PDFOffice_Windows_exe/PDF Office/ViewModels/TipContent/FileRestrictedTipViewModel.cs

using ComPDFKitViewer.PdfViewer;
using PDF_Office.EventAggregators;
using PDF_Office.Helper;
using PDF_Office.Model;
using Prism.Commands;
using Prism.Events;
using Prism.Mvvm;
using Prism.Regions;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static Dropbox.Api.Files.ThumbnailMode;
using static PDF_Office.Model.Dialog.ToolsDialogs.SaftyDialogs.DeleteSafetySettintgsModel;

namespace PDF_Office.ViewModels.TipContent
{
    public class FileRestrictedTipViewModel : BindableBase, INavigationAware
    {
        public string unicode = null;
        public IEventAggregator eventAggregator;
        public IDialogService DialogService;

        private CPDFViewer PDFViewer;

        public DelegateCommand CloseTipCommand { get; set; }
        public DelegateCommand RestrictCommand { get; set; }
        public FileRestrictedTipViewModel(IEventAggregator eventAggregator, IDialogService dialogService)
        {
            this.eventAggregator = eventAggregator;
            this.DialogService = dialogService;
            unicode = App.mainWindowViewModel.SelectedItem.Unicode;
            CloseTipCommand = new DelegateCommand(CloseTip);
            RestrictCommand = new DelegateCommand(Restrict);
        }

        public void CloseTip()
        {
            this.eventAggregator.GetEvent<ShowTipEvent>().Publish(new ShowTipEventArgs() { enumTipKind = EnumTipKind.StatusNone, Unicode = unicode });
        }

        public void Restrict()
        {
            VerifyPasswordResult result = SecurityHelper.VerifyPasswordByPasswordKind(PDFViewer.Document, EnumPasswordKind.StatusPermissionsPassword, DialogService);
            if (result.IsDiscryptied)
            {
                if (result.Password != null)
                {
                    string filePath = PDFViewer.Document.FilePath;
                    PDFViewer.ReloadDocument();
                    PDFViewer.Document.UnlockWithPassword(result.Password);
                }
                ///TODO:
                ///此处填入需要执行的代码
            this.eventAggregator.GetEvent<ShowTipEvent>().Publish(new ShowTipEventArgs() { enumTipKind = EnumTipKind.StatusNone, Unicode = unicode });

            }
        }

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

        public void OnNavigatedFrom(NavigationContext navigationContext)
        {
        }

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