| // Copyright 2015 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_WEB_ANIMATIONS_ANIMATION_SET_H_ |
| #define COBALT_WEB_ANIMATIONS_ANIMATION_SET_H_ |
| |
| #include "cobalt/web_animations/animation_set.h" |
| |
| #include <set> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/ref_counted.h" |
| #include "cobalt/cssom/property_definitions.h" |
| #include "cobalt/web_animations/animation.h" |
| |
| namespace cobalt { |
| namespace web_animations { |
| |
| // Defines a data structure to maintain a set of animations. Creating a new |
| // custom class for this datastructure allows us to create many internal |
| // data structures to allow for efficient lookup of different data, such as |
| // acquiring the set of all properties affected. |
| class AnimationSet : public base::RefCounted<AnimationSet> { |
| public: |
| // We use raw pointers here to avoid cyclic references; AnimationSets |
| // are referenced by Animations themselves and it's expected that the |
| // Animation destructor will deregister all sets it's contained within. |
| typedef std::set<Animation*> InternalSet; |
| |
| AnimationSet(); |
| |
| void AddAnimation(Animation* animation); |
| void RemoveAnimation(Animation* animation); |
| |
| bool IsEmpty() const { return animations_.empty(); } |
| bool IsPropertyAnimated(cssom::PropertyKey property_name) const; |
| |
| int GetSize() const { return static_cast<int>(animations_.size()); } |
| |
| const InternalSet& animations() const { return animations_; } |
| |
| private: |
| ~AnimationSet() {} |
| |
| InternalSet animations_; |
| |
| friend class base::RefCounted<AnimationSet>; |
| |
| DISALLOW_COPY_AND_ASSIGN(AnimationSet); |
| }; |
| |
| } // namespace web_animations |
| } // namespace cobalt |
| |
| #endif // COBALT_WEB_ANIMATIONS_ANIMATION_SET_H_ |