/*

 *  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