    Outgoing chunk
+    """
+    def wrapped(tox, friend_number, file_number, position, size, user_data):
+        execute(file_transfer_handler.outgoing_chunk, friend_number, file_number, position, size)
+
+    return wrapped
+
+
+def file_recv_control(file_transfer_handler):
+    """
+    Friend cancelled, paused or resumed file transfer
+    """
+    def wrapped(tox, friend_number, file_number, file_control, user_data):
+        if file_control == TOX_FILE_CONTROL['CANCEL']:
+            file_transfer_handler.cancel_transfer(friend_number, file_number, True)
+        elif file_control == TOX_FILE_CONTROL['PAUSE']:
+            file_transfer_handler.pause_transfer(friend_number, file_number, True)
+        elif file_control == TOX_FILE_CONTROL['RESUME']:
+            file_transfer_handler.resume_transfer(friend_number, file_number, True)
+
+    return wrapped
+
+# -----------------------------------------------------------------------------------------------------------------
+# Callbacks - custom packets
+# -----------------------------------------------------------------------------------------------------------------
+
+
+def lossless_packet(plugin_loader):
+    def wrapped(tox, friend_number, data, length, user_data):
+        """
+        Incoming lossless packet
+        """
+        data = data[:length]
+        invoke_in_main_thread(plugin_loader.callback_lossless, friend_number, data)
+
+    return wrapped
+
+
+def lossy_packet(plugin_loader):
+    def wrapped(tox, friend_number, data, length, user_data):
+        """
+        Incoming lossy packet
+        """
+        data = data[:length]
+        invoke_in_main_thread(plugin_loader.callback_lossy, friend_number, data)
+
+    return wrapped
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Callbacks - audio
+# -----------------------------------------------------------------------------------------------------------------
+
+def call_state(calls_manager):
+    def wrapped(toxav, friend_number, mask, user_data):
+        """
+        New call state
+        """
+        print(friend_number, mask)
+        if mask == TOXAV_FRIEND_CALL_STATE['FINISHED'] or mask == TOXAV_FRIEND_CALL_STATE['ERROR']:
+            invoke_in_main_thread(calls_manager.stop_call, friend_number, True)
+        else:
+            calls_manager.toxav_call_state_cb(friend_number, mask)
+
+    return wrapped
+
+
+def call(calls_manager):
+    def wrapped(toxav, friend_number, audio, video, user_data):
+        """
+        Incoming call from friend
+        """
+        print(friend_number, audio, video)
+        invoke_in_main_thread(calls_manager.incoming_call, audio, video, friend_number)
+
+    return wrapped
+
+
+def callback_audio(calls_manager):
+    def wrapped(toxav, friend_number, samples, audio_samples_per_channel, audio_channels_count, rate, user_data):
+        """
+        New audio chunk
+        """
+        calls_manager.call.audio_chunk(
+            bytes(samples[:audio_samples_per_channel * 2 * audio_channels_count]),
+            audio_channels_count,
+            rate)
+
+    return wrapped
+
+# -----------------------------------------------------------------------------------------------------------------
+# Callbacks - video
+# -----------------------------------------------------------------------------------------------------------------
+
+
+def video_receive_frame(toxav, friend_number, width, height, y, u, v, ystride, ustride, vstride, user_data):
+    """
+    Creates yuv frame from y, u, v and shows it using OpenCV
+    For yuv => bgr we need this YUV420 frame:
+
+              width
+    -------------------------
+    |                       |
+    |          Y            |      height
+    |                       |
+    -------------------------
+    |           |           |
+    |  U even   |   U odd   |      height // 4
+    |           |           |
+    -------------------------
+    |           |           |
+    |  V even   |   V odd   |      height // 4
+    |           |           |
+    -------------------------
+
+     width // 2   width // 2
+
+    It can be created from initial y, u, v using slices
+    """
+    try:
+        y_size = abs(max(width, abs(ystride)))
+        u_size = abs(max(width // 2, abs(ustride)))
+        v_size = abs(max(width // 2, abs(vstride)))
+
+        y = np.asarray(y[:y_size * height], dtype=np.uint8).reshape(height, y_size)
+        u = np.asarray(u[:u_size * height // 2], dtype=np.uint8).reshape(height // 2, u_size)
+        v = np.asarray(v[:v_size * height // 2], dtype=np.uint8).reshape(height // 2, v_size)
+
+        width -= width % 4
+        height -= height % 4
+
+        frame = np.zeros((int(height * 1.5), width), dtype=np.uint8)
+
+        frame[:height, :] = y[:height, :width]
+        frame[height:height * 5 // 4, :width // 2] = u[:height // 2:2, :width // 2]
+        frame[height:height * 5 // 4, width // 2:] = u[1:height // 2:2, :width // 2]
+
+        frame[height * 5 // 4:, :width // 2] = v[:height // 2:2, :width // 2]
+        frame[height * 5 // 4:, width // 2:] = v[1:height // 2:2, :width // 2]
+
+        frame = cv2.cvtColor(frame, cv2.COLOR_YUV2BGR_I420)
+
+        invoke_in_main_thread(cv2.imshow, str(friend_number), frame)
+    except Exception as ex:
+        print(ex)
+
+# -----------------------------------------------------------------------------------------------------------------
+# Callbacks - groups
+# -----------------------------------------------------------------------------------------------------------------
+
+
+def group_message(window, tray, tox, messenger, settings, profile):
+    """
+    New message in group chat
+    """
+    def wrapped(tox_link, group_number, peer_id, message_type, message, length, user_data):
+        message = str(message[:length], 'utf-8')
+        invoke_in_main_thread(messenger.new_group_message, group_number, message_type, message, peer_id)
+        if window.isActiveWindow():
+            return
+        bl = settings['notify_all_gc'] or profile.name in message
+        name = tox.group_peer_get_name(group_number, peer_id)
+        if settings['notifications'] and profile.status != TOX_USER_STATUS['BUSY'] and (not settings.locked) and bl:
+            invoke_in_main_thread(tray_notification, name, message, tray, window)
+        if settings['sound_notifications'] and bl and profile.status != TOX_USER_STATUS['BUSY']:
+            sound_notification(SOUND_NOTIFICATION['MESSAGE'])
+        icon = util.join_path(util.get_images_directory(), 'icon_new_messages.png')
+        invoke_in_main_thread(tray.setIcon, QtGui.QIcon(icon))
+
+    return wrapped
+
+
+def group_private_message(window, tray, tox, messenger, settings, profile):
+    """
+    New private message in group chat
+    """
+    def wrapped(tox_link, group_number, peer_id, message_type, message, length, user_data):
+        message = str(message[:length], 'utf-8')
+        invoke_in_main_thread(messenger.new_group_private_message, group_number, message_type, message, peer_id)
+        if window.isActiveWindow():
+            return
+        bl = settings['notify_all_gc'] or profile.name in message
+        name = tox.group_peer_get_name(group_number, peer_id)
+        if settings['notifications'] and profile.status != TOX_USER_STATUS['BUSY'] and (not settings.locked) and bl:
+            invoke_in_main_thread(tray_notification, name, message, tray, window)
+        if settings['sound_notifications'] and bl and profile.status != TOX_USER_STATUS['BUSY']:
+            sound_notification(SOUND_NOTIFICATION['MESSAGE'])
+        icon = util.join_path(util.get_images_directory(), 'icon_new_messages.png')
+        invoke_in_main_thread(tray.setIcon, QtGui.QIcon(icon))
+
+    return wrapped
+
+
+def group_invite(window, settings, tray, profile, groups_service, contacts_provider):
+    def wrapped(tox, friend_number, invite_data, length, group_name, group_name_length, user_data):
+        group_name = str(bytes(group_name[:group_name_length]), 'utf-8')
+        invoke_in_main_thread(groups_service.process_group_invite,
+                              friend_number, group_name,
+                              bytes(invite_data[:length]))
+        if window.isActiveWindow():
+            return
+        if settings['notifications'] and profile.status != TOX_USER_STATUS['BUSY'] and not settings.locked:
+            friend = contacts_provider.get_friend_by_number(friend_number)
+            title = util_ui.tr('New invite to group chat')
+            text = util_ui.tr('{} invites you to group "{}"').format(friend.name, group_name)
+            invoke_in_main_thread(tray_notification, title, text, tray, window)
+        icon = util.join_path(util.get_images_directory(), 'icon_new_messages.png')
+        invoke_in_main_thread(tray.setIcon, QtGui.QIcon(icon))
+
+    return wrapped
+
+
+def group_self_join(contacts_provider, contacts_manager, groups_service):
+    def wrapped(tox, group_number, user_data):
+        group = contacts_provider.get_group_by_number(group_number)
+        invoke_in_main_thread(group.set_status, TOX_USER_STATUS['NONE'])
+        invoke_in_main_thread(groups_service.update_group_info, group)
+        invoke_in_main_thread(contacts_manager.update_filtration)
+
+    return wrapped
+
+
+def group_peer_join(contacts_provider, groups_service):
+    def wrapped(tox, group_number, peer_id, user_data):
+        group = contacts_provider.get_group_by_number(group_number)
+        group.add_peer(peer_id)
+        invoke_in_main_thread(groups_service.generate_peers_list)
+        invoke_in_main_thread(groups_service.update_group_info, group)
+
+    return wrapped
+
+
+def group_peer_exit(contacts_provider, groups_service, contacts_manager):
+    def wrapped(tox, group_number, peer_id, message, length, user_data):
+        group = contacts_provider.get_group_by_number(group_number)
+        group.remove_peer(peer_id)
+        invoke_in_main_thread(groups_service.generate_peers_list)
+
+    return wrapped
+
+
+def group_peer_name(contacts_provider, groups_service):
+    def wrapped(tox, group_number, peer_id, name, length, user_data):
+        group = contacts_provider.get_group_by_number(group_number)
+        peer = group.get_peer_by_id(peer_id)
+        peer.name = str(name[:length], 'utf-8')
+        invoke_in_main_thread(groups_service.generate_peers_list)
+
+    return wrapped
+
+
+def group_peer_status(contacts_provider, groups_service):
+    def wrapped(tox, group_number, peer_id, peer_status, user_data):
+        group = contacts_provider.get_group_by_number(group_number)
+        peer = group.get_peer_by_id(peer_id)
+        peer.status = peer_status
+        invoke_in_main_thread(groups_service.generate_peers_list)
+
+    return wrapped
+
+
+def group_topic(contacts_provider):
+    def wrapped(tox, group_number, peer_id, topic, length, user_data):
+        group = contacts_provider.get_group_by_number(group_number)
+        topic = str(topic[:length], 'utf-8')
+        invoke_in_main_thread(group.set_status_message, topic)
+
+    return wrapped
+
+
+def group_moderation(groups_service, contacts_provider, contacts_manager, messenger):
+
+    def update_peer_role(group, mod_peer_id, peer_id, new_role):
+        peer = group.get_peer_by_id(peer_id)
+        peer.role = new_role
+        # TODO: add info message
+
+    def remove_peer(group, mod_peer_id, peer_id, is_ban):
+        contacts_manager.remove_group_peer_by_id(group, peer_id)
+        group.remove_peer(peer_id)
+        # TODO: add info message
+
+    def wrapped(tox, group_number, mod_peer_id, peer_id, event_type, user_data):
+        group = contacts_provider.get_group_by_number(group_number)
+
+        if event_type == TOX_GROUP_MOD_EVENT['KICK']:
+            remove_peer(group, mod_peer_id, peer_id, False)
+        elif event_type == TOX_GROUP_MOD_EVENT['BAN']:
+            remove_peer(group, mod_peer_id, peer_id, True)
+        elif event_type == TOX_GROUP_MOD_EVENT['OBSERVER']:
+            update_peer_role(group, mod_peer_id, peer_id, TOX_GROUP_ROLE['OBSERVER'])
+        elif event_type == TOX_GROUP_MOD_EVENT['USER']:
+            update_peer_role(group, mod_peer_id, peer_id, TOX_GROUP_ROLE['USER'])
+        elif event_type == TOX_GROUP_MOD_EVENT['MODERATOR']:
+            update_peer_role(group, mod_peer_id, peer_id, TOX_GROUP_ROLE['MODERATOR'])
+
+        invoke_in_main_thread(groups_service.generate_peers_list)
+
+    return wrapped
+
+
+def group_password(contacts_provider):
+
+    def wrapped(tox_link, group_number, password, length, user_data):
+        password = str(password[:length], 'utf-8')
+        group = contacts_provider.get_group_by_number(group_number)
+        group.password = password
+
+    return wrapped
+
+
+def group_peer_limit(contacts_provider):
+
+    def wrapped(tox_link, group_number, peer_limit, user_data):
+        group = contacts_provider.get_group_by_number(group_number)
+        group.peer_limit = peer_limit
+
+    return wrapped
+
+
+def group_privacy_state(contacts_provider):
+
+    def wrapped(tox_link, group_number, privacy_state, user_data):
+        group = contacts_provider.get_group_by_number(group_number)
+        group.is_private = privacy_state == TOX_GROUP_PRIVACY_STATE['PRIVATE']
+
+    return wrapped
+
+# -----------------------------------------------------------------------------------------------------------------
+# Callbacks - initialization
+# -----------------------------------------------------------------------------------------------------------------
+
+
+def init_callbacks(tox, profile, settings, plugin_loader, contacts_manager,
+                   calls_manager, file_transfer_handler, main_window, tray, messenger, groups_service,
+                   contacts_provider):
+    """
+    Initialization of all callbacks.
+    :param tox: Tox instance
+    :param profile: Profile instance
+    :param settings: Settings instance
+    :param contacts_manager: ContactsManager instance
+    :param contacts_manager: ContactsManager instance
+    :param calls_manager: CallsManager instance
+    :param file_transfer_handler: FileTransferHandler instance
+    :param plugin_loader: PluginLoader instance
+    :param main_window: MainWindow instance
+    :param tray: tray (for notifications)
+    :param messenger: Messenger instance
+    :param groups_service: GroupsService instance
+    :param contacts_provider: ContactsProvider instance
+    """
+    # self callbacks
+    tox.callback_self_connection_status(self_connection_status(tox, profile))
+
+    # friend callbacks
+    tox.callback_friend_status(friend_status(contacts_manager, file_transfer_handler, profile, settings))
+    tox.callback_friend_message(friend_message(messenger, contacts_manager, profile, settings, main_window, tray))
+    tox.callback_friend_connection_status(friend_connection_status(contacts_manager, profile, settings, plugin_loader,
+                                                                   file_transfer_handler, messenger, calls_manager))
+    tox.callback_friend_name(friend_name(contacts_provider, messenger))
+    tox.callback_friend_status_message(friend_status_message(contacts_manager, messenger))
+    tox.callback_friend_request(friend_request(contacts_manager))
+    tox.callback_friend_typing(friend_typing(messenger))
+    tox.callback_friend_read_receipt(friend_read_receipt(messenger))
+
+    # file transfer
+    tox.callback_file_recv(tox_file_recv(main_window, tray, profile, file_transfer_handler,
+                                         contacts_manager, settings))
+    tox.callback_file_recv_chunk(file_recv_chunk(file_transfer_handler))
+    tox.callback_file_chunk_request(file_chunk_request(file_transfer_handler))
+    tox.callback_file_recv_control(file_recv_control(file_transfer_handler))
+
+    # av
+    toxav = tox.AV
+    toxav.callback_call_state(call_state(calls_manager), 0)
+    toxav.callback_call(call(calls_manager), 0)
+    toxav.callback_audio_receive_frame(callback_audio(calls_manager), 0)
+    toxav.callback_video_receive_frame(video_receive_frame, 0)
+
+    # custom packets
+    tox.callback_friend_lossless_packet(lossless_packet(plugin_loader))
+    tox.callback_friend_lossy_packet(lossy_packet(plugin_loader))
+
+    # gc callbacks
+    tox.callback_group_message(group_message(main_window, tray, tox, messenger, settings, profile), 0)
+    tox.callback_group_private_message(group_private_message(main_window, tray, tox, messenger, settings, profile), 0)
+    tox.callback_group_invite(group_invite(main_window, settings, tray, profile, groups_service, contacts_provider), 0)
+    tox.callback_group_self_join(group_self_join(contacts_provider, contacts_manager, groups_service), 0)
+    tox.callback_group_peer_join(group_peer_join(contacts_provider, groups_service), 0)
+    tox.callback_group_peer_exit(group_peer_exit(contacts_provider, groups_service, contacts_manager), 0)
+    tox.callback_group_peer_name(group_peer_name(contacts_provider, groups_service), 0)
+    tox.callback_group_peer_status(group_peer_status(contacts_provider, groups_service), 0)
+    tox.callback_group_topic(group_topic(contacts_provider), 0)
+    tox.callback_group_moderation(group_moderation(groups_service, contacts_provider, contacts_manager, messenger), 0)
+    tox.callback_group_password(group_password(contacts_provider), 0)
+    tox.callback_group_peer_limit(group_peer_limit(contacts_provider), 0)
+    tox.callback_group_privacy_state(group_privacy_state(contacts_provider), 0)

toxygen/middleware/threads.py

@@ -0,0 +1,172 @@
+from bootstrap.bootstrap import *
+import threading
+import queue
+from utils import util
+import time
+from PyQt5 import QtCore
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Base threads
+# -----------------------------------------------------------------------------------------------------------------
+
+class BaseThread(threading.Thread):
+
+    def __init__(self):
+        super().__init__()
+        self._stop_thread = False
+
+    def stop_thread(self):
+        self._stop_thread = True
+        self.join()
+
+
+class BaseQThread(QtCore.QThread):
+
+    def __init__(self):
+        super().__init__()
+        self._stop_thread = False
+
+    def stop_thread(self):
+        self._stop_thread = True
+        self.wait()
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Toxcore threads
+# -----------------------------------------------------------------------------------------------------------------
+
+class InitThread(BaseThread):
+
+    def __init__(self, tox, plugin_loader, settings, is_first_start):
+        super().__init__()
+        self._tox, self._plugin_loader, self._settings = tox, plugin_loader, settings
+        self._is_first_start = is_first_start
+
+    def run(self):
+        if self._is_first_start:
+            # download list of nodes if needed
+            download_nodes_list(self._settings)
+            # start plugins
+            self._plugin_loader.load()
+
+        # bootstrap
+        try:
+            for data in generate_nodes():
+                if self._stop_thread:
+                    return
+                self._tox.bootstrap(*data)
+                self._tox.add_tcp_relay(*data)
+        except:
+            pass
+
+        for _ in range(10):
+            if self._stop_thread:
+                return
+            time.sleep(1)
+
+        while not self._tox.self_get_connection_status():
+            try:
+                for data in generate_nodes(None):
+                    if self._stop_thread:
+                        return
+                    self._tox.bootstrap(*data)
+                    self._tox.add_tcp_relay(*data)
+            except:
+                pass
+            finally:
+                time.sleep(5)
+
+
+class ToxIterateThread(BaseQThread):
+
+    def __init__(self, tox):
+        super().__init__()
+        self._tox = tox
+
+    def run(self):
+        while not self._stop_thread:
+            self._tox.iterate()
+            time.sleep(self._tox.iteration_interval() / 1000)
+
+
+class ToxAVIterateThread(BaseQThread):
+
+    def __init__(self, toxav):
+        super().__init__()
+        self._toxav = toxav
+
+    def run(self):
+        while not self._stop_thread:
+            self._toxav.iterate()
+            time.sleep(self._toxav.iteration_interval() / 1000)
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# File transfers thread
+# -----------------------------------------------------------------------------------------------------------------
+
+class FileTransfersThread(BaseQThread):
+
+    def __init__(self):
+        super().__init__()
+        self._queue = queue.Queue()
+        self._timeout = 0.01
+
+    def execute(self, func, *args, **kwargs):
+        self._queue.put((func, args, kwargs))
+
+    def run(self):
+        while not self._stop_thread:
+            try:
+                func, args, kwargs = self._queue.get(timeout=self._timeout)
+                func(*args, **kwargs)
+            except queue.Empty:
+                pass
+            except queue.Full:
+                util.log('Queue is full in _thread')
+            except Exception as ex:
+                util.log('Exception in _thread: ' + str(ex))
+
+
+_thread = FileTransfersThread()
+
+
+def start_file_transfer_thread():
+    _thread.start()
+
+
+def stop_file_transfer_thread():
+    _thread.stop_thread()
+
+
+def execute(func, *args, **kwargs):
+    _thread.execute(func, *args, **kwargs)
+
+
+# -----------------------------------------------------------------------------------------------------------------
+# Invoking in main thread
+# -----------------------------------------------------------------------------------------------------------------
+
+class InvokeEvent(QtCore.QEvent):
+    EVENT_TYPE = QtCore.QEvent.Type(QtCore.QEvent.registerEventType())
+
+    def __init__(self, fn, *args, **kwargs):
+        QtCore.QEvent.__init__(self, InvokeEvent.EVENT_TYPE)
+        self.fn = fn
+        self.args = args
+        self.kwargs = kwargs
+
+
+class Invoker(QtCore.QObject):
+
+    def event(self, event):
+        event.fn(*event.args, **event.kwargs)
+        return True
+
+
+_invoker = Invoker()
+
+
+def invoke_in_main_thread(fn, *args, **kwargs):
+    QtCore.QCoreApplication.postEvent(_invoker, InvokeEvent(fn, *args, **kwargs))

toxygen/middleware/tox_factory.py

@@ -0,0 +1,34 @@
+import user_data.settings
+import wrapper.tox
+import wrapper.toxcore_enums_and_consts as enums
+import ctypes
+
+
+def tox_factory(data=None, settings=None):
+    """
+    :param data: user data from .tox file. None = no saved data, create new profile
+    :param settings: current profile settings. None = default settings will be used
+    :return: new tox instance
+    """
+    if settings is None:
+        settings = user_data.settings.Settings.get_default_settings()
+
+    tox_options = wrapper.tox.Tox.options_new()
+    tox_options.contents.udp_enabled = settings['udp_enabled']
+    tox_options.contents.proxy_type = settings['proxy_type']
+    tox_options.contents.proxy_host = bytes(settings['proxy_host'], 'UTF-8')
+    tox_options.contents.proxy_port = settings['proxy_port']
+    tox_options.contents.start_port = settings['start_port']
+    tox_options.contents.end_port = settings['end_port']
+    tox_options.contents.tcp_port = settings['tcp_port']
+    tox_options.contents.local_discovery_enabled = settings['lan_discovery']
+    if data:  # load existing profile
+        tox_options.contents.savedata_type = enums.TOX_SAVEDATA_TYPE['TOX_SAVE']
+        tox_options.contents.savedata_data = ctypes.c_char_p(data)
+        tox_options.contents.savedata_length = len(data)
+    else:  # create new profile
+        tox_options.contents.savedata_type = enums.TOX_SAVEDATA_TYPE['NONE']
+        tox_options.contents.savedata_data = None
+        tox_options.contents.savedata_length = 0
+
+    return wrapper.tox.Tox(tox_options)

toxygen/network/tox_dns.py

@@ -0,0 +1,65 @@
+import json
+import urllib.request
+import utils.util as util
+from PyQt5 import QtNetwork, QtCore
+
+
+class ToxDns:
+
+    def __init__(self, settings):
+        self._settings = settings
+
+    @staticmethod
+    def _send_request(url, data):
+        req = urllib.request.Request(url)
+        req.add_header('Content-Type', 'application/json')
+        response = urllib.request.urlopen(req, bytes(json.dumps(data), 'utf-8'))
+        res = json.loads(str(response.read(), 'utf-8'))
+        if not res['c']:
+            return res['tox_id']
+        else:
+            raise LookupError()
+
+    def lookup(self, email):
+        """
+        TOX DNS 4
+        :param email: data like 'groupbot@toxme.io'
+        :return: tox id on success else None
+        """
+        site = email.split('@')[1]
+        data = {"action": 3, "name": "{}".format(email)}
+        urls = ('https://{}/api'.format(site), 'http://{}/api'.format(site))
+        if not self._settings['proxy_type']:  # no proxy
+            for url in urls:
+                try:
+                    return self._send_request(url, data)
+                except Exception as ex:
+                    util.log('TOX DNS ERROR: ' + str(ex))
+        else:  # proxy
+            netman = QtNetwork.QNetworkAccessManager()
+            proxy = QtNetwork.QNetworkProxy()
+            if self._settings['proxy_type'] == 2:
+                proxy.setType(QtNetwork.QNetworkProxy.Socks5Proxy)
+            else:
+                proxy.setType(QtNetwork.QNetworkProxy.HttpProxy)
+            proxy.setHostName(self._settings['proxy_host'])
+            proxy.setPort(self._settings['proxy_port'])
+            netman.setProxy(proxy)
+            for url in urls:
+                try:
+                    request = QtNetwork.QNetworkRequest()
+                    request.setUrl(QtCore.QUrl(url))
+                    request.setHeader(QtNetwork.QNetworkRequest.ContentTypeHeader, "application/json")
+                    reply = netman.post(request, bytes(json.dumps(data), 'utf-8'))
+
+                    while not reply.isFinished():
+                        QtCore.QThread.msleep(1)
+                        QtCore.QCoreApplication.processEvents()
+                    data = bytes(reply.readAll().data())
+                    result = json.loads(str(data, 'utf-8'))
+                    if not result['c']:
+                        return result['tox_id']
+                except Exception as ex:
+                    util.log('TOX DNS ERROR: ' + str(ex))
+
+        return None  # error

toxygen/notifications/sound.py

@@ -0,0 +1,54 @@
+import utils.util
+import wave
+import pyaudio
+import os.path
+
+
+SOUND_NOTIFICATION = {
+    'MESSAGE': 0,
+    'FRIEND_CONNECTION_STATUS': 1,
+    'FILE_TRANSFER': 2
+}
+
+
+class AudioFile:
+    chunk = 1024
+
+    def __init__(self, fl):
+        self.wf = wave.open(fl, 'rb')
+        self.p = pyaudio.PyAudio()
+        self.stream = self.p.open(
+            format=self.p.get_format_from_width(self.wf.getsampwidth()),
+            channels=self.wf.getnchannels(),
+            rate=self.wf.getframerate(),
+            output=True)
+
+    def play(self):
+        data = self.wf.readframes(self.chunk)
+        while data:
+            self.stream.write(data)
+            data = self.wf.readframes(self.chunk)
+
+    def close(self):
+        self.stream.close()
+        self.p.terminate()
+
+
+def sound_notification(t):
+    """
+    Plays sound notification
+    :param t: type of notification
+    """
+    if t == SOUND_NOTIFICATION['MESSAGE']:
+        f = get_file_path('message.wav')
+    elif t == SOUND_NOTIFICATION['FILE_TRANSFER']:
+        f = get_file_path('file.wav')
+    else:
+        f = get_file_path('contact.wav')
+    a = AudioFile(f)
+    a.play()
+    a.close()
+
+
+def get_file_path(file_name):
+    return os.path.join(utils.util.get_sounds_directory(), file_name)

toxygen/notifications/tray.py

@@ -0,0 +1,22 @@
+from PyQt5 import QtCore, QtWidgets
+
+
+def tray_notification(title, text, tray, window):
+    """
+    Show tray notification and activate window icon
+    NOTE: different behaviour on different OS
+    :param title: Name of user who sent message or file
+    :param text: text of message or file info
+    :param tray: ref to tray icon
+    :param window: main window
+    """
+    if QtWidgets.QSystemTrayIcon.isSystemTrayAvailable():
+        if len(text) > 30:
+            text = text[:27] + '...'
+        tray.showMessage(title, text, QtWidgets.QSystemTrayIcon.NoIcon, 3000)
+        QtWidgets.QApplication.alert(window, 0)
+
+        def message_clicked():
+            window.setWindowState(window.windowState() & ~QtCore.Qt.WindowMinimized | QtCore.Qt.WindowActive)
+            window.activateWindow()
+        tray.messageClicked.connect(message_clicked)

toxygen/plugin_support/plugin_support.py

@@ -0,0 +1,194 @@
+import utils.util as util
+import os
+import importlib
+import inspect
+import plugins.plugin_super_class as pl
+import sys
+
+
+class Plugin:
+
+    def __init__(self, plugin, is_active):
+        self._instance = plugin
+        self._is_active = is_active
+
+    def get_instance(self):
+        return self._instance
+
+    instance = property(get_instance)
+
+    def get_is_active(self):
+        return self._is_active
+
+    def set_is_active(self, is_active):
+        self._is_active = is_active
+
+    is_active = property(get_is_active, set_is_active)
+
+
+class PluginLoader:
+
+    def __init__(self, settings, app):
+        self._settings = settings
+        self._app = app
+        self._plugins = {}  # dict. key - plugin unique short name, value - Plugin instance
+
+    def set_tox(self, tox):
+        """
+        New tox instance
+        """
+        for plugin in self._plugins.values():
+            plugin.instance.set_tox(tox)
+
+    def load(self):
+        """
+        Load all plugins in plugins folder
+        """
+        path = util.get_plugins_directory()
+        if not os.path.exists(path):
+            util.log('Plugin dir not found')
+            return
+        else:
+            sys.path.append(path)
+        files = [f for f in os.listdir(path) if os.path.isfile(os.path.join(path, f))]
+        for fl in files:
+            if fl in ('plugin_super_class.py', '__init__.py') or not fl.endswith('.py'):
+                continue
+            name = fl[:-3]  # module name without .py
+            try:
+                module = importlib.import_module(name)  # import plugin
+            except ImportError:
+                util.log('Import error in module ' + name)
+                continue
+            except Exception as ex:
+                util.log('Exception in module ' + name + ' Exception: ' + str(ex))
+                continue
+            for elem in dir(module):
+                obj = getattr(module, elem)
+                # looking for plugin class in module
+                if not inspect.isclass(obj) or not hasattr(obj, 'is_plugin') or not obj.is_plugin:
+                    continue
+                print('Plugin', elem)
+                try:  # create instance of plugin class
+                    instance = obj(self._app)
+                    is_active = instance.get_short_name() in self._settings['plugins']
+                    if is_active:
+                        instance.start()
+                except Exception as ex:
+                    util.log('Exception in module ' + name + ' Exception: ' + str(ex))
+                    continue
+                self._plugins[instance.get_short_name()] = Plugin(instance, is_active)
+                break
+
+    def callback_lossless(self, friend_number, data):
+        """
+        New incoming custom lossless packet (callback)
+        """
+        l = data[0] - pl.LOSSLESS_FIRST_BYTE
+        name = ''.join(chr(x) for x in data[1:l + 1])
+        if name in self._plugins and self._plugins[name].is_active:
+            self._plugins[name].instance.lossless_packet(''.join(chr(x) for x in data[l + 1:]), friend_number)
+
+    def callback_lossy(self, friend_number, data):
+        """
+        New incoming custom lossy packet (callback)
+        """
+        l = data[0] - pl.LOSSY_FIRST_BYTE
+        name = ''.join(chr(x) for x in data[1:l + 1])
+        if name in self._plugins and self._plugins[name].is_active:
+            self._plugins[name].instance.lossy_packet(''.join(chr(x) for x in data[l + 1:]), friend_number)
+
+    def friend_online(self, friend_number):
+        """
+        Friend with specified number is online
+        """
+        for plugin in self._plugins.values():
+            if plugin.is_active:
+                plugin.instance.friend_connected(friend_number)
+
+    def get_plugins_list(self):
+        """
+        Returns list of all plugins
+        """
+        result = []
+        for plugin in self._plugins.values():
+            try:
+                result.append([plugin.instance.get_name(),  # plugin full name
+                               plugin.is_active,  # is enabled
+                               plugin.instance.get_description(),  # plugin description
+                               plugin.instance.get_short_name()])  # key - short unique name
+            except:
+                continue
+
+        return result
+
+    def plugin_window(self, key):
+        """
+        Return window or None for specified plugin
+        """
+        return self._plugins[key].instance.get_window()
+
+    def toggle_plugin(self, key):
+        """
+        Enable/disable plugin
+        :param key: plugin short name
+        """
+        plugin = self._plugins[key]
+        if plugin.is_active:
+            plugin.instance.stop()
+        else:
+            plugin.instance.start()
+        plugin.is_active = not plugin.is_active
+        if plugin.is_active:
+            self._settings['plugins'].append(key)
+        else:
+            self._settings['plugins'].remove(key)
+        self._settings.save()
+
+    def command(self, text):
+        """
+        New command for plugin
+        """
+        text = text.strip()
+        name = text.split()[0]
+        if name in self._plugins and self._plugins[name].is_active:
+            self._plugins[name].instance.command(text[len(name) + 1:])
+
+    def get_menu(self, num):
+        """
+        Return list of items for menu
+        """
+        result = []
+        for plugin in self._plugins.values():
+            if not plugin.is_active:
+                continue
+            try:
+                result.extend(plugin.instance.get_menu(num))
+            except:
+                continue
+        return result
+
+    def get_message_menu(self, menu, selected_text):
+        result = []
+        for plugin in self._plugins.values():
+            if not plugin.is_active:
+                continue
+            try:
+                result.extend(plugin.instance.get_message_menu(menu, selected_text))
+            except:
+                pass
+        return result
+
+    def stop(self):
+        """
+        App is closing, stop all plugins
+        """
+        for key in list(self._plugins.keys()):
+            if self._plugins[key].is_active:
+                self._plugins[key].instance.close()
+            del self._plugins[key]
+
+    def reload(self):
+        print('Reloading plugins')
+        self.stop()
+        self.load()

toxygen/plugins/plugin_super_class.py

@@ -1,5 +1,7 @@
 import os
 from PyQt5 import QtCore, QtWidgets
+import utils.ui as util_ui
+import common.tox_save as tox_save
 
 
 MAX_SHORT_NAME_LENGTH = 5
@@ -26,25 +28,22 @@ def log(name, data):
         fl.write(str(data) + '\n')
 
 
-class PluginSuperClass:
+class PluginSuperClass(tox_save.ToxSave):
     """
     Superclass for all plugins. Plugin is Python3 module with at least one class derived from PluginSuperClass.
     """
     is_plugin = True
 
-    def __init__(self, name, short_name, tox=None, profile=None, settings=None, encrypt_save=None):
+    def __init__(self, name, short_name, app):
         """
-        Constructor. In plugin __init__ should take only 4 last arguments
+        Constructor. In plugin __init__ should take only 1 last argument
         :param name: plugin full name
         :param short_name: plugin unique short name (length of short name should not exceed MAX_SHORT_NAME_LENGTH)
-        :param tox: tox instance
+        :param app: App instance
-        :param profile: profile instance
-        :param settings: profile settings
-        :param encrypt_save: ToxES instance.
         """
-        self._settings = settings
+        tox = getattr(app, '_tox')
-        self._profile = profile
+        super().__init__(tox)
-        self._tox = tox
+        self._settings = getattr(app, '_settings')
         name = name.strip()
         short_name = short_name.strip()
         if not name or not short_name:
@@ -52,7 +51,6 @@ class PluginSuperClass:
         self._name = name
         self._short_name = short_name[:MAX_SHORT_NAME_LENGTH]
         self._translator = None  # translator for plugin's GUI
-        self._encrypt_save = encrypt_save
 
     # -----------------------------------------------------------------------------------------------------------------
     # Get methods
@@ -76,12 +74,11 @@ class PluginSuperClass:
         """
         return self.__doc__
 
-    def get_menu(self, menu, row_number):
+    def get_menu(self, row_number):
         """
         This method creates items for menu which called on right click in list of friends
-        :param menu: menu instance
         :param row_number: number of selected row in list of contacts
-        :return list of QAction's
+        :return list of tuples (text, handler)
         """
         return []
 
