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30 lines
1.4 KiB
Markdown
30 lines
1.4 KiB
Markdown
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# Launcher Slow-Startup And Startup Visual Addendum
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## New startup timing contract
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- `30s` is a soft timeout, not a failure threshold.
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- After `30s`, if the desktop process is still alive or Public IPC is connected, Launcher must stay in a waiting state and must not start another host process.
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- `120s` is the hard timeout.
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- Before returning `desktop_not_visible`, Launcher must attempt one foreground recovery through `ActivateMainWindowAsync()`.
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## Startup attempt de-duplication
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- Launcher persists the current startup attempt in `%LocalAppData%\LanMountainDesktop\.launcher\state\startup-attempt.json`.
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- A second Launcher process must attach to a live pending attempt instead of calling `Process.Start()` again.
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- Closing the splash window does not cancel startup; it transitions the attempt into detached waiting and preserves recovery state for the next Launcher run.
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## Startup visual modes
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- `EnableSlideTransition = true` forces `StartupVisualMode.SlideSplash` and automatically disables fade.
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- `EnableSlideTransition = false && EnableFadeTransition = false` resolves to `StartupVisualMode.StaticSplash`.
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- `EnableSlideTransition = false && EnableFadeTransition = true` resolves to `StartupVisualMode.Fade`.
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## UX safeguards
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- If the host process is still alive at failure time, the failure dialog must prefer:
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- `Activate`
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- `Wait`
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- `Open Logs`
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- `Exit`
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- Retry is only valid when Launcher is not about to create a duplicate desktop process.
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