PDFOffice_Windows_exe/PDF Office/Views/HomePanel/RecentFiles/RecentFilesContent.xaml.cs

using ComPDFKitViewer.PdfViewer;
using Microsoft.Win32;
using PDF_Office.CustomControl;
using PDF_Office.Helper;
using PDF_Office.Properties;
using PDF_Office.ViewModels.HomePanel.RecentFiles;
using PDFSettings.Settings;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.IO;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Interop;
using System.Windows.Navigation;
using winform = System.Windows.Forms;

namespace PDF_Office.Views.HomePanel.RecentFiles
{
    public partial class RecentFilesContent : UserControl
    {
        private RecentFilesContentViewModel ViewModel => DataContext as RecentFilesContentViewModel;
        public RecentFilesContent()
        {
            InitializeComponent();
        }

        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            RecentFilesList.SelectedItem = null;
            ShowListViewContentUI();
        }

        private void SetLangText()
        {

        }

        private void InitContextMenu()
        {

        }

        private void InitUI()
        {

        }


        #region UI
        #region 列表和网格模式
        private void ListModeBtn_Click(object sender, RoutedEventArgs e)
        {
            SwitchFilesMode(sender);

            if (BtnListMode.IsChecked == false)
                BtnListMode.IsChecked = true;
        }

        private void GridModeBtn_Click(object sender, RoutedEventArgs e)
        {
            SwitchFilesMode(sender);

            if (BtnGridMode.IsChecked == false)
                BtnGridMode.IsChecked = true;
        }

        private void SwitchFilesMode(object sender)
        {
            try
            {
                var btn = sender as CustomIconToggleBtn;
                switch (btn.Tag.ToString())
                {
                    case "ListMode":
                        BtnGridMode.IsChecked = false;

                        GridRecentFilesList.Visibility = Visibility.Collapsed;
                        RecentFilesList.Visibility = Visibility.Visible;
                        RecentFilesList.SelectedItems.Clear();
                        if (GridRecentFilesList.SelectedItems.Count > 0)
                        {
                            for (int i = 0; i < GridRecentFilesList.SelectedItems.Count; i++)
                            {
                                RecentFilesList.SelectedItems.Add(GridRecentFilesList.SelectedItems[i]);
                            }

                        }
                        
                        break;

                    case "GridMode":
                        BtnListMode.IsChecked=false;

                        GridRecentFilesList.Visibility = Visibility.Visible;
                        RecentFilesList.Visibility = Visibility.Collapsed;
                        GridRecentFilesList.SelectedItems.Clear();
                        if (RecentFilesList.SelectedItems.Count > 0)
                        {
                            for (int i = 0; i < RecentFilesList.SelectedItems.Count; i++)
                            {
                                GridRecentFilesList.SelectedItems.Add(RecentFilesList.SelectedItems[i]);
                            }

                        }
                        
                        break;
                }
              
            }
            catch { }
        }

        private void ShowListViewContentUI()
        {
            if (RecentFilesList.Items.Count == 0)
            {
                BlankContentPanel.Visibility = Visibility.Visible;
                RecentFilesList.Visibility = Visibility.Collapsed;
                PnlRightBtns.Visibility = Visibility.Collapsed;
            }
            else
            {
                RecentFilesList.Visibility = Visibility.Visible;
                PnlRightBtns.Visibility = Visibility.Visible;
                BlankContentPanel.Visibility = Visibility.Collapsed;
            }
        }

        #endregion

        private void RecentFilesList_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
           
        }

        private void GridRecentFilesList_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
        
        }

        private void ContextMenu_Opened(object sender, RoutedEventArgs e)
        {
           
        }

        /// <summary>
        /// 未被选中的项目，或只有一个被选中的项
        /// </summary>
        private void showMoreContexMenu(ContextMenu contexMenu)
        {
            foreach (var item in contexMenu.Items)
            {
                var menuitem = item as MenuItem;
                menuitem.Visibility = Visibility.Visible;
               
            }
        }

        private void ListViewItem_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {
            Trace.WriteLine("Preview MouseRightButtonDown");
            e.Handled = true;
        }
        #endregion

