| /* |
| * 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 "config.h" |
| #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/XMLNames.h" |
| #include "core/css/CSSMarkup.h" |
| #include "core/css/CSSValuePool.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/Text.h" |
| #include "core/dom/shadow/ElementShadow.h" |
| #include "core/dom/shadow/ShadowRoot.h" |
| #include "core/editing/markup.h" |
| #include "core/events/EventListener.h" |
| #include "core/events/KeyboardEvent.h" |
| #include "core/frame/Settings.h" |
| #include "core/html/HTMLBRElement.h" |
| #include "core/html/HTMLFormElement.h" |
| #include "core/html/HTMLInputElement.h" |
| #include "core/html/HTMLTemplateElement.h" |
| #include "core/html/HTMLTextFormControlElement.h" |
| #include "core/html/parser/HTMLParserIdioms.h" |
| #include "core/rendering/RenderObject.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 std::min; |
| using std::max; |
| |
| DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(HTMLElement); |
| |
| String HTMLElement::nodeName() const |
| { |
| // 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(linkTag) |
| || (RuntimeEnabledFeatures::contextMenuEnabled() && hasTagName(menuitemTag)) |
| || hasTagName(metaTag) |
| || hasTagName(paramTag) |
| || hasTagName(sourceTag) |
| || 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)) |
| return hasTagName(tableTag) ? 1 : borderWidth; |
| return borderWidth; |
| } |
| |
| void HTMLElement::applyBorderAttributeToStyle(const AtomicString& value, MutableStylePropertySet* style) |
| { |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyBorderWidth, parseBorderWidthAttribute(value), CSSPrimitiveValue::CSS_PX); |
| 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, quoteCSSString(value)); |
| } 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); |
| } else if (equalIgnoringCase(value, "plaintext-only")) { |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserModify, CSSValueReadWritePlaintextOnly); |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWordWrap, CSSValueBreakWord); |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLineBreak, CSSValueAfterWhiteSpace); |
| } else if (equalIgnoringCase(value, "false")) |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserModify, CSSValueReadOnly); |
| } else if (name == hiddenAttr) { |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyDisplay, CSSValueNone); |
| } else if (name == draggableAttr) { |
| if (equalIgnoringCase(value, "true")) { |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserDrag, CSSValueElement); |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserSelect, 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 |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyDirection, "ltr"); |
| if (!hasTagName(bdiTag) && !hasTagName(bdoTag) && !hasTagName(outputTag)) |
| addPropertyToPresentationAttributeStyle(style, CSSPropertyUnicodeBidi, CSSValueEmbed); |
| } |
| } 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", false)) |
| return nullAtom; |
| |
| typedef HashMap<AtomicString, AtomicString> StringToStringMap; |
| DEFINE_STATIC_LOCAL(StringToStringMap, attributeNameToEventNameMap, ()); |
| if (!attributeNameToEventNameMap.size()) { |
| attributeNameToEventNameMap.set(onabortAttr.localName(), EventTypeNames::abort); |
| attributeNameToEventNameMap.set(onanimationendAttr.localName(), EventTypeNames::animationend); |
| attributeNameToEventNameMap.set(onanimationiterationAttr.localName(), EventTypeNames::animationiteration); |
| attributeNameToEventNameMap.set(onanimationstartAttr.localName(), EventTypeNames::animationstart); |
| attributeNameToEventNameMap.set(onautocompleteAttr.localName(), EventTypeNames::autocomplete); |
| attributeNameToEventNameMap.set(onautocompleteerrorAttr.localName(), EventTypeNames::autocompleteerror); |
| attributeNameToEventNameMap.set(onbeforecopyAttr.localName(), EventTypeNames::beforecopy); |
