/* -*- 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_GtkCompositorWidget_h

#define widget_gtk_GtkCompositorWidget_h

#include "mozilla/widget/CompositorWidget.h"

#include "WindowSurfaceProvider.h"

class nsIWidget;

class nsWindow;

namespace mozilla {

namespace widget {

class PlatformCompositorWidgetDelegate

  : public CompositorWidgetDelegate

{

public:

  virtual void NotifyClientSizeChanged(const LayoutDeviceIntSize& aClientSize) = 0;

  // CompositorWidgetDelegate Overrides

  PlatformCompositorWidgetDelegate* AsPlatformSpecificDelegate() override {

    return this;

  }

};

class GtkCompositorWidgetInitData;

class GtkCompositorWidget

 : public CompositorWidget

 , public PlatformCompositorWidgetDelegate

{

public:

  GtkCompositorWidget(const GtkCompositorWidgetInitData& aInitData,

                      const layers::CompositorOptions& aOptions,

                      nsWindow* aWindow = nullptr);

  ~GtkCompositorWidget();

  // 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;

  LayoutDeviceIntSize GetClientSize() override;

  nsIWidget* RealWidget() override;

  GtkCompositorWidget* AsX11() override { return this; }

  CompositorWidgetDelegate* AsDelegate() override { return this; }

  Display* XDisplay() const { return mXDisplay; }

  Window XWindow() const { return mXWindow; }

  // PlatformCompositorWidgetDelegate Overrides

  void NotifyClientSizeChanged(const LayoutDeviceIntSize& aClientSize) override;

protected:

  nsWindow* mWidget;

private:

  LayoutDeviceIntSize mClientSize;

  Display* mXDisplay;

  Window   mXWindow;

  WindowSurfaceProvider mProvider;

};

} // namespace widget

} // namespace mozilla

#endif // widget_gtk_GtkCompositorWidget_h