AlarmBuzzer.cs
1.8 KB
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace DeviceLibrary
{
public class AlarmBuzzer
{
delegate void on();
static on ondelegate;
static on offdelegate;
static bool enable = false;
public static bool Enable
{
get => enable; set
{
enable = value;
if (!value)
{
OFF();
}
}
}
volatile static AlarmBuzzerState State = AlarmBuzzerState.OFF;
public static event EventHandler<bool> BuzzerStateChange;
public static void SetOnOffAction(Action ona, Action offa)
{
ondelegate = new on(ona);
offdelegate = new on(offa);
}
public static void ON(bool force = false)
{
if (!Enable)
return;
if (force || (State != AlarmBuzzerState.ON && State != AlarmBuzzerState.MuteOnce))
{
State = AlarmBuzzerState.ON;
ondelegate?.Invoke();
BuzzerStateChange?.Invoke(null, true);
}
}
public static void OFF()
{
if (State == AlarmBuzzerState.OFF)
return;
State = AlarmBuzzerState.OFF;
offdelegate?.Invoke();
BuzzerStateChange?.Invoke(null, false);
}
public static void MuteOnce()
{
if (State == AlarmBuzzerState.ON)
{
State = AlarmBuzzerState.MuteOnce;
offdelegate?.Invoke();
BuzzerStateChange?.Invoke(null, false);
}
}
}
enum AlarmBuzzerState
{
ON,
OFF,
MuteOnce
}
}