Gate hub-client remote edits + presence notifications while tab hidden#134
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shikokuchuo merged 2 commits intomainfrom Apr 24, 2026
Merged
Gate hub-client remote edits + presence notifications while tab hidden#134shikokuchuo merged 2 commits intomainfrom
shikokuchuo merged 2 commits intomainfrom
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Defer per-change executeEdits and per-message subscriber notifications while document.visibilityState is 'hidden'; flush once on visibilitychange → visible (or window focus, for browsers that skip visibilitychange). Eliminates the replay-animation users saw when refocusing a backgrounded tab. Plan at claude-notes/plans/2026-04-24-hub-client-visibility-gating.md.
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Fixes #133.
Problem
Backgrounded tabs queue Automerge change events and ephemeral presence messages. On refocus the queue drains as per-event
executeEditsand per-message subscriber callbacks, which users see as remote text being typed at super-speed and cursors sweeping through intermediate positions.Fix
Defer Monaco edits and presence subscriber notifications while
document.visibilityState === 'hidden'— data still lands in React state andremotePresences, so nothing goes stale — and flush once onvisibilitychange → visible, with awindow focusfallback for the documented browsers/modes wherevisibilitychangedoesn't fire.Repro and design in
claude-notes/plans/2026-04-24-hub-client-visibility-gating.md.