Mercurial Repositories > eric / file comparison
comparison: eric6/WebBrowser/QtHelp/HelpSearchWidget.py
eric6/WebBrowser/QtHelp/HelpSearchWidget.py
- changeset 6942
- 2602857055c5
- parent 6645
- ad476851d7e0
- child 7229
- 53054eb5b15a
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| 6941:f99d60d6b59b | 6942:2602857055c5 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 - 2019 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, pyqtSlot, Qt, 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 escapePressed() emitted when the ESC key was pressed | |
| 22 @signal openUrl(QUrl, str) emitted to open a search result entry in the | |
| 23 current tab | |
| 24 @signal newTab(QUrl, str) emitted to open a search result entry in a | |
| 25 new tab | |
| 26 @signal newBackgroundTab(QUrl, str) emitted to open a search result entry | |
| 27 in a new background tab | |
| 28 @signal newWindow(QUrl, str) emitted to open a search result entry in a | |
| 29 new window | |
| 30 """ | |
| 31 escapePressed = pyqtSignal() | |
| 32 openUrl = pyqtSignal(QUrl) | |
| 33 newTab = pyqtSignal(QUrl) | |
| 34 newBackgroundTab = pyqtSignal(QUrl) | |
| 35 newWindow = pyqtSignal(QUrl) | |
| 36 | |
| 37 def __init__(self, engine, parent=None): | |
| 38 """ | |
| 39 Constructor | |
| 40 | |
| 41 @param engine reference to the help search engine (QHelpSearchEngine) | |
| 42 @param parent reference to the parent widget (QWidget) | |
| 43 """ | |
| 44 super(HelpSearchWidget, self).__init__(parent) | |
| 45 | |
| 46 self.__engine = engine | |
| 47 | |
| 48 self.__layout = QVBoxLayout(self) | |
| 49 | |
| 50 self.__result = self.__engine.resultWidget() | |
| 51 self.__query = self.__engine.queryWidget() | |
| 52 | |
| 53 self.__layout.addWidget(self.__query) | |
| 54 self.__layout.addWidget(self.__result) | |
| 55 | |
| 56 self.setFocusProxy(self.__query) | |
| 57 | |
| 58 self.__query.search.connect(self.__search) | |
| 59 self.__result.requestShowLink.connect(self.__linkActivated) | |
| 60 | |
| 61 self.__engine.searchingStarted.connect(self.__searchingStarted) | |
| 62 self.__engine.searchingFinished.connect(self.__searchingFinished) | |
| 63 | |
| 64 self.__browser = self.__result.findChildren(QTextBrowser)[0] | |
| 65 | |
| 66 def __search(self): | |
| 67 """ | |
| 68 Private slot to perform a search of the database. | |
| 69 """ | |
| 70 query = self.__query.query() | |
| 71 self.__engine.search(query) | |
| 72 | |
| 73 def __searchingStarted(self): | |
| 74 """ | |
| 75 Private slot to handle the start of a search. | |
| 76 """ | |
| 77 QApplication.setOverrideCursor(Qt.WaitCursor) | |
| 78 | |
| 79 def __searchingFinished(self, hits): | |
| 80 """ | |
| 81 Private slot to handle the end of the search. | |
| 82 | |
| 83 @param hits number of hits (integer) (unused) | |
| 84 """ | |
| 85 QApplication.restoreOverrideCursor() | |
| 86 | |
| 87 @pyqtSlot(QUrl) | |
| 88 def __linkActivated(self, url): | |
| 89 """ | |
| 90 Private slot handling the activation of an entry. | |
| 91 | |
| 92 @param url URL of the activated entry | |
| 93 @type QUrl | |
| 94 """ | |
| 95 if not url.isEmpty() and url.isValid(): | |
| 96 buttons = QApplication.mouseButtons() | |
| 97 modifiers = QApplication.keyboardModifiers() | |
| 98 | |
| 99 if buttons & Qt.MidButton: | |
| 100 self.newTab.emit(url) | |
| 101 else: | |
| 102 if modifiers & (Qt.ControlModifier | Qt.ShiftModifier) == \ | |
| 103 (Qt.ControlModifier | Qt.ShiftModifier): | |
| 104 self.newBackgroundTab.emit(url) | |
| 105 elif modifiers & Qt.ControlModifier: | |
| 106 self.newTab.emit(url) | |
| 107 elif modifiers & Qt.ShiftModifier: | |
| 108 self.newWindow.emit(url) | |
| 109 else: | |
| 110 self.openUrl.emit(url) | |
| 111 | |
| 112 def keyPressEvent(self, evt): | |
| 113 """ | |
| 114 Protected method handling key press events. | |
| 115 | |
| 116 @param evt reference to the key press event (QKeyEvent) | |
| 117 """ | |
| 118 if evt.key() == Qt.Key_Escape: | |
| 119 self.escapePressed.emit() | |
| 120 else: | |
| 121 evt.ignore() | |
| 122 | |
| 123 def contextMenuEvent(self, evt): | |
| 124 """ | |
| 125 Protected method handling context menu events. | |
| 126 | |
| 127 @param evt reference to the context menu event (QContextMenuEvent) | |
| 128 """ | |
| 129 point = evt.globalPos() | |
| 130 | |
| 131 if self.__browser: | |
| 132 point = self.__browser.mapFromGlobal(point) | |
| 133 if not self.__browser.rect().contains(point, True): | |
| 134 return | |
| 135 link = QUrl(self.__browser.anchorAt(point)) | |
| 136 else: | |
| 137 point = self.__result.mapFromGlobal(point) | |
| 138 link = self.__result.linkAt(point) | |
| 139 | |
| 140 if link.isEmpty() or not link.isValid(): | |
| 141 return | |
| 142 | |
| 143 menu = QMenu() | |
| 144 curTab = menu.addAction(self.tr("Open Link")) | |
| 145 newTab = menu.addAction(self.tr("Open Link in New Tab")) | |
| 146 newBackgroundTab = menu.addAction( | |
| 147 self.tr("Open Link in Background Tab")) | |
| 148 newWindow = menu.addAction(self.tr("Open Link in New Window")) | |
| 149 menu.move(evt.globalPos()) | |
| 150 act = menu.exec_() | |
| 151 if act == curTab: | |
| 152 self.openUrl.emit(link) | |
| 153 elif act == newTab: | |
| 154 self.newTab.emit(link) | |
| 155 elif act == newBackgroundTab: | |
| 156 self.newBackgroundTab.emit(link) | |
| 157 elif act == newWindow: | |
| 158 self.newWindow.emit(link) |
