1 files changed, 94 insertions, 0 deletions
diff --git a/widget/windows/CompositorWidgetParent.h b/widget/windows/CompositorWidgetParent.h
new file mode 100644
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+++ b/widget/windows/CompositorWidgetParent.h
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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_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;
+
+  bool HasGlass() 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