| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * Copyright (C) 2004-2008, 2013, 2014 Apple Inc. All rights reserved. |
| * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. |
| * (http://www.torchmobile.com/) |
| * Copyright (C) 2011 Motorola Mobility. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "core/html/HTMLElement.h" |
| |
| #include "bindings/core/v8/ExceptionState.h" |
| #include "bindings/core/v8/ScriptEventListener.h" |
| #include "core/CSSPropertyNames.h" |
| #include "core/CSSValueKeywords.h" |
| #include "core/HTMLNames.h" |
| #include "core/MathMLNames.h" |
| #include "core/XMLNames.h" |
| #include "core/css/CSSColorValue.h" |
| #include "core/css/CSSMarkup.h" |
| #include "core/css/StylePropertySet.h" |
| #include "core/dom/DocumentFragment.h" |
| #include "core/dom/ElementTraversal.h" |
| #include "core/dom/ExceptionCode.h" |
| #include "core/dom/NodeTraversal.h" |
| #include "core/dom/StyleChangeReason.h" |
| #include "core/dom/Text.h" |
| #include "core/dom/shadow/ElementShadow.h" |
| #include "core/dom/shadow/FlatTreeTraversal.h" |
| #include "core/dom/shadow/ShadowRoot.h" |
| #include "core/editing/EditingUtilities.h" |
| #include "core/editing/serializers/Serialization.h" |
| #include "core/events/EventListener.h" |
| #include "core/events/KeyboardEvent.h" |
| #include "core/frame/Settings.h" |
| #include "core/frame/UseCounter.h" |
| #include "core/html/HTMLBRElement.h" |
| #include "core/html/HTMLFormElement.h" |
| #include "core/html/HTMLInputElement.h" |
| #include "core/html/HTMLMenuElement.h" |
| #include "core/html/HTMLTemplateElement.h" |
| #include "core/html/HTMLTextFormControlElement.h" |
| #include "core/html/parser/HTMLParserIdioms.h" |
| #include "core/layout/LayoutBoxModelObject.h" |
| #include "core/layout/LayoutObject.h" |
| #include "core/page/SpatialNavigation.h" |
| #include "core/svg/SVGSVGElement.h" |
| #include "platform/Language.h" |
| #include "platform/text/BidiResolver.h" |
| #include "platform/text/BidiTextRun.h" |
| #include "platform/text/TextRunIterator.h" |
| #include "wtf/StdLibExtras.h" |
| #include "wtf/text/CString.h" |
| |
| namespace blink { |
| |
| using namespace HTMLNames; |
| using namespace WTF; |
| |
| using namespace std; |
| |
| namespace { |
| |
| // https://w3c.github.io/editing/execCommand.html#editing-host |
| bool isEditingHost(const Node& node) { |
| if (!node.isHTMLElement()) |
| return false; |
| String normalizedValue = toHTMLElement(node).contentEditable(); |
| if (normalizedValue == "true" || normalizedValue == "plaintext-only") |
| return true; |
| return node.document().inDesignMode() && |
| node.document().documentElement() == &node; |
| } |
| |
| // https://w3c.github.io/editing/execCommand.html#editable |
| bool isEditable(const Node& node) { |
| if (isEditingHost(node)) |
| return false; |
| if (node.isHTMLElement() && toHTMLElement(node).contentEditable() == "false") |
| return false; |
| if (!node.parentNode()) |
| return false; |
| if (!isEditingHost(*node.parentNode()) && !isEditable(*node.parentNode())) |
| return false; |
| if (node.isHTMLElement()) |
| return true; |
| if (isSVGSVGElement(node)) |
| return true; |
| if (node.isElementNode() && toElement(node).hasTagName(MathMLNames::mathTag)) |
| return true; |
| return !node.isElementNode() && node.parentNode()->isHTMLElement(); |
| } |
| |
| } // anonymous namespace |
| |
| DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(HTMLElement); |
| |
| String HTMLElement::debugNodeName() const { |
| if (document().isHTMLDocument()) { |
| return tagQName().hasPrefix() ? Element::nodeName().upper() |
| : tagQName().localName().upper(); |
| } |
| return Element::nodeName(); |
| } |
| |
| String HTMLElement::nodeName() const { |
| // localNameUpper may intern and cache an AtomicString. |
| DCHECK(isMainThread()); |
| |
| // FIXME: Would be nice to have an atomicstring lookup based off uppercase |
| // chars that does not have to copy the string on a hit in the hash. |
| // FIXME: We should have a way to detect XHTML elements and replace the |
| // hasPrefix() check with it. |
| if (document().isHTMLDocument()) { |
| if (!tagQName().hasPrefix()) |
| return tagQName().localNameUpper(); |
| return Element::nodeName().upper(); |
| } |
| return Element::nodeName(); |
| } |
| |
| bool HTMLElement::ieForbidsInsertHTML() const { |
| // FIXME: Supposedly IE disallows settting innerHTML, outerHTML |
| // and createContextualFragment on these tags. We have no tests to |
| // verify this however, so this list could be totally wrong. |
| // This list was moved from the previous endTagRequirement() implementation. |
| // This is also called from editing and assumed to be the list of tags |
| // for which no end tag should be serialized. It's unclear if the list for |
| // IE compat and the list for serialization sanity are the same. |
| if (hasTagName(areaTag) || hasTagName(baseTag) || hasTagName(basefontTag) || |
| hasTagName(brTag) || hasTagName(colTag) || hasTagName(embedTag) || |
| hasTagName(frameTag) || hasTagName(hrTag) || hasTagName(imageTag) || |
| hasTagName(imgTag) || hasTagName(inputTag) || hasTagName(keygenTag) || |
| hasTagName(linkTag) || (RuntimeEnabledFeatures::contextMenuEnabled() && |
| hasTagName(menuitemTag)) || |
| hasTagName(metaTag) || hasTagName(paramTag) || hasTagName(sourceTag) || |
| hasTagName(trackTag) || hasTagName(wbrTag)) |
| return true; |
| return false; |
| } |
| |
| static inline CSSValueID unicodeBidiAttributeForDirAuto(HTMLElement* element) { |
| if (element->hasTagName(preTag) || element->hasTagName(textareaTag)) |
