pota/use/visibility

pota/use/visibility tracks the Page Visibility API — whether the current document is visible to the user (the tab is active and the window isn't minimized or covered). It exposes a synchronous reader plus an Emitter pair, mirroring the shape of fullscreen.

Exports

• isDocumentVisible() — synchronous boolean read (non-reactive)
• useDocumentVisible() — reactive signal accessor
• onDocumentVisible(fn) — side-effect callback