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 "bindings/v8/ScriptWrappable.h" 35 #include "core/html/URLRegistry.h" 36 #include "core/platform/network/BlobData.h" 37 #include "weborigin/KURL.h" 38 #include "wtf/PassOwnPtr.h" 39 #include "wtf/PassRefPtr.h" 40 #include "wtf/RefCounted.h" 41 #include "wtf/text/WTFString.h" 42 43 namespace WebCore { 44 45 class ScriptExecutionContext; 46 47 class Blob : public ScriptWrappable, public URLRegistrable, public RefCounted<Blob> { 48 public: 49 static PassRefPtr<Blob> create() 50 { 51 return adoptRef(new Blob); 52 } 53 54 static PassRefPtr<Blob> create(PassOwnPtr<BlobData> blobData, long long size) 55 { 56 return adoptRef(new Blob(blobData, size)); 57 } 58 59 // For deserialization. 60 static PassRefPtr<Blob> create(const KURL& srcURL, const String& type, long long size) 61 { 62 return adoptRef(new Blob(srcURL, type, size)); 63 } 64 65 virtual ~Blob(); 66 67 const KURL& url() const { return m_internalURL; } 68 const String& type() const { return m_type; } 69 70 virtual unsigned long long size() const { return static_cast<unsigned long long>(m_size); } 71 virtual bool isFile() const { return false; } 72 73 // URLRegistrable 74 virtual URLRegistry& registry() const OVERRIDE; 75 76 PassRefPtr<Blob> slice(long long start = 0, long long end = std::numeric_limits<long long>::max(), const String& contentType = String()) const; 77 78 protected: 79 Blob(); 80 Blob(PassOwnPtr<BlobData>, long long size); 81 82 // For deserialization. 83 Blob(const KURL& srcURL, const String& type, long long size); 84 85 // This is an internal URL referring to the blob data associated with this object. It serves 86 // as an identifier for this blob. The internal URL is never used to source the blob's content 87 // into an HTML or for FileRead'ing, public blob URLs must be used for those purposes. 88 KURL m_internalURL; 89 90 String m_type; 91 long long m_size; 92 }; 93 94 } // namespace WebCore 95 96 #endif // Blob_h 97
