Mercurial Repositories > eric / file comparison
comparison: WebBrowser/OpenSearch/OpenSearchEngineModel.py
WebBrowser/OpenSearch/OpenSearchEngineModel.py
- branch
- QtWebEngine
- changeset 4741
- f9e1adc69076
- parent 4631
- 5c1a96925da4
- child 5389
- 9b1c800daff3
equal
deleted
inserted
replaced
| 4735:84e78ee0f361 | 4741:f9e1adc69076 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 - 2016 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a model for search engines. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 import re | |
| 13 | |
| 14 from PyQt5.QtCore import Qt, QUrl, QAbstractTableModel, QModelIndex | |
| 15 from PyQt5.QtGui import QPixmap, QIcon | |
| 16 | |
| 17 | |
| 18 class OpenSearchEngineModel(QAbstractTableModel): | |
| 19 """ | |
| 20 Class implementing a model for search engines. | |
| 21 """ | |
| 22 def __init__(self, manager, parent=None): | |
| 23 """ | |
| 24 Constructor | |
| 25 | |
| 26 @param manager reference to the search engine manager | |
| 27 (OpenSearchManager) | |
| 28 @param parent reference to the parent object (QObject) | |
| 29 """ | |
| 30 super(OpenSearchEngineModel, self).__init__(parent) | |
| 31 | |
| 32 self.__manager = manager | |
| 33 manager.changed.connect(self.__enginesChanged) | |
| 34 | |
| 35 self.__headers = [ | |
| 36 self.tr("Name"), | |
| 37 self.tr("Keywords"), | |
| 38 ] | |
| 39 | |
| 40 def removeRows(self, row, count, parent=QModelIndex()): | |
| 41 """ | |
| 42 Public method to remove entries from the model. | |
| 43 | |
| 44 @param row start row (integer) | |
| 45 @param count number of rows to remove (integer) | |
| 46 @param parent parent index (QModelIndex) | |
| 47 @return flag indicating success (boolean) | |
| 48 """ | |
| 49 if parent.isValid(): | |
| 50 return False | |
| 51 | |
| 52 if count <= 0: | |
| 53 return False | |
| 54 | |
| 55 if self.rowCount() <= 1: | |
| 56 return False | |
| 57 | |
| 58 lastRow = row + count - 1 | |
| 59 | |
| 60 self.beginRemoveRows(parent, row, lastRow) | |
| 61 | |
| 62 nameList = self.__manager.allEnginesNames() | |
| 63 for index in range(row, lastRow + 1): | |
| 64 self.__manager.removeEngine(nameList[index]) | |
| 65 | |
| 66 # removeEngine emits changed() | |
| 67 #self.endRemoveRows() | |
| 68 | |
| 69 return True | |
| 70 | |
| 71 def rowCount(self, parent=QModelIndex()): | |
| 72 """ | |
| 73 Public method to get the number of rows of the model. | |
| 74 | |
| 75 @param parent parent index (QModelIndex) | |
| 76 @return number of rows (integer) | |
| 77 """ | |
| 78 if parent.isValid(): | |
| 79 return 0 | |
| 80 else: | |
| 81 return self.__manager.enginesCount() | |
| 82 | |
| 83 def columnCount(self, parent=QModelIndex()): | |
| 84 """ | |
| 85 Public method to get the number of columns of the model. | |
| 86 | |
| 87 @param parent parent index (QModelIndex) | |
| 88 @return number of columns (integer) | |
| 89 """ | |
| 90 return 2 | |
| 91 | |
| 92 def flags(self, index): | |
| 93 """ | |
| 94 Public method to get flags for a model cell. | |
| 95 | |
| 96 @param index index of the model cell (QModelIndex) | |
| 97 @return flags (Qt.ItemFlags) | |
| 98 """ | |
| 99 if index.column() == 1: | |
| 100 return Qt.ItemIsEnabled | Qt.ItemIsSelectable | Qt.ItemIsEditable | |
| 101 else: | |
| 102 return Qt.ItemIsEnabled | Qt.ItemIsSelectable | |
| 103 | |
| 104 def data(self, index, role): | |
