chromium/third_party/blink/renderer/core/html/html_object_element.h

/*
 * Copyright (C) 1999 Lars Knoll ([email protected])
 *           (C) 1999 Antti Koivisto ([email protected])
 * 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 THIRD_PARTY_BLINK_RENDERER_CORE_HTML_HTML_OBJECT_ELEMENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_HTML_OBJECT_ELEMENT_H_

#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/html/forms/form_associated.h"
#include "third_party/blink/renderer/core/html/forms/listed_element.h"
#include "third_party/blink/renderer/core/html/html_frame_owner_element.h"
#include "third_party/blink/renderer/core/html/html_plugin_element.h"
#include "third_party/blink/renderer/core/html_names.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/C/#the-object-element
class CORE_EXPORT HTMLObjectElement final : public HTMLPlugInElement,
                                            public ListedElement,
                                            public FormAssociated { … };

// Like To<HTMLObjectElement>() but accepts a ListedElement as input
// instead of a Node.
const HTMLObjectElement* ToHTMLObjectElementFromListedElement(
    const ListedElement*);
const HTMLObjectElement& ToHTMLObjectElementFromListedElement(
    const ListedElement&);

template <>
struct DowncastTraits<HTMLObjectElement> { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_HTML_OBJECT_ELEMENT_H_