PDFOffice_Windows_exe/PDF Office/ViewModels/Form/FormsToolContentViewModel.cs

using ComPDFKitViewer;
using ComPDFKitViewer.AnnotEvent;
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)
        {
            AddToPropertyPanel(type);

        }

        private void AddToPropertyPanel(string type, WidgetArgs widget = null)
        {
            if (btnToProperty.ContainsKey(type))
            {
                NavigationParameters parameters = new NavigationParameters();
                parameters.Add(ParameterNames.PDFViewer, PDFViewer);
                parameters.Add("WidgetArgs", widget);
                regions.RequestNavigate(RegionNames.PropertyRegionName, btnToProperty[type], parameters);
                ShowPropertyPanel(true);
            }
        }

        #region 获取Form

        private void GetTextField()
        {
            
        }

        private void GetButton()
        {

        }

        private void GeCheckBox()
        {

        }

        private void GetCombox()
        {

        }

        private void GetListBox()
        {

        }

        private void GetRadioButton()
        {

        }

        private void GetSign()
        {

        }


        #endregion

        private void ShowPropertyPanel(bool show = true)
        {
            viewContentViewModel.IsPropertyOpen = show;
        }

        #region 表单内部触发的事件（比如选中表单行为等）
        private void PDFViewer_WidgetClickHander(object sender, WidgetArgs e)
        {

        }

        #endregion

        #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.PDFViewer, out PDFViewer);

            BindingFormHandler();
        }

        private void BindingFormHandler()
        {
            if(PDFViewer != null)
            {
                PDFViewer.WidgetClickHander -= PDFViewer_WidgetClickHander;
                PDFViewer.WidgetClickHander += PDFViewer_WidgetClickHander;
            }
        }
        #endregion
    }
}