/* -*- 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/. */

#include "mozilla/AnimationEventDispatcher.h"

#include "mozilla/EventDispatcher.h"

#include "nsRefreshDriver.h"

namespace mozilla {

NS_IMPL_CYCLE_COLLECTION_CLASS(AnimationEventDispatcher)

NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(AnimationEventDispatcher)

  tmp->ClearEventQueue();

NS_IMPL_CYCLE_COLLECTION_UNLINK_END

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(AnimationEventDispatcher)

  for (auto& info : tmp->mPendingEvents) {

    ImplCycleCollectionTraverse(cb, info.mTarget,

      "mozilla::AnimationEventDispatcher.mPendingEvents.mTarget");

    ImplCycleCollectionTraverse(cb, info.mAnimation,

      "mozilla::AnimationEventDispatcher.mPendingEvents.mAnimation");

  }

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END

NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(AnimationEventDispatcher, AddRef)

NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(AnimationEventDispatcher, Release)

void

AnimationEventDispatcher::Disconnect()

{

  if (mIsObserving) {

    MOZ_ASSERT(mPresContext && mPresContext->RefreshDriver(),

               "The pres context and the refresh driver should be still "

               "alive if we haven't disassociated from the refresh driver");

    mPresContext->RefreshDriver()->CancelPendingAnimationEvents(this);

    mIsObserving = false;

  }

  mPresContext = nullptr;

}

void

AnimationEventDispatcher::QueueEvent(AnimationEventInfo&& aEvent)

{

  mPendingEvents.AppendElement(std::move(aEvent));

  mIsSorted = false;

  ScheduleDispatch();

}

void

AnimationEventDispatcher::QueueEvents(nsTArray<AnimationEventInfo>&& aEvents)

{

  mPendingEvents.AppendElements(std::move(aEvents));

  mIsSorted = false;

  ScheduleDispatch();

}

void

AnimationEventDispatcher::ScheduleDispatch()

{

  MOZ_ASSERT(mPresContext, "The pres context should be valid");

  if (!mIsObserving) {

    mPresContext->RefreshDriver()->ScheduleAnimationEventDispatch(this);

    mIsObserving = true;

  }

}

} // namespace mozilla