chakra-ui/packages/panda-preset/src/utilities.ts

import { defineUtilities } from "./def"

const createFocusRing = (selector: string) => {
  return {
    values: ["outside", "inside", "mixed", "none"],
    transform(value: any, { token }: any) {
      const focusRingColor = token("colors.colorPalette.focusRing")
      const styles: Record<string, any> = {
        inside: {
          "--focus-ring-color": focusRingColor,
          [selector]: {
            outlineOffset: "0px",
            outlineWidth: "var(--focus-ring-width, 1px)",
            outlineColor: "var(--focus-ring-color)",
            outlineStyle: "var(--focus-ring-style, solid)",
            borderColor: "var(--focus-ring-color)",
          },
        },
        outside: {
          "--focus-ring-color": focusRingColor,
          [selector]: {
            outlineWidth: "var(--focus-ring-width, 2px)",
            outlineOffset: "var(--focus-ring-offset, 2px)",
            outlineStyle: "var(--focus-ring-style, solid)",
            outlineColor: "var(--focus-ring-color)",
          },
        },
        mixed: {
          "--focus-ring-color": focusRingColor,
          [selector]: {
            outlineWidth: "var(--focus-ring-width, 3px)",
            outlineStyle: "var(--focus-ring-style, solid)",
            outlineColor:
              "color-mix(in srgb, var(--focus-ring-color), transparent 60%)",
            borderColor: "var(--focus-ring-color)",
          },
        },
        none: {
          "--focus-ring-color": focusRingColor,
          [selector]: {
            outline: "none",
          },
        },
      }

      return styles[value] ?? {}
    },
  }
}

export const utilities = defineUtilities({
  focusRing: createFocusRing("&:is(:focus, [data-focus])"),
  focusVisibleRing: createFocusRing(
    "&:is(:focus-visible, [data-focus-visible])",
  ),
  focusRingColor: {
    values: "colors",
    transform(value, { utils }) {
      const prop = "--focus-ring-color"
      const mix = utils.colorMix(value)
      if (mix.invalid) return { [prop]: value }
      const cssVar = "--mix-" + prop
      return {
        [cssVar]: mix.value,
        [prop]: `var(${cssVar}, ${mix.color})`,
      }
    },
  },
  focusRingOffset: {
    values: "spacing",
    transform: (v) => ({ "--focus-ring-offset": v }),
  },
  focusRingWidth: {
    values: "borderWidths",
    property: "outlineWidth",
    transform: (v) => ({ "--focus-ring-width": v }),
  },
  focusRingStyle: {
    values: "borderStyles",
    property: "outlineStyle",
    transform: (v) => ({ "--focus-ring-style": v }),
  },
  boxSize: {
    values: "sizes",
    transform: (value) => ({ width: value, height: value }),
  },
})