Mercurial Repositories > eric / file comparison
comparison: eric7/WebBrowser/Download/DownloadModel.py
eric7/WebBrowser/Download/DownloadModel.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8227
- 349308e84eeb
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2010 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the download model. | |
| 8 """ | |
| 9 | |
| 10 from PyQt5.QtCore import Qt, QAbstractListModel, QModelIndex, QMimeData, QUrl | |
| 11 | |
| 12 | |
| 13 class DownloadModel(QAbstractListModel): | |
| 14 """ | |
| 15 Class implementing the download model. | |
| 16 """ | |
| 17 def __init__(self, manager, parent=None): | |
| 18 """ | |
| 19 Constructor | |
| 20 | |
| 21 @param manager reference to the download manager | |
| 22 @type DownloadManager | |
| 23 @param parent reference to the parent object | |
| 24 @type QObject | |
| 25 """ | |
| 26 super().__init__(parent) | |
| 27 | |
| 28 self.__manager = manager | |
| 29 | |
| 30 def data(self, index, role): | |
| 31 """ | |
| 32 Public method to get data from the model. | |
| 33 | |
| 34 @param index index to get data for | |
| 35 @type QModelIndex | |
| 36 @param role role of the data to retrieve | |
| 37 @type int | |
| 38 @return requested data | |
| 39 @rtype any | |
| 40 """ | |
| 41 if index.row() < 0 or index.row() >= self.rowCount(index.parent()): | |
| 42 return None | |
| 43 | |
| 44 if ( | |
| 45 role == Qt.ItemDataRole.ToolTipRole and | |
| 46 self.__manager.downloads()[index.row()].downloadedSuccessfully() | |
| 47 ): | |
| 48 return self.__manager.downloads()[index.row()].getInfoData() | |
| 49 | |
| 50 return None | |
| 51 | |
| 52 def rowCount(self, parent=None): | |
| 53 """ | |
| 54 Public method to get the number of rows of the model. | |
| 55 | |
| 56 @param parent parent index | |
| 57 @type QModelIndex | |
| 58 @return number of rows | |
| 59 @rtype int | |
| 60 """ | |
| 61 if parent is None: | |
| 62 parent = QModelIndex() | |
| 63 | |
| 64 if parent.isValid(): | |
| 65 return 0 | |
| 66 else: | |
| 67 return self.__manager.downloadsCount() | |
| 68 | |
| 69 def removeRows(self, row, count, parent=None): | |
| 70 """ | |
| 71 Public method to remove downloads from the model. | |
| 72 | |
| 73 @param row row of the first download to remove | |
| 74 @type int | |
| 75 @param count number of downloads to remove | |
| 76 @type int | |
| 77 @param parent index of the parent download node | |
| 78 @type QModelIndex | |
| 79 @return flag indicating successful removal | |
| 80 @rtype bool | |
| 81 """ | |
| 82 if parent is None: | |
| 83 parent = QModelIndex() | |
| 84 | |
| 85 if parent.isValid(): | |
| 86 return False | |
| 87 | |
| 88 if row < 0 or count <= 0 or row + count > self.rowCount(parent): | |
| 89 return False | |
| 90 | |
| 91 lastRow = row + count - 1 | |
| 92 for i in range(lastRow, row - 1, -1): | |
| 93 if not self.__manager.downloads()[i].downloading(): | |
| 94 self.beginRemoveRows(parent, i, i) | |
| 95 del self.__manager.downloads()[i] | |
| 96 self.endRemoveRows() | |
| 97 self.__manager.changeOccurred() | |
| 98 return True | |
| 99 | |
| 100 def flags(self, index): | |
| 101 """ | |
| 102 Public method to get flags for an item. | |
| 103 | |
| 104 @param index index of the node cell | |
| 105 @type QModelIndex | |
| 106 @return flags | |
| 107 @rtype Qt.ItemFlags | |
| 108 """ | |
| 109 if index.row() < 0 or index.row() >= self.rowCount(index.parent()): | |
| 110 return Qt.ItemFlag.NoItemFlags | |
| 111 | |
| 112 defaultFlags = QAbstractListModel.flags(self, index) | |
| 113 | |
| 114 itm = self.__manager.downloads()[index.row()] | |
| 115 if itm.downloadedSuccessfully(): | |
| 116 return defaultFlags | Qt.ItemFlag.ItemIsDragEnabled | |
| 117 | |
| 118 return defaultFlags | |
| 119 | |
| 120 def mimeData(self, indexes): | |
| 121 """ | |
| 122 Public method to return the mime data. | |
| 123 | |
| 124 @param indexes list of indexes | |
| 125 @type QModelIndexList | |
| 126 @return mime data | |
| 127 @rtype QMimeData | |
| 128 """ | |
| 129 mimeData = QMimeData() | |
| 130 urls = [] | |
| 131 for index in indexes: | |
| 132 if index.isValid(): | |
| 133 itm = self.__manager.downloads()[index.row()] | |
| 134 urls.append(QUrl.fromLocalFile(itm.absoluteFilePath())) | |
| 135 mimeData.setUrls(urls) | |
| 136 return mimeData |
