4678 lines
162 KiB
C++
4678 lines
162 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* (C) 2001 Peter Kelly (pmk@post.com)
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* (C) 2001 Dirk Mueller (mueller@kde.org)
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* (C) 2007 David Smith (catfish.man@gmail.com)
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* Copyright (C) 2004-2020 Apple Inc. All rights reserved.
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* (C) 2007 Eric Seidel (eric@webkit.org)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "Element.h"
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#include "AXObjectCache.h"
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#include "Attr.h"
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#include "AttributeChangeInvalidation.h"
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#include "CSSParser.h"
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#include "Chrome.h"
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#include "ChromeClient.h"
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#include "ClassChangeInvalidation.h"
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#include "ComposedTreeAncestorIterator.h"
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#include "ComposedTreeIterator.h"
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#include "ContainerNodeAlgorithms.h"
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#include "CustomElementReactionQueue.h"
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#include "CustomElementRegistry.h"
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#include "DOMRect.h"
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#include "DOMRectList.h"
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#include "DOMTokenList.h"
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#include "DOMWindow.h"
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#include "DocumentSharedObjectPool.h"
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#include "DocumentTimeline.h"
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#include "Editing.h"
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#include "ElementAnimationRareData.h"
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#include "ElementIterator.h"
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#include "ElementRareData.h"
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#include "EventDispatcher.h"
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#include "EventHandler.h"
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#include "EventNames.h"
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#include "FocusController.h"
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#include "FocusEvent.h"
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#include "Frame.h"
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#include "FrameSelection.h"
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#include "FrameView.h"
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#include "FullscreenManager.h"
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#include "GetAnimationsOptions.h"
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#include "HTMLBodyElement.h"
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#include "HTMLCanvasElement.h"
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#include "HTMLDocument.h"
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#include "HTMLHtmlElement.h"
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#include "HTMLLabelElement.h"
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#include "HTMLNameCollection.h"
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#include "HTMLObjectElement.h"
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#include "HTMLOptGroupElement.h"
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#include "HTMLOptionElement.h"
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#include "HTMLParserIdioms.h"
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#include "HTMLSelectElement.h"
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#include "HTMLTemplateElement.h"
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#include "IdChangeInvalidation.h"
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#include "IdTargetObserverRegistry.h"
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#include "InspectorInstrumentation.h"
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#include "JSLazyEventListener.h"
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#include "KeyboardEvent.h"
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#include "KeyframeAnimationOptions.h"
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#include "KeyframeEffect.h"
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#include "Logging.h"
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#include "MutationObserverInterestGroup.h"
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#include "MutationRecord.h"
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#include "NodeRenderStyle.h"
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#include "PlatformMouseEvent.h"
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#include "PlatformWheelEvent.h"
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#include "PointerCaptureController.h"
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#include "PointerEvent.h"
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#include "PointerLockController.h"
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#include "PseudoClassChangeInvalidation.h"
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#include "Quirks.h"
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#include "RenderFragmentedFlow.h"
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#include "RenderLayer.h"
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#include "RenderLayerBacking.h"
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#include "RenderLayerCompositor.h"
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#include "RenderLayerScrollableArea.h"
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#include "RenderListBox.h"
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#include "RenderTheme.h"
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#include "RenderTreeUpdater.h"
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#include "RenderView.h"
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#include "RenderWidget.h"
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#include "RuntimeEnabledFeatures.h"
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#include "SVGDocumentExtensions.h"
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#include "SVGElement.h"
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#include "SVGNames.h"
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#include "SVGSVGElement.h"
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#include "ScriptDisallowedScope.h"
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#include "ScrollIntoViewOptions.h"
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#include "ScrollLatchingController.h"
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#include "SelectorQuery.h"
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#include "Settings.h"
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#include "ShadowRootInit.h"
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#include "SimulatedClick.h"
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#include "SlotAssignment.h"
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#include "StyleInvalidator.h"
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#include "StyleProperties.h"
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#include "StyleResolver.h"
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#include "StyleScope.h"
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#include "StyleTreeResolver.h"
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#include "TextIterator.h"
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#include "TouchAction.h"
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#include "VoidCallback.h"
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#include "WebAnimation.h"
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#include "WebAnimationTypes.h"
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#include "WheelEvent.h"
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#include "XLinkNames.h"
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#include "XMLNSNames.h"
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#include "XMLNames.h"
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#include "markup.h"
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#include <wtf/IsoMallocInlines.h>
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#include <wtf/NeverDestroyed.h>
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#include <wtf/text/CString.h>
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#include <wtf/text/TextStream.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(Element);
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using namespace HTMLNames;
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using namespace XMLNames;
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static HashMap<Element*, Vector<RefPtr<Attr>>>& attrNodeListMap()
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{
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static NeverDestroyed<HashMap<Element*, Vector<RefPtr<Attr>>>> map;
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return map;
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}
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static Vector<RefPtr<Attr>>* attrNodeListForElement(Element& element)
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{
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if (!element.hasSyntheticAttrChildNodes())
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return nullptr;
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ASSERT(attrNodeListMap().contains(&element));
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return &attrNodeListMap().find(&element)->value;
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}
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static Vector<RefPtr<Attr>>& ensureAttrNodeListForElement(Element& element)
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{
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if (element.hasSyntheticAttrChildNodes()) {
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ASSERT(attrNodeListMap().contains(&element));
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return attrNodeListMap().find(&element)->value;
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}
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ASSERT(!attrNodeListMap().contains(&element));
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element.setHasSyntheticAttrChildNodes(true);
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return attrNodeListMap().add(&element, Vector<RefPtr<Attr>>()).iterator->value;
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}
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static void removeAttrNodeListForElement(Element& element)
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{
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ASSERT(element.hasSyntheticAttrChildNodes());
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ASSERT(attrNodeListMap().contains(&element));
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attrNodeListMap().remove(&element);
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element.setHasSyntheticAttrChildNodes(false);
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}
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static Attr* findAttrNodeInList(Vector<RefPtr<Attr>>& attrNodeList, const QualifiedName& name)
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{
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for (auto& node : attrNodeList) {
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if (node->qualifiedName().matches(name))
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return node.get();
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}
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return nullptr;
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}
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static Attr* findAttrNodeInList(Vector<RefPtr<Attr>>& attrNodeList, const AtomString& localName, bool shouldIgnoreAttributeCase)
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{
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const AtomString& caseAdjustedName = shouldIgnoreAttributeCase ? localName.convertToASCIILowercase() : localName;
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for (auto& node : attrNodeList) {
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if (node->qualifiedName().localName() == caseAdjustedName)
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return node.get();
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}
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return nullptr;
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}
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Ref<Element> Element::create(const QualifiedName& tagName, Document& document)
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{
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return adoptRef(*new Element(tagName, document, CreateElement));
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}
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Element::Element(const QualifiedName& tagName, Document& document, ConstructionType type)
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: ContainerNode(document, type)
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, m_tagName(tagName)
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{
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}
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Element::~Element()
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{
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ASSERT(!beforePseudoElement());
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ASSERT(!afterPseudoElement());
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#if ENABLE(INTERSECTION_OBSERVER)
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disconnectFromIntersectionObservers();
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#endif
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#if ENABLE(RESIZE_OBSERVER)
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disconnectFromResizeObservers();
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#endif
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removeShadowRoot();
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if (hasSyntheticAttrChildNodes())
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detachAllAttrNodesFromElement();
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#if ENABLE(CSS_TYPED_OM)
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if (hasRareData()) {
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if (auto* map = elementRareData()->attributeStyleMap())
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map->clearElement();
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}
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#endif
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if (hasPendingResources()) {
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document().accessSVGExtensions().removeElementFromPendingResources(*this);
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ASSERT(!hasPendingResources());
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}
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}
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inline ElementRareData* Element::elementRareData() const
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{
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ASSERT_WITH_SECURITY_IMPLICATION(hasRareData());
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return static_cast<ElementRareData*>(rareData());
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}
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inline ElementRareData& Element::ensureElementRareData()
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{
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return static_cast<ElementRareData&>(ensureRareData());
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}
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inline void Node::setTabIndexState(TabIndexState state)
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{
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auto bitfields = rareDataBitfields();
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bitfields.tabIndexState = static_cast<uint16_t>(state);
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setRareDataBitfields(bitfields);
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}
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void Element::setTabIndexExplicitly(std::optional<int> tabIndex)
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{
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if (!tabIndex) {
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setTabIndexState(TabIndexState::NotSet);
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return;
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}
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setTabIndexState([this, value = tabIndex.value()]() {
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switch (value) {
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case 0:
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return TabIndexState::Zero;
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case -1:
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return TabIndexState::NegativeOne;
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default:
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ensureElementRareData().setUnusualTabIndex(value);
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return TabIndexState::InRareData;
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}
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}());
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}
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std::optional<int> Element::tabIndexSetExplicitly() const
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{
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switch (tabIndexState()) {
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case TabIndexState::NotSet:
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return std::nullopt;
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case TabIndexState::Zero:
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return 0;
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case TabIndexState::NegativeOne:
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return -1;
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case TabIndexState::InRareData:
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ASSERT(hasRareData());
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return elementRareData()->unusualTabIndex();
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}
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ASSERT_NOT_REACHED();
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return std::nullopt;
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}
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int Element::defaultTabIndex() const
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{
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return -1;
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}
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bool Element::supportsFocus() const
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{
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return !!tabIndexSetExplicitly();
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}
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RefPtr<Element> Element::focusDelegate()
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{
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return this;
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}
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int Element::tabIndexForBindings() const
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{
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return valueOrCompute(tabIndexSetExplicitly(), [&] { return defaultTabIndex(); });
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}
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void Element::setTabIndexForBindings(int value)
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{
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setIntegralAttribute(tabindexAttr, value);
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}
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bool Element::isKeyboardFocusable(KeyboardEvent*) const
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{
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if (!(isFocusable() && !shouldBeIgnoredInSequentialFocusNavigation() && tabIndexSetExplicitly().value_or(0) >= 0))
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return false;
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if (auto* root = shadowRoot()) {
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if (root->delegatesFocus())
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return false;
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}
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return true;
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}
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bool Element::isMouseFocusable() const
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{
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return isFocusable();
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}
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bool Element::shouldUseInputMethod()
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{
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return computeEditability(UserSelectAllIsAlwaysNonEditable, ShouldUpdateStyle::Update) != Editability::ReadOnly;
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}
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static bool isForceEvent(const PlatformMouseEvent& platformEvent)
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{
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return platformEvent.type() == PlatformEvent::MouseForceChanged || platformEvent.type() == PlatformEvent::MouseForceDown || platformEvent.type() == PlatformEvent::MouseForceUp;
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}
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static bool isCompatibilityMouseEvent(const MouseEvent& mouseEvent)
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{
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// https://www.w3.org/TR/pointerevents/#compatibility-mapping-with-mouse-events
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const auto& type = mouseEvent.type();
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return type != eventNames().clickEvent && type != eventNames().mouseoverEvent && type != eventNames().mouseoutEvent && type != eventNames().mouseenterEvent && type != eventNames().mouseleaveEvent;
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}
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enum class ShouldIgnoreMouseEvent : bool { No, Yes };
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static ShouldIgnoreMouseEvent dispatchPointerEventIfNeeded(Element& element, const MouseEvent& mouseEvent, const PlatformMouseEvent& platformEvent, bool& didNotSwallowEvent)
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{
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if (auto* page = element.document().page()) {
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auto& pointerCaptureController = page->pointerCaptureController();
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#if ENABLE(TOUCH_EVENTS)
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if (platformEvent.pointerId() != mousePointerID && mouseEvent.type() != eventNames().clickEvent && pointerCaptureController.preventsCompatibilityMouseEventsForIdentifier(platformEvent.pointerId()))
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return ShouldIgnoreMouseEvent::Yes;
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#else
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UNUSED_PARAM(platformEvent);
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#endif
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if (platformEvent.syntheticClickType() != NoTap)
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return ShouldIgnoreMouseEvent::No;
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if (auto pointerEvent = pointerCaptureController.pointerEventForMouseEvent(mouseEvent, platformEvent.pointerId(), platformEvent.pointerType())) {
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pointerCaptureController.dispatchEvent(*pointerEvent, &element);
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if (isCompatibilityMouseEvent(mouseEvent) && pointerCaptureController.preventsCompatibilityMouseEventsForIdentifier(pointerEvent->pointerId()))
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return ShouldIgnoreMouseEvent::Yes;
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if (pointerEvent->defaultPrevented() || pointerEvent->defaultHandled()) {
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didNotSwallowEvent = false;
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if (pointerEvent->type() == eventNames().pointerdownEvent)
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return ShouldIgnoreMouseEvent::Yes;
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}
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}
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}
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return ShouldIgnoreMouseEvent::No;
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}
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bool Element::dispatchMouseEvent(const PlatformMouseEvent& platformEvent, const AtomString& eventType, int detail, Element* relatedTarget, IsSyntheticClick isSyntheticClick)
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{
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if (isDisabledFormControl())
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return false;
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if (isForceEvent(platformEvent) && !document().hasListenerTypeForEventType(platformEvent.type()))
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return false;
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Ref<MouseEvent> mouseEvent = MouseEvent::create(eventType, document().windowProxy(), platformEvent, detail, relatedTarget);
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if (mouseEvent->type().isEmpty())
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return true; // Shouldn't happen.
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Ref protectedThis { *this };
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bool didNotSwallowEvent = true;
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if (dispatchPointerEventIfNeeded(*this, mouseEvent.get(), platformEvent, didNotSwallowEvent) == ShouldIgnoreMouseEvent::Yes)
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return false;
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auto isParentProcessAFullWebBrowser = false;
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#if PLATFORM(IOS_FAMILY)
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if (Frame* frame = document().frame())
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isParentProcessAFullWebBrowser = frame->loader().client().isParentProcessAFullWebBrowser();
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#elif PLATFORM(MAC)
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isParentProcessAFullWebBrowser = MacApplication::isSafari();
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#endif
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if (Quirks::StorageAccessResult::ShouldCancelEvent == document().quirks().triggerOptionalStorageAccessQuirk(*this, platformEvent, eventType, detail, relatedTarget, isParentProcessAFullWebBrowser, isSyntheticClick))
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return false;
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ASSERT(!mouseEvent->target() || mouseEvent->target() != relatedTarget);
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dispatchEvent(mouseEvent);
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if (mouseEvent->defaultPrevented() || mouseEvent->defaultHandled())
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didNotSwallowEvent = false;
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if (mouseEvent->type() == eventNames().clickEvent && mouseEvent->detail() == 2) {
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// Special case: If it's a double click event, we also send the dblclick event. This is not part
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// of the DOM specs, but is used for compatibility with the ondblclick="" attribute. This is treated
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// as a separate event in other DOM-compliant browsers like Firefox, and so we do the same.
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// FIXME: Is it okay that mouseEvent may have been mutated by scripts via initMouseEvent in dispatchEvent above?
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Ref<MouseEvent> doubleClickEvent = MouseEvent::create(eventNames().dblclickEvent,
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mouseEvent->bubbles() ? Event::CanBubble::Yes : Event::CanBubble::No,
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mouseEvent->cancelable() ? Event::IsCancelable::Yes : Event::IsCancelable::No,
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Event::IsComposed::Yes,
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mouseEvent->view(), mouseEvent->detail(),
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mouseEvent->screenX(), mouseEvent->screenY(), mouseEvent->clientX(), mouseEvent->clientY(),
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mouseEvent->modifierKeys(), mouseEvent->button(), mouseEvent->buttons(), mouseEvent->syntheticClickType(), relatedTarget);
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if (mouseEvent->defaultHandled())
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doubleClickEvent->setDefaultHandled();
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dispatchEvent(doubleClickEvent);
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if (doubleClickEvent->defaultHandled() || doubleClickEvent->defaultPrevented())
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return false;
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}
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return didNotSwallowEvent;
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}
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bool Element::dispatchWheelEvent(const PlatformWheelEvent& platformEvent, OptionSet<EventHandling>& processing, Event::IsCancelable isCancelable)
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{
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auto event = WheelEvent::create(platformEvent, document().windowProxy(), isCancelable);
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// Events with no deltas are important because they convey platform information about scroll gestures
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// and momentum beginning or ending. However, those events should not be sent to the DOM since some
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// websites will break. They need to be dispatched because dispatching them will call into the default
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// event handler, and our platform code will correctly handle the phase changes. Calling stopPropagation()
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// will prevent the event from being sent to the DOM, but will still call the default event handler.
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// FIXME: Move this logic into WheelEvent::create.
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if (platformEvent.delta().isZero())
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event->stopPropagation();
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else
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processing.add(EventHandling::DispatchedToDOM);
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dispatchEvent(event);
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LOG_WITH_STREAM(Scrolling, stream << "Element " << *this << " dispatchWheelEvent: (cancelable " << event->cancelable() << ") defaultPrevented " << event->defaultPrevented() << " defaultHandled " << event->defaultHandled());
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if (event->defaultPrevented())
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processing.add(EventHandling::DefaultPrevented);
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if (event->defaultHandled())
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processing.add(EventHandling::DefaultHandled);
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return !event->defaultPrevented() && !event->defaultHandled();
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}
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bool Element::dispatchKeyEvent(const PlatformKeyboardEvent& platformEvent)
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{
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auto event = KeyboardEvent::create(platformEvent, document().windowProxy());
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if (Frame* frame = document().frame()) {
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if (frame->eventHandler().accessibilityPreventsEventPropagation(event))
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event->stopPropagation();
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}
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dispatchEvent(event);
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return !event->defaultPrevented() && !event->defaultHandled();
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}
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bool Element::dispatchSimulatedClick(Event* underlyingEvent, SimulatedClickMouseEventOptions eventOptions, SimulatedClickVisualOptions visualOptions)
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{
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return simulateClick(*this, underlyingEvent, eventOptions, visualOptions, SimulatedClickSource::UserAgent);
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}
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Ref<Node> Element::cloneNodeInternal(Document& targetDocument, CloningOperation type)
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{
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switch (type) {
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case CloningOperation::OnlySelf:
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case CloningOperation::SelfWithTemplateContent:
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return cloneElementWithoutChildren(targetDocument);
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case CloningOperation::Everything:
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break;
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}
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return cloneElementWithChildren(targetDocument);
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}
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Ref<Element> Element::cloneElementWithChildren(Document& targetDocument)
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{
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Ref<Element> clone = cloneElementWithoutChildren(targetDocument);
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cloneChildNodes(clone);
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return clone;
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}
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|
|
Ref<Element> Element::cloneElementWithoutChildren(Document& targetDocument)
|
|
{
|
|
Ref<Element> clone = cloneElementWithoutAttributesAndChildren(targetDocument);
|
|
|
|
// This will catch HTML elements in the wrong namespace that are not correctly copied.
|
|
// This is a sanity check as HTML overloads some of the DOM methods.
|
|
ASSERT(isHTMLElement() == clone->isHTMLElement());
|
|
|
|
clone->cloneDataFromElement(*this);
|
|
return clone;
|
|
}
|
|
|
|
Ref<Element> Element::cloneElementWithoutAttributesAndChildren(Document& targetDocument)
|
|
{
|
|
return targetDocument.createElement(tagQName(), false);
|
|
}
|
|
|
|
Ref<Attr> Element::detachAttribute(unsigned index)
|
|
{
|
|
ASSERT(elementData());
|
|
|
|
const Attribute& attribute = elementData()->attributeAt(index);
|
|
|
|
RefPtr<Attr> attrNode = attrIfExists(attribute.name());
|
|
if (attrNode)
|
|
detachAttrNodeFromElementWithValue(attrNode.get(), attribute.value());
|
|
else
|
|
attrNode = Attr::create(document(), attribute.name(), attribute.value());
|
|
|
|
removeAttributeInternal(index, NotInSynchronizationOfLazyAttribute);
|
|
return attrNode.releaseNonNull();
|
|
}
|
|
|
|
bool Element::removeAttribute(const QualifiedName& name)
|
|
{
|
|
if (!elementData())
|
|
return false;
|
|
|
|
unsigned index = elementData()->findAttributeIndexByName(name);
|
|
if (index == ElementData::attributeNotFound)
|
|
return false;
|
|
|
|
removeAttributeInternal(index, NotInSynchronizationOfLazyAttribute);
|
|
return true;
|
|
}
|
|
|
|
void Element::setBooleanAttribute(const QualifiedName& name, bool value)
|
|
{
|
|
if (value)
|
|
setAttribute(name, emptyAtom());
|
|
else
|
|
removeAttribute(name);
|
|
}
|
|
|
|
NamedNodeMap& Element::attributes() const
|
|
{
|
|
ElementRareData& rareData = const_cast<Element*>(this)->ensureElementRareData();
|
|
if (NamedNodeMap* attributeMap = rareData.attributeMap())
|
|
return *attributeMap;
|
|
|
|
rareData.setAttributeMap(makeUnique<NamedNodeMap>(const_cast<Element&>(*this)));
|
|
return *rareData.attributeMap();
|
|
}
|
|
|
|
Node::NodeType Element::nodeType() const
|
|
{
|
|
return ELEMENT_NODE;
|
|
}
|
|
|
|
bool Element::hasAttribute(const QualifiedName& name) const
|
|
{
|
|
return hasAttributeNS(name.namespaceURI(), name.localName());
|
|
}
|
|
|
|
void Element::synchronizeAllAttributes() const
|
|
{
|
|
if (!elementData())
|
|
return;
|
|
if (elementData()->styleAttributeIsDirty()) {
|
|
ASSERT(isStyledElement());
|
|
static_cast<const StyledElement*>(this)->synchronizeStyleAttributeInternal();
|
|
}
|
|
|
|
if (isSVGElement())
|
|
downcast<SVGElement>(const_cast<Element&>(*this)).synchronizeAllAttributes();
|
|
}
|
|
|
|
ALWAYS_INLINE void Element::synchronizeAttribute(const QualifiedName& name) const
|
|
{
|
|
if (!elementData())
|
|
return;
|
|
if (UNLIKELY(name == styleAttr && elementData()->styleAttributeIsDirty())) {
|
|
ASSERT_WITH_SECURITY_IMPLICATION(isStyledElement());
|
|
static_cast<const StyledElement*>(this)->synchronizeStyleAttributeInternal();
|
|
return;
|
|
}
|
|
|
|
if (isSVGElement())
|
|
downcast<SVGElement>(const_cast<Element&>(*this)).synchronizeAttribute(name);
|
|
}
|
|
|
|
static ALWAYS_INLINE bool isStyleAttribute(const Element& element, const AtomString& attributeLocalName)
|
|
{
|
|
if (shouldIgnoreAttributeCase(element))
|
|
return equalLettersIgnoringASCIICase(attributeLocalName, "style");
|
|
return attributeLocalName == styleAttr->localName();
|
|
}
|
|
|
|
ALWAYS_INLINE void Element::synchronizeAttribute(const AtomString& localName) const
|
|
{
|
|
// This version of synchronizeAttribute() is streamlined for the case where you don't have a full QualifiedName,
|
|
// e.g when called from DOM API.
|
|
if (!elementData())
|
|
return;
|
|
if (elementData()->styleAttributeIsDirty() && isStyleAttribute(*this, localName)) {
|
|
ASSERT_WITH_SECURITY_IMPLICATION(isStyledElement());
|
|
static_cast<const StyledElement*>(this)->synchronizeStyleAttributeInternal();
|
|
return;
|
|
}
|
|
|
|
if (isSVGElement())
|
|
downcast<SVGElement>(const_cast<Element&>(*this)).synchronizeAttribute(QualifiedName(nullAtom(), localName, nullAtom()));
|
|
}
|
|
|
|
const AtomString& Element::getAttribute(const QualifiedName& name) const
|
|
{
|
|
if (!elementData())
|
|
return nullAtom();
|
|
synchronizeAttribute(name);
|
|
if (const Attribute* attribute = findAttributeByName(name))
|
|
return attribute->value();
|
|
return nullAtom();
|
|
}
|
|
|
|
Vector<String> Element::getAttributeNames() const
|
|
{
|
|
Vector<String> attributesVector;
|
|
if (!hasAttributes())
|
|
return attributesVector;
|
|
|
|
auto attributes = attributesIterator();
|
|
attributesVector.reserveInitialCapacity(attributes.attributeCount());
|
|
for (auto& attribute : attributes)
|
|
attributesVector.uncheckedAppend(attribute.name().toString());
|
|
return attributesVector;
|
|
}
|
|
|
|
bool Element::isFocusable() const
|
|
{
|
|
if (!isConnected() || !supportsFocus() || isInert())
|
|
return false;
|
|
|
|
if (!renderer()) {
|
|
// Elements in canvas fallback content are not rendered, but they are allowed to be
|
|
// focusable as long as their canvas is displayed and visible.
