119 lines
3.8 KiB
PHP
119 lines
3.8 KiB
PHP
<?php
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/**
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* Navigation Menu template functions
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*
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* @package WP/Bootstrap Compatility Layer
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* @subpackage Nav_Menus
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* @since 1.0.0
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*/
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/**
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* Create HTML list of nav menu items.
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*
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* @package WP/Bootstrap Compatility Layer
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* @since 1.0.0
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* @uses Walker_Nav_Menu
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*/
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class Bootstrap_Nav_Menu_Walker extends Walker_Nav_Menu {
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function display_element( $element, &$children_elements, $max_depth, $depth=0, $args, &$output ) {
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$id_field = $this->db_fields['id'];
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if ( is_object( $args[0] ) ) {
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$args[0]->has_children = !empty( $children_elements[$element->$id_field] );
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}
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return parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output );
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}
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/**
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* @see Walker::start_lvl()
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* @since 1.0.0
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*
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* @param string $output Passed by reference. Used to append additional content.
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* @param int $depth Depth of page. Used for padding.
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*/
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function start_lvl( &$output, $depth = 0, $args = array() ) {
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$indent = str_repeat("\t", $depth);
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$output .= "\n$indent<ul class=\"dropdown-menu\">\n";
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}
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/**
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* @see Walker::end_lvl()
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* @since 3.0.0
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*
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* @param string $output Passed by reference. Used to append additional content.
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* @param int $depth Depth of page. Used for padding.
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*/
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function end_lvl( &$output, $depth = 0, $args = array() ) {
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$indent = str_repeat("\t", $depth);
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$output .= "$indent</ul>\n";
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}
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/**
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* @see Walker::start_el()
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* @since 3.0.0
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*
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* @param string $output Passed by reference. Used to append additional content.
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* @param object $item Menu item data object.
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* @param int $depth Depth of menu item. Used for padding.
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* @param int $current_page Menu item ID.
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* @param object $args
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*/
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function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
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$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
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$class_names = $value = '';
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$classes = empty( $item->classes ) ? array() : (array) $item->classes;
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$classes[] = 'menu-item-' . $item->ID;
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if ( $args->has_children )
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$classes[] = 'dropdown';
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$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );
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$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
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$id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args );
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$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
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$output .= $indent . '<li' . $id . $value . $class_names .'>';
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$atts = array();
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$atts['title'] = ! empty( $item->attr_title ) ? $item->attr_title : '';
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$atts['target'] = ! empty( $item->target ) ? $item->target : '';
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$atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : '';
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$atts['href'] = ! empty( $item->url ) ? $item->url : '';
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$atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args );
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$attributes = '';
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foreach ( $atts as $attr => $value ) {
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if ( ! empty( $value ) ) {
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$value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
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$attributes .= ' ' . $attr . '="' . $value . '"';
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}
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}
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$item_output = $args->before;
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$item_output .= '<a'. $attributes .'>';
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$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
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$item_output .= '</a>';
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$item_output .= $args->after;
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$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
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}
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/**
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* @see Walker::end_el()
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* @since 3.0.0
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*
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* @param string $output Passed by reference. Used to append additional content.
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* @param object $item Page data object. Not used.
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* @param int $depth Depth of page. Not Used.
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*/
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function end_el( &$output, $item, $depth = 0, $args = array() ) {
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$output .= "</li>\n";
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}
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}
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