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

namespace 常用工具集.Base
{
    public class DelegateCommand : ICommand
    {
        public Action<object> ExecuteCommand = null;
        public Func<object, bool> CanExecuteCommand = null; 

        public event EventHandler CanExecuteChanged;

        public DelegateCommand()
        {
        }

        public DelegateCommand(Action<object> Command)
        {
            ExecuteCommand = Command;
        } 

        public bool CanExecute(object paramter)
        {
            if (CanExecuteCommand != null)
            {
                return CanExecuteCommand(paramter);
            }
            else
            {
                return true;
            }
        }

        public void Execute(object paramter)
        {
            if (ExecuteCommand != null)
                ExecuteCommand(paramter);
        }

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