Mercurial Repositories > eric / file comparison
comparison: src/eric7/WebBrowser/SearchWidget.py
src/eric7/WebBrowser/SearchWidget.py
- branch
- eric7
- changeset 9209
- b99e7fd55fd3
- parent 8881
- 54e42bc2437a
- child 9221
- bf71ee032bb4
equal
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| 9208:3fc8dfeb6ebe | 9209:b99e7fd55fd3 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 - 2022 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the search bar for the web browser. | |
| 8 """ | |
| 9 | |
| 10 from PyQt6.QtCore import pyqtSlot, Qt | |
| 11 from PyQt6.QtGui import QPalette | |
| 12 from PyQt6.QtWidgets import QWidget | |
| 13 | |
| 14 from .Ui_SearchWidget import Ui_SearchWidget | |
| 15 | |
| 16 import UI.PixmapCache | |
| 17 | |
| 18 | |
| 19 class SearchWidget(QWidget, Ui_SearchWidget): | |
| 20 """ | |
| 21 Class implementing the search bar for the web browser. | |
| 22 """ | |
| 23 def __init__(self, mainWindow, parent=None): | |
| 24 """ | |
| 25 Constructor | |
| 26 | |
| 27 @param mainWindow reference to the main window (QMainWindow) | |
| 28 @param parent parent widget of this dialog (QWidget) | |
| 29 """ | |
| 30 super().__init__(parent) | |
| 31 self.setupUi(self) | |
| 32 | |
| 33 self.__mainWindow = mainWindow | |
| 34 | |
| 35 self.closeButton.setIcon(UI.PixmapCache.getIcon("close")) | |
| 36 self.findPrevButton.setIcon(UI.PixmapCache.getIcon("1leftarrow")) | |
| 37 self.findNextButton.setIcon(UI.PixmapCache.getIcon("1rightarrow")) | |
| 38 | |
| 39 self.__defaultBaseColor = ( | |
| 40 self.findtextCombo.lineEdit().palette().color( | |
| 41 QPalette.ColorRole.Base) | |
| 42 ) | |
| 43 self.__defaultTextColor = ( | |
| 44 self.findtextCombo.lineEdit().palette().color( | |
| 45 QPalette.ColorRole.Text) | |
| 46 ) | |
| 47 | |
| 48 self.__findHistory = [] | |
| 49 self.__havefound = False | |
| 50 self.__findBackwards = False | |
| 51 | |
| 52 self.findtextCombo.setCompleter(None) | |
| 53 self.findtextCombo.lineEdit().returnPressed.connect( | |
| 54 self.__findByReturnPressed) | |
| 55 self.findtextCombo.lineEdit().textEdited.connect( | |
| 56 self.__searchTextEdited) | |
| 57 | |
| 58 def on_findtextCombo_editTextChanged(self, txt): | |
| 59 """ | |
| 60 Private slot to enable/disable the find buttons. | |
| 61 | |
| 62 @param txt text of the combobox (string) | |
| 63 """ | |
| 64 self.findPrevButton.setEnabled(txt != "") | |
| 65 self.findNextButton.setEnabled(txt != "") | |
| 66 | |
| 67 def __searchTextEdited(self, txt): | |
| 68 """ | |
| 69 Private slot to perform an incremental search. | |
| 70 | |
| 71 @param txt current text of the search combos line edit (string) | |
| 72 (unused) | |
| 73 """ | |
| 74 self.__findNextPrev() | |
| 75 | |
| 76 def __findNextPrev(self): | |
| 77 """ | |
| 78 Private slot to find the next occurrence of text. | |
| 79 """ | |
| 80 self.infoLabel.clear() | |
| 81 self.__setFindtextComboBackground(False) | |
| 82 | |
| 83 if not self.findtextCombo.currentText(): | |
| 84 return | |
| 85 | |
| 86 self.__mainWindow.currentBrowser().findNextPrev( | |
| 87 self.findtextCombo.currentText(), | |
| 88 self.caseCheckBox.isChecked(), | |
| 89 self.__findBackwards, | |
| 90 self.__findNextPrevCallback) | |
| 91 | |
| 92 def __findNextPrevCallback(self, result): | |
| 93 """ | |
| 94 Private method to process the result of the last search. | |
| 95 | |
| 96 @param result reference to the search result | |
| 97 @type QWebEngineFindTextResult | |
| 98 """ | |
| 99 if result.numberOfMatches() == 0: | |
| 100 self.infoLabel.setText(self.tr("Expression was not found.")) | |
| 101 self.__setFindtextComboBackground(True) | |
| 102 | |
| 103 @pyqtSlot() | |
| 104 def on_findNextButton_clicked(self): | |
| 105 """ | |
| 106 Private slot to find the next occurrence. | |
| 107 """ | |
| 108 txt = self.findtextCombo.currentText() | |
| 109 | |
| 110 # This moves any previous occurrence of this statement to the head | |
