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using System;
using System.Linq;
using System.Collections.Generic;
using UnityEngine.EventSystems;
namespace UnityEngine.UI
{
[AddComponentMenu("UI/Toggle Group", 32)]
[DisallowMultipleComponent]
public class ToggleGroup : UIBehaviour
{
[SerializeField] private bool m_AllowSwitchOff = false;
public bool allowSwitchOff { get { return m_AllowSwitchOff; } set { m_AllowSwitchOff = value; } }
private List<Toggle> m_Toggles = new List<Toggle>();
protected ToggleGroup()
{}
private void ValidateToggleIsInGroup(Toggle toggle)
{
if (toggle == null || !m_Toggles.Contains(toggle))
throw new ArgumentException(string.Format("Toggle {0} is not part of ToggleGroup {1}", new object[] {toggle, this}));
}
public void NotifyToggleOn(Toggle toggle)
{
ValidateToggleIsInGroup(toggle);
// disable all toggles in the group
for (var i = 0; i < m_Toggles.Count; i++)
{
if (m_Toggles[i] == toggle)
continue;
m_Toggles[i].isOn = false;
}
}
public void UnregisterToggle(Toggle toggle)
{
if (m_Toggles.Contains(toggle))
m_Toggles.Remove(toggle);
}
public void RegisterToggle(Toggle toggle)
{
if (!m_Toggles.Contains(toggle))
m_Toggles.Add(toggle);
}
public bool AnyTogglesOn()
{
return m_Toggles.Find(x => x.isOn) != null;
}
public IEnumerable<Toggle> ActiveToggles()
{
return m_Toggles.Where(x => x.isOn);
}
public void SetAllTogglesOff()
{
bool oldAllowSwitchOff = m_AllowSwitchOff;
m_AllowSwitchOff = true;
for (var i = 0; i < m_Toggles.Count; i++)
m_Toggles[i].isOn = false;
m_AllowSwitchOff = oldAllowSwitchOff;
}
}
}
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