| /* |
| * 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 "third_party/blink/renderer/core/html/html_element.h" |
| |
| #include "base/stl_util.h" |
| #include "third_party/blink/renderer/bindings/core/v8/script_event_listener.h" |
| #include "third_party/blink/renderer/bindings/core/v8/string_or_trusted_script.h" |
| #include "third_party/blink/renderer/bindings/core/v8/string_treat_null_as_empty_string_or_trusted_script.h" |
| #include "third_party/blink/renderer/core/css/css_color_value.h" |
| #include "third_party/blink/renderer/core/css/css_markup.h" |
| #include "third_party/blink/renderer/core/css/css_property_names.h" |
| #include "third_party/blink/renderer/core/css/css_property_value_set.h" |
| #include "third_party/blink/renderer/core/css/style_change_reason.h" |
| #include "third_party/blink/renderer/core/css_value_keywords.h" |
| #include "third_party/blink/renderer/core/dom/document_fragment.h" |
| #include "third_party/blink/renderer/core/dom/element_rare_data.h" |
| #include "third_party/blink/renderer/core/dom/element_traversal.h" |
| #include "third_party/blink/renderer/core/dom/events/event_listener.h" |
| #include "third_party/blink/renderer/core/dom/flat_tree_traversal.h" |
| #include "third_party/blink/renderer/core/dom/node_computed_style.h" |
| #include "third_party/blink/renderer/core/dom/node_traversal.h" |
| #include "third_party/blink/renderer/core/dom/shadow_root.h" |
| #include "third_party/blink/renderer/core/dom/text.h" |
| #include "third_party/blink/renderer/core/editing/editing_utilities.h" |
| #include "third_party/blink/renderer/core/editing/serializers/serialization.h" |
| #include "third_party/blink/renderer/core/editing/spellcheck/spell_checker.h" |
| #include "third_party/blink/renderer/core/events/keyboard_event.h" |
| #include "third_party/blink/renderer/core/frame/csp/content_security_policy.h" |
| #include "third_party/blink/renderer/core/frame/local_frame.h" |
| #include "third_party/blink/renderer/core/frame/settings.h" |
| #include "third_party/blink/renderer/core/frame/use_counter.h" |
| #include "third_party/blink/renderer/core/html/custom/custom_element.h" |
| #include "third_party/blink/renderer/core/html/custom/custom_element_registry.h" |
| #include "third_party/blink/renderer/core/html/custom/element_internals.h" |
| #include "third_party/blink/renderer/core/html/forms/html_form_element.h" |
| #include "third_party/blink/renderer/core/html/forms/html_input_element.h" |
| #include "third_party/blink/renderer/core/html/html_br_element.h" |
| #include "third_party/blink/renderer/core/html/html_dimension.h" |
| #include "third_party/blink/renderer/core/html/html_frame_owner_element.h" |
| #include "third_party/blink/renderer/core/html/html_template_element.h" |
| #include "third_party/blink/renderer/core/html/parser/html_parser_idioms.h" |
| #include "third_party/blink/renderer/core/html_names.h" |
| #include "third_party/blink/renderer/core/input_type_names.h" |
| #include "third_party/blink/renderer/core/layout/adjust_for_absolute_zoom.h" |
| #include "third_party/blink/renderer/core/layout/layout_box_model_object.h" |
| #include "third_party/blink/renderer/core/layout/layout_object.h" |
| #include "third_party/blink/renderer/core/mathml_names.h" |
| #include "third_party/blink/renderer/core/page/spatial_navigation.h" |
| #include "third_party/blink/renderer/core/svg/svg_svg_element.h" |
| #include "third_party/blink/renderer/core/trustedtypes/trusted_script.h" |
| #include "third_party/blink/renderer/core/xml_names.h" |
| #include "third_party/blink/renderer/platform/bindings/exception_state.h" |
| #include "third_party/blink/renderer/platform/language.h" |
| #include "third_party/blink/renderer/platform/text/bidi_resolver.h" |
| #include "third_party/blink/renderer/platform/text/bidi_text_run.h" |
| #include "third_party/blink/renderer/platform/text/text_run_iterator.h" |
| #include "third_party/blink/renderer/platform/wtf/std_lib_extras.h" |
| #include "third_party/blink/renderer/platform/wtf/text/cstring.h" |
| |
| namespace blink { |
| |
| using namespace cssvalue; |
| using namespace html_names; |
| |
| using AttributeChangedFunction = |
| void (HTMLElement::*)(const Element::AttributeModificationParams& params); |
| |
| struct AttributeTriggers { |
| const QualifiedName& attribute; |
| WebFeature web_feature; |
| const AtomicString& event; |
| AttributeChangedFunction function; |
| }; |
| |
| namespace { |
| |
| // https://w3c.github.io/editing/execCommand.html#editing-host |
| bool IsEditingHost(const Node& node) { |
| if (!node.IsHTMLElement()) |
| return false; |
| String normalized_value = ToHTMLElement(node).contentEditable(); |
| if (normalized_value == "true" || normalized_value == "plaintext-only") |
| return true; |
| return node.GetDocument().InDesignMode() && |
| node.GetDocument().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(mathml_names::kMathTag)) |
| return true; |
| return !node.IsElementNode() && node.parentNode()->IsHTMLElement(); |
| } |
| |
| const WebFeature kNoWebFeature = static_cast<WebFeature>(0); |
| |
| } // anonymous namespace |
| |
| DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(HTMLElement); |
| |
| String HTMLElement::DebugNodeName() const { |
| if (GetDocument().IsHTMLDocument()) { |
| return TagQName().HasPrefix() ? Element::nodeName().UpperASCII() |
| : TagQName().LocalName().UpperASCII(); |
| } |
| 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 (GetDocument().IsHTMLDocument()) { |
| if (!TagQName().HasPrefix()) |
| return TagQName().LocalNameUpper(); |
| return Element::nodeName().UpperASCII(); |
| } |
| return Element::nodeName(); |
| } |
| |
| bool HTMLElement::ShouldSerializeEndTag() const { |
| // See https://www.w3.org/TR/DOM-Parsing/ |
| if (HasTagName(kAreaTag) || HasTagName(kBaseTag) || |
| HasTagName(kBasefontTag) || HasTagName(kBgsoundTag) || |
| HasTagName(kBrTag) || HasTagName(kColTag) || HasTagName(kEmbedTag) || |
| HasTagName(kFrameTag) || HasTagName(kHrTag) || HasTagName(kImgTag) || |
| HasTagName(kInputTag) || HasTagName(kKeygenTag) || HasTagName(kLinkTag) || |
| HasTagName(kMetaTag) || HasTagName(kParamTag) || HasTagName(kSourceTag) || |
| HasTagName(kTrackTag) || HasTagName(kWbrTag)) |
| return false; |
| return true; |
| } |
| |
| static inline CSSValueID UnicodeBidiAttributeForDirAuto(HTMLElement* element) { |
| if (element->HasTagName(kPreTag) || element->HasTagName(kTextareaTag)) |
| 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 border_width = 0; |
| if (value.IsEmpty() || !ParseHTMLNonNegativeInteger(value, border_width)) { |
| if (HasTagName(kTableTag) && !value.IsNull()) |
| return 1; |
| } |
| return border_width; |
