now come the downside of the blog-software wordperss: Custom Menus.
Good: You can arrange Menu items through the backend (Dashboard -> Design -> Menu -> Create new Menu -> Add Links, Categories, Pages, Posts… whatever you want)
but to design-div-wise customize your menu you need 4x things:
1. have a menu designed in dashboard-backend.
2. register menus in functions.php
[cc lang=”php” escaped=”true” width=”600″]
register_nav_menus( array(
‘lang’ => __( ‘Sprachen’, ‘residium’ )
) );
[/cc]
3. a terribly complicated nav-walker-class definition in functions.php
[cc lang=”php” escaped=”true” width=”600″]
class wp_lang_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() ) {
$indent = str_repeat( “\t”, $depth );
$output .= “\n$indent
- \n”;
- ‘;
} else if ( strcasecmp( $item->title, ‘divider’) == 0 && $depth === 1 ) {
$output .= $indent . ‘ - ‘;
} else if ( strcasecmp( $item->attr_title, ‘dropdown-header’) == 0 && $depth === 1 ) {
$output .= $indent . ‘ - ‘ . esc_attr( $item->title );
} else if ( strcasecmp($item->attr_title, ‘disabled’ ) == 0 ) {
$output .= $indent . ‘ - ‘ . esc_attr( $item->title ) . ‘‘;
} else {$class_names = $value = ”;
$classes = empty( $item->classes ) ? array() : (array) $item->classes;
$classes[] = ‘menu-item-‘ . $item->ID;$class_names = join( ‘ ‘, apply_filters( ‘nav_menu_css_class’, array_filter( $classes ), $item, $args ) );
if ( $args->has_children )
$class_names .= ‘ dropdown’;if ( in_array( ‘current-menu-item’, $classes ) )
$class_names .= ‘ active’;$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();
$atts[‘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’] = ‘#’;
$atts[‘data-toggle’] = ‘dropdown’;
$atts[‘class’] = ‘dropdown-toggle’;
$atts[‘aria-haspopup’] = ‘true’;
} else {
$atts[‘href’] = ! empty( $item->url ) ? $item->url : ”;
}$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 ( ! empty( $item->attr_title ) )
$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
*
* @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 .= ‘
- Add a menu
}
/**
* @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 ) {
$indent = ( $depth ) ? str_repeat( “\t”, $depth ) : ”;
/**
* 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 . ‘
‘;
$fb_output .= ‘
‘;
if ( $container )
$fb_output .= ‘' . $container . '>‘;
echo $fb_output;
}
}
}
[/cc]
4. in your theme call the menu-creation-function:
[cc lang=”php” escaped=”true” width=”600″]
[/cc]
liked this article?
- only together we can create a truly free world
- plz support dwaves to keep it up & running!
- (yes the info on the internet is (mostly) free but beer is still not free (still have to work on that))
- really really hate advertisement
- contribute: whenever a solution was found, blog about it for others to find!
- talk about, recommend & link to this blog and articles
- thanks to all who contribute!