|
|
if (auto* canvas = ancestorsOfType<HTMLCanvasElement>(*this).first())
|
|
return canvas->isVisibleWithoutResolvingFullStyle();
|
|
}
|
|
|
|
return isVisibleWithoutResolvingFullStyle();
|
|
}
|
|
|
|
bool Element::isUserActionElementInActiveChain() const
|
|
{
|
|
ASSERT(isUserActionElement());
|
|
return document().userActionElements().isInActiveChain(*this);
|
|
}
|
|
|
|
bool Element::isUserActionElementActive() const
|
|
{
|
|
ASSERT(isUserActionElement());
|
|
return document().userActionElements().isActive(*this);
|
|
}
|
|
|
|
bool Element::isUserActionElementFocused() const
|
|
{
|
|
ASSERT(isUserActionElement());
|
|
return document().userActionElements().isFocused(*this);
|
|
}
|
|
|
|
bool Element::isUserActionElementHovered() const
|
|
{
|
|
ASSERT(isUserActionElement());
|
|
return document().userActionElements().isHovered(*this);
|
|
}
|
|
|
|
bool Element::isUserActionElementDragged() const
|
|
{
|
|
ASSERT(isUserActionElement());
|
|
return document().userActionElements().isBeingDragged(*this);
|
|
}
|
|
|
|
bool Element::isUserActionElementHasFocusVisible() const
|
|
{
|
|
ASSERT(isUserActionElement());
|
|
return document().userActionElements().hasFocusVisible(*this);
|
|
}
|
|
|
|
bool Element::isUserActionElementHasFocusWithin() const
|
|
{
|
|
ASSERT(isUserActionElement());
|
|
return document().userActionElements().hasFocusWithin(*this);
|
|
}
|
|
|
|
void Element::setActive(bool flag, bool pause, Style::InvalidationScope invalidationScope)
|
|
{
|
|
if (flag == active())
|
|
return;
|
|
{
|
|
Style::PseudoClassChangeInvalidation styleInvalidation(*this, CSSSelector::PseudoClassActive, invalidationScope);
|
|
document().userActionElements().setActive(*this, flag);
|
|
}
|
|
|
|
if (!renderer())
|
|
return;
|
|
|
|
bool reactsToPress = false;
|
|
if (renderer()->style().hasAppearance() && renderer()->theme().stateChanged(*renderer(), ControlStates::States::Pressed))
|
|
reactsToPress = true;
|
|
|
|
// The rest of this function implements a feature that only works if the
|
|
// platform supports immediate invalidations on the ChromeClient, so bail if
|
|
// that isn't supported.
|
|
if (!document().page()->chrome().client().supportsImmediateInvalidation())
|
|
return;
|
|
|
|
if (reactsToPress && pause) {
|
|
// The delay here is subtle. It relies on an assumption, namely that the amount of time it takes
|
|
// to repaint the "down" state of the control is about the same time as it would take to repaint the
|
|
// "up" state. Once you assume this, you can just delay for 100ms - that time (assuming that after you
|
|
// leave this method, it will be about that long before the flush of the up state happens again).
|
|
#ifdef HAVE_FUNC_USLEEP
|
|
MonotonicTime startTime = MonotonicTime::now();
|
|
#endif
|
|
|
|
document().updateStyleIfNeeded();
|
|
|
|
// Do an immediate repaint.
|
|
if (renderer())
|
|
renderer()->repaint();
|
|
|
|
// FIXME: Come up with a less ridiculous way of doing this.
|
|
#ifdef HAVE_FUNC_USLEEP
|
|
// Now pause for a small amount of time (1/10th of a second from before we repainted in the pressed state)
|
|
Seconds remainingTime = 100_ms - (MonotonicTime::now() - startTime);
|
|
if (remainingTime > 0_s)
|
|
usleep(static_cast<useconds_t>(remainingTime.microseconds()));
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static bool shouldAlwaysHaveFocusVisibleWhenFocused(const Element& element)
|
|
{
|
|
return element.isTextField() || element.isContentEditable();
|
|
}
|
|
|
|
void Element::setFocus(bool flag, FocusVisibility visibility)
|
|
{
|
|
if (flag == focused())
|
|
return;
|
|
{
|
|
Style::PseudoClassChangeInvalidation focusStyleInvalidation(*this, CSSSelector::PseudoClassFocus);
|
|
Style::PseudoClassChangeInvalidation directFocusStyleInvalidation(*this, CSSSelector::PseudoClassDirectFocus);
|
|
document().userActionElements().setFocused(*this, flag);
|
|
}
|
|
|
|
// Shadow host with a slot that contain focused element is not considered focused.
|
|
for (auto* root = containingShadowRoot(); root; root = root->host()->containingShadowRoot()) {
|
|
root->setContainsFocusedElement(flag);
|
|
root->host()->invalidateStyle();
|
|
}
|
|
|
|
for (auto* element = this; element; element = element->parentElementInComposedTree())
|
|
element->setHasFocusWithin(flag);
|
|
|
|
setHasFocusVisible(flag && (visibility == FocusVisibility::Visible || shouldAlwaysHaveFocusVisibleWhenFocused(*this)));
|
|
}
|
|
|
|
void Element::setHasFocusVisible(bool flag)
|
|
{
|
|
if (!document().settings().focusVisibleEnabled())
|
|
return;
|
|
|
|
#if ASSERT_ENABLED
|
|
ASSERT(!flag || focused());
|
|
ASSERT(!focused() || !shouldAlwaysHaveFocusVisibleWhenFocused(*this) || flag);
|
|
#endif
|
|
|
|
if (hasFocusVisible() == flag)
|
|
return;
|
|
|
|
Style::PseudoClassChangeInvalidation styleInvalidation(*this, CSSSelector::PseudoClassFocusVisible);
|
|
document().userActionElements().setHasFocusVisible(*this, flag);
|
|
}
|
|
|
|
void Element::setHasFocusWithin(bool flag)
|
|
{
|
|
if (hasFocusWithin() == flag)
|
|
return;
|
|
{
|
|
Style::PseudoClassChangeInvalidation styleInvalidation(*this, CSSSelector::PseudoClassFocusWithin);
|
|
document().userActionElements().setHasFocusWithin(*this, flag);
|
|
}
|
|
}
|
|
|
|
void Element::setHovered(bool flag, Style::InvalidationScope invalidationScope)
|
|
{
|
|
if (flag == hovered())
|
|
return;
|
|
{
|
|
Style::PseudoClassChangeInvalidation styleInvalidation(*this, CSSSelector::PseudoClassHover, invalidationScope);
|
|
document().userActionElements().setHovered(*this, flag);
|
|
}
|
|
|
|
if (auto* style = renderStyle(); style && style->hasAppearance())
|
|
renderer()->theme().stateChanged(*renderer(), ControlStates::States::Hovered);
|
|
}
|
|
|
|
void Element::setBeingDragged(bool flag)
|
|
{
|
|
if (flag == isBeingDragged())
|
|
return;
|
|
|
|
Style::PseudoClassChangeInvalidation styleInvalidation(*this, CSSSelector::PseudoClassDrag);
|
|
document().userActionElements().setBeingDragged(*this, flag);
|
|
}
|
|
|
|
inline ScrollAlignment toScrollAlignmentForInlineDirection(std::optional<ScrollLogicalPosition> position, WritingMode writingMode, bool isLTR)
|
|
{
|
|
switch (position.value_or(ScrollLogicalPosition::Nearest)) {
|
|
case ScrollLogicalPosition::Start: {
|
|
switch (writingMode) {
|
|
case WritingMode::TopToBottom:
|
|
case WritingMode::BottomToTop: {
|
|
return isLTR ? ScrollAlignment::alignLeftAlways : ScrollAlignment::alignRightAlways;
|
|
}
|
|
case WritingMode::LeftToRight:
|
|
case WritingMode::RightToLeft: {
|
|
return isLTR ? ScrollAlignment::alignTopAlways : ScrollAlignment::alignBottomAlways;
|
|
}
|
|
default:
|
|
ASSERT_NOT_REACHED();
|
|
return ScrollAlignment::alignLeftAlways;
|
|
}
|
|
}
|
|
case ScrollLogicalPosition::Center:
|
|
return ScrollAlignment::alignCenterAlways;
|
|
case ScrollLogicalPosition::End: {
|
|
switch (writingMode) {
|
|
case WritingMode::TopToBottom:
|
|
case WritingMode::BottomToTop: {
|
|
return isLTR ? ScrollAlignment::alignRightAlways : ScrollAlignment::alignLeftAlways;
|
|
}
|
|
case WritingMode::LeftToRight:
|
|
case WritingMode::RightToLeft: {
|
|
return isLTR ? ScrollAlignment::alignBottomAlways : ScrollAlignment::alignTopAlways;
|
|
}
|
|
default:
|
|
ASSERT_NOT_REACHED();
|
|
return ScrollAlignment::alignRightAlways;
|
|
}
|
|
}
|
|
case ScrollLogicalPosition::Nearest:
|
|
return ScrollAlignment::alignToEdgeIfNeeded;
|
|
default:
|
|
ASSERT_NOT_REACHED();
|
|
return ScrollAlignment::alignToEdgeIfNeeded;
|
|
}
|
|
}
|
|
|
|
inline ScrollAlignment toScrollAlignmentForBlockDirection(std::optional<ScrollLogicalPosition> position, WritingMode writingMode)
|
|
{
|
|
switch (position.value_or(ScrollLogicalPosition::Start)) {
|
|
case ScrollLogicalPosition::Start: {
|
|
switch (writingMode) {
|
|
case WritingMode::TopToBottom:
|
|
return ScrollAlignment::alignTopAlways;
|
|
case WritingMode::BottomToTop:
|
|
return ScrollAlignment::alignBottomAlways;
|
|
case WritingMode::LeftToRight:
|
|
return ScrollAlignment::alignLeftAlways;
|
|
case WritingMode::RightToLeft:
|
|
return ScrollAlignment::alignRightAlways;
|
|
default:
|
|
ASSERT_NOT_REACHED();
|
|
return ScrollAlignment::alignTopAlways;
|
|
}
|
|
}
|
|
case ScrollLogicalPosition::Center:
|
|
return ScrollAlignment::alignCenterAlways;
|
|
case ScrollLogicalPosition::End: {
|
|
switch (writingMode) {
|
|
case WritingMode::TopToBottom:
|
|
return ScrollAlignment::alignBottomAlways;
|
|
case WritingMode::BottomToTop:
|
|
return ScrollAlignment::alignTopAlways;
|
|
case WritingMode::LeftToRight:
|
|
return ScrollAlignment::alignRightAlways;
|
|
case WritingMode::RightToLeft:
|
|
return ScrollAlignment::alignLeftAlways;
|
|
default:
|
|
ASSERT_NOT_REACHED();
|
|
return ScrollAlignment::alignBottomAlways;
|
|
}
|
|
}
|
|
case ScrollLogicalPosition::Nearest:
|
|
return ScrollAlignment::alignToEdgeIfNeeded;
|
|
default:
|
|
ASSERT_NOT_REACHED();
|
|
return ScrollAlignment::alignToEdgeIfNeeded;
|
|
}
|
|
}
|
|
|
|
void Element::scrollIntoView(std::optional<Variant<bool, ScrollIntoViewOptions>>&& arg)
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (!renderer())
|
|
return;
|
|
|
|
bool insideFixed;
|
|
LayoutRect absoluteBounds = renderer()->absoluteAnchorRectWithScrollMargin(&insideFixed);
|
|
|
|
ScrollIntoViewOptions options;
|
|
if (arg) {
|
|
auto value = arg.value();
|
|
if (WTF::holds_alternative<ScrollIntoViewOptions>(value))
|
|
options = WTF::get<ScrollIntoViewOptions>(value);
|
|
else if (!WTF::get<bool>(value))
|
|
options.blockPosition = ScrollLogicalPosition::End;
|
|
}
|
|
|
|
auto writingMode = renderer()->style().writingMode();
|
|
ScrollAlignment alignX = toScrollAlignmentForInlineDirection(options.inlinePosition, writingMode, renderer()->style().isLeftToRightDirection());
|
|
ScrollAlignment alignY = toScrollAlignmentForBlockDirection(options.blockPosition, writingMode);
|
|
|
|
bool isHorizontal = renderer()->style().isHorizontalWritingMode();
|
|
ScrollRectToVisibleOptions visibleOptions {
|
|
SelectionRevealMode::Reveal,
|
|
isHorizontal ? alignX : alignY,
|
|
isHorizontal ? alignY : alignX,
|
|
ShouldAllowCrossOriginScrolling::No,
|
|
options.behavior.value_or(ScrollBehavior::Auto)
|
|
};
|
|
renderer()->scrollRectToVisible(absoluteBounds, insideFixed, visibleOptions);
|
|
}
|
|
|
|
void Element::scrollIntoView(bool alignToTop)
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (!renderer())
|
|
return;
|
|
|
|
bool insideFixed;
|
|
LayoutRect absoluteBounds = renderer()->absoluteAnchorRectWithScrollMargin(&insideFixed);
|
|
// Align to the top / bottom and to the closest edge.
|
|
if (alignToTop)
|
|
renderer()->scrollRectToVisible(absoluteBounds, insideFixed, { SelectionRevealMode::Reveal, ScrollAlignment::alignToEdgeIfNeeded, ScrollAlignment::alignTopAlways, ShouldAllowCrossOriginScrolling::No });
|
|
else
|
|
renderer()->scrollRectToVisible(absoluteBounds, insideFixed, { SelectionRevealMode::Reveal, ScrollAlignment::alignToEdgeIfNeeded, ScrollAlignment::alignBottomAlways, ShouldAllowCrossOriginScrolling::No });
|
|
}
|
|
|
|
void Element::scrollIntoViewIfNeeded(bool centerIfNeeded)
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (!renderer())
|
|
return;
|
|
|
|
bool insideFixed;
|
|
LayoutRect absoluteBounds = renderer()->absoluteAnchorRectWithScrollMargin(&insideFixed);
|
|
if (centerIfNeeded)
|
|
renderer()->scrollRectToVisible(absoluteBounds, insideFixed, { SelectionRevealMode::Reveal, ScrollAlignment::alignCenterIfNeeded, ScrollAlignment::alignCenterIfNeeded, ShouldAllowCrossOriginScrolling::No });
|
|
else
|
|
renderer()->scrollRectToVisible(absoluteBounds, insideFixed, { SelectionRevealMode::Reveal, ScrollAlignment::alignToEdgeIfNeeded, ScrollAlignment::alignToEdgeIfNeeded, ShouldAllowCrossOriginScrolling::No });
|
|
}
|
|
|
|
void Element::scrollIntoViewIfNotVisible(bool centerIfNotVisible)
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (!renderer())
|
|
return;
|
|
|
|
bool insideFixed;
|
|
LayoutRect absoluteBounds = renderer()->absoluteAnchorRectWithScrollMargin(&insideFixed);
|
|
if (centerIfNotVisible)
|
|
renderer()->scrollRectToVisible(absoluteBounds, insideFixed, { SelectionRevealMode::Reveal, ScrollAlignment::alignCenterIfNotVisible, ScrollAlignment::alignCenterIfNotVisible, ShouldAllowCrossOriginScrolling::No });
|
|
else
|
|
renderer()->scrollRectToVisible(absoluteBounds, insideFixed, { SelectionRevealMode::Reveal, ScrollAlignment::alignToEdgeIfNotVisible, ScrollAlignment::alignToEdgeIfNotVisible, ShouldAllowCrossOriginScrolling::No });
|
|
}
|
|
|
|
void Element::scrollBy(const ScrollToOptions& options)
|
|
{
|
|
ScrollToOptions scrollToOptions = normalizeNonFiniteCoordinatesOrFallBackTo(options, 0, 0);
|
|
scrollToOptions.left.value() += scrollLeft();
|
|
scrollToOptions.top.value() += scrollTop();
|
|
scrollTo(scrollToOptions, ScrollClamping::Clamped, ScrollSnapPointSelectionMethod::Directional);
|
|
}
|
|
|
|
void Element::scrollBy(double x, double y)
|
|
{
|
|
scrollBy(ScrollToOptions(x, y));
|
|
}
|
|
|
|
void Element::scrollTo(const ScrollToOptions& options, ScrollClamping clamping, ScrollSnapPointSelectionMethod snapPointSelectionMethod)
|
|
{
|
|
if (!document().settings().CSSOMViewScrollingAPIEnabled()) {
|
|
// If the element is the root element and document is in quirks mode, terminate these steps.
|
|
// Note that WebKit always uses quirks mode document scrolling behavior. See Document::scrollingElement().
|
|
if (this == document().documentElement())
|
|
return;
|
|
}
|
|
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (document().scrollingElement() == this) {
|
|
// If the element is the scrolling element and is not potentially scrollable,
|
|
// invoke scroll() on window with options as the only argument, and terminate these steps.
|
|
// FIXME: Scrolling an independently scrollable body is broken: webkit.org/b/161612.
|
|
auto window = makeRefPtr(document().domWindow());
|
|
if (!window)
|
|
return;
|
|
|
|
window->scrollTo(options, clamping, snapPointSelectionMethod);
|
|
return;
|
|
}
|
|
|
|
// If the element does not have any associated CSS layout box, the element has no associated scrolling box,
|
|
// or the element has no overflow, terminate these steps.
|
|
RenderBox* renderer = renderBox();
|
|
if (!renderer || !renderer->hasNonVisibleOverflow())
|
|
return;
|
|
|
|
auto scrollToOptions = normalizeNonFiniteCoordinatesOrFallBackTo(options,
|
|
adjustForAbsoluteZoom(renderer->scrollLeft(), *renderer),
|
|
adjustForAbsoluteZoom(renderer->scrollTop(), *renderer)
|
|
);
|
|
IntPoint scrollPosition(
|
|
clampToInteger(scrollToOptions.left.value() * renderer->style().effectiveZoom()),
|
|
clampToInteger(scrollToOptions.top.value() * renderer->style().effectiveZoom())
|
|
);
|
|
|
|
auto animated = useSmoothScrolling(scrollToOptions.behavior.value_or(ScrollBehavior::Auto), this) ? AnimatedScroll::Yes : AnimatedScroll::No;
|
|
auto scrollPositionChangeOptions = ScrollPositionChangeOptions::createProgrammaticWithOptions(clamping, animated, snapPointSelectionMethod);
|
|
renderer->setScrollPosition(scrollPosition, scrollPositionChangeOptions);
|
|
}
|
|
|
|
void Element::scrollTo(double x, double y)
|
|
{
|
|
scrollTo(ScrollToOptions(x, y));
|
|
}
|
|
|
|
void Element::scrollByUnits(int units, ScrollGranularity granularity)
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
auto* renderer = this->renderer();
|
|
if (!renderer)
|
|
return;
|
|
|
|
if (!renderer->hasNonVisibleOverflow())
|
|
return;
|
|
|
|
ScrollDirection direction = ScrollDown;
|
|
if (units < 0) {
|
|
direction = ScrollUp;
|
|
units = -units;
|
|
}
|
|
Element* stopElement = this;
|
|
downcast<RenderBox>(*renderer).scroll(direction, granularity, units, &stopElement);
|
|
}
|
|
|
|
void Element::scrollByLines(int lines)
|
|
{
|
|
scrollByUnits(lines, ScrollByLine);
|
|
}
|
|
|
|
void Element::scrollByPages(int pages)
|
|
{
|
|
scrollByUnits(pages, ScrollByPage);
|
|
}
|
|
|
|
static double localZoomForRenderer(const RenderElement& renderer)
|
|
{
|
|
// FIXME: This does the wrong thing if two opposing zooms are in effect and canceled each
|
|
// other out, but the alternative is that we'd have to crawl up the whole render tree every
|
|
// time (or store an additional bit in the RenderStyle to indicate that a zoom was specified).
|
|
double zoomFactor = 1;
|
|
if (renderer.style().effectiveZoom() != 1) {
|
|
// Need to find the nearest enclosing RenderElement that set up
|
|
// a differing zoom, and then we divide our result by it to eliminate the zoom.
|
|
const RenderElement* prev = &renderer;
|
|
for (RenderElement* curr = prev->parent(); curr; curr = curr->parent()) {
|
|
if (curr->style().effectiveZoom() != prev->style().effectiveZoom()) {
|
|
zoomFactor = prev->style().zoom();
|
|
break;
|
|
}
|
|
prev = curr;
|
|
}
|
|
if (prev->isRenderView())
|
|
zoomFactor = prev->style().zoom();
|
|
}
|
|
return zoomFactor;
|
|
}
|
|
|
|
static int adjustContentsScrollPositionOrSizeForZoom(int value, const Frame& frame)
|
|
{
|
|
double zoomFactor = frame.pageZoomFactor() * frame.frameScaleFactor();
|
|
if (zoomFactor == 1)
|
|
return value;
|
|
// FIXME (webkit.org/b/189397): Why can't we just ceil/floor?
|
|
// Needed because of truncation (rather than rounding) when scaling up.
|
|
if (zoomFactor > 1)
|
|
value++;
|
|
return static_cast<int>(value / zoomFactor);
|
|
}
|
|
|
|
enum LegacyCSSOMElementMetricsRoundingStrategy { Round, Floor };
|
|
|
|
static int convertToNonSubpixelValue(double value, const LegacyCSSOMElementMetricsRoundingStrategy roundStrategy = Round)
|
|
{
|
|
return roundStrategy == Round ? std::round(value) : std::floor(value);
|
|
}
|
|
|
|
static int adjustOffsetForZoomAndSubpixelLayout(RenderBoxModelObject& renderer, const LayoutUnit& offset)
|
|
{
|
|
auto offsetLeft = LayoutUnit { roundToInt(offset) };
|
|
double zoomFactor = localZoomForRenderer(renderer);
|
|
if (zoomFactor == 1)
|
|
return convertToNonSubpixelValue(offsetLeft, Floor);
|
|
return convertToNonSubpixelValue(offsetLeft / zoomFactor, Round);
|
|
}
|
|
|
|
static HashSet<TreeScope*> collectAncestorTreeScopeAsHashSet(Node& node)
|
|
{
|
|
HashSet<TreeScope*> ancestors;
|
|
for (auto* currentScope = &node.treeScope(); currentScope; currentScope = currentScope->parentTreeScope())
|
|
ancestors.add(currentScope);
|
|
return ancestors;
|
|
}
|
|
|
|
int Element::offsetLeftForBindings()
|
|
{
|
|
auto offset = offsetLeft();
|
|
|
|
auto parent = makeRefPtr(offsetParent());
|
|
if (!parent || !parent->isInShadowTree())
|
|
return offset;
|
|
|
|
ASSERT(&parent->document() == &document());
|
|
if (&parent->treeScope() == &treeScope())
|
|
return offset;
|
|
|
|
auto ancestorTreeScopes = collectAncestorTreeScopeAsHashSet(*this);
|
|
while (parent && !ancestorTreeScopes.contains(&parent->treeScope())) {
|
|
offset += parent->offsetLeft();
|
|
parent = parent->offsetParent();
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
int Element::offsetLeft()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
if (RenderBoxModelObject* renderer = renderBoxModelObject())
|
|
return adjustOffsetForZoomAndSubpixelLayout(*renderer, renderer->offsetLeft());
|
|
return 0;
|
|
}
|
|
|
|
int Element::offsetTopForBindings()
|
|
{
|
|
auto offset = offsetTop();
|
|
|
|
auto parent = makeRefPtr(offsetParent());
|
|
if (!parent || !parent->isInShadowTree())
|
|
return offset;
|
|
|
|
ASSERT(&parent->document() == &document());
|
|
if (&parent->treeScope() == &treeScope())
|
|
return offset;
|
|
|
|
auto ancestorTreeScopes = collectAncestorTreeScopeAsHashSet(*this);
|
|
while (parent && !ancestorTreeScopes.contains(&parent->treeScope())) {
|
|
offset += parent->offsetTop();
|
|
parent = parent->offsetParent();
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
int Element::offsetTop()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
if (RenderBoxModelObject* renderer = renderBoxModelObject())
|
|
return adjustOffsetForZoomAndSubpixelLayout(*renderer, renderer->offsetTop());
|
|
return 0;
|
|
}
|
|
|
|
int Element::offsetWidth()
|
|
{
|
|
document().updateLayoutIfDimensionsOutOfDate(*this, WidthDimensionsCheck);
|
|
if (RenderBoxModelObject* renderer = renderBoxModelObject()) {
|
|
auto offsetWidth = LayoutUnit { roundToInt(renderer->offsetWidth()) };
|
|
return convertToNonSubpixelValue(adjustLayoutUnitForAbsoluteZoom(offsetWidth, *renderer).toDouble());
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int Element::offsetHeight()
|
|
{
|
|
document().updateLayoutIfDimensionsOutOfDate(*this, HeightDimensionsCheck);
|
|
if (RenderBoxModelObject* renderer = renderBoxModelObject()) {
|
|
auto offsetHeight = LayoutUnit { roundToInt(renderer->offsetHeight()) };
|
|
return convertToNonSubpixelValue(adjustLayoutUnitForAbsoluteZoom(offsetHeight, *renderer).toDouble());
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
Element* Element::offsetParentForBindings()
|
|
{
|
|
Element* element = offsetParent();
|
|
if (!element || !element->isInShadowTree())
|
|
return element;
|
|
while (element && !isDescendantOrShadowDescendantOf(&element->rootNode()))
|
|
element = element->offsetParent();
|
|
return element;
|
|
}
|
|
|
|
Element* Element::offsetParent()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
auto renderer = this->renderer();
|
|
if (!renderer)
|
|
return nullptr;
|
|
auto offsetParent = renderer->offsetParent();
|
|
if (!offsetParent)
|
|
return nullptr;
|
|
return offsetParent->element();
|
|
}
|
|
|
|
int Element::clientLeft()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (auto* renderer = renderBox()) {
|
|
auto clientLeft = LayoutUnit { roundToInt(renderer->clientLeft()) };
|
|
return convertToNonSubpixelValue(adjustLayoutUnitForAbsoluteZoom(clientLeft, *renderer).toDouble());
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int Element::clientTop()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (auto* renderer = renderBox()) {
|
|
auto clientTop = LayoutUnit { roundToInt(renderer->clientTop()) };
|
|
return convertToNonSubpixelValue(adjustLayoutUnitForAbsoluteZoom(clientTop, *renderer).toDouble());
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int Element::clientWidth()
|
|
{
|
|
document().updateLayoutIfDimensionsOutOfDate(*this, WidthDimensionsCheck);
|
|
|
|
if (!document().hasLivingRenderTree())
|
|
return 0;
|
|
|
|
RenderView& renderView = *document().renderView();
|
|
|
|
// When in strict mode, clientWidth for the document element should return the width of the containing frame.
