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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.
*/
#ifndef BlobData_h
#define BlobData_h
#include "BlobDataFileReference.h"
#include "ThreadSafeDataBuffer.h"
#include "URL.h"
#include <wtf/Forward.h>
#include <wtf/RefCounted.h>
#include <wtf/ThreadSafeRefCounted.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class BlobDataItem {
public:
WEBCORE_EXPORT static const long long toEndOfFile;
enum class Type {
Data,
File
};
Type type() const { return m_type; }
// For Data type.
const ThreadSafeDataBuffer& data() const { return m_data; }
// For File type.
BlobDataFileReference* file() const { return m_file.get(); }
long long offset() const { return m_offset; }
long long length() const; // Computes file length if it's not known yet.
private:
friend class BlobData;
explicit BlobDataItem(PassRefPtr<BlobDataFileReference> file)
: m_type(Type::File)
, m_file(file)
, m_offset(0)
, m_length(toEndOfFile)
{
}
BlobDataItem(ThreadSafeDataBuffer data, long long offset, long long length)
: m_type(Type::Data)
, m_data(data)
, m_offset(offset)
, m_length(length)
{
}
BlobDataItem(BlobDataFileReference* file, long long offset, long long length)
: m_type(Type::File)
, m_file(file)
, m_offset(offset)
, m_length(length)
{
}
Type m_type;
ThreadSafeDataBuffer m_data;
RefPtr<BlobDataFileReference> m_file;
long long m_offset;
long long m_length;
};
typedef Vector<BlobDataItem> BlobDataItemList;
class BlobData : public ThreadSafeRefCounted<BlobData> {
public:
static Ref<BlobData> create(const String& contentType)
{
return adoptRef(*new BlobData(contentType));
}
const String& contentType() const { return m_contentType; }
const BlobDataItemList& items() const { return m_items; }
void swapItems(BlobDataItemList&);
void appendData(const ThreadSafeDataBuffer&);
void appendFile(PassRefPtr<BlobDataFileReference>);
private:
friend class BlobRegistryImpl;
BlobData(const String& contentType);
void appendData(const ThreadSafeDataBuffer&, long long offset, long long length);
void appendFile(BlobDataFileReference*, long long offset, long long length);
String m_contentType;
BlobDataItemList m_items;
};
} // namespace WebCore
#endif // BlobData_h
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