Source/WebKit/chromium/public/WebFileWriterClient.h

/*
 * Copyright (C) 2010 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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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
 *
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#ifndef WebFileWriterClient_h
#define WebFileWriterClient_h

#include "WebCommon.h"
#include "WebFileError.h"

namespace WebKit {

class WebFileWriterClient {
public:
    // Called for each chunk of a write, to indicate progress.
    // On the final chunk, when the write is finished, complete will be true.
    virtual void didWrite(long long bytes, bool complete) = 0;

    // Called once when the truncate completes successfully.
    virtual void didTruncate() = 0;

    // Called if the write or truncate fails, or if it is cancelled before the write or truncate completes.  Completion of an operation will be signalled exactly once, either by didFail, didTruncate, or didWrite(..., true).
    virtual void didFail(WebFileError) = 0;

protected:
    virtual ~WebFileWriterClient() { }
};

} // namespace WebKit

#endif