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<?php |
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/** |
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* LSX functions and definitions - Bootstrap Navigation Walker |
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* |
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* @package lsx |
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* @subpackage navigation |
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* @category bootstrap-navigation-walker |
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*/ |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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if ( ! class_exists( 'Walker_Nav_Menu' ) ) { |
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return; |
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} |
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if ( ! class_exists( 'LSX_Bootstrap_Navwalker' ) ) : |
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/** |
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* Cleaner Bootstrap walker |
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* |
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* @package lsx |
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* @subpackage navigation |
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* @category bootstrap-navigation-walker |
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*/ |
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class LSX_Bootstrap_Navwalker extends Walker_Nav_Menu { |
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/** |
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* Used to append additional content. |
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* |
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* @see Walker::start_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 $depth Depth of page. Used for padding. |
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*/ |
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public function start_lvl( &$output, $depth = 0, $args = array() ) { |
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$indent = str_repeat( "\t", $depth ); |
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$output .= "\n$indent<ul role=\"menu\" class=\" dropdown-menu\">\n"; |
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} |
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/** |
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* Used to append additional content. |
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* @param string $item Passed by reference. |
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*/ |
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public function filter_default_pages( &$item ) { |
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return $item; |
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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 $args |
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*/ |
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public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) { |
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$indent = ( $depth ) ? str_repeat( "\t", $depth ) : ''; |
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/** |
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* If this is a default menu being called we need to fix |
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* the item object thats coming through. |
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*/ |
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if ( ! isset( $item->title ) ) { |
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return; |
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} |
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/** |
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* Dividers, Headers or Disabled |
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* ============================= |
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* Determine whether the item is a Divider, Header, Disabled or regular |
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* menu item. To prevent errors we use the strcasecmp() function to so a |
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* comparison that is not case sensitive. The strcasecmp() function returns |
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* a 0 if the strings are equal. |
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*/ |
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if ( 0 == strcasecmp( $item->attr_title, 'divider' ) && 1 === $depth ) { |
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$output .= $indent . '<li role="presentation" class="divider">'; |
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} elseif ( 0 == strcasecmp( $item->title, 'divider' ) && 1 === $depth ) { |
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$output .= $indent . '<li role="presentation" class="divider">'; |
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} elseif ( 0 == strcasecmp( $item->attr_title, 'dropdown-header' ) && 1 === $depth ) { |
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$output .= $indent . '<li role="presentation" class="dropdown-header">' . esc_attr( $item->title ); |
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} elseif ( 0 == strcasecmp( $item->attr_title, 'disabled' ) ) { |
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$output .= $indent . '<li role="presentation" class="disabled"><a href="#">' . esc_attr( $item->title ) . '</a>'; |
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} else { |
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$class_names = ''; |
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$value = ''; |
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$classes = empty( $item->classes ) ? array() : (array) $item->classes; |
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$classes[] = 'menu-item-' . $item->ID; |
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$classes = apply_filters( 'lsx_nav_menu_css_class', array_filter( $classes ), $item, $args, $depth ); |
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$class_names = join( ' ', $classes ); |
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if ( $args->has_children ) |
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$class_names .= ' dropdown'; |
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if ( in_array( 'current-menu-item', $classes ) ) |
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$class_names .= ' active'; |
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if ( in_array( 'current-menu-parent', $classes ) ) |
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$class_names .= ' active'; |
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//Check if this is ment to be a "social" type menu |
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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 : $item->title; |
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$atts['target'] = ! empty( $item->target ) ? $item->target : ''; |
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$atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : ''; |
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// If item has_children add atts to a. |
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if ( $args->has_children ) { |
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$atts['href'] = ! empty( $item->url ) ? $item->url : ''; |
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$atts['data-toggle'] = 'dropdown'; |
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$atts['class'] = 'dropdown-toggle'; |
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$atts['aria-haspopup'] = 'true'; |
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} else { |
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$atts['href'] = ! empty( $item->url ) ? $item->url : ''; |
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} |
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$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 .= ( $args->has_children && 0 === $depth ) ? ' <span class="caret"></span></a>' : '</a>'; |
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$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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/** |
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* Traverse elements to create list from elements. |
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* |
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* Display one element if the element doesn't have any children otherwise, |
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* display the element and its children. Will only traverse up to the max |
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* depth and no ignore elements under that depth. |
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* |
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* This method shouldn't be called directly, use the walk() method instead. |
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* |
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* @see Walker::start_el() |
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* @since 2.5.0 |
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* |
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* @param object $element Data object |
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* @param array $children_elements List of elements to continue traversing. |
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* @param int $max_depth Max depth to traverse. |
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* @param int $depth Depth of current element. |
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* @param array $args |
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* @param string $output Passed by reference. Used to append additional content. |
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* @return null Null on failure with no changes to parameters. |
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*/ |
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public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) { |
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if ( ! $element ) { |
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return; |
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} |
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$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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parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output ); |
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} |
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/** |
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* Menu Fallback |
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* ============= |
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* If this function is assigned to the wp_nav_menu's fallback_cb variable |
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* and a manu has not been assigned to the theme location in the WordPress |
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* menu manager the function with display nothing to a non-logged in user, |
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* and will add a link to the WordPress menu manager if logged in as an admin. |
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* |
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* @param array $args passed from the wp_nav_menu function. |
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* |
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*/ |
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public static function fallback( $args ) { |
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if ( current_user_can( 'manage_options' ) ) { |
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$fb_output = null; |
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if ( $args['container'] ) { |
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$fb_output = '<' . $args['container']; |
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if ( $args['container_id'] ) { |
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$fb_output .= ' id="' . $args['container_id'] . '"'; |
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} |
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if ( $args['container_class'] ) { |
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$fb_output .= ' class="' . $args['container_class'] . '"'; |
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} |
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$fb_output .= '>'; |
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} |
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$fb_output .= '<ul'; |
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if ( $args['menu_id'] ) { |
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$fb_output .= ' id="' . $args['menu_id'] . '"'; |
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} |
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if ( $args['menu_class'] ) { |
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$fb_output .= ' class="' . $args['menu_class'] . '"'; |
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} |
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$fb_output .= '>'; |
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$fb_output .= '<li><a href="' . esc_url( admin_url( 'nav-menus.php' ) ) . '">' . esc_html__( 'Add a menu', 'lsx' ) . '</a></li>'; |
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$fb_output .= '</ul>'; |
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if ( $args['container'] ) { |
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$fb_output .= '</' . $args['container'] . '>'; |
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} |
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echo wp_kses_post( $fb_output ); |
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} |
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} |
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} |
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endif; |
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