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<?php /** * Class Name: wp_bootstrap_navwalker * GitHub URI: https://github.com/twittem/wp-bootstrap-navwalker * Description: A custom WordPress nav walker class to implement the Bootstrap 3 navigation style in a custom theme using the WordPress built in menu manager. * Version: 2.0.4 * Author: Edward McIntyre - @twittem * License: GPL-2.0+ * License URI: http://www.gnu.org/licenses/gpl-2.0.txt */ class wp_bootstrap_navwalker extends Walker_Nav_Menu { /** * @see Walker::start_lvl() * @since 3.0.0 * * @param string $output Passed by reference. Used to append additional content. * @param int $depth Depth of page. Used for padding. */ public function start_lvl( &$output, $depth = 0, $args = array() ) { global $megamenu, $megachildren, $el_counter; $indent = str_repeat( "\t", $depth ); if ( $megamenu == 'megamenu' ) { switch ($megachildren) { case 1: $columns = 'mega-menu-one'; break; case 2: $columns = 'mega-menu-two'; break; case 3: $columns = 'mega-menu-three'; break; case 4: $columns = 'mega-menu-four'; break; case 5: $columns = 'mega-menu-five'; break; case 6: $columns = 'mega-menu-six'; break; case 7: $columns = 'mega-menu-seven'; break; case 8: $columns = 'mega-menu-eight'; break; } $output .= "\n$indent<ul role=\"menu\" class=\"mega-menu-inner in-mega $columns\">\n"; } else $output .= "\n$indent<ul role=\"menu\" class=\"drop-menu\">\n"; } /** * @see Walker::start_el() * @since 3.0.0 * * @param string $output Passed by reference. Used to append additional content. * @param object $item Menu item data object. * @param int $depth Depth of menu item. Used for padding. * @param int $current_page Menu item ID. * @param object $args */ public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) { global $megamenu, $megachildren, $wpdb, $menutype, $el_counter; $description = ''; $icon_html = ''; $badge_html = ''; $megamenu = $item->megamenu; if ($megamenu == 'megamenu') { if ($args->has_children) { $megachildren = $wpdb->get_var($wpdb->prepare("SELECT COUNT(*) FROM $wpdb->postmeta WHERE meta_key = %s AND meta_value = %d", '_menu_item_menu_item_parent', $item->ID)); } } $indent = ( $depth ) ? str_repeat( "\t", $depth ) : ''; if ($item->description !== '' && ($menutype === 'menu-overlay' || $menutype === 'menu-overlay-center')) { $description = '<span class="menu-item-description">' . $item->description . '</span>'; } /** * Get the icon */ if ( ! empty( $item->icon )) { $icon_html = '<i class="menu-icon ' . esc_attr( $item->icon ) . '"></i>'; } /** * Get badge */ if ( apply_filters( 'uncode_activate_menu_badges', false ) ) { $badge_html = uncode_print_menu_badge_item( $item ); } $span_counter = ''; // if ($depth === 0) { // $el_counter++; // $span_counter = '<span class="nav-menu-item-counter">' . esc_html( sprintf( '%02d', $el_counter ) ) . '</span>'; // } /** * Dividers, Headers or Disabled * ============================= * Determine whether the item is a Divider, Header, Disabled or regular * menu item. To prevent errors we use the strcasecmp() function to so a * comparison that is not case sensitive. The strcasecmp() function returns * a 0 if the strings are equal. */ if ( strcasecmp( $item->attr_title, 'divider' ) == 0 && $depth === 1 ) { $output .= $indent . '<li role="presentation" class="divider">'; } else if ( strcasecmp( $item->title, 'divider') == 0 && $depth === 1 ) { $output .= $indent . '<li role="presentation" class="divider">'; } else if ( strcasecmp( $item->attr_title, 'dropdown-header') == 0 && $depth === 1 ) { $output .= $indent . '<li role="presentation" class="dropdown-header">' . esc_attr( $item->title ); } else if ( strcasecmp($item->attr_title, 'disabled' ) == 0 ) { $output .= $indent . '<li role="presentation" class="disabled"><a href="#"><span>' . esc_attr( $item->title ) . $span_counter . '</span></a>'; } else if ( strcasecmp($item->megamenu, 'megamenu' ) == 0 && $depth === 0 ) { $classes = empty( $item->classes ) ? array() : (array) $item->classes; $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) ); $class_names = $class_names ? ' ' . esc_attr( $class_names ) : ''; $output .= $indent . '<li class="mega-menu'.$class_names.'"><a href="'.(! empty( $item->url ) ? $item->url : '#').'">' . $icon_html . esc_attr( $item->title ) . $badge_html . '<i class="fa fa-angle-down fa-dropdown"></i>' . $description . $span_counter . '</a>'; } else { $class_names = $value = ''; $classes = empty( $item->classes ) ? array() : (array) $item->classes; $classes[] = 'menu-item-' . $item->ID; if ($item->button) { $classes[] = 'menu-btn-container'; } if ( $args->has_children ) { $classes[] = 'dropdown'; } if ( in_array( 'current-menu-item', $classes )) { $parse_link = parse_url($item->url); if (!isset($parse_link['fragment'])) { $classes[] = 'active'; } } if ($item->button) { if ($depth === 0) { $el_counter--; $span_counter = ''; } $classes[] = 'btn'; } else { if ($depth === 0) { $classes[] = 'menu-item-link'; } } $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) ); $class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : ''; $id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args ); $raw_id = intval( $item->ID ); $id = $id ? ' id="' . esc_attr( $id ) . '"' : ''; $output .= $indent . '<li' . $id . $value . (!