| // 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. |
| |
| #ifndef CC_TREES_LAYER_TREE_H_ |
| #define CC_TREES_LAYER_TREE_H_ |
| |
| #include <unordered_map> |
| #include <unordered_set> |
| |
| #include "base/macros.h" |
| #include "cc/base/cc_export.h" |
| |
| namespace cc { |
| |
| namespace proto { |
| class LayerTree; |
| class LayerUpdate; |
| } |
| |
| class AnimationHost; |
| class Layer; |
| |
| class CC_EXPORT LayerTree { |
| public: |
| using LayerSet = std::unordered_set<Layer*>; |
| using LayerIdMap = std::unordered_map<int, Layer*>; |
| |
| explicit LayerTree(std::unique_ptr<AnimationHost> animation_host); |
| ~LayerTree(); |
| |
| void RegisterLayer(Layer* layer); |
| void UnregisterLayer(Layer* layer); |
| Layer* LayerById(int id) const; |
| bool UpdateLayers(const LayerList& update_layer_list, |
| bool* content_is_suitable_for_gpu); |
| |
| void AddLayerShouldPushProperties(Layer* layer); |
| void RemoveLayerShouldPushProperties(Layer* layer); |
| std::unordered_set<Layer*>& LayersThatShouldPushProperties(); |
| bool LayerNeedsPushPropertiesForTesting(Layer* layer) const; |
| |
| void ToProtobuf(proto::LayerTree* proto); |
| void FromProtobuf(const proto::LayerTree& proto); |
| |
| AnimationHost* animation_host() const { return animation_host_.get(); } |
| |
| bool in_paint_layer_contents() const { return in_paint_layer_contents_; } |
| |
| private: |
| friend class LayerTreeHostSerializationTest; |
| |
| // Set of layers that need to push properties. |
| LayerSet layers_that_should_push_properties_; |
| |
| // Layer id to Layer map. |
| LayerIdMap layer_id_map_; |
| |
| bool in_paint_layer_contents_; |
| |
| std::unique_ptr<AnimationHost> animation_host_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LayerTree); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_TREES_LAYER_TREE_H_ |