/* -*- 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_dom_CoalescedMouseData_h

#define mozilla_dom_CoalescedMouseData_h

#include "CoalescedInputData.h"

#include "mozilla/MouseEvents.h"

#include "nsRefreshDriver.h"

namespace mozilla {

namespace dom {

class CoalescedMouseData final : public CoalescedInputData<WidgetMouseEvent>

{

public:

  CoalescedMouseData()

  {

    MOZ_COUNT_CTOR(mozilla::dom::CoalescedMouseData);

  }

  ~CoalescedMouseData()

  {

    MOZ_COUNT_DTOR(mozilla::dom::CoalescedMouseData);

  }

  void Coalesce(const WidgetMouseEvent& aEvent,

                const ScrollableLayerGuid& aGuid,

                const uint64_t& aInputBlockId);

  bool CanCoalesce(const WidgetMouseEvent& aEvent,

                   const ScrollableLayerGuid& aGuid,

                   const uint64_t& aInputBlockId);

};

class CoalescedMouseMoveFlusher final : public nsARefreshObserver {

public:

  explicit CoalescedMouseMoveFlusher(TabChild* aTabChild)

    : mTabChild(aTabChild)

  {

    MOZ_ASSERT(mTabChild);

  }

  virtual void WillRefresh(mozilla::TimeStamp aTime) override;

  NS_INLINE_DECL_REFCOUNTING(CoalescedMouseMoveFlusher, override)

  void StartObserver();

  void RemoveObserver();

private:

  ~CoalescedMouseMoveFlusher() {

    RemoveObserver();

  }

  nsRefreshDriver* GetRefreshDriver();

  TabChild* mTabChild;

  RefPtr<nsRefreshDriver> mRefreshDriver;

};

} // namespace dom

} // namespace mozilla

#endif // mozilla_dom_CoalescedMouseData_h