startLogin held both guards (the module-level loginInFlight and the
caller's React-level loginGuard) across the post-failure errorDialog
await. The native Windows MessageBox disables its parent for its whole
lifetime while the main window's WindowClosing hook hides instead of
closing, so the dialog promise can outlive the click — and even a clean
dismissal kept the guards held until the promise settled. Until then
every later Connect click and tray trigger-login was silently dropped at
the guard check, so the only way back was a client restart.
Release both guards the instant the flow itself settles, before the
dialog: startLogin now takes an onSettled callback fired in its finally
(driveLogin releases loginGuard through it), and the errorDialog await
moved out of the try/finally so no guard is ever gated on the dialog.
A native Windows MessageBox attached to a parent window disables that
window (WS_DISABLED) for its lifetime and re-enables it on dismissal.
When the parent is the main window — whose WindowClosing hook hides
instead of closes — the enable/hide sequence races and leaves the window
unable to process its close (X) button afterwards, so e.g. a rejected
login error dialog left the main window stuck open.
Route all native dialogs through src/lib/dialogs.ts, which forces
Detached: true on Windows (NULL owner, no window ever disabled) and is a
no-op on macOS/Linux (keeps the attached sheet-style presentation).
Two follow-ups to the "hold NeedsLogin during the SSO browser wait" change.
Both target the visible state churn the tray showed during the auto-login
handoff (Connect / profile-switch lands on NeedsLogin -> the UI's startLogin
kicks off the SSO flow) and the broken recovery after the user dismisses the
browser-login popup with the window's X.
Background
----------
When a connect attempt lands on NeedsLogin, the UI's startLogin() drives the
SSO flow: Connection.Login() -> (NeedsSSOLogin) open the browser-login popup
-> Connection.WaitSSOLogin() blocks until the browser leg completes. The tray
and the React status page both paint the raw daemon status, so any transient
state the daemon publishes during this handoff is visible as a flicker.
Previously the handoff churned the daemon status through
NeedsLogin -> Idle -> Connecting -> NeedsLogin
which read as a flicker on the tray icon and the status dot. Two distinct
sources produced the two intermediate states:
* Idle came from the UI's defensive cli.Down() at the top of
Connection.Login (services/connection.go): it tore the engine
down before every login to dislodge a possibly-parked
WaitSSOLogin, emitting a StatusIdle on the way.
* Connecting came from server.go Login() unconditionally setting
StatusConnecting before deciding whether the request is an
SSO flow (which immediately returns NeedsLogin) or a
setup-key flow (which actually dials Management).
Changes
-------
1. server.go Login(): only set StatusConnecting on the setup-key path, where
we are about to dial Management with the key and the Connecting paint is
meaningful. The SSO path returns NeedsLogin and parks on the browser leg,
so it no longer flashes Connecting first. Removes the Connecting blip.
2. services/connection.go Login(): drop the pre-Login cli.Down(). The daemon
already dislodges a pending WaitSSOLogin at Login entry (actCancel), and an
abandoned browser leg is now torn down by cancelling the WaitSSOLogin RPC
(see 3/4). Removing the Down removes the Idle blip on every login.
3. MainConnectionStatusSwitch.tsx startLogin(): on cancel (the browser-login
popup's Cancel button or its window X, both routed through
EventBrowserLoginCancel), cancel the in-flight WaitSSOLogin gRPC call via
waitPromise.cancel() instead of issuing a heavy Connection.Down(). The
daemon ties the wait to this call's context, so cancelling the call ends
the wait cleanly with no engine teardown and no Idle paint.
4. server.go WaitSSOLogin(): when the wait unblocks with context.Canceled and
the cancellation came from our caller (callerCtx.Err() != nil — the client
cancelled the RPC or went away), clear the cached oauthAuthFlow so a fresh
Login starts a new device code instead of reusing the abandoned one. The
entry NeedsLogin stays in place, so a reattaching client still shows the
login affordance. An internal abort (actCancel fired by a newer
Login/WaitSSOLogin while our callerCtx is still live) is left untouched so
the new owner's flow is not clobbered.
Effect
------
The auto-login handoff now goes Connected -> Connecting -> NeedsLogin and
holds, with no Idle/Connecting flicker in between. Dismissing the browser-login
popup with X now recovers the same way as the Cancel button: the WaitSSOLogin
RPC is cancelled, the stale OAuth flow is cleared, and the next connect opens a
fresh browser-login window instead of getting stuck.
