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focalboard/win-wpf/Focalboard/Webview2Installer.cs

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2021-03-01 21:36:36 +02:00
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.IO;
using System.Net;
using System.Windows;
using Windows.Storage;
namespace Focalboard {
class Webview2Installer {
public int exitCode = -1;
public int downloadProgress = 0;
public delegate void InstallerHandler(Webview2Installer sender, EventArgs e);
public event InstallerHandler InstallProgress;
public event InstallerHandler InstallCompleted;
private string filePath;
public Webview2Installer() {
const string filename = "MicrosoftEdgeWebview2Setup.exe";
var downloadsFolder = UserDataPaths.GetDefault().Downloads;
filePath = Path.Combine(downloadsFolder, filename);
}
public void DownloadAndInstall() {
const string url = "https://go.microsoft.com/fwlink/p/?LinkId=2124703";
var uri = new Uri(url);
try {
if (File.Exists(filePath)) {
File.Delete(filePath);
}
WebClient wc = new WebClient();
wc.DownloadFileAsync(uri, filePath);
wc.DownloadProgressChanged += new DownloadProgressChangedEventHandler(wc_DownloadProgressChanged);
wc.DownloadFileCompleted += new AsyncCompletedEventHandler(wc_DownloadFileCompleted);
} catch (Exception ex) {
MessageBox.Show(ex.Message.ToString());
}
}
private void wc_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e) {
downloadProgress = e.ProgressPercentage;
InstallProgress?.Invoke(this, e);
}
private void wc_DownloadFileCompleted(object sender, AsyncCompletedEventArgs e) {
if (e.Error == null) {
var proc = Process.Start(filePath);
proc.EnableRaisingEvents = true;
proc.Exited += Proc_Exited;
} else {
MessageBox.Show($"Unable to download webview2 installer, please check your Internet connection. ERROR: {e.Error.Message}", "Download failed");
}
}
private void Proc_Exited(object sender, EventArgs e) {
var proc = (Process)sender;
exitCode = proc.ExitCode;
InstallCompleted?.Invoke(this, e);
}
}
}