PDFOffice_Windows_exe/PDF Office/Views/HomePanel/PDFTools/HomeFilesContent.xaml.cs

using ComPDFKit.PDFDocument;
using PDF_Master.Helper;
using PDF_Master.Model;
using PDF_Master.Properties;
using PDF_Master.ViewModels.HomePanel.PDFTools;
using System;
using System.Diagnostics;
using System.IO;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Interop;

namespace PDF_Master.Views.HomePanel.PDFTools
{
    /// <summary>
    /// Interaction logic for HomeFilesContent
    /// </summary>
    public partial class HomeFilesContent : UserControl
    {

        private HomeFilesContentViewModel viewModel;

        private IDropTargetHelper dropHelper;

        public HomeFilesContent()
        {
            InitializeComponent();
            viewModel= DataContext as HomeFilesContentViewModel;
        }

        private void StackPanel_SizeChanged(object sender, System.Windows.SizeChangedEventArgs e)
        {
            if (Gridroot.ActualWidth<638)
            {
                OpenFileStackPanel.Margin=new System.Windows.Thickness(0,0,0,0);
                viewModel.CreatGridRowIndex = 1;
                viewModel.CreatGridColumnIndex = 0;
            }
            else
            {
                OpenFileStackPanel.Margin = new System.Windows.Thickness(0, 0, 20, 0);
                viewModel.CreatGridRowIndex = 0;
                viewModel.CreatGridColumnIndex = 1;
            }
        }
        private  void Grid_Drop(object sender, DragEventArgs e)
        {
            DropColorBorder.Visibility = Visibility.Hidden;
            NormalColorBorder.Visibility = Visibility.Visible;
            try
            {
                Point iconPoint = e.GetPosition(this);
                dropHelper?.Drop((System.Runtime.InteropServices.ComTypes.IDataObject)e.Data, ref iconPoint, e.Effects);
            }
            catch
            {

            }
            string dropFile = "Drop";
            if (e.Data.GetDataPresent(System.Windows.DataFormats.FileDrop))
            {
                //BtnBlank.IsEnabled = true;
                int count = ((System.Array)e.Data.GetData(System.Windows.DataFormats.FileDrop)).Length;
                for (int i = 0; i < count; i++)
                {
                    dropFile = ((System.Array)e.Data.GetData(System.Windows.DataFormats.FileDrop)).GetValue(i).ToString();
                    
                }
            }
        }
        private void MainPage_DragEnter(object sender, DragEventArgs e)
        {
            DropColorBorder.Visibility = Visibility.Visible;
            NormalColorBorder.Visibility = Visibility.Hidden;
            //BtnBlank.IsEnabled = false;
            //页面编辑和缩略图
            if ((e.OriginalSource as Image) != null)
                return;
            try
            {
                if (dropHelper == null)
                {
                    dropHelper = Activator.CreateInstance(Type.GetTypeFromCLSID(new Guid("4657278A-411B-11D2-839A-00C04FD918D0"))) as IDropTargetHelper;
                }
                Point iconPoint = e.GetPosition(this);
                dropHelper?.DragEnter(new WindowInteropHelper(Window.GetWindow(this)).Handle, (System.Runtime.InteropServices.ComTypes.IDataObject)e.Data, ref iconPoint, e.Effects);
            }
            catch
            {

            }

        }

        private void MainPage_DragOver(object sender, DragEventArgs e)
        {

            if ((e.OriginalSource as Image) != null)
                return;
            try
            {
                Point iconPoint = e.GetPosition(this);
                dropHelper?.DragOver(ref iconPoint, e.Effects);
            }
            catch
            {

            }

        }

        private void MainPage_DragLeave(object sender, DragEventArgs e)
        {
            DropColorBorder.Visibility = Visibility.Hidden;
            NormalColorBorder.Visibility = Visibility.Visible;
            // BtnBlank.IsEnabled = true;
            if ((e.OriginalSource as Image) != null)
                return;
            try
            {
                dropHelper?.DragLeave();
            }
            catch
            {

            }

        }

        private void Grid_MouseEnter(object sender, System.Windows.Input.MouseEventArgs e)
        {
            DropColorBorder.Visibility = Visibility.Visible;
            NormalColorBorder.Visibility = Visibility.Hidden;
        }

        private void Grid_MouseLeave(object sender, System.Windows.Input.MouseEventArgs e)
        {
            DropColorBorder.Visibility = Visibility.Hidden;
            NormalColorBorder.Visibility = Visibility.Visible;
        }
    }
}