rssnews.qml Example File | QtQuick 5.3

- Qt 5.3
- Qt Quick
- Qt Quick Demo - RSS News
- rssnews.qml Example File
- Qt 5.3.2 Reference Documentation

# rssnews.qml Example File

demos/rssnews/rssnews.qml

    /****************************************************************************
    **
    ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
    ** Contact: http://www.qt-project.org/legal
    **
    ** This file is part of the 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 Digia Plc and its Subsidiary(-ies) nor the names
    **     of its contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
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    **
    ** 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
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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()
                }
            }
        }
    }