| /* |
| * This file is part of the WebKit project. |
| * |
| * Copyright (C) 2013 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. |
| * |
| */ |
| |
| #pragma once |
| |
| #include "FormAssociatedElement.h" |
| |
| namespace WebCore { |
| |
| // ValidityState is not a separate object, but rather an interface of FormAssociatedElement that |
| // is published as part of the DOM. We could implement this as a base class of FormAssociatedElement, |
| // but that would have a small runtime cost, and no significant benefit. We'd prefer to implement this |
| // as a typedef of FormAssociatedElement, but that would require changes to bindings generation. |
| class ValidityState : public FormAssociatedElement { |
| }; |
| |
| inline ValidityState* FormAssociatedElement::validity() |
| { |
| // Because ValidityState adds nothing to FormAssociatedElement, we rely on it being safe |
| // to cast a FormAssociatedElement like this, even though it's not actually a ValidityState. |
| return static_cast<ValidityState*>(this); |
| } |
| |
| } // namespace WebCore |