| return CSSValueWebkitPlaintext; |
| // FIXME: For bdo element, dir="auto" should result in "bidi-override isolate" |
| // but we don't support having multiple values in unicode-bidi yet. |
| // See https://bugs.webkit.org/show_bug.cgi?id=73164. |
| return CSSValueWebkitIsolate; |
| } |
| |
| unsigned HTMLElement::parseBorderWidthAttribute( |
| const AtomicString& value) const { |
| unsigned borderWidth = 0; |
| if (value.isEmpty() || !parseHTMLNonNegativeInteger(value, borderWidth)) { |
| if (hasTagName(tableTag) && !value.isNull()) |
| return 1; |
| } |
| return borderWidth; |
| } |
| |
| void HTMLElement::applyBorderAttributeToStyle(const AtomicString& value, |
| MutableStylePropertySet* style) { |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyBorderWidth, |
| parseBorderWidthAttribute(value), |
| CSSPrimitiveValue::UnitType::Pixels); |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyBorderStyle, |
| CSSValueSolid); |
| } |
| |
| void HTMLElement::mapLanguageAttributeToLocale(const AtomicString& value, |
| MutableStylePropertySet* style) { |
| if (!value.isEmpty()) { |
| // Have to quote so the locale id is treated as a string instead of as a CSS |
| // keyword. |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLocale, |
| serializeString(value)); |
| |
| // FIXME: Remove the following UseCounter code when we collect enough |
| // data. |
| UseCounter::count(document(), UseCounter::LangAttribute); |
| if (isHTMLHtmlElement(*this)) |
| UseCounter::count(document(), UseCounter::LangAttributeOnHTML); |
| else if (isHTMLBodyElement(*this)) |
| UseCounter::count(document(), UseCounter::LangAttributeOnBody); |
| String htmlLanguage = value.getString(); |
| size_t firstSeparator = htmlLanguage.find('-'); |
| if (firstSeparator != kNotFound) |
| htmlLanguage = htmlLanguage.left(firstSeparator); |
| String uiLanguage = defaultLanguage(); |
| firstSeparator = uiLanguage.find('-'); |
| if (firstSeparator != kNotFound) |
| uiLanguage = uiLanguage.left(firstSeparator); |
| firstSeparator = uiLanguage.find('_'); |
| if (firstSeparator != kNotFound) |
| uiLanguage = uiLanguage.left(firstSeparator); |
| if (!equalIgnoringCase(htmlLanguage, uiLanguage)) |
| UseCounter::count(document(), |
| UseCounter::LangAttributeDoesNotMatchToUILocale); |
| } else { |
| // The empty string means the language is explicitly unknown. |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLocale, |
| CSSValueAuto); |
| } |
| } |
| |
| bool HTMLElement::isPresentationAttribute(const QualifiedName& name) const { |
| if (name == alignAttr || name == contenteditableAttr || name == hiddenAttr || |
| name == langAttr || name.matches(XMLNames::langAttr) || |
| name == draggableAttr || name == dirAttr) |
| return true; |
| return Element::isPresentationAttribute(name); |
| } |
| |
| static inline bool isValidDirAttribute(const AtomicString& value) { |
| return equalIgnoringCase(value, "auto") || equalIgnoringCase(value, "ltr") || |
| equalIgnoringCase(value, "rtl"); |
| } |
| |
| void HTMLElement::collectStyleForPresentationAttribute( |
| const QualifiedName& name, |
| const AtomicString& value, |
| MutableStylePropertySet* style) { |
| if (name == alignAttr) { |
| if (equalIgnoringCase(value, "middle")) |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyTextAlign, |
| CSSValueCenter); |
| else |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyTextAlign, |
| value); |
| } else if (name == contenteditableAttr) { |
| if (value.isEmpty() || equalIgnoringCase(value, "true")) { |
| addPropertyToPresentationAttributeStyle( |
| style, CSSPropertyWebkitUserModify, CSSValueReadWrite); |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWordWrap, |
| CSSValueBreakWord); |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLineBreak, |
| CSSValueAfterWhiteSpace); |
| UseCounter::count(document(), UseCounter::ContentEditableTrue); |
| if (hasTagName(htmlTag)) |
| UseCounter::count(document(), UseCounter::ContentEditableTrueOnHTML); |
| } else if (equalIgnoringCase(value, "plaintext-only")) { |
| addPropertyToPresentationAttributeStyle( |
| style, CSSPropertyWebkitUserModify, CSSValueReadWritePlaintextOnly); |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWordWrap, |
| CSSValueBreakWord); |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLineBreak, |
| CSSValueAfterWhiteSpace); |
| UseCounter::count(document(), UseCounter::ContentEditablePlainTextOnly); |
| } else if (equalIgnoringCase(value, "false")) { |
| addPropertyToPresentationAttributeStyle( |
| style, CSSPropertyWebkitUserModify, CSSValueReadOnly); |
| } |
| } else if (name == hiddenAttr) { |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyDisplay, |
| CSSValueNone); |
| } else if (name == draggableAttr) { |
| UseCounter::count(document(), UseCounter::DraggableAttribute); |
| if (equalIgnoringCase(value, "true")) { |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserDrag, |
| CSSValueElement); |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyUserSelect, |
| CSSValueNone); |
| } else if (equalIgnoringCase(value, "false")) { |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserDrag, |
| CSSValueNone); |
| } |
| } else if (name == dirAttr) { |
| if (equalIgnoringCase(value, "auto")) { |
| addPropertyToPresentationAttributeStyle( |
| style, CSSPropertyUnicodeBidi, unicodeBidiAttributeForDirAuto(this)); |
| } else { |
| if (isValidDirAttribute(value)) |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyDirection, |
| value); |