| 111 # of the list and updates the combobox | |
| 112 if txt in self.__findHistory: | |
| 113 self.__findHistory.remove(txt) | |
| 114 self.__findHistory.insert(0, txt) | |
| 115 self.findtextCombo.clear() | |
| 116 self.findtextCombo.addItems(self.__findHistory) | |
| 117 | |
| 118 self.__findBackwards = False | |
| 119 self.__findNextPrev() | |
| 120 | |
| 121 def findNext(self): | |
| 122 """ | |
| 123 Public slot to find the next occurrence. | |
| 124 """ | |
| 125 if not self.__havefound or not self.findtextCombo.currentText(): | |
| 126 self.showFind() | |
| 127 return | |
| 128 | |
| 129 self.on_findNextButton_clicked() | |
| 130 | |
| 131 @pyqtSlot() | |
| 132 def on_findPrevButton_clicked(self): | |
| 133 """ | |
| 134 Private slot to find the previous occurrence. | |
| 135 """ | |
| 136 txt = self.findtextCombo.currentText() | |
| 137 | |
| 138 # This moves any previous occurrence of this statement to the head | |
| 139 # of the list and updates the combobox | |
| 140 if txt in self.__findHistory: | |
| 141 self.__findHistory.remove(txt) | |
| 142 self.__findHistory.insert(0, txt) | |
| 143 self.findtextCombo.clear() | |
| 144 self.findtextCombo.addItems(self.__findHistory) | |
| 145 | |
| 146 self.__findBackwards = True | |
| 147 self.__findNextPrev() | |
| 148 | |
| 149 def findPrevious(self): | |
| 150 """ | |
| 151 Public slot to find the previous occurrence. | |
| 152 """ | |
| 153 if not self.__havefound or not self.findtextCombo.currentText(): | |
| 154 self.showFind() | |
| 155 return | |
| 156 | |
| 157 self.on_findPrevButton_clicked() | |
| 158 | |
| 159 def __findByReturnPressed(self): | |
| 160 """ | |
| 161 Private slot to handle the returnPressed signal of the findtext | |
| 162 combobox. | |
| 163 """ | |
| 164 if self.__findBackwards: | |
| 165 self.on_findPrevButton_clicked() | |
| 166 else: | |
| 167 self.on_findNextButton_clicked() | |
| 168 | |
| 169 def showFind(self): | |
| 170 """ | |
| 171 Public method to display this dialog. | |
| 172 """ | |
| 173 self.__havefound = True | |
| 174 self.__findBackwards = False | |
| 175 | |
| 176 self.findtextCombo.clear() | |
| 177 self.findtextCombo.addItems(self.__findHistory) | |
| 178 self.findtextCombo.setEditText('') | |
| 179 self.findtextCombo.setFocus() | |
| 180 | |
| 181 self.caseCheckBox.setChecked(False) | |
| 182 | |
| 183 if self.__mainWindow.currentBrowser().hasSelection(): | |
| 184 self.findtextCombo.setEditText( | |
| 185 self.__mainWindow.currentBrowser().selectedText()) | |
| 186 | |
| 187 self.__setFindtextComboBackground(False) | |
| 188 self.show() | |
| 189 | |
| 190 def __resetSearch(self): | |
| 191 """ | |
| 192 Private method to reset the last search. | |
| 193 """ | |
| 194 self.__mainWindow.currentBrowser().findText("") | |
| 195 | |
| 196 @pyqtSlot() | |
| 197 def on_closeButton_clicked(self): | |
| 198 """ | |
| 199 Private slot to close the widget. | |
| 200 """ | |
| 201 self.__resetSearch() | |
| 202 self.close() | |
| 203 | |
| 204 def keyPressEvent(self, event): | |
| 205 """ | |
| 206 Protected slot to handle key press events. | |
| 207 | |
| 208 @param event reference to the key press event (QKeyEvent) | |
| 209 """ | |
| 210 if event.key() == Qt.Key.Key_Escape: | |
| 211 cb = self.__mainWindow.currentBrowser() | |
| 212 if cb: | |
| 213 cb.setFocus(Qt.FocusReason.ActiveWindowFocusReason) | |
| 214 event.accept() | |
| 215 self.__resetSearch() | |
| 216 self.close() | |
| 217 | |
| 218 def __setFindtextComboBackground(self, error): | |
| 219 """ | |
| 220 Private slot to change the findtext combo background to indicate | |
| 221 errors. | |
| 222 | |
| 223 @param error flag indicating an error condition (boolean) | |
| 224 """ | |
| 225 styleSheet = ( | |
| 226 "color: #000000; background-color: #ff6666" | |
| 227 if error else | |
| 228 f"color: {self.__defaultTextColor};" | |
| 229 f" background-color: {self.__defaultBaseColor}" | |
| 230 ) | |
| 231 self.findtextCombo.setStyleSheet(styleSheet) |
