123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336 |
- <?php
- /***********************************************************
- // https://github.com/wp-bootstrap/wp-bootstrap-navwalker //
- // License URI: http://www.gnu.org/licenses/gpl-3.0.txt //
- // note: line 95 add newline to <li> for clean output //
- ***********************************************************/
- // Check if Class Exists.
- if ( ! class_exists( 'WP_Bootstrap_Navwalker' ) ) :
- class WP_Bootstrap_Navwalker extends Walker_Nav_Menu {
- private $has_schema = false;
- public function __construct() {
- if ( ! has_filter( 'wp_nav_menu_args', array( $this, 'add_schema_to_navbar_ul' ) ) ) {
- add_filter( 'wp_nav_menu_args', array( $this, 'add_schema_to_navbar_ul' ) );
- }
- }
- public function start_lvl( &$output, $depth = 0, $args = null ) {
- if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
- $t = '';
- $n = '';
- } else {
- $t = "\t";
- $n = "\n";
- }
- $indent = str_repeat( $t, $depth );
- $classes = array( 'dropdown-menu' );
- $class_names = join( ' ', apply_filters( 'nav_menu_submenu_css_class', $classes, $args, $depth ) );
- $class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
- $labelledby = '';
- preg_match_all( '/(<a.*?id=\"|\')(.*?)\"|\'.*?>/im', $output, $matches );
- if ( end( $matches[2] ) ) {
- $labelledby = 'aria-labelledby="' . esc_attr( end( $matches[2] ) ) . '"';
- }
- $output .= "{$n}{$indent}<ul$class_names $labelledby>{$n}";
- }
- public function start_el( &$output, $item, $depth = 0, $args = null, $id = 0 ) {
- if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
- $t = '';
- $n = '';
- } else {
- $t = "\t";
- $n = "\n";
- }
- $indent = ( $depth ) ? str_repeat( $t, $depth ) : '';
- if ( false !== strpos( $args->items_wrap, 'itemscope' ) && false === $this->has_schema ) {
- $this->has_schema = true;
- $args->link_before = '<span itemprop="name">' . $args->link_before;
- $args->link_after .= '</span>';
- }
- $classes = empty( $item->classes ) ? array() : (array) $item->classes;
- $split_on_spaces = function ( $class ) {
- return preg_split( '/\s+/', $class );
- };
- $classes = $this->flatten( array_map( $split_on_spaces, $classes ) );
- $linkmod_classes = array();
- $icon_classes = array();
- $classes = self::separate_linkmods_and_icons_from_classes( $classes, $linkmod_classes, $icon_classes, $depth );
- $icon_class_string = join( ' ', $icon_classes );
- $args = apply_filters( 'nav_menu_item_args', $args, $item, $depth );
- if ( $this->has_children ) {
- $classes[] = 'dropdown';
- }
- if ( in_array( 'current-menu-item', $classes, true ) || in_array( 'current-menu-parent', $classes, true ) ) {
- $classes[] = 'active';
- }
- $classes[] = 'menu-item-' . $item->ID;
- $classes[] = 'nav-item';
- $classes = apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args, $depth );
- $class_names = join( ' ', $classes );
- $class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
- $id = apply_filters( 'nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args, $depth );
- $id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
- $output .= $indent . '<li ' . $id . $class_names . '>' . $n;
- $atts = array();
- $atts['title'] = ! empty( $item->attr_title ) ? $item->attr_title : '';
- $atts['target'] = ! empty( $item->target ) ? $item->target : '';
- if ( '_blank' === $item->target && empty( $item->xfn ) ) {
- $atts['rel'] = 'noopener noreferrer';
- } else {
- $atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : '';
- }
- if ( $this->has_children && 0 === $depth ) {
- $atts['href'] = '#';
- $atts['data-bs-toggle'] = 'dropdown';
- $atts['aria-haspopup'] = 'true';
- $atts['aria-expanded'] = 'false';
- $atts['class'] = 'dropdown-toggle nav-link';
- $atts['id'] = 'menu-item-dropdown-' . $item->ID;
- } else {
- if ( true === $this->has_schema ) {
- $atts['itemprop'] = 'url';
- }
