_m3-option.scss

@use 'sass:map';
@use '../tokens/m3-utils';
@use '../tokens/m3';

/// Generates custom tokens for the mat-option.
@function get-tokens($theme: m3.$sys-theme, $color-variant: null) {
  $system: m3-utils.get-system($theme);
  @if $color-variant {
    $system: m3-utils.replace-colors-with-variant($system, secondary, $color-variant);
  }

  // According to the spec the options have to be `label-large` in all typography
  // dimensions, however this is inconsistent with the designs and with MDC's
  // own implementation. This appears to be a bug in the spec, because MDC overrides
  // the font size and weight to be `body-large` (see b/261838263). We make the same
  // override here so the label looks correct.
  @return (
    base: (),
    color: (
      option-focus-state-layer-color: m3-utils.color-with-opacity(
          map.get($system, on-surface), map.get($system, focus-state-layer-opacity)),
      option-hover-state-layer-color: m3-utils.color-with-opacity(
          map.get($system, on-surface), map.get($system, hover-state-layer-opacity)),
      option-label-text-color: map.get($system, on-surface),
      option-selected-state-label-text-color: map.get($system, on-secondary-container),
      option-multiple-selected-state-label-text-color: null,
      option-selected-state-layer-color: map.get($system, secondary-container),
    ),
    typography: (
      option-label-text-size: map.get($system, body-large-size),
      option-label-text-weight: map.get($system, body-large-weight),
      option-label-text-font: map.get($system, label-large-font),
      option-label-text-line-height: map.get($system, label-large-line-height),
      option-label-text-tracking: map.get($system, label-large-tracking),
    ),
    density: (),
  );
}