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/* -*- 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