focalboard/win-wpf/Focalboard/MainWindow.xaml.cs

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C#
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2021-03-01 20:36:36 +01:00
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
using System;
using System.Diagnostics;
using System.IO;
using System.Windows;
using System.Windows.Input;
using Microsoft.Web.WebView2.Core;
namespace Focalboard {
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window {
private int port {
get { return ((App)Application.Current).port; }
}
private string sessionToken {
get { return ((App)Application.Current).sessionToken; }
}
public MainWindow() {
Debug.WriteLine($"MainWindow()");
InitializeComponent();
RestoreWindowsState();
this.Loaded += MainWindow_Loaded;
this.Closing += MainWindow_Closing;
InitializeWebView();
}
private void MainWindow_Loaded(object sender, RoutedEventArgs e) {
Activate();
}
private void PromptToInstallWebview2() {
var dialogResult = MessageBox.Show(
"Focalboard requires the WebView2 runtime to be downloaded and installed. Install now?",
"Focalboard",
MessageBoxButton.YesNo,
MessageBoxImage.Information,
MessageBoxResult.OK,
MessageBoxOptions.DefaultDesktopOnly);
if (dialogResult == MessageBoxResult.Yes) {
installingLabel.Visibility = Visibility.Visible;
webView.Visibility = Visibility.Collapsed;
var installer = new Webview2Installer();
installer.InstallProgress += Installer_InstallProgress;
installer.InstallCompleted += Installer_InstallCompleted;
installer.DownloadAndInstall();
}
}
private void Installer_InstallProgress(Webview2Installer sender, EventArgs e) {
Application.Current.Dispatcher.Invoke(() => {
if (sender.downloadProgress < 100) {
installingLabel.Content = $"Downloading Webview2: {sender.downloadProgress}%";
} else {
installingLabel.Content = "Installing Webview2...";
}
});
}
private void Installer_InstallCompleted(Webview2Installer sender, EventArgs e) {
Application.Current.Dispatcher.Invoke(() => {
installingLabel.Content = "Webview2 install completed";
Activate();
if (sender.exitCode != 0) {
var message = $"Webview2 install FAILED with code {sender.exitCode}. Try again.";
MessageBox.Show(message, "Install failed");
}
// Reopen window
var window = new MainWindow();
window.Show();
Close();
});
}
private void SaveWindowState() {
try {
Properties.Settings.Default.WindowPosition = new System.Drawing.Point(
Convert.ToInt32(RestoreBounds.Location.X),
Convert.ToInt32(RestoreBounds.Location.Y));
Properties.Settings.Default.WindowSize = new System.Drawing.Size(
Convert.ToInt32(RestoreBounds.Size.Width),
Convert.ToInt32(RestoreBounds.Size.Height));
Properties.Settings.Default.WindowMaximized = (WindowState == WindowState.Maximized);
Properties.Settings.Default.Save();
} catch {
// Ignore errors, e.g. overflow
}
}
private void RestoreWindowsState() {
this.Left = Properties.Settings.Default.WindowPosition.X;
this.Top = Properties.Settings.Default.WindowPosition.Y;
this.Width = Math.Max(300, Properties.Settings.Default.WindowSize.Width);
this.Height = Math.Max(200, Properties.Settings.Default.WindowSize.Height);
if (Properties.Settings.Default.WindowMaximized) {
WindowState = WindowState.Maximized;
}
}
private void MainWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e) {
SaveWindowState();
}
async void InitializeWebView() {
string version = GetWebView2Version();
var isAltKeyPressed = (Keyboard.IsKeyDown(Key.LeftAlt) || Keyboard.IsKeyDown(Key.RightAlt));
if (version == "" || isAltKeyPressed) {
PromptToInstallWebview2();
return;
}
this.Title = $"Focalboard (port {port} WebView {version})";
// must create a data folder if running out of a secured folder that can't write like Program Files
var env = await CoreWebView2Environment.CreateAsync(
userDataFolder: Path.Combine(Path.GetTempPath(), "Focalboard")
);
await webView.EnsureCoreWebView2Async(env);
webView.ContentLoading += WebView_ContentLoading;
var url = String.Format("http://localhost:{0}", port);
webView.Source = new Uri(url);
}
private static string GetWebView2Version() {
try {
return CoreWebView2Environment.GetAvailableBrowserVersionString();
} catch (Exception) { return ""; }
}
private void WebView_ContentLoading(object sender, CoreWebView2ContentLoadingEventArgs e) {
// Set sessionId
string script = $"localStorage.setItem('sessionId', '{sessionToken}');";
webView.ExecuteScriptAsync(script);
}
}
}