FA-8198 / Overlay interactions / Member archive

Popover outside-interaction handling: Trigger interaction can close but cannot open · case 03

Trigger interaction can close but cannot open.

Member previewVariant 3 · 3 implementations · 12 checks per implementation

Case contract

Cancelled events preserve state; Escape closes; only pointerdown toggles triggers or dismisses outside; membership in the composed path recognizes descendants and portals.

Why this case matters

A deterministic model of popover outside-interaction handling; this isolates one interface invariant without requiring a browser.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
trigger opens	`false`	`true`	Failed

MEMBER ARCHIVE

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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