blob: dc55bb871acdac578baf2c6c56e9f24e302de1bb [file] [log] [blame]
/*
* 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"
#if ENABLE(FILE_SYSTEM)
#include "FileWriterBase.h"
#include "AsyncFileWriter.h"
#include "Blob.h"
#include "ExceptionCode.h"
#include "FileError.h"
#include "FileException.h"
#include "ProgressEvent.h"
namespace WebCore {
FileWriterBase::~FileWriterBase()
{
}
void FileWriterBase::initialize(PassOwnPtr<AsyncFileWriter> writer, long long length)
{
ASSERT(!m_writer);
ASSERT(length >= 0);
m_writer = writer;
m_length = length;
}
FileWriterBase::FileWriterBase()
: m_position(0)
{
}
void FileWriterBase::seekInternal(long long position)
{
if (position > m_length)
position = m_length;
else if (position < 0)
position = m_length + position;
if (position < 0)
position = 0;
m_position = position;
}
} // namespace WebCore
#endif // ENABLE(FILE_SYSTEM)