anchor_kit 0.1.0

Headless anchor-positioning primitives for popovers, tooltips, dropdowns and menus. A Floating UI for Flutter.

0.1.0

• New: FloatingOverlay gains barrierDismissible + onDismiss — a transparent tap-outside-to-close barrier for dropdowns / selects / popovers.
• Example: rebuilt into a recipe gallery — placement playground, tooltip, dropdown, select (flips up), and a popover-with-arrow card. Deep-linkable via ?demo=<id> on web. Now runs on web too.
• Docs: README overhauled with screenshots, concept explanations (offset/flip/shift/arrow) and a "Known limitations" section.
• Bundles all 0.0.2 fixes below.

0.0.2

• Fix: FloatingOverlay now follows the anchor when an ancestor scrolls (previously it only listened to descendant scrolls and silently failed to reposition). It also repositions on window resize/rotation and re-measures the floating child each frame so size changes stay positioned.
• Fix: Flip no longer spuriously flips a placement that already fits but touches a viewport edge; and when neither side fits it keeps the side that overflows least instead of always the original.
• Fix: Shift keeps the start edge visible when the floating element is larger than the viewport (was pinned to the far edge).
• Fix: Arrow no longer throws when the floating element is too small to honour padding — it centres the arrow instead.
• API: Offset4 renamed to OffsetMiddleware (old name kept as a deprecated alias until v0.1.0).
• Lifecycle: mounted guards on overlay open/measurement.
• Docs: added docs/SPEC.md; added FloatingOverlay widget tests (including scroll-follow) and middleware edge-case tests.

0.0.1

• Initial scaffold: computePosition, Placement, middleware (Offset4, Flip, Shift, Arrow), FloatingOverlay widget.