@@ -100,12 +97,6 @@ class PluginSuperClass:
         """
         return None
 
-    def set_tox(self, tox):
-        """
-        New tox instance
-        """
-        self._tox = tox
-
     # -----------------------------------------------------------------------------------------------------------------
     # Plugin was stopped, started or new command received
     # -----------------------------------------------------------------------------------------------------------------
@@ -134,11 +125,9 @@ class PluginSuperClass:
         :param command: string with command
         """
         if command == 'help':
-            msgbox = QtWidgets.QMessageBox()
+            text = util_ui.tr('No commands available')
-            title = QtWidgets.QApplication.translate("PluginWindow", "List of commands for plugin {}")
+            title = util_ui.tr('List of commands for plugin {}').format(self._name)
-            msgbox.setWindowTitle(title.format(self._name))
+            util_ui.message_box(text, title)
-            msgbox.setText(QtWidgets.QApplication.translate("PluginWindow", "No commands available"))
-            msgbox.exec_()
 
     # -----------------------------------------------------------------------------------------------------------------
     # Translations support

toxygen/styles/dark_style.qss

@@ -1207,12 +1207,12 @@ MessageItem
     border: none;
 }
 
-MessageEdit
+MessageBrowser
 {
     border: none;
 }
 
-MessageEdit::focus
+MessageBrowser::focus
 {
     border: none;
 }
@@ -1222,7 +1222,7 @@ MessageItem::focus
     border: none;
 }
 
-MessageEdit:hover
+MessageBrowser:hover
 {
     border: none;
 }
@@ -1243,7 +1243,7 @@ QPushButton:hover
     background-color: #1E90FF;
 }
 
-MessageEdit 
+MessageBrowser
 {
     background-color: transparent;
 }
@@ -1253,7 +1253,7 @@ MessageEdit
     background-color: #1E90FF;
 }
 
-#friends_list:item:selected
+#friendsListWidget:item:selected
 {
     background-color: #333333;
 }
@@ -1277,7 +1277,7 @@ QListWidget > QLabel
     color: #A9A9A9;
 }
 
-#contact_name
+#searchLineEdit
 {
     padding-left: 22px;
 }
@@ -1322,3 +1322,14 @@ ClickableLabel:hover
 {
     background-color: #4A4949;
 }
+
+#warningLabel
+{
+    color: #BC1C1C;
+}
+
+#groupInvitesPushButton
+{
+    background-color: #009c00;
+}
+

toxygen/styles/style.qss

@@ -1,4 +1,4 @@
-#contact_name
+#searchLineEdit
 {
     padding-left: 22px;
 }
@@ -27,3 +27,14 @@ MessageEdit
 {
     background-color: transparent;
 }
+
+#warningLabel
+{
+    color: #BC1C1C;
+}
+
+#groupInvitesPushButton
+{
+    background-color: #009c00;
+}
+

toxygen/ui/av_widgets.py

@@ -0,0 +1,130 @@
+from PyQt5 import QtCore, QtGui, QtWidgets
+from ui import widgets
+import utils.util as util
+import pyaudio
+import wave
+
+
+class IncomingCallWidget(widgets.CenteredWidget):
+
+    def __init__(self, settings, calls_manager, friend_number, text, name):
+        super().__init__()
+        self._settings = settings
+        self._calls_manager = calls_manager
+        self.setWindowFlags(QtCore.Qt.CustomizeWindowHint | QtCore.Qt.WindowTitleHint | QtCore.Qt.WindowStaysOnTopHint)
+        self.resize(QtCore.QSize(500, 270))
+        self.avatar_label = QtWidgets.QLabel(self)
+        self.avatar_label.setGeometry(QtCore.QRect(10, 20, 64, 64))
+        self.avatar_label.setScaledContents(False)
+        self.name = widgets.DataLabel(self)
+        self.name.setGeometry(QtCore.QRect(90, 20, 300, 25))
+        self._friend_number = friend_number
+        font = QtGui.QFont()
+        font.setFamily(settings['font'])
+        font.setPointSize(16)
+        font.setBold(True)
+        self.name.setFont(font)
+        self.call_type = widgets.DataLabel(self)
+        self.call_type.setGeometry(QtCore.QRect(90, 55, 300, 25))
+        self.call_type.setFont(font)
+        self.accept_audio = QtWidgets.QPushButton(self)
+        self.accept_audio.setGeometry(QtCore.QRect(20, 100, 150, 150))
+        self.accept_video = QtWidgets.QPushButton(self)
+        self.accept_video.setGeometry(QtCore.QRect(170, 100, 150, 150))
+        self.decline = QtWidgets.QPushButton(self)
+        self.decline.setGeometry(QtCore.QRect(320, 100, 150, 150))
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'accept_audio.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.accept_audio.setIcon(icon)
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'accept_video.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.accept_video.setIcon(icon)
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'decline_call.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.decline.setIcon(icon)
+        self.accept_audio.setIconSize(QtCore.QSize(150, 150))
+        self.accept_video.setIconSize(QtCore.QSize(140, 140))
+        self.decline.setIconSize(QtCore.QSize(140, 140))
+        self.accept_audio.setStyleSheet("QPushButton { border: none }")
+        self.accept_video.setStyleSheet("QPushButton { border: none }")
+        self.decline.setStyleSheet("QPushButton { border: none }")
+        self.setWindowTitle(text)
+        self.name.setText(name)
+        self.call_type.setText(text)
+        self._processing = False
+        self.accept_audio.clicked.connect(self.accept_call_with_audio)
+        self.accept_video.clicked.connect(self.accept_call_with_video)
+        self.decline.clicked.connect(self.decline_call)
+
+        class SoundPlay(QtCore.QThread):
+
+            def __init__(self):
+                QtCore.QThread.__init__(self)
+                self.a = None
+
+            def run(self):
+                class AudioFile:
+                    chunk = 1024
+
+                    def __init__(self, fl):
+                        self.stop = False
+                        self.fl = fl
+                        self.wf = wave.open(self.fl, 'rb')
+                        self.p = pyaudio.PyAudio()
+                        self.stream = self.p.open(
+                            format=self.p.get_format_from_width(self.wf.getsampwidth()),
+                            channels=self.wf.getnchannels(),
+                            rate=self.wf.getframerate(),
+                            output=True)
+
+                    def play(self):
+                        while not self.stop:
+                            data = self.wf.readframes(self.chunk)
+                            while data and not self.stop:
+                                self.stream.write(data)
+                                data = self.wf.readframes(self.chunk)
+                            self.wf = wave.open(self.fl, 'rb')
+
+                    def close(self):
+                        self.stream.close()
+                        self.p.terminate()
+
+                self.a = AudioFile(util.join_path(util.get_sounds_directory(), 'call.wav'))
+                self.a.play()
+                self.a.close()
+
+        if self._settings['calls_sound']:
+            self.thread = SoundPlay()
+            self.thread.start()
+        else:
+            self.thread = None
+
+    def stop(self):
+        if self.thread is not None:
+            self.thread.a.stop = True
+            self.thread.wait()
+        self.close()
+
+    def accept_call_with_audio(self):
+        if self._processing:
+            return
+        self._processing = True
+        self._calls_manager.accept_call(self._friend_number, True, False)
+        self.stop()
+
+    def accept_call_with_video(self):
+        if self._processing:
+            return
+        self._processing = True
+        self._calls_manager.accept_call(self._friend_number, True, True)
+        self.stop()
+
+    def decline_call(self):
+        if self._processing:
+            return
+        self._processing = True
+        self._calls_manager.stop_call(self._friend_number, False)
+        self.stop()
+
+    def set_pixmap(self, pixmap):
+        self.avatar_label.setPixmap(pixmap)

toxygen/ui/contact_items.py

@@ -0,0 +1,97 @@
+from wrapper.toxcore_enums_and_consts import *
+from PyQt5 import QtCore, QtGui, QtWidgets
+from utils.util import *
+from ui.widgets import DataLabel
+
+
+class ContactItem(QtWidgets.QWidget):
+    """
+    Contact in friends list
+    """
+
+    def __init__(self, settings, parent=None):
+        QtWidgets.QWidget.__init__(self, parent)
+        mode = settings['compact_mode']
+        self.setBaseSize(QtCore.QSize(250, 40 if mode else 70))
+        self.avatar_label = QtWidgets.QLabel(self)
+        size = 32 if mode else 64
+        self.avatar_label.setGeometry(QtCore.QRect(3, 4, size, size))
+        self.avatar_label.setScaledContents(False)
+        self.avatar_label.setAlignment(QtCore.Qt.AlignCenter)
+        self.name = DataLabel(self)
+        self.name.setGeometry(QtCore.QRect(50 if mode else 75, 3 if mode else 10, 150, 15 if mode else 25))
+        font = QtGui.QFont()
+        font.setFamily(settings['font'])
+        font.setPointSize(10 if mode else 12)
+        font.setBold(True)
+        self.name.setFont(font)
+        self.status_message = DataLabel(self)
+        self.status_message.setGeometry(QtCore.QRect(50 if mode else 75, 20 if mode else 30, 170, 15 if mode else 20))
+        font.setPointSize(10)
+        font.setBold(False)
+        self.status_message.setFont(font)
+        self.connection_status = StatusCircle(self)
+        self.connection_status.setGeometry(QtCore.QRect(230, -2 if mode else 5, 32, 32))
+        self.messages = UnreadMessagesCount(settings, self)
+        self.messages.setGeometry(QtCore.QRect(20 if mode else 52, 20 if mode else 50, 30, 20))
+
+
+class StatusCircle(QtWidgets.QWidget):
+    """
+    Connection status
+    """
+    def __init__(self, parent):
+        QtWidgets.QWidget.__init__(self, parent)
+        self.setGeometry(0, 0, 32, 32)
+        self.label = QtWidgets.QLabel(self)
+        self.label.setGeometry(QtCore.QRect(0, 0, 32, 32))
+        self.unread = False
+
+    def update(self, status, unread_messages=None):
+        if unread_messages is None:
+            unread_messages = self.unread
+        else:
+            self.unread = unread_messages
+        if status == TOX_USER_STATUS['NONE']:
+            name = 'online'
+        elif status == TOX_USER_STATUS['AWAY']:
+            name = 'idle'
+        elif status == TOX_USER_STATUS['BUSY']:
+            name = 'busy'
+        else:
+            name = 'offline'
+        if unread_messages:
+            name += '_notification'
+            self.label.setGeometry(QtCore.QRect(0, 0, 32, 32))
+        else:
+            self.label.setGeometry(QtCore.QRect(2, 0, 32, 32))
+        pixmap = QtGui.QPixmap(join_path(get_images_directory(), '{}.png'.format(name)))
+        self.label.setPixmap(pixmap)
+
+
+class UnreadMessagesCount(QtWidgets.QWidget):
+
+    def __init__(self, settings, parent=None):
+        super().__init__(parent)
+        self._settings = settings
+        self.resize(30, 20)
+        self.label = QtWidgets.QLabel(self)
+        self.label.setGeometry(QtCore.QRect(0, 0, 30, 20))
+        self.label.setVisible(False)
+        font = QtGui.QFont()
+        font.setFamily(settings['font'])
+        font.setPointSize(12)
+        font.setBold(True)
+        self.label.setFont(font)
+        self.label.setAlignment(QtCore.Qt.AlignVCenter | QtCore.Qt.AlignCenter)
+        color = settings['unread_color']
+        self.label.setStyleSheet('QLabel { color: white; background-color: ' + color + '; border-radius: 10; }')
+
+    def update(self, messages_count):
+        color = self._settings['unread_color']
+        self.label.setStyleSheet('QLabel { color: white; background-color: ' + color + '; border-radius: 10; }')
+        if messages_count:
+            self.label.setVisible(True)
+            self.label.setText(str(messages_count))
+        else:
+            self.label.setVisible(False)

toxygen/ui/create_profile_screen.py

@@ -0,0 +1,52 @@
+from ui.widgets import *
+from PyQt5 import uic
+import utils.util as util
+import utils.ui as util_ui
+
+
+class CreateProfileScreenResult:
+
+    def __init__(self, save_into_default_folder, password):
+        self._save_into_default_folder = save_into_default_folder
+        self._password = password
+
+    def get_save_into_default_folder(self):
+        return self._save_into_default_folder
+
+    save_into_default_folder = property(get_save_into_default_folder)
+
+    def get_password(self):
+        return self._password
+
+    password = property(get_password)
+
+
+class CreateProfileScreen(CenteredWidget, DialogWithResult):
+
+    def __init__(self):
+        CenteredWidget.__init__(self)
+        DialogWithResult.__init__(self)
+        uic.loadUi(util.get_views_path('create_profile_screen'), self)
+        self.center()
+        self.createProfile.clicked.connect(self._create_profile)
+        self._retranslate_ui()
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr('New profile settings'))
+        self.defaultFolder.setText(util_ui.tr('Save in default folder'))
+        self.programFolder.setText(util_ui.tr('Save in program folder'))
+        self.password.setPlaceholderText(util_ui.tr('Password'))
+        self.confirmPassword.setPlaceholderText(util_ui.tr('Confirm password'))
+        self.createProfile.setText(util_ui.tr('Create profile'))
+        self.passwordLabel.setText(util_ui.tr('Password (at least 8 symbols):'))
+
+    def _create_profile(self):
+        password = self.password.text()
+        if password != self.confirmPassword.text():
+            self.errorLabel.setText(util_ui.tr('Passwords do not match'))
+            return
+        if 0 < len(password) < 8:
+            self.errorLabel.setText(util_ui.tr('Password must be at least 8 symbols'))
+            return
+        result = CreateProfileScreenResult(self.defaultFolder.isChecked(), password)
+        self.close_with_result(result)

toxygen/ui/group_bans_widgets.py

@@ -0,0 +1,68 @@
+from ui.widgets import CenteredWidget
+from PyQt5 import uic, QtWidgets, QtCore
+import utils.util as util
+import utils.ui as util_ui
+
+
+class GroupBanItem(QtWidgets.QWidget):
+
+    def __init__(self, ban, cancel_ban, can_cancel_ban, parent=None):
+        super().__init__(parent)
+        self._ban = ban
+        self._cancel_ban = cancel_ban
+        self._can_cancel_ban = can_cancel_ban
+
+        uic.loadUi(util.get_views_path('gc_ban_item'), self)
+        self._update_ui()
+
+    def _update_ui(self):
+        self._retranslate_ui()
+
+        self.banTargetLabel.setText(self._ban.ban_target)
+        ban_time = self._ban.ban_time
+        self.banTimeLabel.setText(util.unix_time_to_long_str(ban_time))
+
+        self.cancelPushButton.clicked.connect(self._cancel_ban)
+        self.cancelPushButton.setEnabled(self._can_cancel_ban)
+
+    def _retranslate_ui(self):
+        self.cancelPushButton.setText(util_ui.tr('Cancel ban'))
+
+    def _cancel_ban(self):
+        self._cancel_ban(self._ban.ban_id)
+
+
+class GroupBansScreen(CenteredWidget):
+
+    def __init__(self, groups_service, group):
+        super().__init__()
+        self._groups_service = groups_service
+        self._group = group
+
+        uic.loadUi(util.get_views_path('bans_list_screen'), self)
+        self._update_ui()
+
+    def _update_ui(self):
+        self._retranslate_ui()
+
+        self._refresh_bans_list()
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr('Bans list for group "{}"').format(self._group.name))
+
+    def _refresh_bans_list(self):
+        self.bansListWidget.clear()
+        can_cancel_ban = self._group.is_self_moderator_or_founder()
+        for ban in self._group.bans:
+            self._create_ban_item(ban, can_cancel_ban)
+
+    def _create_ban_item(self, ban, can_cancel_ban):
+        item = GroupBanItem(ban, self._on_ban_cancelled, can_cancel_ban, self.bansListWidget)
+        elem = QtWidgets.QListWidgetItem()
+        elem.setSizeHint(QtCore.QSize(item.width(), item.height()))
+        self.bansListWidget.addItem(elem)
+        self.bansListWidget.setItemWidget(elem, item)
+
+    def _on_ban_cancelled(self, ban_id):
+        self._groups_service.cancel_ban(self._group.number, ban_id)
+        self._refresh_bans_list()

toxygen/ui/group_invites_widgets.py

@@ -0,0 +1,127 @@
+from PyQt5 import uic, QtWidgets
+import utils.util as util
+from ui.widgets import *
+
+
+class GroupInviteItem(QtWidgets.QWidget):
+
+    def __init__(self, parent, chat_name, avatar, friend_name):
+        super().__init__(parent)
+        uic.loadUi(util.get_views_path('gc_invite_item'), self)
+
+        self.groupNameLabel.setText(chat_name)
+        self.friendNameLabel.setText(friend_name)
+        self.friendAvatarLabel.setPixmap(avatar)
+
+    def is_selected(self):
+        return self.selectCheckBox.isChecked()
+
+    def subscribe_checked_event(self, callback):
+        self.selectCheckBox.clicked.connect(callback)
+
+
+class GroupInvitesScreen(CenteredWidget):
+
+    def __init__(self, groups_service, profile, contacts_provider):
+        super().__init__()
+        self._groups_service = groups_service
+        self._profile = profile
+        self._contacts_provider = contacts_provider
+
+        uic.loadUi(util.get_views_path('group_invites_screen'), self)
+
+        self._update_ui()
+
+    def _update_ui(self):
+        self._retranslate_ui()
+
+        self._refresh_invites_list()
+
+        self.nickLineEdit.setText(self._profile.name)
+        self.statusComboBox.setCurrentIndex(self._profile.status or 0)
+
+        self.nickLineEdit.textChanged.connect(self._nick_changed)
+        self.acceptPushButton.clicked.connect(self._accept_invites)
+        self.declinePushButton.clicked.connect(self._decline_invites)
+
+        self.invitesListWidget.setSelectionMode(QtWidgets.QAbstractItemView.NoSelection)
+        self.invitesListWidget.setVerticalScrollMode(QtWidgets.QAbstractItemView.ScrollPerPixel)
+
+        self._update_buttons_state()
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr('Group chat invites'))
+        self.noInvitesLabel.setText(util_ui.tr('No group invites found'))
+        self.acceptPushButton.setText(util_ui.tr('Accept'))
+        self.declinePushButton.setText(util_ui.tr('Decline'))
+        self.statusComboBox.addItem(util_ui.tr('Online'))
+        self.statusComboBox.addItem(util_ui.tr('Away'))
+        self.statusComboBox.addItem(util_ui.tr('Busy'))
+        self.nickLineEdit.setPlaceholderText(util_ui.tr('Your nick in chat'))
+        self.passwordLineEdit.setPlaceholderText(util_ui.tr('Optional password'))
+
+    def _get_friend(self, public_key):
+        return self._contacts_provider.get_friend_by_public_key(public_key)
+
+    def _accept_invites(self):
+        nick = self.nickLineEdit.text()
+        password = self.passwordLineEdit.text()
+        status = self.statusComboBox.currentIndex()
+
+        selected_invites = self._get_selected_invites()
+        for invite in selected_invites:
+            self._groups_service.accept_group_invite(invite, nick, status, password)
+
+        self._refresh_invites_list()
+        self._close_window_if_needed()
+
+    def _decline_invites(self):
+        selected_invites = self._get_selected_invites()
+        for invite in selected_invites:
+            self._groups_service.decline_group_invite(invite)
+
+        self._refresh_invites_list()
+        self._close_window_if_needed()
+
+    def _get_selected_invites(self):
+        all_invites = self._groups_service.get_group_invites()
+        selected = []
+        items_count = len(all_invites)
+        for index in range(items_count):
+            list_item = self.invitesListWidget.item(index)
+            item_widget = self.invitesListWidget.itemWidget(list_item)
+            if item_widget.is_selected():
+                selected.append(all_invites[index])
+
+        return selected
+
+    def _refresh_invites_list(self):
+        self.invitesListWidget.clear()
+        invites = self._groups_service.get_group_invites()
+        for invite in invites:
+            self._create_invite_item(invite)
+
+    def _create_invite_item(self, invite):
+        friend = self._get_friend(invite.friend_public_key)
+        item = GroupInviteItem(self.invitesListWidget, invite.chat_name, friend.get_pixmap(), friend.name)
+        item.subscribe_checked_event(self._item_selected)
+        elem = QtWidgets.QListWidgetItem()
+        elem.setSizeHint(QtCore.QSize(item.width(), item.height()))
+        self.invitesListWidget.addItem(elem)
+        self.invitesListWidget.setItemWidget(elem, item)
+
+    def _item_selected(self):
+        self._update_buttons_state()
+
+    def _nick_changed(self):
+        self._update_buttons_state()
+
+    def _update_buttons_state(self):
+        nick = self.nickLineEdit.text()
+        selected_items = self._get_selected_invites()
+        self.acceptPushButton.setEnabled(bool(nick) and len(selected_items))
+        self.declinePushButton.setEnabled(len(selected_items) > 0)
+
+    def _close_window_if_needed(self):
+        if self._groups_service.group_invites_count == 0:
+            self.close()

toxygen/ui/group_peers_list.py

@@ -0,0 +1,33 @@
+from ui.widgets import *
+from wrapper.toxcore_enums_and_consts import *
+
+
+class PeerItem(QtWidgets.QWidget):
+
+    def __init__(self, peer, handler, width, parent=None):
+        super().__init__(parent)
+        self.resize(QtCore.QSize(width, 34))
+        self.nameLabel = DataLabel(self)
+        self.nameLabel.setGeometry(5, 0, width - 5, 34)
+        name = peer.name
+        if peer.is_current_user:
+            name += util_ui.tr(' (You)')
+        self.nameLabel.setText(name)
+        if peer.status == TOX_USER_STATUS['NONE']:
+            style = 'QLabel {color: green}'
+        elif peer.status == TOX_USER_STATUS['AWAY']:
+            style = 'QLabel {color: yellow}'
+        else:
+            style = 'QLabel {color: red}'
+        self.nameLabel.setStyleSheet(style)
+        self.nameLabel.mousePressEvent = lambda x: handler(peer.id)
+
+
+class PeerTypeItem(QtWidgets.QWidget):
+
+    def __init__(self, text, width, parent=None):
+        super().__init__(parent)
+        self.resize(QtCore.QSize(width, 34))
+        self.nameLabel = DataLabel(self)
+        self.nameLabel.setGeometry(5, 0, width - 5, 34)
+        self.nameLabel.setText(text)

toxygen/ui/group_settings_widgets.py

@@ -0,0 +1,77 @@
+from ui.widgets import CenteredWidget
+from PyQt5 import uic
+import utils.util as util
+import utils.ui as util_ui
+
+
+class GroupManagementScreen(CenteredWidget):
+
+    def __init__(self, groups_service, group):
+        super().__init__()
+        self._groups_service = groups_service
+        self._group = group
+
+        uic.loadUi(util.get_views_path('group_management_screen'), self)
+        self._update_ui()
+
+    def _update_ui(self):
+        self._retranslate_ui()
+
+        self.passwordLineEdit.setText(self._group.password)
+        self.privacyStateComboBox.setCurrentIndex(1 if self._group.is_private else 0)
+        self.peersLimitSpinBox.setValue(self._group.peers_limit)
+
+        self.savePushButton.clicked.connect(self._save)
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr('Group "{}"').format(self._group.name))
+        self.passwordLabel.setText(util_ui.tr('Password:'))
+        self.peerLimitLabel.setText(util_ui.tr('Peer limit:'))
+        self.privacyStateLabel.setText(util_ui.tr('Privacy state:'))
+        self.savePushButton.setText(util_ui.tr('Save'))
+
+        self.privacyStateComboBox.clear()
+        self.privacyStateComboBox.addItem(util_ui.tr('Public'))
+        self.privacyStateComboBox.addItem(util_ui.tr('Private'))
+
+    def _save(self):
+        password = self.passwordLineEdit.text()
+        privacy_state = self.privacyStateComboBox.currentIndex()
+        peers_limit = self.peersLimitSpinBox.value()
+
+        self._groups_service.set_group_password(self._group, password)
+        self._groups_service.set_group_privacy_state(self._group, privacy_state)
+        self._groups_service.set_group_peers_limit(self._group, peers_limit)
+
+        self.close()
+
+
+class GroupSettingsScreen(CenteredWidget):
+
+    def __init__(self, group):
+        super().__init__()
+        self._group = group
+
+        uic.loadUi(util.get_views_path('gc_settings_screen'), self)
+        self._update_ui()
+
+    def _update_ui(self):
+        self._retranslate_ui()
+
+        self.copyPasswordPushButton.clicked.connect(self._copy_password)
+        self.copyPasswordPushButton.setEnabled(bool(self._group.password))
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr('Group "{}"').format(self._group.name))
+        if self._group.password:
+            password_label_text = '{} {}'.format(util_ui.tr('Password:'), self._group.password)
+        else:
+            password_label_text = util_ui.tr('Password is not set')
+        self.passwordLabel.setText(password_label_text)
+        self.peerLimitLabel.setText('{} {}'.format(util_ui.tr('Peer limit:'), self._group.peers_limit))
+        privacy_state = util_ui.tr('Private') if self._group.is_private else util_ui.tr('Public')
+        self.privacyStateLabel.setText('{} {}'.format(util_ui.tr('Privacy state:'), privacy_state))
+        self.copyPasswordPushButton.setText(util_ui.tr('Copy password'))
+
+    def _copy_password(self):
+        util_ui.copy_to_clipboard(self._group.password)

toxygen/ui/groups_widgets.py

@@ -0,0 +1,123 @@
+from PyQt5 import uic
+import utils.util as util
+from ui.widgets import *
+from wrapper.toxcore_enums_and_consts import *
+
+
+class BaseGroupScreen(CenteredWidget):
+
+    def __init__(self, groups_service, profile):
+        super().__init__()
+        self._groups_service = groups_service
+        self._profile = profile
+
+    def _retranslate_ui(self):
+        self.nickLineEdit.setPlaceholderText(util_ui.tr('Your nick in chat'))
+        self.nickLabel.setText(util_ui.tr('Nickname:'))
+        self.statusLabel.setText(util_ui.tr('Status:'))
+        self.statusComboBox.addItem(util_ui.tr('Online'))
+        self.statusComboBox.addItem(util_ui.tr('Away'))
+        self.statusComboBox.addItem(util_ui.tr('Busy'))
+
+
+class CreateGroupScreen(BaseGroupScreen):
+
+    def __init__(self, groups_service, profile):
+        super().__init__(groups_service, profile)
+        uic.loadUi(util.get_views_path('create_group_screen'), self)
+        self.center()
+        self._update_ui()
+
+    def _update_ui(self):
+        self._retranslate_ui()
+
+        self.statusComboBox.setCurrentIndex(self._profile.status or 0)
+        self.nickLineEdit.setText(self._profile.name)
+
+        self.addGroupButton.clicked.connect(self._create_group)
+        self.groupNameLineEdit.textChanged.connect(self._group_name_changed)
+        self.nickLineEdit.textChanged.connect(self._nick_changed)
+
+    def _retranslate_ui(self):
+        super()._retranslate_ui()
+        self.setWindowTitle(util_ui.tr('Create new group chat'))
+        self.groupNameLabel.setText(util_ui.tr('Group name:'))
+        self.groupTypeLabel.setText(util_ui.tr('Group type:'))
+        self.groupNameLineEdit.setPlaceholderText(util_ui.tr('Group\'s persistent name'))
+        self.addGroupButton.setText(util_ui.tr('Create group'))
+        self.groupTypeComboBox.addItem(util_ui.tr('Public'))
+        self.groupTypeComboBox.addItem(util_ui.tr('Private'))
+        self.groupTypeComboBox.setCurrentIndex(1)
+
+    def _create_group(self):
+        group_name = self.groupNameLineEdit.text()
+        privacy_state = self.groupTypeComboBox.currentIndex()
+        nick = self.nickLineEdit.text()
+        status = self.statusComboBox.currentIndex()
+        self._groups_service.create_new_gc(group_name, privacy_state, nick, status)
+        self.close()
+
+    def _nick_changed(self):
+        self._update_button_state()
+
+    def _group_name_changed(self):
+        self._update_button_state()
+
+    def _update_button_state(self):
+        is_nick_set = bool(self.nickLineEdit.text())
+        is_group_name_set = bool(self.groupNameLineEdit.text())
+        self.addGroupButton.setEnabled(is_nick_set and is_group_name_set)
+
+
+class JoinGroupScreen(BaseGroupScreen):
+
+    def __init__(self, groups_service, profile):
+        super().__init__(groups_service, profile)
+        uic.loadUi(util.get_views_path('join_group_screen'), self)
+        self.center()
+        self._update_ui()
+
+    def _update_ui(self):
+        self._retranslate_ui()
+
+        self.statusComboBox.setCurrentIndex(self._profile.status or 0)
+        self.nickLineEdit.setText(self._profile.name)
+
+        self.chatIdLineEdit.textChanged.connect(self._chat_id_changed)
+        self.joinGroupButton.clicked.connect(self._join_group)
+        self.nickLineEdit.textChanged.connect(self._nick_changed)
+
+    def _retranslate_ui(self):
+        super()._retranslate_ui()
+        self.setWindowTitle(util_ui.tr('Join public group chat'))
+        self.chatIdLabel.setText(util_ui.tr('Group ID:'))
+        self.passwordLabel.setText(util_ui.tr('Password:'))
+        self.chatIdLineEdit.setPlaceholderText(util_ui.tr('Group\'s chat ID'))
+        self.joinGroupButton.setText(util_ui.tr('Join group'))
+        self.passwordLineEdit.setPlaceholderText(util_ui.tr('Optional password'))
+
+    def _chat_id_changed(self):
+        self._update_button_state()
+
+    def _nick_changed(self):
+        self._update_button_state()
+
+    def _update_button_state(self):
+        chat_id = self._get_chat_id()
+        is_nick_set = bool(self.nickLineEdit.text())
+        self.joinGroupButton.setEnabled(len(chat_id) == TOX_GROUP_CHAT_ID_SIZE * 2 and is_nick_set)
+
+    def _join_group(self):
+        chat_id = self._get_chat_id()
+        password = self.passwordLineEdit.text()
+        nick = self.nickLineEdit.text()
+        status = self.statusComboBox.currentIndex()
+        self._groups_service.join_gc_by_id(chat_id, password, nick, status)
+        self.close()
+
+    def _get_chat_id(self):
+        chat_id = self.chatIdLineEdit.text().strip()
+        if chat_id.startswith('tox:'):
+            chat_id = chat_id[4:]
+
+        return chat_id

toxygen/ui/items_factories.py

@@ -0,0 +1,90 @@
+from ui.contact_items import *
+from ui.messages_widgets import *
+
+
+class ContactItemsFactory:
+
+    def __init__(self, settings, main_screen):
+        self._settings = settings
+        self._friends_list = main_screen.friends_list
+
+    def create_contact_item(self):
+        item = ContactItem(self._settings)
+        elem = QtWidgets.QListWidgetItem(self._friends_list)
+        elem.setSizeHint(QtCore.QSize(250, 40 if self._settings['compact_mode'] else 70))
+        self._friends_list.addItem(elem)
+        self._friends_list.setItemWidget(elem, item)
+
+        return item
+
+
+class MessagesItemsFactory:
+
+    def __init__(self, settings, plugin_loader, smiley_loader, main_screen, delete_action):
+        self._file_transfers_handler = None
+        self._settings, self._plugin_loader = settings, plugin_loader
+        self._smiley_loader, self._delete_action = smiley_loader, delete_action
+        self._messages = main_screen.messages
+        self._message_edit = main_screen.messageEdit
+
+    def set_file_transfers_handler(self, file_transfers_handler):
+        self._file_transfers_handler = file_transfers_handler
+
+    def create_message_item(self, message, append=True, pixmap=None):
+        item = message.get_widget(self._settings, self._create_message_browser,
+                                  self._delete_action, self._messages)
+        if pixmap is not None:
+            item.set_avatar(pixmap)
+        elem = QtWidgets.QListWidgetItem()
+        elem.setSizeHint(QtCore.QSize(self._messages.width(), item.height()))
+        if append:
+            self._messages.addItem(elem)
+        else:
+            self._messages.insertItem(0, elem)
+        self._messages.setItemWidget(elem, item)
+
+        return item
+
+    def create_inline_item(self, message, append=True, position=0):
+        elem = QtWidgets.QListWidgetItem()
+        item = InlineImageItem(message.data, self._messages.width(), elem, self._messages)
+        elem.setSizeHint(QtCore.QSize(self._messages.width(), item.height()))
+        if append:
+            self._messages.addItem(elem)
+        else:
+            self._messages.insertItem(position, elem)
+        self._messages.setItemWidget(elem, item)
+
+        return item
+
+    def create_unsent_file_item(self, message, append=True):
+        item = message.get_widget(self._file_transfers_handler, self._settings, self._messages.width(), self._messages)
+        elem = QtWidgets.QListWidgetItem()
+        elem.setSizeHint(QtCore.QSize(self._messages.width() - 30, 34))
+        if append:
+            self._messages.addItem(elem)
+        else:
+            self._messages.insertItem(0, elem)
+        self._messages.setItemWidget(elem, item)
+
+        return item
+
+    def create_file_transfer_item(self, message, append=True):
+        item = message.get_widget(self._file_transfers_handler, self._settings, self._messages.width(), self._messages)
+        elem = QtWidgets.QListWidgetItem()
+        elem.setSizeHint(QtCore.QSize(self._messages.width() - 30, 34))
+        if append:
+            self._messages.addItem(elem)
+        else:
+            self._messages.insertItem(0, elem)
+        self._messages.setItemWidget(elem, item)
+
+        return item
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _create_message_browser(self, text, width, message_type, parent=None):
+        return MessageBrowser(self._settings, self._message_edit, self._smiley_loader, self._plugin_loader,
+                              text, width, message_type, parent)

toxygen/ui/login_screen.py

@@ -0,0 +1,77 @@
+from ui.widgets import *
+from PyQt5 import uic
+import utils.util as util
+import utils.ui as util_ui
+import os.path
+
+
+class LoginScreenResult:
+
+    def __init__(self, profile_path, load_as_default, password=None):
+        self._profile_path = profile_path
+        self._load_as_default = load_as_default
+        self._password = password
+
+    def get_profile_path(self):
+        return self._profile_path
+
+    profile_path = property(get_profile_path)
+
+    def get_load_as_default(self):
+        return self._load_as_default
+
+    load_as_default = property(get_load_as_default)
+
+    def get_password(self):
+        return self._password
+
+    password = property(get_password)
+
+    def is_new_profile(self):
+        return not os.path.isfile(self._profile_path)
+
+
+class LoginScreen(CenteredWidget, DialogWithResult):
+
+    def __init__(self):
+        CenteredWidget.__init__(self)
+        DialogWithResult.__init__(self)
+        uic.loadUi(util.get_views_path('login_screen'), self)
+        self.center()
+        self._profiles = []
+        self._update_ui()
+
+    def update_select(self, profiles):
+        profiles = sorted(profiles, key=lambda p: p[1])
+        self._profiles = list(profiles)
+        self.profilesComboBox.addItems(list(map(lambda p: p[1], profiles)))
+        self.loadProfilePushButton.setEnabled(len(profiles) > 0)
+
+    def _update_ui(self):
+        self.profileNameLineEdit = LineEditWithEnterSupport(self._create_profile, self)
+        self.profileNameLineEdit.setGeometry(QtCore.QRect(20, 100, 160, 30))
+        self._retranslate_ui()
+        self.createProfilePushButton.clicked.connect(self._create_profile)
+        self.loadProfilePushButton.clicked.connect(self._load_existing_profile)
+
+    def _create_profile(self):
+        path = self.profileNameLineEdit.text()
+        load_as_default = self.defaultProfileCheckBox.isChecked()
+        result = LoginScreenResult(path, load_as_default)
+        self.close_with_result(result)
+
+    def _load_existing_profile(self):
+        index = self.profilesComboBox.currentIndex()
+        load_as_default = self.defaultProfileCheckBox.isChecked()
+        path = util.join_path(self._profiles[index][0], self._profiles[index][1] + '.tox')
+        result = LoginScreenResult(path, load_as_default)
+        self.close_with_result(result)
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr('Log in'))
+        self.profileNameLineEdit.setPlaceholderText(util_ui.tr('Profile name'))
+        self.createProfilePushButton.setText(util_ui.tr('Create'))
+        self.loadProfilePushButton.setText(util_ui.tr('Load profile'))
+        self.defaultProfileCheckBox.setText(util_ui.tr('Use as default'))
+        self.existingProfileGroupBox.setTitle(util_ui.tr('Load existing profile'))
+        self.newProfileGroupBox.setTitle(util_ui.tr('Create new profile'))

