Mercurial Repositories > eric / file comparison
comparison: eric7/WebBrowser/Tools/WebIconLoader.py
eric7/WebBrowser/Tools/WebIconLoader.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8218
- 7c09585bd960
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2016 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing an object to load web site icons. | |
| 8 """ | |
| 9 | |
| 10 from PyQt5.QtCore import pyqtSignal, pyqtSlot, QObject | |
| 11 from PyQt5.QtGui import QIcon, QPixmap, QImage | |
| 12 from PyQt5.QtNetwork import QNetworkRequest, QSslConfiguration | |
| 13 | |
| 14 try: | |
| 15 from PyQt5.QtNetwork import QSslConfiguration # __IGNORE_WARNING__ | |
| 16 SSL_AVAILABLE = True | |
| 17 except ImportError: | |
| 18 SSL_AVAILABLE = False | |
| 19 | |
| 20 import WebBrowser.WebBrowserWindow | |
| 21 | |
| 22 | |
| 23 class WebIconLoader(QObject): | |
| 24 """ | |
| 25 Class implementing a loader for web site icons. | |
| 26 | |
| 27 @signal iconLoaded(icon) emitted when the icon has been loaded | |
| 28 @signal sslConfiguration(config) emitted to pass the SSL data | |
| 29 @signal clearSslConfiguration() emitted to clear stored SSL data | |
| 30 """ | |
| 31 iconLoaded = pyqtSignal(QIcon) | |
| 32 if SSL_AVAILABLE: | |
| 33 sslConfiguration = pyqtSignal(QSslConfiguration) | |
| 34 clearSslConfiguration = pyqtSignal() | |
| 35 | |
| 36 def __init__(self, url, parent=None): | |
| 37 """ | |
| 38 Constructor | |
| 39 | |
| 40 @param url URL to fetch the icon from | |
| 41 @type QUrl | |
| 42 @param parent reference to the parent object | |
| 43 @type QObject | |
| 44 """ | |
| 45 super().__init__(parent) | |
| 46 | |
| 47 networkManager = ( | |
| 48 WebBrowser.WebBrowserWindow.WebBrowserWindow.networkManager() | |
| 49 ) | |
| 50 self.__reply = networkManager.get(QNetworkRequest(url)) | |
| 51 self.__reply.finished.connect(self.__finished) | |
| 52 | |
| 53 @pyqtSlot() | |
| 54 def __finished(self): | |
| 55 """ | |
| 56 Private slot handling the downloaded icon. | |
| 57 """ | |
| 58 # ignore any errors and emit an empty icon in this case | |
| 59 data = self.__reply.readAll() | |
| 60 icon = QIcon(QPixmap.fromImage(QImage.fromData(data))) | |
| 61 self.iconLoaded.emit(icon) | |
| 62 | |
| 63 if SSL_AVAILABLE: | |
| 64 if self.__reply.url().scheme().lower() == "https": | |
| 65 sslConfiguration = self.__reply.sslConfiguration() | |
| 66 self.sslConfiguration.emit(sslConfiguration) | |
| 67 else: | |
| 68 self.clearSslConfiguration.emit() | |
| 69 | |
| 70 self.__reply.deleteLater() | |
| 71 self.__reply = None |
