third_party/WebKit/Source/platform/animation/CompositorAnimationTimeline.cpp

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "platform/animation/CompositorAnimationTimeline.h"

#include "cc/animation/animation_host.h"
#include "cc/animation/animation_id_provider.h"
#include "platform/animation/CompositorAnimationHost.h"
#include "platform/animation/CompositorAnimationPlayer.h"
#include "platform/animation/CompositorAnimationPlayerClient.h"

namespace blink {

CompositorAnimationTimeline::CompositorAnimationTimeline()
    : m_animationTimeline(cc::AnimationTimeline::Create(
          cc::AnimationIdProvider::NextTimelineId())) {}

CompositorAnimationTimeline::~CompositorAnimationTimeline() {
  // Detach timeline from host, otherwise it stays there (leaks) until
  // compositor shutdown.
  if (m_animationTimeline->animation_host())
    m_animationTimeline->animation_host()->RemoveAnimationTimeline(
        m_animationTimeline);
}

cc::AnimationTimeline* CompositorAnimationTimeline::animationTimeline() const {
  return m_animationTimeline.get();
}

CompositorAnimationHost CompositorAnimationTimeline::compositorAnimationHost() {
  return CompositorAnimationHost(m_animationTimeline->animation_host());
}

void CompositorAnimationTimeline::playerAttached(
    const blink::CompositorAnimationPlayerClient& client) {
  if (client.compositorPlayer())
    m_animationTimeline->AttachPlayer(
        client.compositorPlayer()->ccAnimationPlayer());
}

void CompositorAnimationTimeline::playerDestroyed(
    const blink::CompositorAnimationPlayerClient& client) {
  if (client.compositorPlayer())
    m_animationTimeline->DetachPlayer(
        client.compositorPlayer()->ccAnimationPlayer());
}

}  // namespace blink