toxygen/ui/main_screen.py

@@ -0,0 +1,718 @@
+from ui.contact_items import *
+from ui.widgets import MultilineEdit
+from ui.main_screen_widgets import *
+import utils.util as util
+import utils.ui as util_ui
+from PyQt5 import uic
+
+
+class MainWindow(QtWidgets.QMainWindow):
+
+    def __init__(self, settings, tray):
+        super().__init__()
+        self._settings = settings
+        self._contacts_manager = None
+        self._tray = tray
+        self._widget_factory = None
+        self._modal_window = None
+        self._plugins_loader = None
+        self.setAcceptDrops(True)
+        self._saved = False
+        self._smiley_window = None
+        self._profile = self._toxes = self._messenger = None
+        self._file_transfer_handler = self._history_loader = self._groups_service = self._calls_manager = None
+        self._should_show_group_peers_list = False
+        self.initUI()
+
+    def set_dependencies(self, widget_factory, tray, contacts_manager, messenger, profile, plugins_loader,
+                         file_transfer_handler, history_loader, calls_manager, groups_service, toxes):
+        self._widget_factory = widget_factory
+        self._tray = tray
+        self._contacts_manager = contacts_manager
+        self._profile = profile
+        self._plugins_loader = plugins_loader
+        self._file_transfer_handler = file_transfer_handler
+        self._history_loader = history_loader
+        self._calls_manager = calls_manager
+        self._groups_service = groups_service
+        self._toxes = toxes
+        self._messenger = messenger
+        self._contacts_manager.active_contact_changed.add_callback(self._new_contact_selected)
+        self.messageEdit.set_dependencies(messenger, contacts_manager, file_transfer_handler)
+
+        self.update_gc_invites_button_state()
+
+    def show(self):
+        super().show()
+        self._contacts_manager.update()
+        if self._settings['show_welcome_screen']:
+            self._modal_window = self._widget_factory.create_welcome_window()
+
+    def setup_menu(self, window):
+        self.menubar = QtWidgets.QMenuBar(window)
+        self.menubar.setObjectName("menubar")
+        self.menubar.setNativeMenuBar(False)
+        self.menubar.setMinimumSize(self.width(), 25)
+        self.menubar.setMaximumSize(self.width(), 25)
+        self.menubar.setBaseSize(self.width(), 25)
+        self.menuProfile = QtWidgets.QMenu(self.menubar)
+
+        self.menuProfile = QtWidgets.QMenu(self.menubar)
+        self.menuProfile.setObjectName("menuProfile")
+        self.menuGC = QtWidgets.QMenu(self.menubar)
+        self.menuSettings = QtWidgets.QMenu(self.menubar)
+        self.menuSettings.setObjectName("menuSettings")
+        self.menuPlugins = QtWidgets.QMenu(self.menubar)
+        self.menuPlugins.setObjectName("menuPlugins")
+        self.menuAbout = QtWidgets.QMenu(self.menubar)
+        self.menuAbout.setObjectName("menuAbout")
+
+        self.actionAdd_friend = QtWidgets.QAction(window)
+        self.actionAdd_friend.setObjectName("actionAdd_friend")
+        self.actionprofilesettings = QtWidgets.QAction(window)
+        self.actionprofilesettings.setObjectName("actionprofilesettings")
+        self.actionPrivacy_settings = QtWidgets.QAction(window)
+        self.actionPrivacy_settings.setObjectName("actionPrivacy_settings")
+        self.actionInterface_settings = QtWidgets.QAction(window)
+        self.actionInterface_settings.setObjectName("actionInterface_settings")
+        self.actionNotifications = QtWidgets.QAction(window)
+        self.actionNotifications.setObjectName("actionNotifications")
+        self.actionNetwork = QtWidgets.QAction(window)
+        self.actionNetwork.setObjectName("actionNetwork")
+        self.actionAbout_program = QtWidgets.QAction(window)
+        self.actionAbout_program.setObjectName("actionAbout_program")
+        self.updateSettings = QtWidgets.QAction(window)
+        self.actionSettings = QtWidgets.QAction(window)
+        self.actionSettings.setObjectName("actionSettings")
+        self.audioSettings = QtWidgets.QAction(window)
+        self.videoSettings = QtWidgets.QAction(window)
+        self.pluginData = QtWidgets.QAction(window)
+        self.importPlugin = QtWidgets.QAction(window)
+        self.reloadPlugins = QtWidgets.QAction(window)
+        self.lockApp = QtWidgets.QAction(window)
+        self.createGC = QtWidgets.QAction(window)
+        self.joinGC = QtWidgets.QAction(window)
+        self.gc_invites = QtWidgets.QAction(window)
+
+        self.menuProfile.addAction(self.actionAdd_friend)
+        self.menuProfile.addAction(self.actionSettings)
+        self.menuProfile.addAction(self.lockApp)
+        self.menuGC.addAction(self.createGC)
+        self.menuGC.addAction(self.joinGC)
+        self.menuGC.addAction(self.gc_invites)
+        self.menuSettings.addAction(self.actionPrivacy_settings)
+        self.menuSettings.addAction(self.actionInterface_settings)
+        self.menuSettings.addAction(self.actionNotifications)
+        self.menuSettings.addAction(self.actionNetwork)
+        self.menuSettings.addAction(self.audioSettings)
+        self.menuSettings.addAction(self.videoSettings)
+        self.menuSettings.addAction(self.updateSettings)
+        self.menuPlugins.addAction(self.pluginData)
+        self.menuPlugins.addAction(self.importPlugin)
+        self.menuPlugins.addAction(self.reloadPlugins)
+        self.menuAbout.addAction(self.actionAbout_program)
+
+        self.menubar.addAction(self.menuProfile.menuAction())
+        self.menubar.addAction(self.menuGC.menuAction())
+        self.menubar.addAction(self.menuSettings.menuAction())
+        self.menubar.addAction(self.menuPlugins.menuAction())
+        self.menubar.addAction(self.menuAbout.menuAction())
+
+        self.actionAbout_program.triggered.connect(self.about_program)
+        self.actionNetwork.triggered.connect(self.network_settings)
+        self.actionAdd_friend.triggered.connect(self.add_contact_triggered)
+        self.createGC.triggered.connect(self.create_gc)
+        self.joinGC.triggered.connect(self.join_gc)
+        self.actionSettings.triggered.connect(self.profile_settings)
+        self.actionPrivacy_settings.triggered.connect(self.privacy_settings)
+        self.actionInterface_settings.triggered.connect(self.interface_settings)
+        self.actionNotifications.triggered.connect(self.notification_settings)
+        self.audioSettings.triggered.connect(self.audio_settings)
+        self.videoSettings.triggered.connect(self.video_settings)
+        self.updateSettings.triggered.connect(self.update_settings)
+        self.pluginData.triggered.connect(self.plugins_menu)
+        self.lockApp.triggered.connect(self.lock_app)
+        self.importPlugin.triggered.connect(self.import_plugin)
+        self.reloadPlugins.triggered.connect(self.reload_plugins)
+        self.gc_invites.triggered.connect(self._open_gc_invites_list)
+
+    def languageChange(self, *args, **kwargs):
+        self.retranslateUi()
+
+    def event(self, event):
+        if event.type() == QtCore.QEvent.WindowActivate:
+            self._tray.setIcon(QtGui.QIcon(util.join_path(util.get_images_directory(), 'icon.png')))
+            self.messages.repaint()
+        return super().event(event)
+
+    def retranslateUi(self):
+        self.lockApp.setText(util_ui.tr("Lock"))
+        self.menuPlugins.setTitle(util_ui.tr("Plugins"))
+        self.menuGC.setTitle(util_ui.tr("Group chats"))
+        self.pluginData.setText(util_ui.tr("List of plugins"))
+        self.menuProfile.setTitle(util_ui.tr("Profile"))
+        self.menuSettings.setTitle(util_ui.tr("Settings"))
+        self.menuAbout.setTitle(util_ui.tr("About"))
+        self.actionAdd_friend.setText(util_ui.tr("Add contact"))
+        self.createGC.setText(util_ui.tr("Create group chat"))
+        self.joinGC.setText(util_ui.tr("Join group chat"))
+        self.gc_invites.setText(util_ui.tr("Group invites"))
+        self.actionprofilesettings.setText(util_ui.tr("Profile"))
+        self.actionPrivacy_settings.setText(util_ui.tr("Privacy"))
+        self.actionInterface_settings.setText(util_ui.tr("Interface"))
+        self.actionNotifications.setText(util_ui.tr("Notifications"))
+        self.actionNetwork.setText(util_ui.tr("Network"))
+        self.actionAbout_program.setText(util_ui.tr("About program"))
+        self.actionSettings.setText(util_ui.tr("Settings"))
+        self.audioSettings.setText(util_ui.tr("Audio"))
+        self.videoSettings.setText(util_ui.tr("Video"))
+        self.updateSettings.setText(util_ui.tr("Updates"))
+        self.importPlugin.setText(util_ui.tr("Import plugin"))
+        self.reloadPlugins.setText(util_ui.tr("Reload plugins"))
+
+        self.searchLineEdit.setPlaceholderText(util_ui.tr("Search"))
+        self.sendMessageButton.setToolTip(util_ui.tr("Send message"))
+        self.callButton.setToolTip(util_ui.tr("Start audio call with friend"))
+        self.contactsFilterComboBox.clear()
+        self.contactsFilterComboBox.addItem(util_ui.tr("All"))
+        self.contactsFilterComboBox.addItem(util_ui.tr("Online"))
+        self.contactsFilterComboBox.addItem(util_ui.tr("Online first"))
+        self.contactsFilterComboBox.addItem(util_ui.tr("Name"))
+        self.contactsFilterComboBox.addItem(util_ui.tr("Online and by name"))
+        self.contactsFilterComboBox.addItem(util_ui.tr("Online first and by name"))
+
+    def setup_right_bottom(self, Form):
+        Form.resize(650, 60)
+        self.messageEdit = MessageArea(Form, self)
+        self.messageEdit.setGeometry(QtCore.QRect(0, 3, 450, 55))
+        font = QtGui.QFont()
+        font.setPointSize(11)
+        font.setFamily(self._settings['font'])
+        self.messageEdit.setFont(font)
+
+        self.sendMessageButton = QtWidgets.QPushButton(Form)
+        self.sendMessageButton.setGeometry(QtCore.QRect(565, 3, 60, 55))
+
+        self.menuButton = MenuButton(Form, self.show_menu)
+        self.menuButton.setGeometry(QtCore.QRect(QtCore.QRect(455, 3, 55, 55)))
+
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'send.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.sendMessageButton.setIcon(icon)
+        self.sendMessageButton.setIconSize(QtCore.QSize(45, 60))
+
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'menu.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.menuButton.setIcon(icon)
+        self.menuButton.setIconSize(QtCore.QSize(40, 40))
+
+        self.sendMessageButton.clicked.connect(self.send_message)
+
+        QtCore.QMetaObject.connectSlotsByName(Form)
+
+    def setup_left_column(self, left_column):
+        uic.loadUi(util.get_views_path('ms_left_column'), left_column)
+
+        pixmap = QtGui.QPixmap()
+        pixmap.load(util.join_path(util.get_images_directory(), 'search.png'))
+        left_column.searchLabel.setPixmap(pixmap)
+
+        self.name = DataLabel(left_column)
+        self.name.setGeometry(QtCore.QRect(75, 15, 150, 25))
+        font = QtGui.QFont()
+        font.setFamily(self._settings['font'])
+        font.setPointSize(14)
+        font.setBold(True)
+        self.name.setFont(font)
+
+        self.status_message = DataLabel(left_column)
+        self.status_message.setGeometry(QtCore.QRect(75, 35, 170, 25))
+
+        self.connection_status = StatusCircle(left_column)
+        self.connection_status.setGeometry(QtCore.QRect(230, 10, 32, 32))
+
+        left_column.contactsFilterComboBox.activated[int].connect(lambda x: self._filtering())
+
+        self.avatar_label = left_column.avatarLabel
+        self.searchLineEdit = left_column.searchLineEdit
+        self.contacts_filter = self.contactsFilterComboBox = left_column.contactsFilterComboBox
+
+        self.groupInvitesPushButton = left_column.groupInvitesPushButton
+
+        self.groupInvitesPushButton.clicked.connect(self._open_gc_invites_list)
+        self.avatar_label.mouseReleaseEvent = self.profile_settings
+        self.status_message.mouseReleaseEvent = self.profile_settings
+        self.name.mouseReleaseEvent = self.profile_settings
+
+        self.friends_list = left_column.friendsListWidget
+        self.friends_list.itemSelectionChanged.connect(self._selected_contact_changed)
+        self.friends_list.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
+        self.friends_list.customContextMenuRequested.connect(self._friend_right_click)
+        self.friends_list.setVerticalScrollMode(QtWidgets.QAbstractItemView.ScrollPerPixel)
+        self.friends_list.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn)
+        self.friends_list.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
+        self.friends_list.verticalScrollBar().setContextMenuPolicy(QtCore.Qt.NoContextMenu)
+
+    def setup_right_top(self, Form):
+        Form.resize(650, 75)
+        self.account_avatar = QtWidgets.QLabel(Form)
+        self.account_avatar.setGeometry(QtCore.QRect(10, 5, 64, 64))
+        self.account_avatar.setScaledContents(False)
+        self.account_name = DataLabel(Form)
+        self.account_name.setGeometry(QtCore.QRect(100, 0, 400, 25))
+        self.account_name.setTextInteractionFlags(QtCore.Qt.LinksAccessibleByMouse)
+        font = QtGui.QFont()
+        font.setFamily(self._settings['font'])
+        font.setPointSize(14)
+        font.setBold(True)
+        self.account_name.setFont(font)
+        self.account_status = DataLabel(Form)
+        self.account_status.setGeometry(QtCore.QRect(100, 20, 400, 25))
+        self.account_status.setTextInteractionFlags(QtCore.Qt.LinksAccessibleByMouse)
+        font.setPointSize(12)
+        font.setBold(False)
+        self.account_status.setFont(font)
+        self.account_status.setObjectName("account_status")
+        self.callButton = QtWidgets.QPushButton(Form)
+        self.callButton.setGeometry(QtCore.QRect(550, 5, 50, 50))
+        self.callButton.setObjectName("callButton")
+        self.callButton.clicked.connect(lambda: self._calls_manager.call_click(True))
+        self.videocallButton = QtWidgets.QPushButton(Form)
+        self.videocallButton.setGeometry(QtCore.QRect(550, 5, 50, 50))
+        self.videocallButton.setObjectName("videocallButton")
+        self.videocallButton.clicked.connect(lambda: self._calls_manager.call_click(True, True))
+        self.groupMenuButton = QtWidgets.QPushButton(Form)
+        self.groupMenuButton.setGeometry(QtCore.QRect(470, 10, 50, 50))
+        self.groupMenuButton.clicked.connect(self._toggle_gc_peers_list)
+        self.groupMenuButton.setVisible(False)
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'menu.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.groupMenuButton.setIcon(icon)
+        self.groupMenuButton.setIconSize(QtCore.QSize(45, 60))
+        self.update_call_state('call')
+        self.typing = QtWidgets.QLabel(Form)
+        self.typing.setGeometry(QtCore.QRect(500, 25, 50, 30))
+        pixmap = QtGui.QPixmap(QtCore.QSize(50, 30))
+        pixmap.load(util.join_path(util.get_images_directory(), 'typing.png'))
+        self.typing.setScaledContents(False)
+        self.typing.setPixmap(pixmap.scaled(50, 30, QtCore.Qt.KeepAspectRatio))
+        self.typing.setVisible(False)
+        QtCore.QMetaObject.connectSlotsByName(Form)
+
+    def setup_right_center(self, widget):
+        self.messages = QtWidgets.QListWidget(widget)
+        self.messages.setGeometry(0, 0, 620, 310)
+        self.messages.setObjectName("messages")
+        self.messages.setSpacing(1)
+        self.messages.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn)
+        self.messages.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
+        self.messages.focusOutEvent = lambda event: self.messages.clearSelection()
+        self.messages.verticalScrollBar().setContextMenuPolicy(QtCore.Qt.NoContextMenu)
+
+        def load(pos):
+            if not pos:
+                contact = self._contacts_manager.get_curr_contact()
+                self._history_loader.load_history(contact)
+                self.messages.verticalScrollBar().setValue(1)
+        self.messages.verticalScrollBar().valueChanged.connect(load)
+        self.messages.setVerticalScrollMode(QtWidgets.QAbstractItemView.ScrollPerPixel)
+        self.messages.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)
+
+        self.peers_list = QtWidgets.QListWidget(widget)
+        self.peers_list.setGeometry(0, 0, 0, 0)
+        self.peers_list.setObjectName("peersList")
+        self.peers_list.setSpacing(1)
+        self.peers_list.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
+        self.peers_list.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
+        self.peers_list.verticalScrollBar().setContextMenuPolicy(QtCore.Qt.NoContextMenu)
+        self.peers_list.setSelectionMode(QtWidgets.QAbstractItemView.NoSelection)
+
+    def initUI(self):
+        self.setMinimumSize(920, 500)
+        s = self._settings
+        self.setGeometry(s['x'], s['y'], s['width'], s['height'])
+        self.setWindowTitle('Toxygen')
+        menu = QtWidgets.QWidget()
+        main = QtWidgets.QWidget()
+        grid = QtWidgets.QGridLayout()
+        info = QtWidgets.QWidget()
+        left_column = QtWidgets.QWidget()
+        messages = QtWidgets.QWidget()
+        message_buttons = QtWidgets.QWidget()
+        self.setup_right_center(messages)
+        self.setup_right_top(info)
+        self.setup_right_bottom(message_buttons)
+        self.setup_left_column(left_column)
+        self.setup_menu(menu)
+        if not s['mirror_mode']:
+            grid.addWidget(left_column, 1, 0, 4, 1)
+            grid.addWidget(messages, 2, 1, 2, 1)
+            grid.addWidget(info, 1, 1)
+            grid.addWidget(message_buttons, 4, 1)
+            grid.setColumnMinimumWidth(1, 500)
+            grid.setColumnMinimumWidth(0, 270)
+        else:
+            grid.addWidget(left_column, 1, 1, 4, 1)
+            grid.addWidget(messages, 2, 0, 2, 1)
+            grid.addWidget(info, 1, 0)
+            grid.addWidget(message_buttons, 4, 0)
+            grid.setColumnMinimumWidth(0, 500)
+            grid.setColumnMinimumWidth(1, 270)
+
+        grid.addWidget(menu, 0, 0, 1, 2)
+        grid.setSpacing(0)
+        grid.setContentsMargins(0, 0, 0, 0)
+        grid.setRowMinimumHeight(0, 25)
+        grid.setRowMinimumHeight(1, 75)
+        grid.setRowMinimumHeight(2, 25)
+        grid.setRowMinimumHeight(3, 320)
+        grid.setRowMinimumHeight(4, 55)
+        grid.setColumnStretch(1, 1)
+        grid.setRowStretch(3, 1)
+        main.setLayout(grid)
+        self.setCentralWidget(main)
+        self.messageEdit.setFocus()
+        self.friend_info = info
+        self.retranslateUi()
+
+    def closeEvent(self, event):
+        close_setting = self._settings['close_app']
+        if close_setting == 0 or self._settings.closing:
+            if self._saved:
+                return
+            self._saved = True
+            self._settings['x'] = self.geometry().x()
+            self._settings['y'] = self.geometry().y()
+            self._settings['width'] = self.width()
+            self._settings['height'] = self.height()
+            self._settings.save()
+            util_ui.close_all_windows()
+            event.accept()
+        elif close_setting == 2 and QtWidgets.QSystemTrayIcon.isSystemTrayAvailable():
+            event.ignore()
+            self.hide()
+        else:
+            event.ignore()
+            self.showMinimized()
+
+    def close_window(self):
+        self._settings.closing = True
+        self.close()
+
+    def resizeEvent(self, *args, **kwargs):
+        width = self.width() - 270
+        if not self._should_show_group_peers_list:
+            self.messages.setGeometry(0, 0, width, self.height() - 155)
+            self.peers_list.setGeometry(0, 0, 0, 0)
+        else:
+            self.messages.setGeometry(0, 0, width * 3 // 4, self.height() - 155)
+            self.peers_list.setGeometry(width * 3 // 4, 0, width - width * 3 // 4, self.height() - 155)
+
+        invites_button_visible = self.groupInvitesPushButton.isVisible()
+        self.friends_list.setGeometry(0, 125 if invites_button_visible else 100,
+                                      270, self.height() - 150 if invites_button_visible else self.height() - 125)
+
+        self.videocallButton.setGeometry(QtCore.QRect(self.width() - 330, 10, 50, 50))
+        self.callButton.setGeometry(QtCore.QRect(self.width() - 390, 10, 50, 50))
+        self.groupMenuButton.setGeometry(QtCore.QRect(self.width() - 450, 10, 50, 50))
+        self.typing.setGeometry(QtCore.QRect(self.width() - 450, 20, 50, 30))
+
+        self.messageEdit.setGeometry(QtCore.QRect(55, 0, self.width() - 395, 55))
+        self.menuButton.setGeometry(QtCore.QRect(0, 0, 55, 55))
+        self.sendMessageButton.setGeometry(QtCore.QRect(self.width() - 340, 0, 70, 55))
+
+        self.account_name.setGeometry(QtCore.QRect(100, 15, self.width() - 560, 25))
+        self.account_status.setGeometry(QtCore.QRect(100, 35, self.width() - 560, 25))
+        self.messageEdit.setFocus()
+
+    def keyPressEvent(self, event):
+        key, modifiers = event.key(), event.modifiers()
+        if key == QtCore.Qt.Key_Escape and QtWidgets.QSystemTrayIcon.isSystemTrayAvailable():
+            self.hide()
+        elif key == QtCore.Qt.Key_C and modifiers & QtCore.Qt.ControlModifier and self.messages.selectedIndexes():
+            rows = list(map(lambda x: self.messages.row(x), self.messages.selectedItems()))
+            indexes = (rows[0] - self.messages.count(), rows[-1] - self.messages.count())
+            s = self._history_loader.export_history(self._contacts_manager.get_curr_friend(), True, indexes)
+            self.copy_text(s)
+        elif key == QtCore.Qt.Key_Z and modifiers & QtCore.Qt.ControlModifier and self.messages.selectedIndexes():
+            self.messages.clearSelection()
+        elif key == QtCore.Qt.Key_F and modifiers & QtCore.Qt.ControlModifier:
+            self.show_search_field()
+        else:
+            super().keyPressEvent(event)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Functions which called when user click in menu
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def about_program(self):
+        # TODO: replace with window
+        text = util_ui.tr('Toxygen is Tox client written on Python.\nVersion: ')
+        text += '' + '\nGitHub: https://github.com/toxygen-project/toxygen/'
+        title = util_ui.tr('About')
+        util_ui.message_box(text, title)
+
+    def network_settings(self):
+        self._modal_window = self._widget_factory.create_network_settings_window()
+        self._modal_window.show()
+
+    def plugins_menu(self):
+        self._modal_window = self._widget_factory.create_plugins_settings_window()
+        self._modal_window.show()
+
+    def add_contact_triggered(self, _):
+        self.add_contact()
+
+    def add_contact(self, link=''):
+        self._modal_window = self._widget_factory.create_add_contact_window(link)
+        self._modal_window.show()
+
+    def create_gc(self):
+        self._modal_window = self._widget_factory.create_group_screen_window()
+        self._modal_window.show()
+
+    def join_gc(self):
+        self._modal_window = self._widget_factory.create_join_group_screen_window()
+        self._modal_window.show()
+
+    def profile_settings(self, _):
+        self._modal_window = self._widget_factory.create_profile_settings_window()
+        self._modal_window.show()
+
+    def privacy_settings(self):
+        self._modal_window = self._widget_factory.create_privacy_settings_window()
+        self._modal_window.show()
+
+    def notification_settings(self):
+        self._modal_window = self._widget_factory.create_notification_settings_window()
+        self._modal_window.show()
+
+    def interface_settings(self):
+        self._modal_window = self._widget_factory.create_interface_settings_window()
+        self._modal_window.show()
+
+    def audio_settings(self):
+        self._modal_window = self._widget_factory.create_audio_settings_window()
+        self._modal_window.show()
+
+    def video_settings(self):
+        self._modal_window = self._widget_factory.create_video_settings_window()
+        self._modal_window.show()
+
+    def update_settings(self):
+        self._modal_window = self._widget_factory.create_update_settings_window()
+        self._modal_window.show()
+
+    def reload_plugins(self):
+        if self._plugin_loader is not None:
+            self._plugin_loader.reload()
+
+    @staticmethod
+    def import_plugin():
+        directory = util_ui.directory_dialog(util_ui.tr('Choose folder with plugin'))
+        if directory:
+            src = directory + '/'
+            dest = util.get_plugins_directory()
+            util.copy(src, dest)
+            util_ui.message_box(util_ui.tr('Plugin will be loaded after restart'), util_ui.tr("Restart Toxygen"))
+
+    def lock_app(self):
+        if self._toxes.has_password():
+            self._settings.locked = True
+            self.hide()
+        else:
+            util_ui.message_box(util_ui.tr('Error. Profile password is not set.'), util_ui.tr("Cannot lock app"))
+
+    def show_menu(self):
+        if not hasattr(self, 'menu'):
+            self.menu = DropdownMenu(self)
+        self.menu.setGeometry(QtCore.QRect(0 if self._settings['mirror_mode'] else 270,
+                                           self.height() - 120,
+                                           180,
+                                           120))
+        self.menu.show()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Messages, calls and file transfers
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def send_message(self):
+        self._messenger.send_message()
+
+    def send_file(self):
+        self.menu.hide()
+        if self._contacts_manager.is_active_a_friend():
+            caption = util_ui.tr('Choose file')
+            name = util_ui.file_dialog(caption)
+            if name[0]:
+                self._file_transfer_handler.send_file(name[0], self._contacts_manager.get_active_number())
+
+    def send_screenshot(self, hide=False):
+        self.menu.hide()
+        if self._contacts_manager.is_active_a_friend():
+            self.sw = self._widget_factory.create_screenshot_window(self)
+            self.sw.show()
+            if hide:
+                self.hide()
+
+    def send_smiley(self):
+        self.menu.hide()
+        if self._contacts_manager.get_curr_contact() is None:
+            return
+        self._smiley_window = self._widget_factory.create_smiley_window(self)
+        rect = QtCore.QRect(self.menu.x(),
+                            self.menu.y() - self.menu.height(),
+                            self._smiley_window.width(),
+                            self._smiley_window.height())
+        self._smiley_window.setGeometry(rect)
+        self._smiley_window.show()
+
+    def send_sticker(self):
+        self.menu.hide()
+        if self._contacts_manager.is_active_a_friend():
+            self.sticker = self._widget_factory.create_sticker_window()
+            self.sticker.setGeometry(QtCore.QRect(self.x() if self._settings['mirror_mode'] else 270 + self.x(),
+                                                  self.y() + self.height() - 200,
+                                                  self.sticker.width(),
+                                                  self.sticker.height()))
+            self.sticker.show()
+
+    def active_call(self):
+        self.update_call_state('finish_call')
+
+    def incoming_call(self):
+        self.update_call_state('incoming_call')
+
+    def call_finished(self):
+        self.update_call_state('call')
+
+    def update_call_state(self, state):
+        pixmap = QtGui.QPixmap(os.path.join(util.get_images_directory(), '{}.png'.format(state)))
+        icon = QtGui.QIcon(pixmap)
+        self.callButton.setIcon(icon)
+        self.callButton.setIconSize(QtCore.QSize(50, 50))
+
+        pixmap = QtGui.QPixmap(os.path.join(util.get_images_directory(), '{}_video.png'.format(state)))
+        icon = QtGui.QIcon(pixmap)
+        self.videocallButton.setIcon(icon)
+        self.videocallButton.setIconSize(QtCore.QSize(35, 35))
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Functions which called when user open context menu in friends list
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _friend_right_click(self, pos):
+        item = self.friends_list.itemAt(pos)
+        number = self.friends_list.indexFromItem(item).row()
+        contact = self._contacts_manager.get_contact(number)
+        if contact is None or item is None:
+            return
+        generator = contact.get_context_menu_generator()
+        self.listMenu = generator.generate(self._plugins_loader, self._contacts_manager, self, self._settings, number,
+                                           self._groups_service, self._history_loader)
+        parent_position = self.friends_list.mapToGlobal(QtCore.QPoint(0, 0))
+        self.listMenu.move(parent_position + pos)
+        self.listMenu.show()
+
+    def show_note(self, friend):
+        note = self._settings['notes'][friend.tox_id] if friend.tox_id in self._settings['notes'] else ''
+        user = util_ui.tr('Notes about user')
+        user = '{} {}'.format(user, friend.name)
+
+        def save_note(text):
+            if friend.tox_id in self._settings['notes']:
+                del self._settings['notes'][friend.tox_id]
+            if text:
+                self._settings['notes'][friend.tox_id] = text
+            self._settings.save()
+        self.note = MultilineEdit(user, note, save_note)
+        self.note.show()
+
+    def set_alias(self, num):
+        self._contacts_manager.set_alias(num)
+
+    def remove_friend(self, num):
+        self._contacts_manager.delete_friend(num)
+
+    def block_friend(self, num):
+        friend = self._contacts_manager.get_contact(num)
+        self._contacts_manager.block_user(friend.tox_id)
+
+    @staticmethod
+    def copy_text(text):
+        util_ui.copy_to_clipboard(text)
+
+    def auto_accept(self, num, value):
+        tox_id = self._contacts_manager.friend_public_key(num)
+        if value:
+            self._settings['auto_accept_from_friends'].append(tox_id)
+        else:
+            self._settings['auto_accept_from_friends'].remove(tox_id)
+        self._settings.save()
+
+    def invite_friend_to_gc(self, friend_number, group_number):
+        self._contacts_manager.invite_friend(friend_number, group_number)
+
+    def select_contact_row(self, row_index):
+        self.friends_list.setCurrentRow(row_index)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Functions which called when user click somewhere else
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _selected_contact_changed(self):
+        num = self.friends_list.currentRow()
+        if self._contacts_manager.active_contact != num:
+            self._contacts_manager.active_contact = num
+        self.groupMenuButton.setVisible(self._contacts_manager.is_active_a_group())
+
+    def mouseReleaseEvent(self, event):
+        pos = self.connection_status.pos()
+        x, y = pos.x(), pos.y() + 25
+        if (x < event.x() < x + 32) and (y < event.y() < y + 32):
+            self._profile.change_status()
+        else:
+            super().mouseReleaseEvent(event)
+
+    def _filtering(self):
+        index = self.contactsFilterComboBox.currentIndex()
+        search_text = self.searchLineEdit.text()
+        self._contacts_manager.filtration_and_sorting(index, search_text)
+
+    def show_search_field(self):
+        if hasattr(self, 'search_field') and self.search_field.isVisible():
+            return
+        if self._contacts_manager.get_curr_friend() is None:
+            return
+        self.search_field = self._widget_factory.create_search_screen(self.messages)
+        x, y = self.messages.x(), self.messages.y() + self.messages.height() - 40
+        self.search_field.setGeometry(x, y, self.messages.width(), 40)
+        self.messages.setGeometry(x, self.messages.y(), self.messages.width(), self.messages.height() - 40)
+        if self._should_show_group_peers_list:
+            self.peers_list.setFixedHeight(self.peers_list.height() - 40)
+        self.search_field.show()
+
+    def _toggle_gc_peers_list(self):
+        self._should_show_group_peers_list = not self._should_show_group_peers_list
+        self.resizeEvent()
+        if self._should_show_group_peers_list:
+            self._groups_service.generate_peers_list()
+
+    def _new_contact_selected(self, _):
+        if self._should_show_group_peers_list:
+            self._toggle_gc_peers_list()
+        index = self.friends_list.currentRow()
+        if self._contacts_manager.active_contact != index:
+            self.friends_list.setCurrentRow(self._contacts_manager.active_contact)
+        self.resizeEvent()
+
+    def _open_gc_invites_list(self):
+        self._modal_window = self._widget_factory.create_group_invites_window()
+        self._modal_window.show()
+
+    def update_gc_invites_button_state(self):
+        invites_count = self._groups_service.group_invites_count
+        self.groupInvitesPushButton.setVisible(invites_count > 0)
+        text = util_ui.tr('{} new invites to group chats').format(invites_count)
+        self.groupInvitesPushButton.setText(text)
+        self.resizeEvent()

