--- /dev/null
+{#
+/**
+ * @file
+ * Default theme implementation 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()
+ *
+ * @ingroup themeable
+ */
+#}
+{%
+ 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',
+ ]
+%}
+<div{{ attributes.addClass(classes) }}>
+ {% if label_display in ['before', 'invisible'] %}
+ {{ label }}
+ {% endif %}
+ {% if prefix is not empty %}
+ <span class="field-prefix">{{ prefix }}</span>
+ {% endif %}
+ {% if description_display == 'before' and description.content %}
+ <div{{ description.attributes }}>
+ {{ description.content }}
+ </div>
+ {% endif %}
+ {{ children }}
+ {% if suffix is not empty %}
+ <span class="field-suffix">{{ suffix }}</span>
+ {% endif %}
+ {% if label_display == 'after' %}
+ {{ label }}
+ {% 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>