1 files changed, 62 insertions, 0 deletions
diff --git a/widget/windows/CompositorWidgetChild.h b/widget/windows/CompositorWidgetChild.h
new file mode 100644
index 0000000000..bec8ead98e
--- /dev/null
+++ b/widget/windows/CompositorWidgetChild.h
@@ -0,0 +1,62 @@
+/* -*- 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_CompositorWidgetChild_h
+#define widget_windows_CompositorWidgetChild_h
+
+#include "WinCompositorWidget.h"
+#include "mozilla/widget/PCompositorWidgetChild.h"
+#include "mozilla/widget/CompositorWidgetVsyncObserver.h"
+
+namespace mozilla {
+class CompositorVsyncDispatcher;
+
+namespace widget {
+
+namespace remote_backbuffer {
+class Provider;
+}
+
+class CompositorWidgetChild final : public PCompositorWidgetChild,
+                                    public PlatformCompositorWidgetDelegate {
+ public:
+  CompositorWidgetChild(RefPtr<CompositorVsyncDispatcher> aVsyncDispatcher,
+                        RefPtr<CompositorWidgetVsyncObserver> aVsyncObserver,
+                        const CompositorWidgetInitData& aInitData);
+  ~CompositorWidgetChild() override;
+
+  bool Initialize();
+
+  void EnterPresentLock() override;
+  void LeavePresentLock() override;
+  void OnDestroyWindow() override;
+  bool OnWindowResize(const LayoutDeviceIntSize& aSize) override;
+  void OnWindowModeChange(nsSizeMode aSizeMode) override;
+  void UpdateTransparency(TransparencyMode aMode) override;
+  void NotifyVisibilityUpdated(nsSizeMode aSizeMode,
+                               bool aIsFullyOccluded) override;
+  void ClearTransparentWindow() override;
+
+  mozilla::ipc::IPCResult RecvObserveVsync() override;
+  mozilla::ipc::IPCResult RecvUnobserveVsync() override;
+  mozilla::ipc::IPCResult RecvUpdateCompositorWnd(
+      const WindowsHandle& aCompositorWnd, const WindowsHandle& aParentWnd,
+      UpdateCompositorWndResolver&& aResolve) override;
+
+ private:
+  RefPtr<CompositorVsyncDispatcher> mVsyncDispatcher;
+  RefPtr<CompositorWidgetVsyncObserver> mVsyncObserver;
+  HWND mCompositorWnd;
+
+  HWND mWnd;
+  TransparencyMode mTransparencyMode;
+
+  std::unique_ptr<remote_backbuffer::Provider> mRemoteBackbufferProvider;
+};
+
+}  // namespace widget
+}  // namespace mozilla
+
+#endif  // widget_windows_CompositorWidgetChild_h