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////
/// @group BEM
///
/// @access public
////
@use './validators';
@use './vars';
@use '../contexts';
///
/// Create a new state rule.
///
/// @param {string} $state - First state name
/// @param {list} $states - List of more state names
///
/// @content
///
/// @example scss - Using single is-state
/// @include object('menu') {
/// display: none;
///
/// @include state('is', open') {
/// display: block;
/// }
/// }
///
/// // Generates:
///
/// .o-menu {
/// display: none;
/// }
///
/// .o-menu.is-open {
/// display: block;
/// }
///
/// @example scss - Using multiple is-states
/// @include object('menu') {
/// display: none;
///
/// @include state('is', open', 'visible') {
/// display: block;
/// }
/// }
///
/// // Generates:
///
/// .o-menu {
/// display: none;
/// }
///
/// .o-menu.is-open,
/// .o-menu.is-visible {
/// display: block;
/// }
///
@mixin state($prefix, $state, $states...) {
$result: state($prefix, $state, $states...);
$selector: nth($result, 1);
$context: nth($result, 2);
@include validators.validate(
'state',
(prefix: $prefix, state: $state, states: $states),
$selector,
$context
);
@include contexts.push(vars.$context-id, $context...);
@at-root #{$selector} {
@content;
}
@include contexts.pop(vars.$context-id);
}
///
/// Generate a new state.
///
/// @return {list} A list with two items: 1. selector, 2. context or `null`
///
/// @see {mixin} has
///
@function state($prefix, $state, $states...) {
$selector: ();
$parts-data: ();
@each $state in join($state, $states) {
$sel: selector-parse('.#{$prefix}-#{$state}');
@if & {
$sel: selector-append(&, $sel);
}
$selector: join($selector, $sel, comma);
$parts-data: append(
$parts-data, (
'name': $state,
'selector': $sel
)
);
}
$context: 'state', (
'parts': $parts-data,
'selector': $selector
);
@return $selector $context;
}
///
/// Create a new has-state modifier.
///
/// It's a shorthand for state('is', $state, $states...).
///
@mixin is($state, $states...) {
@include state('is', $state, $states...) {
@content;
}
}
///
/// Generate a new is-state modifier. Check the respective mixin documentation for more information.
///
/// @return {list} A list with two items: 1. selector, 2. context or `null`
///
/// @see {mixin} is
///
@function is($state, $states...) {
@return state('is', $state, $states...);
}
///
/// Create a new has-state modifier.
///
/// It's a shorthand for state('has', $state, $states...).
///
@mixin has($state, $states...) {
@include state('has', $state, $states...) {
@content;
}
}
///
/// Generate a new has-state modifier. Check the respective mixin documentation for more information.
///
/// @return {list} A list with two items: 1. selector, 2. context or `null`
///
/// @see {mixin} has
///
@function has($state, $states...) {
@return state('has', $state, $states...);
}
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