toxygen/ui/main_screen_widgets.py

@@ -0,0 +1,496 @@
+from PyQt5 import QtCore, QtGui, QtWidgets
+from ui.widgets import RubberBandWindow, create_menu, QRightClickButton, CenteredWidget, LineEdit
+import urllib
+import re
+import utils.util as util
+import utils.ui as util_ui
+from stickers.stickers import load_stickers
+
+
+class MessageArea(QtWidgets.QPlainTextEdit):
+    """User types messages here"""
+
+    def __init__(self, parent, form):
+        super().__init__(parent)
+        self._messenger = self._contacts_manager = self._file_transfer_handler = None
+        self.parent = form
+        self.setAcceptDrops(True)
+        self._timer = QtCore.QTimer(self)
+        self._timer.timeout.connect(lambda: self._messenger.send_typing(False))
+
+    def set_dependencies(self, messenger, contacts_manager, file_transfer_handler):
+        self._messenger = messenger
+        self._contacts_manager = contacts_manager
+        self._file_transfer_handler = file_transfer_handler
+
+    def keyPressEvent(self, event):
+        if event.matches(QtGui.QKeySequence.Paste):
+            mimeData = QtWidgets.QApplication.clipboard().mimeData()
+            if mimeData.hasUrls():
+                for url in mimeData.urls():
+                    self.pasteEvent(url.toString())
+            else:
+                self.pasteEvent()
+        elif event.key() in (QtCore.Qt.Key_Return, QtCore.Qt.Key_Enter):
+            modifiers = event.modifiers()
+            if modifiers & QtCore.Qt.ControlModifier or modifiers & QtCore.Qt.ShiftModifier:
+                self.insertPlainText('\n')
+            else:
+                if self._timer.isActive():
+                    self._timer.stop()
+                self._messenger.send_typing(False)
+                self._messenger.send_message()
+        elif event.key() == QtCore.Qt.Key_Up and not self.toPlainText():
+            self.appendPlainText(self._messenger.get_last_message())
+        elif event.key() == QtCore.Qt.Key_Tab and self._contacts_manager.is_active_a_group():
+            text = self.toPlainText()
+            text_cursor = self.textCursor()
+            pos = text_cursor.position()
+            current_word = re.split("\s+", text[:pos])[-1]
+            start_index = text.rindex(current_word, 0, pos)
+            peer_name = self._contacts_manager.get_gc_peer_name(current_word)
+            self.setPlainText(text[:start_index] + peer_name + text[pos:])
+            new_pos = start_index + len(peer_name)
+            text_cursor.setPosition(new_pos, QtGui.QTextCursor.MoveAnchor)
+            self.setTextCursor(text_cursor)
+        else:
+            self._messenger.send_typing(True)
+            if self._timer.isActive():
+                self._timer.stop()
+            self._timer.start(5000)
+            super().keyPressEvent(event)
+
+    def contextMenuEvent(self, event):
+        menu = create_menu(self.createStandardContextMenu())
+        menu.exec_(event.globalPos())
+        del menu
+
+    def dragEnterEvent(self, e):
+        e.accept()
+
+    def dragMoveEvent(self, e):
+        e.accept()
+
+    def dropEvent(self, e):
+        if e.mimeData().hasFormat('text/plain') or e.mimeData().hasFormat('text/html'):
+            e.accept()
+            self.pasteEvent(e.mimeData().text())
+        elif e.mimeData().hasUrls():
+            for url in e.mimeData().urls():
+                self.pasteEvent(url.toString())
+            e.accept()
+        else:
+            e.ignore()
+
+    def pasteEvent(self, text=None):
+        text = text or QtWidgets.QApplication.clipboard().text()
+        if text.startswith('file://'):
+            if not self._contacts_manager.is_active_a_friend():
+                return
+            friend_number = self._contacts_manager.get_active_number()
+            file_path = self._parse_file_path(text)
+            self._file_transfer_handler.send_file(file_path, friend_number)
+        else:
+            self.insertPlainText(text)
+
+    @staticmethod
+    def _parse_file_path(file_name):
+        if file_name.endswith('\r\n'):
+            file_name = file_name[:-2]
+        file_name = urllib.parse.unquote(file_name)
+
+        return file_name[8 if util.get_platform() == 'Windows' else 7:]
+
+
+class ScreenShotWindow(RubberBandWindow):
+
+    def __init__(self, file_transfer_handler, contacts_manager, *args):
+        super().__init__(*args)
+        self._file_transfer_handler = file_transfer_handler
+        self._contacts_manager = contacts_manager
+
+    def closeEvent(self, *args):
+        if self.parent.isHidden():
+            self.parent.show()
+
+    def mouseReleaseEvent(self, event):
+        if self.rubberband.isVisible():
+            self.rubberband.hide()
+            rect = self.rubberband.geometry()
+            if rect.width() and rect.height():
+                screen = QtWidgets.QApplication.primaryScreen()
+                p = screen.grabWindow(0,
+                                      rect.x() + 4,
+                                      rect.y() + 4,
+                                      rect.width() - 8,
+                                      rect.height() - 8)
+                byte_array = QtCore.QByteArray()
+                buffer = QtCore.QBuffer(byte_array)
+                buffer.open(QtCore.QIODevice.WriteOnly)
+                p.save(buffer, 'PNG')
+                friend = self._contacts_manager.get_curr_contact()
+                self._file_transfer_handler.send_screenshot(bytes(byte_array.data()), friend.number)
+            self.close()
+
+
+class SmileyWindow(QtWidgets.QWidget):
+    """
+    Smiley selection window
+    """
+
+    def __init__(self, parent, smiley_loader):
+        super().__init__(parent)
+        self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
+        self._parent = parent
+        self._data = smiley_loader.get_smileys()
+
+        count = len(self._data)
+        if not count:
+            self.close()
+
+        self._page_size = int(pow(count / 8, 0.5) + 1) * 8  # smileys per page
+        if count % self._page_size == 0:
+            self._page_count = count // self._page_size
+        else:
+            self._page_count = round(count / self._page_size + 0.5)
+        self._page = -1
+        self._radio = []
+
+        for i in range(self._page_count):  # pages - radio buttons
+            elem = QtWidgets.QRadioButton(self)
+            elem.setGeometry(QtCore.QRect(i * 20 + 5, 160, 20, 20))
+            elem.clicked.connect(lambda c, t=i: self._checked(t))
+            self._radio.append(elem)
+
+        width = max(self._page_count * 20 + 30, (self._page_size + 5) * 8 // 10)
+        self.setMaximumSize(width, 200)
+        self.setMinimumSize(width, 200)
+        self._buttons = []
+
+        for i in range(self._page_size):  # buttons with smileys
+            b = QtWidgets.QPushButton(self)
+            b.setGeometry(QtCore.QRect((i // 8) * 20 + 5, (i % 8) * 20, 20, 20))
+            b.clicked.connect(lambda c, t=i: self._clicked(t))
+            self._buttons.append(b)
+        self._checked(0)
+
+    def leaveEvent(self, event):
+        self.close()
+
+    def _checked(self, pos):  # new page opened
+        self._radio[self._page].setChecked(False)
+        self._radio[pos].setChecked(True)
+        self._page = pos
+        start = self._page * self._page_size
+        for i in range(self._page_size):
+            try:
+                self._buttons[i].setVisible(True)
+                pixmap = QtGui.QPixmap(self._data[start + i][1])
+                icon = QtGui.QIcon(pixmap)
+                self._buttons[i].setIcon(icon)
+            except:
+                self._buttons[i].setVisible(False)
+
+    def _clicked(self, pos):  # smiley selected
+        pos += self._page * self._page_size
+        smiley = self._data[pos][0]
+        self._parent.messageEdit.insertPlainText(smiley)
+        self.close()
+
+
+class MenuButton(QtWidgets.QPushButton):
+
+    def __init__(self, parent, enter):
+        super().__init__(parent)
+        self.enter = enter
+
+    def enterEvent(self, event):
+        self.enter()
+        super().enterEvent(event)
+
+
+class DropdownMenu(QtWidgets.QWidget):
+
+    def __init__(self, parent):
+        super().__init__(parent)
+        self.installEventFilter(self)
+        self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
+        self.setMaximumSize(120, 120)
+        self.setMinimumSize(120, 120)
+        self.screenshotButton = QRightClickButton(self)
+        self.screenshotButton.setGeometry(QtCore.QRect(0, 60, 60, 60))
+        self.screenshotButton.setObjectName("screenshotButton")
+
+        self.fileTransferButton = QtWidgets.QPushButton(self)
+        self.fileTransferButton.setGeometry(QtCore.QRect(60, 60, 60, 60))
+        self.fileTransferButton.setObjectName("fileTransferButton")
+
+        self.smileyButton = QtWidgets.QPushButton(self)
+        self.smileyButton.setGeometry(QtCore.QRect(0, 0, 60, 60))
+
+        self.stickerButton = QtWidgets.QPushButton(self)
+        self.stickerButton.setGeometry(QtCore.QRect(60, 0, 60, 60))
+
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'file.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.fileTransferButton.setIcon(icon)
+        self.fileTransferButton.setIconSize(QtCore.QSize(50, 50))
+
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'screenshot.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.screenshotButton.setIcon(icon)
+        self.screenshotButton.setIconSize(QtCore.QSize(50, 60))
+
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'smiley.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.smileyButton.setIcon(icon)
+        self.smileyButton.setIconSize(QtCore.QSize(50, 50))
+
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'sticker.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.stickerButton.setIcon(icon)
+        self.stickerButton.setIconSize(QtCore.QSize(55, 55))
+
+        self.screenshotButton.setToolTip(util_ui.tr("Send screenshot"))
+        self.fileTransferButton.setToolTip(util_ui.tr("Send file"))
+        self.smileyButton.setToolTip(util_ui.tr("Add smiley"))
+        self.stickerButton.setToolTip(util_ui.tr("Send sticker"))
+
+        self.fileTransferButton.clicked.connect(parent.send_file)
+        self.screenshotButton.clicked.connect(parent.send_screenshot)
+        self.screenshotButton.rightClicked.connect(lambda: parent.send_screenshot(True))
+        self.smileyButton.clicked.connect(parent.send_smiley)
+        self.stickerButton.clicked.connect(parent.send_sticker)
+
+    def leaveEvent(self, event):
+        self.close()
+
+    def eventFilter(self, obj, event):
+        if event.type() == QtCore.QEvent.WindowDeactivate:
+            self.close()
+        return False
+
+
+class StickerItem(QtWidgets.QWidget):
+
+    def __init__(self, fl):
+        super().__init__()
+        self._image_label = QtWidgets.QLabel(self)
+        self.path = fl
+        self.pixmap = QtGui.QPixmap()
+        self.pixmap.load(fl)
+        if self.pixmap.width() > 150:
+            self.pixmap = self.pixmap.scaled(150, 200, QtCore.Qt.KeepAspectRatio)
+        self.setFixedSize(150, self.pixmap.height())
+        self._image_label.setPixmap(self.pixmap)
+
+
+class StickerWindow(QtWidgets.QWidget):
+    """Sticker selection window"""
+
+    def __init__(self, file_transfer_handler, contacts_manager):
+        super().__init__()
+        self._file_transfer_handler = file_transfer_handler
+        self._contacts_manager = contacts_manager
+        self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
+        self.setMaximumSize(250, 200)
+        self.setMinimumSize(250, 200)
+        self.list = QtWidgets.QListWidget(self)
+        self.list.setGeometry(QtCore.QRect(0, 0, 250, 200))
+        self._stickers = load_stickers()
+        for sticker in self._stickers:
+            item = StickerItem(sticker)
+            elem = QtWidgets.QListWidgetItem()
+            elem.setSizeHint(QtCore.QSize(250, item.height()))
+            self.list.addItem(elem)
+            self.list.setItemWidget(elem, item)
+        self.list.setVerticalScrollMode(QtWidgets.QAbstractItemView.ScrollPerPixel)
+        self.list.setSpacing(3)
+        self.list.clicked.connect(self.click)
+
+    def click(self, index):
+        num = index.row()
+        friend = self._contacts_manager.get_curr_contact()
+        self._file_transfer_handler.send_sticker(self._stickers[num], friend.number)
+        self.close()
+
+    def leaveEvent(self, event):
+        self.close()
+
+
+class WelcomeScreen(CenteredWidget):
+
+    def __init__(self, settings):
+        super().__init__()
+        self._settings = settings
+        self.setMaximumSize(250, 200)
+        self.setMinimumSize(250, 200)
+        self.center()
+        self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
+        self.text = QtWidgets.QTextBrowser(self)
+        self.text.setGeometry(QtCore.QRect(0, 0, 250, 170))
+        self.text.setOpenExternalLinks(True)
+        self.checkbox = QtWidgets.QCheckBox(self)
+        self.checkbox.setGeometry(QtCore.QRect(5, 170, 240, 30))
+        self.checkbox.setText(util_ui.tr( "Don't show again"))
+        self.setWindowTitle(util_ui.tr( 'Tip of the day'))
+        import random
+        num = random.randint(0, 10)
+        if num == 0:
+            text = util_ui.tr('Press Esc if you want hide app to tray.')
+        elif num == 1:
+            text = util_ui.tr('Right click on screenshot button hides app to tray during screenshot.')
+        elif num == 2:
+            text = util_ui.tr('You can use Tox over Tor. For more info read <a href="https://wiki.tox.chat/users/tox_over_tor_tot">this post</a>')
+        elif num == 3:
+            text = util_ui.tr('Use Settings -> Interface to customize interface.')
+        elif num == 4:
+            text = util_ui.tr('Set profile password via Profile -> Settings. Password allows Toxygen encrypt your history and settings.')
+        elif num == 5:
+            text = util_ui.tr('Since v0.1.3 Toxygen supports plugins. <a href="https://github.com/toxygen-project/toxygen/blob/master/docs/plugins.md">Read more</a>')
+        elif num == 6:
+            text = util_ui.tr('Toxygen supports faux offline messages and file transfers. Send message or file to offline friend and he will get it later.')
+        elif num == 7:
+            text = util_ui.tr('New in Toxygen 0.4.1:<br>Downloading nodes from tox.chat<br>Bug fixes')
+        elif num == 8:
+            text = util_ui.tr('Delete single message in chat: make right click on spinner or message time and choose "Delete" in menu')
+        elif num == 9:
+            text = util_ui.tr( 'Use right click on inline image to save it')
+        else:
+            text = util_ui.tr('Set new NoSpam to avoid spam friend requests: Profile -> Settings -> Set new NoSpam.')
+        self.text.setHtml(text)
+        self.checkbox.stateChanged.connect(self.not_show)
+        QtCore.QTimer.singleShot(1000, self.show)
+
+    def not_show(self):
+        self._settings['show_welcome_screen'] = False
+        self._settings.save()
+
+
+class MainMenuButton(QtWidgets.QPushButton):
+
+    def __init__(self, *args):
+        super().__init__(*args)
+        self.setObjectName("mainmenubutton")
+
+    def setText(self, text):
+        metrics = QtGui.QFontMetrics(self.font())
+        self.setFixedWidth(metrics.size(QtCore.Qt.TextSingleLine, text).width() + 20)
+        super().setText(text)
+
+
+class ClickableLabel(QtWidgets.QLabel):
+
+    clicked = QtCore.pyqtSignal()
+
+    def __init__(self, *args):
+        super().__init__(*args)
+
+    def mouseReleaseEvent(self, ev):
+        self.clicked.emit()
+
+
+class SearchScreen(QtWidgets.QWidget):
+
+    def __init__(self, contacts_manager, history_loader, messages, width, *args):
+        super().__init__(*args)
+        self._contacts_manager = contacts_manager
+        self._history_loader = history_loader
+        self.setMaximumSize(width, 40)
+        self.setMinimumSize(width, 40)
+        self._messages = messages
+
+        self.search_text = LineEdit(self)
+        self.search_text.setGeometry(0, 0, width - 160, 40)
+
+        self.search_button = ClickableLabel(self)
+        self.search_button.setGeometry(width - 160, 0, 40, 40)
+        pixmap = QtGui.QPixmap()
+        pixmap.load(util.join_path(util.get_images_directory(), 'search.png'))
+        self.search_button.setScaledContents(False)
+        self.search_button.setAlignment(QtCore.Qt.AlignCenter)
+        self.search_button.setPixmap(pixmap)
+        self.search_button.clicked.connect(self.search)
+
+        font = QtGui.QFont()
+        font.setPointSize(32)
+        font.setBold(True)
+
+        self.prev_button = QtWidgets.QPushButton(self)
+        self.prev_button.setGeometry(width - 120, 0, 40, 40)
+        self.prev_button.clicked.connect(self.prev)
+        self.prev_button.setText('\u25B2')
+
+        self.next_button = QtWidgets.QPushButton(self)
+        self.next_button.setGeometry(width - 80, 0, 40, 40)
+        self.next_button.clicked.connect(self.next)
+        self.next_button.setText('\u25BC')
+
+        self.close_button = QtWidgets.QPushButton(self)
+        self.close_button.setGeometry(width - 40, 0, 40, 40)
+        self.close_button.clicked.connect(self.close)
+        self.close_button.setText('×')
+        self.close_button.setFont(font)
+
+        font.setPointSize(18)
+        self.next_button.setFont(font)
+        self.prev_button.setFont(font)
+
+        self.retranslateUi()
+
+    def retranslateUi(self):
+        self.search_text.setPlaceholderText(util_ui.tr('Search'))
+
+    def show(self):
+        super().show()
+        self.search_text.setFocus()
+
+    def search(self):
+        self._contacts_manager.update()
+        text = self.search_text.text()
+        contact = self._contacts_manager.get_curr_contact()
+        if text and contact and util.is_re_valid(text):
+            index = contact.search_string(text)
+            self.load_messages(index)
+
+    def prev(self):
+        contact = self._contacts_manager.get_curr_contact()
+        if contact is not None:
+            index = contact.search_prev()
+            self.load_messages(index)
+
+    def next(self):
+        contact = self._contacts_manager.get_curr_contact()
+        text = self.search_text.text()
+        if contact is not None:
+            index = contact.search_next()
+            if index is not None:
+                count = self._messages.count()
+                index += count
+                item = self._messages.item(index)
+                self._messages.scrollToItem(item)
+                self._messages.itemWidget(item).select_text(text)
+            else:
+                self.not_found(text)
+
+    def load_messages(self, index):
+        text = self.search_text.text()
+        if index is not None:
+            count = self._messages.count()
+            while count + index < 0:
+                self._history_loader.load_history()
+                count = self._messages.count()
+            index += count
+            item = self._messages.item(index)
+            self._messages.scrollToItem(item)
+            self._messages.itemWidget(item).select_text(text)
+        else:
+            self.not_found(text)
+
+    def closeEvent(self, *args):
+        self._messages.setGeometry(0, 0, self._messages.width(), self._messages.height() + 40)
+        super().closeEvent(*args)
+
+    @staticmethod
+    def not_found(text):
+        util_ui.message_box(util_ui.tr('Text "{}" was not found').format(text), util_ui.tr('Not found'))

toxygen/ui/menu.py

@@ -0,0 +1,680 @@
+from PyQt5 import QtCore, QtGui, QtWidgets, uic
+from user_data.settings import *
+from utils.util import *
+from ui.widgets import CenteredWidget, DataLabel, LineEdit, RubberBandWindow
+import pyaudio
+import updater.updater as updater
+import utils.ui as util_ui
+import cv2
+
+
+class AddContact(CenteredWidget):
+    """Add contact form"""
+
+    def __init__(self, settings, contacts_manager, tox_id=''):
+        super().__init__()
+        self._settings = settings
+        self._contacts_manager = contacts_manager
+        uic.loadUi(get_views_path('add_contact_screen'), self)
+        self._update_ui(tox_id)
+        self._adding = False
+
+    def _update_ui(self, tox_id):
+        self.toxIdLineEdit = LineEdit(self)
+        self.toxIdLineEdit.setGeometry(QtCore.QRect(50, 40, 460, 30))
+        self.toxIdLineEdit.setText(tox_id)
+
+        self.messagePlainTextEdit.document().setPlainText(util_ui.tr('Hello! Please add me to your contact list.'))
+        self.addContactPushButton.clicked.connect(self._add_friend)
+        self._retranslate_ui()
+
+    def _add_friend(self):
+        if self._adding:
+            return
+        self._adding = True
+        tox_id = self.toxIdLineEdit.text().strip()
+        if tox_id.startswith('tox:'):
+            tox_id = tox_id[4:]
+        message = self.messagePlainTextEdit.toPlainText()
+        send = self._contacts_manager.send_friend_request(tox_id, message)
+        self._adding = False
+        if send is True:
+            # request was successful
+            self.close()
+        else:  # print error data
+            self.errorLabel.setText(send)
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr('Add contact'))
+        self.addContactPushButton.setText(util_ui.tr('Send request'))
+        self.toxIdLabel.setText(util_ui.tr('TOX ID:'))
+        self.messageLabel.setText(util_ui.tr('Message:'))
+        self.toxIdLineEdit.setPlaceholderText(util_ui.tr('TOX ID or public key of contact'))
+
+
+class NetworkSettings(CenteredWidget):
+    """Network settings form: UDP, Ipv6 and proxy"""
+    def __init__(self, settings, reset):
+        super().__init__()
+        self._settings = settings
+        self._reset = reset
+        uic.loadUi(get_views_path('network_settings_screen'), self)
+        self._update_ui()
+
+    def _update_ui(self):
+        self.ipLineEdit = LineEdit(self)
+        self.ipLineEdit.setGeometry(100, 280, 270, 30)
+
+        self.portLineEdit = LineEdit(self)
+        self.portLineEdit.setGeometry(100, 325, 270, 30)
+
+        self.restartCorePushButton.clicked.connect(self._restart_core)
+        self.ipv6CheckBox.setChecked(self._settings['ipv6_enabled'])
+        self.udpCheckBox.setChecked(self._settings['udp_enabled'])
+        self.proxyCheckBox.setChecked(self._settings['proxy_type'])
+        self.ipLineEdit.setText(self._settings['proxy_host'])
+        self.portLineEdit.setText(str(self._settings['proxy_port']))
+        self.httpProxyRadioButton.setChecked(self._settings['proxy_type'] == 1)
+        self.socksProxyRadioButton.setChecked(self._settings['proxy_type'] != 1)
+        self.downloadNodesCheckBox.setChecked(self._settings['download_nodes_list'])
+        self.lanCheckBox.setChecked(self._settings['lan_discovery'])
+        self._retranslate_ui()
+        self.proxyCheckBox.stateChanged.connect(lambda x: self._activate_proxy())
+        self._activate_proxy()
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr("Network settings"))
+        self.ipv6CheckBox.setText(util_ui.tr("IPv6"))
+        self.udpCheckBox.setText(util_ui.tr("UDP"))
+        self.lanCheckBox.setText(util_ui.tr("LAN"))
+        self.proxyCheckBox.setText(util_ui.tr("Proxy"))
+        self.ipLabel.setText(util_ui.tr("IP:"))
+        self.portLabel.setText(util_ui.tr("Port:"))
+        self.restartCorePushButton.setText(util_ui.tr("Restart TOX core"))
+        self.httpProxyRadioButton.setText(util_ui.tr("HTTP"))
+        self.socksProxyRadioButton.setText(util_ui.tr("Socks 5"))
+        self.downloadNodesCheckBox.setText(util_ui.tr("Download nodes list from tox.chat"))
+        self.warningLabel.setText(util_ui.tr("WARNING:\nusing proxy with enabled UDP\ncan produce IP leak"))
+
+    def _activate_proxy(self):
+        bl = self.proxyCheckBox.isChecked()
+        self.ipLineEdit.setEnabled(bl)
+        self.portLineEdit.setEnabled(bl)
+        self.httpProxyRadioButton.setEnabled(bl)
+        self.socksProxyRadioButton.setEnabled(bl)
+        self.ipLabel.setEnabled(bl)
+        self.portLabel.setEnabled(bl)
+
+    def _restart_core(self):
+        try:
+            self._settings['ipv6_enabled'] = self.ipv6CheckBox.isChecked()
+            self._settings['udp_enabled'] = self.udpCheckBox.isChecked()
+            proxy_enabled = self.proxyCheckBox.isChecked()
+            self._settings['proxy_type'] = 2 - int(self.httpProxyRadioButton.isChecked()) if proxy_enabled else 0
+            self._settings['proxy_host'] = str(self.ipLineEdit.text())
+            self._settings['proxy_port'] = int(self.portLineEdit.text())
+            self._settings['download_nodes_list'] = self.downloadNodesCheckBox.isChecked()
+            self._settings['lan_discovery'] = self.lanCheckBox.isChecked()
+            self._settings.save()
+            # recreate tox instance
+            self._reset()
+            self.close()
+        except Exception as ex:
+            log('Exception in restart: ' + str(ex))
+
+
+class PrivacySettings(CenteredWidget):
+    """Privacy settings form: history, typing notifications"""
+
+    def __init__(self, contacts_manager, settings):
+        """
+        :type contacts_manager: ContactsManager
+        """
+        super().__init__()
+        self._contacts_manager = contacts_manager
+        self._settings = settings
+        self.initUI()
+        self.center()
+
+    def initUI(self):
+        self.setObjectName("privacySettings")
+        self.resize(370, 600)
+        self.setMinimumSize(QtCore.QSize(370, 600))
+        self.setMaximumSize(QtCore.QSize(370, 600))
+        self.saveHistory = QtWidgets.QCheckBox(self)
+        self.saveHistory.setGeometry(QtCore.QRect(10, 20, 350, 22))
+        self.saveUnsentOnly = QtWidgets.QCheckBox(self)
+        self.saveUnsentOnly.setGeometry(QtCore.QRect(10, 60, 350, 22))
+
+        self.fileautoaccept = QtWidgets.QCheckBox(self)
+        self.fileautoaccept.setGeometry(QtCore.QRect(10, 100, 350, 22))
+
+        self.typingNotifications = QtWidgets.QCheckBox(self)
+        self.typingNotifications.setGeometry(QtCore.QRect(10, 140, 350, 30))
+        self.inlines = QtWidgets.QCheckBox(self)
+        self.inlines.setGeometry(QtCore.QRect(10, 180, 350, 30))
+        self.auto_path = QtWidgets.QLabel(self)
+        self.auto_path.setGeometry(QtCore.QRect(10, 230, 350, 30))
+        self.path = QtWidgets.QPlainTextEdit(self)
+        self.path.setGeometry(QtCore.QRect(10, 265, 350, 45))
+        self.change_path = QtWidgets.QPushButton(self)
+        self.change_path.setGeometry(QtCore.QRect(10, 320, 350, 30))
+        self.typingNotifications.setChecked(self._settings['typing_notifications'])
+        self.fileautoaccept.setChecked(self._settings['allow_auto_accept'])
+        self.saveHistory.setChecked(self._settings['save_history'])
+        self.inlines.setChecked(self._settings['allow_inline'])
+        self.saveUnsentOnly.setChecked(self._settings['save_unsent_only'])
+        self.saveUnsentOnly.setEnabled(self._settings['save_history'])
+        self.saveHistory.stateChanged.connect(self.update)
+        self.path.setPlainText(self._settings['auto_accept_path'] or curr_directory())
+        self.change_path.clicked.connect(self.new_path)
+        self.block_user_label = QtWidgets.QLabel(self)
+        self.block_user_label.setGeometry(QtCore.QRect(10, 360, 350, 30))
+        self.block_id = QtWidgets.QPlainTextEdit(self)
+        self.block_id.setGeometry(QtCore.QRect(10, 390, 350, 30))
+        self.block = QtWidgets.QPushButton(self)
+        self.block.setGeometry(QtCore.QRect(10, 430, 350, 30))
+        self.block.clicked.connect(lambda: self._contacts_manager.block_user(self.block_id.toPlainText()) or self.close())
+        self.blocked_users_label = QtWidgets.QLabel(self)
+        self.blocked_users_label.setGeometry(QtCore.QRect(10, 470, 350, 30))
+        self.comboBox = QtWidgets.QComboBox(self)
+        self.comboBox.setGeometry(QtCore.QRect(10, 500, 350, 30))
+        self.comboBox.addItems(self._settings['blocked'])
+        self.unblock = QtWidgets.QPushButton(self)
+        self.unblock.setGeometry(QtCore.QRect(10, 540, 350, 30))
+        self.unblock.clicked.connect(lambda: self.unblock_user())
+        self.retranslateUi()
+        QtCore.QMetaObject.connectSlotsByName(self)
+
+    def retranslateUi(self):
+        self.setWindowTitle(util_ui.tr("Privacy settings"))
+        self.saveHistory.setText(util_ui.tr("Save chat history"))
+        self.fileautoaccept.setText(util_ui.tr("Allow file auto accept"))
+        self.typingNotifications.setText(util_ui.tr("Send typing notifications"))
+        self.auto_path.setText(util_ui.tr("Auto accept default path:"))
+        self.change_path.setText(util_ui.tr("Change"))
+        self.inlines.setText(util_ui.tr("Allow inlines"))
+        self.block_user_label.setText(util_ui.tr("Block by public key:"))
+        self.blocked_users_label.setText(util_ui.tr("Blocked users:"))
+        self.unblock.setText(util_ui.tr("Unblock"))
+        self.block.setText(util_ui.tr("Block user"))
+        self.saveUnsentOnly.setText(util_ui.tr("Save unsent messages only"))
+
+    def update(self, new_state):
+        self.saveUnsentOnly.setEnabled(new_state)
+        if not new_state:
+            self.saveUnsentOnly.setChecked(False)
+
+    def unblock_user(self):
+        if not self.comboBox.count():
+            return
+        title = util_ui.tr("Add to friend list")
+        info = util_ui.tr("Do you want to add this user to friend list?")
+        reply = util_ui.question(info, title)
+        self._contacts_manager.unblock_user(self.comboBox.currentText(), reply)
+        self.close()
+
+    def closeEvent(self, event):
+        self._settings['typing_notifications'] = self.typingNotifications.isChecked()
+        self._settings['allow_auto_accept'] = self.fileautoaccept.isChecked()
+        text = util_ui.tr('History will be cleaned! Continue?')
+        title = util_ui.tr('Chat history')
+
+        if self._settings['save_history'] and not self.saveHistory.isChecked():  # clear history
+            reply = util_ui.question(text, title)
+            if reply:
+                self._history_loader.clear_history()
+                self._settings['save_history'] = self.saveHistory.isChecked()
+        else:
+            self._settings['save_history'] = self.saveHistory.isChecked()
+        if self.saveUnsentOnly.isChecked() and not self._settings['save_unsent_only']:
+            reply = util_ui.question(text, title)
+            if reply:
+                self._history_loader.clear_history(None, True)
+                self._settings['save_unsent_only'] = self.saveUnsentOnly.isChecked()
+        else:
+            self._settings['save_unsent_only'] = self.saveUnsentOnly.isChecked()
+        self._settings['auto_accept_path'] = self.path.toPlainText()
+        self._settings['allow_inline'] = self.inlines.isChecked()
+        self._settings.save()
+
+    def new_path(self):
+        directory = util_ui.directory_dialog()
+        if directory:
+            self.path.setPlainText(directory)
+
+
+class NotificationsSettings(CenteredWidget):
+    """Notifications settings form"""
+
+    def __init__(self, setttings):
+        super().__init__()
+        self._settings = setttings
+        uic.loadUi(get_views_path('notifications_settings_screen'), self)
+        self._update_ui()
+        self.center()
+
+    def closeEvent(self, *args, **kwargs):
+        self._settings['notifications'] = self.notificationsCheckBox.isChecked()
+        self._settings['sound_notifications'] = self.soundNotificationsCheckBox.isChecked()
+        self._settings['group_notifications'] = self.groupNotificationsCheckBox.isChecked()
+        self._settings['calls_sound'] = self.callsSoundCheckBox.isChecked()
+        self._settings.save()
+
+    def _update_ui(self):
+        self.notificationsCheckBox.setChecked(self._settings['notifications'])
+        self.soundNotificationsCheckBox.setChecked(self._settings['sound_notifications'])
+        self.groupNotificationsCheckBox.setChecked(self._settings['group_notifications'])
+        self.callsSoundCheckBox.setChecked(self._settings['calls_sound'])
+        self._retranslate_ui()
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr("Notifications settings"))
+        self.notificationsCheckBox.setText(util_ui.tr("Enable notifications"))
+        self.groupNotificationsCheckBox.setText(util_ui.tr("Notify about all messages in groups"))
+        self.callsSoundCheckBox.setText(util_ui.tr("Enable call\'s sound"))
+        self.soundNotificationsCheckBox.setText(util_ui.tr("Enable sound notifications"))
+
+
+class InterfaceSettings(CenteredWidget):
+    """Interface settings form"""
+
+    def __init__(self, settings, smiley_loader):
+        super().__init__()
+        self._settings = settings
+        self._smiley_loader = smiley_loader
+
+        uic.loadUi(get_views_path('interface_settings_screen'), self)
+        self._update_ui()
+        self.center()
+
+    def _update_ui(self):
+        themes = list(self._settings.built_in_themes().keys())
+        self.themeComboBox.addItems(themes)
+        theme = self._settings['theme']
+        if theme in self._settings.built_in_themes().keys():
+            index = themes.index(theme)
+        else:
+            index = 0
+        self.themeComboBox.setCurrentIndex(index)
+
+        supported_languages = sorted(Settings.supported_languages().keys(), reverse=True)
+        for key in supported_languages:
+            self.languageComboBox.insertItem(0, key)
+            if self._settings['language'] == key:
+                self.languageComboBox.setCurrentIndex(0)
+
+        smiley_packs = self._smiley_loader.get_packs_list()
+        self.smileysPackComboBox.addItems(smiley_packs)
+        try:
+            index = smiley_packs.index(self._settings['smiley_pack'])
+        except:
+            index = smiley_packs.index('default')
+        self.smileysPackComboBox.setCurrentIndex(index)
+
+        app_closing_setting = self._settings['close_app']
+        self.closeRadioButton.setChecked(app_closing_setting == 0)
+        self.hideRadioButton.setChecked(app_closing_setting == 1)
+        self.closeToTrayRadioButton.setChecked(app_closing_setting == 2)
+
+        self.compactModeCheckBox.setChecked(self._settings['compact_mode'])
+        self.showAvatarsCheckBox.setChecked(self._settings['show_avatars'])
+        self.smileysCheckBox.setChecked(self._settings['smileys'])
+
+        self.importSmileysPushButton.clicked.connect(self._import_smileys)
+        self.importStickersPushButton.clicked.connect(self._import_stickers)
+
+        self._retranslate_ui()
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr("Interface settings"))
+        self.showAvatarsCheckBox.setText(util_ui.tr("Show avatars in chat"))
+        self.themeLabel.setText(util_ui.tr("Theme:"))
+        self.languageLabel.setText(util_ui.tr("Language:"))
+        self.smileysGroupBox.setTitle(util_ui.tr("Smileys settings"))
+        self.smileysPackLabel.setText(util_ui.tr("Smiley pack:"))
+        self.smileysCheckBox.setText(util_ui.tr("Smileys"))
+        self.closeRadioButton.setText(util_ui.tr("Close app"))
+        self.hideRadioButton.setText(util_ui.tr("Hide app"))
+        self.closeToTrayRadioButton.setText(util_ui.tr("Close to tray"))
+        self.mirrorModeCheckBox.setText(util_ui.tr("Mirror mode"))
+        self.compactModeCheckBox.setText(util_ui.tr("Compact contact list"))
+        self.importSmileysPushButton.setText(util_ui.tr("Import smiley pack"))
+        self.importStickersPushButton.setText(util_ui.tr("Import sticker pack"))
+        self.appClosingGroupBox.setTitle(util_ui.tr("App closing settings"))
+
+    @staticmethod
+    def _import_stickers():
+        directory = util_ui.directory_dialog(util_ui.tr('Choose folder with sticker pack'))
+        if directory:
+            dest = join_path(get_stickers_directory(), os.path.basename(directory))
+            copy(directory, dest)
+
+    @staticmethod
+    def _import_smileys():
+        directory = util_ui.directory_dialog(util_ui.tr('Choose folder with smiley pack'))
+        if not directory:
+            return
+        src = directory + '/'
+        dest = join_path(get_smileys_directory(), os.path.basename(directory))
+        copy(src, dest)
+
+    def closeEvent(self, event):
+        app = QtWidgets.QApplication.instance()
+
+        self._settings['theme'] = str(self.themeComboBox.currentText())
+        try:
+            theme = self._settings['theme']
+            styles_path = join_path(get_styles_directory(), self._settings.built_in_themes()[theme])
+            with open(styles_path) as fl:
+                style = fl.read()
+            app.setStyleSheet(style)
+        except IsADirectoryError:
+            pass
+
+        self._settings['smileys'] = self.smileysCheckBox.isChecked()
+
+        restart = False
+        if self._settings['mirror_mode'] != self.mirrorModeCheckBox.isChecked():
+            self._settings['mirror_mode'] = self.mirrorModeCheckBox.isChecked()
+            restart = True
+
+        if self._settings['compact_mode'] != self.compactModeCheckBox.isChecked():
+            self._settings['compact_mode'] = self.compactModeCheckBox.isChecked()
+            restart = True
+
+        if self._settings['show_avatars'] != self.showAvatarsCheckBox.isChecked():
+            self._settings['show_avatars'] = self.showAvatarsCheckBox.isChecked()
+            restart = True
+
+        self._settings['smiley_pack'] = self.smileysPackComboBox.currentText()
+        self._smiley_loader.load_pack()
+
+        language = self.languageComboBox.currentText()
+        if self._settings['language'] != language:
+            self._settings['language'] = language
+            path = Settings.supported_languages()[language]
+            app.removeTranslator(app.translator)
+            app.translator.load(join_path(get_translations_directory(), path))
+            app.installTranslator(app.translator)
+
+        app_closing_setting = 0
+        if self.hideRadioButton.isChecked():
+            app_closing_setting = 1
+        elif self.closeToTrayRadioButton.isChecked():
+            app_closing_setting = 2
+        self._settings['close_app'] = app_closing_setting
+        self._settings.save()
+
+        if restart:
+            util_ui.message_box(util_ui.tr('Restart app to apply settings'), util_ui.tr('Restart required'))
+
+
+class AudioSettings(CenteredWidget):
+    """
+    Audio calls settings form
+    """
+
+    def __init__(self, settings):
+        super().__init__()
+        self._settings = settings
+        self._in_indexes = self._out_indexes = None
+        uic.loadUi(get_views_path('audio_settings_screen'), self)
+        self._update_ui()
+        self.center()
+
+    def closeEvent(self, event):
+        self._settings.audio['input'] = self._in_indexes[self.inputDeviceComboBox.currentIndex()]
+        self._settings.audio['output'] = self._out_indexes[self.outputDeviceComboBox.currentIndex()]
+        self._settings.save()
+
+    def _update_ui(self):
+        p = pyaudio.PyAudio()
+        self._in_indexes, self._out_indexes = [], []
+        for i in range(p.get_device_count()):
+            device = p.get_device_info_by_index(i)
+            if device["maxInputChannels"]:
+                self.inputDeviceComboBox.addItem(str(device["name"]))
+                self._in_indexes.append(i)
+            if device["maxOutputChannels"]:
+                self.outputDeviceComboBox.addItem(str(device["name"]))
+                self._out_indexes.append(i)
+        self.inputDeviceComboBox.setCurrentIndex(self._in_indexes.index(self._settings.audio['input']))
+        self.outputDeviceComboBox.setCurrentIndex(self._out_indexes.index(self._settings.audio['output']))
+        self._retranslate_ui()
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr("Audio settings"))
+        self.inputDeviceLabel.setText(util_ui.tr("Input device:"))
+        self.outputDeviceLabel.setText(util_ui.tr("Output device:"))
+
+
+class DesktopAreaSelectionWindow(RubberBandWindow):
+
+    def mouseReleaseEvent(self, event):
+        if self.rubberband.isVisible():
+            self.rubberband.hide()
+            rect = self.rubberband.geometry()
+            width, height = rect.width(), rect.height()
+            if width >= 8 and height >= 8:
+                self.parent.save(rect.x(), rect.y(), width - (width % 4), height - (height % 4))
+            self.close()
+
+
+class VideoSettings(CenteredWidget):
+    """
+    Audio calls settings form
+    """
+
+    def __init__(self, settings):
+        super().__init__()
+        self._settings = settings
+        uic.loadUi(get_views_path('video_settings_screen'), self)
+        self._devices = self._frame_max_sizes = None
+        self._update_ui()
+        self.center()
+        self.desktopAreaSelection = None
+
+    def closeEvent(self, event):
+        if self.deviceComboBox.currentIndex() == 0:
+            return
+        try:
+            self._settings.video['device'] = self.devices[self.input.currentIndex()]
+            text = self.resolutionComboBox.currentText()
+            self._settings.video['width'] = int(text.split(' ')[0])
+            self._settings.video['height'] = int(text.split(' ')[-1])
+            self._settings.save()
+        except Exception as ex:
+            print('Saving video  settings error: ' + str(ex))
+
+    def save(self, x, y, width, height):
+        self.desktopAreaSelection = None
+        self._settings.video['device'] = -1
+        self._settings.video['width'] = width
+        self._settings.video['height'] = height
+        self._settings.video['x'] = x
+        self._settings.video['y'] = y
+        self._settings.save()
+
+    def _update_ui(self):
+        self.deviceComboBox.currentIndexChanged.connect(self._device_changed)
+        self.selectRegionPushButton.clicked.connect(self._button_clicked)
+        self._devices = [-1]
+        screen = QtWidgets.QApplication.primaryScreen()
+        size = screen.size()
+        self._frame_max_sizes = [(size.width(), size.height())]
+        desktop = util_ui.tr("Desktop")
+        self.deviceComboBox.addItem(desktop)
+        for i in range(10):
+            v = cv2.VideoCapture(i)
+            if v.isOpened():
+                v.set(cv2.CAP_PROP_FRAME_WIDTH, 10000)
+                v.set(cv2.CAP_PROP_FRAME_HEIGHT, 10000)
+
+                width = int(v.get(cv2.CAP_PROP_FRAME_WIDTH))
+                height = int(v.get(cv2.CAP_PROP_FRAME_HEIGHT))
+                del v
+                self._devices.append(i)
+                self._frame_max_sizes.append((width, height))
+                self.deviceComboBox.addItem(util_ui.tr('Device #') + str(i))
+        try:
+            index = self._devices.index(self._settings.video['device'])
+            self.deviceComboBox.setCurrentIndex(index)
+        except:
+            print('Video devices error!')
+        self._retranslate_ui()
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr("Video settings"))
+        self.deviceLabel.setText(util_ui.tr("Device:"))
+        self.selectRegionPushButton.setText(util_ui.tr("Select region"))
+
+    def _button_clicked(self):
+        self.desktopAreaSelection = DesktopAreaSelectionWindow(self)
+
+    def _device_changed(self):
+        index = self.deviceComboBox.currentIndex()
+        self.selectRegionPushButton.setVisible(index == 0)
+        self.resolutionComboBox.setVisible(index != 0)
+        width, height = self._frame_max_sizes[index]
+        self.resolutionComboBox.clear()
+        dims = [
+            (320, 240),
+            (640, 360),
+            (640, 480),
+            (720, 480),
+            (1280, 720),
+            (1920, 1080),
+            (2560, 1440)
+        ]
+        for w, h in dims:
+            if w <= width and h <= height:
+                self.resolutionComboBox.addItem(str(w) + ' * ' + str(h))
+
+
+class PluginsSettings(CenteredWidget):
+    """
+    Plugins settings form
+    """
+
+    def __init__(self, plugin_loader):
+        super().__init__()
+        self._plugin_loader = plugin_loader
+        self._window = None
+        self.initUI()
+        self.center()
+        self.retranslateUi()
+
+    def initUI(self):
+        self.resize(400, 210)
+        self.setMinimumSize(QtCore.QSize(400, 210))
+        self.setMaximumSize(QtCore.QSize(400, 210))
+        self.comboBox = QtWidgets.QComboBox(self)
+        self.comboBox.setGeometry(QtCore.QRect(30, 10, 340, 30))
+        self.label = QtWidgets.QLabel(self)
+        self.label.setGeometry(QtCore.QRect(30, 40, 340, 90))
+        self.label.setWordWrap(True)
+        self.button = QtWidgets.QPushButton(self)
+        self.button.setGeometry(QtCore.QRect(30, 130, 340, 30))
+        self.button.clicked.connect(self.button_click)
+        self.open = QtWidgets.QPushButton(self)
+        self.open.setGeometry(QtCore.QRect(30, 170, 340, 30))
+        self.open.clicked.connect(self.open_plugin)
+        self.update_list()
+        self.comboBox.currentIndexChanged.connect(self.show_data)
+        self.show_data()
+
+    def retranslateUi(self):
+        self.setWindowTitle(util_ui.tr("Plugins"))
+        self.open.setText(util_ui.tr("Open selected plugin"))
+
+    def open_plugin(self):
+        ind = self.comboBox.currentIndex()
+        plugin = self.data[ind]
+        window = self.pl_loader.plugin_window(plugin[-1])
+        if window is not None:
+            self._window = window
+            self._window.show()
+        else:
+            util_ui.message_box(util_ui.tr('No GUI found for this plugin'), util_ui.tr('Error'))
+
+    def update_list(self):
+        self.comboBox.clear()
+        data = self._plugin_loader.get_plugins_list()
+        self.comboBox.addItems(list(map(lambda x: x[0], data)))
+        self.data = data
+
+    def show_data(self):
+        ind = self.comboBox.currentIndex()
+        if len(self.data):
+            plugin = self.data[ind]
+            descr = plugin[2] or util_ui.tr("No description available")
+            self.label.setText(descr)
+            if plugin[1]:
+                self.button.setText(util_ui.tr("Disable plugin"))
+            else:
+                self.button.setText(util_ui.tr("Enable plugin"))
+        else:
+            self.open.setVisible(False)
+            self.button.setVisible(False)
+            self.label.setText(util_ui.tr("No plugins found"))
+
+    def button_click(self):
+        ind = self.comboBox.currentIndex()
+        plugin = self.data[ind]
+        self._plugin_loader.toggle_plugin(plugin[-1])
+        plugin[1] = not plugin[1]
+        if plugin[1]:
+            self.button.setText(util_ui.tr("Disable plugin"))
+        else:
+            self.button.setText(util_ui.tr("Enable plugin"))
+
+
+class UpdateSettings(CenteredWidget):
+    """
+    Updates settings form
+    """
+
+    def __init__(self, settings, version):
+        super().__init__()
+        self._settings = settings
+        self._version = version
+        uic.loadUi(get_views_path('update_settings_screen'), self)
+        self._update_ui()
+        self.center()
+
+    def closeEvent(self, event):
+        self._settings['update'] = self.updateModeComboBox.currentIndex()
+        self._settings.save()
+
+    def _update_ui(self):
+        self.updatePushButton.clicked.connect(self._update_client)
+        self.updateModeComboBox.currentIndexChanged.connect(self._update_mode_changed)
+        self._retranslate_ui()
+        self.updateModeComboBox.setCurrentIndex(self._settings['update'])
+
+    def _update_mode_changed(self):
+        index = self.updateModeComboBox.currentIndex()
+        self.updatePushButton.setEnabled(index > 0)
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr("Update settings"))
+        self.updateModeLabel.setText(util_ui.tr("Select update mode:"))
+        self.updatePushButton.setText(util_ui.tr("Update Toxygen"))
+        self.updateModeComboBox.addItem(util_ui.tr("Disabled"))
+        self.updateModeComboBox.addItem(util_ui.tr("Manual"))
+        self.updateModeComboBox.addItem(util_ui.tr("Auto"))
+
+    def _update_client(self):
+        if not updater.connection_available():
+            util_ui.message_box(util_ui.tr('Problems with internet connection'), util_ui.tr("Error"))
+            return
+        if not updater.updater_available():
+            util_ui.message_box(util_ui.tr('Updater not found'), util_ui.tr("Error"))
+            return
+        version = updater.check_for_updates(self._version, self._settings)
+        if version is not None:
+            updater.download(version)
+            util_ui.close_all_windows()
+        else:
+            util_ui.message_box(util_ui.tr('Toxygen is up to date'), util_ui.tr("No updates found"))

