material_base-8.x-2.x-dev/themes/material_base_mdc/templates/form/form-element--checkbox.html.twig

{#
/**
 * @file
 * Theme override for a form element.
 *
 * Available variables:
 * - attributes: HTML attributes for the containing element.
 * - errors: (optional) Any errors for this form element, may not be set.
 * - prefix: (optional) The form element prefix, may not be set.
 * - suffix: (optional) The form element suffix, may not be set.
 * - required: The required marker, or empty if the associated form element is
 *   not required.
 * - type: The type of the element.
 * - name: The name of the element.
 * - label: A rendered label element.
 * - label_display: Label display setting. It can have these values:
 *   - before: The label is output before the element. This is the default.
 *     The label includes the #title and the required marker, if #required.
 *   - after: The label is output after the element. For example, this is used
 *     for radio and checkbox #type elements. If the #title is empty but the
 *     field is #required, the label will contain only the required marker.
 *   - invisible: Labels are critical for screen readers to enable them to
 *     properly navigate through forms but can be visually distracting. This
 *     property hides the label for everyone except screen readers.
 *   - attribute: Set the title attribute on the element to create a tooltip but
 *     output no label element. This is supported only for checkboxes and radios
 *     in \Drupal\Core\Render\Element\CompositeFormElementTrait::preRenderCompositeFormElement().
 *     It is used where a visual label is not needed, such as a table of
 *     checkboxes where the row and column provide the context. The tooltip will
 *     include the title and required marker.
 * - description: (optional) A list of description properties containing:
 *    - content: A description of the form element, may not be set.
 *    - attributes: (optional) A list of HTML attributes to apply to the
 *      description content wrapper. Will only be set when description is set.
 * - description_display: Description display setting. It can have these values:
 *   - before: The description is output before the element.
 *   - after: The description is output after the element. This is the default
 *     value.
 *   - invisible: The description is output after the element, hidden visually
 *     but available to screen readers.
 * - disabled: True if the element is disabled.
 * - title_display: Title display setting.
 *
 * @see template_preprocess_form_element()
 */
#}
{% set classes = [
  'js-form-item',
  'form-item',
  'js-form-type-' ~ type|clean_class,
  'form-item-' ~ name|clean_class,
  'js-form-item-' ~ name|clean_class,
  title_display not in ['after', 'before'] ? 'form-no-label',
  disabled == 'disabled' ? 'form-disabled',
  errors ? 'form-item--error',
] %}

{% set description_classes = [
  'description',
  description_display == 'invisible' ? 'visually-hidden',
] %}

{% set label_attributes = create_attribute() %}

{% set label_classes = [
  'option',
  label_display == 'invisible' ? 'visually-hidden',
  required ? 'js-form-required',
  required ? 'form-required',
] %}

<div{{ attributes.addClass(classes) }}>

  {% if prefix is not empty %}
    <span class="field-prefix">{{ prefix }}</span>
  {% endif %}

  {% if description_display == 'before' and description.content %}
    <div{{ description.attributes.addClasses('description') }}>
      {{ description.content }}
    </div>
  {% endif %}

  <div class="mdc-form-field{{ disabled == 'disabled' ? ' mdc-checkbox--disabled' }}" data-mdc-auto-init="MDCFormField">

    <div class="mdc-checkbox" data-mdc-auto-init="MDCCheckbox">
      <input{{ input_attributes.addClass('mdc-checkbox__native-control') }}>

      <div class="mdc-checkbox__background">
        <svg class="mdc-checkbox__checkmark" viewBox="0 0 24 24">
          <path class="mdc-checkbox__checkmark-path" fill="none" d="M1.73,12.91 8.1,19.28 22.79,4.59"/>
        </svg>
        <div class="mdc-checkbox__mixedmark"></div>
      </div>

      <div class="mdc-checkbox__ripple"></div>
    </div>

    <label{{ label_attributes.addClass(label_classes).setAttribute('for', input_attributes.id) }}>{{ label['#title'] }}</label>

  </div>

  {% if suffix is not empty %}
    <span class="field-suffix">{{ suffix }}</span>
  {% endif %}

  {% if errors %}
    <div class="form-item--error-message">
      {{ errors }}
    </div>
  {% endif %}

  {% if description_display in ['after', 'invisible'] and description.content %}
    <div{{ description.attributes.addClass(description_classes) }}>
      {{ description.content }}
    </div>
  {% endif %}
</div>