Introduce geometry sync mode flags

The sync mode flags indicate in which fashion position and size update
are made, i.e. synchronous or asynchronous.

inputpanelv1client.cpp

@@ -30,6 +30,8 @@ InputPanelV1Client::InputPanelV1Client(InputPanelSurfaceV1Interface *panelSurfac
     setSkipSwitcher(true);
     setSkipPager(true);
     setSkipTaskbar(true);
+    setPositionSyncMode(SyncMode::Sync);
+    setSizeSyncMode(SyncMode::Sync);
     setupCompositing();
 
     connect(surface(), &SurfaceInterface::aboutToBeDestroyed, this, &InputPanelV1Client::destroyClient);

waylandclient.cpp

@@ -423,7 +423,17 @@ void WaylandClient::setFrameGeometry(const QRect &rect, ForceGeometry_t force)
         requestGeometry(requestedFrameGeometry());
     } else {
         updateGeometry(requestedFrameGeometry());
+        return;
     }
+
+    QRect updateRect = m_frameGeometry;
+    if (m_positionSyncMode == SyncMode::Sync) {
+        updateRect.moveTopLeft(requestedPos());
+    }
+    if (m_sizeSyncMode == SyncMode::Sync) {
+        updateRect.setSize(requestedSize());
+    }
+    updateGeometry(updateRect);
 }
 
 void WaylandClient::move(int x, int y, ForceGeometry_t force)
@@ -514,4 +524,14 @@ void WaylandClient::updateGeometry(const QRect &rect)
     addRepaintDuringGeometryUpdates();
 }
 
+void WaylandClient::setPositionSyncMode(SyncMode syncMode)
+{
+    m_positionSyncMode = syncMode;
+}
+
+void WaylandClient::setSizeSyncMode(SyncMode syncMode)
+{
+    m_sizeSyncMode = syncMode;
+}
+
 } // namespace KWin

waylandclient.h

@@ -11,6 +11,11 @@
 namespace KWin
 {
 
+enum class SyncMode {
+    Sync,
+    Async,
+};
+
 class WaylandClient : public AbstractClient
 {
     Q_OBJECT
@@ -61,6 +66,8 @@ protected:
     void doSetActive() override;
     void updateCaption() override;
 
+    void setPositionSyncMode(SyncMode syncMode);
+    void setSizeSyncMode(SyncMode syncMode);
     void cleanGrouping();
 
     virtual void requestGeometry(const QRect &rect);
@@ -80,6 +87,8 @@ private:
     QRect m_requestedFrameGeometry;
     QRect m_bufferGeometry;
     QRect m_requestedClientGeometry;
+    SyncMode m_positionSyncMode = SyncMode::Sync;
+    SyncMode m_sizeSyncMode = SyncMode::Sync;
     quint32 m_windowId;
     bool m_isHidden = false;
 };

xdgshellclient.cpp

@@ -43,6 +43,8 @@ XdgSurfaceClient::XdgSurfaceClient(XdgSurfaceInterface *shellSurface)
     , m_shellSurface(shellSurface)
     , m_configureTimer(new QTimer(this))
 {
+    setSizeSyncMode(SyncMode::Async);
+    setPositionSyncMode(SyncMode::Async);
     setupCompositing();
 
     connect(shellSurface, &XdgSurfaceInterface::configureAcknowledged,