$item->button ? $class_names : ' class="menu-item-button"') . '>'; $atts = array(); $atts['title'] = ! empty( $item->attr_title ) ? $item->attr_title : (! empty( $item->title ) ? $item->title : ''); $atts['target'] = ! empty( $item->target ) ? $item->target : ''; $atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : ''; // If item has_children add atts to a. if ( $args->has_children && $depth === 0 ) { $atts['href'] = ! empty( $item->url ) ? $item->url : '#'; $atts['data-toggle'] = 'dropdown'; $atts['class'] = 'dropdown-toggle'; } else { $atts['href'] = ! empty( $item->url ) ? $item->url : ''; } if ( $badge_html ) { $atts['class'] = isset( $atts['class'] ) ? $atts['class'] . ' has-badge' : 'has-badge'; } $atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args ); $attributes = ''; foreach ( $atts as $attr => $value ) { if ( ! empty( $value ) ) { $value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value ); $attributes .= ' ' . $attr . '="' . $value . '"'; } } $item_output = $args->before; /* * Glyphicons * =========== * Since the the menu item is NOT a Divider or Header we check the see * if there is a value in the attr_title property. If the attr_title * property is NOT null we apply it as the class name for the glyphicon. */ if (!isset($item->logo) && !$item->logo) { if ( ! empty( $item->icon ) && ! $item->button ) { $item_output .= '<a'. $attributes .'>' . $icon_html; } else { $item_output .= ( $args->has_children) ? '<a'. $attributes .' data-type="title">' : '<a'. $attributes .'>'; } if ($item->button) { $item_output .= '<div class="menu-btn-table"><div class="menu-btn-cell"><div'.$class_names.'><span>' . $args->link_before . ( ! empty( $item->icon ) ? '<i class="menu-icon ' . esc_attr( $item->icon ) . '"></i>' : '') . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after . '</span></div></div></div>' . $badge_html . $description . $span_counter . '</a>'; } else { $item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $badge_html . $args->link_after; $item_output .= ( $args->has_children) ? '<i class="fa fa-angle-down fa-dropdown"></i>' . $description . $span_counter . '</a>' : '<i class="fa fa-angle-right fa-dropdown"></i>' . $description . $span_counter . '</a>'; } } else { $item_output .= $item->title; } $item_output .= $args->after; $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args ); } } /** * Traverse elements to create list from elements. * * Display one element if the element doesn't have any children otherwise, * display the element and its children. Will only traverse up to the max * depth and no ignore elements under that depth. * * This method shouldn't be called directly, use the walk() method instead. * * @see Walker::start_el() * @since 2.5.0 * * @param object $element Data object * @param array $children_elements List of elements to continue traversing. * @param int $max_depth Max depth to traverse. * @param int $depth Depth of current element. * @param array $args * @param string $output Passed by reference. Used to append additional content. * @return null Null on failure with no changes to parameters. */ public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) { if ( ! $element ) { return; } $id_field = $this->db_fields['id']; // Display this element. if ( is_object( $args[0] ) ) { $args[0]->has_children = ! empty( $children_elements[ $element->$id_field ] ); } parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output ); } /** * Menu Fallback * ============= * If this function is assigned to the wp_nav_menu's fallback_cb variable * and a manu has not been assigned to the theme location in the WordPress * menu manager the function with display nothing to a non-logged in user, * and will add a link to the WordPress menu manager if logged in as an admin. * * @param array $args passed from the wp_nav_menu function. * */ public static function fallback( $args ) { if ( current_user_can( 'manage_options' ) ) { extract( $args ); $fb_output = null; if ( $container ) { $fb_output = '<' . $container; if ( $container_id ) { $fb_output .= ' id="' . $container_id . '"'; } if ( $container_class ) { $fb_output .= ' class="' . $container_class . '"'; } $fb_output .= '>'; } $fb_output .= '<ul'; if ( $menu_id ) { $fb_output .= ' id="' . $menu_id . '"'; } if ( $menu_class ) { $fb_output .= ' class="' . $menu_class . '"'; } $fb_output .= '>'; $fb_output .= '<li><a href="' . admin_url( 'nav-menus.php' ) . '">Add a menu</a></li>'; $fb_output .= '</ul>'; if ( $container ) { $fb_output .= '</' . $container . '>'; } return $fb_output; } } } /** * Navigation Menu widget class extended * * @since 3.0.0 */ class Uncode_Nav_Menu_Widget extends WP_Nav_Menu_Widget { function widget($args, $instance) { // Get menu $nav_menu = ! empty( $instance['nav_menu'] ) ? wp_get_nav_menu_object( $instance['nav_menu'] ) : false; if ( !$nav_menu ) { return; } $instance['title'] = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base ); echo wp_kses_post( $args['before_widget'] ); if ( !empty($instance['title']) ) { echo wp_kses_post( $args['before_title'] . $instance['title'] . $args['after_title'] ); } wp_nav_menu( array( 'fallback_cb' => '', 'menu' => $nav_menu, 'menu_class' => isset($args['menu_class']) ? $args['menu_class'] : 'menu' ) ); echo wp_kses_post( $args['after_widget'] ); } } if ( function_exists( 'uncode_custom_menu_widget' ) ) { add_action("widgets_init", "uncode_custom_menu_widget"); }
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