|
|
// When in quirks mode, clientWidth for the body element should return the width of the containing frame.
|
|
bool inQuirksMode = document().inQuirksMode();
|
|
if ((!inQuirksMode && document().documentElement() == this) || (inQuirksMode && isHTMLElement() && document().bodyOrFrameset() == this))
|
|
return adjustForAbsoluteZoom(renderView.frameView().layoutWidth(), renderView);
|
|
|
|
if (RenderBox* renderer = renderBox()) {
|
|
auto clientWidth = LayoutUnit { roundToInt(renderer->clientWidth()) };
|
|
// clientWidth/Height is the visual portion of the box content, not including
|
|
// borders or scroll bars, but includes padding. And per
|
|
// https://www.w3.org/TR/CSS2/tables.html#model,
|
|
// table wrapper box is a principal block box that contains the table box
|
|
// itself and any caption boxes, and table grid box is a block-level box that
|
|
// contains the table's internal table boxes. When table's border is specified
|
|
// in CSS, the border is added to table grid box, not table wrapper box.
|
|
// Currently, WebKit doesn't have table wrapper box, and we are supposed to
|
|
// retrieve clientWidth/Height from table wrapper box, not table grid box. So
|
|
// when we retrieve clientWidth/Height, it includes table's border size.
|
|
if (renderer->isTable())
|
|
clientWidth += renderer->borderLeft() + renderer->borderRight();
|
|
return convertToNonSubpixelValue(adjustLayoutUnitForAbsoluteZoom(clientWidth, *renderer).toDouble());
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int Element::clientHeight()
|
|
{
|
|
document().updateLayoutIfDimensionsOutOfDate(*this, HeightDimensionsCheck);
|
|
if (!document().hasLivingRenderTree())
|
|
return 0;
|
|
|
|
RenderView& renderView = *document().renderView();
|
|
|
|
// When in strict mode, clientHeight for the document element should return the height of the containing frame.
|
|
// When in quirks mode, clientHeight for the body element should return the height of the containing frame.
|
|
bool inQuirksMode = document().inQuirksMode();
|
|
if ((!inQuirksMode && document().documentElement() == this) || (inQuirksMode && isHTMLElement() && document().bodyOrFrameset() == this))
|
|
return adjustForAbsoluteZoom(renderView.frameView().layoutHeight(), renderView);
|
|
|
|
if (RenderBox* renderer = renderBox()) {
|
|
auto clientHeight = LayoutUnit { roundToInt(renderer->clientHeight()) };
|
|
// clientWidth/Height is the visual portion of the box content, not including
|
|
// borders or scroll bars, but includes padding. And per
|
|
// https://www.w3.org/TR/CSS2/tables.html#model,
|
|
// table wrapper box is a principal block box that contains the table box
|
|
// itself and any caption boxes, and table grid box is a block-level box that
|
|
// contains the table's internal table boxes. When table's border is specified
|
|
// in CSS, the border is added to table grid box, not table wrapper box.
|
|
// Currently, WebKit doesn't have table wrapper box, and we are supposed to
|
|
// retrieve clientWidth/Height from table wrapper box, not table grid box. So
|
|
// when we retrieve clientWidth/Height, it includes table's border size.
|
|
if (renderer->isTable())
|
|
clientHeight += renderer->borderTop() + renderer->borderBottom();
|
|
return convertToNonSubpixelValue(adjustLayoutUnitForAbsoluteZoom(clientHeight, *renderer).toDouble());
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
ALWAYS_INLINE Frame* Element::documentFrameWithNonNullView() const
|
|
{
|
|
auto* frame = document().frame();
|
|
return frame && frame->view() ? frame : nullptr;
|
|
}
|
|
|
|
int Element::scrollLeft()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (document().scrollingElement() == this) {
|
|
if (auto* frame = documentFrameWithNonNullView())
|
|
return adjustContentsScrollPositionOrSizeForZoom(frame->view()->contentsScrollPosition().x(), *frame);
|
|
return 0;
|
|
}
|
|
|
|
if (auto* renderer = renderBox())
|
|
return adjustForAbsoluteZoom(renderer->scrollLeft(), *renderer);
|
|
return 0;
|
|
}
|
|
|
|
int Element::scrollTop()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (document().scrollingElement() == this) {
|
|
if (auto* frame = documentFrameWithNonNullView())
|
|
return adjustContentsScrollPositionOrSizeForZoom(frame->view()->contentsScrollPosition().y(), *frame);
|
|
return 0;
|
|
}
|
|
|
|
if (RenderBox* renderer = renderBox())
|
|
return adjustForAbsoluteZoom(renderer->scrollTop(), *renderer);
|
|
return 0;
|
|
}
|
|
|
|
void Element::setScrollLeft(int newLeft)
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
auto options = ScrollPositionChangeOptions::createProgrammatic();
|
|
options.animated = useSmoothScrolling(ScrollBehavior::Auto, this) ? AnimatedScroll::Yes : AnimatedScroll::No;
|
|
|
|
if (document().scrollingElement() == this) {
|
|
if (auto* frame = documentFrameWithNonNullView()) {
|
|
IntPoint position(static_cast<int>(newLeft * frame->pageZoomFactor() * frame->frameScaleFactor()), frame->view()->scrollY());
|
|
frame->view()->setScrollPosition(position, options);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (auto* renderer = renderBox()) {
|
|
int clampedLeft = clampToInteger(newLeft * renderer->style().effectiveZoom());
|
|
renderer->setScrollLeft(clampedLeft, options);
|
|
if (auto* scrollableArea = renderer->layer() ? renderer->layer()->scrollableArea() : nullptr)
|
|
scrollableArea->setScrollShouldClearLatchedState(true);
|
|
}
|
|
}
|
|
|
|
void Element::setScrollTop(int newTop)
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
auto options = ScrollPositionChangeOptions::createProgrammatic();
|
|
options.animated = useSmoothScrolling(ScrollBehavior::Auto, this) ? AnimatedScroll::Yes : AnimatedScroll::No;
|
|
|
|
if (document().scrollingElement() == this) {
|
|
if (auto* frame = documentFrameWithNonNullView()) {
|
|
IntPoint position(frame->view()->scrollX(), static_cast<int>(newTop * frame->pageZoomFactor() * frame->frameScaleFactor()));
|
|
frame->view()->setScrollPosition(position, options);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (auto* renderer = renderBox()) {
|
|
int clampedTop = clampToInteger(newTop * renderer->style().effectiveZoom());
|
|
renderer->setScrollTop(clampedTop, options);
|
|
if (auto* scrollableArea = renderer->layer() ? renderer->layer()->scrollableArea() : nullptr)
|
|
scrollableArea->setScrollShouldClearLatchedState(true);
|
|
}
|
|
}
|
|
|
|
int Element::scrollWidth()
|
|
{
|
|
document().updateLayoutIfDimensionsOutOfDate(*this, WidthDimensionsCheck);
|
|
|
|
if (document().scrollingElement() == this) {
|
|
// FIXME (webkit.org/b/182289): updateLayoutIfDimensionsOutOfDate seems to ignore zoom level change.
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
if (auto* frame = documentFrameWithNonNullView())
|
|
return adjustContentsScrollPositionOrSizeForZoom(frame->view()->contentsWidth(), *frame);
|
|
return 0;
|
|
}
|
|
|
|
if (auto* renderer = renderBox())
|
|
return adjustForAbsoluteZoom(renderer->scrollWidth(), *renderer);
|
|
return 0;
|
|
}
|
|
|
|
int Element::scrollHeight()
|
|
{
|
|
document().updateLayoutIfDimensionsOutOfDate(*this, HeightDimensionsCheck);
|
|
|
|
if (document().scrollingElement() == this) {
|
|
// FIXME (webkit.org/b/182289): updateLayoutIfDimensionsOutOfDate seems to ignore zoom level change.
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
if (auto* frame = documentFrameWithNonNullView())
|
|
return adjustContentsScrollPositionOrSizeForZoom(frame->view()->contentsHeight(), *frame);
|
|
return 0;
|
|
}
|
|
|
|
if (auto* renderer = renderBox())
|
|
return adjustForAbsoluteZoom(renderer->scrollHeight(), *renderer);
|
|
return 0;
|
|
}
|
|
|
|
IntRect Element::boundsInRootViewSpace()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
FrameView* view = document().view();
|
|
if (!view)
|
|
return IntRect();
|
|
|
|
Vector<FloatQuad> quads;
|
|
|
|
if (isSVGElement() && renderer()) {
|
|
// Get the bounding rectangle from the SVG model.
|
|
SVGElement& svgElement = downcast<SVGElement>(*this);
|
|
if (auto localRect = svgElement.getBoundingBox())
|
|
quads.append(renderer()->localToAbsoluteQuad(*localRect));
|
|
} else {
|
|
// Get the bounding rectangle from the box model.
|
|
if (renderBoxModelObject())
|
|
renderBoxModelObject()->absoluteQuads(quads);
|
|
}
|
|
|
|
return view->contentsToRootView(enclosingIntRect(unitedBoundingBoxes(quads)));
|
|
}
|
|
|
|
IntRect Element::boundingBoxInRootViewCoordinates() const
|
|
{
|
|
if (RenderObject* renderer = this->renderer())
|
|
return document().view()->contentsToRootView(renderer->absoluteBoundingBoxRect());
|
|
return IntRect();
|
|
}
|
|
|
|
static bool layoutOverflowRectContainsAllDescendants(const RenderBox& renderBox)
|
|
{
|
|
if (renderBox.isRenderView())
|
|
return true;
|
|
|
|
if (!renderBox.element())
|
|
return false;
|
|
|
|
// If there are any position:fixed inside of us, game over.
|
|
if (auto* viewPositionedObjects = renderBox.view().positionedObjects()) {
|
|
for (auto* positionedBox : *viewPositionedObjects) {
|
|
if (positionedBox == &renderBox)
|
|
continue;
|
|
if (positionedBox->isFixedPositioned() && renderBox.element()->contains(positionedBox->element()))
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (renderBox.canContainAbsolutelyPositionedObjects()) {
|
|
// Our layout overflow will include all descendant positioned elements.
|
|
return true;
|
|
}
|
|
|
|
// This renderer may have positioned descendants whose containing block is some ancestor.
|
|
if (auto* containingBlock = renderBox.containingBlockForAbsolutePosition()) {
|
|
if (auto* positionedObjects = containingBlock->positionedObjects()) {
|
|
for (auto* positionedBox : *positionedObjects) {
|
|
if (positionedBox == &renderBox)
|
|
continue;
|
|
if (renderBox.element()->contains(positionedBox->element()))
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
LayoutRect Element::absoluteEventBounds(bool& boundsIncludeAllDescendantElements, bool& includesFixedPositionElements)
|
|
{
|
|
boundsIncludeAllDescendantElements = false;
|
|
includesFixedPositionElements = false;
|
|
|
|
if (!renderer())
|
|
return LayoutRect();
|
|
|
|
LayoutRect result;
|
|
if (isSVGElement()) {
|
|
// Get the bounding rectangle from the SVG model.
|
|
SVGElement& svgElement = downcast<SVGElement>(*this);
|
|
if (auto localRect = svgElement.getBoundingBox())
|
|
result = LayoutRect(renderer()->localToAbsoluteQuad(*localRect, UseTransforms, &includesFixedPositionElements).boundingBox());
|
|
} else {
|
|
auto* renderer = this->renderer();
|
|
if (is<RenderBox>(renderer)) {
|
|
auto& box = downcast<RenderBox>(*renderer);
|
|
|
|
bool computedBounds = false;
|
|
|
|
if (RenderFragmentedFlow* fragmentedFlow = box.enclosingFragmentedFlow()) {
|
|
bool wasFixed = false;
|
|
Vector<FloatQuad> quads;
|
|
if (fragmentedFlow->absoluteQuadsForBox(quads, &wasFixed, &box)) {
|
|
result = LayoutRect(unitedBoundingBoxes(quads));
|
|
computedBounds = true;
|
|
} else {
|
|
// Probably columns. Just return the bounds of the multicol block for now.
|
|
// FIXME: this doesn't handle nested columns.
|
|
RenderElement* multicolContainer = fragmentedFlow->parent();
|
|
if (multicolContainer && is<RenderBox>(multicolContainer)) {
|
|
auto overflowRect = downcast<RenderBox>(*multicolContainer).layoutOverflowRect();
|
|
result = LayoutRect(multicolContainer->localToAbsoluteQuad(FloatRect(overflowRect), UseTransforms, &includesFixedPositionElements).boundingBox());
|
|
computedBounds = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!computedBounds) {
|
|
LayoutRect overflowRect = box.layoutOverflowRect();
|
|
result = LayoutRect(box.localToAbsoluteQuad(FloatRect(overflowRect), UseTransforms, &includesFixedPositionElements).boundingBox());
|
|
boundsIncludeAllDescendantElements = layoutOverflowRectContainsAllDescendants(box);
|
|
}
|
|
} else
|
|
result = LayoutRect(renderer->absoluteBoundingBoxRect(true /* useTransforms */, &includesFixedPositionElements));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
LayoutRect Element::absoluteEventBoundsOfElementAndDescendants(bool& includesFixedPositionElements)
|
|
{
|
|
bool boundsIncludeDescendants;
|
|
LayoutRect result = absoluteEventBounds(boundsIncludeDescendants, includesFixedPositionElements);
|
|
if (boundsIncludeDescendants)
|
|
return result;
|
|
|
|
for (auto& child : childrenOfType<Element>(*this)) {
|
|
bool includesFixedPosition = false;
|
|
LayoutRect childBounds = child.absoluteEventBoundsOfElementAndDescendants(includesFixedPosition);
|
|
includesFixedPositionElements |= includesFixedPosition;
|
|
result.unite(childBounds);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
LayoutRect Element::absoluteEventHandlerBounds(bool& includesFixedPositionElements)
|
|
{
|
|
// This is not web-exposed, so don't call the FOUC-inducing updateLayoutIgnorePendingStylesheets().
|
|
FrameView* frameView = document().view();
|
|
if (!frameView)
|
|
return LayoutRect();
|
|
|
|
return absoluteEventBoundsOfElementAndDescendants(includesFixedPositionElements);
|
|
}
|
|
|
|
static std::optional<std::pair<RenderObject*, LayoutRect>> listBoxElementBoundingBox(Element& element)
|
|
{
|
|
HTMLSelectElement* selectElement;
|
|
bool isGroup;
|
|
if (is<HTMLOptionElement>(element)) {
|
|
selectElement = downcast<HTMLOptionElement>(element).ownerSelectElement();
|
|
isGroup = false;
|
|
} else if (is<HTMLOptGroupElement>(element)) {
|
|
selectElement = downcast<HTMLOptGroupElement>(element).ownerSelectElement();
|
|
isGroup = true;
|
|
} else
|
|
return std::nullopt;
|
|
|
|
if (!selectElement || !selectElement->renderer() || !is<RenderListBox>(selectElement->renderer()))
|
|
return std::nullopt;
|
|
|
|
auto& renderer = downcast<RenderListBox>(*selectElement->renderer());
|
|
std::optional<LayoutRect> boundingBox;
|
|
int optionIndex = 0;
|
|
for (auto* item : selectElement->listItems()) {
|
|
if (item == &element) {
|
|
LayoutPoint additionOffset;
|
|
boundingBox = renderer.itemBoundingBoxRect(additionOffset, optionIndex);
|
|
if (!isGroup)
|
|
break;
|
|
} else if (isGroup && boundingBox) {
|
|
if (item->parentNode() != &element)
|
|
break;
|
|
LayoutPoint additionOffset;
|
|
boundingBox->setHeight(boundingBox->height() + renderer.itemBoundingBoxRect(additionOffset, optionIndex).height());
|
|
}
|
|
++optionIndex;
|
|
}
|
|
|
|
if (!boundingBox)
|
|
return std::nullopt;
|
|
|
|
return std::pair<RenderObject*, LayoutRect> { &renderer, boundingBox.value() };
|
|
}
|
|
|
|
Ref<DOMRectList> Element::getClientRects()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
RenderObject* renderer = this->renderer();
|
|
Vector<FloatQuad> quads;
|
|
|
|
if (auto pair = listBoxElementBoundingBox(*this)) {
|
|
renderer = pair.value().first;
|
|
quads.append(renderer->localToAbsoluteQuad(FloatQuad { pair.value().second }));
|
|
} else if (auto* renderBoxModelObject = this->renderBoxModelObject())
|
|
renderBoxModelObject->absoluteQuads(quads);
|
|
|
|
// FIXME: Handle SVG elements.
|
|
// FIXME: Handle table/inline-table with a caption.
|
|
|
|
if (quads.isEmpty())
|
|
return DOMRectList::create();
|
|
|
|
document().convertAbsoluteToClientQuads(quads, renderer->style());
|
|
return DOMRectList::create(quads);
|
|
}
|
|
|
|
std::optional<std::pair<RenderObject*, FloatRect>> Element::boundingAbsoluteRectWithoutLayout()
|
|
{
|
|
RenderObject* renderer = this->renderer();
|
|
Vector<FloatQuad> quads;
|
|
if (isSVGElement() && renderer && !renderer->isSVGRoot()) {
|
|
// Get the bounding rectangle from the SVG model.
