qt-everywhere-src-5.14.1/qtvirtualkeyboard/src/virtualkeyboard/content/components/PopupList.qml

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** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
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import QtQuick 2.0
import QtQuick.VirtualKeyboard 2.3

ListView {
    property int maxVisibleItems: 5
    readonly property int preferredVisibleItems: count < maxVisibleItems ? count : maxVisibleItems
    readonly property real contentWidth: contentItem.childrenRect.width
    property alias background: popupListBackground.sourceComponent
    property alias defaultHighlight: defaultHighlight

    clip: true
    visible: enabled && count > 0
    width: contentWidth
    height: currentItem ? currentItem.height * preferredVisibleItems + (spacing * preferredVisibleItems - 1) : 0
    orientation: ListView.Vertical
    snapMode: ListView.SnapToItem
    delegate: keyboard.style.popupListDelegate
    highlight: keyboard.style.popupListHighlight ? keyboard.style.popupListHighlight : defaultHighlight
    highlightMoveDuration: 0
    highlightResizeDuration: 0
    add: keyboard.style.popupListAdd
    remove: keyboard.style.popupListRemove
    keyNavigationWraps: true

    onCurrentItemChanged: if (currentItem) keyboard.soundEffect.register(currentItem.soundEffect)

    Component {
        id: defaultHighlight
        Item {}
    }

    Loader {
        id: popupListBackground
        sourceComponent: keyboard.style.popupListBackground
        anchors.fill: parent
        z: -1
    }
}