Qt 5.8 | Qt Quick | Qt Quick Demo - RSS News | rssnews.qml Example File

Qt 5.8.0 Reference Documentation

# rssnews.qml Example File

demos/rssnews/rssnews.qml

      /****************************************************************************
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      ** This file is part of the examples of the Qt Toolkit.
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      import QtQuick 2.2
      import QtQuick.XmlListModel 2.0
      import QtQuick.Window 2.1
      import "./content"

      Rectangle {
          id: window

          width: 800
          height: 480

          property string currentFeed: rssFeeds.get(0).feed
          property bool loading: feedModel.status === XmlListModel.Loading
          property bool isPortrait: Screen.primaryOrientation === Qt.PortraitOrientation

          onLoadingChanged: {
              if (feedModel.status == XmlListModel.Ready)
                  list.positionViewAtBeginning()
          }

          RssFeeds { id: rssFeeds }

          XmlListModel {
              id: feedModel

              source: "http://" + window.currentFeed
              query: "/rss/channel/item[child::media:content]"
              namespaceDeclarations: "declare namespace media = 'http://search.yahoo.com/mrss/';"

              XmlRole { name: "title"; query: "title/string()" }
              // Remove any links from the description
              XmlRole { name: "description"; query: "fn:replace(description/string(), '\&lt;a href=.*\/a\&gt;', '')" }
              XmlRole { name: "image"; query: "media:content/@url/string()" }
              XmlRole { name: "link"; query: "link/string()" }
              XmlRole { name: "pubDate"; query: "pubDate/string()" }
          }

          ListView {
              id: categories
              property int itemWidth: 190

              width: isPortrait ? parent.width : itemWidth
              height: isPortrait ? itemWidth : parent.height
              orientation: isPortrait ? ListView.Horizontal : ListView.Vertical
              anchors.top: parent.top
              model: rssFeeds
              delegate: CategoryDelegate { itemSize: categories.itemWidth }
              spacing: 3
          }

          ScrollBar {
              id: listScrollBar

              orientation: isPortrait ? Qt.Horizontal : Qt.Vertical
              height: isPortrait ? 8 : categories.height;
              width: isPortrait ? categories.width : 8
              scrollArea: categories;
              anchors.right: categories.right
          }

          ListView {
              id: list

              anchors.left: isPortrait ? window.left : categories.right
              anchors.right: closeButton.left
              anchors.top: isPortrait ? categories.bottom : window.top
              anchors.bottom: window.bottom
              anchors.leftMargin: 30
              anchors.rightMargin: 4
              clip: isPortrait
              model: feedModel
              footer: footerText
              delegate: NewsDelegate {}
          }

          ScrollBar {
              scrollArea: list
              width: 8
              anchors.right: window.right
              anchors.top: isPortrait ? categories.bottom : window.top
              anchors.bottom: window.bottom
          }

          Component {
              id: footerText

              Rectangle {
                  width: parent.width
                  height: closeButton.height
                  color: "lightgray"

                  Text {
                      text: "RSS Feed from Yahoo News"
                      anchors.centerIn: parent
                      font.pixelSize: 14
                  }
              }
          }

          Image {
              id: closeButton
              source: "content/images/btn_close.png"
              scale: 0.8
              anchors.top: parent.top
              anchors.right: parent.right
              anchors.margins: 4
              opacity: (isPortrait && categories.moving) ? 0.2 : 1.0
              Behavior on opacity {
                  NumberAnimation { duration: 300; easing.type: Easing.OutSine }
              }

              MouseArea {
                  anchors.fill: parent
                  onClicked: {
                      Qt.quit()
                  }
              }
          }
      }