1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
5 * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
6 * Copyright (C) 2011 Motorola Mobility. All rights reserved.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB. If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 *
23 */
24
25 #include "config.h"
26 #include "core/html/HTMLElement.h"
27
28 #include "CSSPropertyNames.h"
29 #include "CSSValueKeywords.h"
30 #include "HTMLNames.h"
31 #include "XMLNames.h"
32 #include "bindings/v8/ExceptionState.h"
33 #include "bindings/v8/ScriptController.h"
34 #include "bindings/v8/ScriptEventListener.h"
35 #include "core/css/CSSParser.h"
36 #include "core/css/CSSValuePool.h"
37 #include "core/css/StylePropertySet.h"
38 #include "core/dom/DocumentFragment.h"
39 #include "core/dom/ExceptionCode.h"
40 #include "core/dom/NodeTraversal.h"
41 #include "core/dom/Text.h"
42 #include "core/editing/markup.h"
43 #include "core/events/EventListener.h"
44 #include "core/events/KeyboardEvent.h"
45 #include "core/events/ThreadLocalEventNames.h"
46 #include "core/html/HTMLBRElement.h"
47 #include "core/html/HTMLFormElement.h"
48 #include "core/html/HTMLInputElement.h"
49 #include "core/html/HTMLTemplateElement.h"
50 #include "core/html/HTMLTextFormControlElement.h"
51 #include "core/html/parser/HTMLParserIdioms.h"
52 #include "core/loader/FrameLoader.h"
53 #include "core/frame/Frame.h"
54 #include "core/frame/Settings.h"
55 #include "core/rendering/RenderWordBreak.h"
56 #include "platform/text/BidiResolver.h"
57 #include "platform/text/TextRunIterator.h"
58 #include "wtf/StdLibExtras.h"
59 #include "wtf/text/CString.h"
60
61 namespace WebCore {
62
63 using namespace HTMLNames;
64 using namespace WTF;
65
66 using std::min;
67 using std::max;
68
create(const QualifiedName & tagName,Document & document)69 PassRefPtr<HTMLElement> HTMLElement::create(const QualifiedName& tagName, Document& document)
70 {
71 return adoptRef(new HTMLElement(tagName, document));
72 }
73
nodeName() const74 String HTMLElement::nodeName() const
75 {
76 // FIXME: Would be nice to have an atomicstring lookup based off uppercase
77 // chars that does not have to copy the string on a hit in the hash.
78 // FIXME: We should have a way to detect XHTML elements and replace the hasPrefix() check with it.
79 if (document().isHTMLDocument() && !tagQName().hasPrefix())
80 return tagQName().localNameUpper();
81 return Element::nodeName();
82 }
83
ieForbidsInsertHTML() const84 bool HTMLElement::ieForbidsInsertHTML() const
85 {
86 // FIXME: Supposedly IE disallows settting innerHTML, outerHTML
87 // and createContextualFragment on these tags. We have no tests to
88 // verify this however, so this list could be totally wrong.
89 // This list was moved from the previous endTagRequirement() implementation.
90 // This is also called from editing and assumed to be the list of tags
91 // for which no end tag should be serialized. It's unclear if the list for
92 // IE compat and the list for serialization sanity are the same.
93 if (hasLocalName(areaTag)
94 || hasLocalName(baseTag)
95 || hasLocalName(basefontTag)
96 || hasLocalName(brTag)
97 || hasLocalName(colTag)
98 || hasLocalName(embedTag)
99 || hasLocalName(frameTag)
100 || hasLocalName(hrTag)
101 || hasLocalName(imageTag)
102 || hasLocalName(imgTag)
103 || hasLocalName(inputTag)
104 || hasLocalName(isindexTag)
105 || hasLocalName(linkTag)
106 || hasLocalName(metaTag)
107 || hasLocalName(paramTag)
108 || hasLocalName(sourceTag)
109 || hasLocalName(wbrTag))
110 return true;
111 return false;
112 }
113
unicodeBidiAttributeForDirAuto(HTMLElement * element)114 static inline CSSValueID unicodeBidiAttributeForDirAuto(HTMLElement* element)
115 {
116 if (element->hasLocalName(preTag) || element->hasLocalName(textareaTag))
117 return CSSValueWebkitPlaintext;
118 // FIXME: For bdo element, dir="auto" should result in "bidi-override isolate" but we don't support having multiple values in unicode-bidi yet.
119 // See https://bugs.webkit.org/show_bug.cgi?id=73164.
120 return CSSValueWebkitIsolate;
121 }
122
parseBorderWidthAttribute(const AtomicString & value) const123 unsigned HTMLElement::parseBorderWidthAttribute(const AtomicString& value) const
124 {
125 unsigned borderWidth = 0;
126 if (value.isEmpty() || !parseHTMLNonNegativeInteger(value, borderWidth))
127 return hasLocalName(tableTag) ? 1 : borderWidth;
128 return borderWidth;
129 }
130
applyBorderAttributeToStyle(const AtomicString & value,MutableStylePropertySet * style)131 void HTMLElement::applyBorderAttributeToStyle(const AtomicString& value, MutableStylePropertySet* style)
132 {
133 addPropertyToPresentationAttributeStyle(style, CSSPropertyBorderWidth, parseBorderWidthAttribute(value), CSSPrimitiveValue::CSS_PX);
134 addPropertyToPresentationAttributeStyle(style, CSSPropertyBorderStyle, CSSValueSolid);
135 }
136
mapLanguageAttributeToLocale(const AtomicString & value,MutableStylePropertySet * style)137 void HTMLElement::mapLanguageAttributeToLocale(const AtomicString& value, MutableStylePropertySet* style)
138 {
139 if (!value.isEmpty()) {
140 // Have to quote so the locale id is treated as a string instead of as a CSS keyword.
141 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLocale, quoteCSSString(value));
142 } else {
143 // The empty string means the language is explicitly unknown.
