PDFOffice_Windows_exe/PDF Office/ViewModels/EditTools/Redaction/RedactionContentViewModel.cs

using ComPDFKitViewer.PdfViewer;
using PDF_Office.EventAggregators;
using PDF_Office.Model;
using Prism.Commands;
using Prism.Events;
using Prism.Mvvm;
using Prism.Regions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;

namespace PDF_Office.ViewModels.EditTools.Redaction
{
    public class RedactionContentViewModel : BindableBase,INavigationAware
    {
        public IEventAggregator eventAggregator;

        public IRegionManager redactionRegion;

        private CPDFViewer PDFViewer;

        public string RedactionDocumentRegionName { get; set; }
        public string RedactionBottomBarRegionName { get; set; }

        public string RedactionDocumentName = "RedactionDocumentContent";

        public string Unicode = null;

        public DelegateCommand CloseEditToolCommand { get; set; }

        public RedactionContentViewModel(IRegionManager regionManager, IEventAggregator eventAggregator)
        {
            this.redactionRegion = regionManager;
            this.eventAggregator = eventAggregator;

            RedactionDocumentRegionName = Guid.NewGuid().ToString();
            Unicode = App.mainWindowViewModel.SelectedItem.Unicode;
            CloseEditToolCommand = new DelegateCommand(CloseEditTool);
        }

        public void CloseEditTool()
        {
            this.eventAggregator.GetEvent<CloseEditToolEvent>().Publish(new EnumCloseModeUnicode { Unicode = this.Unicode, Status = EnumCloseMode.StatusCancel });
        }

        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);
            NavigationParameters param = new NavigationParameters();
            param.Add(ParameterNames.PDFViewer, PDFViewer);
            redactionRegion.RequestNavigate(RedactionDocumentRegionName, RedactionDocumentName, param);
        }
    }
}