RemoteContentController.h

Enable keyboard shortcuts

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 mozilla_layers_RemoteContentController_h

#define mozilla_layers_RemoteContentController_h

#include "mozilla/layers/GeckoContentController.h"

#include "mozilla/layers/PAPZParent.h"

namespace mozilla {

namespace dom {

class BrowserParent;

namespace layers {

struct DoubleTapToZoomMetrics;

/**

 * RemoteContentController implements PAPZChild and is used to access a

 * GeckoContentController that lives in a different process.

 * RemoteContentController lives on the compositor thread. All methods can

 * be called off the compositor thread and will get dispatched to the right

 * thread, with the exception of RequestContentRepaint and NotifyFlushComplete,

 * which must be called on the repaint thread, which in this case is the

 * compositor thread.

*/

class RemoteContentController : public GeckoContentController,

                                public PAPZParent {

  using GeckoContentController::APZStateChange;

  using GeckoContentController::TapType;

 public:

  RemoteContentController();

  virtual ~RemoteContentController();

  void NotifyLayerTransforms(nsTArray<MatrixMessage>&& aTransforms) override;

  void RequestContentRepaint(const RepaintRequest& aRequest) override;

  void HandleTap(

      TapType aTapType, const LayoutDevicePoint& aPoint, Modifiers aModifiers,

      const ScrollableLayerGuid& aGuid, uint64_t aInputBlockId,

      const Maybe<DoubleTapToZoomMetrics>& aDoubleTapToZoomMetrics) override;

  void NotifyPinchGesture(PinchGestureInput::PinchGestureType aType,

                          const ScrollableLayerGuid& aGuid,

                          const LayoutDevicePoint& aFocusPoint,

                          LayoutDeviceCoord aSpanChange,

                          Modifiers aModifiers) override;

  bool IsRepaintThread() override;

  void DispatchToRepaintThread(already_AddRefed<Runnable> aTask) override;

  void NotifyAPZStateChange(const ScrollableLayerGuid& aGuid,

                            APZStateChange aChange, int aArg,

                            Maybe<uint64_t> aInputBlockId) override;

  void UpdateOverscrollVelocity(const ScrollableLayerGuid& aGuid, float aX,

                                float aY, bool aIsRootContent) override;

  void UpdateOverscrollOffset(const ScrollableLayerGuid& aGuid, float aX,

                              float aY, bool aIsRootContent) override;

  void NotifyMozMouseScrollEvent(const ScrollableLayerGuid::ViewID& aScrollId,

                                 const nsString& aEvent) override;

  void NotifyFlushComplete() override;

  void NotifyAsyncScrollbarDragInitiated(

      uint64_t aDragBlockId, const ScrollableLayerGuid::ViewID& aScrollId,

      ScrollDirection aDirection) override;

  void NotifyAsyncScrollbarDragRejected(

      const ScrollableLayerGuid::ViewID& aScrollId) override;

  void NotifyAsyncAutoscrollRejected(

      const ScrollableLayerGuid::ViewID& aScrollId) override;

  void CancelAutoscroll(const ScrollableLayerGuid& aScrollId) override;

  void NotifyScaleGestureComplete(const ScrollableLayerGuid& aGuid,

                                  float aScale) override;

  void ActorDestroy(ActorDestroyReason aWhy) override;

  void Destroy() override;

  mozilla::ipc::IPCResult RecvDestroy();

  bool IsRemote() override;

 private:

  nsCOMPtr<nsISerialEventTarget> mCompositorThread;

  bool mCanSend;

  void HandleTapOnParentProcessMainThread(

      TapType aTapType, LayoutDevicePoint aPoint, Modifiers aModifiers,

      ScrollableLayerGuid aGuid, uint64_t aInputBlockId,

      const Maybe<DoubleTapToZoomMetrics>& aDoubleTapToZoomMetrics);

  void HandleTapOnGPUProcessMainThread(

      TapType aTapType, LayoutDevicePoint aPoint, Modifiers aModifiers,

      ScrollableLayerGuid aGuid, uint64_t aInputBlockId,

      const Maybe<DoubleTapToZoomMetrics>& aDoubleTapToZoomMetrics);

  void NotifyPinchGestureOnCompositorThread(

      PinchGestureInput::PinchGestureType aType,

      const ScrollableLayerGuid& aGuid, const LayoutDevicePoint& aFocusPoint,

      LayoutDeviceCoord aSpanChange, Modifiers aModifiers);

  void CancelAutoscrollInProcess(const ScrollableLayerGuid& aScrollId);

  void CancelAutoscrollCrossProcess(const ScrollableLayerGuid& aScrollId);

  void NotifyScaleGestureCompleteInProcess(const ScrollableLayerGuid& aGuid,

                                           float aScale);

  void NotifyScaleGestureCompleteCrossProcess(const ScrollableLayerGuid& aGuid,

                                              float aScale);

};

}  // namespace layers

}  // namespace mozilla

#endif  // mozilla_layers_RemoteContentController_h