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/LocalDOMWindow.h"
59#include "core/frame/FrameView.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
67namespace blink {
68
69using namespace HTMLNames;
70
71HTMLDocument::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
81HTMLDocument::~HTMLDocument()
82{
83}
84
85HTMLBodyElement* HTMLDocument::htmlBodyElement() const
86{
87    HTMLElement* body = this->body();
88    return isHTMLBodyElement(body) ? toHTMLBodyElement(body) : 0;
89}
90
91const AtomicString& HTMLDocument::bodyAttributeValue(const QualifiedName& name) const
92{
93    if (HTMLBodyElement* body = htmlBodyElement())
94        return body->fastGetAttribute(name);
95    return nullAtom;
96}
97
98void 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
110const AtomicString& HTMLDocument::bgColor() const
111{
112    return bodyAttributeValue(bgcolorAttr);
113}
114
115void HTMLDocument::setBgColor(const AtomicString& value)
116{
117    setBodyAttribute(bgcolorAttr, value);
118}
119
120const AtomicString& HTMLDocument::fgColor() const
121{
122    return bodyAttributeValue(textAttr);
123}
124
125void HTMLDocument::setFgColor(const AtomicString& value)
126{
127    setBodyAttribute(textAttr, value);
128}
129
130const AtomicString& HTMLDocument::alinkColor() const
131{
132    return bodyAttributeValue(alinkAttr);
133}
134
135void HTMLDocument::setAlinkColor(const AtomicString& value)
136{
137    setBodyAttribute(alinkAttr, value);
138}
139
140const AtomicString& HTMLDocument::linkColor() const
141{
142    return bodyAttributeValue(linkAttr);
143}
144
145void HTMLDocument::setLinkColor(const AtomicString& value)
146{
147    setBodyAttribute(linkAttr, value);
148}
149
150const AtomicString& HTMLDocument::vlinkColor() const
151{
152    return bodyAttributeValue(vlinkAttr);
153}
154
155void HTMLDocument::setVlinkColor(const AtomicString& value)
156{
157    setBodyAttribute(vlinkAttr, value);
158}
159
160PassRefPtrWillBeRawPtr<Document> HTMLDocument::cloneDocumentWithoutChildren()
161{
162    return create(DocumentInit(url()).withRegistrationContext(registrationContext()));
163}
164
165// --------------------------------------------------------------------------
166// not part of the DOM
167// --------------------------------------------------------------------------
168
169void 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
178void 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
187void HTMLDocument::addNamedItem(const AtomicString& name)
188{
189    addItemToMap(m_namedItemCounts, name);
190}
191
192void HTMLDocument::removeNamedItem(const AtomicString& name)
193{
194    removeItemFromMap(m_namedItemCounts, name);
195}
196
197void HTMLDocument::addExtraNamedItem(const AtomicString& name)
198{
199    addItemToMap(m_extraNamedItemCounts, name);
200}
201
202void HTMLDocument::removeExtraNamedItem(const AtomicString& name)
203{
204    removeItemFromMap(m_extraNamedItemCounts, name);
205}
206
207static void addLocalNameToSet(HashSet<StringImpl*>* set, const QualifiedName& qName)
208{
209    set->add(qName.localName().impl());
210}
211
212static HashSet<StringImpl*>* createHtmlCaseInsensitiveAttributesSet()
213{
214    // This is the list of attributes in HTML 4.01 with values marked as "[CI]" or case-insensitive
215    // Mozilla treats all other values as case-sensitive, thus so do we.