| 105 """ | |
| 106 Public method to get data from the model. | |
| 107 | |
| 108 @param index index to get data for (QModelIndex) | |
| 109 @param role role of the data to retrieve (integer) | |
| 110 @return requested data | |
| 111 """ | |
| 112 if index.row() >= self.__manager.enginesCount() or index.row() < 0: | |
| 113 return None | |
| 114 | |
| 115 engine = self.__manager.engine( | |
| 116 self.__manager.allEnginesNames()[index.row()]) | |
| 117 | |
| 118 if engine is None: | |
| 119 return None | |
| 120 | |
| 121 if index.column() == 0: | |
| 122 if role == Qt.DisplayRole: | |
| 123 return engine.name() | |
| 124 | |
| 125 elif role == Qt.DecorationRole: | |
| 126 image = engine.image() | |
| 127 if image.isNull(): | |
| 128 from WebBrowser.WebBrowserWindow import WebBrowserWindow | |
| 129 icon = WebBrowserWindow.icon(QUrl(engine.imageUrl())) | |
| 130 else: | |
| 131 icon = QIcon(QPixmap.fromImage(image)) | |
| 132 return icon | |
| 133 | |
| 134 elif role == Qt.ToolTipRole: | |
| 135 description = self.tr("<strong>Description:</strong> {0}")\ | |
| 136 .format(engine.description()) | |
| 137 if engine.providesSuggestions(): | |
| 138 description += "<br/>" | |
| 139 description += self.tr( | |
| 140 "<strong>Provides contextual suggestions</strong>") | |
| 141 | |
| 142 return description | |
| 143 elif index.column() == 1: | |
| 144 if role in [Qt.EditRole, Qt.DisplayRole]: | |
| 145 return ",".join(self.__manager.keywordsForEngine(engine)) | |
| 146 elif role == Qt.ToolTipRole: | |
| 147 return self.tr( | |
| 148 "Comma-separated list of keywords that may" | |
| 149 " be entered in the location bar followed by search terms" | |
| 150 " to search with this engine") | |
| 151 | |
| 152 return None | |
| 153 | |
| 154 def setData(self, index, value, role=Qt.EditRole): | |
| 155 """ | |
| 156 Public method to set the data of a model cell. | |
| 157 | |
| 158 @param index index of the model cell (QModelIndex) | |
| 159 @param value value to be set | |
| 160 @param role role of the data (integer) | |
| 161 @return flag indicating success (boolean) | |
| 162 """ | |
| 163 if not index.isValid() or index.column() != 1: | |
| 164 return False | |
| 165 | |
| 166 if index.row() >= self.rowCount() or index.row() < 0: | |
| 167 return False | |
| 168 | |
| 169 if role != Qt.EditRole: | |
| 170 return False | |
| 171 | |
| 172 engineName = self.__manager.allEnginesNames()[index.row()] | |
| 173 keywords = re.split("[ ,]+", value) | |
| 174 self.__manager.setKeywordsForEngine( | |
| 175 self.__manager.engine(engineName), keywords) | |
| 176 | |
| 177 return True | |
| 178 | |
| 179 def headerData(self, section, orientation, role=Qt.DisplayRole): | |
| 180 """ | |
| 181 Public method to get the header data. | |
| 182 | |
| 183 @param section section number (integer) | |
| 184 @param orientation header orientation (Qt.Orientation) | |
| 185 @param role data role (integer) | |
| 186 @return header data | |
| 187 """ | |
| 188 if orientation == Qt.Horizontal and role == Qt.DisplayRole: | |
| 189 try: | |
| 190 return self.__headers[section] | |
| 191 except IndexError: | |
| 192 pass | |
| 193 | |
| 194 return None | |
| 195 | |
| 196 def __enginesChanged(self): | |
| 197 """ | |
| 198 Private slot handling a change of the registered engines. | |
| 199 """ | |
| 200 self.beginResetModel() | |
| 201 self.endResetModel() |