144 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLocale, CSSValueAuto);
145 }
146 }
147
isPresentationAttribute(const QualifiedName & name) const148 bool HTMLElement::isPresentationAttribute(const QualifiedName& name) const
149 {
150 if (name == alignAttr || name == contenteditableAttr || name == hiddenAttr || name == langAttr || name.matches(XMLNames::langAttr) || name == draggableAttr || name == dirAttr)
151 return true;
152 return Element::isPresentationAttribute(name);
153 }
154
isValidDirAttribute(const AtomicString & value)155 static inline bool isValidDirAttribute(const AtomicString& value)
156 {
157 return equalIgnoringCase(value, "auto") || equalIgnoringCase(value, "ltr") || equalIgnoringCase(value, "rtl");
158 }
159
collectStyleForPresentationAttribute(const QualifiedName & name,const AtomicString & value,MutableStylePropertySet * style)160 void HTMLElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
161 {
162 if (name == alignAttr) {
163 if (equalIgnoringCase(value, "middle"))
164 addPropertyToPresentationAttributeStyle(style, CSSPropertyTextAlign, CSSValueCenter);
165 else
166 addPropertyToPresentationAttributeStyle(style, CSSPropertyTextAlign, value);
167 } else if (name == contenteditableAttr) {
168 if (value.isEmpty() || equalIgnoringCase(value, "true")) {
169 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserModify, CSSValueReadWrite);
170 addPropertyToPresentationAttributeStyle(style, CSSPropertyWordWrap, CSSValueBreakWord);
171 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLineBreak, CSSValueAfterWhiteSpace);
172 } else if (equalIgnoringCase(value, "plaintext-only")) {
173 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserModify, CSSValueReadWritePlaintextOnly);
174 addPropertyToPresentationAttributeStyle(style, CSSPropertyWordWrap, CSSValueBreakWord);
175 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLineBreak, CSSValueAfterWhiteSpace);
176 } else if (equalIgnoringCase(value, "false"))
177 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserModify, CSSValueReadOnly);
178 } else if (name == hiddenAttr) {
179 addPropertyToPresentationAttributeStyle(style, CSSPropertyDisplay, CSSValueNone);
180 } else if (name == draggableAttr) {
181 if (equalIgnoringCase(value, "true")) {
182 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserDrag, CSSValueElement);
183 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserSelect, CSSValueNone);
184 } else if (equalIgnoringCase(value, "false"))
185 addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserDrag, CSSValueNone);
186 } else if (name == dirAttr) {
187 if (equalIgnoringCase(value, "auto"))
188 addPropertyToPresentationAttributeStyle(style, CSSPropertyUnicodeBidi, unicodeBidiAttributeForDirAuto(this));
189 else {
190 if (isValidDirAttribute(value))
191 addPropertyToPresentationAttributeStyle(style, CSSPropertyDirection, value);
192 else
193 addPropertyToPresentationAttributeStyle(style, CSSPropertyDirection, "ltr");
194 if (!hasTagName(bdiTag) && !hasTagName(bdoTag) && !hasTagName(outputTag))
195 addPropertyToPresentationAttributeStyle(style, CSSPropertyUnicodeBidi, CSSValueEmbed);
196 }
197 } else if (name.matches(XMLNames::langAttr))
198 mapLanguageAttributeToLocale(value, style);
199 else if (name == langAttr) {
200 // xml:lang has a higher priority than lang.
201 if (!fastHasAttribute(XMLNames::langAttr))
202 mapLanguageAttributeToLocale(value, style);
203 } else
204 Element::collectStyleForPresentationAttribute(name, value, style);
205 }
206
eventNameForAttributeName(const QualifiedName & attrName) const207 const AtomicString& HTMLElement::eventNameForAttributeName(const QualifiedName& attrName) const
208 {
209 if (!attrName.namespaceURI().isNull())
210 return nullAtom;
211
212 typedef HashMap<AtomicString, AtomicString> StringToStringMap;
213 DEFINE_STATIC_LOCAL(StringToStringMap, attributeNameToEventNameMap, ());
214 if (!attributeNameToEventNameMap.size()) {
215 attributeNameToEventNameMap.set(onanimationstartAttr.localName(), EventTypeNames::animationstart);
216 attributeNameToEventNameMap.set(onanimationiterationAttr.localName(), EventTypeNames::animationiteration);
217 attributeNameToEventNameMap.set(onanimationendAttr.localName(), EventTypeNames::animationend);
218 attributeNameToEventNameMap.set(oncancelAttr.localName(), EventTypeNames::cancel);
219 attributeNameToEventNameMap.set(onclickAttr.localName(), EventTypeNames::click);
220 attributeNameToEventNameMap.set(oncloseAttr.localName(), EventTypeNames::close);
221 attributeNameToEventNameMap.set(oncontextmenuAttr.localName(), EventTypeNames::contextmenu);
222 attributeNameToEventNameMap.set(ondblclickAttr.localName(), EventTypeNames::dblclick);
223 attributeNameToEventNameMap.set(onmousedownAttr.localName(), EventTypeNames::mousedown);
224 attributeNameToEventNameMap.set(onmouseenterAttr.localName(), EventTypeNames::mouseenter);
225 attributeNameToEventNameMap.set(onmouseleaveAttr.localName(), EventTypeNames::mouseleave);
226 attributeNameToEventNameMap.set(onmousemoveAttr.localName(), EventTypeNames::mousemove);
227 attributeNameToEventNameMap.set(onmouseoutAttr.localName(), EventTypeNames::mouseout);
228 attributeNameToEventNameMap.set(onmouseoverAttr.localName(), EventTypeNames::mouseover);
229 attributeNameToEventNameMap.set(onmouseupAttr.localName(), EventTypeNames::mouseup);
230 attributeNameToEventNameMap.set(onmousewheelAttr.localName(), EventTypeNames::mousewheel);
231 attributeNameToEventNameMap.set(onwheelAttr.localName(), EventTypeNames::wheel);
232 attributeNameToEventNameMap.set(onfocusAttr.localName(), EventTypeNames::focus);
233 attributeNameToEventNameMap.set(onfocusinAttr.localName(), EventTypeNames::focusin);
234 attributeNameToEventNameMap.set(onfocusoutAttr.localName(), EventTypeNames::focusout);
235 attributeNameToEventNameMap.set(onblurAttr.localName(), EventTypeNames::blur);
236 attributeNameToEventNameMap.set(onkeydownAttr.localName(), EventTypeNames::keydown);
237 attributeNameToEventNameMap.set(onkeypressAttr.localName(), EventTypeNames::keypress);