| attributeNameToEventNameMap.set(onbeforecutAttr.localName(), EventTypeNames::beforecut); |
| attributeNameToEventNameMap.set(onbeforepasteAttr.localName(), EventTypeNames::beforepaste); |
| attributeNameToEventNameMap.set(onblurAttr.localName(), EventTypeNames::blur); |
| attributeNameToEventNameMap.set(oncancelAttr.localName(), EventTypeNames::cancel); |
| attributeNameToEventNameMap.set(oncanplayAttr.localName(), EventTypeNames::canplay); |
| attributeNameToEventNameMap.set(oncanplaythroughAttr.localName(), EventTypeNames::canplaythrough); |
| attributeNameToEventNameMap.set(onchangeAttr.localName(), EventTypeNames::change); |
| attributeNameToEventNameMap.set(onclickAttr.localName(), EventTypeNames::click); |
| attributeNameToEventNameMap.set(oncloseAttr.localName(), EventTypeNames::close); |
| attributeNameToEventNameMap.set(oncontextmenuAttr.localName(), EventTypeNames::contextmenu); |
| attributeNameToEventNameMap.set(oncopyAttr.localName(), EventTypeNames::copy); |
| attributeNameToEventNameMap.set(oncuechangeAttr.localName(), EventTypeNames::cuechange); |
| attributeNameToEventNameMap.set(oncutAttr.localName(), EventTypeNames::cut); |
| attributeNameToEventNameMap.set(ondblclickAttr.localName(), EventTypeNames::dblclick); |
| attributeNameToEventNameMap.set(ondragAttr.localName(), EventTypeNames::drag); |
| attributeNameToEventNameMap.set(ondragendAttr.localName(), EventTypeNames::dragend); |
| attributeNameToEventNameMap.set(ondragenterAttr.localName(), EventTypeNames::dragenter); |
| attributeNameToEventNameMap.set(ondragleaveAttr.localName(), EventTypeNames::dragleave); |
| attributeNameToEventNameMap.set(ondragoverAttr.localName(), EventTypeNames::dragover); |
| attributeNameToEventNameMap.set(ondragstartAttr.localName(), EventTypeNames::dragstart); |
| attributeNameToEventNameMap.set(ondropAttr.localName(), EventTypeNames::drop); |
| attributeNameToEventNameMap.set(ondurationchangeAttr.localName(), EventTypeNames::durationchange); |
| attributeNameToEventNameMap.set(onemptiedAttr.localName(), EventTypeNames::emptied); |
| attributeNameToEventNameMap.set(onendedAttr.localName(), EventTypeNames::ended); |
| attributeNameToEventNameMap.set(onerrorAttr.localName(), EventTypeNames::error); |
| attributeNameToEventNameMap.set(onfocusAttr.localName(), EventTypeNames::focus); |
| attributeNameToEventNameMap.set(onfocusinAttr.localName(), EventTypeNames::focusin); |
| attributeNameToEventNameMap.set(onfocusoutAttr.localName(), EventTypeNames::focusout); |
| attributeNameToEventNameMap.set(oninputAttr.localName(), EventTypeNames::input); |
| attributeNameToEventNameMap.set(oninvalidAttr.localName(), EventTypeNames::invalid); |
| attributeNameToEventNameMap.set(onkeydownAttr.localName(), EventTypeNames::keydown); |
| attributeNameToEventNameMap.set(onkeypressAttr.localName(), EventTypeNames::keypress); |
| attributeNameToEventNameMap.set(onkeyupAttr.localName(), EventTypeNames::keyup); |
| attributeNameToEventNameMap.set(onloadAttr.localName(), EventTypeNames::load); |
| attributeNameToEventNameMap.set(onloadeddataAttr.localName(), EventTypeNames::loadeddata); |
| attributeNameToEventNameMap.set(onloadedmetadataAttr.localName(), EventTypeNames::loadedmetadata); |
| attributeNameToEventNameMap.set(onloadstartAttr.localName(), EventTypeNames::loadstart); |
| attributeNameToEventNameMap.set(onmousedownAttr.localName(), EventTypeNames::mousedown); |
| attributeNameToEventNameMap.set(onmouseenterAttr.localName(), EventTypeNames::mouseenter); |
| attributeNameToEventNameMap.set(onmouseleaveAttr.localName(), EventTypeNames::mouseleave); |
| attributeNameToEventNameMap.set(onmousemoveAttr.localName(), EventTypeNames::mousemove); |
| attributeNameToEventNameMap.set(onmouseoutAttr.localName(), EventTypeNames::mouseout); |
| attributeNameToEventNameMap.set(onmouseoverAttr.localName(), EventTypeNames::mouseover); |
| attributeNameToEventNameMap.set(onmouseupAttr.localName(), EventTypeNames::mouseup); |