|
|
SVGElement& svgElement = downcast<SVGElement>(*this);
|
|
if (auto localRect = svgElement.getBoundingBox())
|
|
quads.append(renderer->localToAbsoluteQuad(*localRect));
|
|
} else if (auto pair = listBoxElementBoundingBox(*this)) {
|
|
renderer = pair.value().first;
|
|
quads.append(renderer->localToAbsoluteQuad(FloatQuad { pair.value().second }));
|
|
} else if (auto* renderBoxModelObject = this->renderBoxModelObject())
|
|
renderBoxModelObject->absoluteQuads(quads);
|
|
|
|
if (quads.isEmpty())
|
|
return std::nullopt;
|
|
|
|
return std::make_pair(renderer, unitedBoundingBoxes(quads));
|
|
}
|
|
|
|
FloatRect Element::boundingClientRect()
|
|
{
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
auto pair = boundingAbsoluteRectWithoutLayout();
|
|
if (!pair)
|
|
return { };
|
|
RenderObject* renderer = pair->first;
|
|
FloatRect result = pair->second;
|
|
document().convertAbsoluteToClientRect(result, renderer->style());
|
|
return result;
|
|
}
|
|
|
|
Ref<DOMRect> Element::getBoundingClientRect()
|
|
{
|
|
return DOMRect::create(boundingClientRect());
|
|
}
|
|
|
|
IntRect Element::screenRect() const
|
|
{
|
|
if (RenderObject* renderer = this->renderer())
|
|
return document().view()->contentsToScreen(renderer->absoluteBoundingBoxRect());
|
|
return IntRect();
|
|
}
|
|
|
|
const AtomString& Element::getAttribute(const AtomString& qualifiedName) const
|
|
{
|
|
if (!elementData())
|
|
return nullAtom();
|
|
synchronizeAttribute(qualifiedName);
|
|
if (const Attribute* attribute = elementData()->findAttributeByName(qualifiedName, shouldIgnoreAttributeCase(*this)))
|
|
return attribute->value();
|
|
return nullAtom();
|
|
}
|
|
|
|
const AtomString& Element::getAttributeNS(const AtomString& namespaceURI, const AtomString& localName) const
|
|
{
|
|
return getAttribute(QualifiedName(nullAtom(), localName, namespaceURI));
|
|
}
|
|
|
|
// https://dom.spec.whatwg.org/#dom-element-toggleattribute
|
|
ExceptionOr<bool> Element::toggleAttribute(const AtomString& qualifiedName, std::optional<bool> force)
|
|
{
|
|
if (!Document::isValidName(qualifiedName))
|
|
return Exception { InvalidCharacterError };
|
|
|
|
synchronizeAttribute(qualifiedName);
|
|
|
|
auto caseAdjustedQualifiedName = shouldIgnoreAttributeCase(*this) ? qualifiedName.convertToASCIILowercase() : qualifiedName;
|
|
unsigned index = elementData() ? elementData()->findAttributeIndexByName(caseAdjustedQualifiedName, false) : ElementData::attributeNotFound;
|
|
if (index == ElementData::attributeNotFound) {
|
|
if (!force || *force) {
|
|
setAttributeInternal(index, QualifiedName { nullAtom(), caseAdjustedQualifiedName, nullAtom() }, emptyString(), NotInSynchronizationOfLazyAttribute);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (!force || !*force) {
|
|
removeAttributeInternal(index, NotInSynchronizationOfLazyAttribute);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
ExceptionOr<void> Element::setAttribute(const AtomString& qualifiedName, const AtomString& value)
|
|
{
|
|
if (!Document::isValidName(qualifiedName))
|
|
return Exception { InvalidCharacterError };
|
|
|
|
synchronizeAttribute(qualifiedName);
|
|
auto caseAdjustedQualifiedName = shouldIgnoreAttributeCase(*this) ? qualifiedName.convertToASCIILowercase() : qualifiedName;
|
|
unsigned index = elementData() ? elementData()->findAttributeIndexByName(caseAdjustedQualifiedName, false) : ElementData::attributeNotFound;
|
|
auto name = index != ElementData::attributeNotFound ? attributeAt(index).name() : QualifiedName { nullAtom(), caseAdjustedQualifiedName, nullAtom() };
|
|
setAttributeInternal(index, name, value, NotInSynchronizationOfLazyAttribute);
|
|
|
|
return { };
|
|
}
|
|
|
|
void Element::setAttribute(const QualifiedName& name, const AtomString& value)
|
|
{
|
|
synchronizeAttribute(name);
|
|
unsigned index = elementData() ? elementData()->findAttributeIndexByName(name) : ElementData::attributeNotFound;
|
|
setAttributeInternal(index, name, value, NotInSynchronizationOfLazyAttribute);
|
|
}
|
|
|
|
void Element::setAttributeWithoutSynchronization(const QualifiedName& name, const AtomString& value)
|
|
{
|
|
unsigned index = elementData() ? elementData()->findAttributeIndexByName(name) : ElementData::attributeNotFound;
|
|
setAttributeInternal(index, name, value, NotInSynchronizationOfLazyAttribute);
|
|
}
|
|
|
|
void Element::setSynchronizedLazyAttribute(const QualifiedName& name, const AtomString& value)
|
|
{
|
|
unsigned index = elementData() ? elementData()->findAttributeIndexByName(name) : ElementData::attributeNotFound;
|
|
setAttributeInternal(index, name, value, InSynchronizationOfLazyAttribute);
|
|
}
|
|
|
|
inline void Element::setAttributeInternal(unsigned index, const QualifiedName& name, const AtomString& newValue, SynchronizationOfLazyAttribute inSynchronizationOfLazyAttribute)
|
|
{
|
|
ASSERT_WITH_MESSAGE(refCount() || parentNode(), "Attribute must not be set on an element before adoptRef");
|
|
|
|
if (newValue.isNull()) {
|
|
if (index != ElementData::attributeNotFound)
|
|
removeAttributeInternal(index, inSynchronizationOfLazyAttribute);
|
|
return;
|
|
}
|
|
|
|
if (index == ElementData::attributeNotFound) {
|
|
addAttributeInternal(name, newValue, inSynchronizationOfLazyAttribute);
|
|
return;
|
|
}
|
|
|
|
if (inSynchronizationOfLazyAttribute) {
|
|
ensureUniqueElementData().attributeAt(index).setValue(newValue);
|
|
return;
|
|
}
|
|
|
|
const Attribute& attribute = attributeAt(index);
|
|
QualifiedName attributeName = attribute.name();
|
|
AtomString oldValue = attribute.value();
|
|
|
|
willModifyAttribute(attributeName, oldValue, newValue);
|
|
|
|
if (newValue != oldValue) {
|
|
Style::AttributeChangeInvalidation styleInvalidation(*this, name, oldValue, newValue);
|
|
ensureUniqueElementData().attributeAt(index).setValue(newValue);
|
|
}
|
|
|
|
didModifyAttribute(attributeName, oldValue, newValue);
|
|
}
|
|
|
|
static inline AtomString makeIdForStyleResolution(const AtomString& value, bool inQuirksMode)
|
|
{
|
|
if (inQuirksMode)
|
|
return value.convertToASCIILowercase();
|
|
return value;
|
|
}
|
|
|
|
void Element::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason)
|
|
{
|
|
bool valueIsSameAsBefore = oldValue == newValue;
|
|
|
|
if (!valueIsSameAsBefore) {
|
|
if (name == HTMLNames::accesskeyAttr)
|
|
document().invalidateAccessKeyCache();
|
|
else if (name == HTMLNames::classAttr)
|
|
classAttributeChanged(newValue);
|
|
else if (name == HTMLNames::idAttr) {
|
|
AtomString oldId = elementData()->idForStyleResolution();
|
|
AtomString newId = makeIdForStyleResolution(newValue, document().inQuirksMode());
|
|
if (newId != oldId) {
|
|
Style::IdChangeInvalidation styleInvalidation(*this, oldId, newId);
|
|
elementData()->setIdForStyleResolution(newId);
|
|
}
|
|
|
|
if (!oldValue.isEmpty())
|
|
treeScope().idTargetObserverRegistry().notifyObservers(*oldValue.impl());
|
|
if (!newValue.isEmpty())
|
|
treeScope().idTargetObserverRegistry().notifyObservers(*newValue.impl());
|
|
} else if (name == HTMLNames::nameAttr)
|
|
elementData()->setHasNameAttribute(!newValue.isNull());
|
|
else if (name == HTMLNames::pseudoAttr) {
|
|
if (needsStyleInvalidation() && isInShadowTree())
|
|
invalidateStyleForSubtree();
|
|
} else if (name == HTMLNames::slotAttr) {
|
|
if (auto* parent = parentElement()) {
|
|
if (auto* shadowRoot = parent->shadowRoot())
|
|
shadowRoot->hostChildElementDidChangeSlotAttribute(*this, oldValue, newValue);
|
|
}
|
|
} else if (name == HTMLNames::partAttr)
|
|
partAttributeChanged(newValue);
|
|
else if (name == HTMLNames::exportpartsAttr) {
|
|
if (auto* shadowRoot = this->shadowRoot()) {
|
|
shadowRoot->invalidatePartMappings();
|
|
Style::Invalidator::invalidateShadowParts(*shadowRoot);
|
|
}
|
|
}
|
|
}
|
|
|
|
parseAttribute(name, newValue);
|
|
|
|
document().incDOMTreeVersion();
|
|
|
|
if (UNLIKELY(isDefinedCustomElement()))
|
|
CustomElementReactionQueue::enqueueAttributeChangedCallbackIfNeeded(*this, name, oldValue, newValue);
|
|
|
|
if (valueIsSameAsBefore)
|
|
return;
|
|
|
|
invalidateNodeListAndCollectionCachesInAncestorsForAttribute(name);
|
|
|
|
if (AXObjectCache* cache = document().existingAXObjectCache())
|
|
cache->deferAttributeChangeIfNeeded(name, this);
|
|
}
|
|
|
|
template <typename CharacterType>
|
|
static inline bool isNonEmptyTokenList(const CharacterType* characters, unsigned length)
|
|
{
|
|
ASSERT(length > 0);
|
|
|
|
unsigned i = 0;
|
|
do {
|
|
if (isNotHTMLSpace(characters[i]))
|
|
break;
|
|
++i;
|
|
} while (i < length);
|
|
|
|
return i < length;
|
|
}
|
|
|
|
static inline bool isNonEmptyTokenList(const AtomString& stringValue)
|
|
{
|
|
unsigned length = stringValue.length();
|
|
|
|
if (!length)
|
|
return false;
|
|
|
|
if (stringValue.is8Bit())
|
|
return isNonEmptyTokenList(stringValue.characters8(), length);
|
|
return isNonEmptyTokenList(stringValue.characters16(), length);
|
|
}
|
|
|
|
void Element::classAttributeChanged(const AtomString& newClassString)
|
|
{
|
|
// Note: We'll need ElementData, but it doesn't have to be UniqueElementData.
|
|
if (!elementData())
|
|
ensureUniqueElementData();
|
|
|
|
bool shouldFoldCase = document().inQuirksMode();
|
|
bool newStringHasClasses = isNonEmptyTokenList(newClassString);
|
|
|
|
auto oldClassNames = elementData()->classNames();
|
|
auto newClassNames = newStringHasClasses ? SpaceSplitString(newClassString, shouldFoldCase) : SpaceSplitString();
|
|
{
|
|
Style::ClassChangeInvalidation styleInvalidation(*this, oldClassNames, newClassNames);
|
|
elementData()->setClassNames(newClassNames);
|
|
}
|
|
|
|
if (hasRareData()) {
|
|
if (auto* classList = elementRareData()->classList())
|
|
classList->associatedAttributeValueChanged(newClassString);
|
|
}
|
|
}
|
|
|
|
void Element::partAttributeChanged(const AtomString& newValue)
|
|
{
|
|
bool hasParts = isNonEmptyTokenList(newValue);
|
|
if (hasParts || !partNames().isEmpty()) {
|
|
auto newParts = hasParts ? SpaceSplitString(newValue, false) : SpaceSplitString();
|
|
ensureElementRareData().setPartNames(WTFMove(newParts));
|
|
}
|
|
|
|
if (hasRareData()) {
|
|
if (auto* partList = elementRareData()->partList())
|
|
partList->associatedAttributeValueChanged(newValue);
|
|
}
|
|
|
|
if (needsStyleInvalidation() && isInShadowTree())
|
|
invalidateStyleInternal();
|
|
}
|
|
|
|
URL Element::absoluteLinkURL() const
|
|
{
|
|
if (!isLink())
|
|
return URL();
|
|
|
|
AtomString linkAttribute;
|
|
if (hasTagName(SVGNames::aTag))
|
|
linkAttribute = getAttribute(SVGNames::hrefAttr, XLinkNames::hrefAttr);
|
|
else
|
|
linkAttribute = getAttribute(HTMLNames::hrefAttr);
|
|
|
|
if (linkAttribute.isEmpty())
|
|
return URL();
|
|
|
|
return document().completeURL(stripLeadingAndTrailingHTMLSpaces(linkAttribute));
|
|
}
|
|
|
|
#if ENABLE(TOUCH_EVENTS)
|
|
|
|
bool Element::allowsDoubleTapGesture() const
|
|
{
|
|
if (renderStyle() && renderStyle()->touchActions() != TouchAction::Auto)
|
|
return false;
|
|
|
|
Element* parent = parentElement();
|
|
return !parent || parent->allowsDoubleTapGesture();
|
|
}
|
|
|
|
#endif
|
|
|
|
Style::Resolver& Element::styleResolver()
|
|
{
|
|
if (auto* shadowRoot = containingShadowRoot())
|
|
return shadowRoot->styleScope().resolver();
|
|
|
|
return document().styleScope().resolver();
|
|
}
|
|
|
|
Style::ElementStyle Element::resolveStyle(const RenderStyle* parentStyle)
|
|
{
|
|
return styleResolver().styleForElement(*this, parentStyle);
|
|
}
|
|
|
|
static void invalidateForSiblingCombinators(Element* sibling)
|
|
{
|
|
for (; sibling; sibling = sibling->nextElementSibling()) {
|
|
if (sibling->styleIsAffectedByPreviousSibling())
|
|
sibling->invalidateStyleInternal();
|
|
if (sibling->descendantsAffectedByPreviousSibling()) {
|
|
for (auto* siblingChild = sibling->firstElementChild(); siblingChild; siblingChild = siblingChild->nextElementSibling())
|
|
siblingChild->invalidateStyleForSubtreeInternal();
|
|
}
|
|
if (!sibling->affectsNextSiblingElementStyle())
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void invalidateSiblingsIfNeeded(Element& element)
|
|
{
|
|
if (!element.affectsNextSiblingElementStyle())
|
|
return;
|
|
auto* parent = element.parentElement();
|
|
if (parent && parent->styleValidity() >= Style::Validity::SubtreeInvalid)
|
|
return;
|
|
|
|
invalidateForSiblingCombinators(element.nextElementSibling());
|
|
}
|
|
|
|
void Element::invalidateStyle()
|
|
{
|
|
Node::invalidateStyle(Style::Validity::ElementInvalid);
|
|
invalidateSiblingsIfNeeded(*this);
|
|
}
|
|
|
|
void Element::invalidateStyleAndLayerComposition()
|
|
{
|
|
Node::invalidateStyle(Style::Validity::ElementInvalid, Style::InvalidationMode::RecompositeLayer);
|
|
invalidateSiblingsIfNeeded(*this);
|
|
}
|
|
|
|
void Element::invalidateStyleForSubtree()
|
|
{
|
|
Node::invalidateStyle(Style::Validity::SubtreeInvalid);
|
|
invalidateSiblingsIfNeeded(*this);
|
|
}
|
|
|
|
void Element::invalidateStyleAndRenderersForSubtree()
|
|
{
|
|
Node::invalidateStyle(Style::Validity::SubtreeAndRenderersInvalid);
|
|
invalidateSiblingsIfNeeded(*this);
|
|
}
|
|
|
|
void Element::invalidateStyleInternal()
|
|
{
|
|
Node::invalidateStyle(Style::Validity::ElementInvalid);
|
|
}
|
|
|
|
void Element::invalidateStyleForSubtreeInternal()
|
|
{
|
|
Node::invalidateStyle(Style::Validity::SubtreeInvalid);
|
|
}
|
|
|
|
void Element::invalidateEventListenerRegions()
|
|
{
|
|
// Event listener region is updated via style update.
|
|
invalidateStyleInternal();
|
|
}
|
|
|
|
bool Element::hasDisplayContents() const
|
|
{
|
|
if (!hasRareData())
|
|
return false;
|
|
|
|
const RenderStyle* style = elementRareData()->computedStyle();
|
|
return style && style->display() == DisplayType::Contents;
|
|
}
|
|
|
|
void Element::storeDisplayContentsStyle(std::unique_ptr<RenderStyle> style)
|
|
{
|
|
ASSERT(style && style->display() == DisplayType::Contents);
|
|
ASSERT(!renderer() || isPseudoElement());
|
|
ensureElementRareData().setComputedStyle(WTFMove(style));
|
|
clearNodeFlag(NodeFlag::IsComputedStyleInvalidFlag);
|
|
}
|
|
|
|
// Returns true is the given attribute is an event handler.
|
|
// We consider an event handler any attribute that begins with "on".
|
|
// It is a simple solution that has the advantage of not requiring any
|
|
// code or configuration change if a new event handler is defined.
|
|
|
|
bool Element::isEventHandlerAttribute(const Attribute& attribute) const
|
|
{
|
|
return attribute.name().namespaceURI().isNull() && attribute.name().localName().startsWith("on");
|
|
}
|
|
|
|
bool Element::isJavaScriptURLAttribute(const Attribute& attribute) const
|
|
{
|
|
return isURLAttribute(attribute) && WTF::protocolIsJavaScript(stripLeadingAndTrailingHTMLSpaces(attribute.value()));
|
|
}
|
|
|
|
void Element::stripScriptingAttributes(Vector<Attribute>& attributeVector) const
|
|
{
|
|
attributeVector.removeAllMatching([this](auto& attribute) -> bool {
|
|
return this->isEventHandlerAttribute(attribute)
|
|
|| this->isJavaScriptURLAttribute(attribute)
|
|
|| this->isHTMLContentAttribute(attribute);
|
|
});
|
|
}
|
|
|
|
void Element::parserSetAttributes(const Vector<Attribute>& attributeVector)
|
|
{
|
|
ASSERT(!isConnected());
|
|
ASSERT(!parentNode());
|
|
ASSERT(!m_elementData);
|
|
|
|
if (!attributeVector.isEmpty()) {
|
|
if (document().sharedObjectPool())
|
|
m_elementData = document().sharedObjectPool()->cachedShareableElementDataWithAttributes(attributeVector);
|
|
else
|
|
m_elementData = ShareableElementData::createWithAttributes(attributeVector);
|
|
|
|
}
|
|
|
|
parserDidSetAttributes();
|
|
|
|
// Use attributeVector instead of m_elementData because attributeChanged might modify m_elementData.
|
|
for (const auto& attribute : attributeVector)
|
|
attributeChanged(attribute.name(), nullAtom(), attribute.value(), ModifiedDirectly);
|
|
}
|
|
|
|
void Element::parserDidSetAttributes()
|
|
{
|
|
}
|
|
|
|
void Element::didMoveToNewDocument(Document& oldDocument, Document& newDocument)
|
|
{
|
|
ASSERT_WITH_SECURITY_IMPLICATION(&document() == &newDocument);
|
|
|
|
if (oldDocument.inQuirksMode() != document().inQuirksMode()) {
|
|
// ElementData::m_classNames or ElementData::m_idForStyleResolution need to be updated with the right case.
|
|
if (hasID())
|
|
attributeChanged(idAttr, nullAtom(), getIdAttribute());
|
|
if (hasClass())
|
|
attributeChanged(classAttr, nullAtom(), getAttribute(classAttr));
|
|
}
|
|
|
|
if (UNLIKELY(isDefinedCustomElement()))
|
|
CustomElementReactionQueue::enqueueAdoptedCallbackIfNeeded(*this, oldDocument, newDocument);
|
|
|
|
#if ENABLE(INTERSECTION_OBSERVER)
|
|
if (auto* observerData = intersectionObserverDataIfExists()) {
|
|
for (const auto& observer : observerData->observers) {
|
|
if (observer->hasObservationTargets()) {
|
|
oldDocument.removeIntersectionObserver(*observer);
|
|
newDocument.addIntersectionObserver(*observer);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
bool Element::hasAttributes() const
|
|
{
|
|
synchronizeAllAttributes();
|
|
return elementData() && elementData()->length();
|
|
}
|
|
|
|
bool Element::hasEquivalentAttributes(const Element& other) const
|
|
{
|
|
synchronizeAllAttributes();
|
|
other.synchronizeAllAttributes();
|
|
if (elementData() == other.elementData())
|
|
return true;
|
|
if (elementData())
|
|
return elementData()->isEquivalent(other.elementData());
|
|
if (other.elementData())
|
|
return other.elementData()->isEquivalent(elementData());
|
|
return true;
|
|
}
|
|
|
|
String Element::nodeName() const
|
|
{
|
|
return m_tagName.toString();
|
|
}
|
|
|
|
String Element::nodeNamePreservingCase() const
|
|
{
|
|
return m_tagName.toString();
|
|
}
|
|
|
|
ExceptionOr<void> Element::setPrefix(const AtomString& prefix)
|
|
{
|
|
auto result = checkSetPrefix(prefix);
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
|
|
m_tagName.setPrefix(prefix.isEmpty() ? nullAtom() : prefix);
|
|
return { };
|
|
}
|
|
|
|
const AtomString& Element::imageSourceURL() const
|
|
{
|
|
return attributeWithoutSynchronization(srcAttr);
|
|
}
|
|
|
|
bool Element::rendererIsNeeded(const RenderStyle& style)
|
|
{
|
|
return rendererIsEverNeeded() && style.display() != DisplayType::None && style.display() != DisplayType::Contents;
|
|
}
|
|
|
|
RenderPtr<RenderElement> Element::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
|
|
{
|
|
return RenderElement::createFor(*this, WTFMove(style));
|
|
}
|
|
|
|
Node::InsertedIntoAncestorResult Element::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
|
|
{
|
|
ContainerNode::insertedIntoAncestor(insertionType, parentOfInsertedTree);
|
|
|
|
#if ENABLE(FULLSCREEN_API)
|
|
if (containsFullScreenElement() && parentElement() && !parentElement()->containsFullScreenElement())
|
|
setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(true);
|
|
#endif
|
|
|
|
if (parentNode() == &parentOfInsertedTree) {
|
|
if (auto* shadowRoot = parentNode()->shadowRoot())
|
|
shadowRoot->hostChildElementDidChange(*this);
|
|
}
|
|
|
|
if (!parentOfInsertedTree.isInTreeScope())
|
|
return InsertedIntoAncestorResult::Done;
|
|
|
|
bool becomeConnected = insertionType.connectedToDocument;
|
|
TreeScope* newScope = &parentOfInsertedTree.treeScope();
|
|
HTMLDocument* newDocument = becomeConnected && is<HTMLDocument>(newScope->documentScope()) ? &downcast<HTMLDocument>(newScope->documentScope()) : nullptr;
|
|
if (!insertionType.treeScopeChanged)
|
|
newScope = nullptr;
|
|
|
|
const AtomString& idValue = getIdAttribute();
|
|
if (!idValue.isNull()) {
|
|
if (newScope)
|
|
updateIdForTreeScope(*newScope, nullAtom(), idValue);
|
|
if (newDocument)
|
|
updateIdForDocument(*newDocument, nullAtom(), idValue, AlwaysUpdateHTMLDocumentNamedItemMaps);
|
|
}
|
|
|
|
const AtomString& nameValue = getNameAttribute();
|
|
if (!nameValue.isNull()) {
|
|
if (newScope)
|
|
updateNameForTreeScope(*newScope, nullAtom(), nameValue);
|
|
if (newDocument)
|
|
updateNameForDocument(*newDocument, nullAtom(), nameValue);
|
|
}
|
|
|
|
if (newScope && hasTagName(labelTag)) {
|
|
if (newScope->shouldCacheLabelsByForAttribute())
|
|
updateLabel(*newScope, nullAtom(), attributeWithoutSynchronization(forAttr));
|
|
}
|
|
|
|
if (becomeConnected) {
|
|
if (UNLIKELY(isCustomElementUpgradeCandidate())) {
|
|
ASSERT(isConnected());
|
|
CustomElementReactionQueue::tryToUpgradeElement(*this);
|
|
}
|
|
if (UNLIKELY(isDefinedCustomElement()))
|
|
CustomElementReactionQueue::enqueueConnectedCallbackIfNeeded(*this);
|
|
}
|
|
|
|
if (UNLIKELY(hasTagName(articleTag) && newDocument))
|
|
newDocument->registerArticleElement(*this);
|
|
|
|
return InsertedIntoAncestorResult::Done;
|
|
}
|
|
|
|
void Element::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree)
|
|
{
|
|
document().removeFromTopLayer(*this);
|
|
|
|
#if ENABLE(FULLSCREEN_API)
|
|
if (containsFullScreenElement())
|
|
setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(false);
|
|
#endif
|
|
|
|
if (auto* page = document().page()) {
|
|
#if ENABLE(POINTER_LOCK)
|
|
page->pointerLockController().elementWasRemoved(*this);
|
|
#endif
|
|
page->pointerCaptureController().elementWasRemoved(*this);
|
|
}
|
|
|
|
setSavedLayerScrollPosition(ScrollPosition());
|
|
|
|
