1 /* 2 * Copyright (C) 2010 Apple 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "JSDOMStringMap.h" 28 29 #include "DOMStringMap.h" 30 #include <wtf/text/AtomicString.h> 31 32 using namespace JSC; 33 34 namespace WebCore { 35 36 bool JSDOMStringMap::canGetItemsForName(ExecState*, DOMStringMap* impl, const Identifier& propertyName) 37 { 38 return impl->contains(identifierToAtomicString(propertyName)); 39 } 40 41 JSValue JSDOMStringMap::nameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName) 42 { 43 JSDOMStringMap* thisObj = static_cast<JSDOMStringMap*>(asObject(slotBase)); 44 return jsString(exec, thisObj->impl()->item(identifierToAtomicString(propertyName))); 45 } 46 47 void JSDOMStringMap::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode) 48 { 49 Vector<String> names; 50 m_impl->getNames(names); 51 size_t length = names.size(); 52 for (size_t i = 0; i < length; ++i) 53 propertyNames.add(Identifier(exec, stringToUString(names[i]))); 54 55 Base::getOwnPropertyNames(exec, propertyNames, mode); 56 } 57 58 bool JSDOMStringMap::deleteProperty(ExecState* exec, const Identifier& propertyName) 59 { 60 // Only perform the custom delete if the object doesn't have a native property by this name. 61 // Since hasProperty() would end up calling canGetItemsForName() and be fooled, we need to check 62 // the native property slots manually. 63 PropertySlot slot; 64 if (getStaticValueSlot<JSDOMStringMap, Base>(exec, s_info.propHashTable(exec), this, propertyName, slot)) 65 return false; 66 67 JSValue prototype = this->prototype(); 68 if (prototype.isObject() && asObject(prototype)->hasProperty(exec, propertyName)) 69 return false; 70 71 ExceptionCode ec = 0; 72 m_impl->deleteItem(identifierToString(propertyName), ec); 73 setDOMException(exec, ec); 74 75 return true; 76 } 77 78 bool JSDOMStringMap::putDelegate(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot&) 79 { 80 // Only perform the custom put if the object doesn't have a native property by this name. 81 // Since hasProperty() would end up calling canGetItemsForName() and be fooled, we need to check 82 // the native property slots manually. 83 PropertySlot slot; 84 if (getStaticValueSlot<JSDOMStringMap, Base>(exec, s_info.propHashTable(exec), this, propertyName, slot)) 85 return false; 86 87 JSValue prototype = this->prototype(); 88 if (prototype.isObject() && asObject(prototype)->hasProperty(exec, propertyName)) 89 return false; 90 91 String stringValue = ustringToString(value.toString(exec)); 92 if (exec->hadException()) 93 return true; 94 95 ExceptionCode ec = 0; 96 impl()->setItem(identifierToString(propertyName), stringValue, ec); 97 setDOMException(exec, ec); 98 99 return true; 100 } 101 102 } // namespace WebCore 103