taskswitcher: add support for task reordering based on opening history

components/mobileshell/qml/homescreen/HomeScreen.qml

@@ -171,7 +171,7 @@ Item {
             groupMode: TaskManager.TasksModel.GroupDisabled
 
             screenGeometry: plasmoid.screenGeometry
-            sortMode: TaskManager.TasksModel.SortAlpha
+            sortMode: TaskManager.TasksModel.SortLastActivated
 
             virtualDesktop: virtualDesktopInfo.currentDesktop
             activity: activityInfo.currentActivity

components/mobileshell/qml/taskswitcher/TaskSwitcher.qml

@@ -25,7 +25,7 @@ Item {
     id: root
     visible: false
     opacity: 0
-    
+
     // state object
     property var taskSwitcherState: TaskSwitcherState {
         taskSwitcher: root
@@ -82,10 +82,15 @@ Item {
         taskSwitcherState.xPosition = 0;
         taskSwitcherState.wasInActiveTask = tasksModel.activeTask.row >= 0;
         taskSwitcherState.currentlyBeingOpened = true;
-        
+
+        // disable reorder feature and the relative delay
+        taskSwitcher.tasksModel.requestLastActivatedReorderDelay(0);
+
         // skip to first active task
         if (taskSwitcherState.wasInActiveTask) {
             taskSwitcherState.goToTaskIndex(tasksModel.activeTask.row);
+        } else {
+            taskSwitcherState.goToTaskIndex(tasksCount - 1);
         }
         
         // show task switcher, hide all running apps

components/mobileshell/qml/taskswitcher/TaskSwitcherState.qml

@@ -157,12 +157,12 @@ QtObject {
     // called after a user finishes an interaction (ex. lets go of the screen)
     function updateState() {
         cancelAnimations();
-        
+
         // update vertical state
-        if (movingUp || root.yPosition >= openedYPosition) { 
+        if (movingUp || root.yPosition >= openedYPosition) {
             // open task switcher and stay
             openAnim.restart();
-        } else { 
+        } else {
             // close task switcher and return to app
             closeAnim.restart();
         }
@@ -221,6 +221,7 @@ QtObject {
             taskSwitcher.instantHide();
             
             if (root.wasInActiveTask) {
+                taskSwitcher.tasksModel.requestLastActivatedReorderDelay(5000);
                 taskSwitcher.setSingleActiveWindow(root.currentTaskIndex);
             }
         }

components/mobileshell/qml/taskswitcher/Thumbnail.qml

@@ -15,7 +15,7 @@ TaskManager.PipeWireSourceItem {
     nodeId: waylandItem.nodeId
 
     onVisibleChanged: {
-        if (visible && waylandItem.uuid.length === 0) {
+        if (visible) {
             if (model.WinIdList) {
                 waylandItem.uuid = model.WinIdList[0];
             }