access.php

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<?php

$access_class = 'elgg-access';

//sort out the access level for display
if (isset($vars['entity']) && elgg_instanceof($vars['entity'])) {
    $access_id = $vars['entity']->access_id;

    // if within a group or shared access collection display group name and open/closed membership status
    // @todo have a better way to do this instead of checking against subtype / class.
    $container = $vars['entity']->getContainerEntity();

    if ($container && $container instanceof ElggGroup) {
        // we decided to show that the item is in a group, rather than its actual access level
        // not required. Group ACLs are prepended with "Group: " when written.
        //$access_id_string = elgg_echo('groups:group') . $container->name;
        $membership = $container->membership;

        if ($membership == ACCESS_PUBLIC) {
            $access_class .= ' elgg-access-group-open';
        } else {
            $access_class .= ' elgg-access-group-closed';
        }

        // @todo this is plugin specific code in core. Should be removed.
    } elseif ($container && $container->getSubtype() == 'shared_access') {
        $access_class .= ' shared_collection';
    } elseif ($access_id == ACCESS_PRIVATE) {
        $access_class .= ' elgg-access-private';
    }
} else if (isset($vars['value'])) {
    $access_id = $vars['value'];
}

if (!isset($access_id)) {
    return true;
}

$access_id_string = get_readable_access_level($access_id);

echo elgg_format_element([
    '#tag_name' => 'span',
    'title' => elgg_echo('access:help'),
    'class' => $access_class,
    '#text' => $access_id_string,
    '#options' => [
        'encode_text' => true,
    ],
]);