| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * (C) 2001 Dirk Mueller (mueller@kde.org) |
| * Copyright (C) 2003, 2010 Apple Inc. All rights reserved. |
| * (C) 2007 Rob Buis (buis@kde.org) |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "core/html/HTMLStyleElement.h" |
| |
| #include "core/HTMLNames.h" |
| #include "core/css/MediaList.h" |
| #include "core/dom/Document.h" |
| #include "core/dom/StyleEngine.h" |
| #include "core/dom/TaskRunnerHelper.h" |
| #include "core/dom/shadow/ShadowRoot.h" |
| #include "core/events/Event.h" |
| |
| namespace blink { |
| |
| using namespace HTMLNames; |
| |
| inline HTMLStyleElement::HTMLStyleElement(Document& document, |
| bool createdByParser) |
| : HTMLElement(styleTag, document), |
| StyleElement(&document, createdByParser), |
| m_firedLoad(false), |
| m_loadedSheet(false) {} |
| |
| HTMLStyleElement::~HTMLStyleElement() {} |
| |
| HTMLStyleElement* HTMLStyleElement::create(Document& document, |
| bool createdByParser) { |
| return new HTMLStyleElement(document, createdByParser); |
| } |
| |
| void HTMLStyleElement::parseAttribute(const QualifiedName& name, |
| const AtomicString& oldValue, |
| const AtomicString& value) { |
| if (name == titleAttr && m_sheet && isInDocumentTree()) { |
| m_sheet->setTitle(value); |
| } else if (name == mediaAttr && isConnected() && document().isActive() && |
| m_sheet) { |
| m_sheet->setMediaQueries(MediaQuerySet::create(value)); |
| document().styleEngine().setNeedsActiveStyleUpdate(treeScope()); |
| // TODO(rune@opera.com): resolverChanged() can be removed once stylesheet |
| // updates are async. https://crbug.com/567021 |
| document().styleEngine().resolverChanged(FullStyleUpdate); |
| } else { |
| HTMLElement::parseAttribute(name, oldValue, value); |
| } |
| } |
| |
| void HTMLStyleElement::finishParsingChildren() { |
| StyleElement::ProcessingResult result = |
| StyleElement::finishParsingChildren(*this); |
| HTMLElement::finishParsingChildren(); |
| if (result == StyleElement::ProcessingFatalError) |
| notifyLoadedSheetAndAllCriticalSubresources( |
| ErrorOccurredLoadingSubresource); |
| } |
| |
| Node::InsertionNotificationRequest HTMLStyleElement::insertedInto( |
| ContainerNode* insertionPoint) { |
| HTMLElement::insertedInto(insertionPoint); |
| return InsertionShouldCallDidNotifySubtreeInsertions; |
| } |
| |
| void HTMLStyleElement::removedFrom(ContainerNode* insertionPoint) { |
| HTMLElement::removedFrom(insertionPoint); |
| StyleElement::removedFrom(*this, insertionPoint); |
| } |
| |
| void HTMLStyleElement::didNotifySubtreeInsertionsToDocument() { |
| if (StyleElement::processStyleSheet(document(), *this) == |
| StyleElement::ProcessingFatalError) |
| notifyLoadedSheetAndAllCriticalSubresources( |
| ErrorOccurredLoadingSubresource); |
| } |
| |
| void HTMLStyleElement::childrenChanged(const ChildrenChange& change) { |
| HTMLElement::childrenChanged(change); |
| if (StyleElement::childrenChanged(*this) == |
| StyleElement::ProcessingFatalError) |
| notifyLoadedSheetAndAllCriticalSubresources( |
| ErrorOccurredLoadingSubresource); |
| } |
| |
| const AtomicString& HTMLStyleElement::media() const { |
| return getAttribute(mediaAttr); |
| } |
| |
| const AtomicString& HTMLStyleElement::type() const { |
| return getAttribute(typeAttr); |
| } |
| |
| void HTMLStyleElement::dispatchPendingEvent( |
| std::unique_ptr<IncrementLoadEventDelayCount>) { |
| dispatchEvent(Event::create(m_loadedSheet ? EventTypeNames::load |
| : EventTypeNames::error)); |
| } |
| |
| void HTMLStyleElement::notifyLoadedSheetAndAllCriticalSubresources( |
| LoadedSheetErrorStatus errorStatus) { |
| bool isLoadEvent = errorStatus == NoErrorLoadingSubresource; |
| if (m_firedLoad && isLoadEvent) |
| return; |
| m_loadedSheet = isLoadEvent; |
| TaskRunnerHelper::get(TaskType::DOMManipulation, &document()) |
| ->postTask( |
| BLINK_FROM_HERE, |
| WTF::bind(&HTMLStyleElement::dispatchPendingEvent, |
| wrapPersistent(this), |
| passed(IncrementLoadEventDelayCount::create(document())))); |
| m_firedLoad = true; |
| } |
| |
| bool HTMLStyleElement::disabled() const { |
| if (!m_sheet) |
| return false; |
| |
| return m_sheet->disabled(); |
| } |
| |
| void HTMLStyleElement::setDisabled(bool setDisabled) { |
| if (CSSStyleSheet* styleSheet = sheet()) |
| styleSheet->setDisabled(setDisabled); |
| } |
| |
| DEFINE_TRACE(HTMLStyleElement) { |
| StyleElement::trace(visitor); |
| HTMLElement::trace(visitor); |
| } |
| |
| } // namespace blink |