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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  * 1. Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *
     11  * 2. Redistributions in binary form must reproduce the above
     12  * copyright notice, this list of conditions and the following disclaimer
     13  * in the documentation and/or other materials provided with the
     14  * distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. AND ITS CONTRIBUTORS
     17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC.
     20  * OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include "config.h"
     30 #include "web/painting/ContinuousPainter.h"
     31 
     32 #include "platform/TraceEvent.h"
     33 #include "platform/graphics/GraphicsLayer.h"
     34 #include "web/PageOverlayList.h"
     35 
     36 using namespace WebCore;
     37 
     38 namespace blink {
     39 
     40 void ContinuousPainter::setNeedsDisplayRecursive(GraphicsLayer* layer, PageOverlayList* pageOverlays)
     41 {
     42     if (!layer)
     43         return;
     44 
     45     if (pageOverlays && pageOverlays->findGraphicsLayer(layer) != WTF::kNotFound)
     46         return;
     47 
     48     TRACE_EVENT0("webkit", "ContinuousPainter::setNeedsDisplayRecursive");
     49     layer->setNeedsDisplay();
     50 
     51     setNeedsDisplayRecursive(layer->maskLayer(), pageOverlays);
     52     setNeedsDisplayRecursive(layer->contentsClippingMaskLayer(), pageOverlays);
     53     setNeedsDisplayRecursive(layer->replicaLayer(), pageOverlays);
     54 
     55     const Vector<GraphicsLayer*>& children = layer->children();
     56     Vector<GraphicsLayer*>::const_iterator it;
     57     for (it = children.begin(); it != children.end(); ++it)
     58         setNeedsDisplayRecursive(*it, pageOverlays);
     59 }
     60 
     61 } // namespace blink
     62