∞ forever components

UI Micro-interactions

Search Bar Morph

A pill-shaped magnifier icon elastically expands into a full search bar, types a query with a blinking caret, then collapses back — looping automatically.

css+canvasmedium complexitymoderate motionclick

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When to use it

App headers, search entry points, or onboarding flows where you want to demonstrate search affordance without requiring user input.

When not to

Functional search forms where the bar must be interactive — this is a demo loop; wire click handlers and disable the auto-cycle for production use.

Working with an AI agent

Every component ships agent-ready metadata. An example instruction for this one:

Change the typed query to 'find your next idea', set the accent color to #8B5CF6 by replacing #0EA5E9 everywhere, and slow the open phase to 1100ms by setting its dur to 1100. Theme: dark tokens live in :root, the light variant in :root[data-theme="light"]; ?theme=light or a {type:'forever:theme'} postMessage switches at runtime.

Safe to edit

  • query string (QUERY constant)
  • phase durations (PHASES array dur values)
  • mount offset (t0 = now-900: the bar opens at ~0.2 s instead of 1.1 s)
  • accent color (#0EA5E9 in CSS)
  • expanded width multiplier (H*8.6 in OPEN)
  • elastic overshoot curve (elastic function coefficients)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • IIFE wrapper
  • prefers-reduced-motion guard with static fallback render()
  • visibilitychange pause/start handlers
  • geo() resize recalculation
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • SVG handle length does not actually elongate on open — len is constant (lerp of identical values), so the handle stub stays the same size regardless of open state
  • Auto-cycles by default; click only resets to the open phase, not a true interactive toggle

searchmorphingsvgmicrointeractiontypewriterui-controlelastic

More UI Micro-interactions components

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