/*

 * 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

 * copyright notice, this list of conditions and the following disclaimer

 * in the documentation and/or other materials provided with the

 * distribution.

 *     * Neither the name of Google Inc. nor the names of its

 * contributors may be used to endorse or promote products derived from

 * this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef WebStorageAreaImpl_h

#define WebStorageAreaImpl_h

#if ENABLE(DOM_STORAGE)

#include "StorageAreaImpl.h"

#include "WebStorageArea.h"

namespace WebKit {

class WebStorageAreaImpl : public WebStorageArea {

public:

    WebStorageAreaImpl(PassRefPtr<WebCore::StorageArea> storageArea);

    virtual ~WebStorageAreaImpl();

    virtual unsigned length();

    virtual WebString key(unsigned index);

    virtual WebString getItem(const WebString& key);

    virtual void setItem(const WebString& key, const WebString& value, const WebURL& url, Result& result, WebString& oldValue, WebFrame*);

    virtual void removeItem(const WebString& key, const WebURL& url, WebString& oldValue);

    virtual void clear(const WebURL& url, bool& somethingCleared);

    // For storage events in single-process mode and test shell.

    static const WebURL* currentStorageEventURL() { return storageEventURL; }

private:

    class ScopedStorageEventURL {

    public:

        ScopedStorageEventURL(const WebURL& url)

        {

            // FIXME: Once storage events are fired async in WebKit (as they should

            //        be) this can be ASSERTed to be 0 rather than saved.

            m_existingStorageEventURL = storageEventURL;

            storageEventURL = &url;

        }

        ~ScopedStorageEventURL()

        {

            storageEventURL = m_existingStorageEventURL;

        }

    private:

        const WebURL* m_existingStorageEventURL;

    };

    static const WebURL* storageEventURL;

    RefPtr<WebCore::StorageArea> m_storageArea;

};

} // namespace WebKit

#endif // ENABLE(DOM_STORAGE)

#endif // WebStorageAreaImpl_h