IIdleDetector

Detect user idle / screen lock.

• Wraps: Idle Detection API
• MDN: IdleDetector
• Home: Rask.Wasm.Browser (WASM only)
• Shape: subscription (pushes to a callback)
• Availability: Web/Server ⬜ · PWA/WASM ✅

Needs an activation-gated permission and a live document — WASM-only.

See also

• Source: IIdleDetector.cs
• Capability matrix
• Browser APIs — the narrative map