| // 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 CompositorMutableStateProvider_h |
| #define CompositorMutableStateProvider_h |
| |
| #include "platform/PlatformExport.h" |
| |
| #include <cstdint> |
| #include <memory> |
| |
| namespace cc { |
| class LayerTreeImpl; |
| } // namespace cc |
| |
| namespace blink { |
| |
| class CompositorMutableState; |
| struct CompositorMutations; |
| |
| // This class is a window onto compositor-owned state. It vends out wrappers |
| // around per-element bits of this state. |
| class PLATFORM_EXPORT CompositorMutableStateProvider { |
| public: |
| CompositorMutableStateProvider(cc::LayerTreeImpl*, CompositorMutations*); |
| ~CompositorMutableStateProvider(); |
| |
| std::unique_ptr<CompositorMutableState> getMutableStateFor(uint64_t elementId); |
| |
| private: |
| cc::LayerTreeImpl* m_tree; |
| CompositorMutations* m_mutations; |
| }; |
| |
| } // namespace blink |
| |
| #endif // CompositorMutableStateProvider_h |