1 files changed, 123 insertions, 0 deletions
diff --git a/gfx/layers/ipc/RemoteContentController.h b/gfx/layers/ipc/RemoteContentController.h
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+++ b/gfx/layers/ipc/RemoteContentController.h
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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