sitepress = $sitepress;
}
private function get_seo_settings() {
$seo_settings = $this->sitepress->get_setting( 'seo', array() );
if ( ! array_key_exists( 'head_langs', $seo_settings ) ) {
$seo_settings['head_langs'] = 1;
}
if ( ! array_key_exists( 'head_langs_priority', $seo_settings ) ) {
$seo_settings['head_langs_priority'] = 1;
}
return $seo_settings;
}
public function init_hooks() {
if ( $this->sitepress->get_wp_api()->is_front_end() ) {
$seo_settings = $this->get_seo_settings();
$head_langs = $seo_settings['head_langs'];
if ( $head_langs ) {
$priority = $seo_settings['head_langs_priority'];
add_action( 'wp_head', array( $this, 'head_langs' ), $priority );
}
}
}
function head_langs() {
$languages = $this->sitepress->get_ls_languages( array( 'skip_missing' => true ) );
$languages = apply_filters( 'wpml_head_langs', $languages );
if ( $this->must_render( $languages ) ) {
$hreflang_items = array();
foreach ( $languages as $lang ) {
$alternate_hreflang = apply_filters( 'wpml_alternate_hreflang', $lang['url'], $lang['code'] );
$hreflang_code = $this->get_hreflang_code( $lang );
if ( $hreflang_code ) {
$hreflang_items[ $hreflang_code ] = str_replace( '&', '&', $alternate_hreflang );
}
}
$hreflang_items = apply_filters( 'wpml_hreflangs', $hreflang_items );
$hreflang = '';
if ( is_array( $hreflang_items ) ) {
foreach ( $hreflang_items as $hreflang_code => $hreflang_url ) {
$hreflang .= '' . PHP_EOL;
}
echo apply_filters( 'wpml_hreflangs_html', $hreflang );
}
}
}
function render_menu() {
$seo = $this->get_seo_settings();
$options = array();
foreach ( array( 1, 10 ) as $priority ) {
$label = __( 'As early as possible', 'sitepress' );
if ( $priority > 1 ) {
$label = sprintf( esc_html__( 'Later in the head section (priority %d)', 'sitepress' ), $priority );
}
$options[ $priority ] = array(
'selected' => ( $priority == $seo['head_langs_priority'] ),
'label' => $label,
);
}
?>
sitepress->get_wp_api()->get_post();
if ( $post ) {
$post_id = $post ? $post->ID : false;
$has_languages = is_array( $languages ) && count( $languages ) > 0 && $this->sitepress->is_translated_post_type( $post->post_type );
$is_single_or_page = $this->sitepress->get_wp_api()->is_single() || $this->sitepress->get_wp_api()->is_page();
$is_published = $is_single_or_page
&& $post_id
&& $this->sitepress->get_wp_api()->get_post_status( $post_id ) === 'publish';
}
return $has_languages && ! $this->sitepress->get_wp_api()->is_paged()
&& ( $is_published
|| ( $this->sitepress->get_wp_api()->is_home()
|| $this->sitepress->get_wp_api()->is_front_page()
|| $this->sitepress->get_wp_api()->is_archive() ) );
}
/**
* @param array $lang
*
* @return string
*/
private function get_hreflang_code( $lang ) {
$tag = $lang['tag'];
$locale = $lang['default_locale'];
$hreflang_code = $this->get_best_code( array( $tag, $locale ) );
$hreflang_code = str_replace( '_', '-', $hreflang_code );
$hreflang_code = strtolower( $hreflang_code );
if ( $this->is_valid_hreflang_code( $hreflang_code ) ) {
return trim( $hreflang_code );
}
return '';
}
private function is_valid_hreflang_code( $code ) {
return strlen( trim( $code ) ) >= 2;
}
private function get_best_code( array $codes ) {
$best_code = null;
foreach ( $codes as $code ) {
if ( strlen( $code ) > strlen( $best_code ) ) {
$best_code = $code;
}
}
return $best_code;
}
}