if (oldParentOfRemovedTree.isInTreeScope()) {
|
|
TreeScope* oldScope = &oldParentOfRemovedTree.treeScope();
|
|
Document* oldDocument = removalType.disconnectedFromDocument ? &oldScope->documentScope() : nullptr;
|
|
HTMLDocument* oldHTMLDocument = oldDocument && is<HTMLDocument>(*oldDocument) ? &downcast<HTMLDocument>(*oldDocument) : nullptr;
|
|
if (!removalType.treeScopeChanged)
|
|
oldScope = nullptr;
|
|
|
|
const AtomString& idValue = getIdAttribute();
|
|
if (!idValue.isNull()) {
|
|
if (oldScope)
|
|
updateIdForTreeScope(*oldScope, idValue, nullAtom());
|
|
if (oldHTMLDocument)
|
|
updateIdForDocument(*oldHTMLDocument, idValue, nullAtom(), AlwaysUpdateHTMLDocumentNamedItemMaps);
|
|
}
|
|
|
|
const AtomString& nameValue = getNameAttribute();
|
|
if (!nameValue.isNull()) {
|
|
if (oldScope)
|
|
updateNameForTreeScope(*oldScope, nameValue, nullAtom());
|
|
if (oldHTMLDocument)
|
|
updateNameForDocument(*oldHTMLDocument, nameValue, nullAtom());
|
|
}
|
|
|
|
if (oldScope && hasTagName(labelTag)) {
|
|
if (oldScope->shouldCacheLabelsByForAttribute())
|
|
updateLabel(*oldScope, attributeWithoutSynchronization(forAttr), nullAtom());
|
|
}
|
|
|
|
if (oldDocument) {
|
|
if (oldDocument->cssTarget() == this)
|
|
oldDocument->setCSSTarget(nullptr);
|
|
if (UNLIKELY(hasTagName(articleTag)))
|
|
oldDocument->unregisterArticleElement(*this);
|
|
}
|
|
|
|
if (removalType.disconnectedFromDocument && UNLIKELY(isDefinedCustomElement()))
|
|
CustomElementReactionQueue::enqueueDisconnectedCallbackIfNeeded(*this);
|
|
}
|
|
|
|
if (!parentNode()) {
|
|
if (auto* shadowRoot = oldParentOfRemovedTree.shadowRoot())
|
|
shadowRoot->hostChildElementDidChange(*this);
|
|
}
|
|
|
|
clearBeforePseudoElement();
|
|
clearAfterPseudoElement();
|
|
|
|
ContainerNode::removedFromAncestor(removalType, oldParentOfRemovedTree);
|
|
|
|
if (hasPendingResources())
|
|
document().accessSVGExtensions().removeElementFromPendingResources(*this);
|
|
|
|
RefPtr<Frame> frame = document().frame();
|
|
Styleable::fromElement(*this).elementWasRemoved();
|
|
|
|
#if ENABLE(WHEEL_EVENT_LATCHING)
|
|
if (frame && frame->page()) {
|
|
if (auto* scrollLatchingController = frame->page()->scrollLatchingControllerIfExists())
|
|
scrollLatchingController->removeLatchingStateForTarget(*this);
|
|
}
|
|
#endif
|
|
|
|
if (hasNodeFlag(NodeFlag::HasElementIdentifier)) {
|
|
document().identifiedElementWasRemovedFromDocument(*this);
|
|
clearNodeFlag(NodeFlag::HasElementIdentifier);
|
|
}
|
|
}
|
|
|
|
ShadowRoot* Element::shadowRoot() const
|
|
{
|
|
return hasRareData() ? elementRareData()->shadowRoot() : nullptr;
|
|
}
|
|
|
|
void Element::addShadowRoot(Ref<ShadowRoot>&& newShadowRoot)
|
|
{
|
|
ASSERT(!newShadowRoot->hasChildNodes());
|
|
ASSERT(!shadowRoot());
|
|
|
|
ShadowRoot& shadowRoot = newShadowRoot;
|
|
{
|
|
WidgetHierarchyUpdatesSuspensionScope suspendWidgetHierarchyUpdates;
|
|
ScriptDisallowedScope::InMainThread scriptDisallowedScope;
|
|
if (renderer() || hasDisplayContents())
|
|
RenderTreeUpdater::tearDownRenderers(*this);
|
|
|
|
ensureElementRareData().setShadowRoot(WTFMove(newShadowRoot));
|
|
|
|
shadowRoot.setHost(makeWeakPtr<Element>(this));
|
|
shadowRoot.setParentTreeScope(treeScope());
|
|
|
|
#if ASSERT_ENABLED
|
|
ASSERT(notifyChildNodeInserted(*this, shadowRoot).isEmpty());
|
|
#else
|
|
notifyChildNodeInserted(*this, shadowRoot);
|
|
#endif
|
|
|
|
InspectorInstrumentation::didPushShadowRoot(*this, shadowRoot);
|
|
|
|
invalidateStyleAndRenderersForSubtree();
|
|
}
|
|
|
|
if (shadowRoot.mode() == ShadowRootMode::UserAgent)
|
|
didAddUserAgentShadowRoot(shadowRoot);
|
|
}
|
|
|
|
void Element::removeShadowRoot()
|
|
{
|
|
RefPtr<ShadowRoot> oldRoot = shadowRoot();
|
|
if (!oldRoot)
|
|
return;
|
|
|
|
InspectorInstrumentation::willPopShadowRoot(*this, *oldRoot);
|
|
document().adjustFocusedNodeOnNodeRemoval(*oldRoot);
|
|
|
|
ASSERT(!oldRoot->renderer());
|
|
|
|
elementRareData()->clearShadowRoot();
|
|
|
|
oldRoot->setHost(nullptr);
|
|
oldRoot->setParentTreeScope(document());
|
|
}
|
|
|
|
static bool canAttachAuthorShadowRoot(const Element& element)
|
|
{
|
|
static NeverDestroyed<MemoryCompactLookupOnlyRobinHoodHashSet<AtomString>> tagNames = [] {
|
|
static const HTMLQualifiedName* const tagList[] = {
|
|
&articleTag.get(),
|
|
&asideTag.get(),
|
|
&blockquoteTag.get(),
|
|
&bodyTag.get(),
|
|
&divTag.get(),
|
|
&footerTag.get(),
|
|
&h1Tag.get(),
|
|
&h2Tag.get(),
|
|
&h3Tag.get(),
|
|
&h4Tag.get(),
|
|
&h5Tag.get(),
|
|
&h6Tag.get(),
|
|
&headerTag.get(),
|
|
&mainTag.get(),
|
|
&navTag.get(),
|
|
&pTag.get(),
|
|
§ionTag.get(),
|
|
&spanTag.get()
|
|
};
|
|
MemoryCompactLookupOnlyRobinHoodHashSet<AtomString> set;
|
|
set.reserveInitialCapacity(sizeof(tagList));
|
|
for (auto& name : tagList)
|
|
set.add(name->localName());
|
|
return set;
|
|
}();
|
|
|
|
if (!is<HTMLElement>(element))
|
|
return false;
|
|
|
|
const auto& localName = element.localName();
|
|
return tagNames.get().contains(localName) || Document::validateCustomElementName(localName) == CustomElementNameValidationStatus::Valid;
|
|
}
|
|
|
|
ExceptionOr<ShadowRoot&> Element::attachShadow(const ShadowRootInit& init)
|
|
{
|
|
if (!canAttachAuthorShadowRoot(*this))
|
|
return Exception { NotSupportedError };
|
|
if (shadowRoot())
|
|
return Exception { NotSupportedError };
|
|
if (init.mode == ShadowRootMode::UserAgent)
|
|
return Exception { TypeError };
|
|
auto shadow = ShadowRoot::create(document(), init.mode, init.delegatesFocus ? ShadowRoot::DelegatesFocus::Yes : ShadowRoot::DelegatesFocus::No);
|
|
auto& result = shadow.get();
|
|
addShadowRoot(WTFMove(shadow));
|
|
return result;
|
|
}
|
|
|
|
ShadowRoot* Element::shadowRootForBindings(JSC::JSGlobalObject& lexicalGlobalObject) const
|
|
{
|
|
auto* shadow = shadowRoot();
|
|
if (!shadow)
|
|
return nullptr;
|
|
if (shadow->mode() == ShadowRootMode::Open)
|
|
return shadow;
|
|
if (JSC::jsCast<JSDOMGlobalObject*>(&lexicalGlobalObject)->world().shadowRootIsAlwaysOpen())
|
|
return shadow;
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<ShadowRoot> Element::userAgentShadowRoot() const
|
|
{
|
|
ASSERT(!shadowRoot() || shadowRoot()->mode() == ShadowRootMode::UserAgent);
|
|
return shadowRoot();
|
|
}
|
|
|
|
ShadowRoot& Element::ensureUserAgentShadowRoot()
|
|
{
|
|
if (auto shadow = userAgentShadowRoot())
|
|
return *shadow;
|
|
return createUserAgentShadowRoot();
|
|
}
|
|
|
|
ShadowRoot& Element::createUserAgentShadowRoot()
|
|
{
|
|
ASSERT(!userAgentShadowRoot());
|
|
auto newShadow = ShadowRoot::create(document(), ShadowRootMode::UserAgent);
|
|
ShadowRoot& shadow = newShadow;
|
|
addShadowRoot(WTFMove(newShadow));
|
|
return shadow;
|
|
}
|
|
|
|
inline void Node::setCustomElementState(CustomElementState state)
|
|
{
|
|
auto bitfields = rareDataBitfields();
|
|
bitfields.customElementState = static_cast<uint16_t>(state);
|
|
setRareDataBitfields(bitfields);
|
|
}
|
|
|
|
void Element::setIsDefinedCustomElement(JSCustomElementInterface& elementInterface)
|
|
{
|
|
setCustomElementState(CustomElementState::Custom);
|
|
auto& data = ensureElementRareData();
|
|
if (!data.customElementReactionQueue())
|
|
data.setCustomElementReactionQueue(makeUnique<CustomElementReactionQueue>(elementInterface));
|
|
invalidateStyleForSubtree();
|
|
InspectorInstrumentation::didChangeCustomElementState(*this);
|
|
}
|
|
|
|
void Element::setIsFailedCustomElement()
|
|
{
|
|
setIsFailedCustomElementWithoutClearingReactionQueue();
|
|
clearReactionQueueFromFailedCustomElement();
|
|
}
|
|
|
|
void Element::setIsFailedCustomElementWithoutClearingReactionQueue()
|
|
{
|
|
ASSERT(isUndefinedCustomElement());
|
|
ASSERT(customElementState() == CustomElementState::Undefined);
|
|
setCustomElementState(CustomElementState::Failed);
|
|
InspectorInstrumentation::didChangeCustomElementState(*this);
|
|
}
|
|
|
|
void Element::clearReactionQueueFromFailedCustomElement()
|
|
{
|
|
ASSERT(isFailedCustomElement());
|
|
if (hasRareData()) {
|
|
// Clear the queue instead of deleting it since this function can be called inside CustomElementReactionQueue::invokeAll during upgrades.
|
|
if (auto* queue = elementRareData()->customElementReactionQueue())
|
|
queue->clear();
|
|
}
|
|
}
|
|
|
|
void Element::setIsCustomElementUpgradeCandidate()
|
|
{
|
|
ASSERT(customElementState() == CustomElementState::Uncustomized);
|
|
setCustomElementState(CustomElementState::Undefined);
|
|
InspectorInstrumentation::didChangeCustomElementState(*this);
|
|
}
|
|
|
|
void Element::enqueueToUpgrade(JSCustomElementInterface& elementInterface)
|
|
{
|
|
ASSERT(isCustomElementUpgradeCandidate());
|
|
ASSERT(!isDefinedCustomElement() && !isFailedCustomElement());
|
|
auto& data = ensureElementRareData();
|
|
bool alreadyScheduledToUpgrade = data.customElementReactionQueue();
|
|
if (!alreadyScheduledToUpgrade)
|
|
data.setCustomElementReactionQueue(makeUnique<CustomElementReactionQueue>(elementInterface));
|
|
data.customElementReactionQueue()->enqueueElementUpgrade(*this, alreadyScheduledToUpgrade);
|
|
}
|
|
|
|
CustomElementReactionQueue* Element::reactionQueue() const
|
|
{
|
|
#if ASSERT_ENABLED
|
|
if (isFailedCustomElement()) {
|
|
auto* queue = elementRareData()->customElementReactionQueue();
|
|
ASSERT(queue);
|
|
ASSERT(queue->isEmpty() || queue->hasJustUpgradeReaction());
|
|
} else
|
|
ASSERT(isDefinedCustomElement() || isCustomElementUpgradeCandidate());
|
|
#endif
|
|
if (!hasRareData())
|
|
return nullptr;
|
|
return elementRareData()->customElementReactionQueue();
|
|
}
|
|
|
|
const AtomString& Element::shadowPseudoId() const
|
|
{
|
|
return pseudo();
|
|
}
|
|
|
|
bool Element::childTypeAllowed(NodeType type) const
|
|
{
|
|
switch (type) {
|
|
case ELEMENT_NODE:
|
|
case TEXT_NODE:
|
|
case COMMENT_NODE:
|
|
case PROCESSING_INSTRUCTION_NODE:
|
|
case CDATA_SECTION_NODE:
|
|
return true;
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void checkForEmptyStyleChange(Element& element)
|
|
{
|
|
if (element.styleAffectedByEmpty()) {
|
|
auto* style = element.renderStyle();
|
|
if (!style || (!style->emptyState() || element.hasChildNodes()))
|
|
element.invalidateStyleForSubtree();
|
|
}
|
|
}
|
|
|
|
|
|
static void invalidateForForwardPositionalRules(Element& parent, Element* elementAfterChange)
|
|
{
|
|
bool childrenAffected = parent.childrenAffectedByForwardPositionalRules();
|
|
bool descendantsAffected = parent.descendantsAffectedByForwardPositionalRules();
|
|
|
|
if (!childrenAffected && !descendantsAffected)
|
|
return;
|
|
|
|
for (auto* sibling = elementAfterChange; sibling; sibling = sibling->nextElementSibling()) {
|
|
if (childrenAffected)
|
|
sibling->invalidateStyleInternal();
|
|
if (descendantsAffected) {
|
|
for (auto* siblingChild = sibling->firstElementChild(); siblingChild; siblingChild = siblingChild->nextElementSibling())
|
|
siblingChild->invalidateStyleForSubtreeInternal();
|
|
}
|
|
}
|
|
}
|
|
|
|
static void invalidateForBackwardPositionalRules(Element& parent, Element* elementBeforeChange)
|
|
{
|
|
bool childrenAffected = parent.childrenAffectedByBackwardPositionalRules();
|
|
bool descendantsAffected = parent.descendantsAffectedByBackwardPositionalRules();
|
|
|
|
if (!childrenAffected && !descendantsAffected)
|
|
return;
|
|
|
|
for (auto* sibling = elementBeforeChange; sibling; sibling = sibling->previousElementSibling()) {
|
|
if (childrenAffected)
|
|
sibling->invalidateStyleInternal();
|
|
if (descendantsAffected) {
|
|
for (auto* siblingChild = sibling->firstElementChild(); siblingChild; siblingChild = siblingChild->nextElementSibling())
|
|
siblingChild->invalidateStyleForSubtreeInternal();
|
|
}
|
|
}
|
|
}
|
|
|
|
enum SiblingCheckType { FinishedParsingChildren, SiblingElementRemoved, Other };
|
|
|
|
static void checkForSiblingStyleChanges(Element& parent, SiblingCheckType checkType, Element* elementBeforeChange, Element* elementAfterChange)
|
|
{
|
|
// :empty selector.
|
|
checkForEmptyStyleChange(parent);
|
|
|
|
if (parent.styleValidity() >= Style::Validity::SubtreeInvalid)
|
|
return;
|
|
|
|
// :first-child. In the parser callback case, we don't have to check anything, since we were right the first time.
|
|
// In the DOM case, we only need to do something if |afterChange| is not 0.
|
|
// |afterChange| is 0 in the parser case, so it works out that we'll skip this block.
|
|
if (parent.childrenAffectedByFirstChildRules() && elementAfterChange) {
|
|
// Find our new first child.
|
|
RefPtr<Element> newFirstElement = ElementTraversal::firstChild(parent);
|
|
// Find the first element node following |afterChange|
|
|
|
|
// This is the insert/append case.
|
|
if (newFirstElement != elementAfterChange) {
|
|
auto* style = elementAfterChange->renderStyle();
|
|
if (!style || style->firstChildState())
|
|
elementAfterChange->invalidateStyleForSubtreeInternal();
|
|
}
|
|
|
|
// We also have to handle node removal.
|
|
if (checkType == SiblingElementRemoved && newFirstElement == elementAfterChange && newFirstElement) {
|
|
auto* style = newFirstElement->renderStyle();
|
|
if (!style || !style->firstChildState())
|
|
newFirstElement->invalidateStyleForSubtreeInternal();
|
|
}
|
|
}
|
|
|
|
// :last-child. In the parser callback case, we don't have to check anything, since we were right the first time.
|
|
// In the DOM case, we only need to do something if |afterChange| is not 0.
|
|
if (parent.childrenAffectedByLastChildRules() && elementBeforeChange) {
|
|
// Find our new last child.
|
|
RefPtr<Element> newLastElement = ElementTraversal::lastChild(parent);
|
|
|
|
if (newLastElement != elementBeforeChange) {
|
|
auto* style = elementBeforeChange->renderStyle();
|
|
if (!style || style->lastChildState())
|
|
elementBeforeChange->invalidateStyleForSubtreeInternal();
|
|
}
|
|
|
|
// We also have to handle node removal. The parser callback case is similar to node removal as well in that we need to change the last child
|
|
// to match now.
|
|
if ((checkType == SiblingElementRemoved || checkType == FinishedParsingChildren) && newLastElement == elementBeforeChange && newLastElement) {
|
|
auto* style = newLastElement->renderStyle();
|
|
if (!style || !style->lastChildState())
|
|
newLastElement->invalidateStyleForSubtreeInternal();
|
|
}
|
|
}
|
|
|
|
invalidateForSiblingCombinators(elementAfterChange);
|
|
|
|
invalidateForForwardPositionalRules(parent, elementAfterChange);
|
|
invalidateForBackwardPositionalRules(parent, elementBeforeChange);
|
|
}
|
|
|
|
void Element::childrenChanged(const ChildChange& change)
|
|
{
|
|
ContainerNode::childrenChanged(change);
|
|
if (change.source == ChildChange::Source::Parser)
|
|
checkForEmptyStyleChange(*this);
|
|
else {
|
|
auto checkType = change.type == ChildChange::Type::ElementRemoved ? SiblingElementRemoved : Other;
|
|
checkForSiblingStyleChanges(*this, checkType, change.previousSiblingElement, change.nextSiblingElement);
|
|
}
|
|
|
|
if (ShadowRoot* shadowRoot = this->shadowRoot()) {
|
|
switch (change.type) {
|
|
case ChildChange::Type::ElementInserted:
|
|
case ChildChange::Type::ElementRemoved:
|
|
// For elements, we notify shadowRoot in Element::insertedIntoAncestor and Element::removedFromAncestor.
|
|
break;
|
|
case ChildChange::Type::AllChildrenRemoved:
|
|
case ChildChange::Type::AllChildrenReplaced:
|
|
shadowRoot->didRemoveAllChildrenOfShadowHost();
|
|
break;
|
|
case ChildChange::Type::TextInserted:
|
|
case ChildChange::Type::TextRemoved:
|
|
case ChildChange::Type::TextChanged:
|
|
shadowRoot->didChangeDefaultSlot();
|
|
break;
|
|
case ChildChange::Type::NonContentsChildInserted:
|
|
case ChildChange::Type::NonContentsChildRemoved:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Element::setAttributeEventListener(const AtomString& eventType, const QualifiedName& attributeName, const AtomString& attributeValue)
|
|
{
|
|
setAttributeEventListener(eventType, JSLazyEventListener::create(*this, attributeName, attributeValue), mainThreadNormalWorld());
|
|
}
|
|
|
|
void Element::removeAllEventListeners()
|
|
{
|
|
ContainerNode::removeAllEventListeners();
|
|
if (ShadowRoot* shadowRoot = this->shadowRoot())
|
|
shadowRoot->removeAllEventListeners();
|
|
}
|
|
|
|
void Element::beginParsingChildren()
|
|
{
|
|
clearIsParsingChildrenFinished();
|
|
}
|
|
|
|
void Element::finishParsingChildren()
|
|
{
|
|
ContainerNode::finishParsingChildren();
|
|
setIsParsingChildrenFinished();
|
|
checkForSiblingStyleChanges(*this, FinishedParsingChildren, ElementTraversal::lastChild(*this), nullptr);
|
|
}
|
|
|
|
static void appendAttributes(StringBuilder& builder, const Element& element)
|
|
{
|
|
if (element.hasID())
|
|
builder.append(" id=\'", element.getIdAttribute(), '\'');
|
|
|
|
if (element.hasClass()) {
|
|
builder.append(" class=\'");
|
|
size_t classNamesToDump = element.classNames().size();
|
|
constexpr size_t maxNumClassNames = 7;
|
|
bool addEllipsis = false;
|
|
if (classNamesToDump > maxNumClassNames) {
|
|
classNamesToDump = maxNumClassNames;
|
|
addEllipsis = true;
|
|
}
|
|
|
|
for (size_t i = 0; i < classNamesToDump; ++i) {
|
|
if (i > 0)
|
|
builder.append(' ');
|
|
builder.append(element.classNames()[i]);
|
|
}
|
|
if (addEllipsis)
|
|
builder.append(" ...");
|
|
builder.append('\'');
|
|
}
|
|
}
|
|
|
|
String Element::description() const
|
|
{
|
|
StringBuilder builder;
|
|
|
|
builder.append(ContainerNode::description());
|
|
appendAttributes(builder, *this);
|
|
|
|
return builder.toString();
|
|
}
|
|
|
|
String Element::debugDescription() const
|
|
{
|
|
StringBuilder builder;
|
|
|
|
builder.append(ContainerNode::debugDescription());
|
|
appendAttributes(builder, *this);
|
|
|
|
return builder.toString();
|
|
}
|
|
|
|
const Vector<RefPtr<Attr>>& Element::attrNodeList()
|
|
{
|
|
ASSERT(hasSyntheticAttrChildNodes());
|
|
return *attrNodeListForElement(*this);
|
|
}
|
|
|
|
void Element::attachAttributeNodeIfNeeded(Attr& attrNode)
|
|
{
|
|
ASSERT(!attrNode.ownerElement() || attrNode.ownerElement() == this);
|
|
if (attrNode.ownerElement() == this)
|
|
return;
|
|
|
|
ScriptDisallowedScope::InMainThread scriptDisallowedScope;
|
|
|
|
attrNode.attachToElement(*this);
|
|
ensureAttrNodeListForElement(*this).append(&attrNode);
|
|
}
|
|
|
|
ExceptionOr<RefPtr<Attr>> Element::setAttributeNode(Attr& attrNode)
|
|
{
|
|
RefPtr<Attr> oldAttrNode = attrIfExists(attrNode.localName(), shouldIgnoreAttributeCase(*this));
|
|
if (oldAttrNode.get() == &attrNode)
|
|
return oldAttrNode;
|
|
|
|
// InUseAttributeError: Raised if node is an Attr that is already an attribute of another Element object.
|
|
// The DOM user must explicitly clone Attr nodes to re-use them in other elements.
|
|
if (attrNode.ownerElement() && attrNode.ownerElement() != this)
|
|
return Exception { InUseAttributeError };
|
|
|
|
{
|
|
ScriptDisallowedScope::InMainThread scriptDisallowedScope;
|
|
synchronizeAllAttributes();
|
|
}
|
|
|
|
auto& elementData = ensureUniqueElementData();
|
|
|
|
auto existingAttributeIndex = elementData.findAttributeIndexByName(attrNode.localName(), shouldIgnoreAttributeCase(*this));
|
|
|
|
// Attr::value() will return its 'm_standaloneValue' member any time its Element is set to nullptr. We need to cache this value
|
|
// before making changes to attrNode's Element connections.
|
|
auto attrNodeValue = attrNode.value();
|
|
|
|
if (existingAttributeIndex == ElementData::attributeNotFound) {
|
|
attachAttributeNodeIfNeeded(attrNode);
|
|
setAttributeInternal(elementData.findAttributeIndexByName(attrNode.qualifiedName()), attrNode.qualifiedName(), attrNodeValue, NotInSynchronizationOfLazyAttribute);
|
|
} else {
|
|
const Attribute& attribute = attributeAt(existingAttributeIndex);
|
|
if (oldAttrNode)
|
|
detachAttrNodeFromElementWithValue(oldAttrNode.get(), attribute.value());
|
|
else
|
|
oldAttrNode = Attr::create(document(), attrNode.qualifiedName(), attribute.value());
|
|
|
|
attachAttributeNodeIfNeeded(attrNode);
|
|
|
|
if (attribute.name().matches(attrNode.qualifiedName()))
|
|
setAttributeInternal(existingAttributeIndex, attrNode.qualifiedName(), attrNodeValue, NotInSynchronizationOfLazyAttribute);
|
|
else {
|
|
removeAttributeInternal(existingAttributeIndex, NotInSynchronizationOfLazyAttribute);
|
|
setAttributeInternal(ensureUniqueElementData().findAttributeIndexByName(attrNode.qualifiedName()), attrNode.qualifiedName(), attrNodeValue, NotInSynchronizationOfLazyAttribute);
|
|
}
|
|
}
|
|
|
|
return oldAttrNode;
|
|
}
|
|
|
|
ExceptionOr<RefPtr<Attr>> Element::setAttributeNodeNS(Attr& attrNode)
|
|
{
|
|
RefPtr<Attr> oldAttrNode = attrIfExists(attrNode.qualifiedName());
|
|
if (oldAttrNode.get() == &attrNode)
|
|
return oldAttrNode;
|
|
|
|
// InUseAttributeError: Raised if node is an Attr that is already an attribute of another Element object.
|
|
// The DOM user must explicitly clone Attr nodes to re-use them in other elements.
|
|
if (attrNode.ownerElement() && attrNode.ownerElement() != this)
|
|
return Exception { InUseAttributeError };
|
|
|
|
// Attr::value() will return its 'm_standaloneValue' member any time its Element is set to nullptr. We need to cache this value
|
|
// before making changes to attrNode's Element connections.
