Revert "Remove need for polkit, launch any ArchUpdater update through terminal"

This reverts commit 299add4a15.

Modules/Background/Background.qml

@@ -4,27 +4,67 @@ import Quickshell.Wayland
 import qs.Commons
 import qs.Services
 
-Loader {
-  active: !Settings.data.wallpaper.swww.enabled
+Variants {
+  id: backgroundVariants
+  model: Quickshell.screens
 
-  sourceComponent: Variants {
-    model: Quickshell.screens
+  delegate: Loader {
 
-    delegate: PanelWindow {
-      required property ShellScreen modelData
-      property string wallpaperSource: WallpaperService.currentWallpaper !== ""
-                                       && !Settings.data.wallpaper.swww.enabled ? WallpaperService.currentWallpaper : ""
+    required property ShellScreen modelData
 
-      visible: wallpaperSource !== "" && !Settings.data.wallpaper.swww.enabled
+    active: Settings.isLoaded && WallpaperService.getWallpaper(modelData.name)
 
-      // Force update when SWWW setting changes
-      onVisibleChanged: {
-        if (visible) {
+    sourceComponent: PanelWindow {
+      id: root
 
-        } else {
+      // Internal state management
+      property bool firstWallpaper: true
+      property bool transitioning: false
+      property real transitionProgress: 0.0
 
+      // Wipe direction: 0=left, 1=right, 2=up, 3=down
+      property real wipeDirection: 0
+      property real wipeSmoothness: 0.05
+
+      // External state management
+      property string servicedWallpaper: WallpaperService.getWallpaper(modelData.name)
+      onServicedWallpaperChanged: {
+        if (servicedWallpaper && servicedWallpaper !== currentWallpaper.source) {
+
+          // Set wallpaper immediately on startup
+          if (firstWallpaper) {
+            firstWallpaper = false
+            setWallpaperImmediate(servicedWallpaper)
+            return
+          }
+
+          switch (Settings.data.wallpaper.transitionType) {
+            case "none":
+              setWallpaperImmediate(servicedWallpaper)
+              break
+            case "wipe_left":
+              wipeDirection = 0
+              setWallpaperWithTransition(servicedWallpaper)
+              break
+            case "wipe_right":
+              wipeDirection = 1
+              setWallpaperWithTransition(servicedWallpaper)
+              break
+            case "wipe_up":
+              wipeDirection = 2
+              setWallpaperWithTransition(servicedWallpaper)
+              break
+            case "wipe_down":
+              wipeDirection = 3
+              setWallpaperWithTransition(servicedWallpaper)
+              break
+            default:
+              setWallpaperWithTransition(servicedWallpaper)
+              break
+          }
         }
       }
+
       color: Color.transparent
       screen: modelData
       WlrLayershell.layer: WlrLayer.Background
@@ -38,18 +78,106 @@ Loader {
         left: true
       }
 
-      margins {
-        top: 0
-      }
-
       Image {
+        id: currentWallpaper
         anchors.fill: parent
         fillMode: Image.PreserveAspectCrop
-        source: wallpaperSource
-        visible: wallpaperSource !== ""
+        source: ""
         cache: true
         smooth: true
         mipmap: false
+        visible: false
+      }
+
+      Image {
+        id: nextWallpaper
+        anchors.fill: parent
+        fillMode: Image.PreserveAspectCrop
+        source: ""
+        cache: true
+        smooth: true
+        mipmap: false
+        visible: false
+      }
+
+      // Fade transition shader
+      ShaderEffect {
+        id: fadeShader
+        anchors.fill: parent
+        visible: Settings.data.wallpaper.transitionType === 'fade'
+
+        property variant source1: currentWallpaper
+        property variant source2: nextWallpaper
+        property real fade: transitionProgress
+        fragmentShader: Qt.resolvedUrl("../../Shaders/qsb/wp_fade.frag.qsb")
+      }
+
+      // Wipe transition shader
+      ShaderEffect {
+        id: wipeShader
+        anchors.fill: parent
+        visible: Settings.data.wallpaper.transitionType.startsWith('wipe_')
+
+        property variant source1: currentWallpaper
+        property variant source2: nextWallpaper
+        property real progress: transitionProgress
+        property real direction: wipeDirection
+        property real smoothness: wipeSmoothness
+        fragmentShader: Qt.resolvedUrl("../../Shaders/qsb/wp_wipe.frag.qsb")
+      }
+
+      // Animation for the transition progress
+      NumberAnimation {
+        id: transitionAnimation
+        target: root
+        property: "transitionProgress"
+        from: 0.0
+        to: 1.0
+        duration: Settings.data.wallpaper.transitionDuration ?? 1000
+        easing.type: {
+          const transitionType = Settings.data.wallpaper.transitionType ?? 'fade'
+          if (transitionType.startsWith('wipe_')) {
+            return Easing.InOutCubic
+          }
+          return Easing.InOutCubic
+        }
+
+        onFinished: {
+          // Swap images after transition completes
+          currentWallpaper.source = nextWallpaper.source
+          transitionProgress = 0.0
+          transitioning = false
+        }
+      }
+
+      function startTransition() {
+        if (!transitioning && nextWallpaper.source != currentWallpaper.source) {
+          transitioning = true
+          transitionAnimation.start()
+        }
+      }
+
+      function setWallpaperImmediate(source) {
+        currentWallpaper.source = source
+        nextWallpaper.source = source
+        transitionProgress = 0.0
+        transitioning = false
+      }
+
+      function setWallpaperWithTransition(source) {
+        if (source != currentWallpaper.source) {
+
+          if (transitioning) {
+            // We are interrupting a transition
+            currentWallpaper.source = nextWallpaper.source
+            transitionAnimation.stop()
+            transitionProgress = 0
+            transitioning = false
+          }
+
+          nextWallpaper.source = source
+          startTransition()
+        }
       }
     }
   }