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@use 'sass:map';
@use 'sass:list';
@use '../core/tokens/m3-utils';
@use '../core/theming/theming';
@use '../core/tokens/m3';
@use '../core/style/elevation';
// The prefix used to generate the fully qualified name for tokens in this file.
$prefix: (mat, expansion);
/// Generates custom tokens for the mat-expansion.
@function get-tokens($theme: m3.$sys-theme) {
$system: m3-utils.get-system($theme);
@return (
base: (
expansion-container-shape: 12px,
expansion-header-indicator-display: inline-block,
expansion-legacy-header-indicator-display: none,
expansion-container-elevation-shadow: elevation.get-box-shadow(2),
),
color: (
expansion-actions-divider-color: map.get($system, outline),
expansion-container-background-color: map.get($system, surface),
expansion-container-text-color: map.get($system, on-surface),
expansion-header-description-color: map.get($system, on-surface-variant),
expansion-header-disabled-state-text-color:
m3-utils.color-with-opacity(map.get($system, on-surface), 38%),
expansion-header-focus-state-layer-color: m3-utils.color-with-opacity(
map.get($system, on-surface), map.get($system, focus-state-layer-opacity)),
expansion-header-hover-state-layer-color: m3-utils.color-with-opacity(
map.get($system, on-surface), map.get($system, hover-state-layer-opacity)),
expansion-header-indicator-color: map.get($system, on-surface-variant),
expansion-header-text-color: map.get($system, on-surface),
),
typography: (
expansion-container-text-font: map.get($system, body-large-font),
expansion-container-text-line-height: map.get($system, body-large-line-height),
expansion-container-text-size: map.get($system, body-large-size),
expansion-container-text-tracking: map.get($system, body-large-tracking),
expansion-container-text-weight: map.get($system, body-large-weight),
expansion-header-text-font: map.get($system, title-medium-font),
expansion-header-text-line-height: map.get($system, title-medium-line-height),
expansion-header-text-size: map.get($system, title-medium-size),
expansion-header-text-tracking: map.get($system, title-medium-tracking),
expansion-header-text-weight: map.get($system, title-medium-weight),
),
density: get-density-tokens(map.get($system, density-scale)),
);
}
// Tokens that can be configured through Angular Material's density theming API.
@function get-density-tokens($scale) {
$scale: theming.clamp-density($scale, -3);
$index: ($scale * -1) + 1;
@return (
expansion-header-collapsed-state-height: list.nth((48px, 44px, 40px, 36px), $index),
expansion-header-expanded-state-height: list.nth((64px, 60px, 56px, 48px), $index),
);
}