30 lines
1009 B
C#
30 lines
1009 B
C#
using System.Windows.Input;
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namespace Qrakhen.Qamp.Editor.Commands;
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public class RelayCommand : ICommand
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{
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private readonly Action<object?> _execute;
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private readonly Func<object?, bool> _canExecute;
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public RelayCommand(Action<object?> execute) : this(execute, null) { }
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public RelayCommand(Action<object?> execute, Func<object?, bool>? canExecute)
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{
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_execute = execute ?? throw new ArgumentNullException(nameof(execute));
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_canExecute = canExecute ?? (p => true);
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}
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public RelayCommand(Action execute) : this(p => execute()) { }
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public RelayCommand(Action execute, Func<bool> canExecute) : this(p => execute(), p => canExecute()) { }
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public event EventHandler? CanExecuteChanged {
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add => CommandManager.RequerySuggested += value;
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remove => CommandManager.RequerySuggested -= value;
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}
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public bool CanExecute(object? parameter) => _canExecute(parameter);
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public void Execute(object? parameter) => _execute(parameter);
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} |