Home | History | Annotate | Download | only in compositing 
      1 /*
      2  * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
      3  * Copyright (C) 2014 Google Inc. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #ifndef GraphicsLayerTreeBuilder_h
     28 #define GraphicsLayerTreeBuilder_h
     29 
     30 #include "platform/graphics/GraphicsLayer.h"
     31 
     32 namespace blink {
     33 
     34 class RenderLayer;
     35 
     36 class GraphicsLayerTreeBuilder {
     37 public:
     38     GraphicsLayerTreeBuilder();
     39     ~GraphicsLayerTreeBuilder();
     40 
     41     struct AncestorInfo {
     42         AncestorInfo()
     43             : enclosingCompositedLayer(0)
     44             , childLayersOfEnclosingCompositedLayer(0)
     45         {
     46         }
     47 
     48         RenderLayer* enclosingCompositedLayer;
     49         GraphicsLayerVector* childLayersOfEnclosingCompositedLayer;
     50     };
     51 
     52     void rebuild(RenderLayer&, AncestorInfo);
     53 };
     54 
     55 } // namespace blink
     56 
     57 #endif // GraphicsLayerTreeBuilder_h
     58