238 attributeNameToEventNameMap.set(onkeyupAttr.localName(), EventTypeNames::keyup);
239 attributeNameToEventNameMap.set(onscrollAttr.localName(), EventTypeNames::scroll);
240 attributeNameToEventNameMap.set(onbeforecutAttr.localName(), EventTypeNames::beforecut);
241 attributeNameToEventNameMap.set(oncutAttr.localName(), EventTypeNames::cut);
242 attributeNameToEventNameMap.set(onbeforecopyAttr.localName(), EventTypeNames::beforecopy);
243 attributeNameToEventNameMap.set(oncopyAttr.localName(), EventTypeNames::copy);
244 attributeNameToEventNameMap.set(onbeforepasteAttr.localName(), EventTypeNames::beforepaste);
245 attributeNameToEventNameMap.set(onpasteAttr.localName(), EventTypeNames::paste);
246 attributeNameToEventNameMap.set(ondragenterAttr.localName(), EventTypeNames::dragenter);
247 attributeNameToEventNameMap.set(ondragoverAttr.localName(), EventTypeNames::dragover);
248 attributeNameToEventNameMap.set(ondragleaveAttr.localName(), EventTypeNames::dragleave);
249 attributeNameToEventNameMap.set(ondropAttr.localName(), EventTypeNames::drop);
250 attributeNameToEventNameMap.set(ondragstartAttr.localName(), EventTypeNames::dragstart);
251 attributeNameToEventNameMap.set(ondragAttr.localName(), EventTypeNames::drag);
252 attributeNameToEventNameMap.set(ondragendAttr.localName(), EventTypeNames::dragend);
253 attributeNameToEventNameMap.set(onselectstartAttr.localName(), EventTypeNames::selectstart);
254 attributeNameToEventNameMap.set(onsubmitAttr.localName(), EventTypeNames::submit);
255 attributeNameToEventNameMap.set(onerrorAttr.localName(), EventTypeNames::error);
256 attributeNameToEventNameMap.set(onwebkitanimationstartAttr.localName(), EventTypeNames::webkitAnimationStart);
257 attributeNameToEventNameMap.set(onwebkitanimationiterationAttr.localName(), EventTypeNames::webkitAnimationIteration);
258 attributeNameToEventNameMap.set(onwebkitanimationendAttr.localName(), EventTypeNames::webkitAnimationEnd);
259 attributeNameToEventNameMap.set(onwebkittransitionendAttr.localName(), EventTypeNames::webkitTransitionEnd);
260 attributeNameToEventNameMap.set(ontransitionendAttr.localName(), EventTypeNames::webkitTransitionEnd);
261 attributeNameToEventNameMap.set(oninputAttr.localName(), EventTypeNames::input);
262 attributeNameToEventNameMap.set(oninvalidAttr.localName(), EventTypeNames::invalid);
263 attributeNameToEventNameMap.set(ontouchstartAttr.localName(), EventTypeNames::touchstart);
264 attributeNameToEventNameMap.set(ontouchmoveAttr.localName(), EventTypeNames::touchmove);
265 attributeNameToEventNameMap.set(ontouchendAttr.localName(), EventTypeNames::touchend);
266 attributeNameToEventNameMap.set(ontouchcancelAttr.localName(), EventTypeNames::touchcancel);
267 attributeNameToEventNameMap.set(onwebkitfullscreenchangeAttr.localName(), EventTypeNames::webkitfullscreenchange);
268 attributeNameToEventNameMap.set(onwebkitfullscreenerrorAttr.localName(), EventTypeNames::webkitfullscreenerror);
269 attributeNameToEventNameMap.set(onabortAttr.localName(), EventTypeNames::abort);
270 attributeNameToEventNameMap.set(oncanplayAttr.localName(), EventTypeNames::canplay);
271 attributeNameToEventNameMap.set(oncanplaythroughAttr.localName(), EventTypeNames::canplaythrough);
272 attributeNameToEventNameMap.set(onchangeAttr.localName(), EventTypeNames::change);
273 attributeNameToEventNameMap.set(oncuechangeAttr.localName(), EventTypeNames::cuechange);
274 attributeNameToEventNameMap.set(ondurationchangeAttr.localName(), EventTypeNames::durationchange);
275 attributeNameToEventNameMap.set(onemptiedAttr.localName(), EventTypeNames::emptied);
276 attributeNameToEventNameMap.set(onendedAttr.localName(), EventTypeNames::ended);
277 attributeNameToEventNameMap.set(onloadeddataAttr.localName(), EventTypeNames::loadeddata);
278 attributeNameToEventNameMap.set(onloadedmetadataAttr.localName(), EventTypeNames::loadedmetadata);
279 attributeNameToEventNameMap.set(onloadstartAttr.localName(), EventTypeNames::loadstart);
280 attributeNameToEventNameMap.set(onpauseAttr.localName(), EventTypeNames::pause);
281 attributeNameToEventNameMap.set(onplayAttr.localName(), EventTypeNames::play);
282 attributeNameToEventNameMap.set(onplayingAttr.localName(), EventTypeNames::playing);
283 attributeNameToEventNameMap.set(onprogressAttr.localName(), EventTypeNames::progress);
284 attributeNameToEventNameMap.set(onratechangeAttr.localName(), EventTypeNames::ratechange);
285 attributeNameToEventNameMap.set(onresetAttr.localName(), EventTypeNames::reset);
286 attributeNameToEventNameMap.set(onseekedAttr.localName(), EventTypeNames::seeked);
287 attributeNameToEventNameMap.set(onseekingAttr.localName(), EventTypeNames::seeking);
288 attributeNameToEventNameMap.set(onselectAttr.localName(), EventTypeNames::select);
289 attributeNameToEventNameMap.set(onshowAttr.localName(), EventTypeNames::show);
290 attributeNameToEventNameMap.set(onstalledAttr.localName(), EventTypeNames::stalled);
291 attributeNameToEventNameMap.set(onsuspendAttr.localName(), EventTypeNames::suspend);
292 attributeNameToEventNameMap.set(ontimeupdateAttr.localName(), EventTypeNames::timeupdate);
293 attributeNameToEventNameMap.set(onvolumechangeAttr.localName(), EventTypeNames::volumechange);
294 attributeNameToEventNameMap.set(onwaitingAttr.localName(), EventTypeNames::waiting);
295 attributeNameToEventNameMap.set(onloadAttr.localName(), EventTypeNames::load);
296 }
297
298 return attributeNameToEventNameMap.get(attrName.localName());
299 }
300
parseAttribute(const QualifiedName & name,const AtomicString & value)301 void HTMLElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
302 {
303 if (isIdAttributeName(name) || name == classAttr || name == styleAttr)
304 return Element::parseAttribute(name, value);
305
306 if (name == dirAttr)
307 dirAttributeChanged(value);
308 else if (name == tabindexAttr) {
309 int tabindex = 0;
310 if (value.isEmpty()) {
311 clearTabIndexExplicitlyIfNeeded();
312 if (treeScope().adjustedFocusedElement() == this) {
313 // We might want to call blur(), but it's dangerous to dispatch
314 // events here.
