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class primary_navigation_schema_rewrite extends Walker_Nav_Menu { |
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// add classes to ul sub-menus |
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function start_lvl( &$output, $depth = 0, $args = array() ) { |
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// depth dependent classes |
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$indent = ( $depth > 0 ? str_repeat( "\t", $depth ) : '' ); // code indent |
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$display_depth = ( $depth + 1); // because it counts the first submenu as 0 |
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$classes = array( |
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'sub-menu', |
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( $display_depth % 2 ? 'menu-odd' : 'menu-even' ), |
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( $display_depth >=2 ? 'sub-sub-menu' : '' ), |
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'menu-depth-' . $display_depth |
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); |
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$class_names = implode( ' ', $classes ); |
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// build html |
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$output .= "\n" . $indent . '<ul class="' . $class_names . '">' . "\n"; |
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} |
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// add main/sub classes to li's and links |
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function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) { |
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global $wp_query; |
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$indent = ( $depth > 0 ? str_repeat( "\t", $depth ) : '' ); // code indent |
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// depth dependent classes |
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$depth_classes = array( |
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( $depth == 0 ? 'main-menu-item' : 'sub-menu-item' ), |
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( $depth >=2 ? 'sub-sub-menu-item' : '' ), |
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( $depth % 2 ? 'menu-item-odd' : 'menu-item-even' ), |
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'menu-item-depth-' . $depth |
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); |
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$depth_class_names = esc_attr( implode( ' ', $depth_classes ) ); |
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// passed classes |
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$classes = empty( $item->classes ) ? array() : (array) $item->classes; |
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$class_names = esc_attr( implode( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) ) ); |
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// build html |
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$output .= $indent . '<li id="nav-menu-item-'. $item->ID . '" class="' . $depth_class_names . ' ' . $class_names . '" itemprop="name">'; |
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// link attributes |
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$attributes = ! empty( $item->attr_title ) ? ' title="' . esc_attr( $item->attr_title ) .'"' : ''; |
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$attributes .= ! empty( $item->target ) ? ' target="' . esc_attr( $item->target ) .'"' : ''; |
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$attributes .= ! empty( $item->xfn ) ? ' rel="' . esc_attr( $item->xfn ) .'"' : ''; |
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$attributes .= ! empty( $item->url ) ? ' href="' . esc_attr( $item->url ) .'"' : ''; |
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$attributes .= ' class="menu-link ' . ( $depth > 0 ? 'sub-menu-link' : 'main-menu-link' ) . '"'; |
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$item_output = sprintf( '%1$s<a%2$s title="%3$s%4$s%5$s" itemprop="url">%3$s%4$s%5$s</a>%6$s', |
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$args->before, |
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$attributes, |
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$args->link_before, |
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apply_filters( 'the_title', $item->title, $item->ID ), |
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$args->link_after, |
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$args->after |
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); |
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// build html |
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$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args ); |
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} |
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} |
