nixos/other/quickshell/bar/TooltipItem.qml

import QtQuick
import Quickshell

Item {
    id: root
    required property var tooltip
    required property Item owner
    property bool isMenu: false
    property list<QtObject> grabWindows
    property bool hoverable: isMenu
    property bool animateSize: true
    property bool show: false
    property bool preloadBackground: root.visible

    property real targetRelativeX: owner.width / 2
    property real hangTime: isMenu ? 0 : 200

    signal close

    readonly property alias contentItem: contentItem
    default property alias data: contentItem.data

    property Component backgroundComponent: null

    onShowChanged: {
        if (show)
            tooltip.setItem(this);
        else
            tooltip.removeItem(this);
    }

    property bool targetVisible: false
    property real targetOpacity: 0
    opacity: root.targetOpacity * (tooltip.scaleMul == 0 ? 0 : (1.0 / tooltip.scaleMul))

    Behavior on targetOpacity {
        id: opacityAnimation
        SmoothedAnimation {
            velocity: 5
        }
    }

    function snapOpacity(opacity: real) {
        opacityAnimation.enabled = false;
        targetOpacity = opacity;
        opacityAnimation.enabled = true;
    }

    onTargetVisibleChanged: {
        if (targetVisible) {
            visible = true;
            targetOpacity = 1;
        } else {
            close();
            targetOpacity = 0;
        }
    }

    onTargetOpacityChanged: {
        if (!targetVisible && targetOpacity == 0) {
            visible = false;
            this.parent = null;
            if (tooltip)
                tooltip.onHidden(this);
        }
    }

    anchors.fill: parent
    visible: false
    //clip: true
    implicitHeight: contentItem.implicitHeight + contentItem.anchors.leftMargin + contentItem.anchors.rightMargin
    implicitWidth: contentItem.implicitWidth + contentItem.anchors.leftMargin + contentItem.anchors.rightMargin

    readonly property Item item: contentItem

    Loader {
        anchors.fill: parent
        active: root.backgroundComponent && (root.visible || root.preloadBackground)
        asynchronous: !root.visible && root.preloadBackground
        sourceComponent: backgroundComponent
    }

    Item {
        id: contentItem
        anchors.fill: parent
        anchors.margins: 5

        implicitHeight: children[0].implicitHeight
        implicitWidth: children[0].implicitWidth
    }
}