third_party/WebKit/Source/core/html/HTMLDocument.cpp

   1 /*
   2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
   3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
   4  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public License
  17  * along with this library; see the file COPYING.LIB.  If not, write to
  18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA 02110-1301, USA.
  20  *
  21  * Portions are Copyright (C) 2002 Netscape Communications Corporation.
  22  * Other contributors: David Baron <dbaron@fas.harvard.edu>
  23  *
  24  * This library is free software; you can redistribute it and/or
  25  * modify it under the terms of the GNU Lesser General Public
  26  * License as published by the Free Software Foundation; either
  27  * version 2.1 of the License, or (at your option) any later version.
  28  *
  29  * This library is distributed in the hope that it will be useful,
  30  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  31  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  32  * Lesser General Public License for more details.
  33  *
  34  * You should have received a copy of the GNU Lesser General Public
  35  * License along with this library; if not, write to the Free Software
  36  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  37  *
  38  * Alternatively, the document type parsing portions of this file may be used
  39  * under the terms of either the Mozilla Public License Version 1.1, found at
  40  * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
  41  * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
  42  * (the "GPL"), in which case the provisions of the MPL or the GPL are
  43  * applicable instead of those above.  If you wish to allow use of your
  44  * version of this file only under the terms of one of those two
  45  * licenses (the MPL or the GPL) and not to allow others to use your
  46  * version of this file under the LGPL, indicate your decision by
  47  * deleting the provisions above and replace them with the notice and
  48  * other provisions required by the MPL or the GPL, as the case may be.
  49  * If you do not delete the provisions above, a recipient may use your
  50  * version of this file under any of the LGPL, the MPL or the GPL.
  51  */
  52
  53 #include "config.h"
  54 #include "core/html/HTMLDocument.h"
  55
  56 #include "bindings/core/v8/ScriptController.h"
  57 #include "core/HTMLNames.h"
  58 #include "core/frame/FrameView.h"
  59 #include "core/frame/LocalDOMWindow.h"
  60 #include "core/frame/LocalFrame.h"
  61 #include "core/html/HTMLBodyElement.h"
  62 #include "core/page/FocusController.h"
  63 #include "core/page/FrameTree.h"
  64 #include "core/page/Page.h"
  65 #include "wtf/text/StringBuilder.h"
  66
  67 namespace blink {
  68
  69 using namespace HTMLNames;
  70
  71 HTMLDocument::HTMLDocument(const DocumentInit& initializer, DocumentClassFlags extendedDocumentClasses)
  72     : Document(initializer, HTMLDocumentClass | extendedDocumentClasses)
  73 {
  74     clearXMLVersion();
  75     if (isSrcdocDocument() || initializer.importsController()) {
  76         ASSERT(inNoQuirksMode());
  77         lockCompatibilityMode();
  78     }
  79 }
  80
  81 HTMLDocument::~HTMLDocument()
  82 {
  83 }
  84
  85 HTMLBodyElement* HTMLDocument::htmlBodyElement() const
  86 {
  87     HTMLElement* body = this->body();
  88     return isHTMLBodyElement(body) ? toHTMLBodyElement(body) : 0;
  89 }
  90
  91 const AtomicString& HTMLDocument::bodyAttributeValue(const QualifiedName& name) const
  92 {
  93     if (HTMLBodyElement* body = htmlBodyElement())
  94         return body->fastGetAttribute(name);
  95     return nullAtom;
  96 }
  97
  98 void HTMLDocument::setBodyAttribute(const QualifiedName& name, const AtomicString& value)
  99 {
 100     if (HTMLBodyElement* body = htmlBodyElement()) {
 101         // FIXME: This check is apparently for benchmarks that set the same value repeatedly.
 102         // It's not clear what benchmarks though, it's also not clear why we don't avoid
 103         // causing a style recalc when setting the same value to a presentational attribute
 104         // in the common case.
