Qt 5.7 | Qt WebEngine | WebEngine Quick Nano Browser | DownloadView.qml Example File

Qt 5.7.1 Reference Documentation

# DownloadView.qml Example File

webengine/quicknanobrowser/DownloadView.qml

      /****************************************************************************
      **
      ** Copyright (C) 2016 The Qt Company Ltd.
      ** Contact: https://www.qt.io/licensing/
      **
      ** This file is part of the QtWebEngine module of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** Commercial License Usage
      ** Licensees holding valid commercial Qt licenses may use this file in
      ** accordance with the commercial license agreement provided with the
      ** Software or, alternatively, in accordance with the terms contained in
      ** a written agreement between you and The Qt Company. For licensing terms
      ** and conditions see https://www.qt.io/terms-conditions. For further
      ** information use the contact form at https://www.qt.io/contact-us.
      **
      ** BSD License Usage
      ** Alternatively, 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 QtQuick 2.1
      import QtQuick.Controls 1.0
      import QtQuick.Controls.Styles 1.0
      import QtWebEngine 1.2
      import QtQuick.Layouts 1.0

      Rectangle {
          id: downloadView
          color: "lightgray"

          ListModel {
              id: downloadModel
              property var downloads: []
          }

          function append(download) {
              downloadModel.append(download)
              downloadModel.downloads.push(download)
          }

          Component {
              id: downloadItemDelegate

              Rectangle {
                  width: listView.width
                  height: childrenRect.height
                  anchors.margins: 10
                  radius: 3
                  color: "transparent"
                  border.color: "black"
                  Rectangle {
                      id: progressBar

                      property real progress: downloadModel.downloads[index]
                                             ? downloadModel.downloads[index].receivedBytes / downloadModel.downloads[index].totalBytes : 0

                      radius: 3
                      color: width == listView.width ? "green" : "#2b74c7"
                      width: listView.width * progress
                      height: cancelButton.height

                      Behavior on width {
                          SmoothedAnimation { duration: 100 }
                      }
                  }
                  Rectangle {
                      anchors {
                          left: parent.left
                          right: parent.right
                          leftMargin: 20
                      }
                      Label {
                          id: label
                          text: path
                          anchors {
                              verticalCenter: cancelButton.verticalCenter
                              left: parent.left
                              right: cancelButton.left
                          }
                      }
                      Button {
                          id: cancelButton
                          anchors.right: parent.right
                          iconSource: "icons/process-stop.png"
                          onClicked: {
                              var download = downloadModel.downloads[index]

                              download.cancel()

                              downloadModel.downloads = downloadModel.downloads.filter(function (el) {
                                  return el.id !== download.id;
                              });
                              downloadModel.remove(index)
                          }
                      }
                  }
              }

          }
          ListView {
              id: listView
              anchors {
                  topMargin: 10
                  top: parent.top
                  bottom: parent.bottom
                  horizontalCenter: parent.horizontalCenter
              }
              width: parent.width - 20
              spacing: 5

              model: downloadModel
              delegate: downloadItemDelegate

              Text {
                  visible: !listView.count
                  horizontalAlignment: Text.AlignHCenter
                  height: 30
                  anchors {
                      top: parent.top
                      left: parent.left
                      right: parent.right
                  }
                  font.pixelSize: 20
                  text: "No active downloads."
              }

              Rectangle {
                  color: "gray"
                  anchors {
                      bottom: parent.bottom
                      left: parent.left
                      right: parent.right
                  }
                  height: 30
                  Button {
                      id: okButton
                      text: "OK"
                      anchors.centerIn: parent
                      onClicked: {
                          downloadView.visible = false
                      }
                  }
              }
          }
      }