220 lines
9.9 KiB
C#
220 lines
9.9 KiB
C#
using Lskj.Business.Impl;
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using Lskj.Control;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using System.Web;
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using System.Windows.Forms;
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using Xilium.CefGlue;
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using Lskj.Control.Model;
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using System.Runtime.InteropServices;
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namespace Lskj.Control.BrowserSetting
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{
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public class BsDownloadHandler : CefDownloadHandler
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{
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[DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Auto)]
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public static extern IntPtr GetParent(IntPtr hWnd);
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private BsClient BsClient;
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public BsDownloadHandler(BsClient bsClient)
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{
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BsClient = bsClient;
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}
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protected override void OnBeforeDownload(CefBrowser browser, CefDownloadItem downloadItem, string suggestedName, CefBeforeDownloadCallback callback)
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{
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//callback.Continue(string.Empty, true);
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try
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{
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string tipMsg = string.Empty; int vsNum = 0;
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if (string.IsNullOrWhiteSpace(downloadItem.SuggestedFileName))
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{
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if (BsClient != null && BsClient.frmWebBrowser != null)
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{
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BsClient.frmWebBrowser.Invoke(new Action(() =>
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{
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MessageUtil.Show("当前文档类型不支持预览");
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}));
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}
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if (BsClient != null && BsClient.frmWebBrowser != null && BsClient.frmWebBrowser.Parent != null && BsClient.frmWebBrowser.Parent.Name.Equals("previewFrm"))
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{
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browser.GetHost().CloseBrowser();
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}
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else if (BsClient != null && BsClient.frmWebBrowser != null)
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{
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BsClient.frmWebBrowser.LoadUrl("file:///C:/Users/asus/Desktop/errorFileNotFound.html");//加载错误异常,文件不存在
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}
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return;
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}
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string[] webpaths = Regex.Split(downloadItem.Url, "fileRoot/", RegexOptions.IgnoreCase);
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string webpath = webpaths[webpaths.Length - 1];
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string szFilename = downloadItem.Url.Substring(downloadItem.Url.LastIndexOf('/') + 1);//简单处理文件名，实际中还需要单独处理，这里有BUG
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string SzFileName = HttpUtility.UrlDecode(szFilename);
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string[] szName = SzFileName.Split('/');
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string fileTitle = szName[szName.Length - 1];
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//downfile(e.Url, e.Filename, tempPath);
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if (fileTitle.Contains("?")) fileTitle = fileTitle.Substring(0, fileTitle.LastIndexOf('?'));
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DataRow rowItem = AttachImpl.GetTempletFile(fileTitle, webpath);
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string topname = downloadItem.SuggestedFileName.Substring(0, downloadItem.SuggestedFileName.LastIndexOf(".") - 1);
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bool isMultipleLoad = downloadItem.Url.Contains("downLoadTemp") && Regex.IsMatch(topname, @"^[+-]?\d*[.]?\d*$");
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if (downloadItem.Url.StartsWith("blob"))
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{
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callback.Continue(string.Empty, true);
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//Download(downloadItem.Url, fileTitle);
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//return;
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}
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else if (rowItem != null || isMultipleLoad)
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{
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try
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{
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bool success = rowItem != null ? AttachImpl.CheckAttachOperation(2, "", Convert.ToInt32(rowItem["fileId"]), "", 0, out tipMsg) == 1 : isMultipleLoad;
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if (success)
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{
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string ModuleCode = string.Empty;
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GetParentForm(browser, out ModuleCode);
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Download(downloadItem.Url, fileTitle, ModuleCode);
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return;
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}
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else
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{
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MessageBox.Show(tipMsg);
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//MessageUtil.Show(tipMsg);
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}
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}
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catch (Exception ex)
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{
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MessageBox.Show("下载失败！\r\n" + ex.Message);
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//MessageUtil.Show("下载失败！\r\n" + ex.Message);
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}
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}
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else
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{
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MessageBox.Show("未找到下载项");
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}
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//browser.GetHost().CloseBrowser();
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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}
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protected override void OnDownloadUpdated(CefBrowser browser, CefDownloadItem downloadItem, CefDownloadItemCallback callback)
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{
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//if (downloadItem.IsComplete)
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//{
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// MessageBox.Show("下载成功");
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// if (browser.IsPopup && !browser.HasDocument)
