Mercurial Repositories > eric / file comparison
comparison: eric6/WebBrowser/SearchWidget.py
eric6/WebBrowser/SearchWidget.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 the search bar for the web browser. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 from PyQt5.QtCore import pyqtSlot, Qt | |
| 13 from PyQt5.QtGui import QPalette, QBrush, QColor | |
| 14 from PyQt5.QtWidgets import QWidget | |
| 15 | |
| 16 from .Ui_SearchWidget import Ui_SearchWidget | |
| 17 | |
| 18 import UI.PixmapCache | |
| 19 | |
| 20 | |
| 21 class SearchWidget(QWidget, Ui_SearchWidget): | |
| 22 """ | |
| 23 Class implementing the search bar for the web browser. | |
| 24 """ | |
| 25 def __init__(self, mainWindow, parent=None): | |
| 26 """ | |
| 27 Constructor | |
| 28 | |
| 29 @param mainWindow reference to the main window (QMainWindow) | |
| 30 @param parent parent widget of this dialog (QWidget) | |
| 31 """ | |
| 32 super(SearchWidget, self).__init__(parent) | |
| 33 self.setupUi(self) | |
| 34 | |
| 35 self.__mainWindow = mainWindow | |
| 36 | |
| 37 self.closeButton.setIcon(UI.PixmapCache.getIcon("close.png")) | |
| 38 self.findPrevButton.setIcon(UI.PixmapCache.getIcon("1leftarrow.png")) | |
| 39 self.findNextButton.setIcon(UI.PixmapCache.getIcon("1rightarrow.png")) | |
| 40 | |
| 41 self.__defaultBaseColor = \ | |
| 42 self.findtextCombo.lineEdit().palette().color(QPalette.Base) | |
| 43 self.__defaultTextColor = \ | |
| 44 self.findtextCombo.lineEdit().palette().color(QPalette.Text) | |
| 45 | |
| 46 self.__findHistory = [] | |
| 47 self.__havefound = False | |
| 48 self.__findBackwards = False | |
| 49 | |
| 50 self.findtextCombo.setCompleter(None) | |
| 51 self.findtextCombo.lineEdit().returnPressed.connect( | |
| 52 self.__findByReturnPressed) | |
| 53 self.findtextCombo.lineEdit().textEdited.connect( | |
| 54 self.__searchTextEdited) | |
| 55 | |
| 56 def on_findtextCombo_editTextChanged(self, txt): | |
| 57 """ | |
| 58 Private slot to enable/disable the find buttons. | |
| 59 | |
| 60 @param txt text of the combobox (string) | |
| 61 """ | |
| 62 self.findPrevButton.setEnabled(txt != "") | |
| 63 self.findNextButton.setEnabled(txt != "") | |
| 64 | |
| 65 def __searchTextEdited(self, txt): | |
| 66 """ | |
| 67 Private slot to perform an incremental search. | |
| 68 | |
| 69 @param txt current text of the search combos line edit (string) | |
| 70 (unused) | |
| 71 """ | |
| 72 self.__findNextPrev() | |
| 73 | |
| 74 def __findNextPrev(self): | |
| 75 """ | |
| 76 Private slot to find the next occurrence of text. | |
| 77 """ | |
| 78 self.infoLabel.clear() | |
| 79 self.__setFindtextComboBackground(False) | |
| 80 | |
| 81 if not self.findtextCombo.currentText(): | |
| 82 return | |
| 83 | |
| 84 self.__mainWindow.currentBrowser().findNextPrev( | |
| 85 self.findtextCombo.currentText(), | |
| 86 self.caseCheckBox.isChecked(), | |
| 87 self.__findBackwards, | |
| 88 self.__findNextPrevCallback) | |
| 89 | |
| 90 def __findNextPrevCallback(self, found): | |
| 91 """ | |
| 92 Private method to process the result of the last search. | |
| 93 | |
| 94 @param found flag indicating if the last search succeeded | |
| 95 @type bool | |
| 96 """ | |
| 97 if not found: | |
| 98 self.infoLabel.setText(self.tr("Expression was not found.")) | |
| 99 self.__setFindtextComboBackground(True) | |
| 100 | |
| 101 @pyqtSlot() | |
| 102 def on_findNextButton_clicked(self): | |
| 103 """ | |
| 104 Private slot to find the next occurrence. | |
| 105 """ | |
| 106 txt = self.findtextCombo.currentText() | |
| 107 | |
| 108 # This moves any previous occurrence of this statement to the head | |
| 109 # of the list and updates the combobox | |
| 110 if txt in self.__findHistory: | |
| 111 self.__findHistory.remove(txt) | |
| 112 self.__findHistory.insert(0, txt) | |
| 113 self.findtextCombo.clear() | |
