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fix(tui): harden overlay focus restoration

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Nico Bailon 2026-05-30 12:48:05 -07:00
parent 82f29ea442
commit 91a2f86600
8 changed files with 542 additions and 176 deletions
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11
packages/coding-agent/docs/tui.md
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@ -145,8 +145,11 @@ const result = await ctx.ui.custom<string | null>(
// Responsive: hide on narrow terminals
visible: (termWidth, termHeight) => termWidth >= 80,
},
// Get handle for programmatic visibility control
// Get handle for programmatic focus and visibility control
onHandle: (handle) => {
// handle.focus() - focus this overlay and bring it to the visual front
// handle.unfocus() - release input to normal fallback
// handle.unfocus({ target }) - release input to a specific component or null
// handle.setHidden(true/false) - toggle visibility
// handle.hide() - permanently remove
},
@ -154,6 +157,12 @@ const result = await ctx.ui.custom<string | null>(
);
```
### Overlay Focus
A focused visible overlay keeps input ownership across temporary non-overlay UI. If an overlay opens another `ctx.ui.custom()` component without `{ overlay: true }`, that replacement UI receives input while it is active; when it closes, the focused overlay can reclaim input.
Use `handle.unfocus()` when a visible overlay should stop owning input and let TUI fall back to another visible capturing overlay or the previous focus target. Use `handle.unfocus({ target })` when a specific component should receive input while the overlay stays visible. Passing `{ target: null }` intentionally leaves no focused component until focus is set again.
### Overlay Lifecycle
Overlay components are disposed when closed. Don't reuse references - create fresh instances: