/*
 * Copyright (C) 2011, 2012 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
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

#ifndef WebSocketImpl_h
#define WebSocketImpl_h

#include "modules/websockets/WebSocketChannelClient.h"
#include "platform/heap/Handle.h"
#include "public/platform/WebCommon.h"
#include "public/platform/WebString.h"
#include "public/web/WebSocket.h"
#include "public/web/WebSocketClient.h"
#include "wtf/OwnPtr.h"
#include "wtf/RefPtr.h"

namespace blink {

class WebDocument;
class WebSocketChannel;
class WebSocketChannelClientProxy;
class WebURL;

class WebSocketImpl FINAL : public WebSocket {
public:
    WebSocketImpl(const WebDocument&, WebSocketClient*);
    virtual ~WebSocketImpl();

    bool isNull() const { return !m_private; }

    virtual BinaryType binaryType() const OVERRIDE;
    virtual bool setBinaryType(BinaryType) OVERRIDE;
    virtual void connect(const WebURL&, const WebString& protocol) OVERRIDE;
    virtual WebString subprotocol() OVERRIDE;
    virtual WebString extensions() OVERRIDE;
    virtual bool sendText(const WebString&) OVERRIDE;
    virtual bool sendArrayBuffer(const WebArrayBuffer&) OVERRIDE;
    virtual unsigned long bufferedAmount() const OVERRIDE;
    virtual void close(int code, const WebString& reason) OVERRIDE;
    virtual void fail(const WebString& reason) OVERRIDE;
    virtual void disconnect() OVERRIDE;

    // WebSocketChannelClient methods proxied by WebSocketChannelClientProxy.
    void didConnect(const String& subprotocol, const String& extensions);
    void didReceiveMessage(const String& message);
    void didReceiveBinaryData(PassOwnPtr<Vector<char> > binaryData);
    void didReceiveMessageError();
    void didConsumeBufferedAmount(unsigned long consumed);
    void didStartClosingHandshake();
    void didClose(WebSocketChannelClient::ClosingHandshakeCompletionStatus, unsigned short code, const String& reason);

private:
    Persistent<WebSocketChannel> m_private;
    WebSocketClient* m_client;
    Persistent<WebSocketChannelClientProxy> m_channelProxy;
    BinaryType m_binaryType;
    WebString m_subprotocol;
    WebString m_extensions;
    bool m_isClosingOrClosed;
    // m_bufferedAmount includes m_bufferedAmountAfterClose.
    unsigned long m_bufferedAmount;
    unsigned long m_bufferedAmountAfterClose;
};

} // namespace blink

#endif // WebWebSocketChannelImpl_h