| attributeNameToEventNameMap.set(onmousewheelAttr.localName(), EventTypeNames::mousewheel); |
| attributeNameToEventNameMap.set(onpasteAttr.localName(), EventTypeNames::paste); |
| attributeNameToEventNameMap.set(onpauseAttr.localName(), EventTypeNames::pause); |
| attributeNameToEventNameMap.set(onplayAttr.localName(), EventTypeNames::play); |
| attributeNameToEventNameMap.set(onplayingAttr.localName(), EventTypeNames::playing); |
| attributeNameToEventNameMap.set(onprogressAttr.localName(), EventTypeNames::progress); |
| attributeNameToEventNameMap.set(onratechangeAttr.localName(), EventTypeNames::ratechange); |
| attributeNameToEventNameMap.set(onresetAttr.localName(), EventTypeNames::reset); |
| attributeNameToEventNameMap.set(onresizeAttr.localName(), EventTypeNames::resize); |
| attributeNameToEventNameMap.set(onscrollAttr.localName(), EventTypeNames::scroll); |
| attributeNameToEventNameMap.set(onseekedAttr.localName(), EventTypeNames::seeked); |
| attributeNameToEventNameMap.set(onseekingAttr.localName(), EventTypeNames::seeking); |
| attributeNameToEventNameMap.set(onselectAttr.localName(), EventTypeNames::select); |
| attributeNameToEventNameMap.set(onselectstartAttr.localName(), EventTypeNames::selectstart); |
| attributeNameToEventNameMap.set(onshowAttr.localName(), EventTypeNames::show); |
| attributeNameToEventNameMap.set(onstalledAttr.localName(), EventTypeNames::stalled); |
| attributeNameToEventNameMap.set(onsubmitAttr.localName(), EventTypeNames::submit); |
| attributeNameToEventNameMap.set(onsuspendAttr.localName(), EventTypeNames::suspend); |
| attributeNameToEventNameMap.set(ontimeupdateAttr.localName(), EventTypeNames::timeupdate); |
| attributeNameToEventNameMap.set(ontoggleAttr.localName(), EventTypeNames::toggle); |
| attributeNameToEventNameMap.set(ontouchcancelAttr.localName(), EventTypeNames::touchcancel); |
| attributeNameToEventNameMap.set(ontouchendAttr.localName(), EventTypeNames::touchend); |
| attributeNameToEventNameMap.set(ontouchmoveAttr.localName(), EventTypeNames::touchmove); |
| attributeNameToEventNameMap.set(ontouchstartAttr.localName(), EventTypeNames::touchstart); |
| attributeNameToEventNameMap.set(ontransitionendAttr.localName(), EventTypeNames::webkitTransitionEnd); |
| attributeNameToEventNameMap.set(onvolumechangeAttr.localName(), EventTypeNames::volumechange); |
| attributeNameToEventNameMap.set(onwaitingAttr.localName(), EventTypeNames::waiting); |
| attributeNameToEventNameMap.set(onwebkitanimationendAttr.localName(), EventTypeNames::webkitAnimationEnd); |
| attributeNameToEventNameMap.set(onwebkitanimationiterationAttr.localName(), EventTypeNames::webkitAnimationIteration); |
| attributeNameToEventNameMap.set(onwebkitanimationstartAttr.localName(), EventTypeNames::webkitAnimationStart); |
| attributeNameToEventNameMap.set(onwebkitfullscreenchangeAttr.localName(), EventTypeNames::webkitfullscreenchange); |
| attributeNameToEventNameMap.set(onwebkitfullscreenerrorAttr.localName(), EventTypeNames::webkitfullscreenerror); |
| attributeNameToEventNameMap.set(onwebkittransitionendAttr.localName(), EventTypeNames::webkitTransitionEnd); |
| attributeNameToEventNameMap.set(onwheelAttr.localName(), EventTypeNames::wheel); |
| } |
| |
| return attributeNameToEventNameMap.get(attrName.localName()); |
| } |
| |
| void HTMLElement::parseAttribute(const QualifiedName& name, const AtomicString& value) |
| { |
| if (name == tabindexAttr) |
| return Element::parseAttribute(name, value); |
| |
| if (name == dirAttr) { |
| dirAttributeChanged(value); |
| } else { |
| const AtomicString& eventName = eventNameForAttributeName(name); |
| if (!eventName.isNull()) |
| setAttributeEventListener(eventName, createAttributeEventListener(this, name, value, eventParameterName())); |
| } |
| } |
| |
| PassRefPtrWillBeRawPtr<DocumentFragment> HTMLElement::textToFragment(const String& text, ExceptionState& exceptionState) |
| { |
| RefPtrWillBeRawPtr<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 renderer? |