|
|
auto attrNodeValue = attrNode.value();
|
|
unsigned index = 0;
|
|
{
|
|
ScriptDisallowedScope::InMainThread scriptDisallowedScope;
|
|
synchronizeAllAttributes();
|
|
auto& elementData = ensureUniqueElementData();
|
|
|
|
index = elementData.findAttributeIndexByName(attrNode.qualifiedName());
|
|
|
|
if (index != ElementData::attributeNotFound) {
|
|
if (oldAttrNode)
|
|
detachAttrNodeFromElementWithValue(oldAttrNode.get(), elementData.attributeAt(index).value());
|
|
else
|
|
oldAttrNode = Attr::create(document(), attrNode.qualifiedName(), elementData.attributeAt(index).value());
|
|
}
|
|
}
|
|
|
|
attachAttributeNodeIfNeeded(attrNode);
|
|
setAttributeInternal(index, attrNode.qualifiedName(), attrNodeValue, NotInSynchronizationOfLazyAttribute);
|
|
|
|
return oldAttrNode;
|
|
}
|
|
|
|
ExceptionOr<Ref<Attr>> Element::removeAttributeNode(Attr& attr)
|
|
{
|
|
if (attr.ownerElement() != this)
|
|
return Exception { NotFoundError };
|
|
|
|
ASSERT(&document() == &attr.document());
|
|
|
|
synchronizeAllAttributes();
|
|
|
|
if (!m_elementData)
|
|
return Exception { NotFoundError };
|
|
|
|
auto existingAttributeIndex = m_elementData->findAttributeIndexByName(attr.qualifiedName());
|
|
if (existingAttributeIndex == ElementData::attributeNotFound)
|
|
return Exception { NotFoundError };
|
|
|
|
Ref<Attr> oldAttrNode { attr };
|
|
|
|
detachAttrNodeFromElementWithValue(&attr, m_elementData->attributeAt(existingAttributeIndex).value());
|
|
removeAttributeInternal(existingAttributeIndex, NotInSynchronizationOfLazyAttribute);
|
|
|
|
return oldAttrNode;
|
|
}
|
|
|
|
ExceptionOr<QualifiedName> Element::parseAttributeName(const AtomString& namespaceURI, const AtomString& qualifiedName)
|
|
{
|
|
auto parseResult = Document::parseQualifiedName(namespaceURI, qualifiedName);
|
|
if (parseResult.hasException())
|
|
return parseResult.releaseException();
|
|
QualifiedName parsedAttributeName { parseResult.releaseReturnValue() };
|
|
if (!Document::hasValidNamespaceForAttributes(parsedAttributeName))
|
|
return Exception { NamespaceError };
|
|
return parsedAttributeName;
|
|
}
|
|
|
|
ExceptionOr<void> Element::setAttributeNS(const AtomString& namespaceURI, const AtomString& qualifiedName, const AtomString& value)
|
|
{
|
|
auto result = parseAttributeName(namespaceURI, qualifiedName);
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
setAttribute(result.releaseReturnValue(), value);
|
|
return { };
|
|
}
|
|
|
|
void Element::removeAttributeInternal(unsigned index, SynchronizationOfLazyAttribute inSynchronizationOfLazyAttribute)
|
|
{
|
|
ASSERT_WITH_SECURITY_IMPLICATION(index < attributeCount());
|
|
|
|
UniqueElementData& elementData = ensureUniqueElementData();
|
|
|
|
QualifiedName name = elementData.attributeAt(index).name();
|
|
AtomString valueBeingRemoved = elementData.attributeAt(index).value();
|
|
|
|
if (RefPtr<Attr> attrNode = attrIfExists(name))
|
|
detachAttrNodeFromElementWithValue(attrNode.get(), elementData.attributeAt(index).value());
|
|
|
|
if (inSynchronizationOfLazyAttribute) {
|
|
elementData.removeAttribute(index);
|
|
return;
|
|
}
|
|
|
|
ASSERT(!valueBeingRemoved.isNull());
|
|
willModifyAttribute(name, valueBeingRemoved, nullAtom());
|
|
{
|
|
Style::AttributeChangeInvalidation styleInvalidation(*this, name, valueBeingRemoved, nullAtom());
|
|
elementData.removeAttribute(index);
|
|
}
|
|
|
|
didRemoveAttribute(name, valueBeingRemoved);
|
|
}
|
|
|
|
void Element::addAttributeInternal(const QualifiedName& name, const AtomString& value, SynchronizationOfLazyAttribute inSynchronizationOfLazyAttribute)
|
|
{
|
|
if (inSynchronizationOfLazyAttribute) {
|
|
ensureUniqueElementData().addAttribute(name, value);
|
|
return;
|
|
}
|
|
|
|
willModifyAttribute(name, nullAtom(), value);
|
|
{
|
|
Style::AttributeChangeInvalidation styleInvalidation(*this, name, nullAtom(), value);
|
|
ensureUniqueElementData().addAttribute(name, value);
|
|
}
|
|
didAddAttribute(name, value);
|
|
}
|
|
|
|
bool Element::removeAttribute(const AtomString& qualifiedName)
|
|
{
|
|
if (!elementData())
|
|
return false;
|
|
|
|
AtomString caseAdjustedQualifiedName = shouldIgnoreAttributeCase(*this) ? qualifiedName.convertToASCIILowercase() : qualifiedName;
|
|
unsigned index = elementData()->findAttributeIndexByName(caseAdjustedQualifiedName, false);
|
|
if (index == ElementData::attributeNotFound) {
|
|
if (UNLIKELY(caseAdjustedQualifiedName == styleAttr) && elementData()->styleAttributeIsDirty() && is<StyledElement>(*this))
|
|
downcast<StyledElement>(*this).removeAllInlineStyleProperties();
|
|
return false;
|
|
}
|
|
|
|
removeAttributeInternal(index, NotInSynchronizationOfLazyAttribute);
|
|
return true;
|
|
}
|
|
|
|
bool Element::removeAttributeNS(const AtomString& namespaceURI, const AtomString& localName)
|
|
{
|
|
return removeAttribute(QualifiedName(nullAtom(), localName, namespaceURI));
|
|
}
|
|
|
|
RefPtr<Attr> Element::getAttributeNode(const AtomString& qualifiedName)
|
|
{
|
|
if (!elementData())
|
|
return nullptr;
|
|
synchronizeAttribute(qualifiedName);
|
|
const Attribute* attribute = elementData()->findAttributeByName(qualifiedName, shouldIgnoreAttributeCase(*this));
|
|
if (!attribute)
|
|
return nullptr;
|
|
return ensureAttr(attribute->name());
|
|
}
|
|
|
|
RefPtr<Attr> Element::getAttributeNodeNS(const AtomString& namespaceURI, const AtomString& localName)
|
|
{
|
|
if (!elementData())
|
|
return 0;
|
|
QualifiedName qName(nullAtom(), localName, namespaceURI);
|
|
synchronizeAttribute(qName);
|
|
const Attribute* attribute = elementData()->findAttributeByName(qName);
|
|
if (!attribute)
|
|
return 0;
|
|
return ensureAttr(attribute->name());
|
|
}
|
|
|
|
bool Element::hasAttribute(const AtomString& qualifiedName) const
|
|
{
|
|
if (!elementData())
|
|
return false;
|
|
synchronizeAttribute(qualifiedName);
|
|
return elementData()->findAttributeByName(qualifiedName, shouldIgnoreAttributeCase(*this));
|
|
}
|
|
|
|
bool Element::hasAttributeNS(const AtomString& namespaceURI, const AtomString& localName) const
|
|
{
|
|
if (!elementData())
|
|
return false;
|
|
QualifiedName qName(nullAtom(), localName, namespaceURI);
|
|
synchronizeAttribute(qName);
|
|
return elementData()->findAttributeByName(qName);
|
|
}
|
|
|
|
static RefPtr<ShadowRoot> shadowRootWithDelegatesFocus(const Element& element)
|
|
{
|
|
if (auto* root = element.shadowRoot()) {
|
|
if (root->delegatesFocus())
|
|
return root;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
static bool isProgramaticallyFocusable(Element& element)
|
|
{
|
|
ScriptDisallowedScope::InMainThread scriptDisallowedScope;
|
|
|
|
if (shadowRootWithDelegatesFocus(element))
|
|
return false;
|
|
|
|
// If the stylesheets have already been loaded we can reliably check isFocusable.
|
|
// If not, we continue and set the focused node on the focus controller below so that it can be updated soon after attach.
|
|
if (element.document().haveStylesheetsLoaded()) {
|
|
if (!element.isFocusable())
|
|
return false;
|
|
}
|
|
return element.supportsFocus();
|
|
}
|
|
|
|
static RefPtr<Element> findFirstProgramaticallyFocusableElementInComposedTree(Element& host)
|
|
{
|
|
ASSERT(host.shadowRoot());
|
|
for (auto& node : composedTreeDescendants(host)) {
|
|
if (!is<Element>(node))
|
|
continue;
|
|
auto& element = downcast<Element>(node);
|
|
if (isProgramaticallyFocusable(element))
|
|
return &element;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void Element::focus(const FocusOptions& options)
|
|
{
|
|
if (!isConnected())
|
|
return;
|
|
|
|
auto document = makeRef(this->document());
|
|
if (document->focusedElement() == this) {
|
|
if (document->page())
|
|
document->page()->chrome().client().elementDidRefocus(*this);
|
|
return;
|
|
}
|
|
|
|
RefPtr<Element> newTarget = this;
|
|
|
|
// If we don't have renderer yet, isFocusable will compute it without style update.
|
|
// FIXME: Expand it to avoid style update in all cases.
|
|
if (renderer() && document->haveStylesheetsLoaded())
|
|
document->updateStyleIfNeeded();
|
|
|
|
if (&newTarget->document() != document.ptr())
|
|
return;
|
|
|
|
if (auto root = shadowRootWithDelegatesFocus(*this)) {
|
|
auto currentlyFocusedElement = makeRefPtr(document->focusedElement());
|
|
if (root->containsIncludingShadowDOM(currentlyFocusedElement.get())) {
|
|
if (document->page())
|
|
document->page()->chrome().client().elementDidRefocus(*currentlyFocusedElement);
|
|
return;
|
|
}
|
|
|
|
newTarget = findFirstProgramaticallyFocusableElementInComposedTree(*this);
|
|
if (!newTarget)
|
|
return;
|
|
} else if (!isProgramaticallyFocusable(*newTarget))
|
|
return;
|
|
|
|
if (Page* page = document->page()) {
|
|
auto& frame = *document->frame();
|
|
if (!frame.hasHadUserInteraction() && !frame.isMainFrame() && !document->topDocument().securityOrigin().isSameOriginDomain(document->securityOrigin()))
|
|
return;
|
|
|
|
FocusOptions optionsWithVisibility = options;
|
|
if (!document->wasLastFocusByClick())
|
|
optionsWithVisibility.visibility = FocusVisibility::Visible;
|
|
|
|
// Focus and change event handlers can cause us to lose our last ref.
|
|
// If a focus event handler changes the focus to a different node it
|
|
// does not make sense to continue and update appearence.
|
|
if (!page->focusController().setFocusedElement(newTarget.get(), *document->frame(), optionsWithVisibility))
|
|
return;
|
|
}
|
|
|
|
newTarget->findTargetAndUpdateFocusAppearance(options.selectionRestorationMode, options.preventScroll ? SelectionRevealMode::DoNotReveal : SelectionRevealMode::Reveal);
|
|
}
|
|
|
|
void Element::findTargetAndUpdateFocusAppearance(SelectionRestorationMode selectionMode, SelectionRevealMode revealMode)
|
|
{
|
|
#if PLATFORM(IOS_FAMILY)
|
|
// Focusing a form element triggers animation in UIKit to scroll to the right position.
|
|
// Calling updateFocusAppearance() would generate an unnecessary call to ScrollView::setScrollPosition(),
|
|
// which would jump us around during this animation. See <rdar://problem/6699741>.
|
|
if (revealMode == SelectionRevealMode::Reveal && is<HTMLFormControlElement>(*this))
|
|
revealMode = SelectionRevealMode::RevealUpToMainFrame;
|
|
#endif
|
|
|
|
auto target = focusAppearanceUpdateTarget();
|
|
if (!target)
|
|
return;
|
|
|
|
target->updateFocusAppearance(selectionMode, revealMode);
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/#focus-processing-model
|
|
RefPtr<Element> Element::focusAppearanceUpdateTarget()
|
|
{
|
|
return this;
|
|
}
|
|
|
|
void Element::updateFocusAppearance(SelectionRestorationMode, SelectionRevealMode revealMode)
|
|
{
|
|
if (isRootEditableElement()) {
|
|
// Keep frame alive in this method, since setSelection() may release the last reference to |frame|.
|
|
RefPtr<Frame> frame = document().frame();
|
|
if (!frame)
|
|
return;
|
|
|
|
// When focusing an editable element in an iframe, don't reset the selection if it already contains a selection.
|
|
if (this == frame->selection().selection().rootEditableElement())
|
|
return;
|
|
|
|
// FIXME: We should restore the previous selection if there is one.
|
|
VisibleSelection newSelection = VisibleSelection(firstPositionInOrBeforeNode(this));
|
|
|
|
if (frame->selection().shouldChangeSelection(newSelection)) {
|
|
frame->selection().setSelection(newSelection, FrameSelection::defaultSetSelectionOptions(), Element::defaultFocusTextStateChangeIntent());
|
|
frame->selection().revealSelection(revealMode);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (RefPtr<FrameView> view = document().view())
|
|
view->scheduleScrollToFocusedElement(revealMode);
|
|
}
|
|
|
|
void Element::blur()
|
|
{
|
|
if (treeScope().focusedElementInScope() == this) {
|
|
if (Frame* frame = document().frame())
|
|
frame->page()->focusController().setFocusedElement(nullptr, *frame);
|
|
else
|
|
document().setFocusedElement(nullptr);
|
|
}
|
|
}
|
|
|
|
void Element::dispatchFocusInEvent(const AtomString& eventType, RefPtr<Element>&& oldFocusedElement)
|
|
{
|
|
RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(ScriptDisallowedScope::InMainThread::isScriptAllowed() || !isInWebProcess());
|
|
ASSERT(eventType == eventNames().focusinEvent || eventType == eventNames().DOMFocusInEvent);
|
|
dispatchScopedEvent(FocusEvent::create(eventType, Event::CanBubble::Yes, Event::IsCancelable::No, document().windowProxy(), 0, WTFMove(oldFocusedElement)));
|
|
}
|
|
|
|
void Element::dispatchFocusOutEvent(const AtomString& eventType, RefPtr<Element>&& newFocusedElement)
|
|
{
|
|
RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(ScriptDisallowedScope::InMainThread::isScriptAllowed() || !isInWebProcess());
|
|
ASSERT(eventType == eventNames().focusoutEvent || eventType == eventNames().DOMFocusOutEvent);
|
|
dispatchScopedEvent(FocusEvent::create(eventType, Event::CanBubble::Yes, Event::IsCancelable::No, document().windowProxy(), 0, WTFMove(newFocusedElement)));
|
|
}
|
|
|
|
void Element::dispatchFocusEvent(RefPtr<Element>&& oldFocusedElement, FocusDirection)
|
|
{
|
|
if (auto* page = document().page())
|
|
page->chrome().client().elementDidFocus(*this);
|
|
dispatchEvent(FocusEvent::create(eventNames().focusEvent, Event::CanBubble::No, Event::IsCancelable::No, document().windowProxy(), 0, WTFMove(oldFocusedElement)));
|
|
}
|
|
|
|
void Element::dispatchBlurEvent(RefPtr<Element>&& newFocusedElement)
|
|
{
|
|
if (auto* page = document().page())
|
|
page->chrome().client().elementDidBlur(*this);
|
|
dispatchEvent(FocusEvent::create(eventNames().blurEvent, Event::CanBubble::No, Event::IsCancelable::No, document().windowProxy(), 0, WTFMove(newFocusedElement)));
|
|
}
|
|
|
|
void Element::dispatchWebKitImageReadyEventForTesting()
|
|
{
|
|
if (document().settings().webkitImageReadyEventEnabled())
|
|
dispatchEvent(Event::create("webkitImageFrameReady", Event::CanBubble::Yes, Event::IsCancelable::Yes));
|
|
}
|
|
|
|
bool Element::dispatchMouseForceWillBegin()
|
|
{
|
|
#if ENABLE(MOUSE_FORCE_EVENTS)
|
|
if (!document().hasListenerType(Document::FORCEWILLBEGIN_LISTENER))
|
|
return false;
|
|
|
|
Frame* frame = document().frame();
|
|
if (!frame)
|
|
return false;
|
|
|
|
PlatformMouseEvent platformMouseEvent { frame->eventHandler().lastKnownMousePosition(), frame->eventHandler().lastKnownMouseGlobalPosition(), NoButton, PlatformEvent::NoType, 1, false, false, false, false, WallTime::now(), ForceAtClick, NoTap };
|
|
auto mouseForceWillBeginEvent = MouseEvent::create(eventNames().webkitmouseforcewillbeginEvent, document().windowProxy(), platformMouseEvent, 0, nullptr);
|
|
mouseForceWillBeginEvent->setTarget(this);
|
|
dispatchEvent(mouseForceWillBeginEvent);
|
|
|
|
if (mouseForceWillBeginEvent->defaultHandled() || mouseForceWillBeginEvent->defaultPrevented())
|
|
return true;
|
|
#endif
|
|
|
|
return false;
|
|
}
|
|
|
|
ExceptionOr<void> Element::mergeWithNextTextNode(Text& node)
|
|
{
|
|
auto* next = node.nextSibling();
|
|
if (!is<Text>(next))
|
|
return { };
|
|
Ref<Text> textNext { downcast<Text>(*next) };
|
|
node.appendData(textNext->data());
|
|
return textNext->remove();
|
|
}
|
|
|
|
String Element::innerHTML() const
|
|
{
|
|
return serializeFragment(*this, SerializedNodes::SubtreesOfChildren);
|
|
}
|
|
|
|
String Element::outerHTML() const
|
|
{
|
|
return serializeFragment(*this, SerializedNodes::SubtreeIncludingNode);
|
|
}
|
|
|
|
ExceptionOr<void> Element::setOuterHTML(const String& html)
|
|
{
|
|
// The specification allows setting outerHTML on an Element whose parent is a DocumentFragment and Gecko supports this.
|
|
// However, as of June 2021, Blink matches our behavior and throws a NoModificationAllowedError for non-Element parents.
|
|
RefPtr parent = parentElement();
|
|
if (UNLIKELY(!parent)) {
|
|
if (!parentNode())
|
|
return Exception { NoModificationAllowedError, "Cannot set outerHTML on element because it doesn't have a parent" };
|
|
return Exception { NoModificationAllowedError, "Cannot set outerHTML on element because its parent is not an Element" };
|
|
}
|
|
|
|
RefPtr<Node> prev = previousSibling();
|
|
RefPtr<Node> next = nextSibling();
|
|
|
|
auto fragment = createFragmentForInnerOuterHTML(*parent, html, AllowScriptingContent);
|
|
if (fragment.hasException())
|
|
return fragment.releaseException();
|
|
|
|
auto replaceResult = parent->replaceChild(fragment.releaseReturnValue().get(), *this);
|
|
if (replaceResult.hasException())
|
|
return replaceResult.releaseException();
|
|
|
|
// The following is not part of the specification but matches Blink's behavior as of June 2021.
|
|
RefPtr<Node> node = next ? next->previousSibling() : nullptr;
|
|
if (is<Text>(node)) {
|
|
auto result = mergeWithNextTextNode(downcast<Text>(*node));
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
}
|
|
if (is<Text>(prev)) {
|
|
auto result = mergeWithNextTextNode(downcast<Text>(*prev));
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
}
|
|
return { };
|
|
}
|
|
|
|
ExceptionOr<void> Element::setInnerHTML(const String& html)
|
|
{
|
|
auto fragment = createFragmentForInnerOuterHTML(*this, html, AllowScriptingContent);
|
|
if (fragment.hasException())
|
|
return fragment.releaseException();
|
|
|
|
ContainerNode* container;
|
|
if (!is<HTMLTemplateElement>(*this))
|
|
container = this;
|
|
else
|
|
container = &downcast<HTMLTemplateElement>(*this).content();
|
|
|
|
return replaceChildrenWithFragment(*container, fragment.releaseReturnValue());
|
|
}
|
|
|
|
String Element::innerText()
|
|
{
|
|
// We need to update layout, since plainText uses line boxes in the render tree.
|
|
document().updateLayoutIgnorePendingStylesheets();
|
|
|
|
if (!renderer())
|
|
return textContent(true);
|
|
|
|
return plainText(makeRangeSelectingNodeContents(*this));
|
|
}
|
|
|
|
String Element::outerText()
|
|
{
|
|
// Getting outerText is the same as getting innerText, only
|
|
// setting is different. You would think this should get the plain
|
|
// text for the outer range, but this is wrong, <br> for instance
|
|
// would return different values for inner and outer text by such
|
|
// a rule, but it doesn't in WinIE, and we want to match that.
|
|
return innerText();
|
|
}
|
|
|
|
String Element::title() const
|
|
{
|
|
return String();
|
|
}
|
|
|
|
const AtomString& Element::pseudo() const
|
|
{
|
|
return attributeWithoutSynchronization(pseudoAttr);
|
|
}
|
|
|
|
void Element::setPseudo(const AtomString& value)
|
|
{
|
|
setAttributeWithoutSynchronization(pseudoAttr, value);
|
|
}
|
|
|
|
LayoutSize Element::minimumSizeForResizing() const
|
|
{
|
|
return hasRareData() ? elementRareData()->minimumSizeForResizing() : defaultMinimumSizeForResizing();
|
|
}
|
|
|
|
void Element::setMinimumSizeForResizing(const LayoutSize& size)
|
|
{
|
|
if (!hasRareData() && size == defaultMinimumSizeForResizing())
|
|
return;
|
|
ensureElementRareData().setMinimumSizeForResizing(size);
|
|
}
|
|
|
|
void Element::willBecomeFullscreenElement()
|
|
{
|
|
for (auto& child : descendantsOfType<Element>(*this))
|
|
child.ancestorWillEnterFullscreen();
|
|
}
|
|
|
|
void Element::isInTopLayerWillChange()
|
|
{
|
|
if (renderer()) {
|
|
if (renderer()->hasLayer())
|
|
downcast<RenderLayerModelObject>(*renderer()).layer()->establishesTopLayerWillChange();
|
|
}
|
|
}
|
|
|
|
void Element::isInTopLayerDidChange()
|
|
{
|
|
invalidateStyle();
|
|
|
|
if (renderer()) {
|
|
if (renderer()->hasLayer())
|
|
downcast<RenderLayerModelObject>(*renderer()).layer()->establishesTopLayerDidChange();
|
|
}
|
|
}
|
|
|
|
static PseudoElement* beforeOrAfterPseudoElement(const Element& host, PseudoId pseudoElementSpecifier)
|
|
{
|
|
switch (pseudoElementSpecifier) {
|
|
case PseudoId::Before:
|
|
return host.beforePseudoElement();
|
|
case PseudoId::After:
|
|
return host.afterPseudoElement();
|
|
default:
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
const RenderStyle* Element::existingComputedStyle() const
|
|
{
|
|
if (hasRareData()) {
|
|
if (auto* style = elementRareData()->computedStyle())
|
|
return style;
|
|
}
|
|
|
|
return renderStyle();
|
|
}
|
|
|
|
const RenderStyle* Element::renderOrDisplayContentsStyle(PseudoId pseudoId) const
|
|
{
|
|
if (pseudoId != PseudoId::None) {
|
|
if (auto* pseudoElement = beforeOrAfterPseudoElement(*this, pseudoId))
|
|
return pseudoElement->renderOrDisplayContentsStyle();
|
|
|
|
if (auto* computedStyle = existingComputedStyle()) {
|
|
if (auto* cachedPseudoStyle = computedStyle->getCachedPseudoStyle(pseudoId))
|
|
return cachedPseudoStyle;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
if (auto* style = renderStyle())
|
|
return style;
|
|
|
|
if (!hasRareData())
|
|
return nullptr;
|
|
auto* style = elementRareData()->computedStyle();
|
|
if (style && style->display() == DisplayType::Contents)
|
|
return style;
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
const RenderStyle* Element::resolveComputedStyle(ResolveComputedStyleMode mode)
|
|
{
|
|
ASSERT(isConnected());
|
|
ASSERT(!existingComputedStyle() || hasNodeFlag(NodeFlag::IsComputedStyleInvalidFlag));
|
|
|
|
Deque<RefPtr<Element>, 32> elementsRequiringComputedStyle({ this });
|
|
const RenderStyle* computedStyle = nullptr;
|
|
|
|
// Collect ancestors until we find one that has style.
|
|
for (auto& ancestor : composedTreeAncestors(*this)) {
|
|
if (auto* existingStyle = ancestor.existingComputedStyle()) {
|
|
computedStyle = existingStyle;
|
|
break;
|
|
}
|
|
elementsRequiringComputedStyle.prepend(&ancestor);
|
|
}
|
|
|
|
// On iOS request delegates called during styleForElement may result in re-entering WebKit and killing the style resolver.
|
|
Style::PostResolutionCallbackDisabler disabler(document(), Style::PostResolutionCallbackDisabler::DrainCallbacks::No);
|
|
|
|
// Resolve and cache styles starting from the most distant ancestor.