| else if (isHTMLBodyElement(*this)) |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyDirection, |
| "ltr"); |
| if (!hasTagName(bdiTag) && !hasTagName(bdoTag) && !hasTagName(outputTag)) |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyUnicodeBidi, |
| CSSValueIsolate); |
| } |
| } else if (name.matches(XMLNames::langAttr)) { |
| mapLanguageAttributeToLocale(value, style); |
| } else if (name == langAttr) { |
| // xml:lang has a higher priority than lang. |
| if (!fastHasAttribute(XMLNames::langAttr)) |
| mapLanguageAttributeToLocale(value, style); |
| } else { |
| Element::collectStyleForPresentationAttribute(name, value, style); |
| } |
| } |
| |
| const AtomicString& HTMLElement::eventNameForAttributeName( |
| const QualifiedName& attrName) { |
| if (!attrName.namespaceURI().isNull()) |
| return nullAtom; |
| |
| if (!attrName.localName().startsWith("on", TextCaseInsensitive)) |
| return nullAtom; |
| |
| typedef HashMap<AtomicString, AtomicString> StringToStringMap; |
| DEFINE_STATIC_LOCAL(StringToStringMap, attributeNameToEventNameMap, ()); |
| if (!attributeNameToEventNameMap.size()) { |
| struct AttrToEventName { |
| const QualifiedName& attr; |
| const AtomicString& event; |
| }; |
| AttrToEventName attrToEventNames[] = { |
| {onabortAttr, EventTypeNames::abort}, |
| {onanimationendAttr, EventTypeNames::animationend}, |
| {onanimationiterationAttr, EventTypeNames::animationiteration}, |
| {onanimationstartAttr, EventTypeNames::animationstart}, |
| {onbeforecopyAttr, EventTypeNames::beforecopy}, |
| {onbeforecutAttr, EventTypeNames::beforecut}, |
| {onbeforepasteAttr, EventTypeNames::beforepaste}, |
| {onblurAttr, EventTypeNames::blur}, |
| {oncancelAttr, EventTypeNames::cancel}, |
| {oncanplayAttr, EventTypeNames::canplay}, |
| {oncanplaythroughAttr, EventTypeNames::canplaythrough}, |
| {onchangeAttr, EventTypeNames::change}, |
| {onclickAttr, EventTypeNames::click}, |
| {oncloseAttr, EventTypeNames::close}, |
| {oncontextmenuAttr, EventTypeNames::contextmenu}, |
| {oncopyAttr, EventTypeNames::copy}, |
| {oncuechangeAttr, EventTypeNames::cuechange}, |
| {oncutAttr, EventTypeNames::cut}, |
| {ondblclickAttr, EventTypeNames::dblclick}, |
| {ondragAttr, EventTypeNames::drag}, |
| {ondragendAttr, EventTypeNames::dragend}, |
| {ondragenterAttr, EventTypeNames::dragenter}, |
| {ondragleaveAttr, EventTypeNames::dragleave}, |
| {ondragoverAttr, EventTypeNames::dragover}, |
| {ondragstartAttr, EventTypeNames::dragstart}, |
| {ondropAttr, EventTypeNames::drop}, |
| {ondurationchangeAttr, EventTypeNames::durationchange}, |
| {onemptiedAttr, EventTypeNames::emptied}, |
| {onendedAttr, EventTypeNames::ended}, |
| {onerrorAttr, EventTypeNames::error}, |
| {onfocusAttr, EventTypeNames::focus}, |
| {onfocusinAttr, EventTypeNames::focusin}, |
| {onfocusoutAttr, EventTypeNames::focusout}, |
| {ongotpointercaptureAttr, EventTypeNames::gotpointercapture}, |
| {oninputAttr, EventTypeNames::input}, |
| {oninvalidAttr, EventTypeNames::invalid}, |
| {onkeydownAttr, EventTypeNames::keydown}, |
| {onkeypressAttr, EventTypeNames::keypress}, |
| {onkeyupAttr, EventTypeNames::keyup}, |
| {onloadAttr, EventTypeNames::load}, |
| {onloadeddataAttr, EventTypeNames::loadeddata}, |
| {onloadedmetadataAttr, EventTypeNames::loadedmetadata}, |
| {onloadstartAttr, EventTypeNames::loadstart}, |
| {onlostpointercaptureAttr, EventTypeNames::lostpointercapture}, |
| {onmousedownAttr, EventTypeNames::mousedown}, |
| {onmouseenterAttr, EventTypeNames::mouseenter}, |
| {onmouseleaveAttr, EventTypeNames::mouseleave}, |
| {onmousemoveAttr, EventTypeNames::mousemove}, |
| {onmouseoutAttr, EventTypeNames::mouseout}, |
| {onmouseoverAttr, EventTypeNames::mouseover}, |
| {onmouseupAttr, EventTypeNames::mouseup}, |
| {onmousewheelAttr, EventTypeNames::mousewheel}, |
| {onpasteAttr, EventTypeNames::paste}, |
| {onpauseAttr, EventTypeNames::pause}, |
| {onplayAttr, EventTypeNames::play}, |
| {onplayingAttr, EventTypeNames::playing}, |
| {onprogressAttr, EventTypeNames::progress}, |
| {onratechangeAttr, EventTypeNames::ratechange}, |
| {onresetAttr, EventTypeNames::reset}, |
| {onresizeAttr, EventTypeNames::resize}, |
| {onscrollAttr, EventTypeNames::scroll}, |
| {onseekedAttr, EventTypeNames::seeked}, |
| {onseekingAttr, EventTypeNames::seeking}, |
| {onselectAttr, EventTypeNames::select}, |
| {onselectstartAttr, EventTypeNames::selectstart}, |
| {onshowAttr, EventTypeNames::show}, |
| {onstalledAttr, EventTypeNames::stalled}, |
| {onsubmitAttr, EventTypeNames::submit}, |
| {onsuspendAttr, EventTypeNames::suspend}, |
| {ontimeupdateAttr, EventTypeNames::timeupdate}, |
| {ontoggleAttr, EventTypeNames::toggle}, |
| {ontouchcancelAttr, EventTypeNames::touchcancel}, |
| {ontouchendAttr, EventTypeNames::touchend}, |
| {ontouchmoveAttr, EventTypeNames::touchmove}, |
| {ontouchstartAttr, EventTypeNames::touchstart}, |
| {ontransitionendAttr, EventTypeNames::webkitTransitionEnd}, |
| {onvolumechangeAttr, EventTypeNames::volumechange}, |
| {onwaitingAttr, EventTypeNames::waiting}, |
| {onwebkitanimationendAttr, EventTypeNames::webkitAnimationEnd}, |
| {onwebkitanimationiterationAttr, |
| EventTypeNames::webkitAnimationIteration}, |
| {onwebkitanimationstartAttr, EventTypeNames::webkitAnimationStart}, |
| {onwebkitfullscreenchangeAttr, EventTypeNames::webkitfullscreenchange}, |
| {onwebkitfullscreenerrorAttr, EventTypeNames::webkitfullscreenerror}, |
| {onwebkittransitionendAttr, EventTypeNames::webkitTransitionEnd}, |
| {onwheelAttr, EventTypeNames::wheel}, |
| }; |
| |
| for (size_t i = 0; i < WTF_ARRAY_LENGTH(attrToEventNames); i++) |
