1 /* 2 * Copyright (C) 2007, 2008, 2009 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 COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "JSHTMLDocument.h" 28 29 #include "Frame.h" 30 #include "HTMLAllCollection.h" 31 #include "HTMLBodyElement.h" 32 #include "HTMLCollection.h" 33 #include "HTMLDocument.h" 34 #include "HTMLElement.h" 35 #include "HTMLIFrameElement.h" 36 #include "HTMLNames.h" 37 #include "JSDOMWindow.h" 38 #include "JSDOMWindowCustom.h" 39 #include "JSDOMWindowShell.h" 40 #include "JSHTMLCollection.h" 41 #include "SegmentedString.h" 42 #include "DocumentParser.h" 43 #include <runtime/Error.h> 44 #include <runtime/JSCell.h> 45 #include <wtf/unicode/CharacterNames.h> 46 47 using namespace JSC; 48 49 namespace WebCore { 50 51 using namespace HTMLNames; 52 53 bool JSHTMLDocument::canGetItemsForName(ExecState*, HTMLDocument* document, const Identifier& propertyName) 54 { 55 AtomicStringImpl* atomicPropertyName = findAtomicString(propertyName); 56 return atomicPropertyName && (document->hasNamedItem(atomicPropertyName) || document->hasExtraNamedItem(atomicPropertyName)); 57 } 58 59 JSValue JSHTMLDocument::nameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName) 60 { 61 JSHTMLDocument* thisObj = static_cast<JSHTMLDocument*>(asObject(slotBase)); 62 HTMLDocument* document = static_cast<HTMLDocument*>(thisObj->impl()); 63 64 String name = identifierToString(propertyName); 65 RefPtr<HTMLCollection> collection = document->documentNamedItems(name); 66 67 unsigned length = collection->length(); 68 if (!length) 69 return jsUndefined(); 70 71 if (length == 1) { 72 Node* node = collection->firstItem(); 73 74 Frame* frame; 75 if (node->hasTagName(iframeTag) && (frame = static_cast<HTMLIFrameElement*>(node)->contentFrame())) 76 return toJS(exec, frame); 77 78 return toJS(exec, node); 79 } 80 81 return toJS(exec, collection.get()); 82 } 83 84 // Custom attributes 85 86 JSValue JSHTMLDocument::all(ExecState* exec) const 87 { 88 // If "all" has been overwritten, return the overwritten value 89 JSValue v = getDirect(exec->globalData(), Identifier(exec, "all")); 90 if (v) 91 return v; 92 93 return toJS(exec, static_cast<HTMLDocument*>(impl())->all().get()); 94 } 95 96 void JSHTMLDocument::setAll(ExecState* exec, JSValue value) 97 { 98 // Add "all" to the property map. 99 putDirect(exec->globalData(), Identifier(exec, "all"), value); 100 } 101 102 // Custom functions 103 104 JSValue JSHTMLDocument::open(ExecState* exec) 105 { 106 // For compatibility with other browsers, pass open calls with more than 2 parameters to the window. 107 if (exec->argumentCount() > 2) { 108 Frame* frame = static_cast<HTMLDocument*>(impl())->frame(); 109 if (frame) { 110 JSDOMWindowShell* wrapper = toJSDOMWindowShell(frame, currentWorld(exec)); 111 if (wrapper) { 112 JSValue function = wrapper->get(exec, Identifier(exec, "open")); 113 CallData callData; 114 CallType callType = ::getCallData(function, callData); 115 if (callType == CallTypeNone) 116 return throwTypeError(exec); 117 return JSC::call(exec, function, callType, callData, wrapper, ArgList(exec)); 118 } 119 } 120 return jsUndefined(); 121 } 122 123 // document.open clobbers the security context of the document and 124 // aliases it with the active security context. 125 Document* activeDocument = asJSDOMWindow(exec->lexicalGlobalObject())->impl()->document(); 126 127 // In the case of two parameters or fewer, do a normal document open. 128 static_cast<HTMLDocument*>(impl())->open(activeDocument); 129 return this; 130 } 131 132 enum NewlineRequirement { DoNotAddNewline, DoAddNewline }; 133 134 static inline void documentWrite(ExecState* exec, HTMLDocument* document, NewlineRequirement addNewline) 135 { 136 // DOM only specifies single string argument, but browsers allow multiple or no arguments. 137 138 size_t size = exec->argumentCount(); 139 140 UString firstString = exec->argument(0).toString(exec); 141 SegmentedString segmentedString = ustringToString(firstString); 142 if (size != 1) { 143 if (!size) 144 segmentedString.clear(); 145 else { 146 for (size_t i = 1; i < size; ++i) { 147 UString subsequentString = exec->argument(i).toString(exec); 148 segmentedString.append(SegmentedString(ustringToString(subsequentString))); 149 } 150 } 151 } 152 if (addNewline) 153 segmentedString.append(SegmentedString(String(&newlineCharacter, 1))); 154 155 Document* activeDocument = asJSDOMWindow(exec->lexicalGlobalObject())->impl()->document(); 156 document->write(segmentedString, activeDocument); 157 } 158 159 JSValue JSHTMLDocument::write(ExecState* exec) 160 { 161 documentWrite(exec, static_cast<HTMLDocument*>(impl()), DoNotAddNewline); 162 return jsUndefined(); 163 } 164 165 JSValue JSHTMLDocument::writeln(ExecState* exec) 166 { 167 documentWrite(exec, static_cast<HTMLDocument*>(impl()), DoAddNewline); 168 return jsUndefined(); 169 } 170 171 } // namespace WebCore 172