/*

 * 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

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

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

 */

#ifndef WebWorkerImpl_h

#define WebWorkerImpl_h

#include "WebWorker.h"

#if ENABLE(WORKERS)

#include "ScriptExecutionContext.h"

#include "WebWorkerBase.h"

namespace WebKit {

class WebView;

// This class is used by the worker process code to talk to the WebCore::Worker

// implementation.  It can't use it directly since it uses WebKit types, so this

// class converts the data types.  When the WebCore::Worker object wants to call

// WebCore::WorkerObjectProxy, this class will conver to Chrome data types first

// and then call the supplied WebWorkerClient.

class WebWorkerImpl : public WebWorkerBase, public WebWorker {

public:

    explicit WebWorkerImpl(WebWorkerClient* client);

    // WebWorker methods:

    virtual void startWorkerContext(const WebURL&, const WebString&, const WebString&);

    virtual void terminateWorkerContext();

    virtual void postMessageToWorkerContext(const WebString&, const WebMessagePortChannelArray&);

    virtual void workerObjectDestroyed();

    virtual void clientDestroyed();

    // WebWorkerBase methods:

    virtual WebWorkerClient* client() { return m_client; }

    virtual WebCommonWorkerClient* commonClient();

private:

    virtual ~WebWorkerImpl();

    // Tasks that are run on the worker thread.

    static void postMessageToWorkerContextTask(

        WebCore::ScriptExecutionContext* context,

        WebWorkerImpl* thisPtr,

        const WebCore::String& message,

        PassOwnPtr<WebCore::MessagePortChannelArray> channels);

    WebWorkerClient* m_client;

};

} // namespace WebKit

#endif // ENABLE(WORKERS)

#endif