feat(Radio)!: introduce 2.0 component (#1895)

src/components/InputLabel/InputLabel-v2.module.css

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+@import '../../design-tokens/mixins.css';
+
+/*------------------------------------*\
+    # INPUT LABEL
+\*------------------------------------*/
+
+/**
+ * Text labeling the input component.
+ */
+.label {
+  color: var(--eds-theme-color-text-utility-neutral-primary);
+}
+
+/**
+ * Disabled variant of the input label.
+ */
+.label--disabled {
+  color: var(--eds-theme-color-text-utility-disabled-primary);
+}
+
+/**
+ * Input label size variants.
+ */
+.label--md {
+  font: var(--eds-theme-typography-body-sm);
+}
+.label--lg {
+  font: var(--eds-theme-typography-body-md);
+}

src/components/InputLabel/InputLabel-v2.stories.ts

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+import type { StoryObj, Meta } from '@storybook/react';
+import type { ComponentProps } from 'react';
+
+import { InputLabel } from './InputLabel-v2';
+
+export default {
+  title: 'Components/V2/InputLabel',
+  component: InputLabel,
+  args: {
+    children: 'Label',
+  },
+  parameters: {
+    badges: ['intro-1.0'],
+  },
+} as Meta<Args>;
+
+type Args = ComponentProps<typeof InputLabel>;
+
+export const Default: StoryObj<Args> = {};
+
+export const Medium: StoryObj<Args> = {
+  args: {
+    size: 'md',
+  },
+};
+
+export const LargeDisabled: StoryObj<Args> = {
+  args: {
+    disabled: true,
+  },
+  parameters: {
+    axe: {
+      disabledRules: ['color-contrast'],
+    },
+  },
+};
+
+export const MediumDisabled: StoryObj<Args> = {
+  args: {
+    disabled: true,
+    size: 'md',
+  },
+  parameters: {
+    axe: {
+      disabledRules: ['color-contrast'],
+    },
+  },
+};
+
+export const LongCopy: StoryObj<Args> = {
+  args: {
+    children:
+      'Long label lorem ipsum dolor sit amet, consectetur adipiscing elit. Ac id velit ut egestas arcu. Atmaecenas urna, risus donec praesent eu consectetur.',
+  },
+};

src/components/InputLabel/InputLabel-v2.tsx

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+import clsx from 'clsx';
+import React from 'react';
+import type { ReactNode } from 'react';
+import type { Size } from '../../util/variant-types';
+import styles from './InputLabel-v2.module.css';
+
+export type InputLabelProps = {
+  /**
+   * Text to render in label.
+   */
+  children: ReactNode;
+  /**
+   * Additional classnames passed in for styling.
+   */
+  className?: string;
+  /**
+   * ID of input that label is associated with.
+   */
+  htmlFor: string;
+  /**
+   * Size of the label.
+   *
+   * **Default is `"lg"`**.
+   */
+  size?: Extract<Size, 'md' | 'lg'>;
+  /**
+   * Indicates disabled state of the input.
+   */
+  disabled?: boolean;
+};
+
+/**
+ * `import {InputLabel} from "@chanzuckerberg/eds";`
+ *
+ * Label associated with an input element such as a radio or checkbox.
+ */
+export const InputLabel = ({
+  children,
+  className,
+  htmlFor,
+  size = 'lg',
+  disabled,
+}: InputLabelProps) => {
+  const componentClassName = clsx(
+    styles['label'],
+    size === 'md' && styles['label--md'],
+    size === 'lg' && styles['label--lg'],
+    disabled && styles['label--disabled'],
+    className,
+  );
+  return (
+    <label className={componentClassName} htmlFor={htmlFor}>
+      {children}
+    </label>
+  );
+};
+
+InputLabel.displayName = 'InputLabel';

