1 /* 2 * Copyright (C) 2009 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 #include "config.h" 32 33 #if ENABLE(DOM_STORAGE) 34 #include "V8Storage.h" 35 36 #include "Storage.h" 37 #include "V8Binding.h" 38 #include "V8Proxy.h" 39 40 namespace WebCore { 41 42 // Get an array containing the names of indexed properties in a collection. 43 v8::Handle<v8::Array> V8Storage::namedPropertyEnumerator(const v8::AccessorInfo& info) 44 { 45 Storage* storage = V8Storage::toNative(info.Holder()); 46 unsigned int length = storage->length(); 47 v8::Handle<v8::Array> properties = v8::Array::New(length); 48 for (unsigned int i = 0; i < length; ++i) { 49 String key = storage->key(i); 50 ASSERT(!key.isNull()); 51 String val = storage->getItem(key); 52 properties->Set(v8::Integer::New(i), v8String(key)); 53 } 54 55 return properties; 56 } 57 58 static v8::Handle<v8::Value> storageGetter(v8::Local<v8::String> v8Name, const v8::AccessorInfo& info) 59 { 60 Storage* storage = V8Storage::toNative(info.Holder()); 61 String name = toWebCoreString(v8Name); 62 63 if (storage->contains(name) && name != "length") 64 return v8String(storage->getItem(name)); 65 66 return notHandledByInterceptor(); 67 } 68 69 v8::Handle<v8::Value> V8Storage::indexedPropertyGetter(uint32_t index, const v8::AccessorInfo& info) 70 { 71 INC_STATS("DOM.Storage.IndexedPropertyGetter"); 72 v8::Local<v8::Integer> indexV8 = v8::Integer::New(index); 73 return storageGetter(indexV8->ToString(), info); 74 } 75 76 v8::Handle<v8::Value> V8Storage::namedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info) 77 { 78 INC_STATS("DOM.Storage.NamedPropertyGetter"); 79 return storageGetter(name, info); 80 } 81 82 v8::Handle<v8::Integer> V8Storage::namedPropertyQuery(v8::Local<v8::String> v8Name, const v8::AccessorInfo& info) 83 { 84 INC_STATS("DOM.Storage.NamedPropertyQuery"); 85 86 Storage* storage = V8Storage::toNative(info.Holder()); 87 String name = toWebCoreString(v8Name); 88 89 if (storage->contains(name) && name != "length") 90 return v8::Integer::New(v8::None); 91 92 return v8::Handle<v8::Integer>(); 93 } 94 95 static v8::Handle<v8::Value> storageSetter(v8::Local<v8::String> v8Name, v8::Local<v8::Value> v8Value, const v8::AccessorInfo& info) 96 { 97 Storage* storage = V8Storage::toNative(info.Holder()); 98 String name = toWebCoreString(v8Name); 99 String value = toWebCoreString(v8Value); 100 101 // Silently ignore length (rather than letting the bindings raise an exception). 102 if (name == "length") 103 return v8Value; 104 105 v8::Handle<v8::Value> prototypeValue = info.Holder()->GetRealNamedPropertyInPrototypeChain(v8Name); 106 if (!prototypeValue.IsEmpty()) 107 return notHandledByInterceptor(); 108 109 ExceptionCode ec = 0; 110 storage->setItem(name, value, ec); 111 if (ec) 112 return throwError(ec); 113 114 return v8Value; 115 } 116 117 v8::Handle<v8::Value> V8Storage::indexedPropertySetter(uint32_t index, v8::Local<v8::Value> value, const v8::AccessorInfo& info) 118 { 119 INC_STATS("DOM.Storage.NamedPropertyGetter"); 120 v8::Local<v8::Integer> indexV8 = v8::Integer::New(index); 121 return storageSetter(indexV8->ToString(), value, info); 122 } 123 124 v8::Handle<v8::Value> V8Storage::namedPropertySetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info) 125 { 126 INC_STATS("DOM.Storage.NamedPropertySetter"); 127 return storageSetter(name, value, info); 128 } 129 130 static v8::Handle<v8::Boolean> storageDeleter(v8::Local<v8::String> v8Name, const v8::AccessorInfo& info) 131 { 132 Storage* storage = V8Storage::toNative(info.Holder()); 133 String name = toWebCoreString(v8Name); 134 135 if (storage->contains(name)) { 136 storage->removeItem(name); 137 return v8::True(); 138 } 139 140 return deletionNotHandledByInterceptor(); 141 } 142 143 v8::Handle<v8::Boolean> V8Storage::indexedPropertyDeleter(uint32_t index, const v8::AccessorInfo& info) 144 { 145 INC_STATS("DOM.Storage.IndexedPropertyDeleter"); 146 v8::Local<v8::Integer> indexV8 = v8::Integer::New(index); 147 return storageDeleter(indexV8->ToString(), info); 148 } 149 150 v8::Handle<v8::Boolean> V8Storage::namedPropertyDeleter(v8::Local<v8::String> name, const v8::AccessorInfo& info) 151 { 152 INC_STATS("DOM.Storage.NamedPropertyDeleter"); 153 return storageDeleter(name, info); 154 } 155 156 } // namespace WebCore 157 158 #endif 159
