root/Source/core/svg/SVGScriptElement.cpp

DEFINITIONS

1. m_loader
2. create
3. isSupportedAttribute
4. parseAttribute
5. svgAttributeChanged
6. insertedInto
7. didNotifySubtreeInsertionsToDocument
8. childrenChanged
9. isURLAttribute
10. finishParsingChildren
11. haveLoadedRequiredResources
12. sourceAttributeValue
13. charsetAttributeValue
14. typeAttributeValue
15. languageAttributeValue
16. forAttributeValue
17. eventAttributeValue
18. asyncAttributeValue
19. deferAttributeValue
20. hasSourceAttribute
21. cloneElementWithoutAttributesAndChildren
22. dispatchLoadEvent
23. isAnimatableAttribute

/*
 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
 * Copyright (C) 2004, 2005, 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/svg/SVGScriptElement.h"

#include "HTMLNames.h"
#include "XLinkNames.h"
#include "bindings/v8/ScriptEventListener.h"
#include "core/dom/Attribute.h"
#include "core/dom/Document.h"
#include "core/dom/ScriptLoader.h"
#include "core/svg/SVGElementInstance.h"

namespace WebCore {

inline SVGScriptElement::SVGScriptElement(Document& document, bool wasInsertedByParser, bool alreadyStarted)
    : SVGElement(SVGNames::scriptTag, document)
    , SVGURIReference(this)
    , m_svgLoadEventTimer(this, &SVGElement::svgLoadEventTimerFired)
    , m_loader(ScriptLoader::create(this, wasInsertedByParser, alreadyStarted))
{
    ScriptWrappable::init(this);
}

PassRefPtr<SVGScriptElement> SVGScriptElement::create(Document& document, bool insertedByParser)
{
    return adoptRef(new SVGScriptElement(document, insertedByParser, false));
}

bool SVGScriptElement::isSupportedAttribute(const QualifiedName& attrName)
{
    DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
    if (supportedAttributes.isEmpty()) {
        SVGURIReference::addSupportedAttributes(supportedAttributes);
        supportedAttributes.add(SVGNames::typeAttr);
        supportedAttributes.add(HTMLNames::onerrorAttr);
    }
    return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
}

void SVGScriptElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
    if (!isSupportedAttribute(name)) {
        SVGElement::parseAttribute(name, value);
        return;
    }

    SVGParsingError parseError = NoError;
    if (name == SVGNames::typeAttr)
        return;

    if (name == HTMLNames::onerrorAttr) {
        setAttributeEventListener(EventTypeNames::error, createAttributeEventListener(this, name, value));
    } else if (SVGURIReference::parseAttribute(name, value, parseError)) {
    } else {
        ASSERT_NOT_REACHED();
    }

    reportAttributeParsingError(parseError, name, value);
}

void SVGScriptElement::svgAttributeChanged(const QualifiedName& attrName)
{
    if (!isSupportedAttribute(attrName)) {
        SVGElement::svgAttributeChanged(attrName);
        return;
    }

    SVGElementInstance::InvalidationGuard invalidationGuard(this);

    if (attrName == SVGNames::typeAttr || attrName == HTMLNames::onerrorAttr)
        return;

    if (SVGURIReference::isKnownAttribute(attrName)) {
        m_loader->handleSourceAttribute(hrefString());
        return;
    }

    ASSERT_NOT_REACHED();
}

Node::InsertionNotificationRequest SVGScriptElement::insertedInto(ContainerNode* rootParent)
{
    SVGElement::insertedInto(rootParent);
    return InsertionShouldCallDidNotifySubtreeInsertions;
}

void SVGScriptElement::didNotifySubtreeInsertionsToDocument()
{
    m_loader->didNotifySubtreeInsertionsToDocument();

    if (!m_loader->isParserInserted()) {
        m_loader->setHaveFiredLoadEvent(true);
        sendSVGLoadEventIfPossibleAsynchronously();
    }
}

void SVGScriptElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
{
    SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
    m_loader->childrenChanged();
}

bool SVGScriptElement::isURLAttribute(const Attribute& attribute) const
{
    return attribute.name() == AtomicString(sourceAttributeValue());
}

void SVGScriptElement::finishParsingChildren()
{
    SVGElement::finishParsingChildren();
    m_loader->setHaveFiredLoadEvent(true);
}

bool SVGScriptElement::haveLoadedRequiredResources()
{
    return m_loader->haveFiredLoadEvent();
}

String SVGScriptElement::sourceAttributeValue() const
{
    return hrefString();
}

String SVGScriptElement::charsetAttributeValue() const
{
    return String();
}

String SVGScriptElement::typeAttributeValue() const
{
    return getAttribute(SVGNames::typeAttr).string();
}

String SVGScriptElement::languageAttributeValue() const
{
    return String();
}

String SVGScriptElement::forAttributeValue() const
{
    return String();
}

String SVGScriptElement::eventAttributeValue() const
{
    return String();
}

bool SVGScriptElement::asyncAttributeValue() const
{
    return false;
}

bool SVGScriptElement::deferAttributeValue() const
{
    return false;
}

bool SVGScriptElement::hasSourceAttribute() const
{
    return href()->isSpecified();
}

PassRefPtr<Element> SVGScriptElement::cloneElementWithoutAttributesAndChildren()
{
    return adoptRef(new SVGScriptElement(document(), false, m_loader->alreadyStarted()));
}

void SVGScriptElement::dispatchLoadEvent()
{
    dispatchEvent(Event::create(EventTypeNames::load));
}

#ifndef NDEBUG
bool SVGScriptElement::isAnimatableAttribute(const QualifiedName& name) const
{
    if (name == SVGNames::typeAttr)
        return false;

    return SVGElement::isAnimatableAttribute(name);
}
#endif

}