 105         if (body->fastGetAttribute(name) != value)
 106             body->setAttribute(name, value);
 107     }
 108 }
 109
 110 const AtomicString& HTMLDocument::bgColor() const
 111 {
 112     return bodyAttributeValue(bgcolorAttr);
 113 }
 114
 115 void HTMLDocument::setBgColor(const AtomicString& value)
 116 {
 117     setBodyAttribute(bgcolorAttr, value);
 118 }
 119
 120 const AtomicString& HTMLDocument::fgColor() const
 121 {
 122     return bodyAttributeValue(textAttr);
 123 }
 124
 125 void HTMLDocument::setFgColor(const AtomicString& value)
 126 {
 127     setBodyAttribute(textAttr, value);
 128 }
 129
 130 const AtomicString& HTMLDocument::alinkColor() const
 131 {
 132     return bodyAttributeValue(alinkAttr);
 133 }
 134
 135 void HTMLDocument::setAlinkColor(const AtomicString& value)
 136 {
 137     setBodyAttribute(alinkAttr, value);
 138 }
 139
 140 const AtomicString& HTMLDocument::linkColor() const
 141 {
 142     return bodyAttributeValue(linkAttr);
 143 }
 144
 145 void HTMLDocument::setLinkColor(const AtomicString& value)
 146 {
 147     setBodyAttribute(linkAttr, value);
 148 }
 149
 150 const AtomicString& HTMLDocument::vlinkColor() const
 151 {
 152     return bodyAttributeValue(vlinkAttr);
 153 }
 154
 155 void HTMLDocument::setVlinkColor(const AtomicString& value)
 156 {
 157     setBodyAttribute(vlinkAttr, value);
 158 }
 159
 160 PassRefPtrWillBeRawPtr<Document> HTMLDocument::cloneDocumentWithoutChildren()
 161 {
 162     return create(DocumentInit(url()).withRegistrationContext(registrationContext()));
 163 }
 164
 165 // --------------------------------------------------------------------------
 166 // not part of the DOM
 167 // --------------------------------------------------------------------------
 168
 169 void HTMLDocument::addItemToMap(HashCountedSet<AtomicString>& map, const AtomicString& name)
 170 {
 171     if (name.isEmpty())
 172         return;
 173     map.add(name);
 174     if (LocalFrame* f = frame())
 175         f->script().namedItemAdded(this, name);
 176 }
 177
 178 void HTMLDocument::removeItemFromMap(HashCountedSet<AtomicString>& map, const AtomicString& name)
 179 {
 180     if (name.isEmpty())
 181         return;
 182     map.remove(name);
 183     if (LocalFrame* f = frame())
 184         f->script().namedItemRemoved(this, name);
 185 }
 186
 187 void HTMLDocument::addNamedItem(const AtomicString& name)
 188 {
 189     addItemToMap(m_namedItemCounts, name);
 190 }
 191
 192 void HTMLDocument::removeNamedItem(const AtomicString& name)
 193 {
 194     removeItemFromMap(m_namedItemCounts, name);
 195 }
 196
 197 void HTMLDocument::addExtraNamedItem(const AtomicString& name)
 198 {
 199     addItemToMap(m_extraNamedItemCounts, name);
 200 }
 201
 202 void HTMLDocument::removeExtraNamedItem(const AtomicString& name)
 203 {
 204     removeItemFromMap(m_extraNamedItemCounts, name);
 205 }
 206
 207 static HashSet<StringImpl*>* createHtmlCaseInsensitiveAttributesSet()
 208 {
 209     // This is the list of attributes in HTML 4.01 with values marked as "[CI]" or case-insensitive
 210     // Mozilla treats all other values as case-sensitive, thus so do we.
 211     HashSet<StringImpl*>* attrSet = new HashSet<StringImpl*>;
 212
 213     const QualifiedName* caseInsesitiveAttributes[] = {
 214         &accept_charsetAttr, &acceptAttr, &alignAttr, &alinkAttr, &axisAttr,
 215         &bgcolorAttr,
 216         &charsetAttr, &checkedAttr, &clearAttr, &codetypeAttr, &colorAttr, &compactAttr,
 217         &declareAttr, &deferAttr, &dirAttr, &directionAttr, &disabledAttr,
 218         &enctypeAttr,
 219         &faceAttr, &frameAttr,
 220         &hreflangAttr, &http_equivAttr,
 221         &langAttr, &languageAttr, &linkAttr,
 222         &mediaAttr, &methodAttr, &multipleAttr,
 223         &nohrefAttr, &noresizeAttr, &noshadeAttr, &nowrapAttr,
 224         &readonlyAttr, &relAttr, &revAttr, &rulesAttr,
 225         &scopeAttr, &scrollingAttr, &selectedAttr, &shapeAttr,
 226         &targetAttr, &textAttr, &typeAttr,
 227         &valignAttr, &valuetypeAttr, &vlinkAttr };
 228
 229     attrSet->reserveCapacityForSize(WTF_ARRAY_LENGTH(caseInsesitiveAttributes));
 230     for (const QualifiedName* attr : caseInsesitiveAttributes)
 231         attrSet->add(attr->localName().impl());
 232
 233     return attrSet;
 234 }
 235
 236 bool HTMLDocument::isCaseSensitiveAttribute(const QualifiedName& attributeName)
 237 {
 238     static HashSet<StringImpl*>* htmlCaseInsensitiveAttributesSet = createHtmlCaseInsensitiveAttributesSet();
 239     bool isPossibleHTMLAttr = !attributeName.hasPrefix() && (attributeName.namespaceURI() == nullAtom);
 240     return !isPossibleHTMLAttr || !htmlCaseInsensitiveAttributesSet->contains(attributeName.localName().impl());
 241 }
 242
 243 }