File: AXRadioInput.h

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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef AXRadioInput_h
#define AXRadioInput_h

#include "modules/accessibility/AXLayoutObject.h"

namespace blink {

class AXObjectCacheImpl;
class HTMLInputElement;

class AXRadioInput final : public AXLayoutObject {
  WTF_MAKE_NONCOPYABLE(AXRadioInput);

 public:
  static AXRadioInput* create(LayoutObject*, AXObjectCacheImpl&);
  ~AXRadioInput() override {}

  bool isAXRadioInput() const override { return true; }
  void updatePosAndSetSize(int position = 0);
  void requestUpdateToNextNode(bool forward);
  HTMLInputElement* findFirstRadioButtonInGroup(
      HTMLInputElement* current) const;

  int posInSet() const final;
  int setSize() const final;

 private:
  AXRadioInput(LayoutObject*, AXObjectCacheImpl&);
  bool calculatePosInSet();
  int countFromFirstElement() const;
  HTMLInputElement* element() const;
  int sizeOfRadioGroup() const;

  int m_posInSet;
  int m_setSize;
};

DEFINE_AX_OBJECT_TYPE_CASTS(AXRadioInput, isAXRadioInput());

}  // namespace blink

#endif  // AXRadioInput_h