Adds WebElement::imageContents()

Source/web/WebNode.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 31 matching lines @@
 #include "WebPluginContainer.h"
 #include "WebPluginContainerImpl.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/dom/Event.h"
 #include "core/dom/Node.h"
 #include "core/dom/NodeList.h"
 #include "core/editing/markup.h"
 #include "core/page/Frame.h"
 #include "core/platform/Widget.h"
+#include "core/rendering/RenderImage.h"
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/RenderWidget.h"
 #include "public/platform/WebString.h"
 #include "public/platform/WebVector.h"
 
 using namespace WebCore;
 
 namespace WebKit {
 
 void WebNode::reset()
@@ skipping 182 matching lines @@
 }
 
 WebElement WebNode::shadowHost() const
 {
     if (isNull())
         return WebElement();
     const Node* coreNode = constUnwrap<Node>();
     return WebElement(coreNode->shadowHost());
 }
 
+WebImage WebNode::imageContents()
+{
+    if (isNull() || !m_private->isElementNode())
+        return WebImage();
+
+    RefPtr<Element> element = unwrap<Element>();

[darin (slow to review), 2013/07/30 05:02:41]

nit: perhaps we should have just put this method on WebElement then?  sorry for
not thinking to suggest this earlier :-/

+
+    WebCore::Image* image = element->imageContents();
+    if (!image)
+        return WebImage();
+
+    RefPtr<NativeImageSkia> bitmap = image->nativeImageForCurrentFrame();
+    if (!bitmap)
+        return WebImage();
+
+    return bitmap->bitmap();
+}
+
 WebNode::WebNode(const PassRefPtr<Node>& node)
     : m_private(node)
 {
 }
 
 WebNode& WebNode::operator=(const PassRefPtr<Node>& node)
 {
     m_private = node;
     return *this;
 }
 
 WebNode::operator PassRefPtr<Node>() const
 {
     return m_private.get();
 }
 
 } // namespace WebKit