status-messages.html.twig in Drupal 9

Theme override for status messages.

Displays status, error, and warning messages, grouped by type.

An invisible heading identifies the messages for assistive technology. Sighted users see a colored box. See https://www.w3.org/TR/WCAG-TECHS/H69.html for info.

Add an ARIA label to the contentinfo area so that assistive technology user agents will better describe this landmark.

Available variables:

• message_list: List of messages to be displayed, grouped by type.
• status_headings: List of all status types.
• attributes: HTML attributes for the element, including:
  • class: HTML classes.

3 theme calls to status-messages.html.twig

DefaultsEntityForm::buildMessage in core/modules/layout_builder/src/Form/DefaultsEntityForm.php

Renders a message to display at the top of the layout builder.

OverridesEntityForm::buildMessage in core/modules/layout_builder/src/Form/OverridesEntityForm.php

Renders a message to display at the top of the layout builder.

StatusMessages::renderMessages in core/lib/Drupal/Core/Render/Element/StatusMessages.php

#lazy_builder callback; replaces placeholder with messages.

File

core/themes/olivero/templates/misc/status-messages.html.twig

{#
/**
 * @file
 * Theme override for status messages.
 *
 * Displays status, error, and warning messages, grouped by type.
 *
 * An invisible heading identifies the messages for assistive technology.
 * Sighted users see a colored box. See
 * https://www.w3.org/TR/WCAG-TECHS/H69.html for info.
 *
 * Add an ARIA label to the contentinfo area so that assistive technology
 * user agents will better describe this landmark.
 *
 * Available variables:
 * - message_list: List of messages to be displayed, grouped by type.
 * - status_headings: List of all status types.
 * - attributes: HTML attributes for the element, including:
 *   - class: HTML classes.
 */
#}
{{ attach_library('olivero/messages') }}

<div data-drupal-messages class="messages-list">
  {% for type, messages in message_list %}
    {%
      set classes = [
      'messages-list__item',
      'messages',
      'messages--' ~ type,
    ]
    %}

    <div{{ attributes
      .addClass(classes)
      .setAttribute('data-drupal-selector', 'messages')
      .setAttribute('role', 'contentinfo')
      .setAttribute('aria-label', status_headings[type])
      }}>
      <div class="messages__container" data-drupal-selector="messages-container"{% if type == 'error' %} role="alert"{% endif %}>
        {% if status_headings[type] %}
          <div class="messages__header">
           <h2 class="visually-hidden">{{ status_headings[type] }}</h2>
            <div class="messages__icon">
              {% if type == 'error' %}
                {% include "@olivero/../images/error.svg" %}
              {% elseif type == 'warning' %}
                {% include "@olivero/../images/warning.svg" %}
              {% elseif type == 'status' %}
                {% include "@olivero/../images/status.svg" %}
              {% elseif type == 'info' %}
                {% include "@olivero/../images/info.svg" %}
              {% endif %}
            </div>
          </div>
        {% endif %}
        <div class="messages__content">
          {% if messages|length > 1 %}
            <ul class="messages__list">
              {% for message in messages %}
                <li class="messages__item">{{ message }}</li>
              {% endfor %}
            </ul>
          {% else %}
            {{ messages|first }}
          {% endif %}
        </div>
      </div>
    </div>
    {# Remove type specific classes. #}
    {% set attributes = attributes.removeClass(classes) %}
  {% endfor %}
</div>