| 114 self.findtextCombo.addItems(self.__findHistory) | |
| 115 | |
| 116 self.__findBackwards = False | |
| 117 self.__findNextPrev() | |
| 118 | |
| 119 def findNext(self): | |
| 120 """ | |
| 121 Public slot to find the next occurrence. | |
| 122 """ | |
| 123 if not self.__havefound or not self.findtextCombo.currentText(): | |
| 124 self.showFind() | |
| 125 return | |
| 126 | |
| 127 self.on_findNextButton_clicked() | |
| 128 | |
| 129 @pyqtSlot() | |
| 130 def on_findPrevButton_clicked(self): | |
| 131 """ | |
| 132 Private slot to find the previous occurrence. | |
| 133 """ | |
| 134 txt = self.findtextCombo.currentText() | |
| 135 | |
| 136 # This moves any previous occurrence of this statement to the head | |
| 137 # of the list and updates the combobox | |
| 138 if txt in self.__findHistory: | |
| 139 self.__findHistory.remove(txt) | |
| 140 self.__findHistory.insert(0, txt) | |
| 141 self.findtextCombo.clear() | |
| 142 self.findtextCombo.addItems(self.__findHistory) | |
| 143 | |
| 144 self.__findBackwards = True | |
| 145 self.__findNextPrev() | |
| 146 | |
| 147 def findPrevious(self): | |
| 148 """ | |
| 149 Public slot to find the previous occurrence. | |
| 150 """ | |
| 151 if not self.__havefound or not self.findtextCombo.currentText(): | |
| 152 self.showFind() | |
| 153 return | |
| 154 | |
| 155 self.on_findPrevButton_clicked() | |
| 156 | |
| 157 def __findByReturnPressed(self): | |
| 158 """ | |
| 159 Private slot to handle the returnPressed signal of the findtext | |
| 160 combobox. | |
| 161 """ | |
| 162 if self.__findBackwards: | |
| 163 self.on_findPrevButton_clicked() | |
| 164 else: | |
| 165 self.on_findNextButton_clicked() | |
| 166 | |
| 167 def showFind(self): | |
| 168 """ | |
| 169 Public method to display this dialog. | |
| 170 """ | |
| 171 self.__havefound = True | |
| 172 self.__findBackwards = False | |
| 173 | |
| 174 self.findtextCombo.clear() | |
| 175 self.findtextCombo.addItems(self.__findHistory) | |
| 176 self.findtextCombo.setEditText('') | |
| 177 self.findtextCombo.setFocus() | |
| 178 | |
| 179 self.caseCheckBox.setChecked(False) | |
| 180 | |
| 181 if self.__mainWindow.currentBrowser().hasSelection(): | |
| 182 self.findtextCombo.setEditText( | |
| 183 self.__mainWindow.currentBrowser().selectedText()) | |
| 184 | |
| 185 self.__setFindtextComboBackground(False) | |
| 186 self.show() | |
| 187 | |
| 188 def __resetSearch(self): | |
| 189 """ | |
| 190 Private method to reset the last search. | |
| 191 """ | |
| 192 self.__mainWindow.currentBrowser().findText("") | |
| 193 | |
| 194 @pyqtSlot() | |
| 195 def on_closeButton_clicked(self): | |
| 196 """ | |
| 197 Private slot to close the widget. | |
| 198 """ | |
| 199 self.__resetSearch() | |
| 200 self.close() | |
| 201 | |
| 202 def keyPressEvent(self, event): | |
| 203 """ | |
| 204 Protected slot to handle key press events. | |
| 205 | |
| 206 @param event reference to the key press event (QKeyEvent) | |
| 207 """ | |
| 208 if event.key() == Qt.Key_Escape: | |
| 209 cb = self.__mainWindow.currentBrowser() | |
| 210 if cb: | |
| 211 cb.setFocus(Qt.ActiveWindowFocusReason) | |
| 212 event.accept() | |
| 213 self.__resetSearch() | |
| 214 self.close() | |
| 215 | |
| 216 def __setFindtextComboBackground(self, error): | |
| 217 """ | |
| 218 Private slot to change the findtext combo background to indicate | |
| 219 errors. | |
| 220 | |
| 221 @param error flag indicating an error condition (boolean) | |
| 222 """ | |
| 223 le = self.findtextCombo.lineEdit() | |
| 224 p = le.palette() | |
| 225 if error: | |
| 226 p.setBrush(QPalette.Base, QBrush(QColor("#FF6666"))) | |
| 227 p.setBrush(QPalette.Text, QBrush(QColor("#000000"))) | |
| 228 else: | |
| 229 p.setBrush(QPalette.Base, self.__defaultBaseColor) | |
| 230 p.setBrush(QPalette.Text, self.__defaultTextColor) | |
| 231 le.setPalette(p) | |
| 232 le.update() |