| } |
| |
| void HTMLElement::ApplyBorderAttributeToStyle( |
| const AtomicString& value, |
| MutableCSSPropertyValueSet* style) { |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyBorderWidth, |
| ParseBorderWidthAttribute(value), |
| CSSPrimitiveValue::UnitType::kPixels); |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyBorderStyle, |
| CSSValueSolid); |
| } |
| |
| void HTMLElement::MapLanguageAttributeToLocale( |
| const AtomicString& value, |
| MutableCSSPropertyValueSet* 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(GetDocument(), WebFeature::kLangAttribute); |
| if (IsHTMLHtmlElement(*this)) |
| UseCounter::Count(GetDocument(), WebFeature::kLangAttributeOnHTML); |
| else if (IsHTMLBodyElement(*this)) |
| UseCounter::Count(GetDocument(), WebFeature::kLangAttributeOnBody); |
| String html_language = value.GetString(); |
| wtf_size_t first_separator = html_language.find('-'); |
| if (first_separator != kNotFound) |
| html_language = html_language.Left(first_separator); |
| String ui_language = DefaultLanguage(); |
| first_separator = ui_language.find('-'); |
| if (first_separator != kNotFound) |
| ui_language = ui_language.Left(first_separator); |
| first_separator = ui_language.find('_'); |
| if (first_separator != kNotFound) |
| ui_language = ui_language.Left(first_separator); |
| if (!DeprecatedEqualIgnoringCase(html_language, ui_language)) { |
| UseCounter::Count(GetDocument(), |
| WebFeature::kLangAttributeDoesNotMatchToUILocale); |
| } |
| } else { |
| // The empty string means the language is explicitly unknown. |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLocale, |
| CSSValueAuto); |
| } |
| } |
| |
| bool HTMLElement::IsPresentationAttribute(const QualifiedName& name) const { |
| if (name == kAlignAttr || name == kContenteditableAttr || |
| name == kHiddenAttr || name == kLangAttr || |
| name.Matches(xml_names::kLangAttr) || name == kDraggableAttr || |
| name == kDirAttr) |
| return true; |
| return Element::IsPresentationAttribute(name); |
| } |
| |
| static inline bool IsValidDirAttribute(const AtomicString& value) { |
| return DeprecatedEqualIgnoringCase(value, "auto") || |
| DeprecatedEqualIgnoringCase(value, "ltr") || |
| DeprecatedEqualIgnoringCase(value, "rtl"); |
| } |
| |
| void HTMLElement::CollectStyleForPresentationAttribute( |
| const QualifiedName& name, |
| const AtomicString& value, |
| MutableCSSPropertyValueSet* style) { |
| if (name == kAlignAttr) { |
| if (DeprecatedEqualIgnoringCase(value, "middle")) |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyTextAlign, |
| CSSValueCenter); |
| else |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyTextAlign, |
| value); |
| } else if (name == kContenteditableAttr) { |
| if (value.IsEmpty() || DeprecatedEqualIgnoringCase(value, "true")) { |
| AddPropertyToPresentationAttributeStyle( |
| style, CSSPropertyWebkitUserModify, CSSValueReadWrite); |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyOverflowWrap, |
| CSSValueBreakWord); |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLineBreak, |
| CSSValueAfterWhiteSpace); |
| UseCounter::Count(GetDocument(), WebFeature::kContentEditableTrue); |
| if (HasTagName(kHTMLTag)) { |
| UseCounter::Count(GetDocument(), |
| WebFeature::kContentEditableTrueOnHTML); |
| } |
| } else if (DeprecatedEqualIgnoringCase(value, "plaintext-only")) { |
| AddPropertyToPresentationAttributeStyle( |
| style, CSSPropertyWebkitUserModify, CSSValueReadWritePlaintextOnly); |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyOverflowWrap, |
| CSSValueBreakWord); |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitLineBreak, |
| CSSValueAfterWhiteSpace); |
| UseCounter::Count(GetDocument(), |
| WebFeature::kContentEditablePlainTextOnly); |
| } else if (DeprecatedEqualIgnoringCase(value, "false")) { |
| AddPropertyToPresentationAttributeStyle( |
| style, CSSPropertyWebkitUserModify, CSSValueReadOnly); |
| } |
| } else if (name == kHiddenAttr) { |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyDisplay, |
| CSSValueNone); |
| } else if (name == kDraggableAttr) { |
| UseCounter::Count(GetDocument(), WebFeature::kDraggableAttribute); |
| if (DeprecatedEqualIgnoringCase(value, "true")) { |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserDrag, |
| CSSValueElement); |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyUserSelect, |
| CSSValueNone); |
| } else if (DeprecatedEqualIgnoringCase(value, "false")) { |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitUserDrag, |
| CSSValueNone); |
| } |
| } else if (name == kDirAttr) { |
| if (DeprecatedEqualIgnoringCase(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(kBdiTag) && !HasTagName(kBdoTag) && |
| !HasTagName(kOutputTag)) |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyUnicodeBidi, |
| CSSValueIsolate); |
| } |
| } else if (name.Matches(xml_names::kLangAttr)) { |
| MapLanguageAttributeToLocale(value, style); |
| } else if (name == kLangAttr) { |
| // xml:lang has a higher priority than lang. |
| if (!FastHasAttribute(xml_names::kLangAttr)) |
| MapLanguageAttributeToLocale(value, style); |
| } else { |
| Element::CollectStyleForPresentationAttribute(name, value, style); |
| } |
| } |
| |
| // static |
| AttributeTriggers* HTMLElement::TriggersForAttributeName( |
| const QualifiedName& attr_name) { |
| const AtomicString& kNoEvent = g_null_atom; |
| static AttributeTriggers attribute_triggers[] = { |
| {kDirAttr, kNoWebFeature, kNoEvent, &HTMLElement::OnDirAttrChanged}, |
| {kInertAttr, WebFeature::kInertAttribute, kNoEvent, |
| &HTMLElement::OnInertAttrChanged}, |
| {kLangAttr, kNoWebFeature, kNoEvent, &HTMLElement::OnLangAttrChanged}, |
| {kNonceAttr, kNoWebFeature, kNoEvent, &HTMLElement::OnNonceAttrChanged}, |
| {kTabindexAttr, kNoWebFeature, kNoEvent, |
| &HTMLElement::OnTabIndexAttrChanged}, |
| {xml_names::kLangAttr, kNoWebFeature, kNoEvent, |
| &HTMLElement::OnXMLLangAttrChanged}, |
| |
| {kOnabortAttr, kNoWebFeature, event_type_names::kAbort, nullptr}, |
| {kOnactivateinvisibleAttr, kNoWebFeature, |
| event_type_names::kActivateinvisible, nullptr}, |
| {kOnanimationendAttr, kNoWebFeature, event_type_names::kAnimationend, |
| nullptr}, |
| {kOnanimationiterationAttr, kNoWebFeature, |
| event_type_names::kAnimationiteration, nullptr}, |
| {kOnanimationstartAttr, kNoWebFeature, event_type_names::kAnimationstart, |
| nullptr}, |
| {kOnauxclickAttr, kNoWebFeature, event_type_names::kAuxclick, nullptr}, |
| {kOnbeforecopyAttr, kNoWebFeature, event_type_names::kBeforecopy, |
| nullptr}, |
| {kOnbeforecutAttr, kNoWebFeature, event_type_names::kBeforecut, nullptr}, |
| {kOnbeforepasteAttr, kNoWebFeature, event_type_names::kBeforepaste, |
| nullptr}, |
