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** This file is part of the Qt Quick Controls module of the Qt Toolkit.
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import QtQuick 2.6
import QtQuick.Controls 2.0

AbstractScrollIndicator {
    id: control

    implicitWidth: Math.max(background ? background.implicitWidth : 0,
                            indicator.implicitWidth + leftPadding + rightPadding)
    implicitHeight: Math.max(background ? background.implicitHeight : 0,
                             indicator.implicitHeight + topPadding + bottomPadding)

    Accessible.role: Accessible.Indicator

    padding: 2

    indicator: Rectangle {
        id: indicator

        implicitWidth: 2
        implicitHeight: 2

        color: control.Theme.frameColor
        visible: control.size < 1.0
        opacity: 0.0

        readonly property bool horizontal: control.orientation === Qt.Horizontal
        x: control.leftPadding + (horizontal ? control.position * control.width : 0)
        y: control.topPadding + (horizontal ? 0 : control.position * control.height)
        width: horizontal ? control.size * control.availableWidth : implicitWidth
        height: horizontal ? implicitHeight : control.size * control.availableHeight

        states: State {
            name: "active"
            when: control.active
            PropertyChanges { target: indicator; opacity: 1.0 - control.Theme.disabledOpacity }
        }

        transitions: [
            Transition {
                from: "active"
                SequentialAnimation {
                    PauseAnimation { duration: 450 }
                    NumberAnimation { target: indicator; duration: 200; property: "opacity"; to: 0.0 }
                }
            }
        ]
    }
}