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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core;
using Tango.Core.Commands;
using Tango.Core.DI;
using Tango.Integration.Operation;
using Tango.PPC.Common.Connection;
using Tango.PPC.Common.Notifications;
namespace Tango.PPC.Maintenance
{
public abstract class MaintenanceCommand<T> : ExtendedObject
{
private IMachineProvider _machineProvider;
[TangoInject(Mode = TangoInjectMode.WhenAvailable)]
protected IMachineProvider MachineProvider
{
get { return _machineProvider; }
set
{
_machineProvider = value; RaisePropertyChangedAuto();
_machineProvider.MachineOperator.StatusChanged += MachineOperator_StatusChanged;
}
}
[TangoInject(Mode = TangoInjectMode.WhenAvailable)]
protected INotificationProvider NotificationProvider { get; set; }
private RelayCommand _command;
public RelayCommand Command
{
get { return _command; }
set { _command = value; RaisePropertyChangedAuto(); }
}
private bool _isEnabled;
public bool IsEnabled
{
get { return _isEnabled; }
set { _isEnabled = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
}
private T _state;
public T State
{
get { return _state; }
set { _state = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
}
private void MachineOperator_StatusChanged(object sender, MachineStatuses e)
{
InvalidateRelayCommands();
}
public MaintenanceCommand()
{
TangoIOC.Default.Inject(this);
IsEnabled = true;
Command = new RelayCommand(Execute, CanExecute);
}
protected virtual bool CanExecute()
{
if (!IsEnabled) return false;
if (MachineProvider == null) return false;
if (!MachineProvider.MachineOperator.CanPrint) return false;
return true;
}
private void Execute()
{
OnExecute();
}
protected abstract void OnExecute();
}
}
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