76 lines
2.7 KiB
C#
76 lines
2.7 KiB
C#
using System;
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using Avalonia;
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using PostIt.Services;
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namespace PostIt.Desktop;
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sealed class Program
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{
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// Initialization code. Don't use any Avalonia, third-party APIs or any
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// SynchronizationContext-reliant code before AppMain is called: things aren't initialized
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// yet and stuff might break.
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[STAThread]
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public static void Main(string[] args)
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{
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PlatformBootstrap.EnsureInitialized();
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// Short-circuit 2nd-instance launches (OS handing us the
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// postit://callback URL) BEFORE Avalonia spins up a window.
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// If we let Avalonia initialise, the new MainWindow flashes
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// open for a frame before OnFrameworkInitializationCompleted
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// detects the scheme and shuts down — visible to the user as
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// a second window with "Déconnecté" while the original
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// instance is still waiting on the named pipe.
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//
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// We only need the scheme prefix and the OS-supplied URL,
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// both of which are plain System.* / PostIt.Services —
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// nothing Avalonia-specific is touched here, so the rule
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// above is not violated.
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if (TryHandOffCustomSchemeUrl(args)) return;
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BuildAvaloniaApp()
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.StartWithClassicDesktopLifetime(args);
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}
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/// <summary>
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/// Detect a 2nd-instance launch (OS dispatching the postit:// URL
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/// after the user completed login in the system browser), forward
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/// the URL to the running instance over the named pipe, and exit
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/// before Avalonia can open a window. Returns true when the
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/// process should terminate without booting Avalonia.
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/// </summary>
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private static bool TryHandOffCustomSchemeUrl(string[] args)
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{
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var url = SchemeUrlDetector.FindCallbackUrl(args);
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if (url is null) return false;
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// Best-effort: try to send the URL to the running
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// instance via the named pipe. If the pipe isn't
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// answering (user double-clicked the link after closing
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// PostIt), there's no 1st instance to forward to — we
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// exit cleanly anyway rather than booting a stray
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// PostIt window that would just confuse the user.
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try
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{
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SingleInstance.TryHandOffAsync(url).GetAwaiter().GetResult();
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}
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catch
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{
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// Pipe errors are non-fatal for the 2nd-instance
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// hand-off — we still want to exit cleanly.
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}
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Environment.Exit(0);
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return true;
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}
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// Avalonia configuration, don't remove; also used by visual designer.
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public static AppBuilder BuildAvaloniaApp()
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=> AppBuilder.Configure<App>()
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.UsePlatformDetect()
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#if DEBUG
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.WithDeveloperTools()
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#endif
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.WithInterFont()
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.LogToTrace();
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}
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