1 files changed, 11 insertions, 8 deletions
diff --git a/src/plugins/platforms/wasm/qwasmcompositor.h b/src/plugins/platforms/wasm/qwasmcompositor.h
index b579059344e..1a51016c038 100644
--- a/src/plugins/platforms/wasm/qwasmcompositor.h
+++ b/src/plugins/platforms/wasm/qwasmcompositor.h
@@ -110,25 +110,24 @@ public:
     void lower(QWasmWindow *window);
     void setParent(QWasmWindow *window, QWasmWindow *parent);
 
-    void flush(QWasmWindow *surface, const QRegion &region);
-
     int windowCount() const;
 
-    void redrawWindowContent();
-    void requestRedraw();
-
     QWindow *windowAt(QPoint globalPoint, int padding = 0) const;
     QWindow *keyWindow() const;
 
-    bool event(QEvent *event);
-
     static QWasmTitleBarOptions makeTitleBarOptions(const QWasmWindow *window);
     static QRect titlebarRect(QWasmTitleBarOptions tb, QWasmCompositor::SubControls subcontrol);
 
     QWasmScreen *screen();
     QOpenGLContext *context();
 
-private slots:
+    enum UpdateRequestDeliveryType { ExposeEventDelivery, UpdateRequestDelivery };
+    void requestUpdateAllWindows();
+    void requestUpdateWindow(QWasmWindow *window, UpdateRequestDeliveryType updateType = ExposeEventDelivery);
+    void requestUpdate();
+    void deliverUpdateRequests();
+    void deliverUpdateRequest(QWasmWindow *window, UpdateRequestDeliveryType updateType);
+    void handleBackingStoreFlush();
     void frame();
 
 private:
@@ -152,6 +151,10 @@ private:
     bool m_isEnabled;
     QSize m_targetSize;
     qreal m_targetDevicePixelRatio;
+    QMap<QWasmWindow *, UpdateRequestDeliveryType> m_requestUpdateWindows;
+    bool m_requestUpdateAllWindows = false;
+    int m_requestAnimationFrameId = -1;
+    bool m_inDeliverUpdateRequest = false;
 
     static QPalette makeWindowPalette();