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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 WorkerAsyncFileWriterChromium_h
     32 #define WorkerAsyncFileWriterChromium_h
     33 
     34 #if ENABLE(FILE_SYSTEM)
     35 
     36 #include "AsyncFileWriter.h"
     37 #include <wtf/PassOwnPtr.h>
     38 
     39 namespace WebKit {
     40     class WebFileSystem;
     41     class WebFileWriter;
     42     class WorkerFileWriterCallbacksBridge;
     43 }
     44 
     45 namespace WTF {
     46     class String;
     47 }
     48 using WTF::String;
     49 
     50 namespace WebCore {
     51 
     52 class AsyncFileSystem;
     53 class AsyncFileWriterClient;
     54 class Blob;
     55 class WorkerContext;
     56 
     57 class WorkerAsyncFileWriterChromium : public AsyncFileWriter {
     58 public:
     59     enum WriterType {
     60         Asynchronous,
     61         Synchronous,
     62     };
     63 
     64     static PassOwnPtr<WorkerAsyncFileWriterChromium> create(WebKit::WebFileSystem* webFileSystem, const String& path, WorkerContext* workerContext, AsyncFileWriterClient* client, WriterType type)
     65     {
     66         return adoptPtr(new WorkerAsyncFileWriterChromium(webFileSystem, path, workerContext, client, type));
     67     }
     68     ~WorkerAsyncFileWriterChromium();
     69 
     70     bool waitForOperationToComplete();
     71 
     72     // FileWriter
     73     virtual void write(long long position, Blob* data);
     74     virtual void truncate(long long length);
     75     virtual void abort();
     76 
     77 private:
     78 
     79     WorkerAsyncFileWriterChromium(WebKit::WebFileSystem*, const String& path, WorkerContext*, AsyncFileWriterClient*, WriterType);
     80     RefPtr<WebKit::WorkerFileWriterCallbacksBridge> m_bridge;
     81     WriterType m_type;
     82 };
     83 
     84 } // namespace
     85 
     86 #endif // ENABLE(FILE_SYSTEM)
     87 
     88 #endif // AsyncFileWriterChromium_h
     89