mirror of
https://github.com/wmjordan/PDFPatcher.git
synced 2026-10-22 08:26:03 +08:00
WMJ
100 lines
3.1 KiB
C#
100 lines
3.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using PDFPatcher.Common;
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namespace PDFPatcher.Functions
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{
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public partial class UpdateForm : Form
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{
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System.Net.WebClient _UpdateChecker;
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public UpdateForm () {
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InitializeComponent ();
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this.SetIcon (Properties.Resources.CheckUpdate);
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Load += (s, args) => {
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CheckNewVersion ();
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var i = AppContext.CheckUpdateInterval;
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_CheckUpdateIntervalBox.Select(i == 7 ? 0 : i == 14 ? 1 : i == 30 ? 2 : 3);
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};
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FormClosed += (s, args) => {
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if (_UpdateChecker != null) {
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_UpdateChecker.Dispose ();
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}
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};
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_HomePageButton.Click += (s, args) => {
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CommonCommands.VisitHomePage ();
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};
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_DownloadButton.Click += (s, args) => {
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System.Diagnostics.Process.Start (_DownloadButton.Tag.ToString ());
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};
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_CheckUpdateIntervalBox.SelectedIndexChanged += (s, args) => {
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switch (_CheckUpdateIntervalBox.SelectedIndex) {
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case 0: AppContext.CheckUpdateInterval = 7; break;
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case 1: AppContext.CheckUpdateInterval = 14; break;
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case 2: AppContext.CheckUpdateInterval = 30; break;
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default: AppContext.CheckUpdateInterval = Int32.MaxValue; break;
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}
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if (AppContext.CheckUpdateInterval != Int32.MaxValue) {
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AppContext.CheckUpdateDate = DateTime.Today + TimeSpan.FromDays(AppContext.CheckUpdateInterval);
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}
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};
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}
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private void CheckNewVersion () {
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_UpdateChecker = new System.Net.WebClient ();
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_InfoBox.AppendLine ("正在检查新版本，请稍候……");
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_UpdateChecker.DownloadDataCompleted += (s, args) => {
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_InfoBox.Clear ();
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if (args.Error != null) {
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_InfoBox.AppendText ("检查新版本失败：" + args.Error.Message);
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goto Exit;
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}
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try {
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var x = new System.Xml.XmlDocument();
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x.Load(new System.IO.MemoryStream(args.Result));
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CheckResult(x);
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}
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catch (Exception) {
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Common.FormHelper.ErrorBox ("版本信息文件格式错误，请稍候重试。");
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}
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Exit:
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_UpdateChecker.Dispose ();
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_UpdateChecker = null;
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};
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_UpdateChecker.DownloadDataAsync (new Uri (Constants.AppUpdateFile));
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}
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private void CheckResult(System.Xml.XmlDocument x) {
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var r = x.DocumentElement;
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if (r == null || r.Name != Constants.AppEngName) {
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_InfoBox.SelectionColor = Color.Red;
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_InfoBox.AppendLine("版本信息文件格式错误，请稍候重试。");
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}
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var v = r.GetAttribute("version");
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var d = r.GetAttribute("date");
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var u = r.GetAttribute("url");
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var c = r.SelectSingleNode("content");
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if (new Version(ProductVersion) < new Version(r.GetAttribute("version"))) {
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_InfoBox.SelectionColor = Color.Blue;
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_InfoBox.AppendLine(String.Concat("发现新版本：", v, " ", d));
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_InfoBox.AppendLine(c.InnerText);
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_InfoBox.SelectionStart = 0;
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if (u.Length > 0) {
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_DownloadButton.Enabled = true;
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_DownloadButton.Tag = u;
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}
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}
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else {
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_InfoBox.AppendLine(String.Join("\n", new string[] {
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"未发现新版本。", "服务器上发布的版本是：", v + " " + d
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}));
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}
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}
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}
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}
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