public/platform/WebRTCVoidRequest.h

/*
 * Copyright (C) 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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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

#ifndef WebRTCVoidRequest_h
#define WebRTCVoidRequest_h

#include "WebCommon.h"
#include "WebNonCopyable.h"
#include "WebPrivatePtr.h"
#include "WebString.h"

namespace WebCore {
class RTCVoidRequest;
}

namespace blink {

class WebRTCVoidRequest {
public:
    class ExtraData {
    public:
        virtual ~ExtraData() { }
    };

    WebRTCVoidRequest() { }
    WebRTCVoidRequest(const WebRTCVoidRequest& other) { assign(other); }
    ~WebRTCVoidRequest() { reset(); }

    WebRTCVoidRequest& operator=(const WebRTCVoidRequest& other)
    {
        assign(other);
        return *this;
    }

    BLINK_PLATFORM_EXPORT void assign(const WebRTCVoidRequest&);

    BLINK_PLATFORM_EXPORT void reset();
    bool isNull() const { return m_private.isNull(); }

    BLINK_PLATFORM_EXPORT void requestSucceeded() const;
    BLINK_PLATFORM_EXPORT void requestFailed(const WebString& error) const;

    // Extra data associated with this object.
    // If non-null, the extra data pointer will be deleted when the object is destroyed.
    // Setting the extra data pointer will cause any existing non-null
    // extra data pointer to be deleted.
    BLINK_PLATFORM_EXPORT ExtraData* extraData() const;
    BLINK_PLATFORM_EXPORT void setExtraData(ExtraData*);

#if INSIDE_BLINK
    BLINK_PLATFORM_EXPORT WebRTCVoidRequest(const WTF::PassRefPtr<WebCore::RTCVoidRequest>&);
#endif

private:
    WebPrivatePtr<WebCore::RTCVoidRequest> m_private;
};

} // namespace blink

#endif // WebRTCVoidRequest_h