diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/gobject/WebKitDOMBinding.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/gobject/WebKitDOMBinding.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,149 @@
+/*
+ *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
+ *  Copyright (C) 2007 Samuel Weinig <sam@webkit.org>
+ *  Copyright (C) 2008 Luke Kenneth Casson Leighton <lkcl@lkcl.net>
+ *  Copyright (C) 2008 Martin Soto <soto@freedesktop.org>
+ *  Copyright (C) 2009, 2010 Igalia S.L.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser 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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "config.h"
+#include "WebKitDOMBinding.h"
+
+#include "Event.h"
+#include "EventException.h"
+#include "HTMLNames.h"
+#include "WebKitDOMDOMWindowPrivate.h"
+#include "WebKitDOMElementPrivate.h"
+#include "WebKitDOMNode.h"
+#include "WebKitDOMNodePrivate.h"
+#include "WebKitHTMLElementWrapperFactory.h"
+
+namespace WebKit {
+
+using namespace WebCore;
+using namespace WebCore::HTMLNames;
+
+// DOMObjectCache
+
+typedef HashMap<void*, gpointer> DOMObjectMap;
+
+static DOMObjectMap& domObjects()
+{
+    static DOMObjectMap staticDOMObjects;
+    return staticDOMObjects;
+}
+
+gpointer DOMObjectCache::get(void* objectHandle)
+{
+    return domObjects().get(objectHandle);
+}
+
+gpointer DOMObjectCache::put(void* objectHandle, gpointer wrapper)
+{
+    domObjects().set(objectHandle, wrapper);
+    return wrapper;
+}
+
+void DOMObjectCache::forget(void* objectHandle)
+{
+    domObjects().take(objectHandle);
+}
+
+// kit methods
+
+static gpointer createWrapper(Node* node)
+{
+    ASSERT(node);
+    ASSERT(node->nodeType());
+
+    gpointer wrappedNode = 0;
+
+    switch (node->nodeType()) {
+    case Node::ELEMENT_NODE:
+        if (node->isHTMLElement())
+            wrappedNode = createHTMLElementWrapper(static_cast<HTMLElement*>(node));
+        else
+            wrappedNode = wrapNode(node);
+        break;
+    default:
+        wrappedNode = wrapNode(node);
+        break;
+    }
+
+    return DOMObjectCache::put(node, wrappedNode);
+}
+
+gpointer kit(Node* node)
+{
+    if (!node)
+        return 0;
+
+    gpointer kitNode = DOMObjectCache::get(node);
+    if (kitNode)
+        return kitNode;
+
+    return createWrapper(node);
+}
+
+gpointer kit(Element* element)
+{
+    if (!element)
+        return 0;
+
+    gpointer kitElement = DOMObjectCache::get(element);
+    if (kitElement)
+        return kitElement;
+
+    gpointer wrappedElement;
+
+    if (element->isHTMLElement())
+        wrappedElement = createHTMLElementWrapper(static_cast<HTMLElement*>(element));
+    else
+        wrappedElement = wrapElement(element);
+
+    return DOMObjectCache::put(element, wrappedElement);
+}
+
+static gpointer wrapEventTarget(EventTarget* target)
+{
+    ASSERT(target);
+
+    gpointer wrappedTarget = 0;
+
+    if (target->toNode()) {
+        Node* node = target->toNode();
+        wrappedTarget = wrapNode(node);
+    } else if (target->toDOMWindow()) {
+        DOMWindow* window = target->toDOMWindow();
+        wrappedTarget = wrapDOMWindow(window);
+    }
+
+    return DOMObjectCache::put(target, wrappedTarget);
+}
+
+gpointer kit(WebCore::EventTarget* obj)
+{
+    g_return_val_if_fail(obj, 0);
+
+    if (gpointer ret = DOMObjectCache::get(obj))
+        return ret;
+
+    return DOMObjectCache::put(obj, WebKit::wrapEventTarget(obj));
+}
+
+} // namespace WebKit