- $atts['href'] = ! empty( $item->url ) ? $item->url : '#';
- if ( $depth > 0 ) {
- $atts['class'] = 'dropdown-item';
- } else {
- $atts['class'] = 'nav-link';
- }
- }
- $atts['aria-current'] = $item->current ? 'page' : '';
- $atts = self::update_atts_for_linkmod_type( $atts, $linkmod_classes );
- $atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args, $depth );
- $attributes = '';
- foreach ( $atts as $attr => $value ) {
- if ( ! empty( $value ) ) {
- $value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
- $attributes .= ' ' . $attr . '="' . $value . '"';
- }
- }
- $linkmod_type = self::get_linkmod_type( $linkmod_classes );
- $item_output = isset( $args->before ) ? $args->before : '';
- if ( '' !== $linkmod_type ) {
- $item_output .= self::linkmod_element_open( $linkmod_type, $attributes );
- } else {
- $item_output .= '<a' . $attributes . '>';
- }
- $icon_html = '';
- if ( ! empty( $icon_class_string ) ) {
- $icon_html = '<i class="' . esc_attr( $icon_class_string ) . '" aria-hidden="true"></i> ';
- }
- $title = apply_filters( 'the_title', $item->title, $item->ID );
- $title = apply_filters( 'nav_menu_item_title', $title, $item, $args, $depth );
- if ( in_array( 'sr-only', $linkmod_classes, true ) ) {
- $title = self::wrap_for_screen_reader( $title );
- $keys_to_unset = array_keys( $linkmod_classes, 'sr-only', true );
- foreach ( $keys_to_unset as $k ) {
- unset( $linkmod_classes[ $k ] );
- }
- }
- $item_output .= isset( $args->link_before ) ? $args->link_before . $icon_html . $title . $args->link_after : '';
- if ( '' !== $linkmod_type ) {
- $item_output .= self::linkmod_element_close( $linkmod_type );
- } else {
- $item_output .= '</a>';
- }
- $item_output .= isset( $args->after ) ? $args->after : '';
- $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
- }
- public static function fallback( $args ) {
- if ( ! current_user_can( 'edit_theme_options' ) ) {
- return;
- }
- $fallback_output = '';
- $show_container = false;
- if ( $args['container'] ) {
- $allowed_tags = apply_filters( 'wp_nav_menu_container_allowedtags', array( 'div', 'nav' ) );
- if ( is_string( $args['container'] ) && in_array( $args['container'], $allowed_tags, true ) ) {
- $show_container = true;
- $class = $args['container_class'] ? ' class="menu-fallback-container ' . esc_attr( $args['container_class'] ) . '"' : ' class="menu-fallback-container"';
- $id = $args['container_id'] ? ' id="' . esc_attr( $args['container_id'] ) . '"' : '';
- $fallback_output .= '<' . $args['container'] . $id . $class . '>';
- }
- }
- $class = $args['menu_class'] ? ' class="menu-fallback-menu ' . esc_attr( $args['menu_class'] ) . '"' : ' class="menu-fallback-menu"';
- $id = $args['menu_id'] ? ' id="' . esc_attr( $args['menu_id'] ) . '"' : '';
- $fallback_output .= '<ul' . $id . $class . '>';
- $fallback_output .= '<li class="nav-item"><a href="' . esc_url( admin_url( 'nav-menus.php' ) ) . '" class="nav-link" title="' . esc_attr__( 'Add a menu', 'wp-bootstrap-navwalker' ) . '">' . esc_html__( 'Add a menu', 'wp-bootstrap-navwalker' ) . '</a></li>';
- $fallback_output .= '</ul>';
- if ( $show_container ) {
- $fallback_output .= '</' . $args['container'] . '>';
- }
- if ( array_key_exists( 'echo', $args ) && $args['echo'] ) {
- echo $fallback_output;
- } else {
- return $fallback_output;
- }
- }
- public function add_schema_to_navbar_ul( $args ) {
- $wrap = $args['items_wrap'];
- if ( strpos( $wrap, 'SiteNavigationElement' ) === false ) {
- $args['items_wrap'] = preg_replace( '/(>).*>?\%3\$s/', ' itemscope itemtype="http://www.schema.org/SiteNavigationElement"$0', $wrap );
- }
- return $args;
- }
- private function separate_linkmods_and_icons_from_classes( $classes, &$linkmod_classes, &$icon_classes, $depth ) {
- foreach ( $classes as $key => $class ) {
- if ( preg_match( '/^disabled|^sr-only/i', $class ) ) {
- // Test for .disabled or .sr-only classes.
