1 files changed, 99 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/platform/graphics/GraphicsLayerDebugInfo.cpp b/chromium/third_party/WebKit/Source/platform/graphics/GraphicsLayerDebugInfo.cpp
new file mode 100644
index 00000000000..93cd1d05d04
--- /dev/null
+++ b/chromium/third_party/WebKit/Source/platform/graphics/GraphicsLayerDebugInfo.cpp
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2014 Google Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+
+#include "platform/graphics/GraphicsLayerDebugInfo.h"
+
+#include "wtf/text/CString.h"
+
+namespace WebCore {
+
+GraphicsLayerDebugInfo::GraphicsLayerDebugInfo()
+    : m_compositingReasons(CompositingReasonNone)
+{
+}
+
+GraphicsLayerDebugInfo::~GraphicsLayerDebugInfo() { }
+
+void GraphicsLayerDebugInfo::appendAsTraceFormat(blink::WebString* out) const
+{
+    RefPtr<JSONObject> jsonObject = JSONObject::create();
+    appendLayoutRects(jsonObject.get());
+    appendCompositingReasons(jsonObject.get());
+    appendDebugName(jsonObject.get());
+    appendOwnerNodeId(jsonObject.get());
+    *out = jsonObject->toJSONString();
+}
+
+GraphicsLayerDebugInfo* GraphicsLayerDebugInfo::clone() const
+{
+    GraphicsLayerDebugInfo* toReturn = new GraphicsLayerDebugInfo();
+    for (size_t i = 0; i < m_currentLayoutRects.size(); ++i)
+        toReturn->currentLayoutRects().append(m_currentLayoutRects[i]);
+    toReturn->setCompositingReasons(m_compositingReasons);
+    toReturn->setOwnerNodeId(m_ownerNodeId);
+    return toReturn;
+}
+
+void GraphicsLayerDebugInfo::appendLayoutRects(JSONObject* jsonObject) const
+{
+    RefPtr<JSONArray> jsonArray = JSONArray::create();
+    for (size_t i = 0; i < m_currentLayoutRects.size(); i++) {
+        const LayoutRect& rect = m_currentLayoutRects[i];
+        RefPtr<JSONObject> rectContainer = JSONObject::create();
+        RefPtr<JSONArray> rectArray = JSONArray::create();
+        rectArray->pushNumber(rect.x().toFloat());
+        rectArray->pushNumber(rect.y().toFloat());
+        rectArray->pushNumber(rect.maxX().toFloat());
+        rectArray->pushNumber(rect.maxY().toFloat());
+        rectContainer->setArray("geometry_rect", rectArray);
+        jsonArray->pushObject(rectContainer);
+    }
+    jsonObject->setArray("layout_rects", jsonArray);
+}
+
+void GraphicsLayerDebugInfo::appendCompositingReasons(JSONObject* jsonObject) const
+{
+    RefPtr<JSONArray> jsonArray = JSONArray::create();
+    for (size_t i = 0; i < WTF_ARRAY_LENGTH(compositingReasonStringMap); ++i) {
+        if (!(m_compositingReasons & compositingReasonStringMap[i].reason))
+            continue;
+        jsonArray->pushString(compositingReasonStringMap[i].description);
+    }
+    jsonObject->setArray("compositing_reasons", jsonArray);
+}
+
+void GraphicsLayerDebugInfo::appendDebugName(JSONObject* jsonObject) const
+{
+    if (m_debugName.isEmpty())
+        return;
+
+    jsonObject->setString("layer_name", m_debugName);
+}
+
+void GraphicsLayerDebugInfo::appendOwnerNodeId(JSONObject* jsonObject) const
+{
+    if (!m_ownerNodeId)
+        return;
+
+    jsonObject->setNumber("owner_node", m_ownerNodeId);
+}
+
+} // namespace WebCore