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Minimal test - lines (20, 20)

Code

class nsWindow;

Minimal test - lines (22, 97)

Code

namespace mozilla {
namespace widget {

class PlatformCompositorWidgetDelegate : public CompositorWidgetDelegate {
 public:
  // Callbacks for nsWindow.
  virtual void EnterPresentLock() = 0;
  virtual void LeavePresentLock() = 0;
  virtual void OnDestroyWindow() = 0;
  virtual bool OnWindowResize(const LayoutDeviceIntSize& aSize) = 0;
  virtual void OnWindowModeChange(nsSizeMode aSizeMode) = 0;

  // Transparency handling.
  virtual void UpdateTransparency(nsTransparencyMode aMode) = 0;
  virtual void ClearTransparentWindow() = 0;

  // CompositorWidgetDelegate Overrides

  PlatformCompositorWidgetDelegate* AsPlatformSpecificDelegate() override {
    return this;
  }
};

class WinCompositorWidgetInitData;

// This is the Windows-specific implementation of CompositorWidget. For
// the most part it only requires an HWND, however it maintains extra state
// for transparent windows, as well as for synchronizing WM_SETTEXT messages
// with the compositor.
class WinCompositorWidget : public CompositorWidget {
 public:
  WinCompositorWidget(const WinCompositorWidgetInitData& aInitData,
                      const layers::CompositorOptions& aOptions);
  ~WinCompositorWidget() override;

  // CompositorWidget Overrides

  uintptr_t GetWidgetKey() override;
  WinCompositorWidget* AsWindows() override { return this; }

  HWND GetHwnd() const {
    return mCompositorWnds.mCompositorWnd ? mCompositorWnds.mCompositorWnd
                                          : mWnd;
  }

  HWND GetCompositorHwnd() const { return mCompositorWnds.mCompositorWnd; }

  void EnsureCompositorWindow();
  void DestroyCompositorWindow();
  void UpdateCompositorWndSizeIfNecessary();

  void RequestFxrOutput();
  bool HasFxrOutputHandler() const { return mFxrHandler != nullptr; }
  FxROutputHandler* GetFxrOutputHandler() const { return mFxrHandler.get(); }

  virtual bool HasGlass() const = 0;

  virtual void UpdateCompositorWnd(const HWND aCompositorWnd,
                                   const HWND aParentWnd) = 0;
  virtual void SetRootLayerTreeID(const layers::LayersId& aRootLayerTreeId) = 0;

 protected:
  bool mSetParentCompleted;

 private:
  uintptr_t mWidgetKey;
  HWND mWnd;

  WinCompositorWnds mCompositorWnds;
  LayoutDeviceIntSize mLastCompositorWndSize;

  UniquePtr mFxrHandler;
};

}  // namespace widget
}  // namespace mozilla