1 /* 2 * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved. 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 RadioButtonGroupScope_h 22 #define RadioButtonGroupScope_h 23 24 #include "platform/heap/Handle.h" 25 #include "wtf/Forward.h" 26 #include "wtf/HashMap.h" 27 #include "wtf/OwnPtr.h" 28 #include "wtf/text/StringHash.h" 29 30 namespace WebCore { 31 32 class HTMLInputElement; 33 class RadioButtonGroup; 34 35 class RadioButtonGroupScope { 36 DISALLOW_ALLOCATION(); 37 public: 38 RadioButtonGroupScope(); 39 ~RadioButtonGroupScope(); 40 void trace(Visitor*); 41 void addButton(HTMLInputElement*); 42 void updateCheckedState(HTMLInputElement*); 43 void requiredAttributeChanged(HTMLInputElement*); 44 void removeButton(HTMLInputElement*); 45 HTMLInputElement* checkedButtonForGroup(const AtomicString& groupName) const; 46 bool isInRequiredGroup(HTMLInputElement*) const; 47 48 private: 49 typedef WillBeHeapHashMap<AtomicString, OwnPtrWillBeMember<RadioButtonGroup>, CaseFoldingHash> NameToGroupMap; 50 OwnPtrWillBeMember<NameToGroupMap> m_nameToGroupMap; 51 }; 52 53 } // namespace WebCore 54 55 #endif // RadioButtonGroupScope_h 56