1 files changed, 69 insertions, 0 deletions
diff --git a/widget/gtk/X11CompositorWidget.h b/widget/gtk/X11CompositorWidget.h
new file mode 100644
index 000000000..c0e0edeb3
--- /dev/null
+++ b/widget/gtk/X11CompositorWidget.h
@@ -0,0 +1,69 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef widget_gtk_X11CompositorWidget_h
+#define widget_gtk_X11CompositorWidget_h
+
+#include "mozilla/widget/CompositorWidget.h"
+#include "WindowSurfaceProvider.h"
+
+class nsIWidget;
+class nsWindow;
+
+namespace mozilla {
+namespace widget {
+
+class CompositorWidgetDelegate
+{
+public:
+  virtual void NotifyClientSizeChanged(const LayoutDeviceIntSize& aClientSize) = 0;
+};
+
+class X11CompositorWidget
+ : public CompositorWidget
+ , public CompositorWidgetDelegate
+{
+public:
+  X11CompositorWidget(const CompositorWidgetInitData& aInitData,
+                      nsWindow* aWindow = nullptr);
+  ~X11CompositorWidget();
+
+  // CompositorWidget Overrides
+
+  already_AddRefed<gfx::DrawTarget> StartRemoteDrawing() override;
+  void EndRemoteDrawing() override;
+
+  already_AddRefed<gfx::DrawTarget>
+  StartRemoteDrawingInRegion(LayoutDeviceIntRegion& aInvalidRegion,
+                             layers::BufferMode* aBufferMode) override;
+  void EndRemoteDrawingInRegion(gfx::DrawTarget* aDrawTarget,
+                                LayoutDeviceIntRegion& aInvalidRegion) override;
+  uintptr_t GetWidgetKey() override;
+
+  void NotifyClientSizeChanged(const LayoutDeviceIntSize& aClientSize) override;
+  LayoutDeviceIntSize GetClientSize() override;
+
+  nsIWidget* RealWidget() override;
+  X11CompositorWidget* AsX11() override { return this; }
+  CompositorWidgetDelegate* AsDelegate() override { return this; }
+
+  Display* XDisplay() const { return mXDisplay; }
+  Window XWindow() const { return mXWindow; }
+
+protected:
+  nsWindow* mWidget;
+
+private:
+  LayoutDeviceIntSize mClientSize;
+
+  Display* mXDisplay;
+  Window   mXWindow;
+  WindowSurfaceProvider mProvider;
+};
+
+} // namespace widget
+} // namespace mozilla
+
+#endif // widget_gtk_X11CompositorWidget_h