Mercurial Repositories > eric / file comparison
comparison: eric6/WebBrowser/Download/DownloadModel.py
eric6/WebBrowser/Download/DownloadModel.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) 2010 - 2019 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the download model. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 from PyQt5.QtCore import Qt, QAbstractListModel, QModelIndex, QMimeData, QUrl | |
| 13 | |
| 14 | |
| 15 class DownloadModel(QAbstractListModel): | |
| 16 """ | |
| 17 Class implementing the download model. | |
| 18 """ | |
| 19 def __init__(self, manager, parent=None): | |
| 20 """ | |
| 21 Constructor | |
| 22 | |
| 23 @param manager reference to the download manager | |
| 24 @type DownloadManager | |
| 25 @param parent reference to the parent object | |
| 26 @type QObject | |
| 27 """ | |
| 28 super(DownloadModel, self).__init__(parent) | |
| 29 | |
| 30 self.__manager = manager | |
| 31 | |
| 32 def data(self, index, role): | |
| 33 """ | |
| 34 Public method to get data from the model. | |
| 35 | |
| 36 @param index index to get data for | |
| 37 @type QModelIndex | |
| 38 @param role role of the data to retrieve | |
| 39 @type int | |
| 40 @return requested data | |
| 41 @rtype any | |
| 42 """ | |
| 43 if index.row() < 0 or index.row() >= self.rowCount(index.parent()): | |
| 44 return None | |
| 45 | |
| 46 if role == Qt.ToolTipRole: | |
| 47 if self.__manager.downloads()[index.row()]\ | |
| 48 .downloadedSuccessfully(): | |
| 49 return self.__manager.downloads()[index.row()].getInfoData() | |
| 50 | |
| 51 return None | |
| 52 | |
| 53 def rowCount(self, parent=None): | |
| 54 """ | |
| 55 Public method to get the number of rows of the model. | |
| 56 | |
| 57 @param parent parent index | |
| 58 @type QModelIndex | |
| 59 @return number of rows | |
| 60 @rtype int | |
| 61 """ | |
| 62 if parent is None: | |
| 63 parent = QModelIndex() | |
| 64 | |
| 65 if parent.isValid(): | |
| 66 return 0 | |
| 67 else: | |
| 68 return self.__manager.downloadsCount() | |
| 69 | |
| 70 def removeRows(self, row, count, parent=None): | |
| 71 """ | |
| 72 Public method to remove downloads from the model. | |
| 73 | |
| 74 @param row row of the first download to remove | |
| 75 @type int | |
| 76 @param count number of downloads to remove | |
| 77 @type int | |
| 78 @param parent index of the parent download node | |
| 79 @type QModelIndex | |
| 80 @return flag indicating successful removal | |
| 81 @rtype bool | |
| 82 """ | |
| 83 if parent is None: | |
| 84 parent = QModelIndex() | |
| 85 | |
| 86 if parent.isValid(): | |
| 87 return False | |
| 88 | |
| 89 if row < 0 or count <= 0 or row + count > self.rowCount(parent): | |
| 90 return False | |
| 91 | |
| 92 lastRow = row + count - 1 | |
| 93 for i in range(lastRow, row - 1, -1): | |
| 94 if not self.__manager.downloads()[i].downloading(): | |
| 95 self.beginRemoveRows(parent, i, i) | |
| 96 del self.__manager.downloads()[i] | |
| 97 self.endRemoveRows() | |
| 98 self.__manager.changeOccurred() | |
| 99 return True | |
| 100 | |
| 101 def flags(self, index): | |
| 102 """ | |
| 103 Public method to get flags for an item. | |
| 104 | |
| 105 @param index index of the node cell | |
| 106 @type QModelIndex | |
| 107 @return flags | |
| 108 @rtype Qt.ItemFlags | |
| 109 """ | |
| 110 if index.row() < 0 or index.row() >= self.rowCount(index.parent()): | |
| 111 return Qt.NoItemFlags | |
| 112 | |
| 113 defaultFlags = QAbstractListModel.flags(self, index) | |
| 114 | |
| 115 itm = self.__manager.downloads()[index.row()] | |
| 116 if itm.downloadedSuccessfully(): | |
| 117 return defaultFlags | Qt.ItemIsDragEnabled | |
| 118 | |
| 119 return defaultFlags | |
| 120 | |
| 121 def mimeData(self, indexes): | |
| 122 """ | |
| 123 Public method to return the mime data. | |
| 124 | |
| 125 @param indexes list of indexes | |
| 126 @type QModelIndexList | |
| 127 @return mime data | |
| 128 @rtype QMimeData | |
| 129 """ | |
| 130 mimeData = QMimeData() | |
| 131 urls = [] | |
| 132 for index in indexes: | |
| 133 if index.isValid(): | |
| 134 itm = self.__manager.downloads()[index.row()] | |
| 135 urls.append(QUrl.fromLocalFile(itm.absoluteFilePath())) | |
| 136 mimeData.setUrls(urls) | |
| 137 return mimeData |
