void SVGScriptElement::dispatchLoadEvent()
{
    bool externalResourcesRequired = externalResourcesRequiredBaseValue();

    if (m_data.createdByParser())
        ASSERT(externalResourcesRequired != m_data.haveFiredLoadEvent());
    else if (m_data.haveFiredLoadEvent()) {
        // If we've already fired an load event and externalResourcesRequired is set to 'true'
        // externalResourcesRequired has been modified while loading the <script>. Don't dispatch twice.
        if (externalResourcesRequired)
            return;
    }

    // HTML and SVG differ completly in the 'onload' event handling of <script> elements.
    // HTML fires the 'load' event after it sucessfully loaded a remote resource, otherwhise an error event.
    // SVG fires the SVGLoad event immediately after parsing the <script> element, if externalResourcesRequired
    // is set to 'false', otherwhise it dispatches the 'SVGLoad' event just after loading the remote resource.
    if (externalResourcesRequired) {
        ASSERT(!m_data.haveFiredLoadEvent());

        // Dispatch SVGLoad event
        m_data.setHaveFiredLoadEvent(true);
        ASSERT(haveLoadedRequiredResources());

        sendSVGLoadEventIfPossible();
    }
}
void SVGScriptElement::finishParsingChildren()
{
    ScriptElement::finishParsingChildren(m_data, sourceAttributeValue());
    SVGElement::finishParsingChildren();

    // A SVGLoad event has been fired by SVGElement::finishParsingChildren.
    if (!externalResourcesRequiredBaseValue())
        m_data.setHaveFiredLoadEvent(true);
}
void SVGExternalResourcesRequired::insertedIntoDocument(SVGElement* targetElement)
{
    if (isParserInserted())
        return;

    // Eventually send SVGLoad event now for the dynamically inserted script element.
    if (externalResourcesRequiredBaseValue())
        return;
    setHaveFiredLoadEvent(true);
    targetElement->sendSVGLoadEventIfPossible();
}
void SVGScriptElement::insertedIntoDocument()
{
    SVGElement::insertedIntoDocument();
    ScriptElement::insertedIntoDocument(m_data, sourceAttributeValue());

    if (m_data.createdByParser())
        return;

    // Eventually send SVGLoad event now for the dynamically inserted script element
    if (!externalResourcesRequiredBaseValue()) {
        m_data.setHaveFiredLoadEvent(true);
        sendSVGLoadEventIfPossible();
    }
}
void SVGScriptElement::svgAttributeChanged(const QualifiedName& attrName)
{
    SVGElement::svgAttributeChanged(attrName);

    if (SVGURIReference::isKnownAttribute(attrName))
        handleSourceAttribute(m_data, href());
    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName)) {
        // Handle dynamic updates of the 'externalResourcesRequired' attribute. Only possible case: changing from 'true' to 'false'
        // causes an immediate dispatch of the SVGLoad event. If the attribute value was 'false' before inserting the script element
        // in the document, the SVGLoad event has already been dispatched.
        if (!externalResourcesRequiredBaseValue() && !m_data.haveFiredLoadEvent() && !m_data.createdByParser()) {
            m_data.setHaveFiredLoadEvent(true);
            ASSERT(haveLoadedRequiredResources());

            sendSVGLoadEventIfPossible();
        }
    }
}
bool SVGExternalResourcesRequired::handleAttributeChange(SVGElement* targetElement, const QualifiedName& attrName)
{
    ASSERT(targetElement);
    if (!isKnownAttribute(attrName))
        return false;
    if (!targetElement->inDocument())
        return true;

    // Handle dynamic updates of the 'externalResourcesRequired' attribute. Only possible case: changing from 'true' to 'false'
    // causes an immediate dispatch of the SVGLoad event. If the attribute value was 'false' before inserting the script element
    // in the document, the SVGLoad event has already been dispatched.
    if (!externalResourcesRequiredBaseValue() && !haveFiredLoadEvent() && !isParserInserted()) {
        setHaveFiredLoadEvent(true);
        ASSERT(targetElement->haveLoadedRequiredResources());

        targetElement->sendSVGLoadEventIfPossible();
    }

    return true;
}
void SVGExternalResourcesRequired::dispatchLoadEvent(SVGElement* targetElement)
{
    bool externalResourcesRequired = externalResourcesRequiredBaseValue();

    if (isParserInserted())
        ASSERT(externalResourcesRequired != haveFiredLoadEvent());
    else if (haveFiredLoadEvent())
        return;

    // HTML and SVG differ completely in the 'onload' event handling of <script> elements.
    // HTML fires the 'load' event after it sucessfully loaded a remote resource, otherwise an error event.
    // SVG fires the SVGLoad event immediately after parsing the <script> element, if externalResourcesRequired
    // is set to 'false', otherwise it dispatches the 'SVGLoad' event just after loading the remote resource.
    if (!externalResourcesRequired)
        return;

    ASSERT(!haveFiredLoadEvent());

    // Dispatch SVGLoad event
    setHaveFiredLoadEvent(true);
    ASSERT(targetElement->haveLoadedRequiredResources());

    targetElement->sendSVGLoadEventIfPossible();
}
Ejemplo n.º 8
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bool SVGImageElement::haveLoadedRequiredResources()
{
    return !externalResourcesRequiredBaseValue() || m_imageLoader.haveFiredLoadEvent();
}
bool SVGScriptElement::haveLoadedRequiredResources()
{
    return !externalResourcesRequiredBaseValue() || m_data.haveFiredLoadEvent();
}
Ejemplo n.º 10
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bool SVGImageElement::haveLoadedRequiredResources()
{
    return !externalResourcesRequiredBaseValue() || !m_imageLoader.hasPendingActivity();
}
bool SVGExternalResourcesRequired::haveLoadedRequiredResources() const
{
    return !externalResourcesRequiredBaseValue() || haveFiredLoadEvent();
}
void SVGExternalResourcesRequired::finishParsingChildren()
{
    // A SVGLoad event has been fired by SVGElement::finishParsingChildren.
    if (!externalResourcesRequiredBaseValue())
        setHaveFiredLoadEvent(true);
}