1 /* 2 * Copyright (C) 2013 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 V8BlobCustomHelpers_h 32 #define V8BlobCustomHelpers_h 33 34 #include "bindings/v8/V8Binding.h" 35 36 namespace WebCore { 37 38 class BlobBuilder; 39 class ExceptionState; 40 41 // Shared code between the custom constructor bindings for Blob and File. 42 namespace V8BlobCustomHelpers { 43 44 // Parsed properties from a BlobPropertyBag or a FilePropertyBag. 45 // 46 // Instances are stack-allocated by the File and Blob constructor. 47 // 48 // parseBlobPropertyBag is only called when constructors receive a value for 49 // the optional BlobPropertyBag / FilePropertyBag argument. The defaults set in 50 // the constructor are used otherwise. 51 class ParsedProperties { 52 public: 53 explicit ParsedProperties(bool hasFileProperties); 54 55 const String& contentType() const { return m_contentType; } 56 const String& endings() const { return m_endings; } 57 void setLastModified(double); 58 void setDefaultLastModified(); 59 double lastModified() const 60 { 61 ASSERT(m_hasFileProperties); 62 ASSERT(m_hasLastModified); 63 return m_lastModified; 64 } 65 66 // Extracts the "type" and "endings" properties out of the BlobPropertyBag passed to a Blob constructor. 67 // http://www.w3.org/TR/FileAPI/#constructorParams 68 // Returns true if everything went well, false if a JS exception was thrown. 69 bool parseBlobPropertyBag(v8::Local<v8::Value> propertyBag, const char* blobClassName, ExceptionState&, v8::Isolate*); 70 71 private: 72 String m_contentType; 73 String m_endings; 74 75 // False if this contains the properties of a BlobPropertyBag. 76 bool m_hasFileProperties; 77 78 double m_lastModified; 79 #ifndef NDEBUG 80 bool m_hasLastModified; 81 #endif // NDEBUG 82 }; 83 84 // Appends the blobParts passed to a Blob or File constructor into a BlobBuilder. 85 // http://www.w3.org/TR/FileAPI/#constructorParams 86 // Returns true if everything went well, false if a JS exception was thrown. 87 bool processBlobParts(v8::Local<v8::Object> blobParts, uint32_t blobPartsLength, const String& endings, BlobBuilder&, v8::Isolate*); 88 89 } // namespace V8BlobCustomHelpers 90 91 } // namespace WebCore 92 93 #endif // V8BlobCustomHelpers_h 94