| attributeNameToEventNameMap.set(attrToEventNames[i].attr.localName(), |
| attrToEventNames[i].event); |
| } |
| |
| return attributeNameToEventNameMap.get(attrName.localName()); |
| } |
| |
| void HTMLElement::parseAttribute(const QualifiedName& name, |
| const AtomicString& oldValue, |
| const AtomicString& value) { |
| if (name == tabindexAttr || name == XMLNames::langAttr) |
| return Element::parseAttribute(name, oldValue, value); |
| |
| if (name == dirAttr) { |
| dirAttributeChanged(value); |
| } else if (name == langAttr) { |
| pseudoStateChanged(CSSSelector::PseudoLang); |
| } else { |
| const AtomicString& eventName = eventNameForAttributeName(name); |
| if (!eventName.isNull()) |
| setAttributeEventListener( |
| eventName, createAttributeEventListener(this, name, value, |
| eventParameterName())); |
| } |
| } |
| |
| DocumentFragment* HTMLElement::textToFragment(const String& text, |
| ExceptionState& exceptionState) { |
| DocumentFragment* fragment = DocumentFragment::create(document()); |
| unsigned i, length = text.length(); |
| UChar c = 0; |
| for (unsigned start = 0; start < length;) { |
| // Find next line break. |
| for (i = start; i < length; i++) { |
| c = text[i]; |
| if (c == '\r' || c == '\n') |
| break; |
| } |
| |
| fragment->appendChild( |
| Text::create(document(), text.substring(start, i - start)), |
| exceptionState); |
| if (exceptionState.hadException()) |
| return nullptr; |
| |
| if (c == '\r' || c == '\n') { |
| fragment->appendChild(HTMLBRElement::create(document()), exceptionState); |
| if (exceptionState.hadException()) |
| return nullptr; |
| // Make sure \r\n doesn't result in two line breaks. |
| if (c == '\r' && i + 1 < length && text[i + 1] == '\n') |
| i++; |
| } |
| |
| start = i + 1; // Character after line break. |
| } |
| |
| return fragment; |
| } |
| |
| static inline bool shouldProhibitSetInnerOuterText(const HTMLElement& element) { |
| return element.hasTagName(colTag) || element.hasTagName(colgroupTag) || |
| element.hasTagName(framesetTag) || element.hasTagName(headTag) || |
| element.hasTagName(htmlTag) || element.hasTagName(tableTag) || |
| element.hasTagName(tbodyTag) || element.hasTagName(tfootTag) || |
| element.hasTagName(theadTag) || element.hasTagName(trTag); |
| } |
| |
| void HTMLElement::setInnerText(const String& text, |
| ExceptionState& exceptionState) { |
| if (ieForbidsInsertHTML()) { |
| exceptionState.throwDOMException( |
| NoModificationAllowedError, |
| "The '" + localName() + "' element does not support text insertion."); |
| return; |
| } |
| if (shouldProhibitSetInnerOuterText(*this)) { |
| exceptionState.throwDOMException( |
| NoModificationAllowedError, |
| "The '" + localName() + "' element does not support text insertion."); |
| return; |
| } |
| |
| // FIXME: This doesn't take whitespace collapsing into account at all. |
| |
| if (!text.contains('\n') && !text.contains('\r')) { |
| if (text.isEmpty()) { |
| removeChildren(); |
| return; |
| } |
| replaceChildrenWithText(this, text, exceptionState); |
| return; |
| } |
| |
| // FIXME: Do we need to be able to detect preserveNewline style even when |
| // there's no layoutObject? |
| // FIXME: Can the layoutObject be out of date here? Do we need to call |
| // updateStyleIfNeeded? For example, for the contents of textarea elements |
| // that are display:none? |
| LayoutObject* r = layoutObject(); |
| if (r && r->style()->preserveNewline()) { |
| if (!text.contains('\r')) { |
| replaceChildrenWithText(this, text, exceptionState); |
| return; |
| } |
| String textWithConsistentLineBreaks = text; |
| textWithConsistentLineBreaks.replace("\r\n", "\n"); |
| textWithConsistentLineBreaks.replace('\r', '\n'); |
| replaceChildrenWithText(this, textWithConsistentLineBreaks, exceptionState); |
| return; |
| } |
| |
| // Add text nodes and <br> elements. |
| DocumentFragment* fragment = textToFragment(text, exceptionState); |
| if (!exceptionState.hadException()) |
| replaceChildrenWithFragment(this, fragment, exceptionState); |
| } |
| |
| void HTMLElement::setOuterText(const String& text, |
| ExceptionState& exceptionState) { |
| if (ieForbidsInsertHTML()) { |
| exceptionState.throwDOMException( |
| NoModificationAllowedError, |
| "The '" + localName() + "' element does not support text insertion."); |
| return; |
| } |
| if (shouldProhibitSetInnerOuterText(*this)) { |
| exceptionState.throwDOMException( |
| NoModificationAllowedError, |
| "The '" + localName() + "' element does not support text insertion."); |
| return; |
| } |
| |
| ContainerNode* parent = parentNode(); |
| if (!parent) { |
| exceptionState.throwDOMException(NoModificationAllowedError, |
| "The element has no parent."); |
| return; |
| } |
| |
| Node* prev = previousSibling(); |
| Node* next = nextSibling(); |
| Node* newChild = nullptr; |
| |
| // Convert text to fragment with <br> tags instead of linebreaks if needed. |
| if (text.contains('\r') || text.contains('\n')) |
| newChild = textToFragment(text, exceptionState); |
| else |
| newChild = Text::create(document(), text); |
| |
| // textToFragment might cause mutation events. |
| if (!parentNode()) |
| exceptionState.throwDOMException(HierarchyRequestError, |
| "The element has no parent."); |
| |
| if (exceptionState.hadException()) |
| return; |
| |
| parent->replaceChild(newChild, this, exceptionState); |
| |
| Node* node = next ? next->previousSibling() : nullptr; |
| if (!exceptionState.hadException() && node && node->isTextNode()) |
| mergeWithNextTextNode(toText(node), exceptionState); |
| |
