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Input Date Time

Use the input-date-time patch to customize this element.

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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:

  1. Patch props. Each patch exposes a small, stable set of props—typically fewer than five. Lowest friction.
  2. Context attributes. Use dataTone, dataSize, and dataDensity on a container to shift tone, size, or density for an entire subtree without touching individual elements.
  3. Inline override. Native-wins merge strategy: any property set directly on the element overrides the patch value.
  4. 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:

Uw=0w=1w=2w=3
height (n = 1)691215
paddingBlock01.534.5
paddingInline34.564.5
radius01.534.5

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

RoleShiftn=0
Backgroundparent +/- n0
Textbg + K6
Borderbg + K/23
Hoverbg + 2K/34
Selected / Focusabove +/- K/32-4

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

<div class="blocks">
<div class="block active" data-tab="0">
import { type PartialElement, toState, type ValueOrState } from "@domphy/core";
import {
  type ThemeColor,
  themeColor,
  themeDensity,
  themeSize,
  themeSpacing,
} from "@domphy/theme";

type InputDateTimeMode = "date" | "time" | "week" | "month" | "datetime-local";

/**
 * Styles a native date/time input with themed border, padding, hover, focus,
 * invalid and disabled states. The `mode` selects the input `type`. Apply to
 * an `<input>` element (the patch sets `type` to the chosen `mode`).
 *
 * @hostTag input
 * @param props.mode - Input mode selecting the host `type`: `"date" | "time" | "week" | "month" | "datetime-local"`. Defaults to `"datetime-local"`.
 * @param props.color - Optional theme color tone for text/border (`ValueOrState<ThemeColor>`). Defaults to `"neutral"`.
 * @param props.accentColor - Optional theme color tone for the hover/focus ring (`ValueOrState<ThemeColor>`). Defaults to `"primary"`.
 * @example { input: null, type: "datetime-local", $: [inputDateTime()] }
 */
function inputDateTime(
  props: {
    mode?: InputDateTimeMode;
    color?: ValueOrState<ThemeColor>;
    accentColor?: ValueOrState<ThemeColor>;
  } = {},
): PartialElement {
  const { mode = "datetime-local" } = props;
  const color = toState(props.color ?? "neutral", "color");
  const accentColor = toState(props.accentColor ?? "primary", "accentColor");

  return {
    type: mode,
    _onSchedule: (node, element) => {
      if (node.tagName !== "input") {
        console.warn(`"inputDateTime" primitive patch must use input tag`);
      }
      (element as any).type = mode;
    },
    style: {
      fontFamily: "inherit",
      fontSize: (listener) => themeSize(listener, "inherit"),
      lineHeight: "inherit",
      color: (listener) => themeColor(listener, "shift-9", color.get(listener)),
      backgroundColor: (listener) =>
        themeColor(listener, "inherit", color.get(listener)),
      border: "none",
      outlineOffset: "-1px",
      outline: (listener) =>
        `1px solid ${themeColor(listener, "shift-4", color.get(listener))}`,
      borderRadius: (listener) => themeSpacing(themeDensity(listener) * 1),
      paddingInline: (listener) => themeSpacing(themeDensity(listener) * 3),
      height: (listener) => themeSpacing(6 + themeDensity(listener) * 2),
      "&::-webkit-calendar-picker-indicator": {
        cursor: "pointer",
        opacity: 0.85,
      },
      "&:hover:not([disabled]):not([aria-busy=true]), &:focus-visible": {
        outline: (listener) =>
          `${themeSpacing(0.5)} solid ${themeColor(listener, "shift-6", accentColor.get(listener))}`,
      },
      "&[disabled]": {
        opacity: 0.7,
        cursor: "not-allowed",
        color: (listener) => themeColor(listener, "shift-8", "neutral"),
        backgroundColor: (listener) =>
          themeColor(listener, "shift-2", "neutral"),
        outline: (listener) =>
          `1px solid ${themeColor(listener, "shift-4", "neutral")}`,
      },
      "&:invalid": {
        outline: (listener) =>
          `${themeSpacing(0.5)} solid ${themeColor(listener, "shift-6", "error")}`,
      },
    },
  };
}

export { inputDateTime };
</div>
</div>