173 lines
5.5 KiB
C++
173 lines
5.5 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 Dirk Mueller (mueller@kde.org)
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* Copyright (C) 2003, 2010, 2013 Apple Inc. All rights reserved.
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* (C) 2007 Rob Buis (buis@kde.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 "HTMLStyleElement.h"
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#include "CachedResource.h"
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#include "Document.h"
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#include "Event.h"
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#include "EventNames.h"
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#include "EventSender.h"
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#include "HTMLNames.h"
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#include "MediaList.h"
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#include "MediaQueryParser.h"
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#include "ScriptableDocumentParser.h"
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#include "ShadowRoot.h"
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#include "StyleScope.h"
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#include "StyleSheetContents.h"
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#include <wtf/IsoMallocInlines.h>
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#include <wtf/NeverDestroyed.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLStyleElement);
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using namespace HTMLNames;
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static StyleEventSender& styleLoadEventSender()
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{
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static NeverDestroyed<StyleEventSender> sharedLoadEventSender(eventNames().loadEvent);
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return sharedLoadEventSender;
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}
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inline HTMLStyleElement::HTMLStyleElement(const QualifiedName& tagName, Document& document, bool createdByParser)
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: HTMLElement(tagName, document)
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, m_styleSheetOwner(document, createdByParser)
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{
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ASSERT(hasTagName(styleTag));
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}
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HTMLStyleElement::~HTMLStyleElement()
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{
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m_styleSheetOwner.clearDocumentData(*this);
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styleLoadEventSender().cancelEvent(*this);
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}
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Ref<HTMLStyleElement> HTMLStyleElement::create(const QualifiedName& tagName, Document& document, bool createdByParser)
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{
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return adoptRef(*new HTMLStyleElement(tagName, document, createdByParser));
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}
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Ref<HTMLStyleElement> HTMLStyleElement::create(Document& document)
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{
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return adoptRef(*new HTMLStyleElement(styleTag, document, false));
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}
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void HTMLStyleElement::parseAttribute(const QualifiedName& name, const AtomString& value)
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{
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if (name == titleAttr && sheet() && !isInShadowTree())
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sheet()->setTitle(value);
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else if (name == mediaAttr) {
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m_styleSheetOwner.setMedia(value);
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if (sheet()) {
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sheet()->setMediaQueries(MediaQuerySet::create(value, MediaQueryParserContext(document())));
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if (auto* scope = m_styleSheetOwner.styleScope())
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scope->didChangeStyleSheetContents();
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} else
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m_styleSheetOwner.childrenChanged(*this);
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} else if (name == typeAttr) {
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m_styleSheetOwner.setContentType(value);
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m_styleSheetOwner.childrenChanged(*this);
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if (auto* scope = m_styleSheetOwner.styleScope())
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scope->didChangeStyleSheetContents();
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} else
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HTMLElement::parseAttribute(name, value);
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}
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void HTMLStyleElement::finishParsingChildren()
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{
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m_styleSheetOwner.finishParsingChildren(*this);
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HTMLElement::finishParsingChildren();
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}
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Node::InsertedIntoAncestorResult HTMLStyleElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
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{
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auto result = HTMLElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
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if (insertionType.connectedToDocument)
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m_styleSheetOwner.insertedIntoDocument(*this);
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return result;
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}
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void HTMLStyleElement::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree)
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{
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HTMLElement::removedFromAncestor(removalType, oldParentOfRemovedTree);
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if (removalType.disconnectedFromDocument)
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m_styleSheetOwner.removedFromDocument(*this);
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}
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void HTMLStyleElement::childrenChanged(const ChildChange& change)
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{
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HTMLElement::childrenChanged(change);
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m_styleSheetOwner.childrenChanged(*this);
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}
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void HTMLStyleElement::dispatchPendingLoadEvents(Page* page)
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{
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styleLoadEventSender().dispatchPendingEvents(page);
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}
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void HTMLStyleElement::dispatchPendingEvent(StyleEventSender* eventSender)
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{
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ASSERT_UNUSED(eventSender, eventSender == &styleLoadEventSender());
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if (m_loadedSheet)
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dispatchEvent(Event::create(eventNames().loadEvent, Event::CanBubble::No, Event::IsCancelable::No));
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else
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dispatchEvent(Event::create(eventNames().errorEvent, Event::CanBubble::No, Event::IsCancelable::No));
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}
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void HTMLStyleElement::notifyLoadedSheetAndAllCriticalSubresources(bool errorOccurred)
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{
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m_loadedSheet = !errorOccurred;
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styleLoadEventSender().dispatchEventSoon(*this);
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}
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void HTMLStyleElement::addSubresourceAttributeURLs(ListHashSet<URL>& urls) const
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{
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HTMLElement::addSubresourceAttributeURLs(urls);
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if (auto styleSheet = makeRefPtr(this->sheet())) {
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styleSheet->contents().traverseSubresources([&] (auto& resource) {
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urls.add(resource.url());
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return false;
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});
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}
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}
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bool HTMLStyleElement::disabled() const
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{
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if (!sheet())
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return false;
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return sheet()->disabled();
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}
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void HTMLStyleElement::setDisabled(bool setDisabled)
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{
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if (CSSStyleSheet* styleSheet = sheet())
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styleSheet->setDisabled(setDisabled);
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}
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}
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