src/components/Radio/Radio-v2.module.css

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+/*------------------------------------*\
+    # RADIO BUTTON
+\*------------------------------------*/
+
+/**
+ * A custom individual radio control
+ */
+.radio {
+  display: flex;
+  gap: 0.5rem;
+}
+
+/**
+ * Wraps the visually hidden radio input element and the visible sibling svg element.
+ */
+.input__wrapper {
+  position: relative;
+  /* Centers the radio icon in the wrapper. */
+  display: inline-flex;
+  align-items: center;
+  /* Aligns the radio with the first line of the label. */
+  align-self: flex-start;
+}
+/**
+ * The visually hidden input element for the radio. The visual radio is provided by an svg element.
+ */
+.radio__input {
+  /* Removes default margins placed by browser for radios. */
+  margin: 0;
+  /* Remove the radio from the page flow, positioning it on top of the SVG. */
+  position: absolute;
+  /* Set same dimensions as the RadioSvg element. */
+  height: 1.5rem;
+  width: 1.5rem;
+
+  /**
+   * Hide the input element visually.
+   * This ensures the radio is still "physically" present so that all users,
+   * especially on touch screen readers, still interact with the real radio element
+   * where it would naturally be present.
+   */
+  opacity: 0;
+}
+
+/**
+ * The disabled status of the visually hidden input element.
+ */
+ .radio__input:disabled {
+  /* Needed since the input element overlays the visible svg icon for user input and cursor. */
+  cursor: not-allowed;
+  pointer-events: none;
+}
+
+.radio__labels {
+  position: relative;
+}
+
+/**
+ * Text that labels a radio input.
+ */
+.radio__label {
+  position: relative;
+}
+
+.radio__sub-label {
+  display: block;
+
+  color: var(--eds-theme-color-text-utility-neutral-secondary);
+}
+
+/**
+ * The visible radio svg icon element
+ */
+.radio__icon {
+  /* Creates space for the border so that there's no jitter when the focus border is visible. */
+  border: 0.125rem solid transparent;
+
+  /* Theming when unchecked */
+  .radio__input:not(:checked) + & {
+    color: var(--eds-theme-color-border-utility-neutral-medium-emphasis);
+  }
+
+  .radio__input:not(:checked):hover + & {
+    color: var(--eds-theme-color-border-utility-neutral-medium-emphasis-hover);
+  }
+
+  .radio__input:not(:checked):active + & {
+    color: var(--eds-theme-color-border-utility-neutral-medium-emphasis-active);
+  }
+
+  .radio__input:not(:checked):disabled + & {
+    color: var(--eds-theme-color-border-utility-disabled);
+    pointer-events: none;
+  }
+
+  /* Theming when checked */
+  .radio__input:checked + & {
+    color: var(--eds-theme-color-background-utility-interactive-high-emphasis);
+  }
+
+  .radio__input:checked:hover ~ & {
+    color: var(--eds-theme-color-background-utility-interactive-high-emphasis-hover);
+  }
+
+  .radio__input:checked:active ~ & {
+    color: var(--eds-theme-color-background-utility-interactive-high-emphasis-active);
+  }
+
+  .radio__input:checked:disabled ~ & {
+    color: var(--eds-theme-color-border-utility-disabled);
+  }
+
+  /**
+   * Error Theming
+   */ 
+  .radio__input.radio--error ~ & {
+    color: var(--eds-theme-color-border-utility-critical);
+  }
+
+  .radio__input.radio--error:hover ~ & {
+    color: var(--eds-theme-color-border-utility-critical-hover);
+  }
+
+  .radio__input.radio--error:active ~ & {
+    color: var(--eds-theme-color-border-utility-critical-active);
+  }
+}
+
+/**
+ * Handling focus ring
+ * TODO-AH: focus ring clamped to the actual radio button, not its bounding label (browser default)
+ */
+.radio__input:focus-visible + .radio__icon {
+  border: 0.125rem solid var(--eds-theme-color-border-utility-focus);
+  border-radius: var(--eds-border-radius-full);
+}
+
+@supports not selector(:focus-visible) {
+  .radio__input:focus + .radio__icon {
+    border: 0.125rem solid var(--eds-theme-color-border-utility-focus);
+    border-radius: var(--eds-border-radius-full);
+  }
+}