PDFOffice_Windows_exe/PDF Office/Views/BOTA/BookmarkContent.xaml.cs

using PDF_Office.Helper;
using PDF_Office.ViewModels.BOTA;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace PDF_Office.Views.BOTA
{
    /// <summary>
    /// BookmarkContent.xaml 的交互逻辑
    /// </summary>
    public partial class BookmarkContent : UserControl
    {
        private BookmarkContentViewModel viewModel = null;
        private ListBoxItem histotyListBoxItem = null;

        public BookmarkContent()
        {
            InitializeComponent();
            viewModel = this.DataContext as BookmarkContentViewModel;
        }

        private void TxtTitleInput_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            if (sender is TextBox && IsLoaded)
            {
                TextBox textBox = sender as TextBox;
                if (textBox.Visibility == Visibility.Visible)
                {
                    textBox.Focus();
                }
            }
        }

        private void ListViewItem_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            object[] objects = new object[] { sender, e };
            TextBlock textBlock = null;
            ListBoxItem listBoxItem = (sender as ListBoxItem);
            if (e.LeftButton == MouseButtonState.Pressed)
            {
                if (e.ClickCount >= 2)
                {
                    histotyListBoxItem = listBoxItem;
                    if (e.OriginalSource is TextBlock)
                    {
                        textBlock = (TextBlock)e.OriginalSource;

                        if (textBlock != null)
                        {
                            listBoxItem.IsSelected = true;
                            listBoxItem.IsSelected = true;
                            listBoxItem.Focus();
                            textBlock.Visibility = Visibility.Collapsed;
                            TextBox textBox = CommonHelper.FindVisualChild<TextBox>(listBoxItem);
                            textBox.Dispatcher.BeginInvoke(new Action(() =>
                            {
                                textBox.Focus();
                                textBox.SelectAll();
                            }));

                            //textBox.PreviewMouseDown += new MouseButtonEventHandler(TxtTitleInput_PreviewMouseLeftButtonDown);
                            //TxtTitleInput_PreviewMouseLeftButtonDown(textBox, mouse);
                        }
                    }
                }
                else if (e.ClickCount == 1)
                {
                    //var pos = e.GetPosition(histotyListBoxItem);
                    //var result = VisualTreeHelper.HitTest(BookMarkListView, pos);
                    //if (result == null)
                    //{
                    //    histotyListBoxItem.IsSelected = false;
                    //    textBlock = CommonHelper.FindVisualChild<TextBlock>(histotyListBoxItem);
                    //    textBlock.Visibility = Visibility.Visible;
                    //    textBlock.Focusable = true;
                    //}
                    if (histotyListBoxItem != listBoxItem)
                    {
                        if (histotyListBoxItem != null)
                        {
                            histotyListBoxItem.IsSelected = false;
                            textBlock = CommonHelper.FindVisualChild<TextBlock>(histotyListBoxItem);
                            textBlock.Visibility = Visibility.Visible;
                            textBlock.Focusable = true;
                        }
                    }

                    viewModel.ListViewItemMouseDownCommand.Execute(sender);
                }
            }
            else if (e.RightButton == MouseButtonState.Pressed)
            {
                listBoxItem.IsSelected = true;
                listBoxItem.Focus();
            }
        }

        private void ListViewItem_LostFocus(object sender, RoutedEventArgs e)
        {
            ListBoxItem listItem = sender as ListBoxItem;
            if (listItem != null)
            {
                viewModel.LostFocusCommand.Execute(listItem);
                TextBlock textBox = CommonHelper.FindVisualChild<TextBlock>(listItem);
                if (textBox.Visibility == Visibility.Collapsed)
                {
                    listItem.IsSelected = true;
                }
                else
                {
                    listItem.IsSelected = false;
                }
            }
        }

        private void BookMarkListView_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            var pos = e.GetPosition(BookMarkListView);

            var result = VisualTreeHelper.HitTest(BookMarkListView, pos);
            if (result != null)
            {
                //获取当前鼠标指针下的容器
                var listBoxItem = CommonHelper.FindVisualParent<ListBoxItem>(result.VisualHit);
                if (listBoxItem == null)
                {
                    if (BookMarkListView.SelectedItem != null)
                    {
                        ListBoxItem item = (ListBoxItem)(BookMarkListView.ItemContainerGenerator.ContainerFromItem(BookMarkListView.SelectedItem));
                        item.IsSelected = false;
                        TextBlock box = CommonHelper.FindVisualChild<TextBlock>(item);
                        box.Visibility = Visibility.Visible;
                        BookMarkListView.SelectedItems.Clear();
                    }
                    if (histotyListBoxItem != null)
                    {
                        var pos1 = e.GetPosition(histotyListBoxItem);
                        var result1 = VisualTreeHelper.HitTest(BookMarkListView, pos1);
                        if (result1 == null)
                        {
                            histotyListBoxItem.IsSelected = false;
                            TextBlock textBlock = CommonHelper.FindVisualChild<TextBlock>(histotyListBoxItem);
                            textBlock.Visibility = Visibility.Visible;
                            textBlock.Focusable = true;
                        }
                    }
                }
                else
                {
                    listBoxItem.Focus();
                }
            }
            BookMarkListView.Focus();
        }
    }
}