WebKit/chromium/public/WebMessagePortChannel.h

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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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
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#ifndef WebMessagePortChannel_h
#define WebMessagePortChannel_h

#include "WebCommon.h"
#include "WebVector.h"

namespace WebKit {

class WebMessagePortChannelClient;
class WebString;

typedef WebVector<class WebMessagePortChannel*> WebMessagePortChannelArray;

// Provides an interface to a Message Port Channel implementation.  The object owns itself and
// is signalled that its not needed anymore with the destroy() call.
class WebMessagePortChannel {
public:
    virtual void setClient(WebMessagePortChannelClient*) = 0;
    virtual void destroy() = 0;
    // WebKit versions of WebCore::MessagePortChannel.
    virtual void entangle(WebMessagePortChannel*) = 0;
    // Callee receives ownership of the passed vector.
    virtual void postMessage(const WebString&, WebMessagePortChannelArray*) = 0;
    virtual bool tryGetMessage(WebString*, WebMessagePortChannelArray&) = 0;

protected:
    ~WebMessagePortChannel() { }
};

} // namespace WebKit

#endif