/*

 * Copyright (C) 2009 Google Inc. All rights reserved.

 *

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 * 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.

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 * 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

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 */

#ifndef SharedWorkerRepository_h

#define SharedWorkerRepository_h

#if ENABLE(SHARED_WORKERS)

#include "ExceptionCode.h"

#include <wtf/PassOwnPtr.h>

#include <wtf/PassRefPtr.h>

namespace WebCore {

    class Document;

    class KURL;

    class MessagePortChannel;

    class SharedWorker;

    class String;

    // Interface to a repository which manages references to the set of active shared workers.

    class SharedWorkerRepository {

    public:

        // Returns true if the platform supports SharedWorkers, otherwise false.

        static bool isAvailable();

        // Connects the passed SharedWorker object with the specified worker thread, creating a new thread if necessary.

        static void connect(PassRefPtr<SharedWorker>, PassOwnPtr<MessagePortChannel>, const KURL&, const String& name, ExceptionCode&);

        // Invoked when a document has been detached.

        static void documentDetached(Document*);

        // Returns true if the passed document is associated with any SharedWorkers.

        static bool hasSharedWorkers(Document*);

    private:

        SharedWorkerRepository() { }

    };

} // namespace WebCore

#endif // ENABLE(SHARED_WORKERS)

#endif // SharedWorkerRepository_h