Mercurial Repositories > eric / file comparison
comparison: WebBrowser/QtHelp/HelpSearchWidget.py
WebBrowser/QtHelp/HelpSearchWidget.py
- branch
- QtWebEngine
- changeset 4875
- 4ee26909ac0d
- parent 4631
- 5c1a96925da4
- child 5038
- df7103c3f2a6
equal
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| 4870:72901685681d | 4875:4ee26909ac0d |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 - 2016 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a window for showing the QtHelp index. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 from PyQt5.QtCore import pyqtSignal, Qt, QEvent, QUrl | |
| 13 from PyQt5.QtWidgets import QWidget, QVBoxLayout, QTextBrowser, QApplication, \ | |
| 14 QMenu | |
| 15 | |
| 16 | |
| 17 class HelpSearchWidget(QWidget): | |
| 18 """ | |
| 19 Class implementing a window for showing the QtHelp index. | |
| 20 | |
| 21 @signal linkActivated(QUrl) emitted when a search result entry is activated | |
| 22 @signal escapePressed() emitted when the ESC key was pressed | |
| 23 """ | |
| 24 linkActivated = pyqtSignal(QUrl) | |
| 25 escapePressed = pyqtSignal() | |
| 26 | |
| 27 def __init__(self, engine, mainWindow, parent=None): | |
| 28 """ | |
| 29 Constructor | |
| 30 | |
| 31 @param engine reference to the help search engine (QHelpSearchEngine) | |
| 32 @param mainWindow reference to the main window object (QMainWindow) | |
| 33 @param parent reference to the parent widget (QWidget) | |
| 34 """ | |
| 35 super(HelpSearchWidget, self).__init__(parent) | |
| 36 | |
| 37 self.__engine = engine | |
| 38 self.__mw = mainWindow | |
| 39 | |
| 40 self.__layout = QVBoxLayout(self) | |
| 41 | |
| 42 self.__result = self.__engine.resultWidget() | |
| 43 self.__query = self.__engine.queryWidget() | |
| 44 | |
| 45 self.__layout.addWidget(self.__query) | |
| 46 self.__layout.addWidget(self.__result) | |
| 47 | |
| 48 self.setFocusProxy(self.__query) | |
| 49 | |
| 50 self.__query.search.connect(self.__search) | |
| 51 self.__result.requestShowLink.connect(self.linkActivated) | |
| 52 | |
| 53 self.__engine.searchingStarted.connect(self.__searchingStarted) | |
| 54 self.__engine.searchingFinished.connect(self.__searchingFinished) | |
| 55 | |
| 56 self.__browser = self.__result.findChildren(QTextBrowser)[0] | |
| 57 if self.__browser: | |
| 58 self.__browser.viewport().installEventFilter(self) | |
| 59 | |
| 60 def __search(self): | |
| 61 """ | |
| 62 Private slot to perform a search of the database. | |
| 63 """ | |
| 64 query = self.__query.query() | |
| 65 self.__engine.search(query) | |
| 66 | |
| 67 def __searchingStarted(self): | |
| 68 """ | |
| 69 Private slot to handle the start of a search. | |
| 70 """ | |
| 71 QApplication.setOverrideCursor(Qt.WaitCursor) | |
| 72 | |
| 73 def __searchingFinished(self, hits): | |
| 74 """ | |
| 75 Private slot to handle the end of the search. | |
| 76 | |
| 77 @param hits number of hits (integer) (unused) | |
| 78 """ | |
| 79 QApplication.restoreOverrideCursor() | |
| 80 | |
| 81 def eventFilter(self, watched, event): | |
| 82 """ | |
| 83 Public method called to filter the event queue. | |
| 84 | |
| 85 @param watched the QObject being watched (QObject) | |
| 86 @param event the event that occurred (QEvent) | |
| 87 @return flag indicating whether the event was handled (boolean) | |
| 88 """ | |
| 89 if self.__browser and watched == self.__browser.viewport() and \ | |
| 90 event.type() == QEvent.MouseButtonRelease: | |
| 91 link = self.__result.linkAt(event.pos()) | |
| 92 if not link.isEmpty() and link.isValid(): | |
| 93 ctrl = event.modifiers() & Qt.ControlModifier | |
| 94 if (event.button() == Qt.LeftButton and ctrl) or \ | |
| 95 event.button() == Qt.MidButton: | |
| 96 self.__mw.newTab(link) | |
| 97 | |
| 98 return QWidget.eventFilter(self, watched, event) | |
| 99 | |
| 100 def keyPressEvent(self, evt): | |
| 101 """ | |
| 102 Protected method handling key press events. | |
| 103 | |
| 104 @param evt reference to the key press event (QKeyEvent) | |
| 105 """ | |
| 106 if evt.key() == Qt.Key_Escape: | |
| 107 self.escapePressed.emit() | |
| 108 else: | |
| 109 evt.ignore() | |
| 110 | |
| 111 def contextMenuEvent(self, evt): | |
| 112 """ | |
| 113 Protected method handling context menu events. | |
| 114 | |
| 115 @param evt reference to the context menu event (QContextMenuEvent) | |
| 116 """ | |
| 117 point = evt.globalPos() | |
| 118 | |
| 119 if self.__browser: | |
| 120 point = self.__browser.mapFromGlobal(point) | |
| 121 if not self.__browser.rect().contains(point, True): | |
| 122 return | |
| 123 link = QUrl(self.__browser.anchorAt(point)) | |
| 124 else: | |
| 125 point = self.__result.mapFromGlobal(point) | |
| 126 link = self.__result.linkAt(point) | |
| 127 | |
| 128 if link.isEmpty() or not link.isValid(): | |
| 129 return | |
| 130 | |
| 131 menu = QMenu() | |
| 132 curTab = menu.addAction(self.tr("Open Link")) | |
| 133 newTab = menu.addAction(self.tr("Open Link in New Tab")) | |
| 134 menu.move(evt.globalPos()) | |
| 135 act = menu.exec_() | |
| 136 if act == curTab: | |
| 137 self.linkActivated.emit(link) | |
| 138 elif act == newTab: | |
| 139 self.__mw.newTab(link) |
