1 files changed, 13 insertions, 1 deletions
diff --git a/src/plugins/platforms/wasm/qwasmscreen.h b/src/plugins/platforms/wasm/qwasmscreen.h
index 633cf853f7..47ce11495f 100644
--- a/src/plugins/platforms/wasm/qwasmscreen.h
+++ b/src/plugins/platforms/wasm/qwasmscreen.h
@@ -6,6 +6,8 @@
 
 #include "qwasmcursor.h"
 
+#include "qwasmwindowtreenode.h"
+
 #include <qpa/qplatformscreen.h>
 
 #include <QtCore/qscopedpointer.h>
@@ -23,7 +25,7 @@ class QWasmCompositor;
 class QWasmDeadKeySupport;
 class QOpenGLContext;
 
-class QWasmScreen : public QObject, public QPlatformScreen
+class QWasmScreen : public QObject, public QPlatformScreen, public QWasmWindowTreeNode
 {
     Q_OBJECT
 public:
@@ -41,6 +43,8 @@ public:
     QWasmCompositor *compositor();
     QWasmDeadKeySupport *deadKeySupport() { return m_deadKeySupport.get(); }
 
+    QList<QWasmWindow *> allWindows();
+
     QRect geometry() const override;
     int depth() const override;
     QImage::Format format() const override;
@@ -53,6 +57,10 @@ public:
     QWindow *topWindow() const;
     QWindow *topLevelAt(const QPoint &p) const override;
 
+    // QWasmWindowTreeNode:
+    emscripten::val containerElement() final;
+    QWasmWindowTreeNode *parentNode() final;
+
     QPointF mapFromLocal(const QPointF &p) const;
     QPointF clipPoint(const QPointF &p) const;
 
@@ -65,6 +73,10 @@ public slots:
     void setGeometry(const QRect &rect);
 
 private:
+    // QWasmWindowTreeNode:
+    void onSubtreeChanged(QWasmWindowTreeNodeChangeType changeType, QWasmWindowTreeNode *parent,
+                          QWasmWindow *child) final;
+
     emscripten::val m_container;
     emscripten::val m_shadowContainer;
     std::unique_ptr<QWasmCompositor> m_compositor;