src/third_party/WebKit/Source/web/painting/ContinuousPainter.cpp

   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.
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  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