315 document().setNeedsFocusedElementCheck();
316 }
317 } else if (parseHTMLInteger(value, tabindex)) {
318 // Clamp tabindex to the range of 'short' to match Firefox's behavior.
319 setTabIndexExplicitly(max(static_cast<int>(std::numeric_limits<short>::min()), min(tabindex, static_cast<int>(std::numeric_limits<short>::max()))));
320 }
321 } else {
322 const AtomicString& eventName = eventNameForAttributeName(name);
323 if (!eventName.isNull())
324 setAttributeEventListener(eventName, createAttributeEventListener(this, name, value));
325 }
326 }
327
textToFragment(const String & text,ExceptionState & exceptionState)328 PassRefPtr<DocumentFragment> HTMLElement::textToFragment(const String& text, ExceptionState& exceptionState)
329 {
330 RefPtr<DocumentFragment> fragment = DocumentFragment::create(document());
331 unsigned int i, length = text.length();
332 UChar c = 0;
333 for (unsigned int start = 0; start < length; ) {
334
335 // Find next line break.
336 for (i = start; i < length; i++) {
337 c = text[i];
338 if (c == '\r' || c == '\n')
339 break;
340 }
341
342 fragment->appendChild(Text::create(document(), text.substring(start, i - start)), exceptionState);
343 if (exceptionState.hadException())
344 return 0;
345
346 if (c == '\r' || c == '\n') {
347 fragment->appendChild(HTMLBRElement::create(document()), exceptionState);
348 if (exceptionState.hadException())
349 return 0;
350 // Make sure \r\n doesn't result in two line breaks.
351 if (c == '\r' && i + 1 < length && text[i + 1] == '\n')
352 i++;
353 }
354
355 start = i + 1; // Character after line break.
356 }
357
358 return fragment;
359 }
360
setInnerText(const String & text,ExceptionState & exceptionState)361 void HTMLElement::setInnerText(const String& text, ExceptionState& exceptionState)
362 {
363 if (ieForbidsInsertHTML()) {
364 exceptionState.throwDOMException(NoModificationAllowedError, "The '" + localName() + "' element does not support text insertion.");
365 return;
366 }
367 if (hasLocalName(colTag) || hasLocalName(colgroupTag) || hasLocalName(framesetTag) ||
368 hasLocalName(headTag) || hasLocalName(htmlTag) || hasLocalName(tableTag) ||
369 hasLocalName(tbodyTag) || hasLocalName(tfootTag) || hasLocalName(theadTag) ||
370 hasLocalName(trTag)) {
371 exceptionState.throwDOMException(NoModificationAllowedError, "The '" + localName() + "' element does not support text insertion.");
372 return;
373 }
374
375 // FIXME: This doesn't take whitespace collapsing into account at all.
376
377 if (!text.contains('\n') && !text.contains('\r')) {
378 if (text.isEmpty()) {
379 removeChildren();
380 return;
381 }
382 replaceChildrenWithText(this, text, exceptionState);
383 return;
384 }
385
386 // FIXME: Do we need to be able to detect preserveNewline style even when there's no renderer?
387 // FIXME: Can the renderer be out of date here? Do we need to call updateStyleIfNeeded?
388 // For example, for the contents of textarea elements that are display:none?
389 RenderObject* r = renderer();
390 if (r && r->style()->preserveNewline()) {
391 if (!text.contains('\r')) {
392 replaceChildrenWithText(this, text, exceptionState);
393 return;
394 }
395 String textWithConsistentLineBreaks = text;
396 textWithConsistentLineBreaks.replace("\r\n", "\n");
397 textWithConsistentLineBreaks.replace('\r', '\n');
398 replaceChildrenWithText(this, textWithConsistentLineBreaks, exceptionState);
399 return;
400 }
401
402 // Add text nodes and <br> elements.
403 RefPtr<DocumentFragment> fragment = textToFragment(text, exceptionState);
404 if (!exceptionState.hadException())
405 replaceChildrenWithFragment(this, fragment.release(), exceptionState);
406 }
407
setOuterText(const String & text,ExceptionState & exceptionState)408 void HTMLElement::setOuterText(const String &text, ExceptionState& exceptionState)
409 {
410 if (ieForbidsInsertHTML()) {
411 exceptionState.throwDOMException(NoModificationAllowedError, "The '" + localName() + "' element does not support text insertion.");
412 return;
413 }
414 if (hasLocalName(colTag) || hasLocalName(colgroupTag) || hasLocalName(framesetTag) ||
415 hasLocalName(headTag) || hasLocalName(htmlTag) || hasLocalName(tableTag) ||
416 hasLocalName(tbodyTag) || hasLocalName(tfootTag) || hasLocalName(theadTag) ||
417 hasLocalName(trTag)) {
418 exceptionState.throwDOMException(NoModificationAllowedError, "The '" + localName() + "' element does not support text insertion.");
419 return;
420 }
421
422 ContainerNode* parent = parentNode();
423 if (!parent) {
424 exceptionState.throwDOMException(NoModificationAllowedError, "The element has no parent.");
425 return;
426 }
427
428 RefPtr<Node> prev = previousSibling();
429 RefPtr<Node> next = nextSibling();
430 RefPtr<Node> newChild;
431
432 // Convert text to fragment with <br> tags instead of linebreaks if needed.
433 if (text.contains('\r') || text.contains('\n'))
434 newChild = textToFragment(text, exceptionState);
435 else
436 newChild = Text::create(document(), text);
437
438 // textToFragment might cause mutation events.
