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-rw-r--r--WebCore/platform/BlobItem.h209
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diff --git a/WebCore/platform/BlobItem.h b/WebCore/platform/BlobItem.h
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--- a/WebCore/platform/BlobItem.h
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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 BlobItem_h
-#define BlobItem_h
-
-#include "PlatformString.h"
-#include <wtf/OwnPtr.h>
-#include <wtf/PassRefPtr.h>
-#include <wtf/RefCounted.h>
-#include <wtf/Vector.h>
-#include <wtf/text/CString.h>
-
-namespace WebCore {
-
-class ByteArrayBlobItem;
-class DataBlobItem;
-class DataRangeBlobItem;
-class FileBlobItem;
-class FileRangeBlobItem;
-class StringBlobItem;
-
-// A base interface for all arbitrary-data-object component items.
-// The BlobItem and its subclasses are structured like the following:
-// BlobItem
-// |
-// +-------> DataBlobItem
-// | |
-// | +---------> StringBlobItem
-// | +---------> ByteArrayBlobItem
-// | +---------> DataRangeBlobItem
-// |
-// +-------> FileBlobItem
-// |
-// +---------> FileRangeBlobItem
-//
-class BlobItem : public RefCounted<BlobItem> {
-public:
- virtual ~BlobItem() { }
- virtual unsigned long long size() const = 0;
-
- virtual const DataBlobItem* toDataBlobItem() const { return 0; }
- virtual const StringBlobItem* toStringBlobItem() const { return 0; }
- virtual const ByteArrayBlobItem* toByteArrayBlobItem() const { return 0; }
- virtual const FileBlobItem* toFileBlobItem() const { return 0; }
-#if ENABLE(BLOB)
- virtual const DataRangeBlobItem* toDataRangeBlobItem() const { return 0; }
- virtual const FileRangeBlobItem* toFileRangeBlobItem() const { return 0; }
-
- // Note: no external methods except for Blob::slice should call this.
- virtual PassRefPtr<BlobItem> slice(long long start, long long length) = 0;
-#endif // ENABLE(BLOB)
-
-protected:
- BlobItem() { }
-};
-
-typedef Vector<RefPtr<BlobItem> > BlobItemList;
-
-class DataBlobItem : public BlobItem {
-public:
- virtual const char* data() const = 0;
-
- // BlobItem methods.
- virtual const DataBlobItem* toDataBlobItem() const { return this; }
-#if ENABLE(BLOB)
- virtual PassRefPtr<BlobItem> slice(long long start, long long length);
-#endif // ENABLE(BLOB)
-};
-
-class FileBlobItem : public BlobItem {
-public:
- static PassRefPtr<BlobItem> create(const String& path);
-#if ENABLE(DIRECTORY_UPLOAD)
- static PassRefPtr<BlobItem> create(const String& path, const String& relativePath);
-#endif
- virtual const String& name() const { return m_fileName; }
- virtual const String& path() const { return m_path; }
-#if ENABLE(DIRECTORY_UPLOAD)
- const String& relativePath() const { return m_relativePath; }
-#endif
-
- // BlobItem methods.
- virtual unsigned long long size() const;
- virtual const FileBlobItem* toFileBlobItem() const { return this; }
-#if ENABLE(BLOB)
- virtual PassRefPtr<BlobItem> slice(long long start, long long length);
-#endif // ENABLE(BLOB)
-
-protected:
- FileBlobItem(const String& path);
-#if ENABLE(DIRECTORY_UPLOAD)
- FileBlobItem(const String& path, const String& relativePath);
-#endif
- String m_path;
- String m_fileName;
-#if ENABLE(DIRECTORY_UPLOAD)
- String m_relativePath;
-#endif
-};
-
-class StringBlobItem : public DataBlobItem {
-public:
- static PassRefPtr<BlobItem> create(const CString&);
- const CString& cstr() const { return m_data; }
-
- // BlobItem methods.
- virtual unsigned long long size() const { return m_data.length(); }
- virtual const StringBlobItem* toStringBlobItem() const { return this; }
-
- // DataBlobItem methods.
- virtual const char* data() const { return m_data.data(); }
-
-private:
- StringBlobItem(const CString&);
- CString m_data;
-};
-
-class ByteArrayBlobItem : public DataBlobItem {
-public:
- static PassRefPtr<BlobItem> create(const char* data, size_t size);
-
- // BlobItem methods.
- virtual unsigned long long size() const { return m_bytesArray.size(); }
- virtual const ByteArrayBlobItem* toByteArrayBlobItem() const { return this; }
-
- // DataBlobItem methods.
- virtual const char* data() const { return m_bytesArray.data(); }
-
-private:
- ByteArrayBlobItem(const char* data, size_t size);
- Vector<char> m_bytesArray;
-};
-
-#if ENABLE(BLOB)
-
-// BlobItem class for sliced data (string or bytes-array).
-class DataRangeBlobItem : public DataBlobItem {
-public:
- static PassRefPtr<BlobItem> create(PassRefPtr<DataBlobItem>, long long start, long long length);
-
- // BlobItem methods.
- virtual unsigned long long size() const { return m_length; }
- virtual const DataRangeBlobItem* toDataRangeBlobItem() const { return this; }
-
- // DataBlobItem methods.
- virtual const char* data() const;
-
-private:
- DataRangeBlobItem(PassRefPtr<DataBlobItem>, long long start, long long length);
- RefPtr<DataBlobItem> m_item;
- long long m_start;
- long long m_length;
-};
-
-class FileRangeBlobItem : public FileBlobItem {
-public:
- static PassRefPtr<BlobItem> create(const String& path, long long start, long long length, double snapshotModificationTime);
- long long start() const { return m_start; }
- double snapshotModificationTime() const { return m_snapshotModificationTime; }
-
- // BlobItem methods.
- virtual unsigned long long size() const { return m_length; }
- virtual const FileRangeBlobItem* toFileRangeBlobItem() const { return this; }
-
- // FileBlobItem methods.
- virtual const String& name() const { return m_uniqueName; }
-
-private:
- FileRangeBlobItem(const String& path, long long start, long long length, double snapshotModificationTime);
- long long m_start;
- long long m_length;
- String m_uniqueName;
-
- double m_snapshotModificationTime;
-};
-
-#endif // ENABLE(BLOB)
-
-} // namespace WebCore
-
-#endif // BlobItem_h
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