| {kOnblurAttr, kNoWebFeature, event_type_names::kBlur, nullptr}, |
| {kOncancelAttr, kNoWebFeature, event_type_names::kCancel, nullptr}, |
| {kOncanplayAttr, kNoWebFeature, event_type_names::kCanplay, nullptr}, |
| {kOncanplaythroughAttr, kNoWebFeature, event_type_names::kCanplaythrough, |
| nullptr}, |
| {kOnchangeAttr, kNoWebFeature, event_type_names::kChange, nullptr}, |
| {kOnclickAttr, kNoWebFeature, event_type_names::kClick, nullptr}, |
| {kOncloseAttr, kNoWebFeature, event_type_names::kClose, nullptr}, |
| {kOncontextmenuAttr, kNoWebFeature, event_type_names::kContextmenu, |
| nullptr}, |
| {kOncopyAttr, kNoWebFeature, event_type_names::kCopy, nullptr}, |
| {kOncuechangeAttr, kNoWebFeature, event_type_names::kCuechange, nullptr}, |
| {kOncutAttr, kNoWebFeature, event_type_names::kCut, nullptr}, |
| {kOndblclickAttr, kNoWebFeature, event_type_names::kDblclick, nullptr}, |
| {kOndragAttr, kNoWebFeature, event_type_names::kDrag, nullptr}, |
| {kOndragendAttr, kNoWebFeature, event_type_names::kDragend, nullptr}, |
| {kOndragenterAttr, kNoWebFeature, event_type_names::kDragenter, nullptr}, |
| {kOndragleaveAttr, kNoWebFeature, event_type_names::kDragleave, nullptr}, |
| {kOndragoverAttr, kNoWebFeature, event_type_names::kDragover, nullptr}, |
| {kOndragstartAttr, kNoWebFeature, event_type_names::kDragstart, nullptr}, |
| {kOndropAttr, kNoWebFeature, event_type_names::kDrop, nullptr}, |
| {kOndurationchangeAttr, kNoWebFeature, event_type_names::kDurationchange, |
| nullptr}, |
| {kOnemptiedAttr, kNoWebFeature, event_type_names::kEmptied, nullptr}, |
| {kOnendedAttr, kNoWebFeature, event_type_names::kEnded, nullptr}, |
| {kOnerrorAttr, kNoWebFeature, event_type_names::kError, nullptr}, |
| {kOnfocusAttr, kNoWebFeature, event_type_names::kFocus, nullptr}, |
| {kOnfocusinAttr, kNoWebFeature, event_type_names::kFocusin, nullptr}, |
| {kOnfocusoutAttr, kNoWebFeature, event_type_names::kFocusout, nullptr}, |
| {kOnformdataAttr, kNoWebFeature, event_type_names::kFormdata, nullptr}, |
| {kOngotpointercaptureAttr, kNoWebFeature, |
| event_type_names::kGotpointercapture, nullptr}, |
| {kOninputAttr, kNoWebFeature, event_type_names::kInput, nullptr}, |
| {kOninvalidAttr, kNoWebFeature, event_type_names::kInvalid, nullptr}, |
| {kOnkeydownAttr, kNoWebFeature, event_type_names::kKeydown, nullptr}, |
| {kOnkeypressAttr, kNoWebFeature, event_type_names::kKeypress, nullptr}, |
| {kOnkeyupAttr, kNoWebFeature, event_type_names::kKeyup, nullptr}, |
| {kOnloadAttr, kNoWebFeature, event_type_names::kLoad, nullptr}, |
| {kOnloadeddataAttr, kNoWebFeature, event_type_names::kLoadeddata, |
| nullptr}, |
| {kOnloadedmetadataAttr, kNoWebFeature, event_type_names::kLoadedmetadata, |
| nullptr}, |
| {kOnloadstartAttr, kNoWebFeature, event_type_names::kLoadstart, nullptr}, |
| {kOnlostpointercaptureAttr, kNoWebFeature, |
| event_type_names::kLostpointercapture, nullptr}, |
| {kOnmousedownAttr, kNoWebFeature, event_type_names::kMousedown, nullptr}, |
| {kOnmouseenterAttr, kNoWebFeature, event_type_names::kMouseenter, |
| nullptr}, |
| {kOnmouseleaveAttr, kNoWebFeature, event_type_names::kMouseleave, |
| nullptr}, |
| {kOnmousemoveAttr, kNoWebFeature, event_type_names::kMousemove, nullptr}, |
| {kOnmouseoutAttr, kNoWebFeature, event_type_names::kMouseout, nullptr}, |
| {kOnmouseoverAttr, kNoWebFeature, event_type_names::kMouseover, nullptr}, |
| {kOnmouseupAttr, kNoWebFeature, event_type_names::kMouseup, nullptr}, |
| {kOnmousewheelAttr, kNoWebFeature, event_type_names::kMousewheel, |
| nullptr}, |
| {kOnpasteAttr, kNoWebFeature, event_type_names::kPaste, nullptr}, |
| {kOnpauseAttr, kNoWebFeature, event_type_names::kPause, nullptr}, |
| {kOnplayAttr, kNoWebFeature, event_type_names::kPlay, nullptr}, |
| {kOnplayingAttr, kNoWebFeature, event_type_names::kPlaying, nullptr}, |
| {kOnpointercancelAttr, kNoWebFeature, event_type_names::kPointercancel, |
| nullptr}, |
| {kOnpointerdownAttr, kNoWebFeature, event_type_names::kPointerdown, |
| nullptr}, |
| {kOnpointerenterAttr, kNoWebFeature, event_type_names::kPointerenter, |
| nullptr}, |
| {kOnpointerleaveAttr, kNoWebFeature, event_type_names::kPointerleave, |
| nullptr}, |
| {kOnpointermoveAttr, kNoWebFeature, event_type_names::kPointermove, |
| nullptr}, |
| {kOnpointeroutAttr, kNoWebFeature, event_type_names::kPointerout, |
| nullptr}, |
| {kOnpointeroverAttr, kNoWebFeature, event_type_names::kPointerover, |
| nullptr}, |
| {kOnpointerrawmoveAttr, kNoWebFeature, event_type_names::kPointerrawmove, |
| nullptr}, |
| {kOnpointerupAttr, kNoWebFeature, event_type_names::kPointerup, nullptr}, |
| {kOnprogressAttr, kNoWebFeature, event_type_names::kProgress, nullptr}, |
| {kOnratechangeAttr, kNoWebFeature, event_type_names::kRatechange, |
| nullptr}, |
| {kOnresetAttr, kNoWebFeature, event_type_names::kReset, nullptr}, |
| {kOnresizeAttr, kNoWebFeature, event_type_names::kResize, nullptr}, |
| {kOnscrollAttr, kNoWebFeature, event_type_names::kScroll, nullptr}, |
| {kOnseekedAttr, kNoWebFeature, event_type_names::kSeeked, nullptr}, |
| {kOnseekingAttr, kNoWebFeature, event_type_names::kSeeking, nullptr}, |
| {kOnselectAttr, kNoWebFeature, event_type_names::kSelect, nullptr}, |
| {kOnselectstartAttr, kNoWebFeature, event_type_names::kSelectstart, |
| nullptr}, |
| {kOnstalledAttr, kNoWebFeature, event_type_names::kStalled, nullptr}, |
| {kOnsubmitAttr, kNoWebFeature, event_type_names::kSubmit, nullptr}, |
| {kOnsuspendAttr, kNoWebFeature, event_type_names::kSuspend, nullptr}, |
| {kOntimeupdateAttr, kNoWebFeature, event_type_names::kTimeupdate, |
| nullptr}, |
| {kOntoggleAttr, kNoWebFeature, event_type_names::kToggle, nullptr}, |
| {kOntouchcancelAttr, kNoWebFeature, event_type_names::kTouchcancel, |
| nullptr}, |
| {kOntouchendAttr, kNoWebFeature, event_type_names::kTouchend, nullptr}, |
| {kOntouchmoveAttr, kNoWebFeature, event_type_names::kTouchmove, nullptr}, |
| {kOntouchstartAttr, kNoWebFeature, event_type_names::kTouchstart, |
| nullptr}, |
| {kOntransitionendAttr, kNoWebFeature, |
| event_type_names::kWebkitTransitionEnd, nullptr}, |
| {kOnvolumechangeAttr, kNoWebFeature, event_type_names::kVolumechange, |
| nullptr}, |
| {kOnwaitingAttr, kNoWebFeature, event_type_names::kWaiting, nullptr}, |
| {kOnwebkitanimationendAttr, kNoWebFeature, |
| event_type_names::kWebkitAnimationEnd, nullptr}, |
| {kOnwebkitanimationiterationAttr, kNoWebFeature, |
| event_type_names::kWebkitAnimationIteration, nullptr}, |
| {kOnwebkitanimationstartAttr, kNoWebFeature, |
| event_type_names::kWebkitAnimationStart, nullptr}, |
| {kOnwebkitfullscreenchangeAttr, kNoWebFeature, |
| event_type_names::kWebkitfullscreenchange, nullptr}, |
| {kOnwebkitfullscreenerrorAttr, kNoWebFeature, |