toxygen/ui/messages_widgets.py

@@ -0,0 +1,449 @@
+from wrapper.toxcore_enums_and_consts import *
+import ui.widgets as widgets
+import utils.util as util
+import ui.menu as menu
+import html as h
+import re
+from ui.widgets import *
+from messenger.messages import MESSAGE_AUTHOR
+from file_transfers.file_transfers import *
+
+
+class MessageBrowser(QtWidgets.QTextBrowser):
+
+    def __init__(self, settings, message_edit, smileys_loader, plugin_loader, text, width, message_type, parent=None):
+        super().__init__(parent)
+        self.urls = {}
+        self._message_edit = message_edit
+        self._smileys_loader = smileys_loader
+        self._plugin_loader = plugin_loader
+        self._add_contact = None
+        self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
+        self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
+        self.setWordWrapMode(QtGui.QTextOption.WrapAtWordBoundaryOrAnywhere)
+        self.document().setTextWidth(width)
+        self.setOpenExternalLinks(True)
+        self.setAcceptRichText(True)
+        self.setOpenLinks(False)
+        path = smileys_loader.get_smileys_path()
+        if path is not None:
+            self.setSearchPaths([path])
+        self.document().setDefaultStyleSheet('a { color: #306EFF; }')
+        text = self.decoratedText(text)
+        if message_type != TOX_MESSAGE_TYPE['NORMAL']:
+            self.setHtml('<p style="color: #5CB3FF; font: italic; font-size: 20px;" >' + text + '</p>')
+        else:
+            self.setHtml(text)
+        font = QtGui.QFont()
+        font.setFamily(settings['font'])
+        font.setPixelSize(settings['message_font_size'])
+        font.setBold(False)
+        self.setFont(font)
+        self.resize(width, self.document().size().height())
+        self.setTextInteractionFlags(QtCore.Qt.TextSelectableByMouse | QtCore.Qt.LinksAccessibleByMouse)
+        self.anchorClicked.connect(self.on_anchor_clicked)
+
+    def contextMenuEvent(self, event):
+        menu = widgets.create_menu(self.createStandardContextMenu(event.pos()))
+        quote = menu.addAction(util_ui.tr('Quote selected text'))
+        quote.triggered.connect(self.quote_text)
+        text = self.textCursor().selection().toPlainText()
+        if not text:
+            quote.setEnabled(False)
+        else:
+            sub_menu = self._plugin_loader.get_message_menu(menu, text)
+            if len(sub_menu):
+                plugins_menu = menu.addMenu(util_ui.tr('Plugins'))
+                plugins_menu.addActions(sub_menu)
+        menu.popup(event.globalPos())
+        menu.exec_(event.globalPos())
+        del menu
+
+    def quote_text(self):
+        text = self.textCursor().selection().toPlainText()
+        if not text:
+            return
+        text = '>' + '\n>'.join(text.split('\n'))
+        if self._message_edit.toPlainText():
+            text = '\n' + text
+        self._message_edit.appendPlainText(text)
+
+    def on_anchor_clicked(self, url):
+        text = str(url.toString())
+        if text.startswith('tox:'):
+            self._add_contact = menu.AddContact(text[4:])
+            self._add_contact.show()
+        else:
+            QtGui.QDesktopServices.openUrl(url)
+        self.clearFocus()
+
+    def addAnimation(self, url, file_name):
+        movie = QtGui.QMovie(self)
+        movie.setFileName(file_name)
+        self.urls[movie] = url
+        movie.frameChanged[int].connect(lambda x: self.animate(movie))
+        movie.start()
+
+    def animate(self, movie):
+        self.document().addResource(QtGui.QTextDocument.ImageResource,
+                                    self.urls[movie],
+                                    movie.currentPixmap())
+        self.setLineWrapColumnOrWidth(self.lineWrapColumnOrWidth())
+
+    def decoratedText(self, text):
+        text = h.escape(text)  # replace < and >
+        exp = QtCore.QRegExp(
+            '('
+            '(?:\\b)((www\\.)|(http[s]?|ftp)://)'
+            '\\w+\\S+)'
+            '|(?:\\b)(file:///)([\\S| ]*)'
+            '|(?:\\b)(tox:[a-zA-Z\\d]{76}$)'
+            '|(?:\\b)(mailto:\\S+@\\S+\\.\\S+)'
+            '|(?:\\b)(tox:\\S+@\\S+)')
+        offset = exp.indexIn(text, 0)
+        while offset != -1:  # add links
+            url = exp.cap()
+            if exp.cap(2) == 'www.':
+                html = '<a href="http://{0}">{0}</a>'.format(url)
+            else:
+                html = '<a href="{0}">{0}</a>'.format(url)
+            text = text[:offset] + html + text[offset + len(exp.cap()):]
+            offset += len(html)
+            offset = exp.indexIn(text, offset)
+        arr = text.split('\n')
+        for i in range(len(arr)):  # quotes
+            if arr[i].startswith('&gt;'):
+                arr[i] = '<font color="green"><b>' + arr[i][4:] + '</b></font>'
+        text = '<br>'.join(arr)
+        text = self._smileys_loader.add_smileys_to_text(text, self)
+        return text
+
+
+class MessageItem(QtWidgets.QWidget):
+    """
+    Message in messages list
+    """
+    def __init__(self, text_message, settings, message_browser_factory_method, delete_action, parent=None):
+        QtWidgets.QWidget.__init__(self, parent)
+        self._message = text_message
+        self._delete_action = delete_action
+        self.name = widgets.DataLabel(self)
+        self.name.setGeometry(QtCore.QRect(2, 2, 95, 23))
+        self.name.setTextFormat(QtCore.Qt.PlainText)
+        font = QtGui.QFont()
+        font.setFamily(settings['font'])
+        font.setPointSize(11)
+        font.setBold(True)
+        if text_message.author is not None:
+            self.name.setFont(font)
+            self.name.setText(text_message.author.name)
+
+        self.time = QtWidgets.QLabel(self)
+        self.time.setGeometry(QtCore.QRect(parent.width() - 60, 0, 50, 25))
+        font.setPointSize(10)
+        font.setBold(False)
+        self.time.setFont(font)
+        self._time = text_message.time
+        if text_message.author and text_message.author.type == MESSAGE_AUTHOR['NOT_SENT']:
+            movie = QtGui.QMovie(util.join_path(util.get_images_directory(), 'spinner.gif'))
+            self.time.setMovie(movie)
+            movie.start()
+            self.t = True
+        else:
+            self.time.setText(util.convert_time(text_message.time))
+            self.t = False
+
+        self.message = message_browser_factory_method(text_message.text, parent.width() - 160,
+                                                      text_message.type, self)
+        if text_message.type != TOX_MESSAGE_TYPE['NORMAL']:
+            self.name.setStyleSheet("QLabel { color: #5CB3FF; }")
+            self.message.setAlignment(QtCore.Qt.AlignCenter)
+            self.time.setStyleSheet("QLabel { color: #5CB3FF; }")
+        self.message.setGeometry(QtCore.QRect(100, 0, parent.width() - 160, self.message.height()))
+        self.setFixedHeight(self.message.height())
+
+    def mouseReleaseEvent(self, event):
+        if event.button() == QtCore.Qt.RightButton and event.x() > self.time.x():
+            self.listMenu = QtWidgets.QMenu()
+            delete_item = self.listMenu.addAction(util_ui.tr('Delete message'))
+            delete_item.triggered.connect(self.delete)
+            parent_position = self.time.mapToGlobal(QtCore.QPoint(0, 0))
+            self.listMenu.move(parent_position)
+            self.listMenu.show()
+
+    def delete(self):
+        self._delete_action(self._message)
+
+    def mark_as_sent(self):
+        if self.t:
+            self.time.setText(util.convert_time(self._time))
+            self.t = False
+            return True
+        return False
+
+    def set_avatar(self, pixmap):
+        self.name.setAlignment(QtCore.Qt.AlignCenter)
+        self.message.setAlignment(QtCore.Qt.AlignVCenter)
+        self.setFixedHeight(max(self.height(), 36))
+        self.name.setFixedHeight(self.height())
+        self.message.setFixedHeight(self.height())
+        self.name.setPixmap(pixmap.scaled(30, 30, QtCore.Qt.KeepAspectRatio, QtCore.Qt.SmoothTransformation))
+
+    def select_text(self, text):
+        tmp = self.message.toHtml()
+        text = h.escape(text)
+        strings = re.findall(text, tmp, flags=re.IGNORECASE)
+        for s in strings:
+            tmp = self.replace_all(tmp, s)
+        self.message.setHtml(tmp)
+
+    @staticmethod
+    def replace_all(text, substring):
+        i, l = 0, len(substring)
+        while i < len(text) - l + 1:
+            index = text[i:].find(substring)
+            if index == -1:
+                break
+            i += index
+            lgt, rgt = text[i:].find('<'), text[i:].find('>')
+            if rgt < lgt:
+                i += rgt + 1
+                continue
+            sub = '<font color="red"><b>{}</b></font>'.format(substring)
+            text = text[:i] + sub + text[i + l:]
+            i += len(sub)
+        return text
+
+
+class FileTransferItem(QtWidgets.QListWidget):
+
+    def __init__(self, transfer_message, file_transfer_handler, settings, width, parent=None):
+
+        QtWidgets.QListWidget.__init__(self, parent)
+        self._file_transfer_handler = file_transfer_handler
+        self.resize(QtCore.QSize(width, 34))
+        if transfer_message.state == FILE_TRANSFER_STATE['CANCELLED']:
+            self.setStyleSheet('QListWidget { border: 1px solid #B40404; }')
+        elif transfer_message.state in PAUSED_FILE_TRANSFERS:
+            self.setStyleSheet('QListWidget { border: 1px solid #FF8000; }')
+        else:
+            self.setStyleSheet('QListWidget { border: 1px solid green; }')
+        self.state = transfer_message.state
+
+        self.name = DataLabel(self)
+        self.name.setGeometry(QtCore.QRect(3, 7, 95, 25))
+        self.name.setTextFormat(QtCore.Qt.PlainText)
+        font = QtGui.QFont()
+        font.setFamily(settings['font'])
+        font.setPointSize(11)
+        font.setBold(True)
+        self.name.setFont(font)
+        self.name.setText(transfer_message.author.name)
+
+        self.time = QtWidgets.QLabel(self)
+        self.time.setGeometry(QtCore.QRect(width - 60, 7, 50, 25))
+        font.setPointSize(10)
+        font.setBold(False)
+        self.time.setFont(font)
+        self.time.setText(util.convert_time(transfer_message.time))
+
+        self.cancel = QtWidgets.QPushButton(self)
+        self.cancel.setGeometry(QtCore.QRect(width - 125, 2, 30, 30))
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), 'decline.png'))
+        icon = QtGui.QIcon(pixmap)
+        self.cancel.setIcon(icon)
+        self.cancel.setIconSize(QtCore.QSize(30, 30))
+        self.cancel.setVisible(transfer_message.state in ACTIVE_FILE_TRANSFERS or
+                               transfer_message.state == FILE_TRANSFER_STATE['UNSENT'])
+        self.cancel.clicked.connect(
+            lambda: self.cancel_transfer(transfer_message.friend_number, transfer_message.file_number))
+        self.cancel.setStyleSheet('QPushButton:hover { border: 1px solid #3A3939; background-color: none;}')
+
+        self.accept_or_pause = QtWidgets.QPushButton(self)
+        self.accept_or_pause.setGeometry(QtCore.QRect(width - 170, 2, 30, 30))
+        if transfer_message.state == FILE_TRANSFER_STATE['INCOMING_NOT_STARTED']:
+            self.accept_or_pause.setVisible(True)
+            self.button_update('accept')
+        elif transfer_message.state in DO_NOT_SHOW_ACCEPT_BUTTON:
+            self.accept_or_pause.setVisible(False)
+        elif transfer_message.state == FILE_TRANSFER_STATE['PAUSED_BY_USER']:  # setup for continue
+            self.accept_or_pause.setVisible(True)
+            self.button_update('resume')
+        elif transfer_message.state == FILE_TRANSFER_STATE['UNSENT']:
+            self.accept_or_pause.setVisible(False)
+            self.setStyleSheet('QListWidget { border: 1px solid #FF8000; }')
+        else:  # pause
+            self.accept_or_pause.setVisible(True)
+            self.button_update('pause')
+        self.accept_or_pause.clicked.connect(
+            lambda: self.accept_or_pause_transfer(transfer_message.friend_number, transfer_message.file_number,
+                                                  transfer_message.size))
+
+        self.accept_or_pause.setStyleSheet('QPushButton:hover { border: 1px solid #3A3939; background-color: none}')
+
+        self.pb = QtWidgets.QProgressBar(self)
+        self.pb.setGeometry(QtCore.QRect(100, 7, 100, 20))
+        self.pb.setValue(0)
+        self.pb.setStyleSheet('QProgressBar { background-color: #302F2F; }')
+        self.pb.setVisible(transfer_message.state in SHOW_PROGRESS_BAR)
+
+        self.file_name = DataLabel(self)
+        self.file_name.setGeometry(QtCore.QRect(210, 7, width - 420, 20))
+        font.setPointSize(12)
+        self.file_name.setFont(font)
+        file_size = transfer_message.size // 1024
+        if not file_size:
+            file_size = '{}B'.format(transfer_message.size)
+        elif file_size >= 1024:
+            file_size = '{}MB'.format(file_size // 1024)
+        else:
+            file_size = '{}KB'.format(file_size)
+        file_data = '{} {}'.format(file_size, transfer_message.file_name)
+        self.file_name.setText(file_data)
+        self.file_name.setToolTip(transfer_message.file_name)
+        self.saved_name = transfer_message.file_name
+        self.time_left = QtWidgets.QLabel(self)
+        self.time_left.setGeometry(QtCore.QRect(width - 92, 7, 30, 20))
+        font.setPointSize(10)
+        self.time_left.setFont(font)
+        self.time_left.setVisible(transfer_message.state == FILE_TRANSFER_STATE['RUNNING'])
+        self.setFocusPolicy(QtCore.Qt.NoFocus)
+        self.paused = False
+
+    def cancel_transfer(self, friend_number, file_number):
+        self._file_transfer_handler.cancel_transfer(friend_number, file_number)
+        self.setStyleSheet('QListWidget { border: 1px solid #B40404; }')
+        self.cancel.setVisible(False)
+        self.accept_or_pause.setVisible(False)
+        self.pb.setVisible(False)
+
+    def accept_or_pause_transfer(self, friend_number, file_number, size):
+        if self.state == FILE_TRANSFER_STATE['INCOMING_NOT_STARTED']:
+            directory = util_ui.directory_dialog(util_ui.tr('Choose folder'))
+            self.pb.setVisible(True)
+            if directory:
+                self._file_transfer_handler.accept_transfer(directory + '/' + self.saved_name,
+                                                            friend_number, file_number, size)
+                self.button_update('pause')
+        elif self.state == FILE_TRANSFER_STATE['PAUSED_BY_USER']:  # resume
+            self.paused = False
+            self._file_transfer_handler.resume_transfer(friend_number, file_number)
+            self.button_update('pause')
+            self.state = FILE_TRANSFER_STATE['RUNNING']
+        else:  # pause
+            self.paused = True
+            self.state = FILE_TRANSFER_STATE['PAUSED_BY_USER']
+            self._file_transfer_handler.pause_transfer(friend_number, file_number)
+            self.button_update('resume')
+        self.accept_or_pause.clearFocus()
+
+    def button_update(self, path):
+        pixmap = QtGui.QPixmap(util.join_path(util.get_images_directory(), '{}.png'.format(path)))
+        icon = QtGui.QIcon(pixmap)
+        self.accept_or_pause.setIcon(icon)
+        self.accept_or_pause.setIconSize(QtCore.QSize(30, 30))
+
+    def update_transfer_state(self, state, progress, time):
+        self.pb.setValue(int(progress * 100))
+        if time + 1:
+            m, s = divmod(time, 60)
+            self.time_left.setText('{0:02d}:{1:02d}'.format(m, s))
+        if self.state != state and self.state in ACTIVE_FILE_TRANSFERS:
+            if state == FILE_TRANSFER_STATE['CANCELLED']:
+                self.setStyleSheet('QListWidget { border: 1px solid #B40404; }')
+                self.cancel.setVisible(False)
+                self.accept_or_pause.setVisible(False)
+                self.pb.setVisible(False)
+                self.state = state
+                self.time_left.setVisible(False)
+            elif state == FILE_TRANSFER_STATE['FINISHED']:
+                self.accept_or_pause.setVisible(False)
+                self.pb.setVisible(False)
+                self.cancel.setVisible(False)
+                self.setStyleSheet('QListWidget { border: 1px solid green; }')
+                self.state = state
+                self.time_left.setVisible(False)
+            elif state == FILE_TRANSFER_STATE['PAUSED_BY_FRIEND']:
+                self.accept_or_pause.setVisible(False)
+                self.setStyleSheet('QListWidget { border: 1px solid #FF8000; }')
+                self.state = state
+                self.time_left.setVisible(False)
+            elif state == FILE_TRANSFER_STATE['PAUSED_BY_USER']:
+                self.button_update('resume')  # setup button continue
+                self.setStyleSheet('QListWidget { border: 1px solid green; }')
+                self.state = state
+                self.time_left.setVisible(False)
+            elif state == FILE_TRANSFER_STATE['OUTGOING_NOT_STARTED']:
+                self.setStyleSheet('QListWidget { border: 1px solid #FF8000; }')
+                self.accept_or_pause.setVisible(False)
+                self.time_left.setVisible(False)
+                self.pb.setVisible(False)
+            elif not self.paused:  # active
+                self.pb.setVisible(True)
+                self.accept_or_pause.setVisible(True)  # setup to pause
+                self.button_update('pause')
+                self.setStyleSheet('QListWidget { border: 1px solid green; }')
+                self.state = state
+                self.time_left.setVisible(True)
+
+
+class UnsentFileItem(FileTransferItem):
+
+    def __init__(self, transfer_message, file_transfer_handler, settings, width, parent=None):
+        super().__init__(transfer_message, file_transfer_handler, settings, width, parent)
+        self._time = time
+        movie = QtGui.QMovie(util.join_path(util.get_images_directory(), 'spinner.gif'))
+        self.time.setMovie(movie)
+        movie.start()
+        self._message_id = transfer_message.message_id
+        self._friend_number = transfer_message.friend_number
+
+    def cancel_transfer(self, *args):
+        self._file_transfer_handler.cancel_not_started_transfer(self._friend_number, self._message_id)
+
+
+class InlineImageItem(QtWidgets.QScrollArea):
+
+    def __init__(self, data, width, elem, parent=None):
+
+        QtWidgets.QScrollArea.__init__(self, parent)
+        self.setFocusPolicy(QtCore.Qt.NoFocus)
+        self._elem = elem
+        self._image_label = QtWidgets.QLabel(self)
+        self._image_label.raise_()
+        self.setWidget(self._image_label)
+        self._image_label.setScaledContents(False)
+        self._pixmap = QtGui.QPixmap()
+        self._pixmap.loadFromData(data, 'PNG')
+        self._max_size = width - 30
+        self._resize_needed = not (self._pixmap.width() <= self._max_size)
+        self._full_size = not self._resize_needed
+        if not self._resize_needed:
+            self._image_label.setPixmap(self._pixmap)
+            self.resize(QtCore.QSize(self._max_size + 5, self._pixmap.height() + 5))
+            self._image_label.setGeometry(5, 0, self._pixmap.width(), self._pixmap.height())
+        else:
+            pixmap = self._pixmap.scaled(self._max_size, self._max_size, QtCore.Qt.KeepAspectRatio)
+            self._image_label.setPixmap(pixmap)
+            self.resize(QtCore.QSize(self._max_size + 5, pixmap.height()))
+            self._image_label.setGeometry(5, 0, self._max_size + 5, pixmap.height())
+        self._elem.setSizeHint(QtCore.QSize(self.width(), self.height()))
+
+    def mouseReleaseEvent(self, event):
+        if event.button() == QtCore.Qt.LeftButton and self._resize_needed:  # scale inline
+            if self._full_size:
+                pixmap = self._pixmap.scaled(self._max_size, self._max_size, QtCore.Qt.KeepAspectRatio)
+                self._image_label.setPixmap(pixmap)
+                self.resize(QtCore.QSize(self._max_size, pixmap.height()))
+                self._image_label.setGeometry(5, 0, pixmap.width(), pixmap.height())
+            else:
+                self._image_label.setPixmap(self._pixmap)
+                self.resize(QtCore.QSize(self._max_size, self._pixmap.height() + 17))
+                self._image_label.setGeometry(5, 0, self._pixmap.width(), self._pixmap.height())
+            self._full_size = not self._full_size
+            self._elem.setSizeHint(QtCore.QSize(self.width(), self.height()))
+        elif event.button() == QtCore.Qt.RightButton:  # save inline
+            directory = util_ui.directory_dialog(util_ui.tr('Choose folder'))
+            if directory:
+                fl = QtCore.QFile(directory + '/toxygen_inline_' + util.curr_time().replace(':', '_') + '.png')
+                self._pixmap.save(fl, 'PNG')

toxygen/ui/password_screen.py

@@ -0,0 +1,153 @@
+from ui.widgets import CenteredWidget, LineEdit, DialogWithResult
+from PyQt5 import QtCore, QtWidgets
+import utils.ui as util_ui
+
+
+class PasswordArea(LineEdit):
+
+    def __init__(self, parent):
+        super().__init__(parent)
+        self._parent = parent
+        self.setEchoMode(QtWidgets.QLineEdit.Password)
+
+    def keyPressEvent(self, event):
+        if event.key() == QtCore.Qt.Key_Return:
+            self._parent.button_click()
+        else:
+            super().keyPressEvent(event)
+
+
+class PasswordScreenBase(CenteredWidget, DialogWithResult):
+
+    def __init__(self, encrypt):
+        CenteredWidget.__init__(self)
+        DialogWithResult.__init__(self)
+        self._encrypt = encrypt
+        self.initUI()
+
+    def initUI(self):
+        self.resize(360, 170)
+        self.setMinimumSize(QtCore.QSize(360, 170))
+        self.setMaximumSize(QtCore.QSize(360, 170))
+
+        self.enter_pass = QtWidgets.QLabel(self)
+        self.enter_pass.setGeometry(QtCore.QRect(30, 10, 300, 30))
+
+        self.password = PasswordArea(self)
+        self.password.setGeometry(QtCore.QRect(30, 50, 300, 30))
+
+        self.button = QtWidgets.QPushButton(self)
+        self.button.setGeometry(QtCore.QRect(30, 90, 300, 30))
+        self.button.setText(util_ui.tr('OK'))
+        self.button.clicked.connect(self.button_click)
+
+        self.warning = QtWidgets.QLabel(self)
+        self.warning.setGeometry(QtCore.QRect(30, 130, 300, 30))
+        self.warning.setStyleSheet('QLabel { color: #F70D1A; }')
+        self.warning.setVisible(False)
+
+        self.retranslateUi()
+        self.center()
+        QtCore.QMetaObject.connectSlotsByName(self)
+
+    def button_click(self):
+        pass
+
+    def keyPressEvent(self, event):
+        if event.key() == QtCore.Qt.Key_Enter:
+            self.button_click()
+        else:
+            super(PasswordScreenBase, self).keyPressEvent(event)
+
+    def retranslateUi(self):
+        self.setWindowTitle(util_ui.tr('Enter password'))
+        self.enter_pass.setText(util_ui.tr('Password:'))
+        self.warning.setText(util_ui.tr('Incorrect password'))
+
+
+class PasswordScreen(PasswordScreenBase):
+
+    def __init__(self, encrypt, data):
+        super().__init__(encrypt)
+        self._data = data
+
+    def button_click(self):
+        if self.password.text():
+            try:
+                self._encrypt.set_password(self.password.text())
+                new_data = self._encrypt.pass_decrypt(self._data)
+            except Exception as ex:
+                self.warning.setVisible(True)
+                print('Decryption error:', ex)
+            else:
+                self.close_with_result(new_data)
+
+
+class UnlockAppScreen(PasswordScreenBase):
+
+    def __init__(self, encrypt, callback):
+        super(UnlockAppScreen, self).__init__(encrypt)
+        self._callback = callback
+        self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
+
+    def button_click(self):
+        if self.password.text():
+            if self._encrypt.is_password(self.password.text()):
+                self._callback()
+                self.close()
+            else:
+                self.warning.setVisible(True)
+                print('Wrong password!')
+
+
+class SetProfilePasswordScreen(CenteredWidget):
+
+    def __init__(self, encrypt):
+        super(SetProfilePasswordScreen, self).__init__()
+        self._encrypt = encrypt
+        self.initUI()
+        self.retranslateUi()
+        self.center()
+
+    def initUI(self):
+        self.setMinimumSize(QtCore.QSize(700, 200))
+        self.setMaximumSize(QtCore.QSize(700, 200))
+        self.password = LineEdit(self)
+        self.password.setGeometry(QtCore.QRect(40, 10, 300, 30))
+        self.password.setEchoMode(QtWidgets.QLineEdit.Password)
+        self.confirm_password = LineEdit(self)
+        self.confirm_password.setGeometry(QtCore.QRect(40, 50, 300, 30))
+        self.confirm_password.setEchoMode(QtWidgets.QLineEdit.Password)
+        self.set_password = QtWidgets.QPushButton(self)
+        self.set_password.setGeometry(QtCore.QRect(40, 100, 300, 30))
+        self.set_password.clicked.connect(self.new_password)
+        self.not_match = QtWidgets.QLabel(self)
+        self.not_match.setGeometry(QtCore.QRect(350, 50, 300, 30))
+        self.not_match.setVisible(False)
+        self.not_match.setStyleSheet('QLabel { color: #BC1C1C; }')
+        self.warning = QtWidgets.QLabel(self)
+        self.warning.setGeometry(QtCore.QRect(40, 160, 500, 30))
+        self.warning.setStyleSheet('QLabel { color: #BC1C1C; }')
+
+    def retranslateUi(self):
+        self.setWindowTitle(util_ui.tr('Profile password'))
+        self.password.setPlaceholderText(
+            util_ui.tr('Password (at least 8 symbols)'))
+        self.confirm_password.setPlaceholderText(
+            util_ui.tr('Confirm password'))
+        self.set_password.setText(
+            util_ui.tr('Set password'))
+        self.not_match.setText(util_ui.tr('Passwords do not match'))
+        self.warning.setText(util_ui.tr('There is no way to recover lost passwords'))
+
+    def new_password(self):
+        if self.password.text() == self.confirm_password.text():
+            if len(self.password.text()) >= 8:
+                self._encrypt.set_password(self.password.text())
+                self.close()
+            else:
+                self.not_match.setText(util_ui.tr('Password must be at least 8 symbols'))
+            self.not_match.setVisible(True)
+        else:
+            self.not_match.setText(util_ui.tr('Passwords do not match'))
+            self.not_match.setVisible(True)

