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+/* -*- 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 {
+
+/**
+ * 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) 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 HandleTapOnMainThread(TapType aType, LayoutDevicePoint aPoint,
+ Modifiers aModifiers, ScrollableLayerGuid aGuid,
+ uint64_t aInputBlockId);
+ void HandleTapOnCompositorThread(TapType aType, LayoutDevicePoint aPoint,
+ Modifiers aModifiers,
+ ScrollableLayerGuid aGuid,
+ uint64_t aInputBlockId);
+ 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