Mercurial Repositories > eric / file comparison
comparison: eric7/WebBrowser/UserAgent/UserAgentModel.py
eric7/WebBrowser/UserAgent/UserAgentModel.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8243
- cc717c2ae956
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2012 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a model for user agent management. | |
| 8 """ | |
| 9 | |
| 10 import contextlib | |
| 11 | |
| 12 from PyQt5.QtCore import Qt, QModelIndex, QAbstractTableModel | |
| 13 | |
| 14 | |
| 15 class UserAgentModel(QAbstractTableModel): | |
| 16 """ | |
| 17 Class implementing a model for user agent management. | |
| 18 """ | |
| 19 def __init__(self, manager, parent=None): | |
| 20 """ | |
| 21 Constructor | |
| 22 | |
| 23 @param manager reference to the user agent manager (UserAgentManager) | |
| 24 @param parent reference to the parent object (QObject) | |
| 25 """ | |
| 26 super().__init__(parent) | |
| 27 | |
| 28 self.__manager = manager | |
| 29 self.__manager.changed.connect(self.__userAgentsChanged) | |
| 30 | |
| 31 self.__headers = [ | |
| 32 self.tr("Host"), | |
| 33 self.tr("User Agent String"), | |
| 34 ] | |
| 35 | |
| 36 def __userAgentsChanged(self): | |
| 37 """ | |
| 38 Private slot handling a change of the registered user agent strings. | |
| 39 """ | |
| 40 self.beginResetModel() | |
| 41 self.endResetModel() | |
| 42 | |
| 43 def removeRows(self, row, count, parent=None): | |
| 44 """ | |
| 45 Public method to remove entries from the model. | |
| 46 | |
| 47 @param row start row (integer) | |
| 48 @param count number of rows to remove (integer) | |
| 49 @param parent parent index (QModelIndex) | |
| 50 @return flag indicating success (boolean) | |
| 51 """ | |
| 52 if parent is None: | |
| 53 parent = QModelIndex() | |
| 54 | |
| 55 if parent.isValid(): | |
| 56 return False | |
| 57 | |
| 58 if count <= 0: | |
| 59 return False | |
| 60 | |
| 61 lastRow = row + count - 1 | |
| 62 | |
| 63 self.beginRemoveRows(parent, row, lastRow) | |
| 64 | |
| 65 hostsList = self.__manager.allHostNames() | |
| 66 for index in range(row, lastRow + 1): | |
| 67 self.__manager.removeUserAgent(hostsList[index]) | |
| 68 | |
| 69 return True | |
| 70 | |
| 71 def rowCount(self, parent=None): | |
| 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 is None: | |
| 79 parent = QModelIndex() | |
| 80 | |
| 81 if parent.isValid(): | |
| 82 return 0 | |
| 83 else: | |
| 84 return self.__manager.hostsCount() | |
| 85 | |
| 86 def columnCount(self, parent=None): | |
| 87 """ | |
| 88 Public method to get the number of columns of the model. | |
| 89 | |
| 90 @param parent parent index (QModelIndex) (Unused) | |
| 91 @return number of columns (integer) | |
| 92 """ | |
| 93 return len(self.__headers) | |
| 94 | |
| 95 def data(self, index, role): | |
| 96 """ | |
| 97 Public method to get data from the model. | |
| 98 | |
| 99 @param index index to get data for (QModelIndex) | |
| 100 @param role role of the data to retrieve (integer) | |
| 101 @return requested data | |
| 102 """ | |
| 103 if index.row() >= self.__manager.hostsCount() or index.row() < 0: | |
| 104 return None | |
| 105 | |
| 106 host = self.__manager.allHostNames()[index.row()] | |
| 107 userAgent = self.__manager.userAgent(host) | |
| 108 | |
| 109 if userAgent is None: | |
| 110 return None | |
| 111 | |
| 112 if role == Qt.ItemDataRole.DisplayRole: | |
| 113 if index.column() == 0: | |
| 114 return host | |
| 115 elif index.column() == 1: | |
| 116 return userAgent | |
| 117 | |
| 118 return None | |
| 119 | |
| 120 def headerData(self, section, orientation, | |
| 121 role=Qt.ItemDataRole.DisplayRole): | |
| 122 """ | |
| 123 Public method to get the header data. | |
| 124 | |
| 125 @param section section number (integer) | |
| 126 @param orientation header orientation (Qt.Orientation) | |
| 127 @param role data role (Qt.ItemDataRole) | |
| 128 @return header data | |
| 129 """ | |
| 130 if ( | |
| 131 orientation == Qt.Orientation.Horizontal and | |
| 132 role == Qt.ItemDataRole.DisplayRole | |
| 133 ): | |
| 134 with contextlib.suppress(IndexError): | |
| 135 return self.__headers[section] | |
| 136 | |
| 137 return None |