| event_type_names::kWebkitfullscreenerror, nullptr}, |
| {kOnwebkittransitionendAttr, kNoWebFeature, |
| event_type_names::kWebkitTransitionEnd, nullptr}, |
| {kOnwheelAttr, kNoWebFeature, event_type_names::kWheel, nullptr}, |
| |
| {kAriaActivedescendantAttr, WebFeature::kARIAActiveDescendantAttribute, |
| kNoEvent, nullptr}, |
| {kAriaAtomicAttr, WebFeature::kARIAAtomicAttribute, kNoEvent, nullptr}, |
| {kAriaAutocompleteAttr, WebFeature::kARIAAutocompleteAttribute, kNoEvent, |
| nullptr}, |
| {kAriaBusyAttr, WebFeature::kARIABusyAttribute, kNoEvent, nullptr}, |
| {kAriaCheckedAttr, WebFeature::kARIACheckedAttribute, kNoEvent, nullptr}, |
| {kAriaColcountAttr, WebFeature::kARIAColCountAttribute, kNoEvent, |
| nullptr}, |
| {kAriaColindexAttr, WebFeature::kARIAColIndexAttribute, kNoEvent, |
| nullptr}, |
| {kAriaColspanAttr, WebFeature::kARIAColSpanAttribute, kNoEvent, nullptr}, |
| {kAriaControlsAttr, WebFeature::kARIAControlsAttribute, kNoEvent, |
| nullptr}, |
| {kAriaCurrentAttr, WebFeature::kARIACurrentAttribute, kNoEvent, nullptr}, |
| {kAriaDescribedbyAttr, WebFeature::kARIADescribedByAttribute, kNoEvent, |
| nullptr}, |
| {kAriaDetailsAttr, WebFeature::kARIADetailsAttribute, kNoEvent, nullptr}, |
| {kAriaDisabledAttr, WebFeature::kARIADisabledAttribute, kNoEvent, |
| nullptr}, |
| {kAriaDropeffectAttr, WebFeature::kARIADropEffectAttribute, kNoEvent, |
| nullptr}, |
| {kAriaErrormessageAttr, WebFeature::kARIAErrorMessageAttribute, kNoEvent, |
| nullptr}, |
| {kAriaExpandedAttr, WebFeature::kARIAExpandedAttribute, kNoEvent, |
| nullptr}, |
| {kAriaFlowtoAttr, WebFeature::kARIAFlowToAttribute, kNoEvent, nullptr}, |
| {kAriaGrabbedAttr, WebFeature::kARIAGrabbedAttribute, kNoEvent, nullptr}, |
| {kAriaHaspopupAttr, WebFeature::kARIAHasPopupAttribute, kNoEvent, |
| nullptr}, |
| {kAriaHelpAttr, WebFeature::kARIAHelpAttribute, kNoEvent, nullptr}, |
| {kAriaHiddenAttr, WebFeature::kARIAHiddenAttribute, kNoEvent, nullptr}, |
| {kAriaInvalidAttr, WebFeature::kARIAInvalidAttribute, kNoEvent, nullptr}, |
| {kAriaKeyshortcutsAttr, WebFeature::kARIAKeyShortcutsAttribute, kNoEvent, |
| nullptr}, |
| {kAriaLabelAttr, WebFeature::kARIALabelAttribute, kNoEvent, nullptr}, |
| {kAriaLabeledbyAttr, WebFeature::kARIALabeledByAttribute, kNoEvent, |
| nullptr}, |
| {kAriaLabelledbyAttr, WebFeature::kARIALabelledByAttribute, kNoEvent, |
| nullptr}, |
| {kAriaLevelAttr, WebFeature::kARIALevelAttribute, kNoEvent, nullptr}, |
| {kAriaLiveAttr, WebFeature::kARIALiveAttribute, kNoEvent, nullptr}, |
| {kAriaModalAttr, WebFeature::kARIAModalAttribute, kNoEvent, nullptr}, |
| {kAriaMultilineAttr, WebFeature::kARIAMultilineAttribute, kNoEvent, |
| nullptr}, |
| {kAriaMultiselectableAttr, WebFeature::kARIAMultiselectableAttribute, |
| kNoEvent, nullptr}, |
| {kAriaOrientationAttr, WebFeature::kARIAOrientationAttribute, kNoEvent, |
| nullptr}, |
| {kAriaOwnsAttr, WebFeature::kARIAOwnsAttribute, kNoEvent, nullptr}, |
| {kAriaPlaceholderAttr, WebFeature::kARIAPlaceholderAttribute, kNoEvent, |
| nullptr}, |
| {kAriaPosinsetAttr, WebFeature::kARIAPosInSetAttribute, kNoEvent, |
| nullptr}, |
| {kAriaPressedAttr, WebFeature::kARIAPressedAttribute, kNoEvent, nullptr}, |
| {kAriaReadonlyAttr, WebFeature::kARIAReadOnlyAttribute, kNoEvent, |
| nullptr}, |
| {kAriaRelevantAttr, WebFeature::kARIARelevantAttribute, kNoEvent, |
| nullptr}, |
| {kAriaRequiredAttr, WebFeature::kARIARequiredAttribute, kNoEvent, |
| nullptr}, |
| {kAriaRoledescriptionAttr, WebFeature::kARIARoleDescriptionAttribute, |
| kNoEvent, nullptr}, |
| {kAriaRowcountAttr, WebFeature::kARIARowCountAttribute, kNoEvent, |
| nullptr}, |
| {kAriaRowindexAttr, WebFeature::kARIARowIndexAttribute, kNoEvent, |
| nullptr}, |
| {kAriaRowspanAttr, WebFeature::kARIARowSpanAttribute, kNoEvent, nullptr}, |
| {kAriaSelectedAttr, WebFeature::kARIASelectedAttribute, kNoEvent, |
| nullptr}, |
| {kAriaSetsizeAttr, WebFeature::kARIASetSizeAttribute, kNoEvent, nullptr}, |
| {kAriaSortAttr, WebFeature::kARIASortAttribute, kNoEvent, nullptr}, |
| {kAriaValuemaxAttr, WebFeature::kARIAValueMaxAttribute, kNoEvent, |
| nullptr}, |
| {kAriaValueminAttr, WebFeature::kARIAValueMinAttribute, kNoEvent, |
| nullptr}, |
| {kAriaValuenowAttr, WebFeature::kARIAValueNowAttribute, kNoEvent, |
| nullptr}, |
| {kAriaValuetextAttr, WebFeature::kARIAValueTextAttribute, kNoEvent, |
| nullptr}, |
| {kAutocapitalizeAttr, WebFeature::kAutocapitalizeAttribute, kNoEvent, |
| nullptr}, |
| }; |
| |
| using AttributeToTriggerIndexMap = HashMap<QualifiedName, uint32_t>; |
| DEFINE_STATIC_LOCAL(AttributeToTriggerIndexMap, |
| attribute_to_trigger_index_map, ()); |
| if (!attribute_to_trigger_index_map.size()) { |
| for (uint32_t i = 0; i < base::size(attribute_triggers); ++i) |
| attribute_to_trigger_index_map.insert(attribute_triggers[i].attribute, i); |
| } |
| |
| auto iter = attribute_to_trigger_index_map.find(attr_name); |
| if (iter != attribute_to_trigger_index_map.end()) |
| return &attribute_triggers[iter->value]; |
| return nullptr; |
| } |
| |
| // static |
| const AtomicString& HTMLElement::EventNameForAttributeName( |
| const QualifiedName& attr_name) { |
| AttributeTriggers* triggers = TriggersForAttributeName(attr_name); |
| if (triggers) |
| return triggers->event; |
| return g_null_atom; |
| } |
| |
| void HTMLElement::AttributeChanged(const AttributeModificationParams& params) { |
| Element::AttributeChanged(params); |
| if (params.reason != AttributeModificationReason::kDirectly) |
| return; |
| // adjustedFocusedElementInTreeScope() is not trivial. We should check |
| // attribute names, then call adjustedFocusedElementInTreeScope(). |
| if (params.name == kHiddenAttr && !params.new_value.IsNull()) { |
| if (AdjustedFocusedElementInTreeScope() == this) |
| blur(); |
| } else if (params.name == kContenteditableAttr) { |
| if (GetDocument().GetFrame()) { |
| GetDocument() |
| .GetFrame() |
| ->GetSpellChecker() |
| .RemoveSpellingAndGrammarMarkers( |
| *this, SpellChecker::ElementsType::kOnlyNonEditable); |
| } |
| if (AdjustedFocusedElementInTreeScope() != this) |
| return; |
| // The attribute change may cause supportsFocus() to return false |
| // for the element which had focus. |
| // |
| // TODO(tkent): We should avoid updating style. We'd like to check only |
| // DOM-level focusability here. |
| GetDocument().UpdateStyleAndLayoutTreeForNode(this); |
| if (!SupportsFocus()) |
| blur(); |
| } |
| } |
| |
| void HTMLElement::ParseAttribute(const AttributeModificationParams& params) { |
| AttributeTriggers* triggers = TriggersForAttributeName(params.name); |
| if (!triggers) |
| return; |
| |
| if (triggers->event != g_null_atom) { |
| SetAttributeEventListener( |
