4 * Default theme implementation for a menu block.
7 * - plugin_id: The ID of the block implementation.
8 * - label: The configured label of the block if visible.
9 * - configuration: A list of the block's configuration values.
10 * - label: The configured label for the block.
11 * - label_display: The display settings for the label.
12 * - provider: The module or other provider that provided this block plugin.
13 * - Block plugin specific settings will also be stored here.
14 * - content: The content of this block.
15 * - attributes: HTML attributes for the containing element.
16 * - id: A valid HTML ID and guaranteed unique.
17 * - title_attributes: HTML attributes for the title element.
18 * - content_attributes: HTML attributes for the content element.
19 * - title_prefix: Additional output populated by modules, intended to be
20 * displayed in front of the main title tag that appears in the template.
21 * - title_suffix: Additional output populated by modules, intended to be
22 * displayed after the main title tag that appears in the template.
24 * Headings should be used on navigation menus that consistently appear on
25 * multiple pages. When this menu block's label is configured to not be
26 * displayed, it is automatically made invisible using the 'visually-hidden' CSS
27 * class, which still keeps it visible for screen-readers and assistive
28 * technology. Headings allow screen-reader and keyboard only users to navigate
29 * to or skip the links.
30 * See http://juicystudio.com/article/screen-readers-display-none.php and
31 * http://www.w3.org/TR/WCAG-TECHS/H42.html for more information.
36 {% set heading_id = attributes.id ~ '-menu'|clean_id %}
37 <nav role="navigation" aria-labelledby="{{ heading_id }}"{{ attributes.removeClass('clearfix')|without('role', 'aria-labelledby') }}>
38 {# Label. If not displayed, we still provide it for screen readers. #}
39 {% if not configuration.label_display %}
40 {% set title_attributes = title_attributes.addClass('sr-only') %}
42 <h2{{ title_attributes.setAttribute('id', heading_id) }}>{{ configuration.label }}</h2>