439 if (!this || !parentNode())
440 exceptionState.throwDOMException(HierarchyRequestError, "The element has no parent.");
441
442 if (exceptionState.hadException())
443 return;
444
445 parent->replaceChild(newChild.release(), this, exceptionState);
446
447 RefPtr<Node> node = next ? next->previousSibling() : 0;
448 if (!exceptionState.hadException() && node && node->isTextNode())
449 mergeWithNextTextNode(node.release(), exceptionState);
450
451 if (!exceptionState.hadException() && prev && prev->isTextNode())
452 mergeWithNextTextNode(prev.release(), exceptionState);
453 }
454
insertAdjacentElement(const String & where,Element * newChild,ExceptionState & exceptionState)455 Element* HTMLElement::insertAdjacentElement(const String& where, Element* newChild, ExceptionState& exceptionState)
456 {
457 if (!newChild) {
458 // IE throws COM Exception E_INVALIDARG; this is the best DOM exception alternative.
459 exceptionState.throwTypeError("The node provided is null.");
460 return 0;
461 }
462
463 Node* returnValue = insertAdjacent(where, newChild, exceptionState);
464 return toElement(returnValue);
465 }
466
insertAdjacentText(const String & where,const String & text,ExceptionState & exceptionState)467 void HTMLElement::insertAdjacentText(const String& where, const String& text, ExceptionState& exceptionState)
468 {
469 RefPtr<Text> textNode = document().createTextNode(text);
470 insertAdjacent(where, textNode.get(), exceptionState);
471 }
472
applyAlignmentAttributeToStyle(const AtomicString & alignment,MutableStylePropertySet * style)473 void HTMLElement::applyAlignmentAttributeToStyle(const AtomicString& alignment, MutableStylePropertySet* style)
474 {
475 // Vertical alignment with respect to the current baseline of the text
476 // right or left means floating images.
477 CSSValueID floatValue = CSSValueInvalid;
478 CSSValueID verticalAlignValue = CSSValueInvalid;
479
480 if (equalIgnoringCase(alignment, "absmiddle"))
481 verticalAlignValue = CSSValueMiddle;
482 else if (equalIgnoringCase(alignment, "absbottom"))
483 verticalAlignValue = CSSValueBottom;
484 else if (equalIgnoringCase(alignment, "left")) {
485 floatValue = CSSValueLeft;
486 verticalAlignValue = CSSValueTop;
487 } else if (equalIgnoringCase(alignment, "right")) {
488 floatValue = CSSValueRight;
489 verticalAlignValue = CSSValueTop;
490 } else if (equalIgnoringCase(alignment, "top"))
491 verticalAlignValue = CSSValueTop;
492 else if (equalIgnoringCase(alignment, "middle"))
493 verticalAlignValue = CSSValueWebkitBaselineMiddle;
494 else if (equalIgnoringCase(alignment, "center"))
495 verticalAlignValue = CSSValueMiddle;
496 else if (equalIgnoringCase(alignment, "bottom"))
497 verticalAlignValue = CSSValueBaseline;
498 else if (equalIgnoringCase(alignment, "texttop"))
499 verticalAlignValue = CSSValueTextTop;
500
501 if (floatValue != CSSValueInvalid)
502 addPropertyToPresentationAttributeStyle(style, CSSPropertyFloat, floatValue);
503
504 if (verticalAlignValue != CSSValueInvalid)
505 addPropertyToPresentationAttributeStyle(style, CSSPropertyVerticalAlign, verticalAlignValue);
506 }
507
hasCustomFocusLogic() const508 bool HTMLElement::hasCustomFocusLogic() const
509 {
510 return false;
511 }
512
supportsSpatialNavigationFocus() const513 bool HTMLElement::supportsSpatialNavigationFocus() const
514 {
515 // This function checks whether the element satisfies the extended criteria
516 // for the element to be focusable, introduced by spatial navigation feature,
517 // i.e. checks if click or keyboard event handler is specified.
518 // This is the way to make it possible to navigate to (focus) elements
519 // which web designer meant for being active (made them respond to click events).
520
521 if (!document().settings() || !document().settings()->spatialNavigationEnabled())
522 return false;
523 return hasEventListeners(EventTypeNames::click)
524 || hasEventListeners(EventTypeNames::keydown)
525 || hasEventListeners(EventTypeNames::keypress)
526 || hasEventListeners(EventTypeNames::keyup);
527 }
528
supportsFocus() const529 bool HTMLElement::supportsFocus() const
530 {
531 // FIXME: supportsFocus() can be called when layout is not up to date.
532 // Logic that deals with the renderer should be moved to rendererIsFocusable().
533 // But supportsFocus must return true when the element is editable, or else
534 // it won't be focusable. Furthermore, supportsFocus cannot just return true
535 // always or else tabIndex() will change for all HTML elements.
