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import Qt 4.7

Rectangle {
    width: 600; height: 600

    gradient: Gradient {
        GradientStop { position: 0; color: "black" }
        GradientStop { position: 1.0; color: "#AAAAAA" }
    }

    XmlListModel {
        id: feedModel
        source: "http://rss.news.yahoo.com/rss/oceania"
        query: "/rss/channel/item"
        XmlRole { name: "title"; query: "title/string()" }
        XmlRole { name: "link"; query: "link/string()" }
        XmlRole { name: "description"; query: "description/string()" }
    }

    Component {
        id: feedDelegate

        Item {
            id: delegate
            height: wrapper.height + 10

            MouseArea {
                anchors.fill: wrapper
                onPressed: delegate.ListView.view.currentIndex = index;
                onClicked: if (wrapper.state == 'Details') wrapper.state = ''; else wrapper.state = 'Details';
            }

            Rectangle {
                id: wrapper

                width: 580; y: 5; height: titleText.height + 10
                color: "#F0F0F0"
                radius: 5
                
                Text {
                    id: titleText
                    x: 10; y: 5
                    text: '<a href=\'' + link + '\'>' + title + '</a>'
                    font { bold: true; family: "Helvetica"; pointSize: 14 }

                    onLinkActivated: { console.log('link clicked: ' + link) }
                }

                Text {
                    id: descriptionText
                    x: 10; width: 560
                    anchors.top: titleText.bottom; anchors.topMargin: 5
                    text: description
                    wrapMode: Text.WordWrap
                    font.family: "Helvetica"
                    opacity: 0
                }

                states: State {
                    name: "Details"
                    PropertyChanges { target: wrapper; height: childrenRect.height + 10 }
                    PropertyChanges { target: descriptionText; opacity: 1 }
                }

                transitions: Transition {
                    from: "*"; to: "Details"; reversible: true
                    SequentialAnimation {
                        NumberAnimation { duration: 200; properties: "height"; easing.type: "OutQuad" }
                        NumberAnimation { duration: 200; properties: "opacity" }
                    }
                }
            }
        }
    }

    ListView {
        id: list
        x: 10; y: 10
        width: parent.width - 20; height: parent.height - 20
        model: feedModel
        delegate: feedDelegate
    }
}