APZBridgeChild.h - mozsearch

Enable keyboard shortcuts

/* 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_APZBridgeChild_h

#define mozilla_layers_APZBridgeChild_h

#include "mozilla/layers/APZBridge.h"

#include "mozilla/layers/GeckoContentControllerTypes.h"

#include "mozilla/layers/PAPZBridgeChild.h"

namespace mozilla {

namespace layers {

class RemoteCompositorSession;

class APZBridgeChild : public PAPZBridgeChild, public APZBridge {

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(APZBridgeChild, final)

  using TapType = GeckoContentController_TapType;

 public:

  static RefPtr<APZBridgeChild> Create(const uint64_t& aProcessToken,

                                       Endpoint<PAPZBridgeChild>&& aEndpoint);

  void Destroy();

  void SetCompositorSession(RemoteCompositorSession* aSession);

  APZEventResult ReceiveInputEvent(

      InputData& aEvent,

      InputBlockCallback&& aCallback = InputBlockCallback()) override;

  void SetKeyboardMap(const KeyboardMap& aKeyboardMap) override;

  void SetDPI(float aDpiValue) override;

  void SetBrowserGestureResponse(uint64_t aInputBlockId,

                                 BrowserGestureResponse aResponse) override;

  void StartAutoscroll(const ScrollableLayerGuid& aGuid,

                       const ScreenPoint& aAnchorLocation) override;

  void StopAutoscroll(const ScrollableLayerGuid& aGuid) override;

  void SetLongTapEnabled(bool aTapGestureEnabled) override;

  MOZ_CAN_RUN_SCRIPT_BOUNDARY

  mozilla::ipc::IPCResult RecvHandleTap(

      const TapType& aType, const LayoutDevicePoint& aPoint,

      const Modifiers& aModifiers, const ScrollableLayerGuid& aGuid,

      const uint64_t& aInputBlockId,

      const Maybe<DoubleTapToZoomMetrics>& aDoubleTapToZoomMetrics);

  mozilla::ipc::IPCResult RecvCallInputBlockCallback(

      uint64_t aInputBlockId, const APZHandledResult& handledResult);

  mozilla::ipc::IPCResult RecvNotifyPinchGesture(

      const PinchGestureType& aType, const ScrollableLayerGuid& aGuid,

      const LayoutDevicePoint& aFocusPoint,

      const LayoutDeviceCoord& aSpanChange, const Modifiers& aModifiers);

  mozilla::ipc::IPCResult RecvCancelAutoscroll(

      const ScrollableLayerGuid::ViewID& aScrollId);

  mozilla::ipc::IPCResult RecvNotifyScaleGestureComplete(

      const ScrollableLayerGuid::ViewID& aScrollId, float aScale);

  mozilla::ipc::IPCResult RecvLayerTransforms(

      nsTArray<MatrixMessage>&& aTransforms);

  mozilla::ipc::IPCResult RecvUpdateOverscrollVelocity(

      const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,

      const bool& aIsRootContent);

  mozilla::ipc::IPCResult RecvUpdateOverscrollOffset(

      const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,

      const bool& aIsRootContent);

  mozilla::ipc::IPCResult RecvHideDynamicToolbar();

 protected:

  void ProcessUnhandledEvent(LayoutDeviceIntPoint* aRefPoint,

                             ScrollableLayerGuid* aOutTargetGuid,

                             uint64_t* aOutFocusSequenceNumber,

                             LayersId* aOutLayersId) override;

  void UpdateWheelTransaction(

      LayoutDeviceIntPoint aRefPoint, EventMessage aEventMessage,

      const Maybe<ScrollableLayerGuid>& aTargetGuid) override;

  void ActorDestroy(ActorDestroyReason aWhy) override;

  explicit APZBridgeChild(const uint64_t& aProcessToken);

  virtual ~APZBridgeChild();

 private:

  void Open(Endpoint<PAPZBridgeChild>&& aEndpoint);

  MOZ_CAN_RUN_SCRIPT_BOUNDARY

  void HandleTapOnMainThread(

      const TapType& aType, const LayoutDevicePoint& aPoint,

      const Modifiers& aModifiers, const ScrollableLayerGuid& aGuid,

      const uint64_t& aInputBlockId,

      const Maybe<DoubleTapToZoomMetrics>& aDoubleTapToZoomMetrics);

  void NotifyPinchGestureOnMainThread(const PinchGestureType& aType,

                                      const LayoutDevicePoint& aFocusPoint,

                                      const LayoutDeviceCoord& aSpanChange,

                                      const Modifiers& aModifiers);

  void NotifyScaleGestureCompleteOnMainThread(float aScale);

  void NotifyLayerTransformsOnMainThread(nsTArray<MatrixMessage>&& aTransforms);

  void UpdateOverscrollVelocityOnMainThread(const ScrollableLayerGuid& aGuid,

                                            float aX, float aY,

                                            bool aIsRootContent);

  void UpdateOverscrollOffsetOnMainThread(const ScrollableLayerGuid& aGuid,

                                          float aX, float aY,

                                          bool aIsRootContent);

  void HideDynamicToolbarOnMainThread();

  // Returns null if the compositor session has already been torn down.

  GeckoContentController* GetContentController();

  bool mIsOpen;

  uint64_t mProcessToken;

  // Currently, this can only be used by the main thread

  MOZ_NON_OWNING_REF RemoteCompositorSession* mCompositorSession = nullptr;

  using InputBlockCallbackMap =

      std::unordered_map<uint64_t, InputBlockCallback>;

  InputBlockCallbackMap mInputBlockCallbacks;

};

}  // namespace layers

}  // namespace mozilla

#endif  // mozilla_layers_APZBridgeChild_h