536 return Element::supportsFocus() || (rendererIsEditable() && parentNode() && !parentNode()->rendererIsEditable())
537 || supportsSpatialNavigationFocus();
538 }
539
contentEditable() const540 String HTMLElement::contentEditable() const
541 {
542 const AtomicString& value = fastGetAttribute(contenteditableAttr);
543
544 if (value.isNull())
545 return "inherit";
546 if (value.isEmpty() || equalIgnoringCase(value, "true"))
547 return "true";
548 if (equalIgnoringCase(value, "false"))
549 return "false";
550 if (equalIgnoringCase(value, "plaintext-only"))
551 return "plaintext-only";
552
553 return "inherit";
554 }
555
setContentEditable(const String & enabled,ExceptionState & exceptionState)556 void HTMLElement::setContentEditable(const String& enabled, ExceptionState& exceptionState)
557 {
558 if (equalIgnoringCase(enabled, "true"))
559 setAttribute(contenteditableAttr, "true");
560 else if (equalIgnoringCase(enabled, "false"))
561 setAttribute(contenteditableAttr, "false");
562 else if (equalIgnoringCase(enabled, "plaintext-only"))
563 setAttribute(contenteditableAttr, "plaintext-only");
564 else if (equalIgnoringCase(enabled, "inherit"))
565 removeAttribute(contenteditableAttr);
566 else
567 exceptionState.throwDOMException(SyntaxError, "The value provided ('" + enabled + "') is not one of 'true', 'false', 'plaintext-only', or 'inherit'.");
568 }
569
draggable() const570 bool HTMLElement::draggable() const
571 {
572 return equalIgnoringCase(getAttribute(draggableAttr), "true");
573 }
574
setDraggable(bool value)575 void HTMLElement::setDraggable(bool value)
576 {
577 setAttribute(draggableAttr, value ? "true" : "false");
578 }
579
spellcheck() const580 bool HTMLElement::spellcheck() const
581 {
582 return isSpellCheckingEnabled();
583 }
584
setSpellcheck(bool enable)585 void HTMLElement::setSpellcheck(bool enable)
586 {
587 setAttribute(spellcheckAttr, enable ? "true" : "false");
588 }
589
590
click()591 void HTMLElement::click()
592 {
593 dispatchSimulatedClick(0, SendNoEvents);
594 }
595
accessKeyAction(bool sendMouseEvents)596 void HTMLElement::accessKeyAction(bool sendMouseEvents)
597 {
598 dispatchSimulatedClick(0, sendMouseEvents ? SendMouseUpDownEvents : SendNoEvents);
599 }
600
title() const601 String HTMLElement::title() const
602 {
603 return getAttribute(titleAttr);
604 }
605
tabIndex() const606 short HTMLElement::tabIndex() const
607 {
608 if (supportsFocus())
609 return Element::tabIndex();
610 return -1;
611 }
612
setTabIndex(int value)613 void HTMLElement::setTabIndex(int value)
614 {
615 setIntegralAttribute(tabindexAttr, value);
616 }
617
translateAttributeMode() const618 TranslateAttributeMode HTMLElement::translateAttributeMode() const
619 {
620 const AtomicString& value = getAttribute(translateAttr);
621
622 if (value == nullAtom)
623 return TranslateAttributeInherit;
624 if (equalIgnoringCase(value, "yes") || equalIgnoringCase(value, ""))
625 return TranslateAttributeYes;
626 if (equalIgnoringCase(value, "no"))
627 return TranslateAttributeNo;
628
629 return TranslateAttributeInherit;
630 }
631
translate() const632 bool HTMLElement::translate() const
633 {
634 for (const Node* n = this; n; n = n->parentNode()) {
635 if (n->isHTMLElement()) {
636 TranslateAttributeMode mode = toHTMLElement(n)->translateAttributeMode();
637 if (mode != TranslateAttributeInherit) {
638 ASSERT(mode == TranslateAttributeYes || mode == TranslateAttributeNo);
639 return mode == TranslateAttributeYes;
640 }
641 }
642 }
643
644 // Default on the root element is translate=yes.
645 return true;
646 }
647
setTranslate(bool enable)648 void HTMLElement::setTranslate(bool enable)
649 {
650 setAttribute(translateAttr, enable ? "yes" : "no");
651 }
652
rendererIsNeeded(const RenderStyle & style)653 bool HTMLElement::rendererIsNeeded(const RenderStyle& style)
654 {
655 if (hasLocalName(noscriptTag)) {
656 Frame* frame = document().frame();
657 if (frame && frame->script().canExecuteScripts(NotAboutToExecuteScript))
658 return false;
659 } else if (hasLocalName(noembedTag)) {
660 Frame* frame = document().frame();
661 if (frame && frame->loader().allowPlugins(NotAboutToInstantiatePlugin))
662 return false;
663 }
664 return Element::rendererIsNeeded(style);
665 }
666
createRenderer(RenderStyle * style)667 RenderObject* HTMLElement::createRenderer(RenderStyle* style)
668 {
669 if (hasLocalName(wbrTag))
670 return new RenderWordBreak(this);
671 return RenderObject::createObject(this, style);
672 }
673
findFormAncestor() const674 HTMLFormElement* HTMLElement::findFormAncestor() const
675 {
676 for (ContainerNode* ancestor = parentNode(); ancestor; ancestor = ancestor->parentNode()) {
677 if (ancestor->hasTagName(formTag))
678 return toHTMLFormElement(ancestor);
679 }
680 return 0;
681 }
682
elementAffectsDirectionality(const Node * node)683 static inline bool elementAffectsDirectionality(const Node* node)
684 {
685 return node->isHTMLElement() && (node->hasTagName(bdiTag) || toHTMLElement(node)->hasAttribute(dirAttr));
686 }
687
setHasDirAutoFlagRecursively(Node * firstNode,bool flag,Node * lastNode=0)688 static void setHasDirAutoFlagRecursively(Node* firstNode, bool flag, Node* lastNode = 0)
689 {
690 firstNode->setSelfOrAncestorHasDirAutoAttribute(flag);
691
692 Node* node = firstNode->firstChild();
693
694 while (node) {
695 if (node->selfOrAncestorHasDirAutoAttribute() == flag)
696 return;
697
698 if (elementAffectsDirectionality(node)) {
699 if (node == lastNode)
700 return;
701 node = NodeTraversal::nextSkippingChildren(*node, firstNode);
702 continue;
703 }
704 node->setSelfOrAncestorHasDirAutoAttribute(flag);
705 if (node == lastNode)
706 return;
707 node = NodeTraversal::next(*node, firstNode);
708 }
709 }
710
childrenChanged(bool changedByParser,Node * beforeChange,Node * afterChange,int childCountDelta)711 void HTMLElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
712 {
713 Element::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
714 adjustDirectionalityIfNeededAfterChildrenChanged(beforeChange, childCountDelta);
715 }
716
hasDirectionAuto() const717 bool HTMLElement::hasDirectionAuto() const
718 {
719 const AtomicString& direction = fastGetAttribute(dirAttr);
720 return (hasTagName(bdiTag) && direction == nullAtom) || equalIgnoringCase(direction, "auto");
721 }
722
directionalityIfhasDirAutoAttribute(bool & isAuto) const723 TextDirection HTMLElement::directionalityIfhasDirAutoAttribute(bool& isAuto) const
724 {
725 if (!(selfOrAncestorHasDirAutoAttribute() && hasDirectionAuto())) {
726 isAuto = false;
727 return LTR;
728 }
729
730 isAuto = true;
731 return directionality();
732 }
733
determineDirectionality(const String & value,bool & hasStrongDirectionality)734 static TextDirection determineDirectionality(const String& value, bool& hasStrongDirectionality)
735 {
736 TextRun run(value);
737 BidiResolver<TextRunIterator, BidiCharacterRun> bidiResolver;
738 bidiResolver.setStatus(BidiStatus(run.direction(), run.directionalOverride()));
739 bidiResolver.setPositionIgnoringNestedIsolates(TextRunIterator(&run, 0));
740 return bidiResolver.determineParagraphDirectionality(&hasStrongDirectionality);
741 }
742
directionality(Node ** strongDirectionalityTextNode) const743 TextDirection HTMLElement::directionality(Node** strongDirectionalityTextNode) const
744 {
745 if (hasTagName(inputTag)) {
746 HTMLInputElement* inputElement = toHTMLInputElement(const_cast<HTMLElement*>(this));
747 bool hasStrongDirectionality;
748 TextDirection textDirection = determineDirectionality(inputElement->value(), hasStrongDirectionality);
749 if (strongDirectionalityTextNode)
750 *strongDirectionalityTextNode = hasStrongDirectionality ? inputElement : 0;
751 return textDirection;
752 }
753
754 Node* node = firstChild();
755 while (node) {
756 // Skip bdi, script, style and text form controls.
