MassiveKnob/Windows/MassiveKnob/Helpers/DelegateCommand.cs

82 lines
1.8 KiB
C#

/*
using System;
using System.Windows.Input;
namespace MassiveKnob.Helpers
{
public class DelegateCommand : ICommand
{
private readonly Action execute;
private readonly Func<bool> canExecute;
public DelegateCommand(Action execute) : this(execute, null)
{
}
public DelegateCommand(Action execute, Func<bool> canExecute)
{
this.execute = execute ?? throw new ArgumentNullException(nameof(execute));
this.canExecute = canExecute;
}
public bool CanExecute(object parameter)
{
return canExecute?.Invoke() ?? true;
}
public void Execute(object parameter)
{
execute();
}
public event EventHandler CanExecuteChanged
{
add => CommandManager.RequerySuggested += value;
remove => CommandManager.RequerySuggested -= value;
}
}
public class DelegateCommand<T> : ICommand
{
private readonly Action<T> execute;
private readonly Predicate<T> canExecute;
public DelegateCommand(Action<T> execute) : this(execute, null)
{
}
public DelegateCommand(Action<T> execute, Predicate<T> canExecute)
{
this.execute = execute ?? throw new ArgumentNullException(nameof(execute));
this.canExecute = canExecute;
}
public bool CanExecute(object parameter)
{
return canExecute?.Invoke((T)parameter) ?? true;
}
public void Execute(object parameter)
{
execute((T)parameter);
}
public event EventHandler CanExecuteChanged
{
add => CommandManager.RequerySuggested += value;
remove => CommandManager.RequerySuggested -= value;
}
}
}
*/