The indeterminate checkbox's state can only be set through javascript. There is no indeterminate attribute.
Add the data-js-checkbox-indeterminate data attribute to a checkbox to be able to target it through javascript. The following line can be used to set the indeterminate state on a single checkbox:
document.querySelector("[data-js-checkbox-indeterminate]").indeterminate = true;
<input value="checkbox-value" type="checkbox" name="" class="sr-only" id="" disabled checked><span class="sds-checkboxDot" aria-hidden="true"></span>
{%- if input -%}
<input value="{{ value }}" type="checkbox" name="{{ name }}" class="sr-only{% for mod in inputModifiers %} {{ mod }}{% endfor %}" id="{{ id }}"{% if disabled %} disabled{% endif %}{% if checked %} checked{% endif %}{% for attrKey, attr in attrs %} {{ attrKey }}="{{ attr }}"{% endfor %}>
{%- endif -%}
<span class="{{ namespace }}checkboxDot{% for mod in modifiers %} {{ mod }}{% endfor %}{% for mod in classes %} {{ mod }}{% endfor %}" aria-hidden="true"></span>
/* variables specific to current element */
$checkbox-dot-dimensions: $checkbox-dot-dimensions-global;
.#{$namespace}checkboxDot {
/* Save root element context for easy access if nesting is needed */
$self: &;
/* properties of current element + media queries */
border-width: $border-width*2;
border-style: solid;
width: $checkbox-dot-dimensions-global;
height: $checkbox-dot-dimensions-global;
@extend %checkboxDotShape;
/* Pseudo Elements */
&::before {
content: map-deep-get($token-icon-map, "checksmall");
font-size: map-deep-get($design-tokens, "sys-font-size-body-extra-large-max");
opacity: 0;
@include icon-base;
}
&::after {
}
/*
Include elements that are linked to the current element but have to reside at the root level of the stylesheet
(e.g: keyframes)
*/
@at-root {
@keyframes rotation {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
}
/* children - write selector in full in comments in order to facilitate search */
/* modifiers */
// checkboxDot -active
INPUT:indeterminate + &,
INPUT:checked + &,
&.-isActive {
@include checkboxInputChecked();
}
INPUT:indeterminate + & {
&::before {
content: map-deep-get($token-icon-map, "undetermined");
}
}
// disabled
&.-isDisabled,
INPUT[disabled] + &, INPUT:disabled + & {
@include checkboxInputDisabled();
}
&.-isDisabled:checked,
INPUT[disabled]:checked + &, INPUT:disabled:checked + & {
@include checkboxInputDisabledChecked();
}
&.-isLoading.-isLoading {
@include checkboxInputLoading();
INPUT[disabled]:indeterminate + &,
INPUT[disabled]:checked + & {
@include checkboxInputLoadingDisabledChecked();
}
}
/* random parent element */
/*
*
* Syntax : .randomParentElt & {}
*
*/
.#{$namespace}showCustomIndicatorHover {
&:hover & {
@media (hover: hover) {
@include checkboxInputHovered();
}
}
}
/* Pseudo Classes */
&:hover {
@media (hover: hover) {
@include checkboxInputHovered();
}
}
INPUT:active:not([disabled]) + &,
INPUT:focus-visible + & {
@include checkboxInputFocused();
}
&:active {
}
&:focus,
&:active {
}
}