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// {
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// //browser.GetHost().ParentWindowWillClose();
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// browser.GetHost().CloseBrowser();
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// }
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//}
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//downloadItem.IsComplete
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//if (downloadItem.IsComplete) {
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// string tipMsg = string.Empty; int vsNum = 0;
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// DataRow rowItem = AttachImpl.GetTempletFile(downloadItem.SuggestedFileName);
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// string topname = downloadItem.SuggestedFileName.Substring(0, downloadItem.SuggestedFileName.LastIndexOf(".") - 1);
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// bool isMultipleLoad = downloadItem.Url.Contains("downLoadTemp") && Regex.IsMatch(topname, @"^[+-]?\d*[.]?\d*$");
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// if (rowItem != null || isMultipleLoad)
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// {
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// try
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// {
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// bool success = rowItem != null ? AttachImpl.CheckAttachOperation(2, "", Convert.ToInt32(rowItem["fileId"]), "", 0, out tipMsg) == 1 : isMultipleLoad;
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// if (success)
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// {
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// string szFilename = downloadItem.Url.Substring(downloadItem.Url.LastIndexOf('/') + 1);//简单处理文件名，实际中还需要单独处理，这里有BUG
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// string SzFileName = HttpUtility.UrlDecode(szFilename);
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// string[] szName = SzFileName.Split('/');
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// //downfile(e.Url, e.Filename, tempPath);
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// Download(downloadItem.Url, szName[szName.Length - 1]);
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// return;
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// }
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// else
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// {
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// MessageUtil.Show(tipMsg);
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// }
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// }
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// catch (Exception ex)
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// {
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// MessageUtil.Show("下载失败！\r\n" + ex.Message);
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// }
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// }
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// else
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// {
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// MessageUtil.Show("未找到下载项");
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// }
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// //browser.GetHost().CloseBrowser();
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//}
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}
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/// <summary>
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/// <para>说明：定义服务器文件地址，含文件名。客户端接收地址及文件名由客户端自行定义</para>
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/// <para>创建人：王一帆</para>
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/// <para>创建日期： </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="URL">The URL.</param>
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/// <param name="FileName">Name of the file.</param>
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public static void Download(string URL, string FileName,string ModuleCode)
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{
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FrmSelectDownload frmSelectDownload = new FrmSelectDownload();
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frmSelectDownload.URL = URL;
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frmSelectDownload.FileName = FileName;
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frmSelectDownload.ModelId = ModuleCode;
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frmSelectDownload.Show();
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//SaveFileDialog saveFileDialog = new SaveFileDialog();
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//saveFileDialog.FileName = FileName;
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//saveFileDialog.Title = "下载模板文件到";
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//saveFileDialog.RestoreDirectory = true;
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////点了保存按钮进入
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//if (saveFileDialog.ShowDialog() == DialogResult.OK)
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//{
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// string localFilePath = System.IO.Path.GetFullPath(saveFileDialog.FileName);//获得文件路径，含文件名
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// string fileNameExt = localFilePath.Substring(localFilePath.LastIndexOf("\\") + 1);//获取文件名，不带路径
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// string FilePath = localFilePath.Substring(0, localFilePath.LastIndexOf("\\"));//获取文件路径，不带文件名
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// FrmDownload frm = new FrmDownload(URL, FileName, localFilePath);
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// frm.Show();
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//}
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}
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/// <summary>
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/// 通过 CefBrowser 获取所在的 WinForms 窗口
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/// </summary>
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public static Form GetParentForm(CefBrowser browser,out string ModuleCode)
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{
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ModuleCode = "";
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try
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{
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if (browser == null) return null;
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IntPtr browserHandle = browser.GetHost().GetWindowHandle();
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if (browserHandle == IntPtr.Zero) return null;
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IntPtr parentHandle = GetParent(browserHandle);
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if (parentHandle == IntPtr.Zero) return null;
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System.Windows.Forms.Control control = System.Windows.Forms.Control.FromHandle(parentHandle);
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if (control != null && control.Parent != null && control.Parent.Parent != null)
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{
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ModuleCode = (control.Parent.Parent).Tag + "";
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}
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return control as Form;
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}
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catch (Exception ex)
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{
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}
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return null;
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}
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}
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}
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