blob: 4f8385fc126a3b30112fc10f43ced93223737480 [file] [log] [blame]
/*
* 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 "config.h"
#include "core/html/HTMLStyleElement.h"
#include "core/HTMLNames.h"
#include "core/css/MediaList.h"
#include "core/dom/Document.h"
#include "core/dom/shadow/ShadowRoot.h"
#include "core/events/Event.h"
#include "core/events/EventSender.h"
namespace blink {
using namespace HTMLNames;
static StyleEventSender& styleLoadEventSender()
{
DEFINE_STATIC_LOCAL(StyleEventSender, sharedLoadEventSender, (EventTypeNames::load));
return sharedLoadEventSender;
}
inline HTMLStyleElement::HTMLStyleElement(Document& document, bool createdByParser)
: HTMLElement(styleTag, document)
, StyleElement(&document, createdByParser)
, m_firedLoad(false)
, m_loadedSheet(false)
{
}
HTMLStyleElement::~HTMLStyleElement()
{
#if !ENABLE(OILPAN)
StyleElement::clearDocumentData(document(), this);
#endif
styleLoadEventSender().cancelEvent(this);
}
PassRefPtrWillBeRawPtr<HTMLStyleElement> HTMLStyleElement::create(Document& document, bool createdByParser)
{
return adoptRefWillBeNoop(new HTMLStyleElement(document, createdByParser));
}
void HTMLStyleElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == titleAttr && m_sheet) {
m_sheet->setTitle(value);
} else if (name == mediaAttr && inDocument() && document().isActive() && m_sheet) {
m_sheet->setMediaQueries(MediaQuerySet::create(value));
document().modifiedStyleSheet(m_sheet.get());
} else {
HTMLElement::parseAttribute(name, 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);
StyleElement::insertedInto(this, 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);
}
ContainerNode* HTMLStyleElement::scopingNode()
{
if (!inDocument())
return nullptr;
if (isInShadowTree())
return containingShadowRoot();
return &document();
}
void HTMLStyleElement::dispatchPendingLoadEvents()
{
styleLoadEventSender().dispatchPendingEvents();
}
void HTMLStyleElement::dispatchPendingEvent(StyleEventSender* eventSender)
{
ASSERT_UNUSED(eventSender, eventSender == &styleLoadEventSender());
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;
styleLoadEventSender().dispatchEventSoon(this);
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);
}
}