Code cleanup

kcc/KCC_gui.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 #
 # Copyright (c) 2012-2014 Ciro Mattia Gonano <ciromattia@gmail.com>
-# Copyright (c) 2013-2014 Pawel Jastrzebski <pawelj@iosphe.re>
+# Copyright (c) 2013-2015 Pawel Jastrzebski <pawelj@iosphe.re>
 #
 # Permission to use, copy, modify, and/or distribute this software for
 # any purpose with or without fee is hereby granted, provided that the
@@ -19,7 +19,7 @@
 
 __version__ = '4.3.1'
 __license__ = 'ISC'
-__copyright__ = '2012-2014, Ciro Mattia Gonano <ciromattia@gmail.com>, Pawel Jastrzebski <pawelj@iosphe.re>'
+__copyright__ = '2012-2015, Ciro Mattia Gonano <ciromattia@gmail.com>, Pawel Jastrzebski <pawelj@iosphe.re>'
 __docformat__ = 'restructuredtext en'
 
 import os
@@ -33,12 +33,11 @@ from shutil import move
 from http.server import BaseHTTPRequestHandler, HTTPServer
 from socketserver import ThreadingMixIn
 from subprocess import STDOUT, PIPE
-from PyQt5 import QtGui, QtCore, QtWidgets
+from PyQt5 import QtGui, QtCore, QtWidgets, QtNetwork
 from xml.dom.minidom import parse
-from html.parser import HTMLParser
 from psutil import Popen, Process
 from copy import copy
-from .shared import md5Checksum
+from .shared import md5Checksum, HTMLStripper
 from . import comic2ebook
 from . import KCC_rc_web
 if sys.platform.startswith('darwin'):
@@ -49,6 +48,64 @@ else:
     from . import KCC_ui
 
 
+class QApplicationMessaging(QtWidgets.QApplication):
+    messageFromOtherInstance = QtCore.pyqtSignal(bytes)
+
+    def __init__(self, argv):
+        QtWidgets.QApplication.__init__(self, argv)
+        self._key = 'KCC'
+        self._timeout = 1000
+        self._locked = False
+        socket = QtNetwork.QLocalSocket(self)
+        socket.connectToServer(self._key, QtCore.QIODevice.WriteOnly)
+        if not socket.waitForConnected(self._timeout):
+            self._server = QtNetwork.QLocalServer(self)
+            # noinspection PyUnresolvedReferences
+            self._server.newConnection.connect(self.handleMessage)
+            self._server.listen(self._key)
+        else:
+            self._locked = True
+        socket.disconnectFromServer()
+
+    def __del__(self):
+        if not self._locked:
+            self._server.close()
+
+    def event(self, e):
+        if e.type() == QtCore.QEvent.FileOpen:
+            self.messageFromOtherInstance.emit(bytes(e.file(), 'UTF-8'))
+            return True
+        else:
+            return QtWidgets.QApplication.event(self, e)
+
+    def isRunning(self):
+        return self._locked
+
+    def handleMessage(self):
+        socket = self._server.nextPendingConnection()
+        if socket.waitForReadyRead(self._timeout):
+            self.messageFromOtherInstance.emit(socket.readAll().data())
+
+    def sendMessage(self, message):
+        socket = QtNetwork.QLocalSocket(self)
+        socket.connectToServer(self._key, QtCore.QIODevice.WriteOnly)
+        socket.waitForConnected(self._timeout)
+        socket.write(bytes(message, 'UTF-8'))
+        socket.waitForBytesWritten(self._timeout)
+        socket.disconnectFromServer()
+
+
+class QMainWindowKCC(QtWidgets.QMainWindow):
+    progressBarTick = QtCore.pyqtSignal(str)
+    modeConvert = QtCore.pyqtSignal(int)
+    addMessage = QtCore.pyqtSignal(str, str, bool)
+    addTrayMessage = QtCore.pyqtSignal(str, str)
+    showDialog = QtCore.pyqtSignal(str, str)
+    hideProgressBar = QtCore.pyqtSignal()
+    forceShutdown = QtCore.pyqtSignal()
+    dialogAnswer = QtCore.pyqtSignal(int)
+
+
 class Icons:
     def __init__(self):
         self.deviceKindle = QtGui.QIcon()
@@ -76,19 +133,6 @@ class Icons:
         self.programIcon.addPixmap(QtGui.QPixmap(":/Icon/icons/comic2ebook.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
 
 
-class HTMLStripper(HTMLParser):
-    def __init__(self):
-        HTMLParser.__init__(self)
-        self.reset()
-        self.fed = []
-
-    def handle_data(self, d):
-        self.fed.append(d)
-
-    def get_data(self):
-        return ''.join(self.fed)
-
-
 class WebServerHandler(BaseHTTPRequestHandler):
     # noinspection PyAttributeOutsideInit, PyArgumentList
     def do_GET(self):