CompositorWidgetParent.h

Enable keyboard shortcuts

/* -*- 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_windows_CompositorWidgetParent_h

#define widget_windows_CompositorWidgetParent_h

#include "WinCompositorWidget.h"

#include "mozilla/Maybe.h"

#include "mozilla/widget/PCompositorWidgetParent.h"

namespace mozilla {

namespace widget {

enum class TransparencyMode : uint8_t;

namespace remote_backbuffer {

class Client;

class CompositorWidgetParent final : public PCompositorWidgetParent,

                                     public WinCompositorWidget {

 public:

  explicit CompositorWidgetParent(const CompositorWidgetInitData& aInitData,

                                  const layers::CompositorOptions& aOptions);

  ~CompositorWidgetParent() override;

  bool Initialize(const RemoteBackbufferHandles& aRemoteHandles);

  bool PreRender(WidgetRenderingContext*) override;

  void PostRender(WidgetRenderingContext*) override;

  already_AddRefed<gfx::DrawTarget> StartRemoteDrawingInRegion(

      const LayoutDeviceIntRegion& aInvalidRegion,

      layers::BufferMode* aBufferMode) override;

  void EndRemoteDrawingInRegion(

      gfx::DrawTarget* aDrawTarget,

      const LayoutDeviceIntRegion& aInvalidRegion) override;

  bool NeedsToDeferEndRemoteDrawing() override;

  LayoutDeviceIntSize GetClientSize() override;

  already_AddRefed<gfx::DrawTarget> GetBackBufferDrawTarget(

      gfx::DrawTarget* aScreenTarget, const gfx::IntRect& aRect,

      bool* aOutIsCleared) override;

  already_AddRefed<gfx::SourceSurface> EndBackBufferDrawing() override;

  bool InitCompositor(layers::Compositor* aCompositor) override;

  bool IsHidden() const override;

  nsSizeMode GetWindowSizeMode() const override;

  bool GetWindowIsFullyOccluded() const override;

  mozilla::ipc::IPCResult RecvInitialize(

      const RemoteBackbufferHandles& aRemoteHandles) override;

  mozilla::ipc::IPCResult RecvEnterPresentLock() override;

  mozilla::ipc::IPCResult RecvLeavePresentLock() override;

  mozilla::ipc::IPCResult RecvUpdateTransparency(

      const TransparencyMode& aMode) override;

  mozilla::ipc::IPCResult RecvNotifyVisibilityUpdated(

      const nsSizeMode& aSizeMode, const bool& aIsFullyOccluded) override;

  mozilla::ipc::IPCResult RecvClearTransparentWindow() override;

  void ActorDestroy(ActorDestroyReason aWhy) override;

  nsIWidget* RealWidget() override;

  void ObserveVsync(VsyncObserver* aObserver) override;

  RefPtr<VsyncObserver> GetVsyncObserver() const override;

  // PlatformCompositorWidgetDelegate Overrides

  void UpdateCompositorWnd(const HWND aCompositorWnd,

                           const HWND aParentWnd) override;

  void SetRootLayerTreeID(const layers::LayersId& aRootLayerTreeId) override;

 private:

  RefPtr<VsyncObserver> mVsyncObserver;

  Maybe<layers::LayersId> mRootLayerTreeID;

  HWND mWnd;

  gfx::CriticalSection mPresentLock;

  // Transparency handling.

  mozilla::Atomic<uint32_t, MemoryOrdering::Relaxed> mTransparencyMode;

  // Visibility handling.

  mozilla::Atomic<nsSizeMode, MemoryOrdering::Relaxed> mSizeMode;

  mozilla::Atomic<bool, MemoryOrdering::Relaxed> mIsFullyOccluded;

  std::unique_ptr<remote_backbuffer::Client> mRemoteBackbufferClient;

};

}  // namespace widget

}  // namespace mozilla

#endif  // widget_windows_CompositorWidgetParent_h