minimize to launcher when the switcher is not visible

components/HomeScreenControls.qml

@@ -31,4 +31,5 @@ QtObject {
     property Item homeScreen
     property QtObject homeScreenWindow
     property bool homeScreenVisible: true
+    property bool taskSwitcherVisible: false
 }

containments/homescreen/applicationlistmodel.cpp

@@ -25,6 +25,8 @@
 #include <QModelIndex>
 #include <QProcess>
 #include <QDebug>
+#include <QQuickItem>
+#include <QQuickWindow>
 
 // KDE
 #include <KIO/ApplicationLauncherJob>
@@ -38,6 +40,7 @@
 #include <KWayland/Client/connection_thread.h>
 #include <KWayland/Client/plasmawindowmanagement.h>
 #include <KWayland/Client/registry.h>
+#include <KWayland/Client/surface.h>
 
 constexpr int MAX_FAVOURITES = 5;
 
@@ -444,5 +447,38 @@ void ApplicationListModel::setMaxFavoriteCount(int count)
     emit maxFavoriteCountChanged();
 }
 
+void ApplicationListModel::setMinimizedDelegate(int row, QQuickItem *delegate)
+{
+    if (row < 0 || row >= m_applicationList.count()) {
+        return;
+    }
+
+    if (!delegate || !delegate->parentItem() || !delegate->window()) {
+        return;
+    }
+
+    QWindow *delegateWindow = delegate->window();
+
+    if (!delegateWindow) {
+        return;
+    }
+
+    using namespace KWayland::Client;
+    KWayland::Client::PlasmaWindow *window = m_applicationList[row].window;
+    if (!window) {
+        return;
+    }
+
+    Surface *surface = Surface::fromWindow(delegateWindow);
+
+    if (!surface) {
+        return;
+    }
+
+    QRect rect = delegate->mapRectToScene(QRectF(0,0, delegate->width(), delegate->height())).toRect();
+
+    window->setMinimizedGeometry(surface, rect);
+}
+
 #include "moc_applicationlistmodel.cpp"
 

containments/homescreen/applicationlistmodel.h

@@ -106,6 +106,8 @@ public:
 
     Q_INVOKABLE void loadApplications();
 
+    Q_INVOKABLE void setMinimizedDelegate(int row, QQuickItem *delegate);
+
 public Q_SLOTS:
      void sycocaDbChanged(const QStringList &change);
 

containments/homescreen/package/contents/ui/launcher/Delegate.qml

@@ -27,7 +27,7 @@ import org.kde.plasma.components 2.0 as PlasmaComponents
 import org.kde.kquickcontrolsaddons 2.0
 
 import org.kde.plasma.private.containmentlayoutmanager 1.0 as ContainmentLayoutManager 
-
+import org.kde.plasma.private.mobileshell 1.0 as MobileShell
 import org.kde.phone.homescreen 1.0
 
 ContainmentLayoutManager.ItemContainer {
@@ -51,9 +51,30 @@ ContainmentLayoutManager.ItemContainer {
 
     signal launch(int x, int y, var source, string title)
 
+    readonly property bool applicationRunning: model.applicationRunning
+    onApplicationRunningChanged: {
+        if (applicationRunning && !MobileShell.HomeScreenControls.taskSwitcherVisible) {
+            plasmoid.nativeInterface.applicationListModel.setMinimizedDelegate(index, delegate);
+        }
+    }
     Connections {
         target: mainFlickable
-        onCancelEditModeForItemsRequested: cancelEdit()
+        function onCancelEditModeForItemsRequested() {
+            cancelEdit()
+        }
+        function onContentYChanged() {
+            if (applicationRunning && !MobileShell.HomeScreenControls.taskSwitcherVisible) {
+                plasmoid.nativeInterface.applicationListModel.setMinimizedDelegate(index, delegate);
+            }
+        }
+    }
+    Connections {
+        target: MobileShell.HomeScreenControls
+        function taskSwitcherVisibleChanged() {
+            if (applicationRunning && !MobileShell.HomeScreenControls.taskSwitcherVisible) {
+                plasmoid.nativeInterface.applicationListModel.setMinimizedDelegate(index, delegate);
+            }
+        }
     }
     onDragActiveChanged: {
         launcherDragManager.active = dragActive

containments/taskpanel/package/contents/ui/Task.qml

@@ -43,7 +43,7 @@ Item {
         if (window.visible) {
             tasksModel.requestPublishDelegateGeometry(tasksModel.index(model.index, 0), Qt.rect(pos.x, pos.y, delegate.width, delegate.height), delegate);
         } else {
-            tasksModel.requestPublishDelegateGeometry(tasksModel.index(model.index, 0), Qt.rect(pos.x, pos.y, delegate.width, delegate.height), dummyWindowTask);
+          //  tasksModel.requestPublishDelegateGeometry(tasksModel.index(model.index, 0), Qt.rect(pos.x, pos.y, delegate.width, delegate.height), dummyWindowTask);
         }
     }
     Connections {
@@ -58,6 +58,7 @@ Item {
             syncDelegateGeometry();
         }
     }
+
     Component.onCompleted: syncDelegateGeometry();
 
     Item {

containments/taskpanel/package/contents/ui/TaskSwitcher.qml

@@ -24,6 +24,7 @@ import org.kde.taskmanager 0.1 as TaskManager
 import org.kde.plasma.core 2.1 as PlasmaCore
 import org.kde.plasma.components 3.0 as PlasmaComponents
 import org.kde.plasma.private.nanoshell 2.0 as NanoShell
+import org.kde.plasma.private.mobileshell 1.0 as MobileShell
 
 NanoShell.FullScreenOverlay {
     id: window
@@ -96,6 +97,7 @@ NanoShell.FullScreenOverlay {
         if (!visible) {
             tasksView.contentY = 0;
         }
+        MobileShell.HomeScreenControls.taskSwitcherVisible = visible;
     }
 
     SequentialAnimation {