Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebBrowser/Tools/WebIconLoader.py	Sun Feb 07 18:08:48 2016 +0100
@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2016 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing an object to load web site icons.
+"""
+
+from __future__ import unicode_literals
+
+from PyQt5.QtCore import pyqtSignal, pyqtSlot, QObject
+from PyQt5.QtGui import QIcon, QPixmap, QImage
+
+from ..Network.FollowRedirectReply import FollowRedirectReply
+
+import WebBrowser.WebBrowserWindow
+
+
+class WebIconLoader(QObject):
+    """
+    Class implementing a loader for web site icons.
+    
+    @signal iconLoaded(icon) emitted when the con has been loaded
+    """
+    iconLoaded = pyqtSignal(QIcon)
+    
+    def __init__(self, url, parent=None):
+        """
+        Constructor
+        
+        @param url URL to fetch the icon from
+        @type QUrl
+        @param parent reference to the parent object
+        @type QObject
+        """
+        super(WebIconLoader, self).__init__(parent)
+        
+        networkManager = \
+            WebBrowser.WebBrowserWindow.WebBrowserWindow.networkManager()
+        self.__reply = FollowRedirectReply(url, networkManager)
+        self.__reply.finished.connect(self.__finished)
+    
+    @pyqtSlot()
+    def __finished(self):
+        """
+        Private slot handling the downloaded icon.
+        """
+        # ignore any errors and emit an empty icon in this case
+        data = self.__reply.readAll()
+        icon = QIcon(QPixmap.fromImage(QImage.fromData(data)))
+        self.iconLoaded.emit(icon)
+        
+        self.__reply.deleteLater()
+        self.__reply = None