| triggers->event, |
| CreateAttributeEventListener(this, params.name, params.new_value)); |
| } |
| |
| if (triggers->web_feature != kNoWebFeature) { |
| // Count usage of attributes but ignore attributes in user agent shadow DOM. |
| if (ShadowRoot* shadow = ContainingShadowRoot()) { |
| if (shadow->IsUserAgent()) |
| UseCounter::Count(GetDocument(), triggers->web_feature); |
| } |
| } |
| |
| if (triggers->function) |
| ((*this).*(triggers->function))(params); |
| } |
| |
| DocumentFragment* HTMLElement::TextToFragment(const String& text, |
| ExceptionState& exception_state) { |
| DocumentFragment* fragment = DocumentFragment::Create(GetDocument()); |
| 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; |
| } |
| |
| if (i > start) { |
| fragment->AppendChild( |
| Text::Create(GetDocument(), text.Substring(start, i - start)), |
| exception_state); |
| if (exception_state.HadException()) |
| return nullptr; |
| } |
| |
| if (i == length) |
| break; |
| |
| fragment->AppendChild(HTMLBRElement::Create(GetDocument()), |
| exception_state); |
| if (exception_state.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; |
| } |
| |
| void HTMLElement::setInnerText( |
| const StringOrTrustedScript& string_or_trusted_script, |
| ExceptionState& exception_state) { |
| String value; |
| if (string_or_trusted_script.IsString()) |
| value = string_or_trusted_script.GetAsString(); |
| else if (string_or_trusted_script.IsTrustedScript()) |
| value = string_or_trusted_script.GetAsTrustedScript()->toString(); |
| setInnerText(value, exception_state); |
| } |
| |
| void HTMLElement::setInnerText( |
| const StringTreatNullAsEmptyStringOrTrustedScript& string_or_trusted_script, |
| ExceptionState& exception_state) { |
| StringOrTrustedScript tmp; |
| if (string_or_trusted_script.IsString()) |
| tmp.SetString(string_or_trusted_script.GetAsString()); |
| else if (string_or_trusted_script.IsTrustedScript()) |
| tmp.SetTrustedScript(string_or_trusted_script.GetAsTrustedScript()); |
| setInnerText(tmp, exception_state); |
| } |
| |
| void HTMLElement::innerText( |
| StringTreatNullAsEmptyStringOrTrustedScript& result) { |
| result.SetString(innerText()); |
| } |
| |
| void HTMLElement::innerText(StringOrTrustedScript& result) { |
| result.SetString(innerText()); |
| } |
| |
| String HTMLElement::innerText() { |
| return Element::innerText(); |
| } |
| |
| void HTMLElement::setInnerText(const String& text, |
| ExceptionState& exception_state) { |
| // 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, exception_state); |
| return; |
| } |
| |
| // Add text nodes and <br> elements. |
| DocumentFragment* fragment = TextToFragment(text, exception_state); |
| if (!exception_state.HadException()) |
| ReplaceChildrenWithFragment(this, fragment, exception_state); |
| } |
| |
| void HTMLElement::setOuterText(const String& text, |
| ExceptionState& exception_state) { |
| ContainerNode* parent = parentNode(); |
| if (!parent) { |
| exception_state.ThrowDOMException( |
| DOMExceptionCode::kNoModificationAllowedError, |
| "The element has no parent."); |
| return; |
| } |
| |
| Node* prev = previousSibling(); |
| Node* next = nextSibling(); |
| Node* new_child = nullptr; |
| |
| // Convert text to fragment with <br> tags instead of linebreaks if needed. |
| if (text.Contains('\r') || text.Contains('\n')) |
| new_child = TextToFragment(text, exception_state); |
| else |
| new_child = Text::Create(GetDocument(), text); |
| |
| // textToFragment might cause mutation events. |
| if (!parentNode()) |
| exception_state.ThrowDOMException(DOMExceptionCode::kHierarchyRequestError, |
| "The element has no parent."); |
| |
| if (exception_state.HadException()) |
| return; |
| |
| parent->ReplaceChild(new_child, this, exception_state); |
| |
| Node* node = next ? next->previousSibling() : nullptr; |
| if (!exception_state.HadException() && node && node->IsTextNode()) |
| MergeWithNextTextNode(ToText(node), exception_state); |
| |
| if (!exception_state.HadException() && prev && prev->IsTextNode()) |
| MergeWithNextTextNode(ToText(prev), exception_state); |
| } |
| |
| void HTMLElement::ApplyAlignmentAttributeToStyle( |
| const AtomicString& alignment, |
| MutableCSSPropertyValueSet* style) { |
| // Vertical alignment with respect to the current baseline of the text |
| // right or left means floating images. |
| CSSValueID float_value = CSSValueInvalid; |
| CSSValueID vertical_align_value = CSSValueInvalid; |
| |
| if (DeprecatedEqualIgnoringCase(alignment, "absmiddle")) { |
| vertical_align_value = CSSValueMiddle; |
| } else if (DeprecatedEqualIgnoringCase(alignment, "absbottom")) { |
| vertical_align_value = CSSValueBottom; |
| } else if (DeprecatedEqualIgnoringCase(alignment, "left")) { |
| float_value = CSSValueLeft; |
| vertical_align_value = CSSValueTop; |
| } else if (DeprecatedEqualIgnoringCase(alignment, "right")) { |
| float_value = CSSValueRight; |
| vertical_align_value = CSSValueTop; |
| } else if (DeprecatedEqualIgnoringCase(alignment, "top")) { |
| vertical_align_value = CSSValueTop; |
| } else if (DeprecatedEqualIgnoringCase(alignment, "middle")) { |
| vertical_align_value = CSSValueWebkitBaselineMiddle; |
| } else if (DeprecatedEqualIgnoringCase(alignment, "center")) { |
| vertical_align_value = CSSValueMiddle; |
| } else if (DeprecatedEqualIgnoringCase(alignment, "bottom")) { |
| vertical_align_value = CSSValueBaseline; |
| } else if (DeprecatedEqualIgnoringCase(alignment, "texttop")) { |
| vertical_align_value = CSSValueTextTop; |
| } |
| |
| if (float_value != CSSValueInvalid) |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyFloat, |
| float_value); |
| |
| if (vertical_align_value != CSSValueInvalid) |
| AddPropertyToPresentationAttributeStyle(style, CSSPropertyVerticalAlign, |
| vertical_align_value); |
| } |
| |
| bool HTMLElement::HasCustomFocusLogic() const { |
| return false; |
| } |
| |
| String HTMLElement::contentEditable() const { |
| const AtomicString& value = FastGetAttribute(kContenteditableAttr); |
| |
| if (value.IsNull()) |
| return "inherit"; |
| if (value.IsEmpty() || DeprecatedEqualIgnoringCase(value, "true")) |
| return "true"; |
| if (DeprecatedEqualIgnoringCase(value, "false")) |
| return "false"; |
| if (DeprecatedEqualIgnoringCase(value, "plaintext-only")) |
| return "plaintext-only"; |
| |
| return "inherit"; |
| } |
| |
| void HTMLElement::setContentEditable(const String& enabled, |
| ExceptionState& exception_state) { |
| if (DeprecatedEqualIgnoringCase(enabled, "true")) |
| setAttribute(kContenteditableAttr, "true"); |
| else if (DeprecatedEqualIgnoringCase(enabled, "false")) |
| setAttribute(kContenteditableAttr, "false"); |
