Mercurial Repositories > eric / file comparison
comparison: eric7/WebBrowser/WebInspector.py
eric7/WebBrowser/WebInspector.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) 2015 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a QWebEngineView to load the web inspector in. | |
| 8 """ | |
| 9 | |
| 10 from PyQt5.QtCore import pyqtSignal, QSize | |
| 11 from PyQt5.QtWebEngineWidgets import ( | |
| 12 QWebEngineView, QWebEnginePage, QWebEngineSettings | |
| 13 ) | |
| 14 | |
| 15 import Preferences | |
| 16 | |
| 17 _VIEWS = [] | |
| 18 | |
| 19 | |
| 20 class WebInspector(QWebEngineView): | |
| 21 """ | |
| 22 Class implementing a QWebEngineView to load the web inspector in. | |
| 23 | |
| 24 @signal inspectorClosed emitted to indicate the closing of the inspector | |
| 25 window | |
| 26 """ | |
| 27 inspectorClosed = pyqtSignal() | |
| 28 | |
| 29 def __init__(self, parent=None): | |
| 30 """ | |
| 31 Constructor | |
| 32 | |
| 33 @param parent reference to the parent widget | |
| 34 @type QWidget | |
| 35 """ | |
| 36 super().__init__(parent) | |
| 37 | |
| 38 self.__view = None | |
| 39 self.__inspectElement = False | |
| 40 | |
| 41 self.__reloadGeometry() | |
| 42 | |
| 43 registerView(self) | |
| 44 | |
| 45 self.page().windowCloseRequested.connect(self.close) | |
| 46 self.page().loadFinished.connect(self.__loadFinished) | |
| 47 | |
| 48 def closeEvent(self, evt): | |
| 49 """ | |
| 50 Protected method to save the geometry when closed. | |
| 51 | |
| 52 @param evt event object | |
| 53 @type QCloseEvent | |
| 54 """ | |
| 55 Preferences.setGeometry("WebInspectorGeometry", self.saveGeometry()) | |
| 56 super().closeEvent(evt) | |
| 57 | |
| 58 if evt.isAccepted(): | |
| 59 self.inspectorClosed.emit() | |
| 60 | |
| 61 def __reloadGeometry(self): | |
| 62 """ | |
| 63 Private method to restore the geometry. | |
| 64 """ | |
| 65 geom = Preferences.getGeometry("WebInspectorGeometry") | |
| 66 if geom.isEmpty(): | |
| 67 s = QSize(600, 600) | |
| 68 self.resize(s) | |
| 69 else: | |
| 70 self.restoreGeometry(geom) | |
| 71 | |
| 72 def setView(self, view, inspectElement=False): | |
| 73 """ | |
| 74 Public method to connect a view to this inspector. | |
| 75 | |
| 76 @param view reference to the view object | |
| 77 @type WebBrowserView | |
| 78 @param inspectElement flag indicating to start a web inspection | |
| 79 @type bool | |
| 80 """ | |
| 81 self.__view = view | |
| 82 if not self.isEnabled(): | |
| 83 return | |
| 84 | |
| 85 self.__inspectElement = inspectElement | |
| 86 | |
| 87 self.page().setInspectedPage(self.__view.page()) | |
| 88 | |
| 89 def inspectElement(self): | |
| 90 """ | |
| 91 Public method to inspect an element. | |
| 92 """ | |
| 93 self.__inspectElement = True | |
| 94 | |
| 95 @classmethod | |
| 96 def isEnabled(cls): | |
| 97 """ | |
| 98 Class method to check, if the web inspector is enabled. | |
| 99 | |
| 100 @return flag indicating the enabled state | |
| 101 @rtype bool | |
| 102 """ | |
| 103 from WebBrowser.WebBrowserWindow import WebBrowserWindow | |
| 104 if not WebBrowserWindow.webSettings().testAttribute( | |
| 105 QWebEngineSettings.WebAttribute.JavascriptEnabled): | |
| 106 return False | |
| 107 | |
| 108 return True | |
| 109 | |
| 110 def __loadFinished(self): | |
| 111 """ | |
| 112 Private slot handling the finished signal. | |
| 113 """ | |
| 114 if self.__inspectElement: | |
| 115 self.__view.triggerPageAction( | |
| 116 QWebEnginePage.WebAction.InspectElement) | |
| 117 self.__inspectElement = False | |
| 118 | |
| 119 | |
| 120 def registerView(view): | |
| 121 """ | |
| 122 Function to register a view. | |
| 123 | |
| 124 @param view reference to the view | |
| 125 @type WebBrowserView | |
| 126 """ | |
| 127 if _VIEWS is None: | |
| 128 return | |
| 129 | |
| 130 _VIEWS.insert(0, view) | |
| 131 | |
| 132 | |
| 133 def unregisterView(view): | |
| 134 """ | |
| 135 Function to unregister a view. | |
| 136 | |
| 137 @param view reference to the view | |
| 138 @type WebBrowserView | |
| 139 """ | |
| 140 if _VIEWS is None: | |
| 141 return | |
| 142 | |
| 143 if view in _VIEWS: | |
| 144 _VIEWS.remove(view) | |
| 145 | |
| 146 | |
| 147 def pushView(view): | |
| 148 """ | |
| 149 Function to push a view to the front of the list. | |
| 150 | |
| 151 @param view reference to the view | |
| 152 @type WebBrowserView | |
| 153 """ | |
| 154 if _VIEWS is None: | |
| 155 return | |
| 156 | |
| 157 if view in _VIEWS: | |
| 158 _VIEWS.remove(view) | |
| 159 _VIEWS.insert(0, view) |