757 if (equalIgnoringCase(node->nodeName(), "bdi") || node->hasTagName(scriptTag) || node->hasTagName(styleTag)
758 || (node->isElementNode() && toElement(node)->isTextFormControl())) {
759 node = NodeTraversal::nextSkippingChildren(*node, this);
760 continue;
761 }
762
763 // Skip elements with valid dir attribute
764 if (node->isElementNode()) {
765 AtomicString dirAttributeValue = toElement(node)->fastGetAttribute(dirAttr);
766 if (isValidDirAttribute(dirAttributeValue)) {
767 node = NodeTraversal::nextSkippingChildren(*node, this);
768 continue;
769 }
770 }
771
772 if (node->isTextNode()) {
773 bool hasStrongDirectionality;
774 TextDirection textDirection = determineDirectionality(node->textContent(true), hasStrongDirectionality);
775 if (hasStrongDirectionality) {
776 if (strongDirectionalityTextNode)
777 *strongDirectionalityTextNode = node;
778 return textDirection;
779 }
780 }
781 node = NodeTraversal::next(*node, this);
782 }
783 if (strongDirectionalityTextNode)
784 *strongDirectionalityTextNode = 0;
785 return LTR;
786 }
787
dirAttributeChanged(const AtomicString & value)788 void HTMLElement::dirAttributeChanged(const AtomicString& value)
789 {
790 Element* parent = parentElement();
791
792 if (parent && parent->isHTMLElement() && parent->selfOrAncestorHasDirAutoAttribute())
793 toHTMLElement(parent)->adjustDirectionalityIfNeededAfterChildAttributeChanged(this);
794
795 if (equalIgnoringCase(value, "auto"))
796 calculateAndAdjustDirectionality();
797 }
798
adjustDirectionalityIfNeededAfterChildAttributeChanged(Element * child)799 void HTMLElement::adjustDirectionalityIfNeededAfterChildAttributeChanged(Element* child)
800 {
801 ASSERT(selfOrAncestorHasDirAutoAttribute());
802 Node* strongDirectionalityTextNode;
803 TextDirection textDirection = directionality(&strongDirectionalityTextNode);
804 setHasDirAutoFlagRecursively(child, false);
805 if (renderer() && renderer()->style() && renderer()->style()->direction() != textDirection) {
806 Element* elementToAdjust = this;
807 for (; elementToAdjust; elementToAdjust = elementToAdjust->parentElement()) {
808 if (elementAffectsDirectionality(elementToAdjust)) {
809 elementToAdjust->setNeedsStyleRecalc();
810 return;
811 }
812 }
813 }
814 }
815
calculateAndAdjustDirectionality()816 void HTMLElement::calculateAndAdjustDirectionality()
817 {
818 Node* strongDirectionalityTextNode;
819 TextDirection textDirection = directionality(&strongDirectionalityTextNode);
820 setHasDirAutoFlagRecursively(this, true, strongDirectionalityTextNode);
821 if (renderer() && renderer()->style() && renderer()->style()->direction() != textDirection)
822 setNeedsStyleRecalc();
823 }
824
adjustDirectionalityIfNeededAfterChildrenChanged(Node * beforeChange,int childCountDelta)825 void HTMLElement::adjustDirectionalityIfNeededAfterChildrenChanged(Node* beforeChange, int childCountDelta)
826 {
827 if (document().renderer() && childCountDelta < 0) {
828 Node* node = beforeChange ? NodeTraversal::nextSkippingChildren(*beforeChange) : 0;
829 for (int counter = 0; node && counter < childCountDelta; counter++, node = NodeTraversal::nextSkippingChildren(*node)) {
830 if (elementAffectsDirectionality(node))
831 continue;
832
833 setHasDirAutoFlagRecursively(node, false);
834 }
835 }
836
837 if (!selfOrAncestorHasDirAutoAttribute())
838 return;
839
840 Node* oldMarkedNode = beforeChange ? NodeTraversal::nextSkippingChildren(*beforeChange) : 0;
841 while (oldMarkedNode && elementAffectsDirectionality(oldMarkedNode))
842 oldMarkedNode = NodeTraversal::nextSkippingChildren(*oldMarkedNode, this);
843 if (oldMarkedNode)
844 setHasDirAutoFlagRecursively(oldMarkedNode, false);
845
846 for (Element* elementToAdjust = this; elementToAdjust; elementToAdjust = elementToAdjust->parentElement()) {
847 if (elementAffectsDirectionality(elementToAdjust)) {
848 toHTMLElement(elementToAdjust)->calculateAndAdjustDirectionality();
849 return;
850 }
851 }
852 }
853
addHTMLLengthToStyle(MutableStylePropertySet * style,CSSPropertyID propertyID,const String & value)854 void HTMLElement::addHTMLLengthToStyle(MutableStylePropertySet* style, CSSPropertyID propertyID, const String& value)
855 {
856 // FIXME: This function should not spin up the CSS parser, but should instead just figure out the correct
857 // length unit and make the appropriate parsed value.
858
859 // strip attribute garbage..
