WebCore/OptionElement.h

   1 /*
   2  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public License
  15  * along with this library; see the file COPYING.LIB.  If not, write to
  16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  *
  19  */
  20
  21 #ifndef OptionElement_h
  22 #define OptionElement_h
  23
  24 #include "PlatformString.h"
  25
  26 namespace WebCore {
  27
  28 class Element;
  29 class Document;
  30 class OptionElementData;
  31
  32 class OptionElement {
  33 public:
  34     virtual ~OptionElement() { }
  35
  36     virtual bool selected() const = 0;
  37     virtual void setSelectedState(bool) = 0;
  38
  39     virtual String textIndentedToRespectGroupLabel() const = 0;
  40     virtual String value() const = 0;
  41
  42 protected:
  43     OptionElement() { }
  44
  45     static void setSelectedState(OptionElementData&, bool selected);
  46     static String collectOptionText(const OptionElementData&, Document*);
  47     static String collectOptionTextRespectingGroupLabel(const OptionElementData&, Document*);
  48     static String collectOptionValue(const OptionElementData&, Document*);
  49 };
  50
  51 // HTML/WMLOptionElement hold this struct as member variable
  52 // and pass it to the static helper functions in OptionElement
  53 class OptionElementData {
  54 public:
  55     OptionElementData(Element*);
  56     ~OptionElementData();
  57
  58     Element* element() const { return m_element; }
  59
  60     String value() const { return m_value; }
  61     void setValue(const String& value) { m_value = value; }
  62
  63     String label() const { return m_label; }
  64     void setLabel(const String& label) { m_label = label; }
  65
  66     bool selected() const { return m_selected; }
  67     void setSelected(bool selected) { m_selected = selected; }
  68
  69 private:
  70     Element* m_element;
  71     String m_value;
  72     String m_label;
  73     bool m_selected;
  74 };
  75
  76 OptionElement* toOptionElement(Element*);
  77
  78 }
  79
  80 #endif