| else if (DeprecatedEqualIgnoringCase(enabled, "plaintext-only")) |
| setAttribute(kContenteditableAttr, "plaintext-only"); |
| else if (DeprecatedEqualIgnoringCase(enabled, "inherit")) |
| removeAttribute(kContenteditableAttr); |
| else |
| exception_state.ThrowDOMException(DOMExceptionCode::kSyntaxError, |
| "The value provided ('" + enabled + |
| "') is not one of 'true', 'false', " |
| "'plaintext-only', or 'inherit'."); |
| } |
| |
| const AtomicString& HTMLElement::autocapitalize() const { |
| DEFINE_STATIC_LOCAL(const AtomicString, kOff, ("off")); |
| DEFINE_STATIC_LOCAL(const AtomicString, kNone, ("none")); |
| DEFINE_STATIC_LOCAL(const AtomicString, kCharacters, ("characters")); |
| DEFINE_STATIC_LOCAL(const AtomicString, kWords, ("words")); |
| DEFINE_STATIC_LOCAL(const AtomicString, kSentences, ("sentences")); |
| |
| const AtomicString& value = FastGetAttribute(kAutocapitalizeAttr); |
| if (value.IsEmpty()) |
| return g_empty_atom; |
| |
| if (EqualIgnoringASCIICase(value, kNone) || |
| EqualIgnoringASCIICase(value, kOff)) |
| return kNone; |
| if (EqualIgnoringASCIICase(value, kCharacters)) |
| return kCharacters; |
| if (EqualIgnoringASCIICase(value, kWords)) |
| return kWords; |
| // "sentences", "on", or an invalid value |
| return kSentences; |
| } |
| |
| void HTMLElement::setAutocapitalize(const AtomicString& value) { |
| setAttribute(kAutocapitalizeAttr, value); |
| } |
| |
| bool HTMLElement::isContentEditableForBinding() const { |
| return IsEditingHost(*this) || IsEditable(*this); |
| } |
| |
| bool HTMLElement::draggable() const { |
| return DeprecatedEqualIgnoringCase(getAttribute(kDraggableAttr), "true"); |
| } |
| |
| void HTMLElement::setDraggable(bool value) { |
| setAttribute(kDraggableAttr, value ? "true" : "false"); |
| } |
| |
| bool HTMLElement::spellcheck() const { |
| return IsSpellCheckingEnabled(); |
| } |
| |
| void HTMLElement::setSpellcheck(bool enable) { |
| setAttribute(kSpellcheckAttr, enable ? "true" : "false"); |
| } |
| |
| void HTMLElement::click() { |
| DispatchSimulatedClick(nullptr, kSendNoEvents, |
| SimulatedClickCreationScope::kFromScript); |
| } |
| |
| void HTMLElement::AccessKeyAction(bool send_mouse_events) { |
| DispatchSimulatedClick( |
| nullptr, send_mouse_events ? kSendMouseUpDownEvents : kSendNoEvents); |
| } |
| |
| String HTMLElement::title() const { |
| return FastGetAttribute(kTitleAttr); |
| } |
| |
| int HTMLElement::tabIndex() const { |
| if (SupportsFocus()) |
| return Element::tabIndex(); |
| return -1; |
| } |
| |
| TranslateAttributeMode HTMLElement::GetTranslateAttributeMode() const { |
| const AtomicString& value = getAttribute(kTranslateAttr); |
| |
| if (value == g_null_atom) |
| return kTranslateAttributeInherit; |
| if (DeprecatedEqualIgnoringCase(value, "yes") || |
| DeprecatedEqualIgnoringCase(value, "")) |
| return kTranslateAttributeYes; |
| if (DeprecatedEqualIgnoringCase(value, "no")) |
| return kTranslateAttributeNo; |
| |
| return kTranslateAttributeInherit; |
| } |
| |
| bool HTMLElement::translate() const { |
| for (const HTMLElement* element = this; element; |
| element = Traversal<HTMLElement>::FirstAncestor(*element)) { |
| TranslateAttributeMode mode = element->GetTranslateAttributeMode(); |
| if (mode != kTranslateAttributeInherit) { |
| DCHECK(mode == kTranslateAttributeYes || mode == kTranslateAttributeNo); |
| return mode == kTranslateAttributeYes; |
| } |
| } |
| |
| // Default on the root element is translate=yes. |
| return true; |
| } |
| |
| void HTMLElement::setTranslate(bool enable) { |
| setAttribute(kTranslateAttr, 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, ltr_value, ("ltr")); |
| DEFINE_STATIC_LOCAL(const AtomicString, rtl_value, ("rtl")); |
| DEFINE_STATIC_LOCAL(const AtomicString, auto_value, ("auto")); |
| |
| if (DeprecatedEqualIgnoringCase(value, ltr_value)) |
| return ltr_value; |
| if (DeprecatedEqualIgnoringCase(value, rtl_value)) |
| return rtl_value; |
| if (DeprecatedEqualIgnoringCase(value, auto_value)) |
| return auto_value; |
| return g_null_atom; |
| } |
| |
| const AtomicString& HTMLElement::dir() { |
| return ToValidDirValue(FastGetAttribute(kDirAttr)); |
| } |
| |
| void HTMLElement::setDir(const AtomicString& value) { |
| setAttribute(kDirAttr, 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(kDirAttr)); |
| } |
| |
| 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(kDirAttr); |
| return (IsHTMLBDIElement(*this) && direction == g_null_atom) || |
| DeprecatedEqualIgnoringCase(direction, "auto"); |
| } |
| |
| TextDirection HTMLElement::DirectionalityIfhasDirAutoAttribute( |
| bool& is_auto) const { |
| is_auto = HasDirectionAuto(); |
| if (!is_auto) |
| return TextDirection::kLtr; |
| return Directionality(); |
| } |
| |
| TextDirection HTMLElement::Directionality( |
| Node** strong_directionality_text_node) const { |
| if (auto* input_element = ToHTMLInputElementOrNull(*this)) { |
| bool has_strong_directionality; |
| TextDirection text_direction = DetermineDirectionality( |
| input_element->value(), &has_strong_directionality); |
| if (strong_directionality_text_node) { |
| *strong_directionality_text_node = |
| has_strong_directionality |
| ? const_cast<HTMLInputElement*>(input_element) |
| : nullptr; |
| } |
| return text_direction; |
| } |
| |
| Node* node = FlatTreeTraversal::FirstChild(*this); |
| while (node) { |
| // Skip bdi, script, style and text form controls. |
| if (DeprecatedEqualIgnoringCase(node->nodeName(), "bdi") || |
| IsHTMLScriptElement(*node) || IsHTMLStyleElement(*node) || |
| (node->IsElementNode() && ToElement(node)->IsTextControl()) || |
| (node->IsElementNode() && |
| ToElement(node)->ShadowPseudoId() == "-webkit-input-placeholder")) { |
| node = FlatTreeTraversal::NextSkippingChildren(*node, this); |
| continue; |
| } |
| |
| // Skip elements with valid dir attribute |
| if (node->IsElementNode()) { |
| AtomicString dir_attribute_value = |
| ToElement(node)->FastGetAttribute(kDirAttr); |
| if (IsValidDirAttribute(dir_attribute_value)) { |
| node = FlatTreeTraversal::NextSkippingChildren(*node, this); |
| continue; |
| } |
| } |
| |
| if (node->IsTextNode()) { |
| bool has_strong_directionality; |
| TextDirection text_direction = DetermineDirectionality( |
| node->textContent(true), &has_strong_directionality); |
| if (has_strong_directionality) { |
| if (strong_directionality_text_node) |
| *strong_directionality_text_node = node; |
| return text_direction; |
| } |
| } |
| node = FlatTreeTraversal::Next(*node, this); |
| } |
| if (strong_directionality_text_node) |
| *strong_directionality_text_node = nullptr; |
| return TextDirection::kLtr; |
| } |
| |
| bool HTMLElement::SelfOrAncestorHasDirAutoAttribute() const { |
