src/third_party/WebKit/Source/platform/graphics/GraphicsLayerDebugInfo.cpp

   1 /*
   2  * Copyright (C) 2014 Google Inc. All rights reserved.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public License
  15  * along with this library; see the file COPYING.LIB.  If not, write to
  16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  */
  19
  20 #include "config.h"
  21
  22 #include "platform/graphics/GraphicsLayerDebugInfo.h"
  23 #include "public/platform/WebGraphicsLayerDebugInfo.h"
  24 #include "public/platform/WebVector.h"
  25
  26 #include "wtf/text/CString.h"
  27
  28 namespace blink {
  29
  30 GraphicsLayerDebugInfo::GraphicsLayerDebugInfo()
  31     : m_compositingReasons(CompositingReasonNone)
  32 {
  33 }
  34
  35 GraphicsLayerDebugInfo::~GraphicsLayerDebugInfo() { }
  36
  37 void GraphicsLayerDebugInfo::appendAsTraceFormat(WebString* out) const
  38 {
  39     RefPtr<JSONObject> jsonObject = JSONObject::create();
  40     appendLayoutRects(jsonObject.get());
  41     appendCompositingReasons(jsonObject.get());
  42     appendDebugName(jsonObject.get());
  43     appendOwnerNodeId(jsonObject.get());
  44     *out = jsonObject->toJSONString();
  45 }
  46
  47 void GraphicsLayerDebugInfo::getAnnotatedInvalidationRects(WebVector<WebAnnotatedInvalidationRect>& result) const
  48 {
  49     result.assign(m_invalidations.data(), m_invalidations.size());
  50 }
  51
  52 GraphicsLayerDebugInfo* GraphicsLayerDebugInfo::clone() const
  53 {
  54     GraphicsLayerDebugInfo* toReturn = new GraphicsLayerDebugInfo();
  55     for (size_t i = 0; i < m_currentLayoutRects.size(); ++i)
  56         toReturn->currentLayoutRects().append(m_currentLayoutRects[i]);
  57     toReturn->setCompositingReasons(m_compositingReasons);
  58     toReturn->setOwnerNodeId(m_ownerNodeId);
  59     toReturn->m_invalidations = m_invalidations;
  60     return toReturn;
  61 }
  62
  63 void GraphicsLayerDebugInfo::appendLayoutRects(JSONObject* jsonObject) const
  64 {
  65     RefPtr<JSONArray> jsonArray = JSONArray::create();
  66     for (size_t i = 0; i < m_currentLayoutRects.size(); i++) {
  67         const LayoutRect& rect = m_currentLayoutRects[i];
  68         RefPtr<JSONObject> rectContainer = JSONObject::create();
  69         RefPtr<JSONArray> rectArray = JSONArray::create();
  70         rectArray->pushNumber(rect.x().toFloat());
  71         rectArray->pushNumber(rect.y().toFloat());
  72         rectArray->pushNumber(rect.maxX().toFloat());
  73         rectArray->pushNumber(rect.maxY().toFloat());
  74         rectContainer->setArray("geometry_rect", rectArray);
  75         jsonArray->pushObject(rectContainer);
  76     }
  77     jsonObject->setArray("layout_rects", jsonArray);
  78 }
  79
  80 void GraphicsLayerDebugInfo::appendCompositingReasons(JSONObject* jsonObject) const
  81 {
  82     RefPtr<JSONArray> jsonArray = JSONArray::create();
  83     for (size_t i = 0; i < kNumberOfCompositingReasons; ++i) {
  84         if (!(m_compositingReasons & kCompositingReasonStringMap[i].reason))
  85             continue;
  86         jsonArray->pushString(kCompositingReasonStringMap[i].description);
  87     }
  88     jsonObject->setArray("compositing_reasons", jsonArray);
  89 }
  90
  91 void GraphicsLayerDebugInfo::appendDebugName(JSONObject* jsonObject) const
  92 {
  93     if (m_debugName.isEmpty())
  94         return;
  95
  96     jsonObject->setString("layer_name", m_debugName);
  97 }
  98
  99 void GraphicsLayerDebugInfo::appendOwnerNodeId(JSONObject* jsonObject) const
 100 {
 101     if (!m_ownerNodeId)
 102         return;
 103
 104     jsonObject->setNumber("owner_node", m_ownerNodeId);
 105 }
 106
 107 void GraphicsLayerDebugInfo::appendAnnotatedInvalidateRect(const FloatRect& rect, WebInvalidationDebugAnnotations annotations)
 108 {
 109     WebAnnotatedInvalidationRect annotatedRect = {
 110         WebFloatRect(rect),
 111         annotations
 112     };
 113     m_invalidations.append(annotatedRect);
 114 }
 115
 116 void GraphicsLayerDebugInfo::clearAnnotatedInvalidateRects()
 117 {
 118     m_invalidations.clear();
 119 }
 120
 121 } // namespace blink