function translation_language_switch_links_alter

Implements hook_language_switch_links_alter().

Replaces links with pointers to translated versions of the content.

File

modules/translation/translation.module, line 543

Code

function translation_language_switch_links_alter(array &$links, $type, $path) {
    $language_type = variable_get('translation_language_type', LANGUAGE_TYPE_INTERFACE);
    if ($type == $language_type && preg_match("!^node/(\\d+)(/.+|)!", $path, $matches)) {
        $node = node_load((int) $matches[1]);
        if (empty($node->tnid)) {
            // If the node cannot be found nothing needs to be done. If it does not
            // have translations it might be a language neutral node, in which case we
            // must leave the language switch links unaltered. This is true also for
            // nodes not having translation support enabled.
            if (empty($node) || entity_language('node', $node) == LANGUAGE_NONE || !translation_supported_type($node->type)) {
                return;
            }
            $langcode = entity_language('node', $node);
            $translations = array(
                $langcode => $node,
            );
        }
        else {
            $translations = translation_node_get_translations($node->tnid);
        }
        foreach ($links as $langcode => $link) {
            if (isset($translations[$langcode]) && $translations[$langcode]->status) {
                // Translation in a different node.
                $links[$langcode]['href'] = 'node/' . $translations[$langcode]->nid . $matches[2];
            }
            else {
                // No translation in this language, or no permission to view.
                unset($links[$langcode]['href']);
                $links[$langcode]['attributes']['class'][] = 'locale-untranslated';
            }
        }
    }
}