| // TODO(esprehn): Storing this state in the computed style is bad, we |
| // should be able to answer questions about the shape of the DOM and the |
| // text contained inside it without having style. |
| if (const ComputedStyle* style = GetComputedStyle()) |
| return style->SelfOrAncestorHasDirAutoAttribute(); |
| return false; |
| } |
| |
| void HTMLElement::AdjustDirectionalityIfNeededAfterChildAttributeChanged( |
| Element* child) { |
| DCHECK(SelfOrAncestorHasDirAutoAttribute()); |
| const ComputedStyle* style = GetComputedStyle(); |
| if (style && style->Direction() != Directionality()) { |
| for (Element* element_to_adjust = this; element_to_adjust; |
| element_to_adjust = |
| FlatTreeTraversal::ParentElement(*element_to_adjust)) { |
| if (ElementAffectsDirectionality(element_to_adjust)) { |
| element_to_adjust->SetNeedsStyleRecalc( |
| kLocalStyleChange, StyleChangeReasonForTracing::Create( |
| style_change_reason::kWritingModeChange)); |
| return; |
| } |
| } |
| } |
| } |
| |
| void HTMLElement::CalculateAndAdjustDirectionality() { |
| TextDirection text_direction = Directionality(); |
| const ComputedStyle* style = GetComputedStyle(); |
| if (style && style->Direction() != text_direction) { |
| SetNeedsStyleRecalc(kLocalStyleChange, |
| StyleChangeReasonForTracing::Create( |
| style_change_reason::kWritingModeChange)); |
| } |
| } |
| |
| void HTMLElement::AdjustDirectionalityIfNeededAfterChildrenChanged( |
| const ChildrenChange& change) { |
| if (!SelfOrAncestorHasDirAutoAttribute()) |
| return; |
| |
| UpdateDistributionForFlatTreeTraversal(); |
| |
| for (Element* element_to_adjust = this; element_to_adjust; |
| element_to_adjust = |
| FlatTreeTraversal::ParentElement(*element_to_adjust)) { |
| if (ElementAffectsDirectionality(element_to_adjust)) { |
| ToHTMLElement(element_to_adjust)->CalculateAndAdjustDirectionality(); |
| return; |
| } |
| } |
| } |
| |
| Node::InsertionNotificationRequest HTMLElement::InsertedInto( |
| ContainerNode& insertion_point) { |
| // Process the superclass first to ensure that `InActiveDocument()` is |
| // updated. |
| Element::InsertedInto(insertion_point); |
| |
| if (GetDocument().GetContentSecurityPolicy()->HasHeaderDeliveredPolicy() && |
| InActiveDocument() && FastHasAttribute(kNonceAttr)) { |
| setAttribute(kNonceAttr, g_empty_atom); |
| } |
| |
| return kInsertionDone; |
| } |
| |
| void HTMLElement::AddHTMLLengthToStyle(MutableCSSPropertyValueSet* style, |
| CSSPropertyID property_id, |
| const String& value, |
| AllowPercentage allow_percentage) { |
| HTMLDimension dimension; |
| if (!ParseDimensionValue(value, dimension)) |
| return; |
| if (property_id == CSSPropertyWidth && |
| (dimension.IsPercentage() || dimension.IsRelative())) { |
| UseCounter::Count(GetDocument(), WebFeature::kHTMLElementDeprecatedWidth); |
| } |
| if (dimension.IsRelative()) |
| return; |
| if (dimension.IsPercentage() && allow_percentage != kAllowPercentageValues) |
| return; |
| CSSPrimitiveValue::UnitType unit = |
| dimension.IsPercentage() ? CSSPrimitiveValue::UnitType::kPercentage |
| : CSSPrimitiveValue::UnitType::kPixels; |
| AddPropertyToPresentationAttributeStyle(style, property_id, dimension.Value(), |
| unit); |
| } |
| |
| static RGBA32 ParseColorStringWithCrazyLegacyRules(const String& color_string) { |
| // Per spec, only look at the first 128 digits of the string. |
| const size_t kMaxColorLength = 128; |
| // We'll pad the buffer with two extra 0s later, so reserve two more than the |
| // max. |
| Vector<char, kMaxColorLength + 2> digit_buffer; |
| |
| wtf_size_t i = 0; |
| // Skip a leading #. |
| if (color_string[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 < color_string.length() && digit_buffer.size() < kMaxColorLength; |
| i++) { |
| if (!IsASCIIHexDigit(color_string[i])) |
| digit_buffer.push_back('0'); |
| else |
| digit_buffer.push_back(color_string[i]); |
| } |
| |
| if (!digit_buffer.size()) |
| return Color::kBlack; |
| |
| // Pad the buffer out to at least the next multiple of three in size. |
| digit_buffer.push_back('0'); |
| digit_buffer.push_back('0'); |
| |
| if (digit_buffer.size() < 6) |
| return MakeRGB(ToASCIIHexValue(digit_buffer[0]), |
| ToASCIIHexValue(digit_buffer[1]), |
| ToASCIIHexValue(digit_buffer[2])); |
| |
| // Split the digits into three components, then search the last 8 digits of |
| // each component. |
| DCHECK_GE(digit_buffer.size(), 6u); |
| wtf_size_t component_length = digit_buffer.size() / 3; |
| wtf_size_t component_search_window_length = |
| std::min<wtf_size_t>(component_length, 8); |
| wtf_size_t red_index = component_length - component_search_window_length; |
| wtf_size_t green_index = |
| component_length * 2 - component_search_window_length; |
| wtf_size_t blue_index = component_length * 3 - component_search_window_length; |
| // Skip digits until one of them is non-zero, or we've only got two digits |
| // left in the component. |
| while (digit_buffer[red_index] == '0' && digit_buffer[green_index] == '0' && |
| digit_buffer[blue_index] == '0' && |
| (component_length - red_index) > 2) { |
| red_index++; |
| green_index++; |
| blue_index++; |
| } |
| DCHECK_LT(red_index + 1, component_length); |
| DCHECK_GE(green_index, component_length); |
| DCHECK_LT(green_index + 1, component_length * 2); |
| DCHECK_GE(blue_index, component_length * 2); |
| SECURITY_DCHECK(blue_index + 1 < digit_buffer.size()); |
| |
| int red_value = |
| ToASCIIHexValue(digit_buffer[red_index], digit_buffer[red_index + 1]); |
| int green_value = |
| ToASCIIHexValue(digit_buffer[green_index], digit_buffer[green_index + 1]); |
| int blue_value = |
| ToASCIIHexValue(digit_buffer[blue_index], digit_buffer[blue_index + 1]); |
| return MakeRGB(red_value, green_value, blue_value); |
| } |
| |
| // Color parsing that matches HTML's "rules for parsing a legacy color value" |
| bool HTMLElement::ParseColorWithLegacyRules(const String& attribute_value, |
| Color& parsed_color) { |
| // An empty string doesn't apply a color. (One containing only whitespace |
| // does, which is why this check occurs before stripping.) |
| if (attribute_value.IsEmpty()) |
| return false; |
| |
| String color_string = attribute_value.StripWhiteSpace(); |
| |
| // "transparent" doesn't apply a color either. |
| if (DeprecatedEqualIgnoringCase(color_string, "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 ((color_string.length() == 4 || color_string.length() == 7) && |
| color_string[0] == '#') |
| success = parsed_color.SetFromString(color_string); |
| if (!success) |
| success = parsed_color.SetNamedColor(color_string); |
| if (!success) { |
| parsed_color.SetRGB(ParseColorStringWithCrazyLegacyRules(color_string)); |
