Source/web/AsyncFileWriterChromium.h

/*
 * Copyright (C) 2010 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 AsyncFileWriterChromium_h
#define AsyncFileWriterChromium_h

#include "WebFileWriterClient.h"
#include "modules/filesystem/AsyncFileWriter.h"
#include "public/platform/WebFileError.h"
#include "wtf/PassOwnPtr.h"

namespace WebKit {
class WebFileWriter;
}

namespace WebCore {

class Blob;
class AsyncFileWriterClient;

class AsyncFileWriterChromium : public AsyncFileWriter, public WebKit::WebFileWriterClient {
public:
    AsyncFileWriterChromium(AsyncFileWriterClient* client);
    ~AsyncFileWriterChromium();
    
    void setWebFileWriter(PassOwnPtr<WebKit::WebFileWriter> writer);

    // FileWriter
    virtual void write(long long position, Blob* data);
    virtual void truncate(long long length);
    virtual void abort();

    // WebFileWriterClient
    virtual void didWrite(long long bytes, bool complete);
    virtual void didTruncate();
    virtual void didFail(WebKit::WebFileError);

private:
    OwnPtr<WebKit::WebFileWriter> m_writer;
    AsyncFileWriterClient* m_client;
};

} // namespace

#endif // AsyncFileWriterChromium_h