Code

Styles an inline code snippet in the theme's monospace stack, with a subtle surface background, rounded corners, and shifted tone. Apply to a <code> element.

Props

Prop	Type	Default	Description
`color`	`ValueOrState<ThemeColor>`	`"neutral"`	Surface and text tone.

Customization

Must see the source of patch at the bottom of each patch page to understand the structure then code it still code as html native element.

There are four levels of customization, in increasing order of effort:

Patch props. Each patch exposes a small, stable set of props—typically fewer than five. Lowest friction.
Context attributes. Use dataTone, dataSize, and dataDensity on a container to shift tone, size, or density for an entire subtree without touching individual elements.
Inline override. Native-wins merge strategy: any property set directly on the element overrides the patch value.
Create a variant. Clone a similar patch and edit it. Use this only when you need a reusable custom version.

Formulas

Unit - U = fontSize / 4 - convert final values with themeSpacing(n).

Size - n = intrinsic text lines, w = wrapping level, d = density factor:

height        = (n * 6 + 2 * d * w) * U
paddingBlock  = d * w * U
paddingInline = ceil(3 / w) * d * w * U
radius        = d * w * U

Base density d = 1.5:

U	w=0	w=1	w=2	w=3
height (`n = 1`)	6	9	12	15
paddingBlock	0	1.5	3	4.5
paddingInline	3	4.5	6	4.5
radius	0	1.5	3	4.5

Tone - K = N / 2 where N is the palette length. For N = 18, K = 9.

Role	Shift	n=0
Background	parent +/- n	0
Text	bg + K	6
Border	bg + K/2	3
Hover	bg + 2K/3	4
Selected / Focus	above +/- K/3	2-4

State shift range: K/3 <= delta <= 2K/3.

code

import { type PartialElement, toState, type ValueOrState } from "@domphy/core";
import {
  type ThemeColor,
  themeColor,
  themeDensity,
  themeFont,
  themeSize,
  themeSpacing,
} from "@domphy/theme";

/**
 * Styles an inline code snippet in the theme's monospace stack, with a subtle
 * surface background, rounded corners, and shifted tone. Apply to a `<code>` element.
 *
 * @hostTag code
 * @param props.color - Surface/text color tone. Optional `ValueOrState<ThemeColor>`, default "neutral".
 * @example { code: "npm install", $: [code({ color: "neutral" })] }
 */
function code(
  props: { color?: ValueOrState<ThemeColor> } = {},
): PartialElement {
  const color = toState(props.color ?? "neutral", "color");

  return {
    dataTone: "shift-2",
    _onInsert: (node) => {
      if (node.tagName !== "code") {
        console.warn(`"code" primitive patch must use code tag`);
      }
    },
    style: {
      display: "inline-flex",
      alignItems: "center",
      whiteSpace: "nowrap",
      fontSize: (listener) => themeSize(listener, "inherit"),
      // The theme owns the code stack; <code>/<kbd>/<pre> otherwise keep the
      // UA generic "monospace" (Courier New on Windows), so a theme that swaps
      // fontFamilies.monospace never reaches them.
      fontFamily: themeFont("monospace"),
      color: (listener) => themeColor(listener, "text", color.get(listener)),
      backgroundColor: (listener) =>
        themeColor(listener, "inherit", color.get(listener)),
      // A chip inside running text keeps its own compact line box: an inherited
      // line-height (1.8, say) would otherwise overflow the fixed height.
      lineHeight: "normal",
      // Bare themeSpacing(U) at snapshot time; n = U / 1.5 (light.densities[2]).
      // minHeight, not height: at a small density the chip must still grow to
      // its own line box rather than clip the text.
      minHeight: (listener) => themeSpacing(themeDensity(listener) * (6 / 1.5)),
      paddingInline: (listener) =>
        themeSpacing(themeDensity(listener) * (1.5 / 1.5)),
      borderRadius: (listener) =>
        themeSpacing(themeDensity(listener) * (1 / 1.5)),
    },
  };
}

export { code };

Code#

Props#

Code

Props