| if (!exceptionState.hadException() && prev && prev->isTextNode()) |
| mergeWithNextTextNode(toText(prev), exceptionState); |
| } |
| |
| void HTMLElement::applyAlignmentAttributeToStyle( |
| const AtomicString& alignment, |
| MutableStylePropertySet* style) { |
| // Vertical alignment with respect to the current baseline of the text |
| // right or left means floating images. |
| CSSValueID floatValue = CSSValueInvalid; |
| CSSValueID verticalAlignValue = CSSValueInvalid; |
| |
| if (equalIgnoringCase(alignment, "absmiddle")) { |
| verticalAlignValue = CSSValueMiddle; |
| } else if (equalIgnoringCase(alignment, "absbottom")) { |
| verticalAlignValue = CSSValueBottom; |
| } else if (equalIgnoringCase(alignment, "left")) { |
| floatValue = CSSValueLeft; |
| verticalAlignValue = CSSValueTop; |
| } else if (equalIgnoringCase(alignment, "right")) { |
| floatValue = CSSValueRight; |
| verticalAlignValue = CSSValueTop; |
| } else if (equalIgnoringCase(alignment, "top")) { |
| verticalAlignValue = CSSValueTop; |
| } else if (equalIgnoringCase(alignment, "middle")) { |
| verticalAlignValue = CSSValueWebkitBaselineMiddle; |
| } else if (equalIgnoringCase(alignment, "center")) { |
| verticalAlignValue = CSSValueMiddle; |
| } else if (equalIgnoringCase(alignment, "bottom")) { |
| verticalAlignValue = CSSValueBaseline; |
| } else if (equalIgnoringCase(alignment, "texttop")) { |
| verticalAlignValue = CSSValueTextTop; |
| } |
| |
| if (floatValue != CSSValueInvalid) |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyFloat, |
| floatValue); |
| |
| if (verticalAlignValue != CSSValueInvalid) |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyVerticalAlign, |
| verticalAlignValue); |
| } |
| |
| bool HTMLElement::hasCustomFocusLogic() const { |
| return false; |
| } |
| |
| String HTMLElement::contentEditable() const { |
| const AtomicString& value = fastGetAttribute(contenteditableAttr); |
| |
| if (value.isNull()) |
| return "inherit"; |
| if (value.isEmpty() || equalIgnoringCase(value, "true")) |
| return "true"; |
| if (equalIgnoringCase(value, "false")) |
| return "false"; |
| if (equalIgnoringCase(value, "plaintext-only")) |
| return "plaintext-only"; |
| |
| return "inherit"; |
| } |
| |
| void HTMLElement::setContentEditable(const String& enabled, |
| ExceptionState& exceptionState) { |
| if (equalIgnoringCase(enabled, "true")) |
| setAttribute(contenteditableAttr, "true"); |
| else if (equalIgnoringCase(enabled, "false")) |
| setAttribute(contenteditableAttr, "false"); |
| else if (equalIgnoringCase(enabled, "plaintext-only")) |
| setAttribute(contenteditableAttr, "plaintext-only"); |
| else if (equalIgnoringCase(enabled, "inherit")) |
| removeAttribute(contenteditableAttr); |
| else |
| exceptionState.throwDOMException(SyntaxError, |
| "The value provided ('" + enabled + |
| "') is not one of 'true', 'false', " |
| "'plaintext-only', or 'inherit'."); |
| } |
| |
| bool HTMLElement::isContentEditableForBinding() const { |
| return isEditingHost(*this) || isEditable(*this); |
| } |
| |
| bool HTMLElement::draggable() const { |
| return equalIgnoringCase(getAttribute(draggableAttr), "true"); |
| } |
| |
| void HTMLElement::setDraggable(bool value) { |
| setAttribute(draggableAttr, value ? "true" : "false"); |
| } |
| |
| bool HTMLElement::spellcheck() const { |
| return isSpellCheckingEnabled(); |
| } |
| |
| void HTMLElement::setSpellcheck(bool enable) { |
| setAttribute(spellcheckAttr, enable ? "true" : "false"); |
| } |
| |
| void HTMLElement::clickForBindings() { |
| dispatchSimulatedClick(0, SendNoEvents, |
| SimulatedClickCreationScope::FromScript); |
| } |
| |
| void HTMLElement::accessKeyAction(bool sendMouseEvents) { |
| dispatchSimulatedClick( |
| 0, sendMouseEvents ? SendMouseUpDownEvents : SendNoEvents); |
| } |
| |
| String HTMLElement::title() const { |
| return fastGetAttribute(titleAttr); |
| } |
| |
| short HTMLElement::tabIndex() const { |
| if (supportsFocus()) |
| return Element::tabIndex(); |
| return -1; |
| } |
| |
| TranslateAttributeMode HTMLElement::translateAttributeMode() const { |
| const AtomicString& value = getAttribute(translateAttr); |
| |
| if (value == nullAtom) |
| return TranslateAttributeInherit; |
| if (equalIgnoringCase(value, "yes") || equalIgnoringCase(value, "")) |
| return TranslateAttributeYes; |
| if (equalIgnoringCase(value, "no")) |
| return TranslateAttributeNo; |
| |
| return TranslateAttributeInherit; |
| } |
| |
| bool HTMLElement::translate() const { |
| for (const HTMLElement* element = this; element; |
| element = Traversal<HTMLElement>::firstAncestor(*element)) { |
| TranslateAttributeMode mode = element->translateAttributeMode(); |
| if (mode != TranslateAttributeInherit) { |
| DCHECK(mode == TranslateAttributeYes || mode == TranslateAttributeNo); |
| return mode == TranslateAttributeYes; |
| } |
| } |
| |
| // Default on the root element is translate=yes. |
| return true; |
| } |
| |
| void HTMLElement::setTranslate(bool enable) { |
| setAttribute(translateAttr, enable ? "yes" : "no"); |
| } |
| |
| // Returns the conforming 'dir' value associated with the state the attribute is |
| // in (in its canonical case), if any, or the empty string if the attribute is |
| // in a state that has no associated keyword value or if the attribute is not in |
| // a defined state (e.g. the attribute is missing and there is no missing value |
| // default). |
| // http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#limited-to-only-known-values |
| static inline const AtomicString& toValidDirValue(const AtomicString& value) { |