860 StringImpl* v = value.impl();
861 if (v) {
862 unsigned int l = 0;
863
864 while (l < v->length() && (*v)[l] <= ' ')
865 l++;
866
867 for (; l < v->length(); l++) {
868 UChar cc = (*v)[l];
869 if (cc > '9')
870 break;
871 if (cc < '0') {
872 if (cc == '%' || cc == '*')
873 l++;
874 if (cc != '.')
875 break;
876 }
877 }
878
879 if (l != v->length()) {
880 addPropertyToPresentationAttributeStyle(style, propertyID, v->substring(0, l));
881 return;
882 }
883 }
884
885 addPropertyToPresentationAttributeStyle(style, propertyID, value);
886 }
887
parseColorStringWithCrazyLegacyRules(const String & colorString)888 static RGBA32 parseColorStringWithCrazyLegacyRules(const String& colorString)
889 {
890 // Per spec, only look at the first 128 digits of the string.
891 const size_t maxColorLength = 128;
892 // We'll pad the buffer with two extra 0s later, so reserve two more than the max.
893 Vector<char, maxColorLength+2> digitBuffer;
894
895 size_t i = 0;
896 // Skip a leading #.
897 if (colorString[0] == '#')
898 i = 1;
899
900 // Grab the first 128 characters, replacing non-hex characters with 0.
901 // Non-BMP characters are replaced with "00" due to them appearing as two "characters" in the String.
902 for (; i < colorString.length() && digitBuffer.size() < maxColorLength; i++) {
903 if (!isASCIIHexDigit(colorString[i]))
904 digitBuffer.append('0');
905 else
906 digitBuffer.append(colorString[i]);
907 }
908
909 if (!digitBuffer.size())
910 return Color::black;
911
912 // Pad the buffer out to at least the next multiple of three in size.
913 digitBuffer.append('0');
914 digitBuffer.append('0');
915
916 if (digitBuffer.size() < 6)
917 return makeRGB(toASCIIHexValue(digitBuffer[0]), toASCIIHexValue(digitBuffer[1]), toASCIIHexValue(digitBuffer[2]));
918
919 // Split the digits into three components, then search the last 8 digits of each component.
920 ASSERT(digitBuffer.size() >= 6);
921 size_t componentLength = digitBuffer.size() / 3;
922 size_t componentSearchWindowLength = min<size_t>(componentLength, 8);
923 size_t redIndex = componentLength - componentSearchWindowLength;
924 size_t greenIndex = componentLength * 2 - componentSearchWindowLength;
925 size_t blueIndex = componentLength * 3 - componentSearchWindowLength;
926 // Skip digits until one of them is non-zero, or we've only got two digits left in the component.
927 while (digitBuffer[redIndex] == '0' && digitBuffer[greenIndex] == '0' && digitBuffer[blueIndex] == '0' && (componentLength - redIndex) > 2) {
928 redIndex++;
929 greenIndex++;
930 blueIndex++;
931 }
932 ASSERT(redIndex + 1 < componentLength);
933 ASSERT(greenIndex >= componentLength);
934 ASSERT(greenIndex + 1 < componentLength * 2);
935 ASSERT(blueIndex >= componentLength * 2);
936 ASSERT_WITH_SECURITY_IMPLICATION(blueIndex + 1 < digitBuffer.size());
937
938 int redValue = toASCIIHexValue(digitBuffer[redIndex], digitBuffer[redIndex + 1]);
939 int greenValue = toASCIIHexValue(digitBuffer[greenIndex], digitBuffer[greenIndex + 1]);
940 int blueValue = toASCIIHexValue(digitBuffer[blueIndex], digitBuffer[blueIndex + 1]);
941 return makeRGB(redValue, greenValue, blueValue);
942 }
943
944 // Color parsing that matches HTML's "rules for parsing a legacy color value"
addHTMLColorToStyle(MutableStylePropertySet * style,CSSPropertyID propertyID,const String & attributeValue)945 void HTMLElement::addHTMLColorToStyle(MutableStylePropertySet* style, CSSPropertyID propertyID, const String& attributeValue)
946 {
947 // An empty string doesn't apply a color. (One containing only whitespace does, which is why this check occurs before stripping.)
948 if (attributeValue.isEmpty())
949 return;
950
951 String colorString = attributeValue.stripWhiteSpace();
952
953 // "transparent" doesn't apply a color either.
954 if (equalIgnoringCase(colorString, "transparent"))
955 return;
956
957 // If the string is a named CSS color or a 3/6-digit hex color, use that.
958 Color parsedColor(colorString);
959 if (!parsedColor.isValid())
960 parsedColor.setRGB(parseColorStringWithCrazyLegacyRules(colorString));
961
962 style->setProperty(propertyID, cssValuePool().createColorValue(parsedColor.rgb()));
963 }
964
isInteractiveContent() const965 bool HTMLElement::isInteractiveContent() const
966 {
967 return false;
968 }
969
defaultEventHandler(Event * event)970 void HTMLElement::defaultEventHandler(Event* event)
971 {
972 if (event->type() == EventTypeNames::keypress && event->isKeyboardEvent()) {
973 handleKeypressEvent(toKeyboardEvent(event));
974 if (event->defaultHandled())
975 return;
976 }
977
978 Element::defaultEventHandler(event);
979 }
980
handleKeypressEvent(KeyboardEvent * event)981 void HTMLElement::handleKeypressEvent(KeyboardEvent* event)
982 {
983 if (!document().settings() || !document().settings()->spatialNavigationEnabled() || !supportsFocus())
984 return;
985 // if the element is a text form control (like <input type=text> or <textarea>)
986 // or has contentEditable attribute on, we should enter a space or newline
987 // even in spatial navigation mode instead of handling it as a "click" action.
988 if (isTextFormControl() || isContentEditable())
989 return;
990 int charCode = event->charCode();
991 if (charCode == '\r' || charCode == ' ') {
992 dispatchSimulatedClick(event);
993 event->setDefaultHandled();
994 }
995 }
996
997 } // namespace WebCore
998
999 #ifndef NDEBUG
1000
1001 // For use in the debugger
1002 void dumpInnerHTML(WebCore::HTMLElement*);
1003
dumpInnerHTML(WebCore::HTMLElement * element)1004 void dumpInnerHTML(WebCore::HTMLElement* element)
1005 {
1006 printf("%s\n", element->innerHTML().ascii().data());
1007 }
1008 #endif
1009