function uls_language_selector_shortcode($atts)
{
extract(shortcode_atts(array('url' => null, 'type' => 'links', 'url_type' => 'prefix', 'only_language' => true, 'class' => null), $atts));
//if URL is null, then it uses the current URL
if (null == $url) {
$url = uls_get_browser_url();
}
if ("false" == $only_language) {
$only_language = false;
}
return uls_language_link_switch($url, $url_type, $type, $only_language, $class);
}
function head_reference_translation()
{
//get the id of the current page
$url = isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on" ? "https://" : "http://";
$url .= $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"];
$post_id = url_to_postid($url);
// get all available languages
$languages = uls_get_available_languages();
$curren_code = uls_get_user_language();
// get current language
// delete the current language site
$code_value = array_search($curren_code, $languages);
unset($languages[$code_value]);
// build the url to be tranlation
$url = '';
// get url from where it's using
if (is_home()) {
$url = get_home_url();
} else {
if (is_archive() || is_search() || is_author() || is_category() || is_tag() || is_date()) {
$url = uls_get_browser_url();
}
}
// get browser url
// if exits the url so, translate this
if (!empty($url)) {
// use all available languages and get the url translation
foreach ($languages as $language => $code) {
$translation_url = uls_get_url_translated($url, $code);
echo '<link rel="alternate" hreflang="' . substr($code, 0, 2) . '" href="' . $translation_url . '" />';
}
}
// build url to the home
if (!empty($post_id) && empty($url)) {
// change the filter
global $uls_permalink_convertion;
$uls_permalink_convertion = false;
// use all available languages and get the url translation
foreach ($languages as $language => $code) {
// get the post_id translation if the current page has translation
$translation_id = uls_get_post_translation_id($post_id, $code);
if (!empty($translation_id)) {
$translation_url = uls_get_url_translated(get_permalink($translation_id), $code);
echo '<link rel="alternate" hreflang="' . substr($code, 0, 2) . '" href="' . $translation_url . '" />';
}
}
// leave the global car like it was before
$uls_permalink_convertion = true;
}
}
