function rdf_preprocess_username

Implements hook_preprocess_HOOK() for username.html.twig.

File

core/modules/rdf/rdf.module, line 416

Code

function rdf_preprocess_username(&$variables) {
    // Because lang is set on the HTML element that wraps the page, the
    // username inherits this language attribute. However, since the username
    // might not be transliterated to the same language that the content is in,
    // we do not want it to inherit the language attribute, so we set the
    // attribute to an empty string.
    if (empty($variables['attributes']['lang'])) {
        $variables['attributes']['lang'] = '';
    }
    // The profile URI is used to identify the user account. The about attribute
    // is used to set the URI as the default subject of the properties embedded
    // as RDFa in the child elements. Even if the user profile is not accessible
    // to the current user, we use its URI in order to identify the user in RDF.
    // We do not use this attribute for the anonymous user because we do not have
    // a user profile URI for it (only a homepage which cannot be used as user
    // profile in RDF.)
    if ($variables['uid'] > 0) {
        $variables['attributes']['about'] = Url::fromRoute('entity.user.canonical', [
            'user' => $variables['uid'],
        ])->toString();
    }
    // Add RDF type of user.
    $mapping = rdf_get_mapping('user', 'user');
    $bundle_mapping = $mapping->getPreparedBundleMapping();
    if (!empty($bundle_mapping['types'])) {
        $variables['attributes']['typeof'] = $bundle_mapping['types'];
    }
    // Annotate the username in RDFa. A property attribute is used with an empty
    // datatype attribute to ensure the username is parsed as a plain literal
    // in RDFa 1.0 and 1.1.
    $name_mapping = $mapping->getPreparedFieldMapping('name');
    if (!empty($name_mapping)) {
        $variables['attributes']['property'] = $name_mapping['properties'];
        $variables['attributes']['datatype'] = '';
    }
    // Add the homepage RDFa markup if present.
    $homepage_mapping = $mapping->getPreparedFieldMapping('homepage');
    if (!empty($variables['homepage']) && !empty($homepage_mapping)) {
        $variables['attributes']['rel'] = $homepage_mapping['properties'];
    }
    // Long usernames are truncated by template_preprocess_username(). Store the
    // full name in the content attribute so it can be extracted in RDFa.
    if ($variables['truncated']) {
        $variables['attributes']['content'] = $variables['name_raw'];
    }
}