BOB/BOB/ViewModels/SingleStepEditViewModel.cs

using BOB.Models;
using Common.PubEvent;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;

namespace BOB.ViewModels
{
    public class SingleStepEditViewModel:BindableBase
    {
        #region 属性
        private StepModel _SelectedStep;
        public StepModel SelectedStep
        {
            get => _SelectedStep;
            set => SetProperty(ref _SelectedStep, value);
        }
        private ProgramModel _Program;
        public ProgramModel Program
        {
            get => _Program;
            set => SetProperty(ref _Program, value);
        }
        #endregion
        private GlobalVariables _globalVariables;
        private IEventAggregator _eventAggregator;
        public ICommand CancelEditCommand { get; set; }
        public ICommand SaveStepCommand { get; set; }
        public SingleStepEditViewModel(GlobalVariables globalVariables,IEventAggregator eventAggregator)
        {
            _globalVariables= globalVariables;
            _eventAggregator= eventAggregator;
            _eventAggregator.GetEvent<EditSetpEvent>().Subscribe(EditSingleSetp);
            CancelEditCommand = new DelegateCommand(CancelEdit);    
            SaveStepCommand = new DelegateCommand(SaveStep);
            _eventAggregator.GetEvent<DeletedStepEvent>().Subscribe(DisposeSelectedStep);
            Program = _globalVariables.Program;
        }

        private void DisposeSelectedStep(Guid id)
        {
            if (SelectedStep == null) return;
            if(id== SelectedStep.ID)
            SelectedStep = null;
        }

        private void CancelEdit()
        {
            SelectedStep = null;
        }

        private void SaveStep()
        {
            if (SelectedStep == null || (SelectedStep.Method == null && SelectedStep.SubProgram == null))
            {
                return;
            }
            
        }

        private void EditSingleSetp()
        {
            SelectedStep = new StepModel(_globalVariables.SelectedStep);
        }
    }
}