toxygen/ui/peer_screen.py

@@ -0,0 +1,111 @@
+from ui.widgets import CenteredWidget
+from PyQt5 import uic
+import utils.util as util
+import utils.ui as util_ui
+from ui.contact_items import *
+import wrapper.toxcore_enums_and_consts as consts
+
+
+class PeerScreen(CenteredWidget):
+
+    def __init__(self, contacts_manager, groups_service, group, peer_id):
+        super().__init__()
+        self._contacts_manager = contacts_manager
+        self._groups_service = groups_service
+        self._group = group
+        self._peer = group.get_peer_by_id(peer_id)
+
+        self._roles = {
+            TOX_GROUP_ROLE['FOUNDER']: util_ui.tr('Administrator'),
+            TOX_GROUP_ROLE['MODERATOR']: util_ui.tr('Moderator'),
+            TOX_GROUP_ROLE['USER']: util_ui.tr('User'),
+            TOX_GROUP_ROLE['OBSERVER']: util_ui.tr('Observer')
+        }
+
+        uic.loadUi(util.get_views_path('peer_screen'), self)
+        self._update_ui()
+
+    def _update_ui(self):
+        self.statusCircle = StatusCircle(self)
+        self.statusCircle.setGeometry(50, 15, 30, 30)
+
+        self.statusCircle.update(self._peer.status)
+        self.peerNameLabel.setText(self._peer.name)
+        self.ignorePeerCheckBox.setChecked(self._peer.is_muted)
+        self.ignorePeerCheckBox.clicked.connect(self._toggle_ignore)
+        self.sendPrivateMessagePushButton.clicked.connect(self._send_private_message)
+        self.copyPublicKeyPushButton.clicked.connect(self._copy_public_key)
+        self.roleNameLabel.setText(self._get_role_name())
+        can_change_role_or_ban = self._can_change_role_or_ban()
+        self.rolesComboBox.setVisible(can_change_role_or_ban)
+        self.roleNameLabel.setVisible(not can_change_role_or_ban)
+        self.banGroupBox.setEnabled(can_change_role_or_ban)
+        self.banPushButton.clicked.connect(self._ban_peer)
+        self.kickPushButton.clicked.connect(self._kick_peer)
+
+        self._retranslate_ui()
+
+        self.rolesComboBox.currentIndexChanged.connect(self._role_set)
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr('Peer details'))
+        self.ignorePeerCheckBox.setText(util_ui.tr('Ignore peer'))
+        self.roleLabel.setText(util_ui.tr('Role:'))
+        self.copyPublicKeyPushButton.setText(util_ui.tr('Copy public key'))
+        self.sendPrivateMessagePushButton.setText(util_ui.tr('Send private message'))
+        self.banPushButton.setText(util_ui.tr('Ban peer'))
+        self.kickPushButton.setText(util_ui.tr('Kick peer'))
+        self.banGroupBox.setTitle(util_ui.tr('Ban peer'))
+        self.ipBanRadioButton.setText(util_ui.tr('IP'))
+        self.nickBanRadioButton.setText(util_ui.tr('Nickname'))
+        self.pkBanRadioButton.setText(util_ui.tr('Public key'))
+
+        self.rolesComboBox.clear()
+        index = self._group.get_self_peer().role
+        roles = list(self._roles.values())
+        for role in roles[index + 1:]:
+            self.rolesComboBox.addItem(role)
+        self.rolesComboBox.setCurrentIndex(self._peer.role - index - 1)
+
+    def _can_change_role_or_ban(self):
+        self_peer = self._group.get_self_peer()
+        if self_peer.role > TOX_GROUP_ROLE['MODERATOR']:
+            return False
+
+        return self_peer.role < self._peer.role
+
+    def _role_set(self):
+        index = self.rolesComboBox.currentIndex()
+        all_roles_count = len(self._roles)
+        diff = all_roles_count - self.rolesComboBox.count()
+        self._groups_service.set_new_peer_role(self._group, self._peer, index + diff)
+
+    def _get_role_name(self):
+        return self._roles[self._peer.role]
+
+    def _toggle_ignore(self):
+        ignore = self.ignorePeerCheckBox.isChecked()
+        self._groups_service.toggle_ignore_peer(self._group, self._peer, ignore)
+
+    def _send_private_message(self):
+        self._contacts_manager.add_group_peer(self._group, self._peer)
+        self.close()
+
+    def _copy_public_key(self):
+        util_ui.copy_to_clipboard(self._peer.public_key)
+
+    def _ban_peer(self):
+        ban_type = self._get_ban_type()
+        self._groups_service.ban_peer(self._group, self._peer.id, ban_type)
+        self.close()
+
+    def _kick_peer(self):
+        self._groups_service.kick_peer(self._group, self._peer.id)
+        self.close()
+
+    def _get_ban_type(self):
+        if self.ipBanRadioButton.isChecked():
+            return consts.TOX_GROUP_BAN_TYPE['IP_PORT']
+        elif self.nickBanRadioButton.isChecked():
+            return consts.TOX_GROUP_BAN_TYPE['NICK']
+        return consts.TOX_GROUP_BAN_TYPE['PUBLIC_KEY']

toxygen/ui/profile_settings_screen.py

@@ -0,0 +1,157 @@
+from ui.widgets import CenteredWidget
+import utils.ui as util_ui
+from utils.util import join_path, get_images_directory, get_views_path
+from user_data.settings import Settings
+from PyQt5 import QtGui, QtCore, uic
+
+
+class ProfileSettings(CenteredWidget):
+    """Form with profile settings such as name, status, TOX ID"""
+    def __init__(self, profile, profile_manager, settings, toxes):
+        super().__init__()
+        self._profile = profile
+        self._profile_manager = profile_manager
+        self._settings = settings
+        self._toxes = toxes
+        self._auto = False
+
+        uic.loadUi(get_views_path('profile_settings_screen'), self)
+
+        self._init_ui()
+        self.center()
+
+    def closeEvent(self, event):
+        self._profile.set_name(self.nameLineEdit.text())
+        self._profile.set_status_message(self.statusMessageLineEdit.text())
+        self._profile.set_status(self.statusComboBox.currentIndex())
+
+    def _init_ui(self):
+        self._auto = Settings.get_auto_profile() == self._profile_manager.get_path()
+        self.toxIdLabel.setText(self._profile.tox_id)
+        self.nameLineEdit.setText(self._profile.name)
+        self.statusMessageLineEdit.setText(self._profile.status_message)
+        self.defaultProfilePushButton.clicked.connect(self._toggle_auto_profile)
+        self.copyToxIdPushButton.clicked.connect(self._copy_tox_id)
+        self.copyPublicKeyPushButton.clicked.connect(self._copy_public_key)
+        self.changePasswordPushButton.clicked.connect(self._save_password)
+        self.exportProfilePushButton.clicked.connect(self._export_profile)
+        self.newNoSpamPushButton.clicked.connect(self._set_new_no_spam)
+        self.newAvatarPushButton.clicked.connect(self._set_avatar)
+        self.resetAvatarPushButton.clicked.connect(self._reset_avatar)
+
+        self.invalidPasswordsLabel.setVisible(False)
+
+        self._retranslate_ui()
+
+        if self._profile.status is not None:
+            self.statusComboBox.setCurrentIndex(self._profile.status)
+        else:
+            self.statusComboBox.setVisible(False)
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr("Profile settings"))
+
+        self.exportProfilePushButton.setText(util_ui.tr("Export profile"))
+        self.nameLabel.setText(util_ui.tr("Name:"))
+        self.statusLabel.setText(util_ui.tr("Status:"))
+        self.toxIdTitleLabel.setText(util_ui.tr("TOX ID:"))
+        self.copyToxIdPushButton.setText(util_ui.tr("Copy TOX ID"))
+        self.newAvatarPushButton.setText(util_ui.tr("New avatar"))
+        self.resetAvatarPushButton.setText(util_ui.tr("Reset avatar"))
+        self.newNoSpamPushButton.setText(util_ui.tr("New NoSpam"))
+        self.profilePasswordLabel.setText(util_ui.tr("Profile password"))
+        self.passwordLineEdit.setPlaceholderText(util_ui.tr("Password (at least 8 symbols)"))
+        self.confirmPasswordLineEdit.setPlaceholderText(util_ui.tr("Confirm password"))
+        self.changePasswordPushButton.setText(util_ui.tr("Set password"))
+        self.invalidPasswordsLabel.setText(util_ui.tr("Passwords do not match"))
+        self.emptyPasswordLabel.setText(util_ui.tr("Leaving blank will reset current password"))
+        self.warningLabel.setText(util_ui.tr("There is no way to recover lost passwords"))
+        self.statusComboBox.addItem(util_ui.tr("Online"))
+        self.statusComboBox.addItem(util_ui.tr("Away"))
+        self.statusComboBox.addItem(util_ui.tr("Busy"))
+        self.copyPublicKeyPushButton.setText(util_ui.tr("Copy public key"))
+
+        self._set_default_profile_button_text()
+
+    def _toggle_auto_profile(self):
+        if self._auto:
+            Settings.reset_auto_profile()
+        else:
+            Settings.set_auto_profile(self._profile_manager.get_path())
+        self._auto = not self._auto
+        self._set_default_profile_button_text()
+
+    def _set_default_profile_button_text(self):
+        if self._auto:
+            self.defaultProfilePushButton.setText(util_ui.tr("Mark as not default profile"))
+        else:
+            self.defaultProfilePushButton.setText(util_ui.tr("Mark as default profile"))
+
+    def _save_password(self):
+        password = self.passwordLineEdit.text()
+        confirm_password = self.confirmPasswordLineEdit.text()
+        if password == confirm_password:
+            if not len(password) or len(password) >= 8:
+                self._toxes.set_password(password)
+                self.close()
+            else:
+                self.invalidPasswordsLabel.setText(
+                    util_ui.tr("Password must be at least 8 symbols"))
+            self.invalidPasswordsLabel.setVisible(True)
+        else:
+            self.invalidPasswordsLabel.setText(util_ui.tr("Passwords do not match"))
+            self.invalidPasswordsLabel.setVisible(True)
+
+    def _copy_tox_id(self):
+        util_ui.copy_to_clipboard(self._profile.tox_id)
+
+        icon = self._get_accept_icon()
+        self.copyToxIdPushButton.setIcon(icon)
+        self.copyToxIdPushButton.setIconSize(QtCore.QSize(10, 10))
+
+    def _copy_public_key(self):
+        util_ui.copy_to_clipboard(self._profile.tox_id[:64])
+
+        icon = self._get_accept_icon()
+        self.copyPublicKeyPushButton.setIcon(icon)
+        self.copyPublicKeyPushButton.setIconSize(QtCore.QSize(10, 10))
+
+    def _set_new_no_spam(self):
+        self.toxIdLabel.setText(self._profile.set_new_nospam())
+
+    def _reset_avatar(self):
+        self._profile.reset_avatar(self._settings['identicons'])
+
+    def _set_avatar(self):
+        choose = util_ui.tr("Choose avatar")
+        name = util_ui.file_dialog(choose, 'Images (*.png)')
+        if not name[0]:
+            return
+        bitmap = QtGui.QPixmap(name[0])
+        bitmap.scaled(QtCore.QSize(128, 128), QtCore.Qt.KeepAspectRatio, QtCore.Qt.SmoothTransformation)
+
+        byte_array = QtCore.QByteArray()
+        buffer = QtCore.QBuffer(byte_array)
+        buffer.open(QtCore.QIODevice.WriteOnly)
+        bitmap.save(buffer, 'PNG')
+
+        self._profile.set_avatar(bytes(byte_array.data()))
+
+    def _export_profile(self):
+        directory = util_ui.directory_dialog()
+        if not directory:
+            return
+
+        reply = util_ui.question(util_ui.tr('Do you want to move your profile to this location?'),
+                                 util_ui.tr('Use new path'))
+        
+        self._settings.export(directory)
+        self._profile.export_db(directory)
+        self._profile_manager.export_profile(self._settings, directory, reply)
+
+    @staticmethod
+    def _get_accept_icon():
+        pixmap = QtGui.QPixmap(join_path(get_images_directory(), 'accept.png'))
+
+        return QtGui.QIcon(pixmap)
+

toxygen/ui/self_peer_screen.py

@@ -0,0 +1,66 @@
+from ui.widgets import CenteredWidget, LineEdit
+from PyQt5 import uic
+import utils.util as util
+import utils.ui as util_ui
+from ui.contact_items import *
+
+
+class SelfPeerScreen(CenteredWidget):
+
+    def __init__(self, contacts_manager, groups_service, group):
+        super().__init__()
+        self._contacts_manager = contacts_manager
+        self._groups_service = groups_service
+        self._group = group
+        self._peer = group.get_self_peer()
+        self._roles = {
+            TOX_GROUP_ROLE['FOUNDER']: util_ui.tr('Administrator'),
+            TOX_GROUP_ROLE['MODERATOR']: util_ui.tr('Moderator'),
+            TOX_GROUP_ROLE['USER']: util_ui.tr('User'),
+            TOX_GROUP_ROLE['OBSERVER']: util_ui.tr('Observer')
+        }
+
+        uic.loadUi(util.get_views_path('self_peer_screen'), self)
+        self._update_ui()
+
+    def _update_ui(self):
+        self.lineEdit = LineEdit(self)
+        self.lineEdit.setGeometry(140, 40, 400, 30)
+        self.lineEdit.setText(self._peer.name)
+        self.lineEdit.textChanged.connect(self._nick_changed)
+
+        self.savePushButton.clicked.connect(self._save)
+        self.copyPublicKeyPushButton.clicked.connect(self._copy_public_key)
+
+        self._retranslate_ui()
+
+        self.statusComboBox.setCurrentIndex(self._peer.status)
+
+    def _retranslate_ui(self):
+        self.setWindowTitle(util_ui.tr('Change credentials in group'))
+        self.lineEdit.setPlaceholderText(util_ui.tr('Your nickname in group'))
+        self.nameLabel.setText(util_ui.tr('Name:'))
+        self.roleLabel.setText(util_ui.tr('Role:'))
+        self.statusLabel.setText(util_ui.tr('Status:'))
+        self.copyPublicKeyPushButton.setText(util_ui.tr('Copy public key'))
+        self.savePushButton.setText(util_ui.tr('Save'))
+        self.roleNameLabel.setText(self._get_role_name())
+        self.statusComboBox.addItem(util_ui.tr('Online'))
+        self.statusComboBox.addItem(util_ui.tr('Away'))
+        self.statusComboBox.addItem(util_ui.tr('Busy'))
+
+    def _get_role_name(self):
+        return self._roles[self._peer.role]
+
+    def _nick_changed(self):
+        nick = self.lineEdit.text()
+        self.savePushButton.setEnabled(bool(nick))
+
+    def _save(self):
+        nick = self.lineEdit.text()
+        status = self.statusComboBox.currentIndex()
+        self._groups_service.set_self_info(self._group, nick, status)
+        self.close()
+
+    def _copy_public_key(self):
+        util_ui.copy_to_clipboard(self._peer.public_key)

toxygen/ui/tray.py

@@ -0,0 +1,111 @@
+from PyQt5 import QtWidgets, QtGui, QtCore
+from utils.ui import tr
+from utils.util import *
+from ui.password_screen import UnlockAppScreen
+import os.path
+
+
+class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
+
+    leftClicked = QtCore.pyqtSignal()
+
+    def __init__(self, icon, parent=None):
+        super().__init__(icon, parent)
+        self.activated.connect(self.icon_activated)
+
+    def icon_activated(self, reason):
+        if reason == QtWidgets.QSystemTrayIcon.Trigger:
+            self.leftClicked.emit()
+
+
+class Menu(QtWidgets.QMenu):
+
+    def __init__(self, settings, profile, *args):
+        super().__init__(*args)
+        self._settings = settings
+        self._profile = profile
+
+    def new_status(self, status):
+        if not self._settings.locked:
+            self._profile.set_status(status)
+            self.about_to_show_handler()
+            self.hide()
+
+    def about_to_show_handler(self):
+        status = self._profile.status
+        act = self.act
+        if status is None or self._settings.locked:
+            self.actions()[1].setVisible(False)
+        else:
+            self.actions()[1].setVisible(True)
+            act.actions()[0].setChecked(False)
+            act.actions()[1].setChecked(False)
+            act.actions()[2].setChecked(False)
+            act.actions()[status].setChecked(True)
+        self.actions()[2].setVisible(not self._settings.locked)
+
+    def languageChange(self, *args, **kwargs):
+        self.actions()[0].setText(tr('Open Toxygen'))
+        self.actions()[1].setText(tr('Set status'))
+        self.actions()[2].setText(tr('Exit'))
+        self.act.actions()[0].setText(tr('Online'))
+        self.act.actions()[1].setText(tr('Away'))
+        self.act.actions()[2].setText(tr('Busy'))
+
+
+def init_tray(profile, settings, main_screen, toxes):
+    icon = os.path.join(get_images_directory(), 'icon.png')
+    tray = SystemTrayIcon(QtGui.QIcon(icon))
+
+    menu = Menu(settings, profile)
+    show = menu.addAction(tr('Open Toxygen'))
+    sub = menu.addMenu(tr('Set status'))
+    online = sub.addAction(tr('Online'))
+    away = sub.addAction(tr('Away'))
+    busy = sub.addAction(tr('Busy'))
+    online.setCheckable(True)
+    away.setCheckable(True)
+    busy.setCheckable(True)
+    menu.act = sub
+    exit = menu.addAction(tr('Exit'))
+
+    def show_window():
+        def show():
+            if not main_screen.isActiveWindow():
+                main_screen.setWindowState(
+                    main_screen.windowState() & ~QtCore.Qt.WindowMinimized | QtCore.Qt.WindowActive)
+                main_screen.activateWindow()
+                main_screen.show()
+        if not settings.locked:
+            show()
+        else:
+            def correct_pass():
+                show()
+                settings.locked = False
+                settings.unlockScreen = False
+            if not settings.unlockScreen:
+                settings.unlockScreen = True
+                show_window.screen = UnlockAppScreen(toxes, correct_pass)
+                show_window.screen.show()
+
+    def tray_activated(reason):
+        if reason == QtWidgets.QSystemTrayIcon.DoubleClick:
+            show_window()
+
+    def close_app():
+        if not settings.locked:
+            settings.closing = True
+            main_screen.close()
+
+    show.triggered.connect(show_window)
+    exit.triggered.connect(close_app)
+    menu.aboutToShow.connect(menu.about_to_show_handler)
+    online.triggered.connect(lambda: menu.new_status(0))
+    away.triggered.connect(lambda: menu.new_status(1))
+    busy.triggered.connect(lambda: menu.new_status(2))
+
+    tray.setContextMenu(menu)
+    tray.show()
+    tray.activated.connect(tray_activated)
+
+    return tray

toxygen/ui/widgets.py

@@ -0,0 +1,197 @@
+from PyQt5 import QtCore, QtGui, QtWidgets
+import utils.ui as util_ui
+
+
+class DataLabel(QtWidgets.QLabel):
+    """
+    Label with elided text
+    """
+    def setText(self, text):
+        text = ''.join('\u25AF' if len(bytes(c, 'utf-8')) >= 4 else c for c in text)
+        metrics = QtGui.QFontMetrics(self.font())
+        text = metrics.elidedText(text, QtCore.Qt.ElideRight, self.width())
+        super().setText(text)
+
+
+class ComboBox(QtWidgets.QComboBox):
+
+    def __init__(self, *args):
+        super().__init__(*args)
+        self.view().setSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.Expanding)
+
+
+class CenteredWidget(QtWidgets.QWidget):
+
+    def __init__(self):
+        super().__init__()
+        self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
+        self.center()
+
+    def center(self):
+        qr = self.frameGeometry()
+        cp = QtWidgets.QDesktopWidget().availableGeometry().center()
+        qr.moveCenter(cp)
+        self.move(qr.topLeft())
+
+
+class DialogWithResult(QtWidgets.QWidget):
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self._result = None
+
+    def get_result(self):
+        return self._result
+
+    result = property(get_result)
+
+    def close_with_result(self, result):
+        self._result = result
+        self.close()
+
+
+class LineEdit(QtWidgets.QLineEdit):
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+    def contextMenuEvent(self, event):
+        menu = create_menu(self.createStandardContextMenu())
+        menu.exec_(event.globalPos())
+        del menu
+
+
+class QRightClickButton(QtWidgets.QPushButton):
+    """
+    Button with right click support
+    """
+
+    rightClicked = QtCore.pyqtSignal()
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+    def mousePressEvent(self, event):
+        if event.button() == QtCore.Qt.RightButton:
+            self.rightClicked.emit()
+        else:
+            super().mousePressEvent(event)
+
+
+class RubberBand(QtWidgets.QRubberBand):
+
+    def __init__(self):
+        super().__init__(QtWidgets.QRubberBand.Rectangle, None)
+        self.setPalette(QtGui.QPalette(QtCore.Qt.transparent))
+        self.pen = QtGui.QPen(QtCore.Qt.blue, 4)
+        self.pen.setStyle(QtCore.Qt.SolidLine)
+        self.painter = QtGui.QPainter()
+
+    def paintEvent(self, event):
+
+        self.painter.begin(self)
+        self.painter.setPen(self.pen)
+        self.painter.drawRect(event.rect())
+        self.painter.end()
+
+
+class RubberBandWindow(QtWidgets.QWidget):
+
+    def __init__(self, parent):
+        super().__init__()
+        self.parent = parent
+        self.setMouseTracking(True)
+        self.setWindowFlags(self.windowFlags() | QtCore.Qt.FramelessWindowHint | QtCore.Qt.WindowStaysOnTopHint)
+        self.showFullScreen()
+        self.setWindowOpacity(0.5)
+        self.rubberband = RubberBand()
+        self.rubberband.setWindowFlags(self.rubberband.windowFlags() | QtCore.Qt.FramelessWindowHint)
+        self.rubberband.setAttribute(QtCore.Qt.WA_TranslucentBackground)
+
+    def mousePressEvent(self, event):
+        self.origin = event.pos()
+        self.rubberband.setGeometry(QtCore.QRect(self.origin, QtCore.QSize()))
+        self.rubberband.show()
+        QtWidgets.QWidget.mousePressEvent(self, event)
+
+    def mouseMoveEvent(self, event):
+        if self.rubberband.isVisible():
+            self.rubberband.setGeometry(QtCore.QRect(self.origin, event.pos()).normalized())
+            left = QtGui.QRegion(QtCore.QRect(0, 0, self.rubberband.x(), self.height()))
+            right = QtGui.QRegion(QtCore.QRect(self.rubberband.x() + self.rubberband.width(), 0, self.width(), self.height()))
+            top = QtGui.QRegion(0, 0, self.width(), self.rubberband.y())
+            bottom = QtGui.QRegion(0, self.rubberband.y() + self.rubberband.height(), self.width(), self.height())
+            self.setMask(left + right + top + bottom)
+
+    def keyPressEvent(self, event):
+        if event.key() == QtCore.Qt.Key_Escape:
+            self.rubberband.setHidden(True)
+            self.close()
+        else:
+            super().keyPressEvent(event)
+
+
+def create_menu(menu):
+    """
+    :return translated menu
+    """
+    for action in menu.actions():
+        text = action.text()
+        if 'Link Location' in text:
+            text = text.replace('Copy &Link Location',
+                                util_ui.tr("Copy link location"))
+        elif '&Copy' in text:
+            text = text.replace('&Copy', util_ui.tr("Copy"))
+        elif 'All' in text:
+            text = text.replace('Select All', util_ui.tr("Select all"))
+        elif 'Delete' in text:
+            text = text.replace('Delete', util_ui.tr("Delete"))
+        elif '&Paste' in text:
+            text = text.replace('&Paste', util_ui.tr("Paste"))
+        elif 'Cu&t' in text:
+            text = text.replace('Cu&t', util_ui.tr("Cut"))
+        elif '&Undo' in text:
+            text = text.replace('&Undo', util_ui.tr("Undo"))
+        elif '&Redo' in text:
+            text = text.replace('&Redo', util_ui.tr("Redo"))
+        else:
+            menu.removeAction(action)
+            continue
+        action.setText(text)
+    return menu
+
+
+class MultilineEdit(CenteredWidget):
+
+    def __init__(self, title, text, save):
+        super(MultilineEdit, self).__init__()
+        self.resize(350, 200)
+        self.setMinimumSize(QtCore.QSize(350, 200))
+        self.setMaximumSize(QtCore.QSize(350, 200))
+        self.setWindowTitle(title)
+        self.edit = QtWidgets.QTextEdit(self)
+        self.edit.setGeometry(QtCore.QRect(0, 0, 350, 150))
+        self.edit.setText(text)
+        self.button = QtWidgets.QPushButton(self)
+        self.button.setGeometry(QtCore.QRect(0, 150, 350, 50))
+        self.button.setText(util_ui.tr("Save"))
+        self.button.clicked.connect(self.button_click)
+        self.center()
+        self.save = save
+
+    def button_click(self):
+        self.save(self.edit.toPlainText())
+        self.close()
+
+
+class LineEditWithEnterSupport(LineEdit):
+
+    def __init__(self, enter_action, parent=None):
+        super().__init__(parent)
+        self._action = enter_action
+
+    def keyPressEvent(self, event):
+        if event.key() == QtCore.Qt.Key_Return:
+            self._action()
+        else:
+            super().keyPressEvent(event)

toxygen/ui/widgets_factory.py

@@ -0,0 +1,97 @@
+from ui.main_screen_widgets import *
+from ui.menu import *
+from ui.groups_widgets import *
+from ui.peer_screen import *
+from ui.self_peer_screen import *
+from ui.group_invites_widgets import *
+from ui.group_settings_widgets import *
+from ui.group_bans_widgets import *
+from ui.profile_settings_screen import ProfileSettings
+
+
+class WidgetsFactory:
+
+    def __init__(self, settings, profile, profile_manager, contacts_manager, file_transfer_handler, smiley_loader,
+                 plugin_loader, toxes, version, groups_service, history, contacts_provider):
+        self._settings = settings
+        self._profile = profile
+        self._profile_manager = profile_manager
+        self._contacts_manager = contacts_manager
+        self._file_transfer_handler = file_transfer_handler
+        self._smiley_loader = smiley_loader
+        self._plugin_loader = plugin_loader
+        self._toxes = toxes
+        self._version = version
+        self._groups_service = groups_service
+        self._history = history
+        self._contacts_provider = contacts_provider
+
+    def create_screenshot_window(self, *args):
+        return ScreenShotWindow(self._file_transfer_handler, self._contacts_manager, *args)
+
+    def create_welcome_window(self):
+        return WelcomeScreen(self._settings)
+
+    def create_profile_settings_window(self):
+        return ProfileSettings(self._profile, self._profile_manager,  self._settings, self._toxes)
+
+    def create_network_settings_window(self):
+        return NetworkSettings(self._settings, self._profile.restart)
+
+    def create_audio_settings_window(self):
+        return AudioSettings(self._settings)
+
+    def create_video_settings_window(self):
+        return VideoSettings(self._settings)
+
+    def create_update_settings_window(self):
+        return UpdateSettings(self._settings, self._version)
+
+    def create_plugins_settings_window(self):
+        return PluginsSettings(self._plugin_loader)
+
+    def create_add_contact_window(self, tox_id):
+        return AddContact(self._settings, self._contacts_manager, tox_id)
+
+    def create_privacy_settings_window(self):
+        return PrivacySettings(self._contacts_manager, self._settings)
+
+    def create_interface_settings_window(self):
+        return InterfaceSettings(self._settings, self._smiley_loader)
+
+    def create_notification_settings_window(self):
+        return NotificationsSettings(self._settings)
+
+    def create_smiley_window(self, parent):
+        return SmileyWindow(parent, self._smiley_loader)
+
+    def create_sticker_window(self):
+        return StickerWindow(self._file_transfer_handler, self._contacts_manager)
+
+    def create_group_screen_window(self):
+        return CreateGroupScreen(self._groups_service, self._profile)
+
+    def create_join_group_screen_window(self):
+        return JoinGroupScreen(self._groups_service, self._profile)
+
+    def create_search_screen(self, messages):
+        return SearchScreen(self._contacts_manager, self._history, messages, messages.parent())
+
+    def create_peer_screen_window(self, group, peer_id):
+        return PeerScreen(self._contacts_manager, self._groups_service, group, peer_id)
+
+    def create_self_peer_screen_window(self, group):
+        return SelfPeerScreen(self._contacts_manager, self._groups_service, group)
+
+    def create_group_invites_window(self):
+        return GroupInvitesScreen(self._groups_service, self._profile, self._contacts_provider)
+
+    def create_group_management_screen(self, group):
+        return GroupManagementScreen(self._groups_service, group)
+
+    @staticmethod
+    def create_group_settings_screen(group):
+        return GroupSettingsScreen(group)
+
+    def create_groups_bans_screen(self, group):
+        return GroupBansScreen(self._groups_service, group)

toxygen/updater/updater.py

@@ -0,0 +1,124 @@
+import utils.util as util
+import utils.ui as util_ui
+import os
+import platform
+import urllib
+from PyQt5 import QtNetwork, QtCore
+import subprocess
+
+
+def connection_available():
+    try:
+        urllib.request.urlopen('http://216.58.192.142', timeout=1)  # google.com
+        return True
+    except:
+        return False
+
+
+def updater_available():
+    if is_from_sources():
+        return os.path.exists(util.curr_directory() + '/toxygen_updater.py')
+    elif platform.system() == 'Windows':
+        return os.path.exists(util.curr_directory() + '/toxygen_updater.exe')
+    else:
+        return os.path.exists(util.curr_directory() + '/toxygen_updater')
+
+
+def check_for_updates(current_version, settings):
+    major, minor, patch = list(map(lambda x: int(x), current_version.split('.')))
+    versions = generate_versions(major, minor, patch)
+    for version in versions:
+        if send_request(version, settings):
+            return version
+    return None  # no new version was found
+
+
+def is_from_sources():
+    return __file__.endswith('.py')
+
+
+def test_url(version):
+    return 'https://github.com/toxygen-project/toxygen/releases/tag/v' + version
+
+
+def get_url(version):
+    if is_from_sources():
+        return 'https://github.com/toxygen-project/toxygen/archive/v' + version + '.zip'
+    else:
+        if platform.system() == 'Windows':
+            name = 'toxygen_windows.zip'
+        elif util.is_64_bit():
+            name = 'toxygen_linux_64.tar.gz'
+        else:
+            name = 'toxygen_linux.tar.gz'
+        return 'https://github.com/toxygen-project/toxygen/releases/download/v{}/{}'.format(version, name)
+
+
+def get_params(url, version):
+    if is_from_sources():
+        if platform.system() == 'Windows':
+            return ['python', 'toxygen_updater.py', url, version]
+        else:
+            return ['python3', 'toxygen_updater.py', url, version]
+    elif platform.system() == 'Windows':
+        return [util.curr_directory() + '/toxygen_updater.exe', url, version]
+    else:
+        return ['./toxygen_updater', url, version]
+
+
+def download(version):
+    os.chdir(util.curr_directory())
+    url = get_url(version)
+    params = get_params(url, version)
+    print('Updating Toxygen')
+    util.log('Updating Toxygen')
+    try:
+        subprocess.Popen(params)
+    except Exception as ex:
+        util.log('Exception: running updater failed with ' + str(ex))
+
+
+def send_request(version, settings):
+    netman = QtNetwork.QNetworkAccessManager()
+    proxy = QtNetwork.QNetworkProxy()
+    if settings['proxy_type']:
+        proxy.setType(QtNetwork.QNetworkProxy.Socks5Proxy if settings['proxy_type'] == 2 else QtNetwork.QNetworkProxy.HttpProxy)
+        proxy.setHostName(settings['proxy_host'])
+        proxy.setPort(settings['proxy_port'])
+        netman.setProxy(proxy)
+    url = test_url(version)
+    try:
+        request = QtNetwork.QNetworkRequest()
+        request.setUrl(QtCore.QUrl(url))
+        reply = netman.get(request)
+        while not reply.isFinished():
+            QtCore.QThread.msleep(1)
+            QtCore.QCoreApplication.processEvents()
+        attr = reply.attribute(QtNetwork.QNetworkRequest.HttpStatusCodeAttribute)
+        return attr is not None and 200 <= attr < 300
+    except Exception as ex:
+        util.log('TOXYGEN UPDATER ERROR: ' + str(ex))
+        return False
+
+
+def generate_versions(major, minor, patch):
+    new_major = '.'.join([str(major + 1), '0', '0'])
+    new_minor = '.'.join([str(major), str(minor + 1), '0'])
+    new_patch = '.'.join([str(major), str(minor), str(patch + 1)])
+    return new_major, new_minor, new_patch
+
+
+def start_update_if_needed(version, settings):
+    updating = False
+    if settings['update'] and updater_available() and connection_available():  # auto update
+        version = check_for_updates(version, settings)
+        if version is not None:
+            if settings['update'] == 2:
+                download(version)
+                updating = True
+            else:
+                reply = util_ui.question(util_ui.tr('Update for Toxygen was found. Download and install it?'))
+                if reply:
+                    download(version)
+                    updating = True
+    return updating

toxygen/user_data/backup_service.py

@@ -0,0 +1,40 @@
+import os.path
+from utils.util import get_profile_name_from_path, join_path
+
+
+class BackupService:
+
+    def __init__(self, settings, profile_manager):
+        self._settings = settings
+        self._profile_name = get_profile_name_from_path(profile_manager.get_path())
+
+        settings.settings_saved_event.add_callback(self._settings_saved)
+        profile_manager.profile_saved_event.add_callback(self._profile_saved)
+
+    def _settings_saved(self, data):
+        if not self._check_if_should_save_backup():
+            return
+
+        file_path = join_path(self._get_backup_directory(), self._profile_name + '.json')
+
+        with open(file_path, 'wt') as fl:
+            fl.write(data)
+
+    def _profile_saved(self, data):
+        if not self._check_if_should_save_backup():
+            return
+
+        file_path = join_path(self._get_backup_directory(), self._profile_name + '.tox')
+
+        with open(file_path, 'wb') as fl:
+            fl.write(data)
+
+    def _check_if_should_save_backup(self):
+        backup_directory = self._get_backup_directory()
+        if backup_directory is None:
+            return False
+
+        return os.path.exists(backup_directory) and os.path.isdir(backup_directory)
+
+    def _get_backup_directory(self):
+        return self._settings['backup_directory']

