| /* |
| * Copyright 2016 Google Inc. 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_DEBUG_RENDER_OVERLAY_H_ |
| #define COBALT_DEBUG_RENDER_OVERLAY_H_ |
| |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "base/memory/ref_counted.h" |
| #include "cobalt/layout/layout_manager.h" |
| #include "cobalt/render_tree/node.h" |
| |
| namespace cobalt { |
| namespace debug { |
| |
| // Inserted into the render callback pipeline to add additional nodes to the |
| // render tree. |
| class RenderOverlay { |
| public: |
| typedef layout::LayoutManager::LayoutResults LayoutResults; |
| |
| typedef base::Callback<void(const LayoutResults&)> |
| OnRenderTreeProducedCallback; |
| |
| explicit RenderOverlay( |
| const OnRenderTreeProducedCallback& render_tree_produced_callback); |
| |
| // Called when the input layout changes. |
| void OnRenderTreeProduced(const LayoutResults& layout_results); |
| |
| // Updates the overlay that will be added to the input layout. |
| void SetOverlay(const scoped_refptr<render_tree::Node>& overlay); |
| |
| private: |
| // Adds the overlay (if any) to the input layout and passes on to the |
| // callback specified in the constructor. |
| void Process(); |
| |
| OnRenderTreeProducedCallback render_tree_produced_callback_; |
| scoped_refptr<render_tree::Node> overlay_; |
| LayoutResults input_layout_; |
| base::optional<base::TimeTicks> input_receipt_time_; |
| }; |
| |
| } // namespace debug |
| } // namespace cobalt |
| |
| #endif // COBALT_DEBUG_RENDER_OVERLAY_H_ |