216    HashSet<StringImpl*>* attrSet = new HashSet<StringImpl*>;
217
218    addLocalNameToSet(attrSet, accept_charsetAttr);
219    addLocalNameToSet(attrSet, acceptAttr);
220    addLocalNameToSet(attrSet, alignAttr);
221    addLocalNameToSet(attrSet, alinkAttr);
222    addLocalNameToSet(attrSet, axisAttr);
223    addLocalNameToSet(attrSet, bgcolorAttr);
224    addLocalNameToSet(attrSet, charsetAttr);
225    addLocalNameToSet(attrSet, checkedAttr);
226    addLocalNameToSet(attrSet, clearAttr);
227    addLocalNameToSet(attrSet, codetypeAttr);
228    addLocalNameToSet(attrSet, colorAttr);
229    addLocalNameToSet(attrSet, compactAttr);
230    addLocalNameToSet(attrSet, declareAttr);
231    addLocalNameToSet(attrSet, deferAttr);
232    addLocalNameToSet(attrSet, dirAttr);
233    addLocalNameToSet(attrSet, disabledAttr);
234    addLocalNameToSet(attrSet, enctypeAttr);
235    addLocalNameToSet(attrSet, faceAttr);
236    addLocalNameToSet(attrSet, frameAttr);
237    addLocalNameToSet(attrSet, hreflangAttr);
238    addLocalNameToSet(attrSet, http_equivAttr);
239    addLocalNameToSet(attrSet, langAttr);
240    addLocalNameToSet(attrSet, languageAttr);
241    addLocalNameToSet(attrSet, linkAttr);
242    addLocalNameToSet(attrSet, mediaAttr);
243    addLocalNameToSet(attrSet, methodAttr);
244    addLocalNameToSet(attrSet, multipleAttr);
245    addLocalNameToSet(attrSet, nohrefAttr);
246    addLocalNameToSet(attrSet, noresizeAttr);
247    addLocalNameToSet(attrSet, noshadeAttr);
248    addLocalNameToSet(attrSet, nowrapAttr);
249    addLocalNameToSet(attrSet, readonlyAttr);
250    addLocalNameToSet(attrSet, relAttr);
251    addLocalNameToSet(attrSet, revAttr);
252    addLocalNameToSet(attrSet, rulesAttr);
253    addLocalNameToSet(attrSet, scopeAttr);
254    addLocalNameToSet(attrSet, scrollingAttr);
255    addLocalNameToSet(attrSet, selectedAttr);
256    addLocalNameToSet(attrSet, shapeAttr);
257    addLocalNameToSet(attrSet, targetAttr);
258    addLocalNameToSet(attrSet, textAttr);
259    addLocalNameToSet(attrSet, typeAttr);
260    addLocalNameToSet(attrSet, valignAttr);
261    addLocalNameToSet(attrSet, valuetypeAttr);
262    addLocalNameToSet(attrSet, vlinkAttr);
263
264    return attrSet;
265}
266
267bool HTMLDocument::isCaseSensitiveAttribute(const QualifiedName& attributeName)
268{
269    static HashSet<StringImpl*>* htmlCaseInsensitiveAttributesSet = createHtmlCaseInsensitiveAttributesSet();
270    bool isPossibleHTMLAttr = !attributeName.hasPrefix() && (attributeName.namespaceURI() == nullAtom);
271    return !isPossibleHTMLAttr || !htmlCaseInsensitiveAttributesSet->contains(attributeName.localName().impl());
272}
273
274void HTMLDocument::write(LocalDOMWindow* callingWindow, const Vector<String>& text, ExceptionState& exceptionState)
275{
276    ASSERT(callingWindow);
277    StringBuilder builder;
278    for (size_t i = 0; i < text.size(); ++i)
279        builder.append(text[i]);
280    write(builder.toString(), callingWindow->document(), exceptionState);
281}
282
283void HTMLDocument::writeln(LocalDOMWindow* callingWindow, const Vector<String>& text, ExceptionState& exceptionState)
284{
285    ASSERT(callingWindow);
286    StringBuilder builder;
287    for (size_t i = 0; i < text.size(); ++i)
288        builder.append(text[i]);
289    writeln(builder.toString(), callingWindow->document(), exceptionState);
290}
291
292}
293