toxygen/user_data/profile_manager.py

@@ -0,0 +1,90 @@
+import utils.util as util
+import os
+from user_data.settings import Settings
+from common.event import Event
+
+
+class ProfileManager:
+    """
+    Class with methods for search, load and save profiles
+    """
+    def __init__(self, toxes, path):
+        self._toxes = toxes
+        self._path = path
+        self._directory = os.path.dirname(path)
+        self._profile_saved_event = Event()
+        # create /avatars if not exists:
+        avatars_directory = util.join_path(self._directory, 'avatars')
+        if not os.path.exists(avatars_directory):
+            os.makedirs(avatars_directory)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Properties
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_profile_saved_event(self):
+        return self._profile_saved_event
+
+    profile_saved_event = property(get_profile_saved_event)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Public methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def open_profile(self):
+        with open(self._path, 'rb') as fl:
+            data = fl.read()
+        if data:
+            return data
+        else:
+            raise IOError('Save file has zero size!')
+
+    def get_dir(self):
+        return self._directory
+
+    def get_path(self):
+        return self._path
+
+    def save_profile(self, data):
+        if self._toxes.has_password():
+            data = self._toxes.pass_encrypt(data)
+        with open(self._path, 'wb') as fl:
+            fl.write(data)
+        print('Profile saved successfully')
+
+        self._profile_saved_event(data)
+
+    def export_profile(self, settings, new_path, use_new_path):
+        path = new_path + os.path.basename(self._path)
+        with open(self._path, 'rb') as fin:
+            data = fin.read()
+        with open(path, 'wb') as fout:
+            fout.write(data)
+        print('Profile exported successfully')
+        util.copy(self._directory + 'avatars', new_path + 'avatars')
+        if use_new_path:
+            self._path = new_path + os.path.basename(self._path)
+            self._directory = new_path
+            settings.update_path(new_path)
+
+    @staticmethod
+    def find_profiles():
+        """
+        Find available tox profiles
+        """
+        path = Settings.get_default_path()
+        result = []
+        # check default path
+        if not os.path.exists(path):
+            os.makedirs(path)
+        for fl in os.listdir(path):
+            if fl.endswith('.tox'):
+                name = fl[:-4]
+                result.append((path, name))
+        path = util.get_base_directory(__file__)
+        # check current directory
+        for fl in os.listdir(path):
+            if fl.endswith('.tox'):
+                name = fl[:-4]
+                result.append((path + '/', name))
+        return result

toxygen/user_data/settings.py

@@ -0,0 +1,244 @@
+import json
+from utils.util import *
+import pyaudio
+from common.event import Event
+
+
+class Settings(dict):
+    """
+    Settings of current profile + global app settings
+    """
+
+    def __init__(self, toxes, path):
+        self._path = path
+        self._profile_path = path.replace('.json', '.tox')
+        self._toxes = toxes
+        self._settings_saved_event = Event()
+        if os.path.isfile(path):
+            with open(path, 'rb') as fl:
+                data = fl.read()
+            try:
+                if toxes.is_data_encrypted(data):
+                    data = toxes.pass_decrypt(data)
+                info = json.loads(str(data, 'utf-8'))
+            except Exception as ex:
+                info = Settings.get_default_settings()
+                log('Parsing settings error: ' + str(ex))
+            super().__init__(info)
+            self._upgrade()
+        else:
+            super().__init__(Settings.get_default_settings())
+        self.save()
+        self.locked = False
+        self.closing = False
+        self.unlockScreen = False
+        p = pyaudio.PyAudio()
+        input_devices = output_devices = 0
+        for i in range(p.get_device_count()):
+            device = p.get_device_info_by_index(i)
+            if device["maxInputChannels"]:
+                input_devices += 1
+            if device["maxOutputChannels"]:
+                output_devices += 1
+        self.audio = {'input': p.get_default_input_device_info()['index'] if input_devices else -1,
+                      'output': p.get_default_output_device_info()['index'] if output_devices else -1,
+                      'enabled': input_devices and output_devices}
+        self.video = {'device': -1, 'width': 640, 'height': 480, 'x': 0, 'y': 0}
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Properties
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def get_settings_saved_event(self):
+        return self._settings_saved_event
+
+    settings_saved_event = property(get_settings_saved_event)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Public methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def save(self):
+        text = json.dumps(self)
+        if self._toxes.has_password():
+            text = bytes(self._toxes.pass_encrypt(bytes(text, 'utf-8')))
+        else:
+            text = bytes(text, 'utf-8')
+        with open(self._path, 'wb') as fl:
+            fl.write(text)
+
+        self._settings_saved_event(text)
+
+    def close(self):
+        path = self._profile_path + '.lock'
+        if os.path.isfile(path):
+            os.remove(path)
+
+    def set_active_profile(self):
+        """
+        Mark current profile as active
+        """
+        path = self._profile_path + '.lock'
+        with open(path, 'w') as fl:
+            fl.write('active')
+
+    def export(self, path):
+        text = json.dumps(self)
+        name = os.path.basename(self._path)
+        with open(join_path(path, str(name)), 'w') as fl:
+            fl.write(text)
+
+    def update_path(self, new_path):
+        self._path = new_path
+        self.save()
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Static methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    @staticmethod
+    def get_auto_profile():
+        p = Settings.get_global_settings_path()
+        if not os.path.isfile(p):
+            return None
+        with open(p) as fl:
+            data = fl.read()
+        try:
+            auto = json.loads(data)
+        except Exception as ex:
+            log(str(ex))
+            auto = {}
+        if 'profile_path' in auto:
+            path = str(auto['profile_path'])
+            if not os.path.isabs(path):
+                path = join_path(path, curr_directory(__file__))
+            if os.path.isfile(path):
+                return path
+
+    @staticmethod
+    def set_auto_profile(path):
+        p = Settings.get_global_settings_path()
+        if os.path.isfile(p):
+            with open(p) as fl:
+                data = fl.read()
+            data = json.loads(data)
+        else:
+            data = {}
+        data['profile_path'] = str(path)
+        with open(p, 'w') as fl:
+            fl.write(json.dumps(data))
+
+    @staticmethod
+    def reset_auto_profile():
+        p = Settings.get_global_settings_path()
+        if os.path.isfile(p):
+            with open(p) as fl:
+                data = fl.read()
+            data = json.loads(data)
+        else:
+            data = {}
+        if 'profile_path' in data:
+            del data['profile_path']
+        with open(p, 'w') as fl:
+            fl.write(json.dumps(data))
+
+    @staticmethod
+    def is_active_profile(profile_path):
+        return os.path.isfile(profile_path + '.lock')
+
+    @staticmethod
+    def get_default_settings():
+        """
+        Default profile settings
+        """
+        return {
+            'theme': 'dark',
+            'ipv6_enabled': False,
+            'udp_enabled': True,
+            'proxy_type': 0,
+            'proxy_host': '127.0.0.1',
+            'proxy_port': 9050,
+            'start_port': 0,
+            'end_port': 0,
+            'tcp_port': 0,
+            'notifications': True,
+            'sound_notifications': False,
+            'language': 'English',
+            'save_history': False,
+            'allow_inline': True,
+            'allow_auto_accept': True,
+            'auto_accept_path': None,
+            'sorting': 0,
+            'auto_accept_from_friends': [],
+            'paused_file_transfers': {},
+            'resend_files': True,
+            'friends_aliases': [],
+            'show_avatars': False,
+            'typing_notifications': False,
+            'calls_sound': True,
+            'blocked': [],
+            'plugins': [],
+            'notes': {},
+            'smileys': True,
+            'smiley_pack': 'default',
+            'mirror_mode': False,
+            'width': 920,
+            'height': 500,
+            'x': 400,
+            'y': 400,
+            'message_font_size': 14,
+            'unread_color': 'red',
+            'save_unsent_only': False,
+            'compact_mode': False,
+            'identicons': True,
+            'show_welcome_screen': True,
+            'close_app': 0,
+            'font': 'Times New Roman',
+            'update': 1,
+            'group_notifications': True,
+            'download_nodes_list': False,
+            'notify_all_gc': False,
+            'lan_discovery': True,
+            'backup_directory': None
+        }
+
+    @staticmethod
+    def supported_languages():
+        return {
+            'English': 'en_EN',
+            'French': 'fr_FR',
+            'Russian': 'ru_RU',
+            'Ukrainian': 'uk_UA'
+        }
+
+    @staticmethod
+    def built_in_themes():
+        return {
+            'dark': 'dark_style.qss',
+            'default': 'style.qss'
+        }
+
+    @staticmethod
+    def get_global_settings_path():
+        return os.path.join(get_base_directory(), 'toxygen.json')
+
+    @staticmethod
+    def get_default_path():
+        system = get_platform()
+        if system == 'Windows':
+            return os.getenv('APPDATA') + '/Tox/'
+        elif system == 'Darwin':
+            return os.getenv('HOME') + '/Library/Application Support/Tox/'
+        else:
+            return os.getenv('HOME') + '/.config/tox/'
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Private methods
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def _upgrade(self):
+        default = Settings.get_default_settings()
+        for key in default:
+            if key not in self:
+                print(key)
+                self[key] = default[key]

toxygen/user_data/toxes.py

@@ -0,0 +1,24 @@
+
+class ToxES:
+
+    def __init__(self, tox_encrypt_save):
+        self._tox_encrypt_save = tox_encrypt_save
+        self._password = None
+
+    def set_password(self, password):
+        self._password = password
+
+    def has_password(self):
+        return bool(self._password)
+
+    def is_password(self, password):
+        return self._password == password
+
+    def is_data_encrypted(self, data):
+        return len(data) > 0 and self._tox_encrypt_save.is_data_encrypted(data)
+
+    def pass_encrypt(self, data):
+        return self._tox_encrypt_save.pass_encrypt(data, self._password)
+
+    def pass_decrypt(self, data):
+        return self._tox_encrypt_save.pass_decrypt(data, self._password)

toxygen/utils/ui.py

@@ -0,0 +1,54 @@
+from PyQt5 import QtWidgets
+import utils.util as util
+
+
+def tr(s):
+    return QtWidgets.QApplication.translate('Toxygen', s)
+
+
+def question(text, title=None):
+    reply = QtWidgets.QMessageBox.question(None, title or 'Toxygen', text,
+                                           QtWidgets.QMessageBox.Yes,
+                                           QtWidgets.QMessageBox.No)
+    return reply == QtWidgets.QMessageBox.Yes
+
+
+def message_box(text, title=None):
+    m_box = QtWidgets.QMessageBox()
+    m_box.setText(tr(text))
+    m_box.setWindowTitle(title or 'Toxygen')
+    m_box.exec_()
+
+
+def text_dialog(text, title='', default_value=''):
+    text, ok = QtWidgets.QInputDialog.getText(None, title, text, QtWidgets.QLineEdit.Normal, default_value)
+
+    return text, ok
+
+
+def directory_dialog(caption=''):
+    return QtWidgets.QFileDialog.getExistingDirectory(None, caption, util.curr_directory(),
+                                                      QtWidgets.QFileDialog.DontUseNativeDialog)
+
+
+def file_dialog(caption, file_filter=None):
+    return QtWidgets.QFileDialog.getOpenFileName(None, caption, util.curr_directory(), file_filter,
+                                                 options=QtWidgets.QFileDialog.DontUseNativeDialog)
+
+
+def save_file_dialog(caption, filter=None):
+    return QtWidgets.QFileDialog.getSaveFileName(None, caption, util.curr_directory(),
+                                                 filter=filter,
+                                                 options=QtWidgets.QFileDialog.ShowDirsOnly | QtWidgets.QFileDialog.DontUseNativeDialog)
+
+
+def close_all_windows():
+    QtWidgets.QApplication.closeAllWindows()
+
+
+def copy_to_clipboard(text):
+    clipboard = QtWidgets.QApplication.clipboard()
+    clipboard.setText(text)
+
+
+# TODO: all dialogs

toxygen/utils/util.py

@@ -0,0 +1,170 @@
+import os
+import time
+import shutil
+import sys
+import re
+import platform
+import datetime
+
+
+def cached(func):
+    saved_result = None
+
+    def wrapped_func():
+        nonlocal saved_result
+        if saved_result is None:
+            saved_result = func()
+
+        return saved_result
+
+    return wrapped_func
+
+
+def log(data):
+    try:
+        with open(join_path(curr_directory(), 'logs.log'), 'a') as fl:
+            fl.write(str(data) + '\n')
+    except Exception as ex:
+        print(ex)
+
+
+def curr_directory(current_file=None):
+    return os.path.dirname(os.path.realpath(current_file or __file__))
+
+
+def get_base_directory(current_file=None):
+    return os.path.dirname(curr_directory(current_file or __file__))
+
+
+@cached
+def get_images_directory():
+    return get_app_directory('images')
+
+
+@cached
+def get_styles_directory():
+    return get_app_directory('styles')
+
+
+@cached
+def get_sounds_directory():
+    return get_app_directory('sounds')
+
+
+@cached
+def get_stickers_directory():
+    return get_app_directory('stickers')
+
+
+@cached
+def get_smileys_directory():
+    return get_app_directory('smileys')
+
+
+@cached
+def get_translations_directory():
+    return get_app_directory('translations')
+
+
+@cached
+def get_plugins_directory():
+    return get_app_directory('plugins')
+
+
+@cached
+def get_libs_directory():
+    return get_app_directory('libs')
+
+
+def get_app_directory(directory_name):
+    return os.path.join(get_base_directory(), directory_name)
+
+
+def get_profile_name_from_path(path):
+    return os.path.basename(path)[:-4]
+
+
+def get_views_path(view_name):
+    ui_folder = os.path.join(get_base_directory(), 'ui')
+    views_folder = os.path.join(ui_folder, 'views')
+
+    return os.path.join(views_folder, view_name + '.ui')
+
+
+def curr_time():
+    return time.strftime('%H:%M')
+
+
+def get_unix_time():
+    return int(time.time())
+
+
+def join_path(a, b):
+    return os.path.join(a, b)
+
+
+def file_exists(file_path):
+    return os.path.exists(file_path)
+
+
+def copy(src, dest):
+    if not os.path.exists(dest):
+        os.makedirs(dest)
+    src_files = os.listdir(src)
+    for file_name in src_files:
+        full_file_name = os.path.join(src, file_name)
+        if os.path.isfile(full_file_name):
+            shutil.copy(full_file_name, dest)
+        else:
+            copy(full_file_name, os.path.join(dest, file_name))
+
+
+def remove(folder):
+    if os.path.isdir(folder):
+        shutil.rmtree(folder)
+
+
+def convert_time(t):
+    offset = time.timezone + time_offset() * 60
+    sec = int(t) - offset
+    m, s = divmod(sec, 60)
+    h, m = divmod(m, 60)
+    d, h = divmod(h, 24)
+    return '%02d:%02d' % (h, m)
+
+
+@cached
+def time_offset():
+    hours = int(time.strftime('%H'))
+    minutes = int(time.strftime('%M'))
+    sec = int(time.time()) - time.timezone
+    m, s = divmod(sec, 60)
+    h, m = divmod(m, 60)
+    d, h = divmod(h, 24)
+    result = hours * 60 + minutes - h * 60 - m
+    return result
+
+
+def unix_time_to_long_str(unix_time):
+    date_time = datetime.datetime.utcfromtimestamp(unix_time)
+
+    return date_time.strftime('%Y-%m-%d %H:%M:%S')
+
+
+@cached
+def is_64_bit():
+    return sys.maxsize > 2 ** 32
+
+
+def is_re_valid(regex):
+    try:
+        re.compile(regex)
+    except re.error:
+        return False
+    else:
+        return True
+
+
+@cached
+def get_platform():
+    return platform.system()

toxygen/wrapper/libtox.py

@@ -0,0 +1,61 @@
+from ctypes import CDLL
+import utils.util as util
+
+
+class LibToxCore:
+
+    def __init__(self):
+        platform = util.get_platform()
+        if platform == 'Windows':
+            self._libtoxcore = CDLL(util.join_path(util.get_libs_directory(), 'libtox.dll'))
+        elif platform == 'Darwin':
+            self._libtoxcore = CDLL('libtoxcore.dylib')
+        else:
+            # libtoxcore and libsodium must be installed in your os
+            try:
+                self._libtoxcore = CDLL('libtoxcore.so')
+            except:
+                self._libtoxcore = CDLL(util.join_path(util.get_libs_directory(), 'libtoxcore.so'))
+
+    def __getattr__(self, item):
+        return self._libtoxcore.__getattr__(item)
+
+
+class LibToxAV:
+
+    def __init__(self):
+        platform = util.get_platform()
+        if platform == 'Windows':
+            # on Windows av api is in libtox.dll
+            self._libtoxav = CDLL(util.join_path(util.get_libs_directory(), 'libtox.dll'))
+        elif platform == 'Darwin':
+            self._libtoxav = CDLL('libtoxcore.dylib')
+        else:
+            # /usr/lib/libtoxcore.so must exists
+            try:
+                self._libtoxav = CDLL('libtoxcore.so')
+            except:
+                self._libtoxav = CDLL(util.join_path(util.get_libs_directory(), 'libtoxcore.so'))
+
+    def __getattr__(self, item):
+        return self._libtoxav.__getattr__(item)
+
+
+class LibToxEncryptSave:
+
+    def __init__(self):
+        platform = util.get_platform()
+        if platform == 'Windows':
+            # on Windows profile encryption api is in libtox.dll
+            self._lib_tox_encrypt_save = CDLL(util.join_path(util.get_libs_directory(), 'libtox.dll'))
+        elif platform == 'Darwin':
+            self._lib_tox_encrypt_save = CDLL('libtoxcore.dylib')
+        else:
+            # /usr/lib/libtoxcore.so must exists
+            try:
+                self._lib_tox_encrypt_save = CDLL('libtoxcore.so')
+            except:
+                self._lib_tox_encrypt_save = CDLL(util.join_path(util.get_libs_directory(), 'libtoxcore.so'))
+
+    def __getattr__(self, item):
+        return self._lib_tox_encrypt_save.__getattr__(item)

toxygen/wrapper/toxav.py

@@ -0,0 +1,363 @@
+from ctypes import c_int, POINTER, c_void_p, byref, ArgumentError, c_uint32, CFUNCTYPE, c_size_t, c_uint8, c_uint16
+from ctypes import c_char_p, c_int32, c_bool, cast
+from wrapper.libtox import LibToxAV
+from wrapper.toxav_enums import *
+
+
+class ToxAV:
+    """
+    The ToxAV instance type. Each ToxAV instance can be bound to only one Tox instance, and Tox instance can have only
+    one ToxAV instance. One must make sure to close ToxAV instance prior closing Tox instance otherwise undefined
+    behaviour occurs. Upon closing of ToxAV instance, all active calls will be forcibly terminated without notifying
+    peers.
+    """
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Creation and destruction
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def __init__(self, tox_pointer):
+        """
+        Start new A/V session. There can only be only one session per Tox instance.
+
+        :param tox_pointer: pointer to Tox instance
+        """
+        self.libtoxav = LibToxAV()
+        toxav_err_new = c_int()
+        f = self.libtoxav.toxav_new
+        f.restype = POINTER(c_void_p)
+        self._toxav_pointer = f(tox_pointer, byref(toxav_err_new))
+        toxav_err_new = toxav_err_new.value
+        if toxav_err_new == TOXAV_ERR_NEW['NULL']:
+            raise ArgumentError('One of the arguments to the function was NULL when it was not expected.')
+        elif toxav_err_new == TOXAV_ERR_NEW['MALLOC']:
+            raise MemoryError('Memory allocation failure while trying to allocate structures required for the A/V '
+                              'session.')
+        elif toxav_err_new == TOXAV_ERR_NEW['MULTIPLE']:
+            raise RuntimeError('Attempted to create a second session for the same Tox instance.')
+
+        self.call_state_cb = None
+        self.audio_receive_frame_cb = None
+        self.video_receive_frame_cb = None
+        self.call_cb = None
+
+    def kill(self):
+        """
+        Releases all resources associated with the A/V session.
+
+        If any calls were ongoing, these will be forcibly terminated without notifying peers. After calling this
+        function, no other functions may be called and the av pointer becomes invalid.
+        """
+        self.libtoxav.toxav_kill(self._toxav_pointer)
+
+    def get_tox_pointer(self):
+        """
+        Returns the Tox instance the A/V object was created for.
+
+        :return: pointer to the Tox instance
+        """
+        self.libtoxav.toxav_get_tox.restype = POINTER(c_void_p)
+        return self.libtoxav.toxav_get_tox(self._toxav_pointer)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # A/V event loop
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def iteration_interval(self):
+        """
+        Returns the interval in milliseconds when the next toxav_iterate call should be. If no call is active at the
+        moment, this function returns 200.
+
+        :return: interval in milliseconds
+        """
+        return self.libtoxav.toxav_iteration_interval(self._toxav_pointer)
+
+    def iterate(self):
+        """
+        Main loop for the session. This function needs to be called in intervals of toxav_iteration_interval()
+        milliseconds. It is best called in the separate thread from tox_iterate.
+        """
+        self.libtoxav.toxav_iterate(self._toxav_pointer)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Call setup
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def call(self, friend_number, audio_bit_rate, video_bit_rate):
+        """
+        Call a friend. This will start ringing the friend.
+
+        It is the client's responsibility to stop ringing after a certain timeout, if such behaviour is desired. If the
+        client does not stop ringing, the library will not stop until the friend is disconnected. Audio and video
+        receiving are both enabled by default.
+
+        :param friend_number: The friend number of the friend that should be called.
+        :param audio_bit_rate: Audio bit rate in Kb/sec. Set this to 0 to disable audio sending.
+        :param video_bit_rate: Video bit rate in Kb/sec. Set this to 0 to disable video sending.
+        :return: True on success.
+        """
+        toxav_err_call = c_int()
+        result = self.libtoxav.toxav_call(self._toxav_pointer, c_uint32(friend_number), c_uint32(audio_bit_rate),
+                                           c_uint32(video_bit_rate), byref(toxav_err_call))
+        toxav_err_call = toxav_err_call.value
+        if toxav_err_call == TOXAV_ERR_CALL['OK']:
+            return bool(result)
+        elif toxav_err_call == TOXAV_ERR_CALL['MALLOC']:
+            raise MemoryError('A resource allocation error occurred while trying to create the structures required for '
+                              'the call.')
+        elif toxav_err_call == TOXAV_ERR_CALL['SYNC']:
+            raise RuntimeError('Synchronization error occurred.')
+        elif toxav_err_call == TOXAV_ERR_CALL['FRIEND_NOT_FOUND']:
+            raise ArgumentError('The friend number did not designate a valid friend.')
+        elif toxav_err_call == TOXAV_ERR_CALL['FRIEND_NOT_CONNECTED']:
+            raise ArgumentError('The friend was valid, but not currently connected.')
+        elif toxav_err_call == TOXAV_ERR_CALL['FRIEND_ALREADY_IN_CALL']:
+            raise ArgumentError('Attempted to call a friend while already in an audio or video call with them.')
+        elif toxav_err_call == TOXAV_ERR_CALL['INVALID_BIT_RATE']:
+            raise ArgumentError('Audio or video bit rate is invalid.')
+
+    def callback_call(self, callback, user_data):
+        """
+        Set the callback for the `call` event. Pass None to unset.
+
+        :param callback: The function for the call callback.
+
+        Should take pointer (c_void_p) to ToxAV object,
+        The friend number (c_uint32) from which the call is incoming.
+        True (c_bool) if friend is sending audio.
+        True (c_bool) if friend is sending video.
+        pointer (c_void_p) to user_data
+        :param user_data: pointer (c_void_p) to user data
+        """
+        c_callback = CFUNCTYPE(None, c_void_p, c_uint32, c_bool, c_bool, c_void_p)
+        self.call_cb = c_callback(callback)
+        self.libtoxav.toxav_callback_call(self._toxav_pointer, self.call_cb, user_data)
+
+    def answer(self, friend_number, audio_bit_rate, video_bit_rate):
+        """
+        Accept an incoming call.
+
+        If answering fails for any reason, the call will still be pending and it is possible to try and answer it later.
+        Audio and video receiving are both enabled by default.
+
+        :param friend_number: The friend number of the friend that is calling.
+        :param audio_bit_rate: Audio bit rate in Kb/sec. Set this to 0 to disable audio sending.
+        :param video_bit_rate: Video bit rate in Kb/sec. Set this to 0 to disable video sending.
+        :return: True on success.
+        """
+        toxav_err_answer = c_int()
+        result = self.libtoxav.toxav_answer(self._toxav_pointer, c_uint32(friend_number), c_uint32(audio_bit_rate),
+                                             c_uint32(video_bit_rate), byref(toxav_err_answer))
+        toxav_err_answer = toxav_err_answer.value
+        if toxav_err_answer == TOXAV_ERR_ANSWER['OK']:
+            return bool(result)
+        elif toxav_err_answer == TOXAV_ERR_ANSWER['SYNC']:
+            raise RuntimeError('Synchronization error occurred.')
+        elif toxav_err_answer == TOXAV_ERR_ANSWER['CODEC_INITIALIZATION']:
+            raise RuntimeError('Failed to initialize codecs for call session. Note that codec initiation will fail if '
+                               'there is no receive callback registered for either audio or video.')
+        elif toxav_err_answer == TOXAV_ERR_ANSWER['FRIEND_NOT_FOUND']:
+            raise ArgumentError('The friend number did not designate a valid friend.')
+        elif toxav_err_answer == TOXAV_ERR_ANSWER['FRIEND_NOT_CALLING']:
+            raise ArgumentError('The friend was valid, but they are not currently trying to initiate a call. This is '
+                                'also returned if this client is already in a call with the friend.')
+        elif toxav_err_answer == TOXAV_ERR_ANSWER['INVALID_BIT_RATE']:
+            raise ArgumentError('Audio or video bit rate is invalid.')
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Call state graph
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def callback_call_state(self, callback, user_data):
+        """
+        Set the callback for the `call_state` event. Pass None to unset.
+
+        :param callback: Python function.
+        The function for the call_state callback.
+
+        Should take pointer (c_void_p) to ToxAV object,
+        The friend number (c_uint32) for which the call state changed.
+        The bitmask of the new call state which is guaranteed to be different than the previous state. The state is set
+        to 0 when the call is paused. The bitmask represents all the activities currently performed by the friend.
+        pointer (c_void_p) to user_data
+        :param user_data: pointer (c_void_p) to user data
+        """
+        c_callback = CFUNCTYPE(None, c_void_p, c_uint32, c_uint32, c_void_p)
+        self.call_state_cb = c_callback(callback)
+        self.libtoxav.toxav_callback_call_state(self._toxav_pointer, self.call_state_cb, user_data)
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # Call control
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def call_control(self, friend_number, control):
+        """
+        Sends a call control command to a friend.
+
+        :param friend_number: The friend number of the friend this client is in a call with.
+        :param control: The control command to send.
+        :return: True on success.
+        """
+        toxav_err_call_control = c_int()
+        result = self.libtoxav.toxav_call_control(self._toxav_pointer, c_uint32(friend_number), c_int(control),
+                                                   byref(toxav_err_call_control))
+        toxav_err_call_control = toxav_err_call_control.value
+        if toxav_err_call_control == TOXAV_ERR_CALL_CONTROL['OK']:
+            return bool(result)
+        elif toxav_err_call_control == TOXAV_ERR_CALL_CONTROL['SYNC']:
+            raise RuntimeError('Synchronization error occurred.')
+        elif toxav_err_call_control == TOXAV_ERR_CALL_CONTROL['FRIEND_NOT_FOUND']:
+            raise ArgumentError('The friend_number passed did not designate a valid friend.')
+        elif toxav_err_call_control == TOXAV_ERR_CALL_CONTROL['FRIEND_NOT_IN_CALL']:
+            raise RuntimeError('This client is currently not in a call with the friend. Before the call is answered, '
+                               'only CANCEL is a valid control.')
+        elif toxav_err_call_control == TOXAV_ERR_CALL_CONTROL['INVALID_TRANSITION']:
+            raise RuntimeError('Happens if user tried to pause an already paused call or if trying to resume a call '
+                               'that is not paused.')
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # TODO Controlling bit rates
+    # -----------------------------------------------------------------------------------------------------------------
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # A/V sending
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def audio_send_frame(self, friend_number, pcm, sample_count, channels, sampling_rate):
+        """
+        Send an audio frame to a friend.
+
+        The expected format of the PCM data is: [s1c1][s1c2][...][s2c1][s2c2][...]...
+        Meaning: sample 1 for channel 1, sample 1 for channel 2, ...
+        For mono audio, this has no meaning, every sample is subsequent. For stereo, this means the expected format is
+        LRLRLR... with samples for left and right alternating.
+
+        :param friend_number: The friend number of the friend to which to send an audio frame.
+        :param pcm: An array of audio samples. The size of this array must be sample_count * channels.
+        :param sample_count: Number of samples in this frame. Valid numbers here are
+        ((sample rate) * (audio length) / 1000), where audio length can be 2.5, 5, 10, 20, 40 or 60 milliseconds.
+        :param channels: Number of audio channels. Sulpported values are 1 and 2.
+        :param sampling_rate: Audio sampling rate used in this frame. Valid sampling rates are 8000, 12000, 16000,
+        24000, or 48000.
+        """
+        toxav_err_send_frame = c_int()
+        result = self.libtoxav.toxav_audio_send_frame(self._toxav_pointer, c_uint32(friend_number),
+                                                       cast(pcm, c_void_p),
+                                                       c_size_t(sample_count), c_uint8(channels),
+                                                       c_uint32(sampling_rate), byref(toxav_err_send_frame))
+        toxav_err_send_frame = toxav_err_send_frame.value
+        if toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['OK']:
+            return bool(result)
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['NULL']:
+            raise ArgumentError('The samples data pointer was NULL.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['FRIEND_NOT_FOUND']:
+            raise ArgumentError('The friend_number passed did not designate a valid friend.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['FRIEND_NOT_IN_CALL']:
+            raise RuntimeError('This client is currently not in a call with the friend.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['SYNC']:
+            raise RuntimeError('Synchronization error occurred.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['INVALID']:
+            raise ArgumentError('One of the frame parameters was invalid. E.g. the resolution may be too small or too '
+                                'large, or the audio sampling rate may be unsupported.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['PAYLOAD_TYPE_DISABLED']:
+            raise RuntimeError('Either friend turned off audio or video receiving or we turned off sending for the said'
+                               'payload.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['RTP_FAILED']:
+            RuntimeError('Failed to push frame through rtp interface.')
+
+    def video_send_frame(self, friend_number, width, height, y, u, v):
+        """
+        Send a video frame to a friend.
+
+        Y - plane should be of size: height * width
+        U - plane should be of size: (height/2) * (width/2)
+        V - plane should be of size: (height/2) * (width/2)
+
+        :param friend_number: The friend number of the friend to which to send a video frame.
+        :param width: Width of the frame in pixels.
+        :param height: Height of the frame in pixels.
+        :param y: Y (Luminance) plane data.
+        :param u: U (Chroma) plane data.
+        :param v: V (Chroma) plane data.
+        """
+        toxav_err_send_frame = c_int()
+        result = self.libtoxav.toxav_video_send_frame(self._toxav_pointer, c_uint32(friend_number), c_uint16(width),
+                                                       c_uint16(height), c_char_p(y), c_char_p(u), c_char_p(v),
+                                                       byref(toxav_err_send_frame))
+        toxav_err_send_frame = toxav_err_send_frame.value
+        if toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['OK']:
+            return bool(result)
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['NULL']:
+            raise ArgumentError('One of Y, U, or V was NULL.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['FRIEND_NOT_FOUND']:
+            raise ArgumentError('The friend_number passed did not designate a valid friend.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['FRIEND_NOT_IN_CALL']:
+            raise RuntimeError('This client is currently not in a call with the friend.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['SYNC']:
+            raise RuntimeError('Synchronization error occurred.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['INVALID']:
+            raise ArgumentError('One of the frame parameters was invalid. E.g. the resolution may be too small or too '
+                                'large, or the audio sampling rate may be unsupported.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['PAYLOAD_TYPE_DISABLED']:
+            raise RuntimeError('Either friend turned off audio or video receiving or we turned off sending for the said'
+                               'payload.')
+        elif toxav_err_send_frame == TOXAV_ERR_SEND_FRAME['RTP_FAILED']:
+            RuntimeError('Failed to push frame through rtp interface.')
+
+    # -----------------------------------------------------------------------------------------------------------------
+    # A/V receiving
+    # -----------------------------------------------------------------------------------------------------------------
+
+    def callback_audio_receive_frame(self, callback, user_data):
+        """
+        Set the callback for the `audio_receive_frame` event. Pass None to unset.
+
+        :param callback: Python function.
+        Function for the audio_receive_frame callback. The callback can be called multiple times per single
+        iteration depending on the amount of queued frames in the buffer. The received format is the same as in send
+        function.
+
+        Should take pointer (c_void_p) to ToxAV object,
+        The friend number (c_uint32) of the friend who sent an audio frame.
+        An array (c_uint8) of audio samples (sample_count * channels elements).
+        The number (c_size_t) of audio samples per channel in the PCM array.
+        Number (c_uint8) of audio channels.
+        Sampling rate (c_uint32) used in this frame.
+        pointer (c_void_p) to user_data
+        :param user_data: pointer (c_void_p) to user data
+        """
+        c_callback = CFUNCTYPE(None, c_void_p, c_uint32, POINTER(c_uint8), c_size_t, c_uint8, c_uint32, c_void_p)
+        self.audio_receive_frame_cb = c_callback(callback)
+        self.libtoxav.toxav_callback_audio_receive_frame(self._toxav_pointer, self.audio_receive_frame_cb, user_data)
+
+    def callback_video_receive_frame(self, callback, user_data):
+        """
+        Set the callback for the `video_receive_frame` event. Pass None to unset.
+
+        :param callback: Python function.
+        The function type for the video_receive_frame callback.
+
+        Should take
+        toxAV           pointer (c_void_p) to ToxAV object,
+        friend_number   The friend number (c_uint32) of the friend who sent a video frame.
+        width           Width (c_uint16) of the frame in pixels.
+        height          Height (c_uint16) of the frame in pixels.
+        y
+        u
+        v               Plane data (POINTER(c_uint8)).
+                            The size of plane data is derived from width and height where
+                            Y = MAX(width, abs(ystride)) * height,
+                            U = MAX(width/2, abs(ustride)) * (height/2) and
+                            V = MAX(width/2, abs(vstride)) * (height/2).
+        ystride
+        ustride
+        vstride         Strides data (c_int32). Strides represent padding for each plane that may or may not be present. You must
+                        handle strides in your image processing code. Strides are negative if the image is bottom-up
+                        hence why you MUST abs() it when calculating plane buffer size.
+        user_data       pointer (c_void_p) to user_data
+        :param user_data: pointer (c_void_p) to user data
+        """
+        c_callback = CFUNCTYPE(None, c_void_p, c_uint32, c_uint16, c_uint16, POINTER(c_uint8), POINTER(c_uint8),
+                               POINTER(c_uint8), c_int32, c_int32, c_int32, c_void_p)
+        self.video_receive_frame_cb = c_callback(callback)
+        self.libtoxav.toxav_callback_video_receive_frame(self._toxav_pointer, self.video_receive_frame_cb, user_data)

