tasks:support plasma 5.25 window view effect

--support window view effect from plasma 5.25 when
the user tries to activate a grouped task

BUG:454296
FIXED-IN:0.10.9

plasmoid/package/contents/ui/main.qml

@@ -50,6 +50,7 @@ Item {
     property bool plasma518: LatteCore.Environment.plasmaDesktopVersion >= LatteCore.Environment.makeVersion(5,18,0)
     property bool plasma520: LatteCore.Environment.plasmaDesktopVersion >= LatteCore.Environment.makeVersion(5,20,0)
     property bool plasmaGreaterThan522: LatteCore.Environment.plasmaDesktopVersion >= LatteCore.Environment.makeVersion(5,21,75)
+    property bool plasmaAtLeast525: LatteCore.Environment.plasmaDesktopVersion >= LatteCore.Environment.makeVersion(5,24,75)
 
     property bool disableRestoreZoom: false //blocks restore animation in rightClick
     property bool disableAllWindowsFunctionality: plasmoid.configuration.hideAllTasks
@@ -205,6 +206,7 @@ Item {
     signal draggingFinished();
     signal hiddenTasksUpdated();
     signal presentWindows(variant winIds);
+    signal activateWindowView(variant winIds);
     signal requestLayout;
     signal signalPreviewsShown();
     //signal signalDraggingState(bool value);
@@ -1295,14 +1297,24 @@ Item {
     }
 
     Component.onCompleted:  {
-        root.presentWindows.connect(backend.presentWindows);
+        if (root.plasmaAtLeast525) {
+            root.activateWindowView.connect(backend.activateWindowView);
+        } else {
+            root.presentWindows.connect(backend.presentWindows);
+        }
+
         root.windowsHovered.connect(backend.windowsHovered);
         dragHelper.dropped.connect(resetDragSource);
         updateListViewParent();
     }
 
     Component.onDestruction: {
-        root.presentWindows.disconnect(backend.presentWindows);
+        if (root.plasmaAtLeast525) {
+            root.activateWindowView.disconnect(backend.activateWindowView);
+        } else {
+            root.presentWindows.disconnect(backend.presentWindows);
+        }
+
         root.windowsHovered.disconnect(backend.windowsHovered);
         dragHelper.dropped.disconnect(resetDragSource);
     }

plasmoid/package/contents/ui/task/TaskItem.qml

@@ -430,9 +430,18 @@ AbilityItem.BasicItem {
             activateLauncher();
         } else{
             if (model.IsGroupParent) {
-                var canPresentWindowsIsSupported = LatteCore.WindowSystem.compositingActive && (root.plasmaGreaterThan522 ? backend.canPresentWindows : backend.canPresentWindows());
-                if (canPresentWindowsIsSupported) {
-                    root.presentWindows(root.plasma515 ? model.WinIdList: model.LegacyWinIdList );
+                if (root.plasmaAtLeast525) {
+                    //! At least Plasma 5.25 case
+                    var isWindowViewAvailable = LatteCore.WindowSystem.compositingActive && backend.windowViewAvailable;
+                    if (isWindowViewAvailable) {
+                        root.activateWindowView(model.WinIdList);
+                    }
+                } else {
+                    //! Plasma 5.24 case
+                    var isPresentWindowsAvailable = LatteCore.WindowSystem.compositingActive && backend.canPresentWindows;
+                    if (isPresentWindowsAvailable) {
+                        root.presentWindows(model.WinIdList);
+                    }
                 }
             } else {
                 if (windowsPreviewDlg.visible) {