\n";
}
/**
* Start El.
*
* @see Walker::start_el()
* @since 3.0.0
*
* @access public
* @param mixed $output Passed by reference. Used to append additional content.
* @param mixed $item Menu item data object.
* @param int $depth (default: 0) Depth of menu item. Used for padding.
* @param array $args (default: array()) Arguments.
* @param int $id (default: 0) Menu item ID.
* @return void
*/
public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
$value = '';
$class_names = $value;
$classes = empty( $item->classes ) ? array() : (array) $item->classes;
// Loop through the array and pick out any special classes that need
// to be added to an element other than the main .
$extra_link_classes = array();
$icon_class_string = '';
foreach ( $classes as $key => $class ) {
// test if this is a disabled link.
if ( 'disabled' === $class ) {
$extra_link_classes[] = 'disabled';
unset( $classes[ $key ] );
}
// test for icon classes - Supports Font Awesome and Glyphicons.
if ( 'fa' === $class || 'fa-' === substr( $class, 0, 3 ) ) {
// Because of the abiguity of just 'fa' at the start both
// 'fa' & 'fa-' are tested for with Font Awesome icons.
$icon_class_string .= $class . ' ';
unset( $classes[ $key ] );
} elseif ( 'glyphicons' === substr( $class, 0, 10 ) ) {
// This should be a glyphicon icon class.
$icon_class_string .= $class . ' ';
unset( $classes[ $key ] );
}
}
$classes[] = 'menu-item-' . $item->ID;
// BSv4 classname - as of v4-alpha.
$classes[] = 'nav-item';
// reasign any filtered classes back to the $classes array.
$classes = apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args );
$class_names = join( ' ', $classes );
if ( $args->has_children ) {
$class_names .= ' dropdown';
}
if ( in_array( 'current-menu-item', $classes, true ) || in_array( 'current-menu-parent', $classes, true ) ) {
$class_names .= ' active';
}
$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
$id = apply_filters( 'nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args );
$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
$output .= $indent . '';
$atts = array();
if ( empty( $item->attr_title ) ) {
$atts['title'] = ! empty( $item->title ) ? strip_tags( $item->title ) : '';
} else {
$atts['title'] = $item->attr_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 && 0 === $depth && $args->depth > 1 ) {
$atts['href'] = '#';
$atts['data-toggle'] = 'dropdown';
$atts['aria-haspopup'] = 'true';
$atts['aria-expanded'] = 'false';
$atts['class'] = 'dropdown-toggle nav-link';
} else {
$atts['href'] = ! empty( $item->url ) ? $item->url : '';
$atts['class'] = 'nav-link';
}
// Loop through the array of extra link classes plucked from the
// parent s classes array.
if ( ! empty( $extra_link_classes ) ) {
foreach ( $extra_link_classes as $link_class ) {
if ( ! empty( $link_class ) ) {
// update $atts with the extra class link.
$atts['class'] .= ' ' . esc_attr( $link_class );
// if the modification is a disabled class...
if ( 'disabled' === $link_class ) {
// then # the link so it doesn't point anywhere.
$atts['href'] = '#';
}
}
}
}
$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;
$item_output .= '';
// initiate empty icon var then if we have a string containing icon classes...
$icon_html = '';
if ( ! empty( $icon_class_string ) ) {
// append an with the icon classes to what is output before links.
$icon_html = ' ';
}
$item_output .= $args->link_before . $icon_html . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
$item_output .= '';
$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
*
* @access public
* @param mixed $element Data object.
* @param mixed $children_elements List of elements to continue traversing.
* @param mixed $max_depth Max depth to traverse.
* @param mixed $depth Depth of current element.
* @param mixed $args Arguments.
* @param mixed $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 menu 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( 'edit_theme_options' ) ) {
/* Get Arguments. */
$container = $args['container'];
$container_id = $args['container_id'];
$container_class = $args['container_class'];
$menu_class = $args['menu_class'];
$menu_id = $args['menu_id'];
// initialize var to store fallback html.
$fallback_output = '';
if ( $container ) {
$fallback_output = '<' . esc_attr( $container );
if ( $container_id ) {
$fallback_output = ' id="' . esc_attr( $container_id ) . '"';
}
if ( $container_class ) {
$fallback_output = ' class="' . sanitize_html_class( $container_class ) . '"';
}
$fallback_output = '>';
}
$fallback_output = '' . esc_attr( 'Add a menu', '' ) . '';
$fallback_output = '';
if ( $container ) {
$fb_output = '';
}
// if $args has 'echo' key and it's true echo, otherwise return.
if ( array_key_exists( 'echo', $args ) && $args['echo'] ) {
echo $fallback_output; // WPCS: XSS OK.
} else {
return $fallback_output;
}
} // End if().
}
}
} // End if().