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      1 /*
      2  * Copyright (C) 2010 Google Inc.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef FileWriterSync_h
     32 #define FileWriterSync_h
     33 
     34 #include "bindings/v8/ScriptWrappable.h"
     35 #include "core/fileapi/FileError.h"
     36 #include "modules/filesystem/AsyncFileWriterClient.h"
     37 #include "modules/filesystem/FileWriterBase.h"
     38 #include "wtf/PassRefPtr.h"
     39 
     40 namespace WebCore {
     41 
     42 class Blob;
     43 class ExceptionState;
     44 
     45 class FileWriterSync : public ScriptWrappable, public FileWriterBase, public AsyncFileWriterClient {
     46 public:
     47     static PassRefPtr<FileWriterSync> create()
     48     {
     49         return adoptRef(new FileWriterSync());
     50     }
     51     virtual ~FileWriterSync();
     52 
     53     // FileWriterBase
     54     void write(Blob*, ExceptionState&);
     55     void seek(long long position, ExceptionState&);
     56     void truncate(long long length, ExceptionState&);
     57 
     58     // AsyncFileWriterClient, via FileWriterBase
     59     void didWrite(long long bytes, bool complete);
     60     void didTruncate();
     61     void didFail(FileError::ErrorCode);
     62 
     63 private:
     64     FileWriterSync();
     65     void prepareForWrite();
     66 
     67     FileError::ErrorCode m_error;
     68 #ifndef NDEBUG
     69     bool m_complete;
     70 #endif
     71 };
     72 
     73 } // namespace WebCore
     74 
     75 #endif // FileWriter_h
     76