| // 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 "ui/compositor/callback_layer_animation_observer.h" |
| |
| #include "base/bind.h" |
| #include "ui/compositor/layer_animation_sequence.h" |
| |
| namespace ui { |
| |
| void CallbackLayerAnimationObserver::DummyAnimationStartedCallback( |
| const CallbackLayerAnimationObserver&) {} |
| |
| bool CallbackLayerAnimationObserver::DummyAnimationEndedCallback( |
| bool should_delete_observer, |
| const CallbackLayerAnimationObserver&) { |
| return should_delete_observer; |
| } |
| |
| CallbackLayerAnimationObserver::CallbackLayerAnimationObserver( |
| AnimationStartedCallback animation_started_callback, |
| AnimationEndedCallback animation_ended_callback) |
| : animation_started_callback_(animation_started_callback), |
| animation_ended_callback_(animation_ended_callback) {} |
| |
| CallbackLayerAnimationObserver::CallbackLayerAnimationObserver( |
| AnimationStartedCallback animation_started_callback, |
| bool should_delete_observer) |
| : animation_started_callback_(animation_started_callback), |
| animation_ended_callback_(base::Bind( |
| &CallbackLayerAnimationObserver::DummyAnimationEndedCallback, |
| should_delete_observer)) {} |
| |
| CallbackLayerAnimationObserver::CallbackLayerAnimationObserver( |
| AnimationEndedCallback animation_ended_callback) |
| : animation_started_callback_(base::Bind( |
| &CallbackLayerAnimationObserver::DummyAnimationStartedCallback)), |
| animation_ended_callback_(animation_ended_callback) {} |
| |
| CallbackLayerAnimationObserver::~CallbackLayerAnimationObserver() { |
| if (destroyed_) |
| *destroyed_ = true; |
| } |
| |
| void CallbackLayerAnimationObserver::SetActive() { |
| active_ = true; |
| |
| bool destroyed = false; |
| destroyed_ = &destroyed; |
| |
| CheckAllSequencesStarted(); |
| |
| if (destroyed) |
| return; |
| destroyed_ = nullptr; |
| |
| CheckAllSequencesCompleted(); |
| } |
| |
| void CallbackLayerAnimationObserver::OnLayerAnimationStarted( |
| ui::LayerAnimationSequence* sequence) { |
| CHECK_LT(started_count_, attached_sequence_count_); |
| ++started_count_; |
| CheckAllSequencesStarted(); |
| } |
| |
| void CallbackLayerAnimationObserver::OnLayerAnimationEnded( |
| ui::LayerAnimationSequence* sequence) { |
| CHECK_LT(GetNumSequencesCompleted(), attached_sequence_count_); |
| ++successful_count_; |
| CheckAllSequencesCompleted(); |
| } |
| |
| void CallbackLayerAnimationObserver::OnLayerAnimationAborted( |
| ui::LayerAnimationSequence* sequence) { |
| CHECK_LT(GetNumSequencesCompleted(), attached_sequence_count_); |
| ++aborted_count_; |
| CheckAllSequencesCompleted(); |
| } |
| |
| void CallbackLayerAnimationObserver::OnLayerAnimationScheduled( |
| ui::LayerAnimationSequence* sequence) {} |
| |
| bool CallbackLayerAnimationObserver::RequiresNotificationWhenAnimatorDestroyed() |
| const { |
| return true; |
| } |
| |
| void CallbackLayerAnimationObserver::OnAttachedToSequence( |
| ui::LayerAnimationSequence* sequence) { |
| ++attached_sequence_count_; |
| } |
| |
| void CallbackLayerAnimationObserver::OnDetachedFromSequence( |
| ui::LayerAnimationSequence* sequence) { |
| CHECK_LT(detached_sequence_count_, attached_sequence_count_); |
| ++detached_sequence_count_; |
| } |
| |
| int CallbackLayerAnimationObserver::GetNumSequencesCompleted() { |
| return aborted_count_ + successful_count_; |
| } |
| |
| void CallbackLayerAnimationObserver::CheckAllSequencesStarted() { |
| if (active_ && attached_sequence_count_ == started_count_) |
| animation_started_callback_.Run(*this); |
| } |
| |
| void CallbackLayerAnimationObserver::CheckAllSequencesCompleted() { |
| if (active_ && GetNumSequencesCompleted() == attached_sequence_count_) { |
| active_ = false; |
| bool destroyed = false; |
| destroyed_ = &destroyed; |
| |
| bool should_delete = animation_ended_callback_.Run(*this); |
| |
| if (destroyed) { |
| if (should_delete) |
| LOG(WARNING) << "CallbackLayerAnimationObserver was explicitly " |
| "destroyed AND was requested to be destroyed via the " |
| "AnimationEndedCallback's return value."; |
| return; |
| } |
| destroyed_ = nullptr; |
| |
| if (should_delete) |
| delete this; |
| } |
| } |
| |
| } // namespace ui |