|
|
for (auto& element : elementsRequiringComputedStyle) {
|
|
auto style = document().styleForElementIgnoringPendingStylesheets(*element, computedStyle);
|
|
computedStyle = style.get();
|
|
ElementRareData& rareData = element->ensureElementRareData();
|
|
rareData.setComputedStyle(WTFMove(style));
|
|
element->clearNodeFlag(NodeFlag::IsComputedStyleInvalidFlag);
|
|
|
|
if (mode == ResolveComputedStyleMode::RenderedOnly && computedStyle->display() == DisplayType::None)
|
|
return nullptr;
|
|
}
|
|
|
|
return computedStyle;
|
|
}
|
|
|
|
bool Element::hasValidStyle() const
|
|
{
|
|
if (!document().needsStyleRecalc())
|
|
return true;
|
|
|
|
if (document().hasPendingFullStyleRebuild())
|
|
return false;
|
|
|
|
for (auto& element : lineageOfType<Element>(*this)) {
|
|
if (element.styleValidity() != Style::Validity::Valid)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Element::isVisibleWithoutResolvingFullStyle() const
|
|
{
|
|
|
|
if (renderStyle() || hasValidStyle())
|
|
return renderStyle() && renderStyle()->visibility() == Visibility::Visible;
|
|
|
|
auto computedStyleForElement = [](Element& element) -> const RenderStyle* {
|
|
auto* style = element.hasNodeFlag(NodeFlag::IsComputedStyleInvalidFlag) ? nullptr : element.existingComputedStyle();
|
|
return style ? style : element.resolveComputedStyle(ResolveComputedStyleMode::RenderedOnly);
|
|
};
|
|
|
|
// Compute style in yet unstyled subtree.
|
|
auto* style = computedStyleForElement(const_cast<Element&>(*this));
|
|
if (!style)
|
|
return false;
|
|
|
|
if (style->display() == DisplayType::None || style->display() == DisplayType::Contents)
|
|
return false;
|
|
|
|
if (style->visibility() != Visibility::Visible)
|
|
return false;
|
|
|
|
for (auto& element : composedTreeAncestors(const_cast<Element&>(*this))) {
|
|
auto* style = computedStyleForElement(element);
|
|
if (!style || style->display() == DisplayType::None)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
const RenderStyle& Element::resolvePseudoElementStyle(PseudoId pseudoElementSpecifier)
|
|
{
|
|
ASSERT(!isPseudoElement());
|
|
|
|
auto* parentStyle = existingComputedStyle();
|
|
ASSERT(parentStyle);
|
|
ASSERT(!parentStyle->getCachedPseudoStyle(pseudoElementSpecifier));
|
|
|
|
Style::PostResolutionCallbackDisabler disabler(document(), Style::PostResolutionCallbackDisabler::DrainCallbacks::No);
|
|
|
|
auto style = document().styleForElementIgnoringPendingStylesheets(*this, parentStyle, pseudoElementSpecifier);
|
|
if (!style) {
|
|
style = RenderStyle::createPtr();
|
|
style->inheritFrom(*parentStyle);
|
|
style->setStyleType(pseudoElementSpecifier);
|
|
}
|
|
|
|
auto* computedStyle = style.get();
|
|
const_cast<RenderStyle*>(parentStyle)->addCachedPseudoStyle(WTFMove(style));
|
|
return *computedStyle;
|
|
}
|
|
|
|
const RenderStyle* Element::computedStyle(PseudoId pseudoElementSpecifier)
|
|
{
|
|
if (!isConnected())
|
|
return nullptr;
|
|
|
|
if (PseudoElement* pseudoElement = beforeOrAfterPseudoElement(*this, pseudoElementSpecifier))
|
|
return pseudoElement->computedStyle();
|
|
|
|
auto* style = existingComputedStyle();
|
|
if (!style)
|
|
style = resolveComputedStyle();
|
|
|
|
if (pseudoElementSpecifier != PseudoId::None) {
|
|
if (auto* cachedPseudoStyle = style->getCachedPseudoStyle(pseudoElementSpecifier))
|
|
return cachedPseudoStyle;
|
|
return &resolvePseudoElementStyle(pseudoElementSpecifier);
|
|
}
|
|
|
|
return style;
|
|
}
|
|
|
|
bool Element::needsStyleInvalidation() const
|
|
{
|
|
if (!inRenderedDocument())
|
|
return false;
|
|
if (styleValidity() >= Style::Validity::SubtreeInvalid)
|
|
return false;
|
|
if (document().hasPendingFullStyleRebuild())
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
void Element::setChildIndex(unsigned index)
|
|
{
|
|
ElementRareData& rareData = ensureElementRareData();
|
|
rareData.setChildIndex(index);
|
|
}
|
|
|
|
bool Element::hasFlagsSetDuringStylingOfChildren() const
|
|
{
|
|
return childrenAffectedByFirstChildRules()
|
|
|| childrenAffectedByLastChildRules()
|
|
|| childrenAffectedByForwardPositionalRules()
|
|
|| descendantsAffectedByForwardPositionalRules()
|
|
|| childrenAffectedByBackwardPositionalRules()
|
|
|| descendantsAffectedByBackwardPositionalRules()
|
|
|| childrenAffectedByPropertyBasedBackwardPositionalRules();
|
|
}
|
|
|
|
unsigned Element::rareDataChildIndex() const
|
|
{
|
|
ASSERT(hasRareData());
|
|
return elementRareData()->childIndex();
|
|
}
|
|
|
|
AtomString Element::computeInheritedLanguage() const
|
|
{
|
|
// The language property is inherited, so we iterate over the parents to find the first language.
|
|
for (auto& element : lineageOfType<Element>(*this)) {
|
|
if (auto* elementData = element.elementData()) {
|
|
if (auto* attribute = elementData->findLanguageAttribute())
|
|
return attribute->value();
|
|
}
|
|
}
|
|
return document().contentLanguage();
|
|
}
|
|
|
|
Locale& Element::locale() const
|
|
{
|
|
return document().getCachedLocale(computeInheritedLanguage());
|
|
}
|
|
|
|
void Element::normalizeAttributes()
|
|
{
|
|
if (!hasAttributes())
|
|
return;
|
|
|
|
auto* attrNodeList = attrNodeListForElement(*this);
|
|
if (!attrNodeList)
|
|
return;
|
|
|
|
// Copy the Attr Vector because Node::normalize() can fire synchronous JS
|
|
// events (e.g. DOMSubtreeModified) and a JS listener could add / remove
|
|
// attributes while we are iterating.
|
|
auto copyOfAttrNodeList = *attrNodeList;
|
|
for (auto& attrNode : copyOfAttrNodeList)
|
|
attrNode->normalize();
|
|
}
|
|
|
|
PseudoElement& Element::ensurePseudoElement(PseudoId pseudoId)
|
|
{
|
|
if (pseudoId == PseudoId::Before) {
|
|
if (!beforePseudoElement())
|
|
ensureElementRareData().setBeforePseudoElement(PseudoElement::create(*this, pseudoId));
|
|
return *beforePseudoElement();
|
|
}
|
|
|
|
ASSERT(pseudoId == PseudoId::After);
|
|
if (!afterPseudoElement())
|
|
ensureElementRareData().setAfterPseudoElement(PseudoElement::create(*this, pseudoId));
|
|
return *afterPseudoElement();
|
|
}
|
|
|
|
PseudoElement* Element::beforePseudoElement() const
|
|
{
|
|
return hasRareData() ? elementRareData()->beforePseudoElement() : nullptr;
|
|
}
|
|
|
|
PseudoElement* Element::afterPseudoElement() const
|
|
{
|
|
return hasRareData() ? elementRareData()->afterPseudoElement() : nullptr;
|
|
}
|
|
|
|
static void disconnectPseudoElement(PseudoElement* pseudoElement)
|
|
{
|
|
if (!pseudoElement)
|
|
return;
|
|
ASSERT(!pseudoElement->renderer());
|
|
ASSERT(pseudoElement->hostElement());
|
|
pseudoElement->clearHostElement();
|
|
}
|
|
|
|
void Element::clearBeforePseudoElement()
|
|
{
|
|
if (!hasRareData())
|
|
return;
|
|
disconnectPseudoElement(elementRareData()->beforePseudoElement());
|
|
elementRareData()->setBeforePseudoElement(nullptr);
|
|
}
|
|
|
|
void Element::clearAfterPseudoElement()
|
|
{
|
|
if (!hasRareData())
|
|
return;
|
|
disconnectPseudoElement(elementRareData()->afterPseudoElement());
|
|
elementRareData()->setAfterPseudoElement(nullptr);
|
|
}
|
|
|
|
bool Element::matchesValidPseudoClass() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool Element::matchesInvalidPseudoClass() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool Element::matchesReadWritePseudoClass() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool Element::matchesIndeterminatePseudoClass() const
|
|
{
|
|
return shouldAppearIndeterminate();
|
|
}
|
|
|
|
bool Element::matchesDefaultPseudoClass() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
ExceptionOr<bool> Element::matches(const String& selector)
|
|
{
|
|
auto query = document().selectorQueryForString(selector);
|
|
if (query.hasException())
|
|
return query.releaseException();
|
|
return query.releaseReturnValue().matches(*this);
|
|
}
|
|
|
|
ExceptionOr<Element*> Element::closest(const String& selector)
|
|
{
|
|
auto query = document().selectorQueryForString(selector);
|
|
if (query.hasException())
|
|
return query.releaseException();
|
|
return query.releaseReturnValue().closest(*this);
|
|
}
|
|
|
|
bool Element::shouldAppearIndeterminate() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool Element::mayCauseRepaintInsideViewport(const IntRect* visibleRect) const
|
|
{
|
|
return renderer() && renderer()->mayCauseRepaintInsideViewport(visibleRect);
|
|
}
|
|
|
|
DOMTokenList& Element::classList()
|
|
{
|
|
ElementRareData& data = ensureElementRareData();
|
|
if (!data.classList())
|
|
data.setClassList(makeUnique<DOMTokenList>(*this, HTMLNames::classAttr));
|
|
return *data.classList();
|
|
}
|
|
|
|
SpaceSplitString Element::partNames() const
|
|
{
|
|
return hasRareData() ? elementRareData()->partNames() : SpaceSplitString();
|
|
}
|
|
|
|
DOMTokenList& Element::part()
|
|
{
|
|
auto& data = ensureElementRareData();
|
|
if (!data.partList())
|
|
data.setPartList(makeUnique<DOMTokenList>(*this, HTMLNames::partAttr));
|
|
return *data.partList();
|
|
}
|
|
|
|
DatasetDOMStringMap& Element::dataset()
|
|
{
|
|
ElementRareData& data = ensureElementRareData();
|
|
if (!data.dataset())
|
|
data.setDataset(makeUnique<DatasetDOMStringMap>(*this));
|
|
return *data.dataset();
|
|
}
|
|
|
|
URL Element::getURLAttribute(const QualifiedName& name) const
|
|
{
|
|
#if ASSERT_ENABLED
|
|
if (elementData()) {
|
|
if (const Attribute* attribute = findAttributeByName(name))
|
|
ASSERT(isURLAttribute(*attribute));
|
|
}
|
|
#endif
|
|
return document().completeURL(getAttribute(name));
|
|
}
|
|
|
|
URL Element::getNonEmptyURLAttribute(const QualifiedName& name) const
|
|
{
|
|
#if ASSERT_ENABLED
|
|
if (elementData()) {
|
|
if (const Attribute* attribute = findAttributeByName(name))
|
|
ASSERT(isURLAttribute(*attribute));
|
|
}
|
|
#endif
|
|
String value = stripLeadingAndTrailingHTMLSpaces(getAttribute(name));
|
|
if (value.isEmpty())
|
|
return URL();
|
|
return document().completeURL(value);
|
|
}
|
|
|
|
int Element::getIntegralAttribute(const QualifiedName& attributeName) const
|
|
{
|
|
return parseHTMLInteger(getAttribute(attributeName)).value_or(0);
|
|
}
|
|
|
|
void Element::setIntegralAttribute(const QualifiedName& attributeName, int value)
|
|
{
|
|
setAttribute(attributeName, AtomString::number(value));
|
|
}
|
|
|
|
unsigned Element::getUnsignedIntegralAttribute(const QualifiedName& attributeName) const
|
|
{
|
|
return parseHTMLNonNegativeInteger(getAttribute(attributeName)).value_or(0);
|
|
}
|
|
|
|
void Element::setUnsignedIntegralAttribute(const QualifiedName& attributeName, unsigned value)
|
|
{
|
|
setAttribute(attributeName, AtomString::number(limitToOnlyHTMLNonNegative(value)));
|
|
}
|
|
|
|
bool Element::childShouldCreateRenderer(const Node& child) const
|
|
{
|
|
// Only create renderers for SVG elements whose parents are SVG elements, or for proper <svg xmlns="svgNS"> subdocuments.
|
|
if (child.isSVGElement()) {
|
|
ASSERT(!isSVGElement());
|
|
const SVGElement& childElement = downcast<SVGElement>(child);
|
|
return is<SVGSVGElement>(childElement) && childElement.isValid();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#if ENABLE(FULLSCREEN_API)
|
|
|
|
static Element* parentCrossingFrameBoundaries(const Element* element)
|
|
{
|
|
ASSERT(element);
|
|
if (auto* parent = element->parentElementInComposedTree())
|
|
return parent;
|
|
return element->document().ownerElement();
|
|
}
|
|
|
|
void Element::webkitRequestFullscreen()
|
|
{
|
|
document().fullscreenManager().requestFullscreenForElement(this, FullscreenManager::EnforceIFrameAllowFullscreenRequirement);
|
|
}
|
|
|
|
void Element::setContainsFullScreenElement(bool flag)
|
|
{
|
|
if (flag)
|
|
setNodeFlag(NodeFlag::ContainsFullScreenElement);
|
|
else
|
|
clearNodeFlag(NodeFlag::ContainsFullScreenElement);
|
|
invalidateStyleAndLayerComposition();
|
|
}
|
|
|
|
void Element::setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(bool flag)
|
|
{
|
|
Element* element = this;
|
|
while ((element = parentCrossingFrameBoundaries(element)))
|
|
element->setContainsFullScreenElement(flag);
|
|
}
|
|
|
|
#endif
|
|
|
|
ExceptionOr<void> Element::setPointerCapture(int32_t pointerId)
|
|
{
|
|
if (document().page())
|
|
return document().page()->pointerCaptureController().setPointerCapture(this, pointerId);
|
|
return { };
|
|
}
|
|
|
|
ExceptionOr<void> Element::releasePointerCapture(int32_t pointerId)
|
|
{
|
|
if (document().page())
|
|
return document().page()->pointerCaptureController().releasePointerCapture(this, pointerId);
|
|
return { };
|
|
}
|
|
|
|
bool Element::hasPointerCapture(int32_t pointerId)
|
|
{
|
|
if (document().page())
|
|
return document().page()->pointerCaptureController().hasPointerCapture(this, pointerId);
|
|
return false;
|
|
}
|
|
|
|
#if ENABLE(POINTER_LOCK)
|
|
|
|
void Element::requestPointerLock()
|
|
{
|
|
if (document().page())
|
|
document().page()->pointerLockController().requestPointerLock(this);
|
|
}
|
|
|
|
#endif
|
|
|
|
#if ENABLE(INTERSECTION_OBSERVER)
|
|
|
|
void Element::disconnectFromIntersectionObservers()
|
|
{
|
|
auto* observerData = intersectionObserverDataIfExists();
|
|
if (!observerData)
|
|
return;
|
|
|
|
for (const auto& registration : observerData->registrations) {
|
|
if (registration.observer)
|
|
registration.observer->targetDestroyed(*this);
|
|
}
|
|
observerData->registrations.clear();
|
|
|
|
for (const auto& observer : observerData->observers) {
|
|
if (observer)
|
|
observer->rootDestroyed();
|
|
}
|
|
observerData->observers.clear();
|
|
}
|
|
|
|
IntersectionObserverData& Element::ensureIntersectionObserverData()
|
|
{
|
|
auto& rareData = ensureElementRareData();
|
|
if (!rareData.intersectionObserverData())
|
|
rareData.setIntersectionObserverData(makeUnique<IntersectionObserverData>());
|
|
return *rareData.intersectionObserverData();
|
|
}
|
|
|
|
IntersectionObserverData* Element::intersectionObserverDataIfExists()
|
|
{
|
|
return hasRareData() ? elementRareData()->intersectionObserverData() : nullptr;
|
|
}
|
|
|
|
#endif
|
|
|
|
ElementAnimationRareData* Element::animationRareData(PseudoId pseudoId) const
|
|
{
|
|
return hasRareData() ? elementRareData()->animationRareData(pseudoId) : nullptr;
|
|
}
|
|
|
|
ElementAnimationRareData& Element::ensureAnimationRareData(PseudoId pseudoId)
|
|
{
|
|
return ensureElementRareData().ensureAnimationRareData(pseudoId);
|
|
}
|
|
|
|
KeyframeEffectStack* Element::keyframeEffectStack(PseudoId pseudoId) const
|
|
{
|
|
if (auto* animationData = animationRareData(pseudoId))
|
|
return animationData->keyframeEffectStack();
|
|
return nullptr;
|
|
}
|
|
|
|
KeyframeEffectStack& Element::ensureKeyframeEffectStack(PseudoId pseudoId)
|
|
{
|
|
return ensureAnimationRareData(pseudoId).ensureKeyframeEffectStack();
|
|
}
|
|
|
|
bool Element::hasKeyframeEffects(PseudoId pseudoId) const
|
|
{
|
|
if (auto* animationData = animationRareData(pseudoId)) {
|
|
if (auto* keyframeEffectStack = animationData->keyframeEffectStack())
|
|
return keyframeEffectStack->hasEffects();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
const AnimationCollection* Element::animations(PseudoId pseudoId) const
|
|
{
|
|
if (auto* animationData = animationRareData(pseudoId))
|
|
return &animationData->animations();
|
|
return nullptr;
|
|
}
|
|
|
|
bool Element::hasCompletedTransitionForProperty(PseudoId pseudoId, CSSPropertyID property) const
|
|
{
|
|
if (auto* animationData = animationRareData(pseudoId))
|
|
return animationData->completedTransitionsByProperty().contains(property);
|
|
return false;
|
|
}
|
|
|
|
bool Element::hasRunningTransitionForProperty(PseudoId pseudoId, CSSPropertyID property) const
|
|
{
|
|
if (auto* animationData = animationRareData(pseudoId))
|
|
return animationData->runningTransitionsByProperty().contains(property);
|
|
return false;
|
|
}
|
|
|
|
bool Element::hasRunningTransitions(PseudoId pseudoId) const
|
|
{
|
|
if (auto* animationData = animationRareData(pseudoId))
|
|
return !animationData->runningTransitionsByProperty().isEmpty();
|
|
return false;
|
|
}
|
|
|
|
AnimationCollection& Element::ensureAnimations(PseudoId pseudoId)
|
|
{
|
|
return ensureAnimationRareData(pseudoId).animations();
|
|
}
|
|
|
|
CSSAnimationCollection& Element::animationsCreatedByMarkup(PseudoId pseudoId)
|
|
{
|
|
return ensureAnimationRareData(pseudoId).animationsCreatedByMarkup();
|
|
}
|
|
|
|
void Element::setAnimationsCreatedByMarkup(PseudoId pseudoId, CSSAnimationCollection&& animations)
|
|
{
|
|
ensureAnimationRareData(pseudoId).setAnimationsCreatedByMarkup(WTFMove(animations));
|
|
}
|
|
|
|
PropertyToTransitionMap& Element::ensureCompletedTransitionsByProperty(PseudoId pseudoId)
|
|
{
|
|
return ensureAnimationRareData(pseudoId).completedTransitionsByProperty();
|
|
}
|
|
|
|
PropertyToTransitionMap& Element::ensureRunningTransitionsByProperty(PseudoId pseudoId)
|
|
{
|
|
return ensureAnimationRareData(pseudoId).runningTransitionsByProperty();
|
|
}
|
|
|
|
const RenderStyle* Element::lastStyleChangeEventStyle(PseudoId pseudoId) const
|
|
{
|
|
if (auto* animationData = animationRareData(pseudoId))
|
|
return animationData->lastStyleChangeEventStyle();
|
|
return nullptr;
|
|
}
|
|
|
|
void Element::setLastStyleChangeEventStyle(PseudoId pseudoId, std::unique_ptr<const RenderStyle>&& style)
|
|
{
|
|
if (auto* animationData = animationRareData(pseudoId))
|
|
animationData->setLastStyleChangeEventStyle(WTFMove(style));
|
|
else if (style)
|
|
ensureAnimationRareData(pseudoId).setLastStyleChangeEventStyle(WTFMove(style));
|
|
}
|
|
|
|
#if ENABLE(RESIZE_OBSERVER)
|
|
|
|
void Element::disconnectFromResizeObservers()
|
|
{
|
|
auto* observerData = resizeObserverData();
|
|
if (!observerData)
|
|
return;
|
|
|
|
for (const auto& observer : observerData->observers)
|
|
observer->targetDestroyed(*this);
|
|
observerData->observers.clear();
|
|
}
|
|
|
|
ResizeObserverData& Element::ensureResizeObserverData()
|
|
{
|
|
auto& rareData = ensureElementRareData();
|
|
if (!rareData.resizeObserverData())
|
|
rareData.setResizeObserverData(makeUnique<ResizeObserverData>());
|
|
return *rareData.resizeObserverData();
|
|
}
|
|
|
|
ResizeObserverData* Element::resizeObserverData()
|
|
{
|
|
return hasRareData() ? elementRareData()->resizeObserverData() : nullptr;
|
|
}
|
|
|
|
#endif
|
|
|
|
bool Element::isSpellCheckingEnabled() const
|
|
{
|
|
for (auto* ancestor = this; ancestor; ancestor = ancestor->parentOrShadowHostElement()) {
|
|
auto& value = ancestor->attributeWithoutSynchronization(HTMLNames::spellcheckAttr);
|
|
if (value.isNull())
|
|
continue;
|
|
if (value.isEmpty() || equalLettersIgnoringASCIICase(value, "true"))
|
|
return true;
|
|
if (equalLettersIgnoringASCIICase(value, "false"))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#if ASSERT_ENABLED
|
|
bool Element::fastAttributeLookupAllowed(const QualifiedName& name) const
|
|
{
|
|
if (name == HTMLNames::styleAttr)
|
|
return false;
|
|
|
|
if (isSVGElement())
|
|
return !downcast<SVGElement>(*this).isAnimatedPropertyAttribute(name);
|
|
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
#if DUMP_NODE_STATISTICS
|
|
bool Element::hasNamedNodeMap() const
|
|
{
|
|
return hasRareData() && elementRareData()->attributeMap();
|
|
}
|
|
#endif
|
|
|
|
inline void Element::updateName(const AtomString& oldName, const AtomString& newName)
|
|
{
|
|
if (!isInTreeScope())
|
|
return;
|
|
|
|
if (oldName == newName)
|
|
return;
|
|
|
|
updateNameForTreeScope(treeScope(), oldName, newName);
|
|
|
|
if (!isConnected())
|
|
return;
|
|
if (!is<HTMLDocument>(document()))
|
|
return;
|
|
updateNameForDocument(downcast<HTMLDocument>(document()), oldName, newName);
|
|
}
|
|
|
|
void Element::updateNameForTreeScope(TreeScope& scope, const AtomString& oldName, const AtomString& newName)
|
|
{
|
|
ASSERT(oldName != newName);
|
|
|
|
if (!oldName.isEmpty())
|
|
scope.removeElementByName(*oldName.impl(), *this);
|
|
if (!newName.isEmpty())
|
|
scope.addElementByName(*newName.impl(), *this);
|
|
}
|
|
|
|
void Element::updateNameForDocument(HTMLDocument& document, const AtomString& oldName, const AtomString& newName)
|
|
{
|
|
ASSERT(oldName != newName);
|
|
|
|
if (isInShadowTree())
|
|
return;
|
|
|
|
if (WindowNameCollection::elementMatchesIfNameAttributeMatch(*this)) {
|
|
const AtomString& id = WindowNameCollection::elementMatchesIfIdAttributeMatch(*this) ? getIdAttribute() : nullAtom();
|
|
if (!oldName.isEmpty() && oldName != id)
|
|
document.removeWindowNamedItem(*oldName.impl(), *this);
|
|
if (!newName.isEmpty() && newName != id)
|
|
document.addWindowNamedItem(*newName.impl(), *this);
|
|
}
|
|
|
|
if (DocumentNameCollection::elementMatchesIfNameAttributeMatch(*this)) {
|
|
const AtomString& id = DocumentNameCollection::elementMatchesIfIdAttributeMatch(*this) ? getIdAttribute() : nullAtom();
|
|
if (!oldName.isEmpty() && oldName != id)
|
|
document.removeDocumentNamedItem(*oldName.impl(), *this);
|
|
if (!newName.isEmpty() && newName != id)
|
|
document.addDocumentNamedItem(*newName.impl(), *this);
|
|
}
|
|
}
|
|
|
|
inline void Element::updateId(const AtomString& oldId, const AtomString& newId, NotifyObservers notifyObservers)
|
|
{
|
|
if (!isInTreeScope())
|
|
return;
|
|
|
|
if (oldId == newId)
|
|
return;
|
|
|
|
updateIdForTreeScope(treeScope(), oldId, newId, notifyObservers);
|
|
|
|
if (!isConnected())
|
|
return;
|
|
if (!is<HTMLDocument>(document()))
|
|
return;
|
|
updateIdForDocument(downcast<HTMLDocument>(document()), oldId, newId, UpdateHTMLDocumentNamedItemMapsOnlyIfDiffersFromNameAttribute);
|
|
}
|
|
|
|
void Element::updateIdForTreeScope(TreeScope& scope, const AtomString& oldId, const AtomString& newId, NotifyObservers notifyObservers)
|
|
{
|
|
ASSERT(isInTreeScope());
|
|
ASSERT(oldId != newId);
|
|
|
|
if (!oldId.isEmpty())
|
|
scope.removeElementById(*oldId.impl(), *this, notifyObservers == NotifyObservers::Yes);
|
|
if (!newId.isEmpty())
|
|
scope.addElementById(*newId.impl(), *this, notifyObservers == NotifyObservers::Yes);
|
|
}
|
|
|
|
void Element::updateIdForDocument(HTMLDocument& document, const AtomString& oldId, const AtomString& newId, HTMLDocumentNamedItemMapsUpdatingCondition condition)
|
|
{
|
|
ASSERT(isConnected());
|
|
ASSERT(oldId != newId);
|
|
|
|
if (isInShadowTree())
|
|
return;
|
|
|
|
if (WindowNameCollection::elementMatchesIfIdAttributeMatch(*this)) {
|
|
const AtomString& name = condition == UpdateHTMLDocumentNamedItemMapsOnlyIfDiffersFromNameAttribute && WindowNameCollection::elementMatchesIfNameAttributeMatch(*this) ? getNameAttribute() : nullAtom();
|
|
if (!oldId.isEmpty() && oldId != name)
|
|
document.removeWindowNamedItem(*oldId.impl(), *this);
|
|
if (!newId.isEmpty() && newId != name)
|
|
document.addWindowNamedItem(*newId.impl(), *this);
|
|
}
|
|
|
|
if (DocumentNameCollection::elementMatchesIfIdAttributeMatch(*this)) {
|
|
const AtomString& name = condition == UpdateHTMLDocumentNamedItemMapsOnlyIfDiffersFromNameAttribute && DocumentNameCollection::elementMatchesIfNameAttributeMatch(*this) ? getNameAttribute() : nullAtom();
|
|
if (!oldId.isEmpty() && oldId != name)
|
|
document.removeDocumentNamedItem(*oldId.impl(), *this);
|
|
if (!newId.isEmpty() && newId != name)
|
|
document.addDocumentNamedItem(*newId.impl(), *this);
|
|
}
|
|
}
|
|
|
|
void Element::updateLabel(TreeScope& scope, const AtomString& oldForAttributeValue, const AtomString& newForAttributeValue)
|
|
{
|
|
ASSERT(hasTagName(labelTag));
|
|
|
|
if (!isConnected())
|
|
return;
|
|
|
|
if (oldForAttributeValue == newForAttributeValue)
|
|
return;
|
|
|
|
if (!oldForAttributeValue.isEmpty())
|
|
scope.removeLabel(*oldForAttributeValue.impl(), downcast<HTMLLabelElement>(*this));
|
|
if (!newForAttributeValue.isEmpty())
|
|
scope.addLabel(*newForAttributeValue.impl(), downcast<HTMLLabelElement>(*this));
|
|
}
|
|
|
|
void Element::willModifyAttribute(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue)
|
|
{
|
|
if (name == HTMLNames::idAttr)
|
|
updateId(oldValue, newValue, NotifyObservers::No); // Will notify observers after the attribute is actually changed.