        #region Events
       

        private void DeleteMenuItem_Click(object sender, RoutedEventArgs e)
        {
            if (RecentFilesList.SelectedItems == null || RecentFilesList.SelectedItems.Count == 0)
            {
                var item = (sender as MenuItem).DataContext as OpenFileInfo;
                if (item != null)
                {
                    ViewModel?.RemoveFileItemCommand.Execute(item);
                }
            }
            else
            {
                ViewModel?.RemoveFilesFromContainerCommand.Execute(RecentFilesList.SelectedItems);
            }

        }

        private void DeleteItemHandler_Click(object sender, RoutedEventArgs e)
        {
            DeleteFileItem(sender);
        }

        private bool IsSelectedFile(object sender)
        {

            return true;
        }

        private void DeleteFileItem(object sender)
        {
            if (RecentFilesList.SelectedItems.Count > 1)
            {
                var isSelected = IsSelectedFile(sender);
                if (!isSelected)
                {
                    ShowListViewContentUI();
                    return;
                }

                string msg = "";
                if (RecentFilesList.SelectedItems.Count == RecentFilesList.Items.Count)
                    msg = "RecentFiles_AllClearMsg";
                else
                    msg = "RecentFiles_SelectedClearMsg";

                //if (MessageBoxEx.Show(msg, "", winform.MessageBoxButtons.OKCancel, winform.MessageBoxIcon.Question) == winform.DialogResult.OK)
                //    RemoveRecentFilesFrom(2);
                //else
                //    return;
            }
            else
            {
                if (MessageBoxEx.Show("RecentFiles_ClearMsg", "", winform.MessageBoxButtons.OKCancel, winform.MessageBoxIcon.Question) != winform.DialogResult.OK)
                    return;

                OpenFileInfo file = null;
                if ((sender as MenuItem) != null)
                {
                    var menuItem = sender as MenuItem;
                    file = menuItem.DataContext as OpenFileInfo;
                    if (file != null)
                    {
                        SettingHelper.RemoveRecentOpenFile(file.FilePath);
                      //  RecentFilesGroup.Remove(file);
                    }
                }
                else if ((sender as Button) != null)
                {
                    var btn = sender as Button;
                    file = btn.DataContext as OpenFileInfo;
                    if (file != null)
                    {
                        SettingHelper.RemoveRecentOpenFile(file.FilePath);
                      //  RecentFilesGroup.Remove(file);
                    }

                }
            }
            ShowListViewContentUI();
        }

        private void RecentFilesList_PreviewMouseDoubleClick(object sender, MouseButtonEventArgs e)
        {
            var item = sender as ListViewItem;
            if (item != null && (item.DataContext as OpenFileInfo) != null)
            {
               
                var fileInfo = item.DataContext as OpenFileInfo;
                if(fileInfo != null)
                {
                    ViewModel?.OpenFilesCommand.Execute(fileInfo);
                }
                if (File.Exists(fileInfo.FilePath))
                {
                    //MainWindow parentWindow = Window.GetWindow(this) as MainWindow;

                    //string[] filePath = new string[1];
                    //filePath[0] = fileInfo.FilePath;
                    //parentWindow.LoadPdfViewer(filePath);
                   // ViewModel?.OpenFilesCommand.Execute(fileInfo);
                }
                else
                {
                   // ViewModel?.RemoveFilesCommand.Execute(fileInfo);
                    ShowListViewContentUI(); 
                }

            }

        }

        private async void OpenFiles_Click(object sender, RoutedEventArgs e)
        {

            var dlg = new OpenFileDialog();
            dlg.Multiselect = true;
            dlg.Filter = Properties.Resources.OpenDialogFilter;

            if (dlg.ShowDialog() == true)
            {
                await Task.Delay(3);
                MainWindow parentWindow = Window.GetWindow(this) as MainWindow;
                parentWindow.LoadPdfViewer(dlg.FileNames);
            }
        }
        #endregion

   
        private void FilePathMenuItem_Click(object sender, RoutedEventArgs e)
        {

        }

      
    }
}