1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef Blob_h 32 #define Blob_h 33 34 #include "BlobData.h" 35 #include "KURL.h" 36 #include "PlatformString.h" 37 #include <wtf/PassOwnPtr.h> 38 #include <wtf/PassRefPtr.h> 39 #include <wtf/RefCounted.h> 40 #include <wtf/Vector.h> 41 42 namespace WebCore { 43 44 class Blob : public RefCounted<Blob> { 45 public: create(PassOwnPtr<BlobData> blobData,long long size)46 static PassRefPtr<Blob> create(PassOwnPtr<BlobData> blobData, long long size) 47 { 48 return adoptRef(new Blob(blobData, size)); 49 } 50 51 // For deserialization. create(const KURL & srcURL,const String & type,long long size)52 static PassRefPtr<Blob> create(const KURL& srcURL, const String& type, long long size) 53 { 54 return adoptRef(new Blob(srcURL, type, size)); 55 } 56 57 virtual ~Blob(); 58 url()59 const KURL& url() const { return m_internalURL; } type()60 const String& type() const { return m_type; } 61 size()62 virtual unsigned long long size() const { return static_cast<unsigned long long>(m_size); } isFile()63 virtual bool isFile() const { return false; } 64 65 #if ENABLE(BLOB) 66 PassRefPtr<Blob> webkitSlice(long long start, long long end = std::numeric_limits<long long>::max(), const String& contentType = String()) const; 67 #endif 68 69 protected: 70 Blob(PassOwnPtr<BlobData>, long long size); 71 72 // For deserialization. 73 Blob(const KURL& srcURL, const String& type, long long size); 74 75 // This is an internal URL referring to the blob data associated with this object. It serves 76 // as an identifier for this blob. The internal URL is never used to source the blob's content 77 // into an HTML or for FileRead'ing, public blob URLs must be used for those purposes. 78 KURL m_internalURL; 79 80 String m_type; 81 long long m_size; 82 }; 83 84 } // namespace WebCore 85 86 #endif // Blob_h 87