| // FIXME: Can the renderer be out of date here? Do we need to call updateStyleIfNeeded? |
| // For example, for the contents of textarea elements that are display:none? |
| RenderObject* r = renderer(); |
| 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. |
| RefPtrWillBeRawPtr<DocumentFragment> fragment = textToFragment(text, exceptionState); |
| if (!exceptionState.hadException()) |
| replaceChildrenWithFragment(this, fragment.release(), 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; |
| } |
| |
| RefPtrWillBeRawPtr<Node> prev = previousSibling(); |
| RefPtrWillBeRawPtr<Node> next = nextSibling(); |
| RefPtrWillBeRawPtr<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.release(), this, exceptionState); |
| |
| RefPtrWillBeRawPtr<Node> node = next ? next->previousSibling() : nullptr; |
| if (!exceptionState.hadException() && node && node->isTextNode()) |
| mergeWithNextTextNode(toText(node.get()), exceptionState); |
| |
| if (!exceptionState.hadException() && prev && prev->isTextNode()) |
| mergeWithNextTextNode(toText(prev.get()), 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::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::click() |
| { |
| dispatchSimulatedClick(0, SendNoEvents); |
| } |
| |
| 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) { |
| ASSERT(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", AtomicString::ConstructFromLiteral)); |
| DEFINE_STATIC_LOCAL(const AtomicString, rtlValue, ("rtl", AtomicString::ConstructFromLiteral)); |
| DEFINE_STATIC_LOCAL(const AtomicString, autoValue, ("auto", AtomicString::ConstructFromLiteral)); |
| |
| 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)); |
| } |
| |
| static void setHasDirAutoFlagRecursively(Node* firstNode, bool flag, Node* lastNode = 0) |
| { |
| firstNode->setSelfOrAncestorHasDirAutoAttribute(flag); |
| |
| Node* node = firstNode->firstChild(); |
| |
| while (node) { |
| if (elementAffectsDirectionality(node)) { |
| if (node == lastNode) |
| return; |
| node = NodeTraversal::nextSkippingChildren(*node, firstNode); |
| continue; |
| } |
| node->setSelfOrAncestorHasDirAutoAttribute(flag); |
| if (node == lastNode) |
| return; |
| node = NodeTraversal::next(*node, firstNode); |
| } |
| } |
| |
| void HTMLElement::childrenChanged(const ChildrenChange& change) |
| { |
| Element::childrenChanged(change); |
| adjustDirectionalityIfNeededAfterChildrenChanged(change); |
| } |
| |
| bool HTMLElement::hasDirectionAuto() const |
| { |
| const AtomicString& direction = fastGetAttribute(dirAttr); |
| return (isHTMLBDIElement(*this) && direction == nullAtom) || equalIgnoringCase(direction, "auto"); |
| } |
| |
| TextDirection HTMLElement::directionalityIfhasDirAutoAttribute(bool& isAuto) const |
| { |
| if (!(selfOrAncestorHasDirAutoAttribute() && hasDirectionAuto())) { |
| isAuto = false; |
| return LTR; |
| } |
| |
| isAuto = true; |
| 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 = firstChild(); |
| 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 = NodeTraversal::nextSkippingChildren(*node, this); |
| continue; |
| } |
| |
| // Skip elements with valid dir attribute |
| if (node->isElementNode()) { |
| AtomicString dirAttributeValue = toElement(node)->fastGetAttribute(dirAttr); |
| if (isValidDirAttribute(dirAttributeValue)) { |
| node = NodeTraversal::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 = NodeTraversal::next(*node, this); |
| } |
| if (strongDirectionalityTextNode) |
| *strongDirectionalityTextNode = 0; |
| return LTR; |
| } |
| |
| void HTMLElement::dirAttributeChanged(const AtomicString& value) |
| { |
| Element* parent = parentElement(); |
| |
| if (parent && parent->isHTMLElement() && parent->selfOrAncestorHasDirAutoAttribute()) |
| toHTMLElement(parent)->adjustDirectionalityIfNeededAfterChildAttributeChanged(this); |
| |
| if (equalIgnoringCase(value, "auto")) |
| calculateAndAdjustDirectionality(); |
| } |
| |
| void HTMLElement::adjustDirectionalityIfNeededAfterChildAttributeChanged(Element* child) |
