_chip.scss

@use 'sass:color';
@use 'sass:map';
@use '../../token-utils';
@use '../../../mdc-helpers/mdc-helpers';
@use '../../../style/sass-utils';
@use '../../../theming/theming';
@use '../../../typography/typography-utils';

// The prefix used to generate the fully qualified name for tokens in this file.
$prefix: (mdc, chip);

// Tokens that can't be configured through Angular Material's current theming API,
// but may be in a future version of the theming API.
//
// Tokens that are available in MDC, but not used in Angular Material should be mapped to `null`.
// `null` indicates that we are intentionally choosing not to emit a slot or value for the token in
// our CSS.
@function get-unthemable-tokens() {
  @return (
    // The shape & radius of the chip.
    container-shape:
      (
        family: 'rounded',
        radius: (
          16px 16px 16px 16px,
        )
      ),
    // The shape & radius of the avatar.
    with-avatar-avatar-shape:
      (
        family: 'rounded',
        radius: (
          14px 14px 14px 14px,
        )
      ),
    // The width & height of the chip avatar.
    with-avatar-avatar-size: 28px,
    // The width & height of the chip icon.
    with-icon-icon-size: 18px,
    // Not used by MDC.
    disabled-label-text-opacity: null,
    // Not used by MDC.
    disabled-outline-opacity: null,
    // Not used by MDC.
    elevated-disabled-container-opacity: null,
    // Not used by MDC.
    flat-disabled-outline-opacity: null,
    // Not used by MDC.
    flat-disabled-unselected-outline-opacity: null,
    // Our chips do not have a border.
    flat-outline-width: null,
    // Our chips do not have a border.
    flat-selected-outline-width: null,
    // Our chips do not have a border.
    flat-unselected-outline-width: null,
    // Our chips do not have a border.
    outline-width: null,
    // Not used by MDC.
    with-avatar-disabled-avatar-opacity: null,
    // Not used by MDC.
    with-icon-disabled-icon-opacity: null,
    // Not used by MDC.
    with-leading-icon-disabled-leading-icon-opacity: null,
    // Not used by MDC.
    with-leading-icon-leading-icon-size: null,
    // Not used by MDC.
    with-trailing-icon-disabled-trailing-icon-opacity: null,
    // Not used by MDC.
    with-trailing-icon-trailing-icon-size: null,
    // Elevated chips not implemented.
    container-elevation: null,
    // Elevated chips not implemented.
    container-shadow-color: null,
    // Our chips do not have a border.
    disabled-outline-color: null,
    // Elevated chips not implemented.
    elevated-container-elevation: null,
    // Elevated chips not implemented.
    elevated-container-shadow-color: null,
    // Elevated chips not implemented.
    container-surface-tint-layer-color: null,
    // Elevated chips not implemented.
    elevated-disabled-container-elevation: null,
    // Elevated chips not implemented.
    elevated-focus-container-elevation: null,
    // Elevated chips not implemented.
    elevated-hover-container-elevation: null,
    // Elevated chips not implemented.
    elevated-pressed-container-elevation: null,
    // Elevated chips not implemented.
    elevated-selected-container-color: null,
    // Elevated chips not implemented.
    elevated-selected-container-elevation: null,
    // Elevated chips not implemented.
    elevated-unselected-container-color: null,
    // Elevated chips not implemented.
    flat-container-elevation: null,
    // Our chips do not have a border.
    flat-disabled-outline-color: null,
    // Not providing this uses
    flat-disabled-selected-container-color: null,
    // Not used by MDC.
    flat-disabled-selected-container-opacity: null,
    // Unused.
    flat-disabled-selected-outline-color: null,
    // Unused.
    flat-disabled-selected-outline-opacity: null,
    // Unused.
    flat-disabled-unselected-outline-color: null,
    // Unused.
    flat-focus-outline-color: null,
    // Unused.
    flat-outline-color: null,
    // Unused.
    flat-selected-container-color: null,
    // Unused.
    flat-selected-focus-container-elevation: null,
    // Unused.
    flat-selected-hover-container-elevation: null,
    // Unused.
    flat-selected-outline-color: null,
    // Unused.
    flat-selected-pressed-container-elevation: null,
    // Unused.
    flat-unselected-focus-container-elevation: null,
    // Unused.
    flat-unselected-focus-outline-color: null,
    // Unused.
    flat-unselected-hover-container-elevation: null,
    // Unused.
    flat-unselected-outline-color: null,
    // Unused.
    flat-unselected-pressed-container-elevation: null,
    // Unused.
    focus-label-text-color: null,
    // Unused.
    focus-outline-color: null,
    // Unused.
    focus-state-layer-color: null,
    // Unused.
    focus-state-layer-opacity: null,
    // Unused.
    hover-label-text-color: null,
    // Unused.
    hover-state-layer-color: null,
    // Unused.
    hover-state-layer-opacity: null,
    // Unused.
    outline-color: null,
    // Unused.
    pressed-label-text-color: null,
    // Unused.
    pressed-state-layer-color: null,
    // Unused.
    pressed-state-layer-opacity: null,
    // Unused.
    selected-focus-label-text-color: null,
    // Unused.
    selected-focus-state-layer-color: null,
    // Unused.
    selected-focus-state-layer-opacity: null,
    // Unused.
    selected-hover-label-text-color: null,
    // Unused.
    selected-hover-state-layer-color: null,
    // Unused.
    selected-hover-state-layer-opacity: null,
    // Unused.
    selected-label-text-color: null,
    // Unused.
    selected-pressed-label-text-color: null,
    // Unused.
    selected-pressed-state-layer-color: null,
    // Unused.
    selected-pressed-state-layer-opacity: null,
    // Unused.
    unselected-focus-label-text-color: null,
    // Unused.
    unselected-focus-state-layer-color: null,
    // Unused.
    unselected-focus-state-layer-opacity: null,
    // Unused.
    unselected-hover-label-text-color: null,
    // Unused.
    unselected-hover-state-layer-color: null,
    // Unused.
    unselected-hover-state-layer-opacity: null,
    // Unused.
    unselected-label-text-color: null,
    // Unused.
    unselected-pressed-label-text-color: null,
    // Unused.
    unselected-pressed-state-layer-color: null,
    // Unused.
    unselected-pressed-state-layer-opacity: null,
    // Unused.
    with-icon-focus-icon-color: null,
    // Unused.
    with-icon-hover-icon-color: null,
    // Unused.
    with-icon-pressed-icon-color: null,
    // Unused.
    with-icon-selected-focus-icon-color: null,
    // Unused.
    with-icon-selected-hover-icon-color: null,
    // Unused.
    with-icon-selected-pressed-icon-color: null,
    // Unused.
    with-icon-unselected-focus-icon-color: null,
    // Unused.
    with-icon-unselected-hover-icon-color: null,
    // Unused.
    with-icon-unselected-icon-color: null,
    // Unused.
    with-icon-unselected-pressed-icon-color: null,
    // Unused.
    with-leading-icon-disabled-leading-icon-color: null,
    // Unused.
    with-leading-icon-focus-leading-icon-color: null,
    // Unused.
    with-leading-icon-hover-leading-icon-color: null,
    // Unused.
    with-leading-icon-leading-icon-color: null,
    // Unused.
    with-leading-icon-pressed-leading-icon-color: null,
    // Unused.
    with-trailing-icon-focus-trailing-icon-color: null,
    // Unused.
    with-trailing-icon-hover-trailing-icon-color: null,
    // Unused.
    with-trailing-icon-pressed-trailing-icon-color: null
  );
}