|
|
else if (name == HTMLNames::nameAttr)
|
|
updateName(oldValue, newValue);
|
|
else if (name == HTMLNames::forAttr && hasTagName(labelTag)) {
|
|
if (treeScope().shouldCacheLabelsByForAttribute())
|
|
updateLabel(treeScope(), oldValue, newValue);
|
|
}
|
|
|
|
if (auto recipients = MutationObserverInterestGroup::createForAttributesMutation(*this, name))
|
|
recipients->enqueueMutationRecord(MutationRecord::createAttributes(*this, name, oldValue));
|
|
|
|
InspectorInstrumentation::willModifyDOMAttr(document(), *this, oldValue, newValue);
|
|
}
|
|
|
|
void Element::didAddAttribute(const QualifiedName& name, const AtomString& value)
|
|
{
|
|
attributeChanged(name, nullAtom(), value);
|
|
InspectorInstrumentation::didModifyDOMAttr(document(), *this, name.toString(), value);
|
|
dispatchSubtreeModifiedEvent();
|
|
}
|
|
|
|
void Element::didModifyAttribute(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue)
|
|
{
|
|
attributeChanged(name, oldValue, newValue);
|
|
InspectorInstrumentation::didModifyDOMAttr(document(), *this, name.toString(), newValue);
|
|
// Do not dispatch a DOMSubtreeModified event here; see bug 81141.
|
|
}
|
|
|
|
void Element::didRemoveAttribute(const QualifiedName& name, const AtomString& oldValue)
|
|
{
|
|
attributeChanged(name, oldValue, nullAtom());
|
|
InspectorInstrumentation::didRemoveDOMAttr(document(), *this, name.toString());
|
|
dispatchSubtreeModifiedEvent();
|
|
}
|
|
|
|
IntPoint Element::savedLayerScrollPosition() const
|
|
{
|
|
return hasRareData() ? elementRareData()->savedLayerScrollPosition() : IntPoint();
|
|
}
|
|
|
|
void Element::setSavedLayerScrollPosition(const IntPoint& position)
|
|
{
|
|
if (position.isZero() && !hasRareData())
|
|
return;
|
|
ensureElementRareData().setSavedLayerScrollPosition(position);
|
|
}
|
|
|
|
RefPtr<Attr> Element::attrIfExists(const AtomString& localName, bool shouldIgnoreAttributeCase)
|
|
{
|
|
if (auto* attrNodeList = attrNodeListForElement(*this))
|
|
return findAttrNodeInList(*attrNodeList, localName, shouldIgnoreAttributeCase);
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<Attr> Element::attrIfExists(const QualifiedName& name)
|
|
{
|
|
if (auto* attrNodeList = attrNodeListForElement(*this))
|
|
return findAttrNodeInList(*attrNodeList, name);
|
|
return nullptr;
|
|
}
|
|
|
|
Ref<Attr> Element::ensureAttr(const QualifiedName& name)
|
|
{
|
|
auto& attrNodeList = ensureAttrNodeListForElement(*this);
|
|
RefPtr<Attr> attrNode = findAttrNodeInList(attrNodeList, name);
|
|
if (!attrNode) {
|
|
attrNode = Attr::create(*this, name);
|
|
attrNode->setTreeScopeRecursively(treeScope());
|
|
attrNodeList.append(attrNode);
|
|
}
|
|
return attrNode.releaseNonNull();
|
|
}
|
|
|
|
void Element::detachAttrNodeFromElementWithValue(Attr* attrNode, const AtomString& value)
|
|
{
|
|
ASSERT(hasSyntheticAttrChildNodes());
|
|
attrNode->detachFromElementWithValue(value);
|
|
|
|
auto& attrNodeList = *attrNodeListForElement(*this);
|
|
bool found = attrNodeList.removeFirstMatching([attrNode](auto& attribute) {
|
|
return attribute->qualifiedName() == attrNode->qualifiedName();
|
|
});
|
|
ASSERT_UNUSED(found, found);
|
|
if (attrNodeList.isEmpty())
|
|
removeAttrNodeListForElement(*this);
|
|
}
|
|
|
|
void Element::detachAllAttrNodesFromElement()
|
|
{
|
|
auto* attrNodeList = attrNodeListForElement(*this);
|
|
ASSERT(attrNodeList);
|
|
|
|
for (const Attribute& attribute : attributesIterator()) {
|
|
if (RefPtr<Attr> attrNode = findAttrNodeInList(*attrNodeList, attribute.name()))
|
|
attrNode->detachFromElementWithValue(attribute.value());
|
|
}
|
|
|
|
removeAttrNodeListForElement(*this);
|
|
}
|
|
|
|
void Element::resetComputedStyle()
|
|
{
|
|
if (!hasRareData() || !elementRareData()->computedStyle())
|
|
return;
|
|
|
|
auto reset = [](Element& element) {
|
|
if (element.hasCustomStyleResolveCallbacks())
|
|
element.willResetComputedStyle();
|
|
element.elementRareData()->resetComputedStyle();
|
|
};
|
|
reset(*this);
|
|
for (auto& child : descendantsOfType<Element>(*this)) {
|
|
if (!child.hasRareData() || !child.elementRareData()->computedStyle() || child.hasDisplayContents())
|
|
continue;
|
|
reset(child);
|
|
}
|
|
}
|
|
|
|
void Element::resetStyleRelations()
|
|
{
|
|
clearStyleFlags(NodeStyleFlag::StyleAffectedByEmpty);
|
|
if (!hasRareData())
|
|
return;
|
|
elementRareData()->setChildIndex(0);
|
|
}
|
|
|
|
void Element::resetChildStyleRelations()
|
|
{
|
|
clearStyleFlags({
|
|
NodeStyleFlag::ChildrenAffectedByFirstChildRules,
|
|
NodeStyleFlag::ChildrenAffectedByLastChildRules,
|
|
NodeStyleFlag::ChildrenAffectedByForwardPositionalRules,
|
|
NodeStyleFlag::ChildrenAffectedByBackwardPositionalRules,
|
|
NodeStyleFlag::ChildrenAffectedByPropertyBasedBackwardPositionalRules
|
|
});
|
|
}
|
|
|
|
void Element::resetAllDescendantStyleRelations()
|
|
{
|
|
resetChildStyleRelations();
|
|
|
|
clearStyleFlags({
|
|
NodeStyleFlag::DescendantsAffectedByForwardPositionalRules,
|
|
NodeStyleFlag::DescendantsAffectedByBackwardPositionalRules
|
|
});
|
|
}
|
|
|
|
void Element::clearHoverAndActiveStatusBeforeDetachingRenderer()
|
|
{
|
|
if (!isUserActionElement())
|
|
return;
|
|
if (hovered())
|
|
document().hoveredElementDidDetach(*this);
|
|
if (isInActiveChain())
|
|
document().elementInActiveChainDidDetach(*this);
|
|
document().userActionElements().clearActiveAndHovered(*this);
|
|
}
|
|
|
|
void Element::willRecalcStyle(Style::Change)
|
|
{
|
|
ASSERT(hasCustomStyleResolveCallbacks());
|
|
}
|
|
|
|
void Element::didRecalcStyle(Style::Change)
|
|
{
|
|
ASSERT(hasCustomStyleResolveCallbacks());
|
|
}
|
|
|
|
void Element::willResetComputedStyle()
|
|
{
|
|
ASSERT(hasCustomStyleResolveCallbacks());
|
|
}
|
|
|
|
void Element::willAttachRenderers()
|
|
{
|
|
ASSERT(hasCustomStyleResolveCallbacks());
|
|
}
|
|
|
|
void Element::didAttachRenderers()
|
|
{
|
|
ASSERT(hasCustomStyleResolveCallbacks());
|
|
}
|
|
|
|
void Element::willDetachRenderers()
|
|
{
|
|
ASSERT(hasCustomStyleResolveCallbacks());
|
|
}
|
|
|
|
void Element::didDetachRenderers()
|
|
{
|
|
ASSERT(hasCustomStyleResolveCallbacks());
|
|
}
|
|
|
|
std::optional<Style::ElementStyle> Element::resolveCustomStyle(const RenderStyle&, const RenderStyle*)
|
|
{
|
|
ASSERT(hasCustomStyleResolveCallbacks());
|
|
return std::nullopt;
|
|
}
|
|
|
|
void Element::cloneAttributesFromElement(const Element& other)
|
|
{
|
|
if (hasSyntheticAttrChildNodes())
|
|
detachAllAttrNodesFromElement();
|
|
|
|
other.synchronizeAllAttributes();
|
|
if (!other.m_elementData) {
|
|
m_elementData = nullptr;
|
|
return;
|
|
}
|
|
|
|
// We can't update window and document's named item maps since the presence of image and object elements depend on other attributes and children.
|
|
// Fortunately, those named item maps are only updated when this element is in the document, which should never be the case.
|
|
ASSERT(!isConnected());
|
|
|
|
const AtomString& oldID = getIdAttribute();
|
|
const AtomString& newID = other.getIdAttribute();
|
|
|
|
if (!oldID.isNull() || !newID.isNull())
|
|
updateId(oldID, newID, NotifyObservers::No); // Will notify observers after the attribute is actually changed.
|
|
|
|
const AtomString& oldName = getNameAttribute();
|
|
const AtomString& newName = other.getNameAttribute();
|
|
|
|
if (!oldName.isNull() || !newName.isNull())
|
|
updateName(oldName, newName);
|
|
|
|
// If 'other' has a mutable ElementData, convert it to an immutable one so we can share it between both elements.
|
|
// We can only do this if there is no CSSOM wrapper for other's inline style, and there are no presentation attributes.
|
|
if (is<UniqueElementData>(*other.m_elementData)
|
|
&& !other.m_elementData->presentationalHintStyle()
|
|
&& (!other.m_elementData->inlineStyle() || !other.m_elementData->inlineStyle()->hasCSSOMWrapper()))
|
|
const_cast<Element&>(other).m_elementData = downcast<UniqueElementData>(*other.m_elementData).makeShareableCopy();
|
|
|
|
if (!other.m_elementData->isUnique())
|
|
m_elementData = other.m_elementData;
|
|
else
|
|
m_elementData = other.m_elementData->makeUniqueCopy();
|
|
|
|
for (const Attribute& attribute : attributesIterator())
|
|
attributeChanged(attribute.name(), nullAtom(), attribute.value(), ModifiedByCloning);
|
|
}
|
|
|
|
void Element::cloneDataFromElement(const Element& other)
|
|
{
|
|
cloneAttributesFromElement(other);
|
|
copyNonAttributePropertiesFromElement(other);
|
|
}
|
|
|
|
void Element::createUniqueElementData()
|
|
{
|
|
if (!m_elementData)
|
|
m_elementData = UniqueElementData::create();
|
|
else
|
|
m_elementData = downcast<ShareableElementData>(*m_elementData).makeUniqueCopy();
|
|
}
|
|
|
|
bool Element::canContainRangeEndPoint() const
|
|
{
|
|
return !equalLettersIgnoringASCIICase(attributeWithoutSynchronization(roleAttr), "img");
|
|
}
|
|
|
|
String Element::completeURLsInAttributeValue(const URL& base, const Attribute& attribute) const
|
|
{
|
|
return URL(base, attribute.value()).string();
|
|
}
|
|
|
|
ExceptionOr<Node*> Element::insertAdjacent(const String& where, Ref<Node>&& newChild)
|
|
{
|
|
// In Internet Explorer if the element has no parent and where is "beforeBegin" or "afterEnd",
|
|
// a document fragment is created and the elements appended in the correct order. This document
|
|
// fragment isn't returned anywhere.
|
|
//
|
|
// This is impossible for us to implement as the DOM tree does not allow for such structures,
|
|
// Opera also appears to disallow such usage.
|
|
|
|
if (equalLettersIgnoringASCIICase(where, "beforebegin")) {
|
|
auto* parent = this->parentNode();
|
|
if (!parent)
|
|
return nullptr;
|
|
auto result = parent->insertBefore(newChild, this);
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
return newChild.ptr();
|
|
}
|
|
|
|
if (equalLettersIgnoringASCIICase(where, "afterbegin")) {
|
|
auto result = insertBefore(newChild, firstChild());
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
return newChild.ptr();
|
|
}
|
|
|
|
if (equalLettersIgnoringASCIICase(where, "beforeend")) {
|
|
auto result = appendChild(newChild);
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
return newChild.ptr();
|
|
}
|
|
|
|
if (equalLettersIgnoringASCIICase(where, "afterend")) {
|
|
auto* parent = this->parentNode();
|
|
if (!parent)
|
|
return nullptr;
|
|
auto result = parent->insertBefore(newChild, nextSibling());
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
return newChild.ptr();
|
|
}
|
|
|
|
return Exception { SyntaxError };
|
|
}
|
|
|
|
ExceptionOr<Element*> Element::insertAdjacentElement(const String& where, Element& newChild)
|
|
{
|
|
auto result = insertAdjacent(where, newChild);
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
return downcast<Element>(result.releaseReturnValue());
|
|
}
|
|
|
|
// Step 1 of https://w3c.github.io/DOM-Parsing/#dom-element-insertadjacenthtml.
|
|
static ExceptionOr<ContainerNode&> contextNodeForInsertion(const String& where, Element& element)
|
|
{
|
|
if (equalLettersIgnoringASCIICase(where, "beforebegin") || equalLettersIgnoringASCIICase(where, "afterend")) {
|
|
auto* parent = element.parentNode();
|
|
if (!parent || is<Document>(*parent))
|
|
return Exception { NoModificationAllowedError };
|
|
return *parent;
|
|
}
|
|
if (equalLettersIgnoringASCIICase(where, "afterbegin") || equalLettersIgnoringASCIICase(where, "beforeend"))
|
|
return element;
|
|
return Exception { SyntaxError };
|
|
}
|
|
|
|
// Step 2 of https://w3c.github.io/DOM-Parsing/#dom-element-insertadjacenthtml.
|
|
static ExceptionOr<Ref<Element>> contextElementForInsertion(const String& where, Element& element)
|
|
{
|
|
auto contextNodeResult = contextNodeForInsertion(where, element);
|
|
if (contextNodeResult.hasException())
|
|
return contextNodeResult.releaseException();
|
|
auto& contextNode = contextNodeResult.releaseReturnValue();
|
|
if (!is<Element>(contextNode) || (contextNode.document().isHTMLDocument() && is<HTMLHtmlElement>(contextNode)))
|
|
return Ref<Element> { HTMLBodyElement::create(contextNode.document()) };
|
|
return Ref<Element> { downcast<Element>(contextNode) };
|
|
}
|
|
|
|
// https://w3c.github.io/DOM-Parsing/#dom-element-insertadjacenthtml
|
|
ExceptionOr<void> Element::insertAdjacentHTML(const String& where, const String& markup, NodeVector* addedNodes)
|
|
{
|
|
// Steps 1 and 2.
|
|
auto contextElement = contextElementForInsertion(where, *this);
|
|
if (contextElement.hasException())
|
|
return contextElement.releaseException();
|
|
// Step 3.
|
|
auto fragment = createFragmentForInnerOuterHTML(contextElement.releaseReturnValue(), markup, AllowScriptingContent);
|
|
if (fragment.hasException())
|
|
return fragment.releaseException();
|
|
|
|
if (UNLIKELY(addedNodes)) {
|
|
// Must be called before insertAdjacent, as otherwise the children of fragment will be moved
|
|
// to their new parent and will be harder to keep track of.
|
|
*addedNodes = collectChildNodes(fragment.returnValue());
|
|
}
|
|
|
|
// Step 4.
|
|
auto result = insertAdjacent(where, fragment.releaseReturnValue());
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
return { };
|
|
}
|
|
|
|
ExceptionOr<void> Element::insertAdjacentHTML(const String& where, const String& markup)
|
|
{
|
|
return insertAdjacentHTML(where, markup, nullptr);
|
|
}
|
|
|
|
ExceptionOr<void> Element::insertAdjacentText(const String& where, const String& text)
|
|
{
|
|
auto result = insertAdjacent(where, document().createTextNode(text));
|
|
if (result.hasException())
|
|
return result.releaseException();
|
|
return { };
|
|
}
|
|
|
|
Element* Element::findAnchorElementForLink(String& outAnchorName)
|
|
{
|
|
if (!isLink())
|
|
return nullptr;
|
|
|
|
const AtomString& href = attributeWithoutSynchronization(HTMLNames::hrefAttr);
|
|
if (href.isNull())
|
|
return nullptr;
|
|
|
|
Document& document = this->document();
|
|
URL url = document.completeURL(href);
|
|
if (!url.isValid())
|
|
return nullptr;
|
|
|
|
if (url.hasFragmentIdentifier() && equalIgnoringFragmentIdentifier(url, document.baseURL())) {
|
|
outAnchorName = url.fragmentIdentifier().toString();
|
|
return document.findAnchor(outAnchorName);
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
ExceptionOr<Ref<WebAnimation>> Element::animate(JSC::JSGlobalObject& lexicalGlobalObject, JSC::Strong<JSC::JSObject>&& keyframes, std::optional<Variant<double, KeyframeAnimationOptions>>&& options)
|
|
{
|
|
String id = "";
|
|
std::optional<Variant<double, KeyframeEffectOptions>> keyframeEffectOptions;
|
|
if (options) {
|
|
auto optionsValue = options.value();
|
|
Variant<double, KeyframeEffectOptions> keyframeEffectOptionsVariant;
|
|
if (WTF::holds_alternative<double>(optionsValue))
|
|
keyframeEffectOptionsVariant = WTF::get<double>(optionsValue);
|
|
else {
|
|
auto keyframeEffectOptions = WTF::get<KeyframeAnimationOptions>(optionsValue);
|
|
id = keyframeEffectOptions.id;
|
|
keyframeEffectOptionsVariant = WTFMove(keyframeEffectOptions);
|
|
}
|
|
keyframeEffectOptions = keyframeEffectOptionsVariant;
|
|
}
|
|
|
|
auto keyframeEffectResult = KeyframeEffect::create(lexicalGlobalObject, this, WTFMove(keyframes), WTFMove(keyframeEffectOptions));
|
|
if (keyframeEffectResult.hasException())
|
|
return keyframeEffectResult.releaseException();
|
|
|
|
auto animation = WebAnimation::create(document(), &keyframeEffectResult.returnValue().get());
|
|
animation->setId(id);
|
|
|
|
auto animationPlayResult = animation->play();
|
|
if (animationPlayResult.hasException())
|
|
return animationPlayResult.releaseException();
|
|
|
|
return animation;
|
|
}
|
|
|
|
Vector<RefPtr<WebAnimation>> Element::getAnimations(std::optional<GetAnimationsOptions> options)
|
|
{
|
|
// If we are to return animations in the subtree, we can get all of the document's animations and filter
|
|
// animations targeting that are not registered on this element, one of its pseudo elements or a child's
|
|
// pseudo element.
|
|
if (options && options->subtree) {
|
|
return document().matchingAnimations([&] (Element& target) -> bool {
|
|
if (is<PseudoElement>(target))
|
|
return contains(downcast<PseudoElement>(target).hostElement());
|
|
return contains(&target);
|
|
});
|
|
}
|
|
|
|
// For the list of animations to be current, we need to account for any pending CSS changes,
|
|
// such as updates to CSS Animations and CSS Transitions.
|
|
// FIXME: We might be able to use ComputedStyleExtractor which is more optimized.
|
|
document().updateStyleIfNeeded();
|
|
|
|
Vector<RefPtr<WebAnimation>> animations;
|
|
if (auto* effectStack = keyframeEffectStack(PseudoId::None)) {
|
|
for (auto& effect : effectStack->sortedEffects()) {
|
|
if (effect->animation()->isRelevant())
|
|
animations.append(effect->animation());
|
|
}
|
|
}
|
|
return animations;
|
|
}
|
|
|
|
ElementIdentifier Element::createElementIdentifier()
|
|
{
|
|
ASSERT(!hasNodeFlag(NodeFlag::HasElementIdentifier));
|
|
setNodeFlag(NodeFlag::HasElementIdentifier);
|
|
return ElementIdentifier::generate();
|
|
}
|
|
|
|
#if ENABLE(CSS_TYPED_OM)
|
|
|
|
StylePropertyMap* Element::attributeStyleMap()
|
|
{
|
|
if (!hasRareData())
|
|
return nullptr;
|
|
return elementRareData()->attributeStyleMap();
|
|
}
|
|
|
|
void Element::setAttributeStyleMap(Ref<StylePropertyMap>&& map)
|
|
{
|
|
ensureElementRareData().setAttributeStyleMap(WTFMove(map));
|
|
}
|
|
|
|
#endif
|
|
|
|
} // namespace WebCore
|