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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_APZChild_h
#define mozilla_layers_APZChild_h

#include "mozilla/layers/PAPZChild.h"

namespace mozilla {

namespace layers {

class GeckoContentController;

/**
 * APZChild implements PAPZChild and is used to remote a GeckoContentController
 * that lives in a different process than where APZ lives.
 */
class APZChild final : public PAPZChild
{
public:
  explicit APZChild(RefPtr<GeckoContentController> aController);
  ~APZChild();

  mozilla::ipc::IPCResult RecvRequestContentRepaint(const FrameMetrics& frame) override;

  mozilla::ipc::IPCResult RecvUpdateOverscrollVelocity(const float& aX, const float& aY, const bool& aIsRootContent) override;

  mozilla::ipc::IPCResult RecvUpdateOverscrollOffset(const float& aX, const float& aY, const bool& aIsRootContent) override;

  mozilla::ipc::IPCResult RecvNotifyMozMouseScrollEvent(const ViewID& aScrollId,
                                                        const nsString& aEvent) override;

  mozilla::ipc::IPCResult RecvNotifyAPZStateChange(const ScrollableLayerGuid& aGuid,
                                                   const APZStateChange& aChange,
                                                   const int& aArg) override;

  mozilla::ipc::IPCResult RecvNotifyFlushComplete() override;

  mozilla::ipc::IPCResult RecvNotifyAsyncScrollbarDragRejected(const ViewID& aScrollId) override;

  mozilla::ipc::IPCResult RecvNotifyAsyncAutoscrollRejected(const ViewID& aScrollId) override;

  mozilla::ipc::IPCResult RecvDestroy() override;

private:
  RefPtr<GeckoContentController> mController;
};

} // namespace layers

} // namespace mozilla

#endif // mozilla_layers_APZChild_h