cc/trees/mutator_host_client.h

// 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.

#ifndef CC_TREES_MUTATOR_HOST_CLIENT_H_
#define CC_TREES_MUTATOR_HOST_CLIENT_H_

namespace gfx {
class Transform;
class ScrollOffset;
}

namespace cc {

class FilterOperations;
class Layer;

enum class LayerTreeType { ACTIVE, PENDING };

class MutatorHostClient {
 public:
  virtual bool IsLayerInTree(int layer_id, LayerTreeType tree_type) const = 0;
  virtual void SetMutatorsNeedCommit() = 0;
  virtual void SetMutatorsNeedRebuildPropertyTrees() = 0;

  virtual void SetLayerFilterMutated(int layer_id,
                                     LayerTreeType tree_type,
                                     const FilterOperations& filters) = 0;
  virtual void SetLayerOpacityMutated(int layer_id,
                                      LayerTreeType tree_type,
                                      float opacity) = 0;
  virtual void SetLayerTransformMutated(int layer_id,
                                        LayerTreeType tree_type,
                                        const gfx::Transform& transform) = 0;
  virtual void SetLayerScrollOffsetMutated(
      int layer_id,
      LayerTreeType tree_type,
      const gfx::ScrollOffset& scroll_offset) = 0;

  virtual void LayerTransformIsPotentiallyAnimatingChanged(
      int layer_id,
      LayerTreeType tree_type,
      bool is_animating) = 0;

  virtual void ScrollOffsetAnimationFinished() = 0;
  virtual gfx::ScrollOffset GetScrollOffsetForAnimation(int layer_id) const = 0;
};

}  // namespace cc

#endif  // CC_TREES_MUTATOR_HOST_CLIENT_H_