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// 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_timeline.h"
#include <algorithm>
#include "cc/animation/animation_player.h"
namespace cc {
scoped_refptr<AnimationTimeline> AnimationTimeline::Create(int id) {
return make_scoped_refptr(new AnimationTimeline(id));
}
AnimationTimeline::AnimationTimeline(int id)
: id_(id), animation_host_(), is_impl_only_(false) {
}
AnimationTimeline::~AnimationTimeline() {
for (auto& player : players_)
player->SetAnimationTimeline(nullptr);
}
scoped_refptr<AnimationTimeline> AnimationTimeline::CreateImplInstance() const {
scoped_refptr<AnimationTimeline> timeline = AnimationTimeline::Create(id());
return timeline;
}
void AnimationTimeline::SetAnimationHost(AnimationHost* animation_host) {
animation_host_ = animation_host;
for (auto& player : players_)
player->SetAnimationHost(animation_host);
}
void AnimationTimeline::AttachPlayer(scoped_refptr<AnimationPlayer> player) {
DCHECK(animation_host_);
player->SetAnimationHost(animation_host_);
player->SetAnimationTimeline(this);
players_.push_back(player);
}
void AnimationTimeline::DetachPlayer(scoped_refptr<AnimationPlayer> player) {
for (AnimationPlayerList::iterator iter = players_.begin();
iter != players_.end(); ++iter) {
if (iter->get() != player)
continue;
ErasePlayers(iter, iter + 1);
break;
}
player->SetAnimationHost(nullptr);
}
AnimationPlayer* AnimationTimeline::GetPlayerById(int player_id) const {
for (auto& player : players_)
if (player->id() == player_id)
return player.get();
return nullptr;
}
void AnimationTimeline::ClearPlayers() {
ErasePlayers(players_.begin(), players_.end());
}
void AnimationTimeline::PushPropertiesTo(AnimationTimeline* timeline_impl) {
PushAttachedPlayersToImplThread(timeline_impl);
RemoveDetachedPlayersFromImplThread(timeline_impl);
PushPropertiesToImplThread(timeline_impl);
}
void AnimationTimeline::PushAttachedPlayersToImplThread(
AnimationTimeline* timeline_impl) const {
for (auto& player : players_) {
AnimationPlayer* player_impl = timeline_impl->GetPlayerById(player->id());
if (player_impl)
continue;
scoped_refptr<AnimationPlayer> to_add = player->CreateImplInstance();
timeline_impl->AttachPlayer(to_add.get());
}
}
void AnimationTimeline::RemoveDetachedPlayersFromImplThread(
AnimationTimeline* timeline_impl) const {
AnimationPlayerList& players_impl = timeline_impl->players_;
auto to_erase =
std::partition(players_impl.begin(), players_impl.end(),
[this](AnimationPlayerList::value_type player_impl) {
return GetPlayerById(player_impl->id());
});
timeline_impl->ErasePlayers(to_erase, players_impl.end());
}
void AnimationTimeline::ErasePlayers(AnimationPlayerList::iterator begin,
AnimationPlayerList::iterator end) {
for (auto i = begin; i != end; ++i) {
auto& player = *i;
if (player->element_animations())
player->DetachLayer();
player->SetAnimationTimeline(nullptr);
}
players_.erase(begin, end);
}
void AnimationTimeline::PushPropertiesToImplThread(
AnimationTimeline* timeline_impl) {
for (auto& player : players_) {
AnimationPlayer* player_impl = timeline_impl->GetPlayerById(player->id());
if (player_impl)
player->PushPropertiesTo(player_impl);
}
}
} // namespace cc
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