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<?php |
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/** |
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* @package Polylang |
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*/ |
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|
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/** |
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* Manages custom menus translations |
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* Common to admin and frontend for the customizer |
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* |
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* @since 1.7.7 |
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*/ |
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class PLL_Nav_Menu { |
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public $model, $options; |
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|
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/** |
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* Constructor: setups filters and actions |
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* |
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* @since 1.7.7 |
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* |
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* @param object $polylang |
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*/ |
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public function __construct( &$polylang ) { |
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$this->model = &$polylang->model; |
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$this->options = &$polylang->options; |
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|
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$this->theme = get_option( 'stylesheet' ); |
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|
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add_filter( 'wp_setup_nav_menu_item', array( $this, 'wp_setup_nav_menu_item' ) ); |
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|
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// Integration with WP customizer |
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add_action( 'customize_register', array( $this, 'create_nav_menu_locations' ), 5 ); |
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|
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// Filter _wp_auto_add_pages_to_menu by language |
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add_action( 'transition_post_status', array( $this, 'auto_add_pages_to_menu' ), 5, 3 ); // before _wp_auto_add_pages_to_menu |
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} |
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|
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/** |
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* Assigns the title and label to the language switcher menu items |
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* |
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* @since 2.6 |
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* |
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* @param object $item Menu item. |
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* @return object |
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*/ |
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public function wp_setup_nav_menu_item( $item ) { |
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if ( '#pll_switcher' === $item->url ) { |
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$item->post_title = __( 'Languages', 'polylang' ); |
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$item->type_label = __( 'Language switcher', 'polylang' ); |
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} |
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return $item; |
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} |
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|
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/** |
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* Create temporary nav menu locations ( one per location and per language ) for all non-default language |
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* to do only one time |
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* |
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* @since 1.2 |
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*/ |
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public function create_nav_menu_locations() { |
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static $once; |
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global $_wp_registered_nav_menus; |
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|
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$arr = array(); |
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|
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if ( isset( $_wp_registered_nav_menus ) && ! $once ) { |
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foreach ( $_wp_registered_nav_menus as $loc => $name ) { |
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foreach ( $this->model->get_languages_list() as $lang ) { |
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$arr[ $this->combine_location( $loc, $lang ) ] = $name . ' ' . $lang->name; |
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} |
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} |
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|
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$_wp_registered_nav_menus = $arr; |
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$once = true; |
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} |
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} |
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|
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/** |
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* Creates a temporary nav menu location from a location and a language |
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* |
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* @since 1.8 |
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* |
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* @param string $loc nav menu location |
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* @param object $lang |
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* @return string |
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*/ |
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public function combine_location( $loc, $lang ) { |
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return $loc . ( strpos( $loc, '___' ) || $this->options['default_lang'] === $lang->slug ? '' : '___' . $lang->slug ); |
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} |
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|
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/** |
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* Get nav menu locations and language from a temporary location |
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* |
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* @since 1.8 |
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* |
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* @param string $loc temporary location |
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* @return array |
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* 'location' => nav menu location |
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* 'lang' => language slug |
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*/ |
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public function explode_location( $loc ) { |
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$infos = explode( '___', $loc ); |
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if ( 1 == count( $infos ) ) { |
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$infos[] = $this->options['default_lang']; |
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} |
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return array_combine( array( 'location', 'lang' ), $infos ); |
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} |
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|
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/** |
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* Filters the option nav_menu_options for auto added pages to menu |
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* |
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* @since 0.9.4 |
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* |
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* @param array $options |
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* @return array Modified options |
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*/ |
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public function nav_menu_options( $options ) { |
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$options['auto_add'] = array_intersect( $options['auto_add'], $this->auto_add_menus ); |
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return $options; |
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} |
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|
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/** |
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* Filters _wp_auto_add_pages_to_menu by language |
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* |
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* @since 0.9.4 |
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* |
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* @param string $new_status Transition to this post status. |
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* @param string $old_status Previous post status. |
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* @param object $post Post data. |
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*/ |
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public function auto_add_pages_to_menu( $new_status, $old_status, $post ) { |
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if ( 'publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type || ! empty( $post->post_parent ) ) { |
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return; |
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} |
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|
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if ( ! empty( $this->options['nav_menus'][ $this->theme ] ) ) { |
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$this->auto_add_menus = array(); |
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|
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$lang = $this->model->post->get_language( $post->ID ); |
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$lang = empty( $lang ) ? $this->options['default_lang'] : $lang->slug; // If the page has no language yet, the default language will be assigned |
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|
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// Get all the menus in the page language |
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foreach ( $this->options['nav_menus'][ $this->theme ] as $loc ) { |
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if ( ! empty( $loc[ $lang ] ) ) { |
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$this->auto_add_menus[] = $loc[ $lang ]; |
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} |
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} |
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|
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add_filter( 'option_nav_menu_options', array( $this, 'nav_menu_options' ) ); |
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} |
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} |
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} |
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