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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 FileReaderSync_h
     32 #define FileReaderSync_h
     33 
     34 #if ENABLE(BLOB)
     35 
     36 #include "ExceptionCode.h"
     37 #include <wtf/Forward.h>
     38 #include <wtf/RefCounted.h>
     39 #include <wtf/text/WTFString.h>
     40 
     41 namespace WebCore {
     42 
     43 class ArrayBuffer;
     44 class Blob;
     45 class FileReaderLoader;
     46 class ScriptExecutionContext;
     47 
     48 class FileReaderSync : public RefCounted<FileReaderSync> {
     49 public:
     50     static PassRefPtr<FileReaderSync> create()
     51     {
     52         return adoptRef(new FileReaderSync());
     53     }
     54 
     55     virtual ~FileReaderSync() { }
     56 
     57     PassRefPtr<ArrayBuffer> readAsArrayBuffer(ScriptExecutionContext*, Blob*, ExceptionCode&);
     58     String readAsBinaryString(ScriptExecutionContext*, Blob*, ExceptionCode&);
     59     String readAsText(ScriptExecutionContext* scriptExecutionContext, Blob* blob, ExceptionCode& ec)
     60     {
     61         return readAsText(scriptExecutionContext, blob, "", ec);
     62     }
     63     String readAsText(ScriptExecutionContext*, Blob*, const String& encoding, ExceptionCode&);
     64     String readAsDataURL(ScriptExecutionContext*, Blob*, ExceptionCode&);
     65 
     66 private:
     67     FileReaderSync();
     68 
     69     void startLoading(ScriptExecutionContext*, FileReaderLoader&, Blob*, ExceptionCode&);
     70 };
     71 
     72 } // namespace WebCore
     73 
     74 #endif // ENABLE(BLOB)
     75 
     76 #endif // FileReaderSync_h
     77