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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2004, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
*
* 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.
*
*/
#ifndef HTMLObjectElement_h
#define HTMLObjectElement_h
#include "core/CoreExport.h"
#include "core/html/FormAssociated.h"
#include "core/html/HTMLPlugInElement.h"
#include "core/html/ListedElement.h"
namespace blink {
class HTMLFormElement;
// Inheritance of ListedElement was used for NPAPI form association, but
// is still kept here so that legacy APIs such as form attribute can keep
// working according to the spec. See:
// https://html.spec.whatwg.org/multipage/embedded-content.html#the-object-element
class CORE_EXPORT HTMLObjectElement final : public HTMLPlugInElement,
public ListedElement,
public FormAssociated {
DEFINE_WRAPPERTYPEINFO();
USING_GARBAGE_COLLECTED_MIXIN(HTMLObjectElement);
public:
static HTMLObjectElement* create(Document&,
bool createdByParser);
~HTMLObjectElement() override;
DECLARE_VIRTUAL_TRACE();
const String& classId() const { return m_classId; }
HTMLFormElement* formOwner() const override;
bool containsJavaApplet() const;
bool hasFallbackContent() const override;
bool useFallbackContent() const override;
bool canRenderFallbackContent() const override { return true; }
void renderFallbackContent() override;
bool isFormControlElement() const override { return false; }
bool isEnumeratable() const override { return true; }
bool isInteractiveContent() const override;
// Implementations of constraint validation API.
// Note that the object elements are always barred from constraint validation.
String validationMessage() const override { return String(); }
bool checkValidity() { return true; }
bool reportValidity() { return true; }
void setCustomValidity(const String&) override {}
bool canContainRangeEndPoint() const override { return useFallbackContent(); }
bool isExposed() const;
bool willUseFallbackContentAtLayout() const;
FormAssociated* toFormAssociatedOrNull() override { return this; };
void associateWith(HTMLFormElement*) override;
private:
HTMLObjectElement(Document&, bool createdByParser);
void parseAttribute(const AttributeModificationParams&) override;
bool isPresentationAttribute(const QualifiedName&) const override;
void collectStyleForPresentationAttribute(const QualifiedName&,
const AtomicString&,
MutableStylePropertySet*) override;
InsertionNotificationRequest insertedInto(ContainerNode*) override;
void removedFrom(ContainerNode*) override;
void didMoveToNewDocument(Document& oldDocument) override;
void childrenChanged(const ChildrenChange&) override;
bool isURLAttribute(const Attribute&) const override;
bool hasLegalLinkAttribute(const QualifiedName&) const override;
const QualifiedName& subResourceAttributeName() const override;
const AtomicString imageSourceURL() const override;
LayoutPart* existingLayoutPart() const override;
void updateWidgetInternal() override;
void updateDocNamedItem();
void reattachFallbackContent();
// FIXME: This function should not deal with url or serviceType
// so that we can better share code between <object> and <embed>.
void parametersForPlugin(Vector<String>& paramNames,
Vector<String>& paramValues,
String& url,
String& serviceType);
bool hasValidClassId() const;
void reloadPluginOnAttributeChange(const QualifiedName&);
bool shouldRegisterAsNamedItem() const override { return true; }
bool shouldRegisterAsExtraNamedItem() const override { return true; }
String m_classId;
bool m_useFallbackContent : 1;
};
// Intentionally left unimplemented, template specialization needs to be
// provided for specific return types.
template <typename T>
inline const T& toElement(const ListedElement&);
template <typename T>
inline const T* toElement(const ListedElement*);
// Make toHTMLObjectElement() accept a ListedElement as input instead of
// a Node.
template <>
inline const HTMLObjectElement* toElement<HTMLObjectElement>(
const ListedElement* element) {
SECURITY_DCHECK(!element || !element->isFormControlElement());
const HTMLObjectElement* objectElement =
static_cast<const HTMLObjectElement*>(element);
// We need to assert after the cast because ListedElement doesn't
// have hasTagName.
SECURITY_DCHECK(!objectElement ||
objectElement->hasTagName(HTMLNames::objectTag));
return objectElement;
}
template <>
inline const HTMLObjectElement& toElement<HTMLObjectElement>(
const ListedElement& element) {
SECURITY_DCHECK(!element.isFormControlElement());
const HTMLObjectElement& objectElement =
static_cast<const HTMLObjectElement&>(element);
// We need to assert after the cast because ListedElement doesn't
// have hasTagName.
SECURITY_DCHECK(objectElement.hasTagName(HTMLNames::objectTag));
return objectElement;
}
} // namespace blink
#endif // HTMLObjectElement_h
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