| { |
| ASSERT(selfOrAncestorHasDirAutoAttribute()); |
| Node* strongDirectionalityTextNode; |
| TextDirection textDirection = directionality(&strongDirectionalityTextNode); |
| setHasDirAutoFlagRecursively(child, false); |
| if (renderer() && renderer()->style() && renderer()->style()->direction() != textDirection) { |
| Element* elementToAdjust = this; |
| for (; elementToAdjust; elementToAdjust = elementToAdjust->parentElement()) { |
| if (elementAffectsDirectionality(elementToAdjust)) { |
| elementToAdjust->setNeedsStyleRecalc(SubtreeStyleChange); |
| return; |
| } |
| } |
| } |
| } |
| |
| void HTMLElement::calculateAndAdjustDirectionality() |
| { |
| Node* strongDirectionalityTextNode; |
| TextDirection textDirection = directionality(&strongDirectionalityTextNode); |
| setHasDirAutoFlagRecursively(this, hasDirectionAuto(), strongDirectionalityTextNode); |
| for (ShadowRoot* root = youngestShadowRoot(); root; root = root->olderShadowRoot()) |
| setHasDirAutoFlagRecursively(root, hasDirectionAuto()); |
| if (renderer() && renderer()->style() && renderer()->style()->direction() != textDirection) |
| setNeedsStyleRecalc(SubtreeStyleChange); |
| } |
| |
| void HTMLElement::adjustDirectionalityIfNeededAfterChildrenChanged(const ChildrenChange& change) |
| { |
| if (!selfOrAncestorHasDirAutoAttribute()) |
| return; |
| |
| Node* oldMarkedNode = change.siblingBeforeChange ? NodeTraversal::nextSkippingChildren(*change.siblingBeforeChange) : 0; |
| while (oldMarkedNode && elementAffectsDirectionality(oldMarkedNode)) |
| oldMarkedNode = NodeTraversal::nextSkippingChildren(*oldMarkedNode, this); |
| if (oldMarkedNode) |
| setHasDirAutoFlagRecursively(oldMarkedNode, false); |
| |
| for (Element* elementToAdjust = this; elementToAdjust; elementToAdjust = elementToAdjust->parentElement()) { |
| 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 == '*') |
| 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. |
| ASSERT(digitBuffer.size() >= 6); |
| 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++; |
| } |
| ASSERT(redIndex + 1 < componentLength); |
| ASSERT(greenIndex >= componentLength); |
| ASSERT(greenIndex + 1 < componentLength * 2); |
| ASSERT(blueIndex >= componentLength * 2); |
| ASSERT_WITH_SECURITY_IMPLICATION(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" |
| void HTMLElement::addHTMLColorToStyle(MutableStylePropertySet* style, CSSPropertyID propertyID, const String& attributeValue) |
| { |
| // 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; |
| |
| String colorString = attributeValue.stripWhiteSpace(); |
| |
| // "transparent" doesn't apply a color either. |
| if (equalIgnoringCase(colorString, "transparent")) |
| return; |
| |
| // If the string is a named CSS color or a 3/6-digit hex color, use that. |
| Color parsedColor; |
| if (!parsedColor.setFromString(colorString)) |
| parsedColor.setRGB(parseColorStringWithCrazyLegacyRules(colorString)); |
| |
| style->setProperty(propertyID, cssValuePool().createColorValue(parsedColor.rgb())); |
| } |
| |
| bool HTMLElement::isInteractiveContent() const |
| { |
| return false; |
| } |
| |
| 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() && parentElement()->hasEditableStyle(); |
| } |
| |
| void HTMLElement::handleKeypressEvent(KeyboardEvent* event) |
| { |
| if (!document().settings() || !document().settings()->spatialNavigationEnabled() || !supportsFocus()) |
| return; |
| // 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() || isContentEditable()) |
| return; |
| int charCode = event->charCode(); |
| if (charCode == '\r' || charCode == ' ') { |
| dispatchSimulatedClick(event); |
| event->setDefaultHandled(); |
| } |
| } |
| |
| const AtomicString& HTMLElement::eventParameterName() |
| { |
| DEFINE_STATIC_LOCAL(const AtomicString, eventString, ("event", AtomicString::ConstructFromLiteral)); |
| return eventString; |
| } |
| |
| } // 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 |
