Presence Detection
Understand whether this browser session is currently available, away, idle, hidden, or offline — page-local signals, not multi-user presence.
Signals
| Signal | Event / snapshot |
|---|---|
| Visible | page:visible, snapshot.visibility |
| Hidden | page:hidden |
| Active | session:active |
| Idle | session:idle |
| Offline | connection:offline (advisory) |
For the higher-level page-local facade, see createPresenceApi.