| DEFINE_STATIC_LOCAL(const AtomicString, ltrValue, ("ltr")); |
| DEFINE_STATIC_LOCAL(const AtomicString, rtlValue, ("rtl")); |
| DEFINE_STATIC_LOCAL(const AtomicString, autoValue, ("auto")); |
| |
| if (equalIgnoringCase(value, ltrValue)) |
| return ltrValue; |
| if (equalIgnoringCase(value, rtlValue)) |
| return rtlValue; |
| if (equalIgnoringCase(value, autoValue)) |
| return autoValue; |
| return nullAtom; |
| } |
| |
| const AtomicString& HTMLElement::dir() { |
| return toValidDirValue(fastGetAttribute(dirAttr)); |
| } |
| |
| void HTMLElement::setDir(const AtomicString& value) { |
| setAttribute(dirAttr, value); |
| } |
| |
| HTMLFormElement* HTMLElement::findFormAncestor() const { |
| return Traversal<HTMLFormElement>::firstAncestor(*this); |
| } |
| |
| static inline bool elementAffectsDirectionality(const Node* node) { |
| return node->isHTMLElement() && (isHTMLBDIElement(toHTMLElement(*node)) || |
| toHTMLElement(*node).hasAttribute(dirAttr)); |
| } |
| |
| void HTMLElement::childrenChanged(const ChildrenChange& change) { |
| Element::childrenChanged(change); |
| adjustDirectionalityIfNeededAfterChildrenChanged(change); |
| } |
| |
| bool HTMLElement::hasDirectionAuto() const { |
| // <bdi> defaults to dir="auto" |
| // https://html.spec.whatwg.org/multipage/semantics.html#the-bdi-element |
| const AtomicString& direction = fastGetAttribute(dirAttr); |
| return (isHTMLBDIElement(*this) && direction == nullAtom) || |
| equalIgnoringCase(direction, "auto"); |
| } |
| |
| TextDirection HTMLElement::directionalityIfhasDirAutoAttribute( |
| bool& isAuto) const { |
| isAuto = hasDirectionAuto(); |
| if (!isAuto) |
| return LTR; |
| return directionality(); |
| } |
| |
| TextDirection HTMLElement::directionality( |
| Node** strongDirectionalityTextNode) const { |
| if (isHTMLInputElement(*this)) { |
| HTMLInputElement* inputElement = |
| toHTMLInputElement(const_cast<HTMLElement*>(this)); |
| bool hasStrongDirectionality; |
| TextDirection textDirection = determineDirectionality( |
| inputElement->value(), &hasStrongDirectionality); |
| if (strongDirectionalityTextNode) |
| *strongDirectionalityTextNode = |
| hasStrongDirectionality ? inputElement : 0; |
| return textDirection; |
| } |
| |
| Node* node = FlatTreeTraversal::firstChild(*this); |
| while (node) { |
| // Skip bdi, script, style and text form controls. |
| if (equalIgnoringCase(node->nodeName(), "bdi") || |
| isHTMLScriptElement(*node) || isHTMLStyleElement(*node) || |
| (node->isElementNode() && toElement(node)->isTextFormControl()) || |
| (node->isElementNode() && |
| toElement(node)->shadowPseudoId() == "-webkit-input-placeholder")) { |
| node = FlatTreeTraversal::nextSkippingChildren(*node, this); |
| continue; |
| } |
| |
| // Skip elements with valid dir attribute |
| if (node->isElementNode()) { |
| AtomicString dirAttributeValue = |
| toElement(node)->fastGetAttribute(dirAttr); |
| if (isValidDirAttribute(dirAttributeValue)) { |
| node = FlatTreeTraversal::nextSkippingChildren(*node, this); |
| continue; |
| } |
| } |
| |
| if (node->isTextNode()) { |
| bool hasStrongDirectionality; |
| TextDirection textDirection = determineDirectionality( |
| node->textContent(true), &hasStrongDirectionality); |
| if (hasStrongDirectionality) { |
| if (strongDirectionalityTextNode) |
| *strongDirectionalityTextNode = node; |
| return textDirection; |
| } |
| } |
| node = FlatTreeTraversal::next(*node, this); |
| } |
| if (strongDirectionalityTextNode) |
| *strongDirectionalityTextNode = 0; |
| return LTR; |
| } |
| |
| bool HTMLElement::selfOrAncestorHasDirAutoAttribute() const { |
| return layoutObject() && layoutObject()->style() && |
| layoutObject()->style()->selfOrAncestorHasDirAutoAttribute(); |
| } |
| |
| void HTMLElement::dirAttributeChanged(const AtomicString& value) { |
| // If an ancestor has dir=auto, and this node has the first character, |
| // changes to dir attribute may affect the ancestor. |
| if (!canParticipateInFlatTree()) |
| return; |
| updateDistribution(); |
| Element* parent = FlatTreeTraversal::parentElement(*this); |
| if (parent && parent->isHTMLElement() && |
| toHTMLElement(parent)->selfOrAncestorHasDirAutoAttribute()) |
| toHTMLElement(parent) |
| ->adjustDirectionalityIfNeededAfterChildAttributeChanged(this); |
| |
| if (equalIgnoringCase(value, "auto")) |
| calculateAndAdjustDirectionality(); |
| } |
| |
| void HTMLElement::adjustDirectionalityIfNeededAfterChildAttributeChanged( |
| Element* child) { |
| DCHECK(selfOrAncestorHasDirAutoAttribute()); |
| TextDirection textDirection = directionality(); |
| if (layoutObject() && layoutObject()->style() && |
| layoutObject()->style()->direction() != textDirection) { |
| Element* elementToAdjust = this; |
| for (; elementToAdjust; |
| elementToAdjust = FlatTreeTraversal::parentElement(*elementToAdjust)) { |
| if (elementAffectsDirectionality(elementToAdjust)) { |
| elementToAdjust->setNeedsStyleRecalc( |
| LocalStyleChange, StyleChangeReasonForTracing::create( |
| StyleChangeReason::WritingModeChange)); |
| return; |
| } |
| } |
| } |
| } |
| |
| void HTMLElement::calculateAndAdjustDirectionality() { |
| TextDirection textDirection = directionality(); |
| if (layoutObject() && layoutObject()->style() && |
| layoutObject()->style()->direction() != textDirection) |
| setNeedsStyleRecalc(LocalStyleChange, |
| StyleChangeReasonForTracing::create( |
| StyleChangeReason::WritingModeChange)); |
| } |
| |
| void HTMLElement::adjustDirectionalityIfNeededAfterChildrenChanged( |
| const ChildrenChange& change) { |
| if (!selfOrAncestorHasDirAutoAttribute()) |