- $linkmod_classes[] = $class;
- unset( $classes[ $key ] );
- } elseif ( preg_match( '/^dropdown-header|^dropdown-divider|^dropdown-item-text/i', $class ) && $depth > 0 ) {
- $linkmod_classes[] = $class;
- unset( $classes[ $key ] );
- } elseif ( preg_match( '/^fa-(\S*)?|^fa(s|r|l|b)?(\s?)?$/i', $class ) ) {
- // Font Awesome.
- $icon_classes[] = $class;
- unset( $classes[ $key ] );
- } elseif ( preg_match( '/^glyphicon-(\S*)?|^glyphicon(\s?)$/i', $class ) ) {
- // Glyphicons.
- $icon_classes[] = $class;
- unset( $classes[ $key ] );
- }
- }
- return $classes;
- }
- private function get_linkmod_type( $linkmod_classes = array() ) {
- $linkmod_type = '';
- // Loop through array of linkmod classes to handle their $atts.
- if ( ! empty( $linkmod_classes ) ) {
- foreach ( $linkmod_classes as $link_class ) {
- if ( ! empty( $link_class ) ) {
- // Check for special class types and set a flag for them.
- if ( 'dropdown-header' === $link_class ) {
- $linkmod_type = 'dropdown-header';
- } elseif ( 'dropdown-divider' === $link_class ) {
- $linkmod_type = 'dropdown-divider';
- } elseif ( 'dropdown-item-text' === $link_class ) {
- $linkmod_type = 'dropdown-item-text';
- }
- }
- }
- }
- return $linkmod_type;
- }
- private function update_atts_for_linkmod_type( $atts = array(), $linkmod_classes = array() ) {
- if ( ! empty( $linkmod_classes ) ) {
- foreach ( $linkmod_classes as $link_class ) {
- if ( ! empty( $link_class ) ) {
- if ( 'sr-only' !== $link_class ) {
- $atts['class'] .= ' ' . esc_attr( $link_class );
- }
- if ( 'disabled' === $link_class ) {
- $atts['href'] = '#';
- unset( $atts['target'] );
- } elseif ( 'dropdown-header' === $link_class || 'dropdown-divider' === $link_class || 'dropdown-item-text' === $link_class ) {
- unset( $atts['href'] );
- unset( $atts['target'] );
- }
- }
- }
- }
- return $atts;
- }
- private function wrap_for_screen_reader( $text = '' ) {
- if ( $text ) {
- $text = '<span class="sr-only">' . $text . '</span>';
- }
- return $text;
- }
- private function linkmod_element_open( $linkmod_type, $attributes = '' ) {
- $output = '';
- if ( 'dropdown-item-text' === $linkmod_type ) {
- $output .= '<span class="dropdown-item-text"' . $attributes . '>';
- } elseif ( 'dropdown-header' === $linkmod_type ) {
- $output .= '<span class="dropdown-header h6"' . $attributes . '>';
- } elseif ( 'dropdown-divider' === $linkmod_type ) {
- // This is a divider.
- $output .= '<div class="dropdown-divider"' . $attributes . '>';
- }
- return $output;
- }
- private function linkmod_element_close( $linkmod_type ) {
- $output = '';
- if ( 'dropdown-header' === $linkmod_type || 'dropdown-item-text' === $linkmod_type ) {
- $output .= '</span>';
- } elseif ( 'dropdown-divider' === $linkmod_type ) {
- // This is a divider.
- $output .= '</div>';
- }
- return $output;
- }
- public function flatten( $array ) {
- $result = array();
- foreach ( $array as $element ) {
- if ( is_array( $element ) ) {
- array_push( $result, ...$this->flatten( $element ) );
- } else {
- $result[] = $element;
- }
- }
- return $result;
- }
- }
- endif;
|