| success = true; |
| } |
| |
| return success; |
| } |
| |
| void HTMLElement::AddHTMLColorToStyle(MutableCSSPropertyValueSet* style, |
| CSSPropertyID property_id, |
| const String& attribute_value) { |
| Color parsed_color; |
| if (!ParseColorWithLegacyRules(attribute_value, parsed_color)) |
| return; |
| |
| style->SetProperty(property_id, *CSSColorValue::Create(parsed_color.Rgb())); |
| } |
| |
| bool HTMLElement::IsInteractiveContent() const { |
| return false; |
| } |
| |
| void HTMLElement::DefaultEventHandler(Event& event) { |
| if (event.type() == event_type_names::kKeypress && event.IsKeyboardEvent()) { |
| HandleKeypressEvent(ToKeyboardEvent(event)); |
| if (event.DefaultHandled()) |
| return; |
| } |
| |
| Element::DefaultEventHandler(event); |
| } |
| |
| bool HTMLElement::MatchesReadOnlyPseudoClass() const { |
| return !MatchesReadWritePseudoClass(); |
| } |
| |
| bool HTMLElement::MatchesReadWritePseudoClass() const { |
| if (FastHasAttribute(kContenteditableAttr)) { |
| const AtomicString& value = FastGetAttribute(kContenteditableAttr); |
| |
| if (value.IsEmpty() || DeprecatedEqualIgnoringCase(value, "true") || |
| DeprecatedEqualIgnoringCase(value, "plaintext-only")) |
| return true; |
| if (DeprecatedEqualIgnoringCase(value, "false")) |
| return false; |
| // All other values should be treated as "inherit". |
| } |
| |
| return parentElement() && HasEditableStyle(*parentElement()); |
| } |
| |
| void HTMLElement::HandleKeypressEvent(KeyboardEvent& event) { |
| if (!IsSpatialNavigationEnabled(GetDocument().GetFrame()) || !SupportsFocus()) |
| return; |
| GetDocument().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 (IsTextControl() || HasEditableStyle(*this)) |
| return; |
| int char_code = event.charCode(); |
| if (char_code == '\r' || char_code == ' ') { |
| DispatchSimulatedClick(&event); |
| event.SetDefaultHandled(); |
| } |
| } |
| |
| int HTMLElement::offsetLeftForBinding() { |
| GetDocument().EnsurePaintLocationDataValidForNode(this); |
| Element* offset_parent = unclosedOffsetParent(); |
| if (LayoutBoxModelObject* layout_object = GetLayoutBoxModelObject()) |
| return AdjustForAbsoluteZoom::AdjustLayoutUnit( |
| LayoutUnit(layout_object->PixelSnappedOffsetLeft(offset_parent)), |
| layout_object->StyleRef()) |
| .Round(); |
| return 0; |
| } |
| |
| int HTMLElement::offsetTopForBinding() { |
| GetDocument().EnsurePaintLocationDataValidForNode(this); |
| Element* offset_parent = unclosedOffsetParent(); |
| if (LayoutBoxModelObject* layout_object = GetLayoutBoxModelObject()) |
| return AdjustForAbsoluteZoom::AdjustLayoutUnit( |
| LayoutUnit(layout_object->PixelSnappedOffsetTop(offset_parent)), |
| layout_object->StyleRef()) |
| .Round(); |
| return 0; |
| } |
| |
| int HTMLElement::offsetWidthForBinding() { |
| GetDocument().EnsurePaintLocationDataValidForNode(this); |
| Element* offset_parent = unclosedOffsetParent(); |
| if (LayoutBoxModelObject* layout_object = GetLayoutBoxModelObject()) |
| return AdjustForAbsoluteZoom::AdjustLayoutUnit( |
| LayoutUnit( |
| layout_object->PixelSnappedOffsetWidth(offset_parent)), |
| layout_object->StyleRef()) |
| .Round(); |
| return 0; |
| } |
| |
| DISABLE_CFI_PERF |
| int HTMLElement::offsetHeightForBinding() { |
| GetDocument().EnsurePaintLocationDataValidForNode(this); |
| Element* offset_parent = unclosedOffsetParent(); |
| if (LayoutBoxModelObject* layout_object = GetLayoutBoxModelObject()) |
| return AdjustForAbsoluteZoom::AdjustLayoutUnit( |
| LayoutUnit( |
| layout_object->PixelSnappedOffsetHeight(offset_parent)), |
| layout_object->StyleRef()) |
| .Round(); |
| return 0; |
| } |
| |
| Element* HTMLElement::unclosedOffsetParent() { |
| GetDocument().UpdateStyleAndLayoutIgnorePendingStylesheetsForNode(this); |
| |
| LayoutObject* layout_object = GetLayoutObject(); |
| if (!layout_object) |
| return nullptr; |
| |
| return layout_object->OffsetParent(this); |
| } |
| |
| void HTMLElement::OnDirAttrChanged(const AttributeModificationParams& params) { |
| // If an ancestor has dir=auto, and this node has the first character, |
| // changes to dir attribute may affect the ancestor. |
| if (!CanParticipateInFlatTree()) |
| return; |
| UpdateDistributionForFlatTreeTraversal(); |
| Element* parent = FlatTreeTraversal::ParentElement(*this); |
| if (parent && parent->IsHTMLElement() && |
| ToHTMLElement(parent)->SelfOrAncestorHasDirAutoAttribute()) { |
| ToHTMLElement(parent) |
| ->AdjustDirectionalityIfNeededAfterChildAttributeChanged(this); |
| } |
| |
| if (DeprecatedEqualIgnoringCase(params.new_value, "auto")) |
| CalculateAndAdjustDirectionality(); |
| } |
| |
| void HTMLElement::OnInertAttrChanged( |
| const AttributeModificationParams& params) { |
| UpdateDistributionForUnknownReasons(); |
| if (GetDocument().GetFrame()) { |
| GetDocument().GetFrame()->SetIsInert(GetDocument().LocalOwner() && |
| GetDocument().LocalOwner()->IsInert()); |
| } |
| } |
| |
| void HTMLElement::OnLangAttrChanged(const AttributeModificationParams& params) { |
| PseudoStateChanged(CSSSelector::kPseudoLang); |
| } |
| |
| void HTMLElement::OnNonceAttrChanged( |
| const AttributeModificationParams& params) { |
| if (params.new_value != g_empty_atom) |
| setNonce(params.new_value); |
| } |
| |
| void HTMLElement::OnTabIndexAttrChanged( |
| const AttributeModificationParams& params) { |
| Element::ParseAttribute(params); |
| } |
| |
| void HTMLElement::OnXMLLangAttrChanged( |
| const AttributeModificationParams& params) { |
| Element::ParseAttribute(params); |
| } |
| |
| ElementInternals* HTMLElement::attachInternals( |
| ExceptionState& exception_state) { |
| auto* definition = |
| CustomElement::Registry(*this)->DefinitionForName(localName()); |
| if (!definition) { |
| exception_state.ThrowDOMException( |
| DOMExceptionCode::kInvalidStateError, |
| "Unable to attach ElementInternals to non-custom elements."); |
| return nullptr; |
| } |
| if (definition->DisableInternals()) { |
| exception_state.ThrowDOMException( |
| DOMExceptionCode::kInvalidStateError, |
| "ElementInternals is disabled by disabledFeature static field."); |
| return nullptr; |
| } |
| if (DidAttachInternals()) { |
| exception_state.ThrowDOMException( |
| DOMExceptionCode::kInvalidStateError, |
| "ElementInternals for the specified element was already attached."); |
| return nullptr; |
| } |
| SetDidAttachInternals(); |
| return MakeGarbageCollected<ElementInternals>(*this); |
| } |
| |
| } // namespace blink |
| |
| #ifndef NDEBUG |
| |
| // For use in the debugger |
| void dumpInnerHTML(blink::HTMLElement*); |
| |
| void dumpInnerHTML(blink::HTMLElement* element) { |
| printf("%s\n", element->InnerHTMLAsString().Ascii().data()); |
| } |
| #endif |