| return; |
| |
| updateDistribution(); |
| |
| for (Element* elementToAdjust = this; elementToAdjust; |
| elementToAdjust = FlatTreeTraversal::parentElement(*elementToAdjust)) { |
| if (elementAffectsDirectionality(elementToAdjust)) { |
| toHTMLElement(elementToAdjust)->calculateAndAdjustDirectionality(); |
| return; |
| } |
| } |
| } |
| |
| void HTMLElement::addHTMLLengthToStyle(MutableStylePropertySet* style, |
| CSSPropertyID propertyID, |
| const String& value) { |
| // FIXME: This function should not spin up the CSS parser, but should instead |
| // just figure out the correct length unit and make the appropriate parsed |
| // value. |
| |
| // strip attribute garbage.. |
| StringImpl* v = value.impl(); |
| if (v) { |
| unsigned length = 0; |
| |
| while (length < v->length() && (*v)[length] <= ' ') |
| length++; |
| |
| for (; length < v->length(); length++) { |
| UChar cc = (*v)[length]; |
| if (cc > '9') |
| break; |
| if (cc < '0') { |
| if (cc == '%' || cc == '*') { |
| if (propertyID == CSSPropertyWidth) |
| UseCounter::count(document(), |
| UseCounter::HTMLElementDeprecatedWidth); |
| length++; |
| } |
| if (cc != '.') |
| break; |
| } |
| } |
| |
| if (length != v->length()) { |
| addPropertyToPresentationAttributeStyle(style, propertyID, |
| v->substring(0, length)); |
| return; |
| } |
| } |
| |
| addPropertyToPresentationAttributeStyle(style, propertyID, value); |
| } |
| |
| static RGBA32 parseColorStringWithCrazyLegacyRules(const String& colorString) { |
| // Per spec, only look at the first 128 digits of the string. |
| const size_t maxColorLength = 128; |
| // We'll pad the buffer with two extra 0s later, so reserve two more than the |
| // max. |
| Vector<char, maxColorLength + 2> digitBuffer; |
| |
| size_t i = 0; |
| // Skip a leading #. |
| if (colorString[0] == '#') |
| i = 1; |
| |
| // Grab the first 128 characters, replacing non-hex characters with 0. |
| // Non-BMP characters are replaced with "00" due to them appearing as two |
| // "characters" in the String. |
| for (; i < colorString.length() && digitBuffer.size() < maxColorLength; i++) { |
| if (!isASCIIHexDigit(colorString[i])) |
| digitBuffer.append('0'); |
| else |
| digitBuffer.append(colorString[i]); |
| } |
| |
| if (!digitBuffer.size()) |
| return Color::black; |
| |
| // Pad the buffer out to at least the next multiple of three in size. |
| digitBuffer.append('0'); |
| digitBuffer.append('0'); |
| |
| if (digitBuffer.size() < 6) |
| return makeRGB(toASCIIHexValue(digitBuffer[0]), |
| toASCIIHexValue(digitBuffer[1]), |
| toASCIIHexValue(digitBuffer[2])); |
| |
| // Split the digits into three components, then search the last 8 digits of |
| // each component. |
| DCHECK_GE(digitBuffer.size(), 6u); |
| size_t componentLength = digitBuffer.size() / 3; |
| size_t componentSearchWindowLength = min<size_t>(componentLength, 8); |
| size_t redIndex = componentLength - componentSearchWindowLength; |
| size_t greenIndex = componentLength * 2 - componentSearchWindowLength; |
| size_t blueIndex = componentLength * 3 - componentSearchWindowLength; |
| // Skip digits until one of them is non-zero, or we've only got two digits |
| // left in the component. |
| while (digitBuffer[redIndex] == '0' && digitBuffer[greenIndex] == '0' && |
| digitBuffer[blueIndex] == '0' && (componentLength - redIndex) > 2) { |
| redIndex++; |
| greenIndex++; |
| blueIndex++; |
| } |
| DCHECK_LT(redIndex + 1, componentLength); |
| DCHECK_GE(greenIndex, componentLength); |
| DCHECK_LT(greenIndex + 1, componentLength * 2); |
| DCHECK_GE(blueIndex, componentLength * 2); |
| SECURITY_DCHECK(blueIndex + 1 < digitBuffer.size()); |
| |
| int redValue = |
| toASCIIHexValue(digitBuffer[redIndex], digitBuffer[redIndex + 1]); |
| int greenValue = |
| toASCIIHexValue(digitBuffer[greenIndex], digitBuffer[greenIndex + 1]); |
| int blueValue = |
| toASCIIHexValue(digitBuffer[blueIndex], digitBuffer[blueIndex + 1]); |
| return makeRGB(redValue, greenValue, blueValue); |
| } |
| |
| // Color parsing that matches HTML's "rules for parsing a legacy color value" |
| bool HTMLElement::parseColorWithLegacyRules(const String& attributeValue, |
| Color& parsedColor) { |
| // An empty string doesn't apply a color. (One containing only whitespace |
| // does, which is why this check occurs before stripping.) |
| if (attributeValue.isEmpty()) |
| return false; |
| |
| String colorString = attributeValue.stripWhiteSpace(); |
| |
| // "transparent" doesn't apply a color either. |
| if (equalIgnoringCase(colorString, "transparent")) |
| return false; |
| |
| // If the string is a 3/6-digit hex color or a named CSS color, use that. |
| // Apply legacy rules otherwise. Note color.setFromString() accepts 4/8-digit |
| // hex color, so restrict its use with length checks here to support legacy |
| // HTML attributes. |
| |
| bool success = false; |
| if ((colorString.length() == 4 || colorString.length() == 7) && |
| colorString[0] == '#') |
| success = parsedColor.setFromString(colorString); |
| if (!success) |
| success = parsedColor.setNamedColor(colorString); |
| if (!success) { |
| parsedColor.setRGB(parseColorStringWithCrazyLegacyRules(colorString)); |
| success = true; |
| } |
| |
| return success; |
| } |
| |
| void HTMLElement::addHTMLColorToStyle(MutableStylePropertySet* style, |
| CSSPropertyID propertyID, |
| const String& attributeValue) { |
| Color parsedColor; |
| if (!parseColorWithLegacyRules(attributeValue, parsedColor)) |
| return; |
| |
| style->setProperty(propertyID, *CSSColorValue::create(parsedColor.rgb())); |
