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

   1 /*
   2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
   3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
   4  *           (C) 2000 Dirk Mueller (mueller@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/CoreExport.h"
  28 #include "core/html/HTMLElement.h"
  29 #include "core/style/ComputedStyle.h"
  30
  31 namespace blink {
  32
  33 class HTMLSelectElement;
  34 class HTMLDivElement;
  35
  36 class CORE_EXPORT HTMLOptGroupElement final : public HTMLElement {
  37     DEFINE_WRAPPERTYPEINFO();
  38 public:
  39     static PassRefPtrWillBeRawPtr<HTMLOptGroupElement> create(Document&);
  40
  41     bool isDisabledFormControl() const override;
  42     HTMLSelectElement* ownerSelectElement() const;
  43
  44     String groupLabelText() const;
  45     HTMLDivElement& optGroupLabelElement() const;
  46
  47 private:
  48     explicit HTMLOptGroupElement(Document&);
  49
  50     bool supportsFocus() const override;
  51     void parseAttribute(const QualifiedName&, const AtomicString&) override;
  52     void childrenChanged(const ChildrenChange&) override;
  53     void accessKeyAction(bool sendMouseEvents) override;
  54     void didAddUserAgentShadowRoot(ShadowRoot&) override;
  55     void attach(const AttachContext& = AttachContext()) override;
  56     void detach(const AttachContext& = AttachContext()) override;
  57
  58     // <optgroup> might not have a layoutObject so we manually manage a cached style.
  59     void updateNonComputedStyle();
  60     ComputedStyle* nonLayoutObjectComputedStyle() const override;
  61     PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
  62
  63     void updateGroupLabel();
  64     void recalcSelectOptions();
  65
  66     RefPtr<ComputedStyle> m_style;
  67 };
  68
  69 } // namespace blink
  70
  71 #endif // HTMLOptGroupElement_h