/*
* 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.
*/
#ifndef FileWriterBase_h
#define FileWriterBase_h
#include "heap/Handle.h"
#include "wtf/OwnPtr.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/RefCounted.h"
namespace blink { class WebFileWriter; }
namespace WebCore {
class FileWriterBase : public RefCountedWillBeRefCountedGarbageCollected<FileWriterBase> {
public:
virtual ~FileWriterBase();
void initialize(PassOwnPtr<blink::WebFileWriter>, long long length);
long long position() const
{
return m_position;
}
long long length() const
{
return m_length;
}
virtual void trace(Visitor*) { }
protected:
FileWriterBase();
blink::WebFileWriter* writer()
{
return m_writer.get();
}
void setPosition(long long position)
{
m_position = position;
}
void setLength(long long length)
{
m_length = length;
}
void seekInternal(long long position);
private:
friend class WTF::RefCounted<FileWriterBase>;
OwnPtr<blink::WebFileWriter> m_writer;
long long m_position;
long long m_length;
};
} // namespace WebCore
#endif // FileWriterBase_h