ui/compositor/layer_owner_delegate.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_COMPOSITOR_LAYER_OWNER_DELEGATE_H_
   6 #define UI_COMPOSITOR_LAYER_OWNER_DELEGATE_H_
   7
   8 #include "ui/compositor/compositor_export.h"
   9
  10 namespace ui {
  11 class Layer;
  12
  13 // Called from RecreateLayer() after the new layer was created. old_layer is
  14 // the layer that will be returned to the caller of RecreateLayer, new_layer
  15 // will be the layer now used. Used when the layer has external content
  16 // (SetTextureMailbox / SetDelegatedFrame was called).
  17 class COMPOSITOR_EXPORT LayerOwnerDelegate {
  18  public:
  19   virtual void OnLayerRecreated(Layer* old_layer, Layer* new_layer) = 0;
  20
  21  protected:
  22   virtual ~LayerOwnerDelegate() {}
  23 };
  24
  25 }  // namespace ui
  26
  27 #endif  // UI_COMPOSITOR_LAYER_OWNER_DELEGATE_H_