Morph Button

A button that grows into a small panel or a bar of actions in one continuous shape.

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Category
Forms
Access
Pro
Source
220 lines · one file
States
5 drawn

The decision inside it

One surface, not a popover

The button becomes the panel, so the eye follows one shape and there is nothing to position beside it.

When to use it

Use Morph Button for a small, quick task that should open from the button itself: share, invite, quick add, or a bar of a few actions. For anything longer, use a Dialog or Popover.

Installation

How you get it

Paste this into Claude Code, Cursor, Codex or any coding agent. It installs the file and uses it as it is, instead of writing a new one.

Use Liro's Morph Button for this.
Install it: npx shadcn@latest add @liro/morph-button
(the @liro registry is set up in components.json, with LIRO_KEY in .env.local)
Import it from @/components/ui/morph-button.
Do not rewrite or restyle it. Pass my data through its props
and keep its built-in states.

For the full brief with every prop and the mistakes assistants usually make, use Copy prompt above. Pro components install through the @liro registry with your CLI token: see the Namespaced tab.

Usage

components/share-button.tsx
import { Share2 } from "lucide-react";
import { MorphButton } from "@/components/ui/morph-button";

export function ShareButton({ copy }: { copy: () => void }) {
  return (
    <MorphButton label="Share" width={300} align="end" trigger={<><Share2 className="size-4" /> Share</>}>
      <button type="button" onClick={copy}>Copy link</button>
    </MorphButton>
  );
}

API reference

“Copy prompt” above puts a full brief on your clipboard, install command, dependencies, props, and the mistakes an assistant usually makes with this component.

Props

Read from the component’s own TypeScript interface when the site is built, so this table cannot drift from the file you install.

TypeNotes
triggerReact.ReactNode YesWhat the closed button shows: a word, an icon, or both.
childrenReact.ReactNode YesThe open panel or bar.
labelstring YesThe open surface's name for screen readers, and the trigger's when it is only an icon.
openboolean No–
defaultOpenboolean No–
onOpenChange(open: boolean) => void No–
expandTo"panel" | "bar" NoA panel for content, or a bar of actions. Default "panel".
widthnumber NoWidth when open, in pixels. Default 320 for a panel; a bar sizes to its buttons.
align"start" | "end" NoWhich edge it grows from. Default "start".

Dependencies

npm packages

clsxframer-motionlucide-reacttailwind-merge

Liro foundations, installed alongside it

liro-theme

States

All of them are drawn by the component. None is left for you to design.

  • Closed
  • Panel open
  • Bar open
  • Icon trigger
  • Reduced motion

Accessibility

  • Keyboard reachable throughout, in visual order
  • Focus trapped in overlays, Escape closes them
  • Focus returns to whatever opened it
  • Live regions announce what changed, not that something did
  • Honours prefers-reduced-motion

Responsive behavior

  • Sizes to its container, not the viewport
  • Usable from 320px up
  • Pointer-based interaction, so trackpad and touch both work
  • No hover-only affordances