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path: root/modules/background/Wallpaper.qml
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pragma ComponentBehavior: Bound

import "root:/widgets"
import "root:/services"
import "root:/config"
import QtQuick

Item {
    id: root

    property url source: Wallpapers.current ? `file://${Wallpapers.current}` : ""
    property Image current: one

    anchors.fill: parent

    onSourceChanged: {
        if (current === one)
            two.update();
        else
            one.update();
    }

    Img {
        id: one
    }

    Img {
        id: two
    }

    component Img: CachingImage {
        id: img

        function update(): void {
            const srcPath = `${root.source}`.slice(7);
            if (thumbnail.originalPath === srcPath) {
                root.current = this;
            } else
                path = srcPath;
        }

        anchors.fill: parent

        loadOriginal: true
        asynchronous: true
        cache: false
        fillMode: Image.PreserveAspectCrop

        opacity: 0
        scale: Wallpapers.showPreview ? 1 : 0.8

        onStatusChanged: {
            if (status === Image.Ready)
                root.current = this;
        }

        states: State {
            name: "visible"
            when: root.current === img

            PropertyChanges {
                img.opacity: 1
                img.scale: 1
            }
        }

        transitions: Transition {
            from: "*"
            to: "*"

            NumberAnimation {
                target: img
                properties: "opacity,scale"
                duration: Appearance.anim.durations.normal
                easing.type: Easing.BezierSpline
                easing.bezierCurve: Appearance.anim.curves.standard
            }
        }
    }
}