// Tokens that can be configured through Angular Material's color theming API.
@function get-color-tokens($config) {
  $palette: map.get($config, primary);
  $background: theming.get-color-from-palette($palette);
  $foreground: theming.get-color-from-palette($palette, default-contrast);

  @return (
    // The text color of a disabled chip.
    disabled-label-text-color: $foreground,
    // The background-color of the chip.
    elevated-container-color: $background,
    // The background-color of a disabled chip.
    elevated-disabled-container-color: $background,
    // The chip text color.
    label-text-color: $foreground,
    // The icon color of a chip.
    with-icon-icon-color: $foreground,
    // The color of the icon of a disabled chip.
    with-icon-disabled-icon-color: $foreground,
    // The color of the icon of a selected chip.
    with-icon-selected-icon-color: $foreground,
    // The color of the icon at the end of a disabled chip.
    with-trailing-icon-disabled-trailing-icon-color: $foreground,
    // The color of the icon at the end of the chip.
    with-trailing-icon-trailing-icon-color: $foreground
  );
}

// Tokens that can be configured through Angular Material's typography theming API.
@function get-typography-tokens($config) {
  // TODO(wagnermaciel): The earlier implementation of the chip used MDC's APIs to create the
  // typography tokens. As a result, we unintentionally allowed `null` typography configs to be
  // passed in. Since there a lot of apps that now depend on this pattern, we need this temporary
  // fallback.
  @if ($config == null) {
    $config: mdc-helpers.private-fallback-typography-from-mdc();
  }

  @return (
    // The font family of the chip text.
    label-text-font: typography-utils.font-family($config, body-2) or
      typography-utils.font-family($config),
    // The line height of the chip text.
    label-text-line-height: typography-utils.line-height($config, body-2),
    // The font size of the chip text.
    label-text-size: typography-utils.font-size($config, body-2),
    // The letter spacing of the chip label.
    label-text-tracking: typography-utils.letter-spacing($config, body-2),
    // The font weight of the chip text.
    label-text-weight: typography-utils.font-weight($config, body-2)
  );
}

// Tokens that can be configured through Angular Material's density theming API.
@function get-density-tokens($config) {
  $scale: theming.clamp-density($config, -2);
  @return (
    // The height of the chip.
    container-height:
      map.get(
        (
          0: 32px,
          -1: 28px,
          -2: 24px,
        ),
        $scale
      )
  );
}

// Combines the tokens generated by the above functions into a single map with placeholder values.
// This is used to create token slots.
@function get-token-slots() {
  @return sass-utils.deep-merge-all(
    get-unthemable-tokens(),
    get-color-tokens(token-utils.$placeholder-color-config),
    get-typography-tokens(token-utils.$placeholder-typography-config),
    get-density-tokens(token-utils.$placeholder-density-config)
  );
}