New interface and function for form association

third_party/WebKit/Source/core/html/HTMLFormControlElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 HTMLFormControlElement_h
 #define HTMLFormControlElement_h
 
 #include "core/CoreExport.h"
+#include "core/html/FormAssociated.h"
 #include "core/html/LabelableElement.h"
 #include "core/html/ListedElement.h"
 
 namespace blink {
 
 class HTMLFormElement;
 class ValidationMessageClient;
 
 enum CheckValidityEventBehavior {
   CheckValidityDispatchNoEvent,
   CheckValidityDispatchInvalidEvent
 };
 
 // HTMLFormControlElement is the default implementation of
 // ListedElement, and listed element implementations should use
 // HTMLFormControlElement unless there is a special reason.
 class CORE_EXPORT HTMLFormControlElement : public LabelableElement,
-                                           public ListedElement {
+                                           public ListedElement,
+                                           public FormAssociated {
   USING_GARBAGE_COLLECTED_MIXIN(HTMLFormControlElement);
 
  public:
   ~HTMLFormControlElement() override;
   DECLARE_VIRTUAL_TRACE();
 
   String formAction() const;
   void setFormAction(const AtomicString&);
   String formEnctype() const;
   void setFormEnctype(const AtomicString&);
@@ skipping 63 matching lines @@
 
   bool isAutofilled() const { return m_isAutofilled; }
   void setAutofilled(bool = true);
 
   static HTMLFormControlElement* enclosingFormControlElement(Node*);
 
   String nameForAutofill() const;
 
   void copyNonAttributePropertiesFromElement(const Element&) override;
 
+  FormAssociated* toFormAssociatedOrNull() override { return this; };
+  void associateWith(HTMLFormElement*) override;
+
  protected:
   HTMLFormControlElement(const QualifiedName& tagName,
                          Document&,
                          HTMLFormElement*);
 
   void parseAttribute(const QualifiedName&,
                       const AtomicString&,
                       const AtomicString&) override;
   virtual void requiredAttributeChanged();
   virtual void disabledAttributeChanged();
@@ skipping 74 matching lines @@
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLFormControlElement);
 DEFINE_TYPE_CASTS(HTMLFormControlElement,
                   ListedElement,
                   control,
                   control->isFormControlElement(),
                   control.isFormControlElement());
 
 }  // namespace blink
 
 #endif