Mercurial Repositories > eric / file comparison
comparison: eric6/Helpviewer/Download/DownloadModel.py
eric6/Helpviewer/Download/DownloadModel.py
- changeset 7220
- 5cf645f6daab
- parent 7218
- eaf2cf171f3a
- parent 7211
- 1c97f3142fa8
- child 7221
- 0485ccdf7877
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| 7218:eaf2cf171f3a | 7220:5cf645f6daab |
|---|---|
| 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 (DownloadManager) | |
| 24 @param parent reference to the parent object (QObject) | |
| 25 """ | |
| 26 super(DownloadModel, self).__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 (QModelIndex) | |
| 35 @param role role of the data to retrieve (integer) | |
| 36 @return requested data | |
| 37 """ | |
| 38 if index.row() < 0 or index.row() >= self.rowCount(index.parent()): | |
| 39 return None | |
| 40 | |
| 41 if role == Qt.ToolTipRole: | |
| 42 if self.__manager.downloads()[index.row()]\ | |
| 43 .downloadedSuccessfully(): | |
| 44 return self.__manager.downloads()[index.row()].getInfoData() | |
| 45 | |
| 46 return None | |
| 47 | |
| 48 def rowCount(self, parent=None): | |
| 49 """ | |
| 50 Public method to get the number of rows of the model. | |
| 51 | |
| 52 @param parent parent index (QModelIndex) | |
| 53 @return number of rows (integer) | |
| 54 """ | |
| 55 if parent is None: | |
| 56 parent = QModelIndex() | |
| 57 | |
| 58 if parent.isValid(): | |
| 59 return 0 | |
| 60 else: | |
| 61 return self.__manager.count() | |
| 62 | |
| 63 def removeRows(self, row, count, parent=None): | |
| 64 """ | |
| 65 Public method to remove bookmarks from the model. | |
| 66 | |
| 67 @param row row of the first bookmark to remove (integer) | |
| 68 @param count number of bookmarks to remove (integer) | |
| 69 @param parent index of the parent bookmark node (QModelIndex) | |
| 70 @return flag indicating successful removal (boolean) | |
| 71 """ | |
| 72 if parent is None: | |
| 73 parent = QModelIndex() | |
| 74 | |
| 75 if parent.isValid(): | |
| 76 return False | |
| 77 | |
| 78 if row < 0 or count <= 0 or row + count > self.rowCount(parent): | |
| 79 return False | |
| 80 | |
| 81 lastRow = row + count - 1 | |
| 82 for i in range(lastRow, row - 1, -1): | |
| 83 if not self.__manager.downloads()[i].downloading(): | |
| 84 self.beginRemoveRows(parent, i, i) | |
| 85 del self.__manager.downloads()[i] | |
| 86 self.endRemoveRows() | |
| 87 self.__manager.changeOccurred() | |
| 88 return True | |
| 89 | |
| 90 def flags(self, index): | |
| 91 """ | |
| 92 Public method to get flags for an item. | |
| 93 | |
| 94 @param index index of the node cell (QModelIndex) | |
| 95 @return flags (Qt.ItemFlags) | |
| 96 """ | |
| 97 if index.row() < 0 or index.row() >= self.rowCount(index.parent()): | |
| 98 return Qt.NoItemFlags | |
| 99 | |
| 100 defaultFlags = QAbstractListModel.flags(self, index) | |
| 101 | |
| 102 itm = self.__manager.downloads()[index.row()] | |
| 103 if itm.downloadedSuccessfully(): | |
| 104 return defaultFlags | Qt.ItemIsDragEnabled | |
| 105 | |
| 106 return defaultFlags | |
| 107 | |
| 108 def mimeData(self, indexes): | |
| 109 """ | |
| 110 Public method to return the mime data. | |
| 111 | |
| 112 @param indexes list of indexes (QModelIndexList) | |
| 113 @return mime data (QMimeData) | |
| 114 """ | |
| 115 mimeData = QMimeData() | |
| 116 urls = [] | |
| 117 for index in indexes: | |
| 118 if index.isValid(): | |
| 119 itm = self.__manager.downloads()[index.row()] | |
| 120 urls.append(QUrl.fromLocalFile(itm.absoluteFilePath())) | |
| 121 mimeData.setUrls(urls) | |
| 122 return mimeData |
