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/*
* 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
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "core/fileapi/FileReaderSync.h"
#include "bindings/core/v8/ExceptionState.h"
#include "core/dom/DOMArrayBuffer.h"
#include "core/dom/ExceptionCode.h"
#include "core/fileapi/Blob.h"
#include "core/fileapi/FileError.h"
#include "core/fileapi/FileReaderLoader.h"
#include "wtf/PassRefPtr.h"
namespace blink {
FileReaderSync::FileReaderSync()
{
}
PassRefPtr<DOMArrayBuffer> FileReaderSync::readAsArrayBuffer(ExecutionContext* executionContext, Blob* blob, ExceptionState& exceptionState)
{
if (!blob) {
exceptionState.throwDOMException(NotFoundError, FileError::notFoundErrorMessage);
return nullptr;
}
FileReaderLoader loader(FileReaderLoader::ReadAsArrayBuffer, 0);
startLoading(executionContext, loader, *blob, exceptionState);
return loader.arrayBufferResult();
}
String FileReaderSync::readAsBinaryString(ExecutionContext* executionContext, Blob* blob, ExceptionState& exceptionState)
{
if (!blob) {
exceptionState.throwDOMException(NotFoundError, FileError::notFoundErrorMessage);
return String();
}
FileReaderLoader loader(FileReaderLoader::ReadAsBinaryString, 0);
startLoading(executionContext, loader, *blob, exceptionState);
return loader.stringResult();
}
String FileReaderSync::readAsText(ExecutionContext* executionContext, Blob* blob, const String& encoding, ExceptionState& exceptionState)
{
if (!blob) {
exceptionState.throwDOMException(NotFoundError, FileError::notFoundErrorMessage);
return String();
}
FileReaderLoader loader(FileReaderLoader::ReadAsText, 0);
loader.setEncoding(encoding);
startLoading(executionContext, loader, *blob, exceptionState);
return loader.stringResult();
}
String FileReaderSync::readAsDataURL(ExecutionContext* executionContext, Blob* blob, ExceptionState& exceptionState)
{
if (!blob) {
exceptionState.throwDOMException(NotFoundError, FileError::notFoundErrorMessage);
return String();
}
FileReaderLoader loader(FileReaderLoader::ReadAsDataURL, 0);
loader.setDataType(blob->type());
startLoading(executionContext, loader, *blob, exceptionState);
return loader.stringResult();
}
void FileReaderSync::startLoading(ExecutionContext* executionContext, FileReaderLoader& loader, const Blob& blob, ExceptionState& exceptionState)
{
loader.start(executionContext, blob.blobDataHandle());
if (loader.errorCode())
FileError::throwDOMException(exceptionState, loader.errorCode());
}
} // namespace blink
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