Mercurial Repositories > eric / file comparison
comparison: eric6/WebBrowser/Tools/WebIconLoader.py
eric6/WebBrowser/Tools/WebIconLoader.py
- changeset 6942
- 2602857055c5
- parent 6645
- ad476851d7e0
- child 7229
- 53054eb5b15a
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| 6941:f99d60d6b59b | 6942:2602857055c5 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2016 - 2019 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing an object to load web site icons. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 from PyQt5.QtCore import pyqtSignal, pyqtSlot, QObject | |
| 13 from PyQt5.QtGui import QIcon, QPixmap, QImage | |
| 14 from PyQt5.QtNetwork import QNetworkRequest | |
| 15 | |
| 16 import WebBrowser.WebBrowserWindow | |
| 17 | |
| 18 | |
| 19 class WebIconLoader(QObject): | |
| 20 """ | |
| 21 Class implementing a loader for web site icons. | |
| 22 | |
| 23 @signal iconLoaded(icon) emitted when the con has been loaded | |
| 24 """ | |
| 25 iconLoaded = pyqtSignal(QIcon) | |
| 26 | |
| 27 def __init__(self, url, parent=None): | |
| 28 """ | |
| 29 Constructor | |
| 30 | |
| 31 @param url URL to fetch the icon from | |
| 32 @type QUrl | |
| 33 @param parent reference to the parent object | |
| 34 @type QObject | |
| 35 """ | |
| 36 super(WebIconLoader, self).__init__(parent) | |
| 37 | |
| 38 networkManager = \ | |
| 39 WebBrowser.WebBrowserWindow.WebBrowserWindow.networkManager() | |
| 40 self.__reply = networkManager.get(QNetworkRequest(url)) | |
| 41 self.__reply.finished.connect(self.__finished) | |
| 42 | |
| 43 @pyqtSlot() | |
| 44 def __finished(self): | |
| 45 """ | |
| 46 Private slot handling the downloaded icon. | |
| 47 """ | |
| 48 # ignore any errors and emit an empty icon in this case | |
| 49 data = self.__reply.readAll() | |
| 50 icon = QIcon(QPixmap.fromImage(QImage.fromData(data))) | |
| 51 self.iconLoaded.emit(icon) | |
| 52 | |
| 53 self.__reply.deleteLater() | |
| 54 self.__reply = None |