toxygen/wrapper/toxav_enums.py

@@ -0,0 +1,131 @@
+TOXAV_ERR_NEW = {
+    # The function returned successfully.
+    'OK': 0,
+    # One of the arguments to the function was NULL when it was not expected.
+    'NULL': 1,
+    # Memory allocation failure while trying to allocate structures required for the A/V session.
+    'MALLOC': 2,
+    # Attempted to create a second session for the same Tox instance.
+    'MULTIPLE': 3,
+}
+
+TOXAV_ERR_CALL = {
+    # The function returned successfully.
+    'OK': 0,
+    # A resource allocation error occurred while trying to create the structures required for the call.
+    'MALLOC': 1,
+    # Synchronization error occurred.
+    'SYNC': 2,
+    # The friend number did not designate a valid friend.
+    'FRIEND_NOT_FOUND': 3,
+    # The friend was valid, but not currently connected.
+    'FRIEND_NOT_CONNECTED': 4,
+    # Attempted to call a friend while already in an audio or video call with them.
+    'FRIEND_ALREADY_IN_CALL': 5,
+    # Audio or video bit rate is invalid.
+    'INVALID_BIT_RATE': 6,
+}
+
+TOXAV_ERR_ANSWER = {
+    # The function returned successfully.
+    'OK': 0,
+    # Synchronization error occurred.
+    'SYNC': 1,
+    # Failed to initialize codecs for call session. Note that codec initiation will fail if there is no receive callback
+    # registered for either audio or video.
+    'CODEC_INITIALIZATION': 2,
+    # The friend number did not designate a valid friend.
+    'FRIEND_NOT_FOUND': 3,
+    # The friend was valid, but they are not currently trying to initiate a call. This is also returned if this client
+    # is already in a call with the friend.
+    'FRIEND_NOT_CALLING': 4,
+    # Audio or video bit rate is invalid.
+    'INVALID_BIT_RATE': 5,
+}
+
+TOXAV_FRIEND_CALL_STATE = {
+    # Set by the AV core if an error occurred on the remote end or if friend timed out. This is the final state after
+    # which no more state transitions can occur for the call. This call state will never be triggered in combination
+    # with other call states.
+    'ERROR': 1,
+    # The call has finished. This is the final state after which no more state transitions can occur for the call. This
+    # call state will never be triggered in combination with other call states.
+    'FINISHED': 2,
+    # The flag that marks that friend is sending audio.
+    'SENDING_A': 4,
+    # The flag that marks that friend is sending video.
+    'SENDING_V': 8,
+    # The flag that marks that friend is receiving audio.
+    'ACCEPTING_A': 16,
+    # The flag that marks that friend is receiving video.
+    'ACCEPTING_V': 32,
+}
+
+TOXAV_CALL_CONTROL = {
+    # Resume a previously paused call. Only valid if the pause was caused by this client, if not, this control is
+    # ignored. Not valid before the call is accepted.
+    'RESUME': 0,
+    # Put a call on hold. Not valid before the call is accepted.
+    'PAUSE': 1,
+    # Reject a call if it was not answered, yet. Cancel a call after it was answered.
+    'CANCEL': 2,
+    # Request that the friend stops sending audio. Regardless of the friend's compliance, this will cause the
+    # audio_receive_frame event to stop being triggered on receiving an audio frame from the friend.
+    'MUTE_AUDIO': 3,
+    # Calling this control will notify client to start sending audio again.
+    'UNMUTE_AUDIO': 4,
+    # Request that the friend stops sending video. Regardless of the friend's compliance, this will cause the
+    # video_receive_frame event to stop being triggered on receiving a video frame from the friend.
+    'HIDE_VIDEO': 5,
+    # Calling this control will notify client to start sending video again.
+    'SHOW_VIDEO': 6,
+}
+
+TOXAV_ERR_CALL_CONTROL = {
+    # The function returned successfully.
+    'OK': 0,
+    # Synchronization error occurred.
+    'SYNC': 1,
+    # The friend_number passed did not designate a valid friend.
+    'FRIEND_NOT_FOUND': 2,
+    # This client is currently not in a call with the friend. Before the call is answered, only CANCEL is a valid
+    # control.
+    'FRIEND_NOT_IN_CALL': 3,
+    # Happens if user tried to pause an already paused call or if trying to resume a call that is not paused.
+    'INVALID_TRANSITION': 4,
+}
+
+TOXAV_ERR_BIT_RATE_SET = {
+    # The function returned successfully.
+    'OK': 0,
+    # Synchronization error occurred.
+    'SYNC': 1,
+    # The audio bit rate passed was not one of the supported values.
+    'INVALID_AUDIO_BIT_RATE': 2,
+    # The video bit rate passed was not one of the supported values.
+    'INVALID_VIDEO_BIT_RATE': 3,
+    # The friend_number passed did not designate a valid friend.
+    'FRIEND_NOT_FOUND': 4,
+    # This client is currently not in a call with the friend.
+    'FRIEND_NOT_IN_CALL': 5,
+}
+
+TOXAV_ERR_SEND_FRAME = {
+    # The function returned successfully.
+    'OK': 0,
+    # In case of video, one of Y, U, or V was NULL. In case of audio, the samples data pointer was NULL.
+    'NULL': 1,
+    # The friend_number passed did not designate a valid friend.
+    'FRIEND_NOT_FOUND': 2,
+    # This client is currently not in a call with the friend.
+    'FRIEND_NOT_IN_CALL': 3,
+    # Synchronization error occurred.
+    'SYNC': 4,
+    # One of the frame parameters was invalid. E.g. the resolution may be too small or too large, or the audio sampling
+    # rate may be unsupported.
+    'INVALID': 5,
+    # Either friend turned off audio or video receiving or we turned off sending for the said payload.
+    'PAYLOAD_TYPE_DISABLED': 6,
+    # Failed to push frame through rtp interface.
+    'RTP_FAILED': 7,
+}

toxygen/wrapper/toxcore_enums_and_consts.py

@@ -0,0 +1,954 @@
+TOX_USER_STATUS = {
+    'NONE': 0,
+    'AWAY': 1,
+    'BUSY': 2,
+}
+
+TOX_MESSAGE_TYPE = {
+    'NORMAL': 0,
+    'ACTION': 1,
+}
+
+TOX_PROXY_TYPE = {
+    'NONE': 0,
+    'HTTP': 1,
+    'SOCKS5': 2,
+}
+
+TOX_SAVEDATA_TYPE = {
+    'NONE': 0,
+    'TOX_SAVE': 1,
+    'SECRET_KEY': 2,
+}
+
+TOX_ERR_OPTIONS_NEW = {
+    'OK': 0,
+    'MALLOC': 1,
+}
+
+TOX_ERR_NEW = {
+    'OK': 0,
+    'NULL': 1,
+    'MALLOC': 2,
+    'PORT_ALLOC': 3,
+    'PROXY_BAD_TYPE': 4,
+    'PROXY_BAD_HOST': 5,
+    'PROXY_BAD_PORT': 6,
+    'PROXY_NOT_FOUND': 7,
+    'LOAD_ENCRYPTED': 8,
+    'LOAD_BAD_FORMAT': 9,
+}
+
+TOX_ERR_BOOTSTRAP = {
+    'OK': 0,
+    'NULL': 1,
+    'BAD_HOST': 2,
+    'BAD_PORT': 3,
+}
+
+TOX_CONNECTION = {
+    'NONE': 0,
+    'TCP': 1,
+    'UDP': 2,
+}
+
+TOX_ERR_SET_INFO = {
+    'OK': 0,
+    'NULL': 1,
+    'TOO_LONG': 2,
+}
+
+TOX_ERR_FRIEND_ADD = {
+    'OK': 0,
+    'NULL': 1,
+    'TOO_LONG': 2,
+    'NO_MESSAGE': 3,
+    'OWN_KEY': 4,
+    'ALREADY_SENT': 5,
+    'BAD_CHECKSUM': 6,
+    'SET_NEW_NOSPAM': 7,
+    'MALLOC': 8,
+}
+
+TOX_ERR_FRIEND_DELETE = {
+    'OK': 0,
+    'FRIEND_NOT_FOUND': 1,
+}
+
+TOX_ERR_FRIEND_BY_PUBLIC_KEY = {
+    'OK': 0,
+    'NULL': 1,
+    'NOT_FOUND': 2,
+}
+
+TOX_ERR_FRIEND_GET_PUBLIC_KEY = {
+    'OK': 0,
+    'FRIEND_NOT_FOUND': 1,
+}
+
+TOX_ERR_FRIEND_GET_LAST_ONLINE = {
+    'OK': 0,
+    'FRIEND_NOT_FOUND': 1,
+}
+
+TOX_ERR_FRIEND_QUERY = {
+    'OK': 0,
+    'NULL': 1,
+    'FRIEND_NOT_FOUND': 2,
+}
+
+TOX_ERR_SET_TYPING = {
+    'OK': 0,
+    'FRIEND_NOT_FOUND': 1,
+}
+
+TOX_ERR_FRIEND_SEND_MESSAGE = {
+    'OK': 0,
+    'NULL': 1,
+    'FRIEND_NOT_FOUND': 2,
+    'FRIEND_NOT_CONNECTED': 3,
+    'SENDQ': 4,
+    'TOO_LONG': 5,
+    'EMPTY': 6,
+}
+
+TOX_FILE_KIND = {
+    'DATA': 0,
+    'AVATAR': 1,
+}
+
+TOX_FILE_CONTROL = {
+    'RESUME': 0,
+    'PAUSE': 1,
+    'CANCEL': 2,
+}
+
+TOX_ERR_FILE_CONTROL = {
+    'OK': 0,
+    'FRIEND_NOT_FOUND': 1,
+    'FRIEND_NOT_CONNECTED': 2,
+    'NOT_FOUND': 3,
+    'NOT_PAUSED': 4,
+    'DENIED': 5,
+    'ALREADY_PAUSED': 6,
+    'SENDQ': 7,
+}
+
+TOX_ERR_FILE_SEEK = {
+    'OK': 0,
+    'FRIEND_NOT_FOUND': 1,
+    'FRIEND_NOT_CONNECTED': 2,
+    'NOT_FOUND': 3,
+    'DENIED': 4,
+    'INVALID_POSITION': 5,
+    'SENDQ': 6,
+}
+
+TOX_ERR_FILE_GET = {
+    'OK': 0,
+    'NULL': 1,
+    'FRIEND_NOT_FOUND': 2,
+    'NOT_FOUND': 3,
+}
+
+TOX_ERR_FILE_SEND = {
+    'OK': 0,
+    'NULL': 1,
+    'FRIEND_NOT_FOUND': 2,
+    'FRIEND_NOT_CONNECTED': 3,
+    'NAME_TOO_LONG': 4,
+    'TOO_MANY': 5,
+}
+
+TOX_ERR_FILE_SEND_CHUNK = {
+    'OK': 0,
+    'NULL': 1,
+    'FRIEND_NOT_FOUND': 2,
+    'FRIEND_NOT_CONNECTED': 3,
+    'NOT_FOUND': 4,
+    'NOT_TRANSFERRING': 5,
+    'INVALID_LENGTH': 6,
+    'SENDQ': 7,
+    'WRONG_POSITION': 8,
+}
+
+TOX_ERR_FRIEND_CUSTOM_PACKET = {
+    'OK': 0,
+    'NULL': 1,
+    'FRIEND_NOT_FOUND': 2,
+    'FRIEND_NOT_CONNECTED': 3,
+    'INVALID': 4,
+    'EMPTY': 5,
+    'TOO_LONG': 6,
+    'SENDQ': 7,
+}
+
+TOX_ERR_GET_PORT = {
+    'OK': 0,
+    'NOT_BOUND': 1,
+}
+
+TOX_GROUP_PRIVACY_STATE = {
+
+    #
+    # The group is considered to be public. Anyone may join the group using the Chat ID.
+    #
+    # If the group is in this state, even if the Chat ID is never explicitly shared
+    # with someone outside of the group, information including the Chat ID, IP addresses,
+    # and peer ID's (but not Tox ID's) is visible to anyone with access to a node
+    # storing a DHT entry for the given group.
+    #
+    'PUBLIC': 0,
+
+    #
+    # The group is considered to be private. The only way to join the group is by having
+    # someone in your contact list send you an invite.
+    #
+    # If the group is in this state, no group information (mentioned above) is present in the DHT;
+    # the DHT is not used for any purpose at all. If a public group is set to private,
+    # all DHT information related to the group will expire shortly.
+    #
+    'PRIVATE': 1
+}
+
+TOX_GROUP_ROLE = {
+
+    #
+    # May kick and ban all other peers as well as set their role to anything (except founder).
+    # Founders may also set the group password, toggle the privacy state, and set the peer limit.
+    #
+    'FOUNDER': 0,
+
+    #
+    # May kick, ban and set the user and observer roles for peers below this role.
+    # May also set the group topic.
+    #
+    'MODERATOR': 1,
+
+    #
+    # May communicate with other peers normally.
+    #
+    'USER': 2,
+
+    #
+    # May observe the group and ignore peers; may not communicate with other peers or with the group.
+    #
+    'OBSERVER': 3
+}
+
+TOX_ERR_GROUP_NEW = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_NEW_OK': 0,
+
+    #
+    # The group name exceeded TOX_GROUP_MAX_GROUP_NAME_LENGTH.
+    #
+    'TOX_ERR_GROUP_NEW_TOO_LONG': 1,
+
+    #
+    # group_name is NULL or length is zero.
+    #
+    'TOX_ERR_GROUP_NEW_EMPTY': 2,
+
+    #
+    # TOX_GROUP_PRIVACY_STATE is an invalid type.
+    #
+    'TOX_ERR_GROUP_NEW_PRIVACY': 3,
+
+    #
+    # The group instance failed to initialize.
+    #
+    'TOX_ERR_GROUP_NEW_INIT': 4,
+
+    #
+    # The group state failed to initialize. This usually indicates that something went wrong
+    # related to cryptographic signing.
+    #
+    'TOX_ERR_GROUP_NEW_STATE': 5,
+
+    #
+    # The group failed to announce to the DHT. This indicates a network related error.
+    #
+    'TOX_ERR_GROUP_NEW_ANNOUNCE': 6,
+}
+
+TOX_ERR_GROUP_JOIN = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_JOIN_OK': 0,
+
+    #
+    # The group instance failed to initialize.
+    #
+    'TOX_ERR_GROUP_JOIN_INIT': 1,
+
+    #
+    # The chat_id pointer is set to NULL or a group with chat_id already exists. This usually
+    # happens if the client attempts to create multiple sessions for the same group.
+    #
+    'TOX_ERR_GROUP_JOIN_BAD_CHAT_ID': 2,
+
+    #
+    # Password length exceeded TOX_GROUP_MAX_PASSWORD_SIZE.
+    #
+    'TOX_ERR_GROUP_JOIN_TOO_LONG': 3,
+}
+
+TOX_ERR_GROUP_RECONNECT = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_RECONNECT_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_RECONNECT_GROUP_NOT_FOUND': 1,
+}
+
+TOX_ERR_GROUP_LEAVE = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_LEAVE_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_LEAVE_GROUP_NOT_FOUND': 1,
+
+    #
+    # Message length exceeded 'TOX_GROUP_MAX_PART_LENGTH.
+    #
+    'TOX_ERR_GROUP_LEAVE_TOO_LONG': 2,
+
+    #
+    # The parting packet failed to send.
+    #
+    'TOX_ERR_GROUP_LEAVE_FAIL_SEND': 3,
+
+    #
+    # The group chat instance failed to be deleted. This may occur due to memory related errors.
+    #
+    'TOX_ERR_GROUP_LEAVE_DELETE_FAIL': 4,
+}
+
+TOX_ERR_GROUP_SELF_QUERY = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_SELF_QUERY_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_SELF_QUERY_GROUP_NOT_FOUND': 1,
+}
+
+
+TOX_ERR_GROUP_SELF_NAME_SET = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_SELF_NAME_SET_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_SELF_NAME_SET_GROUP_NOT_FOUND': 1,
+
+    #
+    # Name length exceeded 'TOX_MAX_NAME_LENGTH.
+    #
+    'TOX_ERR_GROUP_SELF_NAME_SET_TOO_LONG': 2,
+
+    #
+    # The length given to the set function is zero or name is a NULL pointer.
+    #
+    'TOX_ERR_GROUP_SELF_NAME_SET_INVALID': 3,
+
+    #
+    # The name is already taken by another peer in the group.
+    #
+    'TOX_ERR_GROUP_SELF_NAME_SET_TAKEN': 4,
+
+    #
+    # The packet failed to send.
+    #
+    'TOX_ERR_GROUP_SELF_NAME_SET_FAIL_SEND': 5
+}
+
+TOX_ERR_GROUP_SELF_STATUS_SET = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_SELF_STATUS_SET_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_SELF_STATUS_SET_GROUP_NOT_FOUND': 1,
+
+    #
+    # An invalid type was passed to the set function.
+    #
+    'TOX_ERR_GROUP_SELF_STATUS_SET_INVALID': 2,
+
+    #
+    # The packet failed to send.
+    #
+    'TOX_ERR_GROUP_SELF_STATUS_SET_FAIL_SEND': 3
+}
+
+TOX_ERR_GROUP_PEER_QUERY = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_PEER_QUERY_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_PEER_QUERY_GROUP_NOT_FOUND': 1,
+
+    #
+    # The ID passed did not designate a valid peer.
+    #
+    'TOX_ERR_GROUP_PEER_QUERY_PEER_NOT_FOUND': 2
+}
+
+TOX_ERR_GROUP_STATE_QUERIES = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_STATE_QUERIES_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_STATE_QUERIES_GROUP_NOT_FOUND': 1
+}
+
+
+TOX_ERR_GROUP_TOPIC_SET = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_TOPIC_SET_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_TOPIC_SET_GROUP_NOT_FOUND': 1,
+
+    #
+    # Topic length exceeded 'TOX_GROUP_MAX_TOPIC_LENGTH.
+    #
+    'TOX_ERR_GROUP_TOPIC_SET_TOO_LONG': 2,
+
+    #
+    # The caller does not have the required permissions to set the topic.
+    #
+    'TOX_ERR_GROUP_TOPIC_SET_PERMISSIONS': 3,
+
+    #
+    # The packet could not be created. This error is usually related to cryptographic signing.
+    #
+    'TOX_ERR_GROUP_TOPIC_SET_FAIL_CREATE': 4,
+
+    #
+    # The packet failed to send.
+    #
+    'TOX_ERR_GROUP_TOPIC_SET_FAIL_SEND': 5
+}
+
+TOX_ERR_GROUP_SEND_MESSAGE = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_SEND_MESSAGE_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_SEND_MESSAGE_GROUP_NOT_FOUND': 1,
+
+    #
+    # Message length exceeded 'TOX_MAX_MESSAGE_LENGTH.
+    #
+    'TOX_ERR_GROUP_SEND_MESSAGE_TOO_LONG': 2,
+
+    #
+    # The message pointer is null or length is zero.
+    #
+    'TOX_ERR_GROUP_SEND_MESSAGE_EMPTY': 3,
+
+    #
+    # The message type is invalid.
+    #
+    'TOX_ERR_GROUP_SEND_MESSAGE_BAD_TYPE': 4,
+
+    #
+    # The caller does not have the required permissions to send group messages.
+    #
+    'TOX_ERR_GROUP_SEND_MESSAGE_PERMISSIONS': 5,
+
+    #
+    # Packet failed to send.
+    #
+    'TOX_ERR_GROUP_SEND_MESSAGE_FAIL_SEND': 6
+}
+
+TOX_ERR_GROUP_SEND_PRIVATE_MESSAGE = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_SEND_PRIVATE_MESSAGE_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_SEND_PRIVATE_MESSAGE_GROUP_NOT_FOUND': 1,
+
+    #
+    # The ID passed did not designate a valid peer.
+    #
+    'TOX_ERR_GROUP_SEND_PRIVATE_MESSAGE_PEER_NOT_FOUND': 2,
+
+    #
+    # Message length exceeded 'TOX_MAX_MESSAGE_LENGTH.
+    #
+    'TOX_ERR_GROUP_SEND_PRIVATE_MESSAGE_TOO_LONG': 3,
+
+    #
+    # The message pointer is null or length is zero.
+    #
+    'TOX_ERR_GROUP_SEND_PRIVATE_MESSAGE_EMPTY': 4,
+
+    #
+    # The caller does not have the required permissions to send group messages.
+    #
+    'TOX_ERR_GROUP_SEND_PRIVATE_MESSAGE_PERMISSIONS': 5,
+
+    #
+    # Packet failed to send.
+    #
+    'TOX_ERR_GROUP_SEND_PRIVATE_MESSAGE_FAIL_SEND': 6
+}
+
+TOX_ERR_GROUP_SEND_CUSTOM_PACKET = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_SEND_CUSTOM_PACKET_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_SEND_CUSTOM_PACKET_GROUP_NOT_FOUND': 1,
+
+    #
+    # Message length exceeded 'TOX_MAX_MESSAGE_LENGTH.
+    #
+    'TOX_ERR_GROUP_SEND_CUSTOM_PACKET_TOO_LONG': 2,
+
+    #
+    # The message pointer is null or length is zero.
+    #
+    'TOX_ERR_GROUP_SEND_CUSTOM_PACKET_EMPTY': 3,
+
+    #
+    # The caller does not have the required permissions to send group messages.
+    #
+    'TOX_ERR_GROUP_SEND_CUSTOM_PACKET_PERMISSIONS': 4
+}
+
+TOX_ERR_GROUP_INVITE_FRIEND = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_INVITE_FRIEND_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_INVITE_FRIEND_GROUP_NOT_FOUND': 1,
+
+    #
+    # The friend number passed did not designate a valid friend.
+    #
+    'TOX_ERR_GROUP_INVITE_FRIEND_FRIEND_NOT_FOUND': 2,
+
+    #
+    # Creation of the invite packet failed. This indicates a network related error.
+    #
+    'TOX_ERR_GROUP_INVITE_FRIEND_INVITE_FAIL': 3,
+
+    #
+    # Packet failed to send.
+    #
+    'TOX_ERR_GROUP_INVITE_FRIEND_FAIL_SEND': 4
+}
+
+TOX_ERR_GROUP_INVITE_ACCEPT = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_INVITE_ACCEPT_OK': 0,
+
+    #
+    # The invite data is not in the expected format.
+    #
+    'TOX_ERR_GROUP_INVITE_ACCEPT_BAD_INVITE': 1,
+
+    #
+    # The group instance failed to initialize.
+    #
+    'TOX_ERR_GROUP_INVITE_ACCEPT_INIT_FAILED': 2,
+
+    #
+    # Password length exceeded 'TOX_GROUP_MAX_PASSWORD_SIZE.
+    #
+    'TOX_ERR_GROUP_INVITE_ACCEPT_TOO_LONG': 3
+}
+
+TOX_GROUP_JOIN_FAIL = {
+
+    #
+    # You are using the same nickname as someone who is already in the group.
+    #
+    'TOX_GROUP_JOIN_FAIL_NAME_TAKEN': 0,
+
+    #
+    # The group peer limit has been reached.
+    #
+    'TOX_GROUP_JOIN_FAIL_PEER_LIMIT': 1,
+
+    #
+    # You have supplied an invalid password.
+    #
+    'TOX_GROUP_JOIN_FAIL_INVALID_PASSWORD': 2,
+
+    #
+    # The join attempt failed due to an unspecified error. This often occurs when the group is
+    # not found in the DHT.
+    #
+    'TOX_GROUP_JOIN_FAIL_UNKNOWN': 3
+}
+
+TOX_ERR_GROUP_FOUNDER_SET_PASSWORD = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PASSWORD_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PASSWORD_GROUP_NOT_FOUND': 1,
+
+    #
+    # The caller does not have the required permissions to set the password.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PASSWORD_PERMISSIONS': 2,
+
+    #
+    # Password length exceeded 'TOX_GROUP_MAX_PASSWORD_SIZE.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PASSWORD_TOO_LONG': 3,
+
+    #
+    # The packet failed to send.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PASSWORD_FAIL_SEND': 4
+}
+
+TOX_ERR_GROUP_FOUNDER_SET_PRIVACY_STATE = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PRIVACY_STATE_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PRIVACY_STATE_GROUP_NOT_FOUND': 1,
+
+    #
+    # 'TOX_GROUP_PRIVACY_STATE is an invalid type.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PRIVACY_STATE_INVALID': 2,
+
+    #
+    # The caller does not have the required permissions to set the privacy state.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PRIVACY_STATE_PERMISSIONS': 3,
+
+    #
+    # The privacy state could not be set. This may occur due to an error related to
+    # cryptographic signing of the new shared state.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PRIVACY_STATE_FAIL_SET': 4,
+
+    #
+    # The packet failed to send.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PRIVACY_STATE_FAIL_SEND': 5
+}
+
+TOX_ERR_GROUP_FOUNDER_SET_PEER_LIMIT = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PEER_LIMIT_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PEER_LIMIT_GROUP_NOT_FOUND': 1,
+
+    #
+    # The caller does not have the required permissions to set the peer limit.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PEER_LIMIT_PERMISSIONS': 2,
+
+    #
+    # The peer limit could not be set. This may occur due to an error related to
+    # cryptographic signing of the new shared state.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PEER_LIMIT_FAIL_SET': 3,
+
+    #
+    # The packet failed to send.
+    #
+    'TOX_ERR_GROUP_FOUNDER_SET_PEER_LIMIT_FAIL_SEND': 4
+}
+
+TOX_ERR_GROUP_TOGGLE_IGNORE = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_TOGGLE_IGNORE_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_TOGGLE_IGNORE_GROUP_NOT_FOUND': 1,
+
+    #
+    # The ID passed did not designate a valid peer.
+    #
+    'TOX_ERR_GROUP_TOGGLE_IGNORE_PEER_NOT_FOUND': 2
+}
+
+TOX_ERR_GROUP_MOD_SET_ROLE = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_MOD_SET_ROLE_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_MOD_SET_ROLE_GROUP_NOT_FOUND': 1,
+
+    #
+    # The ID passed did not designate a valid peer. Note: you cannot set your own role.
+    #
+    'TOX_ERR_GROUP_MOD_SET_ROLE_PEER_NOT_FOUND': 2,
+
+    #
+    # The caller does not have the required permissions for this action.
+    #
+    'TOX_ERR_GROUP_MOD_SET_ROLE_PERMISSIONS': 3,
+
+    #
+    # The role assignment is invalid. This will occur if you try to set a peer's role to
+    # the role they already have.
+    #
+    'TOX_ERR_GROUP_MOD_SET_ROLE_ASSIGNMENT': 4,
+
+    #
+    # The role was not successfully set. This may occur if something goes wrong with role setting': ,
+    # or if the packet fails to send.
+    #
+    'TOX_ERR_GROUP_MOD_SET_ROLE_FAIL_ACTION': 5
+}
+
+TOX_ERR_GROUP_MOD_REMOVE_PEER = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_PEER_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_PEER_GROUP_NOT_FOUND': 1,
+
+    #
+    # The ID passed did not designate a valid peer.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_PEER_PEER_NOT_FOUND': 2,
+
+    #
+    # The caller does not have the required permissions for this action.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_PEER_PERMISSIONS': 3,
+
+    #
+    # The peer could not be removed from the group.
+    #
+    # If a ban was set': , this error indicates that the ban entry could not be created.
+    # This is usually due to the peer's IP address already occurring in the ban list. It may also
+    # be due to the entry containing invalid peer information': , or a failure to cryptographically
+    # authenticate the entry.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_PEER_FAIL_ACTION': 4,
+
+    #
+    # The packet failed to send.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_PEER_FAIL_SEND': 5
+}
+
+TOX_ERR_GROUP_MOD_REMOVE_BAN = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_BAN_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_BAN_GROUP_NOT_FOUND': 1,
+
+    #
+    # The caller does not have the required permissions for this action.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_BAN_PERMISSIONS': 2,
+
+    #
+    # The ban entry could not be removed. This may occur if ban_id does not designate
+    # a valid ban entry.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_BAN_FAIL_ACTION': 3,
+
+    #
+    # The packet failed to send.
+    #
+    'TOX_ERR_GROUP_MOD_REMOVE_BAN_FAIL_SEND': 4
+}
+
+TOX_GROUP_MOD_EVENT = {
+
+    #
+    # A peer has been kicked from the group.
+    #
+    'KICK': 0,
+
+    #
+    # A peer has been banned from the group.
+    #
+    'BAN': 1,
+
+    #
+    # A peer as been given the observer role.
+    #
+    'OBSERVER': 2,
+
+    #
+    # A peer has been given the user role.
+    #
+    'USER': 3,
+
+    #
+    # A peer has been given the moderator role.
+    #
+    'MODERATOR': 4,
+}
+
+TOX_ERR_GROUP_BAN_QUERY = {
+
+    #
+    # The function returned successfully.
+    #
+    'TOX_ERR_GROUP_BAN_QUERY_OK': 0,
+
+    #
+    # The group number passed did not designate a valid group.
+    #
+    'TOX_ERR_GROUP_BAN_QUERY_GROUP_NOT_FOUND': 1,
+
+    #
+    # The ban_id does not designate a valid ban list entry.
+    #
+    'TOX_ERR_GROUP_BAN_QUERY_BAD_ID': 2,
+}
+
+
+TOX_GROUP_BAN_TYPE = {
+
+    'IP_PORT': 0,
+
+    'PUBLIC_KEY': 1,
+
+    'NICK': 2
+}
+
+TOX_PUBLIC_KEY_SIZE = 32
+
+TOX_ADDRESS_SIZE = TOX_PUBLIC_KEY_SIZE + 6
+
+TOX_MAX_FRIEND_REQUEST_LENGTH = 1016
+
+TOX_MAX_MESSAGE_LENGTH = 1372
+
+TOX_GROUP_MAX_TOPIC_LENGTH = 512
+
+TOX_GROUP_MAX_PART_LENGTH = 128
+
+TOX_GROUP_MAX_GROUP_NAME_LENGTH = 48
+
+TOX_GROUP_MAX_PASSWORD_SIZE = 32
+
+TOX_GROUP_CHAT_ID_SIZE = 32
+
+TOX_GROUP_PEER_PUBLIC_KEY_SIZE = 32
+
+TOX_MAX_NAME_LENGTH = 128
+
+TOX_MAX_STATUS_MESSAGE_LENGTH = 1007
+
+TOX_SECRET_KEY_SIZE = 32
+
+TOX_FILE_ID_LENGTH = 32
+
+TOX_HASH_LENGTH = 32
+
+TOX_MAX_CUSTOM_PACKET_SIZE = 1373

toxygen/wrapper/toxencryptsave.py

@@ -0,0 +1,74 @@
+from wrapper import libtox
+from ctypes import c_size_t, create_string_buffer, byref, c_int, ArgumentError, c_char_p, c_bool
+from wrapper.toxencryptsave_enums_and_consts import *
+
+
+class ToxEncryptSave:
+
+    def __init__(self):
+        self.libtoxencryptsave = libtox.LibToxEncryptSave()
+
+    def is_data_encrypted(self, data):
+        """
+        Checks if given data is encrypted
+        """
+        func = self.libtoxencryptsave.tox_is_data_encrypted
+        func.restype = c_bool
+        result = func(c_char_p(bytes(data)))
+        return result
+
+    def pass_encrypt(self, data, password):
+        """
+        Encrypts the given data with the given password.
+
+        :return: output array
+        """
+        out = create_string_buffer(len(data) + TOX_PASS_ENCRYPTION_EXTRA_LENGTH)
+        tox_err_encryption = c_int()
+        self.libtoxencryptsave.tox_pass_encrypt(c_char_p(data),
+                                                c_size_t(len(data)),
+                                                c_char_p(bytes(password, 'utf-8')),
+                                                c_size_t(len(password)),
+                                                out,
+                                                byref(tox_err_encryption))
+        tox_err_encryption = tox_err_encryption.value
+        if tox_err_encryption == TOX_ERR_ENCRYPTION['OK']:
+            return out[:]
+        elif tox_err_encryption == TOX_ERR_ENCRYPTION['NULL']:
+            raise ArgumentError('Some input data, or maybe the output pointer, was null.')
+        elif tox_err_encryption == TOX_ERR_ENCRYPTION['KEY_DERIVATION_FAILED']:
+            raise RuntimeError('The crypto lib was unable to derive a key from the given passphrase, which is usually a'
+                               ' lack of memory issue. The functions accepting keys do not produce this error.')
+        elif tox_err_encryption == TOX_ERR_ENCRYPTION['FAILED']:
+            raise RuntimeError('The encryption itself failed.')
+
+    def pass_decrypt(self, data, password):
+        """
+        Decrypts the given data with the given password.
+
+        :return: output array
+        """
+        out = create_string_buffer(len(data) - TOX_PASS_ENCRYPTION_EXTRA_LENGTH)
+        tox_err_decryption = c_int()
+        self.libtoxencryptsave.tox_pass_decrypt(c_char_p(bytes(data)),
+                                                c_size_t(len(data)),
+                                                c_char_p(bytes(password, 'utf-8')),
+                                                c_size_t(len(password)),
+                                                out,
+                                                byref(tox_err_decryption))
+        tox_err_decryption = tox_err_decryption.value
+        if tox_err_decryption == TOX_ERR_DECRYPTION['OK']:
+            return out[:]
+        elif tox_err_decryption == TOX_ERR_DECRYPTION['NULL']:
+            raise ArgumentError('Some input data, or maybe the output pointer, was null.')
+        elif tox_err_decryption == TOX_ERR_DECRYPTION['INVALID_LENGTH']:
+            raise ArgumentError('The input data was shorter than TOX_PASS_ENCRYPTION_EXTRA_LENGTH bytes')
+        elif tox_err_decryption == TOX_ERR_DECRYPTION['BAD_FORMAT']:
+            raise ArgumentError('The input data is missing the magic number (i.e. wasn\'t created by this module, or is'
+                                ' corrupted)')
+        elif tox_err_decryption == TOX_ERR_DECRYPTION['KEY_DERIVATION_FAILED']:
+            raise RuntimeError('The crypto lib was unable to derive a key from the given passphrase, which is usually a'
+                               ' lack of memory issue. The functions accepting keys do not produce this error.')
+        elif tox_err_decryption == TOX_ERR_DECRYPTION['FAILED']:
+            raise RuntimeError('The encrypted byte array could not be decrypted. Either the data was corrupt or the '
+                               'password/key was incorrect.')

toxygen/wrapper/toxencryptsave_enums_and_consts.py

@@ -0,0 +1,29 @@
+TOX_ERR_ENCRYPTION = {
+    # The function returned successfully.
+    'OK': 0,
+    # Some input data, or maybe the output pointer, was null.
+    'NULL': 1,
+    # The crypto lib was unable to derive a key from the given passphrase, which is usually a lack of memory issue. The
+    # functions accepting keys do not produce this error.
+    'KEY_DERIVATION_FAILED': 2,
+    # The encryption itself failed.
+    'FAILED': 3
+}
+
+TOX_ERR_DECRYPTION = {
+    # The function returned successfully.
+    'OK': 0,
+    # Some input data, or maybe the output pointer, was null.
+    'NULL': 1,
+    # The input data was shorter than TOX_PASS_ENCRYPTION_EXTRA_LENGTH bytes
+    'INVALID_LENGTH': 2,
+    # The input data is missing the magic number (i.e. wasn't created by this module, or is corrupted)
+    'BAD_FORMAT': 3,
+    # The crypto lib was unable to derive a key from the given passphrase, which is usually a lack of memory issue. The
+    # functions accepting keys do not produce this error.
+    'KEY_DERIVATION_FAILED': 4,
+    # The encrypted byte array could not be decrypted. Either the data was corrupt or the password/key was incorrect.
+    'FAILED': 5,
+}
+
+TOX_PASS_ENCRYPTION_EXTRA_LENGTH = 80