Files
QuickLook/QuickLook.Common/Commands/RelayCommand.cs
T

37 lines
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C#

// Copyright © 2017-2026 QL-Win Contributors
//
// This file is part of QuickLook program.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Windows.Input;
namespace QuickLook.Common.Commands;
public class RelayCommand(Action execute, Func<bool> canExecute = null) : ICommand
{
private readonly Action _execute = execute;
private readonly Func<bool> _canExecute = canExecute;
public bool CanExecute(object parameter) => _canExecute?.Invoke() ?? true;
public void Execute(object parameter) => _execute();
public event EventHandler CanExecuteChanged;
public void RaiseCanExecuteChanged() =>
CanExecuteChanged?.Invoke(this, EventArgs.Empty);
}