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      1 /*
      2  * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 1999 Antti Koivisto (koivisto (at) kde.org)
      4  *           (C) 2000 Dirk Mueller (mueller (at) kde.org)
      5  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
      6  *
      7  * This library is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU Library General Public
      9  * License as published by the Free Software Foundation; either
     10  * version 2 of the License, or (at your option) any later version.
     11  *
     12  * This library is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  * Library General Public License for more details.
     16  *
     17  * You should have received a copy of the GNU Library General Public License
     18  * along with this library; see the file COPYING.LIB.  If not, write to
     19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  * Boston, MA 02110-1301, USA.
     21  *
     22  */
     23 
     24 #ifndef HTMLOptGroupElement_h
     25 #define HTMLOptGroupElement_h
     26 
     27 #include "core/html/HTMLElement.h"
     28 
     29 namespace blink {
     30 
     31 class HTMLSelectElement;
     32 class HTMLDivElement;
     33 
     34 class HTMLOptGroupElement FINAL : public HTMLElement {
     35     DEFINE_WRAPPERTYPEINFO();
     36 public:
     37     static PassRefPtrWillBeRawPtr<HTMLOptGroupElement> create(Document&);
     38 
     39     virtual bool isDisabledFormControl() const OVERRIDE;
     40     HTMLSelectElement* ownerSelectElement() const;
     41 
     42     String groupLabelText() const;
     43     HTMLDivElement& optGroupLabelElement() const;
     44 
     45 private:
     46     explicit HTMLOptGroupElement(Document&);
     47 
     48     virtual bool rendererIsFocusable() const OVERRIDE { return true; }
     49     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     50     virtual void childrenChanged(const ChildrenChange&) OVERRIDE;
     51     virtual void accessKeyAction(bool sendMouseEvents) OVERRIDE;
     52     virtual void didAddUserAgentShadowRoot(ShadowRoot&) OVERRIDE;
     53     virtual void attach(const AttachContext& = AttachContext()) OVERRIDE;
     54     virtual void detach(const AttachContext& = AttachContext()) OVERRIDE;
     55 
     56     // <optgroup> might not have a renderer so we manually manage a cached style.
     57     void updateNonRenderStyle();
     58     virtual RenderStyle* nonRendererStyle() const OVERRIDE;
     59     virtual PassRefPtr<RenderStyle> customStyleForRenderer() OVERRIDE;
     60 
     61     void updateGroupLabel();
     62     void recalcSelectOptions();
     63 
     64     RefPtr<RenderStyle> m_style;
     65 };
     66 
     67 } // namespace blink
     68 
     69 #endif // HTMLOptGroupElement_h
     70