| // Copyright 2015 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 "cc/animation/animation_host.h" |
| |
| #include <algorithm> |
| |
| #include "cc/animation/animation_player.h" |
| #include "cc/animation/animation_registrar.h" |
| #include "cc/animation/animation_timeline.h" |
| #include "cc/animation/element_animations.h" |
| |
| namespace cc { |
| |
| scoped_ptr<AnimationHost> AnimationHost::Create( |
| ThreadInstance thread_instance) { |
| return make_scoped_ptr(new AnimationHost(thread_instance)); |
| } |
| |
| AnimationHost::AnimationHost(ThreadInstance thread_instance) |
| : animation_registrar_(AnimationRegistrar::Create()), |
| mutator_host_client_(), |
| thread_instance_(thread_instance) { |
| } |
| |
| AnimationHost::~AnimationHost() { |
| ClearTimelines(); |
| DCHECK(!mutator_host_client()); |
| DCHECK(layer_to_element_animations_map_.empty()); |
| } |
| |
| AnimationTimeline* AnimationHost::GetTimelineById(int timeline_id) const { |
| for (auto& timeline : timelines_) |
| if (timeline->id() == timeline_id) |
| return timeline.get(); |
| return nullptr; |
| } |
| |
| void AnimationHost::ClearTimelines() { |
| EraseTimelines(timelines_.begin(), timelines_.end()); |
| } |
| |
| void AnimationHost::EraseTimelines(AnimationTimelineList::iterator begin, |
| AnimationTimelineList::iterator end) { |
| for (auto i = begin; i != end; ++i) { |
| auto& timeline = *i; |
| timeline->ClearPlayers(); |
| timeline->SetAnimationHost(nullptr); |
| } |
| |
| timelines_.erase(begin, end); |
| } |
| |
| void AnimationHost::AddAnimationTimeline( |
| scoped_refptr<AnimationTimeline> timeline) { |
| timeline->SetAnimationHost(this); |
| timelines_.push_back(timeline); |
| } |
| |
| void AnimationHost::RemoveAnimationTimeline( |
| scoped_refptr<AnimationTimeline> timeline) { |
| for (auto iter = timelines_.begin(); iter != timelines_.end(); ++iter) { |
| if (iter->get() != timeline) |
| continue; |
| |
| EraseTimelines(iter, iter + 1); |
| break; |
| } |
| } |
| |
| void AnimationHost::RegisterLayer(int layer_id, LayerTreeType tree_type) { |
| ElementAnimations* element_animations = |
| GetElementAnimationsForLayerId(layer_id); |
| if (element_animations) |
| element_animations->LayerRegistered(layer_id, tree_type); |
| } |
| |
| void AnimationHost::UnregisterLayer(int layer_id, LayerTreeType tree_type) { |
| ElementAnimations* element_animations = |
| GetElementAnimationsForLayerId(layer_id); |
| if (element_animations) |
| element_animations->LayerUnregistered(layer_id, tree_type); |
| } |
| |
| void AnimationHost::RegisterPlayerForLayer(int layer_id, |
| AnimationPlayer* player) { |
| DCHECK(layer_id); |
| DCHECK(player); |
| |
| ElementAnimations* element_animations = |
| GetElementAnimationsForLayerId(layer_id); |
| if (!element_animations) { |
| auto new_element_animations = ElementAnimations::Create(this); |
| element_animations = new_element_animations.get(); |
| |
| layer_to_element_animations_map_.add(layer_id, |
| new_element_animations.Pass()); |
| element_animations->CreateLayerAnimationController(layer_id); |
| } |
| |
| DCHECK(element_animations); |
| element_animations->AddPlayer(player); |
| } |
| |
| void AnimationHost::UnregisterPlayerForLayer(int layer_id, |
| AnimationPlayer* player) { |
| DCHECK(layer_id); |
| DCHECK(player); |
| |
| ElementAnimations* element_animations = |
| GetElementAnimationsForLayerId(layer_id); |
| DCHECK(element_animations); |
| element_animations->RemovePlayer(player); |
| |
| if (element_animations->IsEmpty()) { |
| element_animations->DestroyLayerAnimationController(); |
| layer_to_element_animations_map_.erase(layer_id); |
| element_animations = nullptr; |
| } |
| } |
| |
| void AnimationHost::SetMutatorHostClient(MutatorHostClient* client) { |
| if (mutator_host_client_ == client) |
| return; |
| |
| mutator_host_client_ = client; |
| } |
| |
| void AnimationHost::SetNeedsCommit() { |
| DCHECK(mutator_host_client_); |
| mutator_host_client_->SetMutatorsNeedCommit(); |
| } |
| |
| void AnimationHost::PushPropertiesTo(AnimationHost* host_impl) { |
| PushTimelinesToImplThread(host_impl); |
| RemoveTimelinesFromImplThread(host_impl); |
| PushPropertiesToImplThread(host_impl); |
| } |
| |
| void AnimationHost::PushTimelinesToImplThread(AnimationHost* host_impl) const { |
| for (auto& timeline : timelines_) { |
| AnimationTimeline* timeline_impl = |
| host_impl->GetTimelineById(timeline->id()); |
| if (timeline_impl) |
| continue; |
| |
| scoped_refptr<AnimationTimeline> to_add = timeline->CreateImplInstance(); |
| host_impl->AddAnimationTimeline(to_add.get()); |
| } |
| } |
| |
| void AnimationHost::RemoveTimelinesFromImplThread( |
| AnimationHost* host_impl) const { |
| AnimationTimelineList& timelines_impl = host_impl->timelines_; |
| |
| auto to_erase = |
| std::partition(timelines_impl.begin(), timelines_impl.end(), |
| [this](AnimationTimelineList::value_type timeline_impl) { |
| return timeline_impl->is_impl_only() || |
| GetTimelineById(timeline_impl->id()); |
| }); |
| |
| host_impl->EraseTimelines(to_erase, timelines_impl.end()); |
| } |
| |
| void AnimationHost::PushPropertiesToImplThread(AnimationHost* host_impl) { |
| // Firstly, sync all players with impl thread to create ElementAnimations and |
| // layer animation controllers. |
| for (auto& timeline : timelines_) { |
| AnimationTimeline* timeline_impl = |
| host_impl->GetTimelineById(timeline->id()); |
| if (timeline_impl) |
| timeline->PushPropertiesTo(timeline_impl); |
| } |
| |
| // Secondly, sync properties for created layer animation controllers. |
| for (auto& kv : layer_to_element_animations_map_) { |
| ElementAnimations* element_animations = kv.second; |
| ElementAnimations* element_animations_impl = |
| host_impl->GetElementAnimationsForLayerId(kv.first); |
| if (element_animations_impl) |
| element_animations->PushPropertiesTo(element_animations_impl); |
| } |
| } |
| |
| LayerAnimationController* AnimationHost::GetControllerForLayerId( |
| int layer_id) const { |
| const ElementAnimations* element_animations = |
| GetElementAnimationsForLayerId(layer_id); |
| if (!element_animations) |
| return nullptr; |
| |
| return element_animations->layer_animation_controller(); |
| } |
| |
| ElementAnimations* AnimationHost::GetElementAnimationsForLayerId( |
| int layer_id) const { |
| DCHECK(layer_id); |
| auto iter = layer_to_element_animations_map_.find(layer_id); |
| return iter == layer_to_element_animations_map_.end() ? nullptr |
| : iter->second; |
| } |
| |
| } // namespace cc |