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Diffstat (limited to 'examples/webenginewidgets/tabbedbrowser/downloadwidget.py')
| -rw-r--r-- | examples/webenginewidgets/tabbedbrowser/downloadwidget.py | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/examples/webenginewidgets/tabbedbrowser/downloadwidget.py b/examples/webenginewidgets/tabbedbrowser/downloadwidget.py new file mode 100644 index 000000000..a49a630de --- /dev/null +++ b/examples/webenginewidgets/tabbedbrowser/downloadwidget.py @@ -0,0 +1,144 @@ +############################################################################# +## +## Copyright (C) 2018 The Qt Company Ltd. +## Contact: http://www.qt.io/licensing/ +## +## This file is part of the PySide examples of the Qt Toolkit. +## +## $QT_BEGIN_LICENSE:BSD$ +## You may use this file under the terms of the BSD license as follows: +## +## "Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions are +## met: +## * Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## * Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in +## the documentation and/or other materials provided with the +## distribution. +## * Neither the name of The Qt Company Ltd nor the names of its +## contributors may be used to endorse or promote products derived +## from this software without specific prior written permission. +## +## +## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +## +## $QT_END_LICENSE$ +## +############################################################################# + +import sys +from PySide2 import QtCore +from PySide2.QtCore import QDir, QFileInfo, QStandardPaths, Qt, QUrl +from PySide2.QtGui import QDesktopServices +from PySide2.QtWidgets import (QAction, QLabel, QMenu, QProgressBar, + QStyleFactory, QWidget) +from PySide2.QtWebEngineWidgets import QWebEngineDownloadItem + +# A QProgressBar with context menu for displaying downloads in a QStatusBar. +class DownloadWidget(QProgressBar): + + finished = QtCore.Signal() + removeRequested = QtCore.Signal() + + def __init__(self, downloadItem): + super(DownloadWidget, self).__init__() + self._downloadItem = downloadItem + downloadItem.finished.connect(self._finished) + downloadItem.downloadProgress.connect(self._downloadProgress) + downloadItem.stateChanged.connect(self._updateToolTip()) + path = downloadItem.path() + self.setMaximumWidth(300) + # Shorten 'PySide2-5.11.0a1-5.11.0-cp36-cp36m-linux_x86_64.whl'... + description = QFileInfo(path).fileName() + descriptionLength = len(description) + if descriptionLength > 30: + description = '{}...{}'.format(description[0:10], description[descriptionLength - 10:]) + self.setFormat('{} %p%'.format(description)) + self.setOrientation(Qt.Horizontal) + self.setMinimum(0) + self.setValue(0) + self.setMaximum(100) + self._updateToolTip() + # Force progress bar text to be shown on macoS by using 'fusion' style + if sys.platform == 'darwin': + self.setStyle(QStyleFactory.create('fusion')) + + @staticmethod + def openFile(file): + QDesktopServices.openUrl(QUrl.fromLocalFile(file)) + + @staticmethod + def openDownloadDirectory(): + path = QStandardPaths.writableLocation(QStandardPaths.DownloadLocation) + DownloadWidget.openFile(path) + + def state(self): + return self._downloadItem.state() + + def _updateToolTip(self): + path = self._downloadItem.path() + toolTip = "{}\n{}".format(self._downloadItem.url().toString(), + QDir.toNativeSeparators(path)) + totalBytes = self._downloadItem.totalBytes() + if totalBytes > 0: + toolTip += "\n{}K".format(totalBytes / 1024) + state = self.state() + if state == QWebEngineDownloadItem.DownloadRequested: + toolTip += "\n(requested)" + elif state == QWebEngineDownloadItem.DownloadInProgress: + toolTip += "\n(downloading)" + elif state == QWebEngineDownloadItem.DownloadCompleted: + toolTip += "\n(completed)" + elif state == QWebEngineDownloadItem.DownloadCancelled: + toolTip += "\n(cancelled)" + else: + toolTip += "\n(interrupted)" + self.setToolTip(toolTip) + + def _downloadProgress(self, bytesReceived, bytesTotal): + self.setValue(int(100 * bytesReceived / bytesTotal)) + + def _finished(self): + self._updateToolTip() + self.finished.emit() + + def _launch(self): + DownloadWidget.openFile(self._downloadItem.path()) + + def mouseDoubleClickEvent(self, event): + if self.state() == QWebEngineDownloadItem.DownloadCompleted: + self._launch() + + def contextMenuEvent(self, event): + state = self.state() + contextMenu = QMenu() + launchAction = contextMenu.addAction("Launch") + launchAction.setEnabled(state == QWebEngineDownloadItem.DownloadCompleted) + showInFolderAction = contextMenu.addAction("Show in Folder") + showInFolderAction.setEnabled(state == QWebEngineDownloadItem.DownloadCompleted) + cancelAction = contextMenu.addAction("Cancel") + cancelAction.setEnabled(state == QWebEngineDownloadItem.DownloadInProgress) + removeAction = contextMenu.addAction("Remove") + removeAction.setEnabled(state != QWebEngineDownloadItem.DownloadInProgress) + + chosenAction = contextMenu.exec_(event.globalPos()) + if chosenAction == launchAction: + self._launch() + elif chosenAction == showInFolderAction: + DownloadWidget.openFile(QFileInfo(self._downloadItem.path()).absolutePath()) + elif chosenAction == cancelAction: + self._downloadItem.cancel() + elif chosenAction == removeAction: + self.removeRequested.emit() |