PDFOffice_Windows_exe/PDF Office/ViewModels/Dialog/BOTA/AddAnnotationDialogViewModel.cs

using ComPDFKit.PDFAnnotation;
using ComPDFKitViewer;
using ComPDFKitViewer.AnnotEvent;
using DryIoc;
using Microsoft.Office.Interop.Word;
using PDF_Office.Helper;
using PDF_Office.Model;
using PDF_Office.Model.BOTA;
using Prism.Commands;
using Prism.Mvvm;
using Prism.Regions;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Annotations;
using System.Windows.Controls;
using System.Windows.Markup;
using System.Windows.Media;

namespace PDF_Office.ViewModels.Dialog.BOTA
{
    public class AddAnnotationDialogViewModel : BindableBase, IDialogAware
    {
        private string title = "添加笔记";

        public string Title
        {
            get { return title; }
            set { SetProperty(ref title, value); }
        }

        public event Action<IDialogResult> RequestClose;

        //private string markupContent;

        //public string MarkupContent
        //{
        //    get { return markupContent; }
        //    set
        //    {
        //        SetProperty(ref markupContent, value);
        //    }
        //}
        private string contentText;

        public string ContentText
        {
            get { return contentText; }
            set
            {
                SetProperty(ref contentText, value);
            }
        }

        private string annotationName;

        public string AnnotationName
        {
            get { return annotationName; }
            set
            {
                SetProperty(ref annotationName, value);
            }
        }

        private Visibility tipVisibility;

        public Visibility TipVisibility
        {
            get { return tipVisibility; }
            set
            {
                SetProperty(ref tipVisibility, value);
            }
        }

        public AnnotationHandlerEventArgs Annotation { get; set; }
        public AnnotAttribEvent AnnotEvent { get; set; }

        public DelegateCommand CreateCommnad { get; set; }
        public DelegateCommand CancelCommand { get; set; }

        public DelegateCommand<Object> LostFocusCommand { get; set; }

        public AddAnnotationDialogViewModel()
        {
            CancelCommand = new DelegateCommand(CancelEvent);
            CreateCommnad = new DelegateCommand(CreateEvent);
            LostFocusCommand = new DelegateCommand<object>(LostFocusEvent);
        }

        private void LostFocusEvent(object obj)
        {
            if (obj is CompositeCommandParameter composite)
            {
                if (composite.Parameter is TextBox textBox)
                {
                    Annotation.Content = textBox.Text;
                    AnnotEvent?.UpdateAttrib(AnnotAttrib.NoteText, textBox.Text);
                    AnnotEvent?.UpdateAnnot();
                }
            }
        }

        private void CreateEvent()
        {
            DialogParameters valuePairs = new DialogParameters();
            valuePairs.Add(ParameterNames.Annotation, Annotation);
            valuePairs.Add(ParameterNames.AnnotEvent, AnnotEvent);
            RequestClose.Invoke(new DialogResult(ButtonResult.OK, valuePairs));
        }

        private void CancelEvent()
        {
            RequestClose.Invoke(new DialogResult(ButtonResult.Cancel));
        }

        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {
        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
            AnnotationHandlerEventArgs annotation;
            parameters.TryGetValue<AnnotationHandlerEventArgs>(ParameterNames.Annotation, out annotation);

            if (annotation != null)
            {
                Annotation = annotation;
                Dictionary<AnnotAttrib, object> annotAttribsList = annotation.AnnotHandlerEventArgs.GetAnnotAttrib();
                AnnotEvent = AnnotAttribEvent.GetAnnotAttribEvent(annotation.AnnotHandlerEventArgs, annotAttribsList);

                ContentText = annotation.Content;
                AnnotationName = "页面" + (annotation.PageIndex + 1).ToString();
                if (string.IsNullOrEmpty(ContentText))
                {
                    TipVisibility = Visibility.Visible;
                }
                else
                {
                    TipVisibility = Visibility.Collapsed;
                }
                return;
            }
        }
    }
}