∞ forever components

Inputs & Switches

Pressure Pad

Teal concentric-ring pad dimples inward and pulses while held; releases with a spring rebound. Live grams-of-force readout updates in real time.

canvasmedium complexitymoderate motionclick

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When to use it

Force/pressure input demos, hardware UI mockups, tactile interaction prototypes, or any UI needing a satisfying press-and-hold affordance.

When not to

Contexts requiring a real pressure sensor — the grams readout is purely simulated. Not suited for light-background UIs (hardcoded dark navy background).

Working with an AI agent

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

Change the accent color from teal to amber by setting AC='#f59e0b', and increase the max simulated force from 840 to 1200 grams by editing the grams calculation on line 99. 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

  • accent color (AC='#34e0d0')
  • max grams readout (depth*840)
  • ring count (n=7)
  • press spring speed (0.16 attack / 0.085 release)
  • pad size ratio (R=Math.min(W,H)*0.34)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • DPR-aware canvas sizing
  • IIFE wrapper
  • prefers-reduced-motion guard with static fallback
  • visibilitychange pause/resume
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Grams-of-force is purely simulated — no real pressure API
  • Hover crosshair only activates via pointermove over canvas (no keyboard equiv)
  • Background color hardcoded in CSS and JS — must change both to retheme

pressurecanvasui-controlconcentric-ringshapticmonospaceteal

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