| } |
| |
| bool HTMLElement::isInteractiveContent() const { |
| return false; |
| } |
| |
| HTMLMenuElement* HTMLElement::assignedContextMenu() const { |
| if (HTMLMenuElement* menu = contextMenu()) |
| return menu; |
| |
| return parentElement() && parentElement()->isHTMLElement() |
| ? toHTMLElement(parentElement())->assignedContextMenu() |
| : nullptr; |
| } |
| |
| HTMLMenuElement* HTMLElement::contextMenu() const { |
| const AtomicString& contextMenuId(fastGetAttribute(contextmenuAttr)); |
| if (contextMenuId.isNull()) |
| return nullptr; |
| |
| Element* element = treeScope().getElementById(contextMenuId); |
| // Not checking if the menu element is of type "popup". |
| // Ignoring menu element type attribute is intentional according to the |
| // standard. |
| return isHTMLMenuElement(element) ? toHTMLMenuElement(element) : nullptr; |
| } |
| |
| void HTMLElement::setContextMenu(HTMLMenuElement* contextMenu) { |
| if (!contextMenu) { |
| setAttribute(contextmenuAttr, ""); |
| return; |
| } |
| |
| // http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#reflecting-content-attributes-in-idl-attributes |
| // On setting, if the given element has an id attribute, and has the same home |
| // subtree as the element of the attribute being set, and the given element is |
| // the first element in that home subtree whose ID is the value of that id |
| // attribute, then the content attribute must be set to the value of that id |
| // attribute. Otherwise, the content attribute must be set to the empty |
| // string. |
| const AtomicString& contextMenuId(contextMenu->fastGetAttribute(idAttr)); |
| |
| if (!contextMenuId.isNull() && |
| contextMenu == treeScope().getElementById(contextMenuId)) |
| setAttribute(contextmenuAttr, contextMenuId); |
| else |
| setAttribute(contextmenuAttr, ""); |
| } |
| |
| void HTMLElement::defaultEventHandler(Event* event) { |
| if (event->type() == EventTypeNames::keypress && event->isKeyboardEvent()) { |
| handleKeypressEvent(toKeyboardEvent(event)); |
| if (event->defaultHandled()) |
| return; |
| } |
| |
| Element::defaultEventHandler(event); |
| } |
| |
| bool HTMLElement::matchesReadOnlyPseudoClass() const { |
| return !matchesReadWritePseudoClass(); |
| } |
| |
| bool HTMLElement::matchesReadWritePseudoClass() const { |
| if (fastHasAttribute(contenteditableAttr)) { |
| const AtomicString& value = fastGetAttribute(contenteditableAttr); |
| |
| if (value.isEmpty() || equalIgnoringCase(value, "true") || |
| equalIgnoringCase(value, "plaintext-only")) |
| return true; |
| if (equalIgnoringCase(value, "false")) |
| return false; |
| // All other values should be treated as "inherit". |
| } |
| |
| return parentElement() && hasEditableStyle(*parentElement()); |
| } |
| |
| void HTMLElement::handleKeypressEvent(KeyboardEvent* event) { |
| if (!isSpatialNavigationEnabled(document().frame()) || !supportsFocus()) |
| return; |
| document().updateStyleAndLayoutTree(); |
| // if the element is a text form control (like <input type=text> or |
| // <textarea>) or has contentEditable attribute on, we should enter a space or |
| // newline even in spatial navigation mode instead of handling it as a "click" |
| // action. |
| if (isTextFormControl() || hasEditableStyle(*this)) |
| return; |
| int charCode = event->charCode(); |
| if (charCode == '\r' || charCode == ' ') { |
| dispatchSimulatedClick(event); |
| event->setDefaultHandled(); |
| } |
| } |
| |
| const AtomicString& HTMLElement::eventParameterName() { |
| DEFINE_STATIC_LOCAL(const AtomicString, eventString, ("event")); |
| return eventString; |
| } |
| |
| int HTMLElement::offsetLeftForBinding() { |
| Element* offsetParent = unclosedOffsetParent(); |
| if (LayoutBoxModelObject* layoutObject = layoutBoxModelObject()) |
| return adjustLayoutUnitForAbsoluteZoom( |
| LayoutUnit(layoutObject->pixelSnappedOffsetLeft(offsetParent)), |
| layoutObject->styleRef()) |
| .round(); |
| return 0; |
| } |
| |
| int HTMLElement::offsetTopForBinding() { |
| Element* offsetParent = unclosedOffsetParent(); |
| if (LayoutBoxModelObject* layoutObject = layoutBoxModelObject()) |
| return adjustLayoutUnitForAbsoluteZoom( |
| LayoutUnit(layoutObject->pixelSnappedOffsetTop(offsetParent)), |
| layoutObject->styleRef()) |
| .round(); |
| return 0; |
| } |
| |
| int HTMLElement::offsetWidthForBinding() { |
| Element* offsetParent = unclosedOffsetParent(); |
| if (LayoutBoxModelObject* layoutObject = layoutBoxModelObject()) |
| return adjustLayoutUnitForAbsoluteZoom( |
| LayoutUnit(layoutObject->pixelSnappedOffsetWidth(offsetParent)), |
| layoutObject->styleRef()) |
| .round(); |
| return 0; |
| } |
| |
| DISABLE_CFI_PERF |
| int HTMLElement::offsetHeightForBinding() { |
| Element* offsetParent = unclosedOffsetParent(); |
| if (LayoutBoxModelObject* layoutObject = layoutBoxModelObject()) |
| return adjustLayoutUnitForAbsoluteZoom( |
| LayoutUnit(layoutObject->pixelSnappedOffsetHeight(offsetParent)), |
| layoutObject->styleRef()) |
| .round(); |
| return 0; |
| } |
| |
| Element* HTMLElement::unclosedOffsetParent() { |
| document().updateStyleAndLayoutIgnorePendingStylesheetsForNode(this); |
| |
| LayoutObject* layoutObject = this->layoutObject(); |
| if (!layoutObject) |
| return nullptr; |
| |
| return layoutObject->offsetParent(this); |
| } |
| |
| } // namespace blink |
| |
| #ifndef NDEBUG |
| |
| // For use in the debugger |
| void dumpInnerHTML(blink::HTMLElement*); |
| |
| void dumpInnerHTML(blink::HTMLElement* element) { |
| printf("%s\n", element->innerHTML().ascii().data()); |
| } |
| #endif |
