using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Input;

namespace Aitex.UI.RecipeEditor
{
    public class DelegatedCommand : ICommand
    {
        public DelegatedCommand(Predicate<object> CanExecute, Action<object> Execute)
        {
            _canExecute = CanExecute;
            _execute = Execute;
        }

        Predicate<object> _canExecute;

        Action<object> _execute;

        /// <summary>
        /// 
        /// </summary>
        /// <param name="parameter"></param>
        /// <returns></returns>
        public bool CanExecute(object parameter)
        {
            if (_canExecute != null)
                return _canExecute.Invoke(parameter);
            return true;
        }

        public event EventHandler CanExecuteChanged;

        public void Execute(object parameter)
        {
            if (_execute != null)
                _execute.Invoke(parameter);
        }

        public void RaiseCanExecuteChanged()
        {
            if (CanExecuteChanged != null)
                CanExecuteChanged(this, EventArgs.Empty);
        }
    }
}