using ComPDFKitViewer.PdfViewer;
using PDF_Office.Model;
using Prism.Commands;
using Prism.Mvvm;
using Prism.Regions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace PDF_Office.ViewModels.Form
{
    public class FormsToolContentViewModel : BindableBase, INavigationAware
    {
        private CPDFViewer PDFViewer;

        public ViewContentViewModel viewContentViewModel;

        private IRegionManager regions;

        /// <summary>
        /// 按钮和属性面板键值对
        /// </summary>
        private Dictionary<string, string> btnToProperty = new Dictionary<string, string>();

        private Visibility showPreView;

        /// <summary>
        /// 显示PreView按钮
        /// </summary>
        public Visibility ShowPreView
        {
            get { return showPreView; }
            set
            {
                SetProperty(ref showPreView, value);
            }
        }

        public DelegateCommand<string> CheckedCommand { get; set; }



        public FormsToolContentViewModel(IRegionManager regionManager)
        {
            regions = regionManager;

            CheckedCommand = new DelegateCommand<string>(CheckedEvent);
            InitBtnToProperty();
        }

        private void InitBtnToProperty()
        {
            btnToProperty.Add("Text", "TextFieldProperty");
            btnToProperty.Add("CheckBox", "CheckBoxProperty");
            btnToProperty.Add("RadioButton", "RadioButtonProperty");
            btnToProperty.Add("ListBox", "ListBoxProperty");
            btnToProperty.Add("Combox", "ComboxProperty");
            btnToProperty.Add("Button", "ButtonProperty");
            btnToProperty.Add("Sign", "SignProperty");
        }

        /// <summary>
        /// Form
        /// </summary>
        /// <param name="type"></param>
        private void CheckedEvent(string type)
        {
            if (btnToProperty.ContainsKey(type))
            {
                regions.RequestNavigate(RegionNames.PropertyRegionName, btnToProperty[type]);
            }
        }

        #region Navegation
        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        public void OnNavigatedFrom(NavigationContext navigationContext)
        {
          
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            navigationContext.Parameters.TryGetValue<ViewContentViewModel>(ParameterNames.ViewContentViewModel,out viewContentViewModel);
            navigationContext.Parameters.TryGetValue<CPDFViewer>(ParameterNames.ViewContentViewModel, out PDFViewer);
        }
        #endregion
    }
}