∞ forever components

Drag & Reorder

Sortable Grid

3x3 grid of colored numbered tiles that spring-animate into position as tiles are dragged or swapped; auto-shuffles on idle as a demo.

cssmedium complexitymoderate motionpointer

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When to use it

Dashboard card reordering, settings panels, any UI where users need to manually sort a fixed set of items with tactile feedback.

When not to

Lists longer than ~12 items (spring loop scales linearly); contexts where ordering state must persist — this resets on page reload.

Working with an AI agent

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

Change the grid to 4 columns (set COLS=4, N=16, add 7 more PAL entries), increase spring stiffness by changing K from 0.14 to 0.22. 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

  • palette colors (PAL array)
  • grid size (N and COLS)
  • spring stiffness (K=0.14) and damping (D=0.74)
  • tile corner radius (border-radius:7px)
  • idle-to-demo timeout (3600ms)
  • demo swap interval (1300ms)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • IIFE wrapper
  • visibilitychange stop/start guard
  • prefers-reduced-motion early return
  • pointer capture (setPointerCapture)
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Order is not persisted — resets on reload; wire localStorage or a backend to save state
  • Spring loop runs on every rAF frame even when tiles are at rest — no idle settling optimization
  • Keyboard mode focuses the grid container, not individual tiles — screen-reader UX is minimal

dragreordergridspring-physicssortablekeyboardui-control

More Drag & Reorder components

  • FLIP Reorder7-row list reorders via FLIP spring physics on drag or arrow-key input; lifted card gains glow outline while others spring to new slots. Auto-demos when idle.
  • Kanban MoveThree-column kanban board where a cyan card lifts and spring-animates between lanes via FLIP. Auto-demos on a timer; supports arrow keys and horizontal drag.
  • Pull to RefreshA 5-row canvas list springs down on drag, revealing diagonal bars and a rotating geometric indicator; releasing past threshold triggers a 1.5s sync spinner.
  • Snap SliderOchre-accent range slider with 9 tick detents; thumb flicks with spring momentum and rubber-bands at ends. Self-demos on idle, accepts keyboard input.
  • Dual RangeCanvas dual-range slider with two spring-driven thumbs (white lo, amber hi), hatched fill, delta readout, and tick marks. Auto-breathes when idle.
  • Carousel ThrowSeven colored cards orbit a glowing hub in a radial ring; drag to fling with angular inertia, release to snap to the nearest card under the marker.