[Webkit-unassigned] [Bug 120297] New: HTMLUnknownElement doesn't have own tag

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=120297

           Summary: HTMLUnknownElement doesn't have own tag
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: gyuyoung.kim at samsung.com


As mentioned in https://bugs.webkit.org/show_bug.cgi?id=119951#c13, HTMLUnknownElement can own specific tag(e.g. audiotag, videoTag and so on) though it isn't correct element class. In this case, isHTMLXXXElement() returns "true" though it is HTMLUnknowElement.


PassRefPtr<HTMLElement> HTMLElementFactory::createHTMLElement(const QualifiedName& qName, Document* document, HTMLFormElement* formElement, bool createdByParser)
{
    if (!document)
        return 0;

#if ENABLE(CUSTOM_ELEMENTS)
    if (document->registry()) {
        if (RefPtr<CustomElementConstructor> constructor = document->registry()->find(nullQName(), qName)) {
            RefPtr<Element> element = constructor->createElement();
            ASSERT(element->isHTMLElement());
            return static_pointer_cast<HTMLElement>(element.release());
        }
    }
#endif

    if (!gFunctionMap)
        createFunctionMap();
    if (ConstructorFunction function = gFunctionMap->get(qName.localName().impl())) {
        if (PassRefPtr<HTMLElement> element = function(qName, document, formElement, createdByParser))
            return element;
    }

    return HTMLUnknownElement::create(qName, document);

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