WordPress Navigation - How to add data-hover inside the Menu items? - css

Question

i want to use some of this Creative Link Effects inside my Webside - http://tympanus.net/codrops/2013/08/06/creative-link-effects/
The modernizer.js i allready placed inside the header.php
How do i add the "data-hover" inside the Menu items.
Actually the menu looks in this way:
<ul class="menu" id="menu-informationen-aus">
<li class="menu-item menu-item-type-custom menu-item-object-custom menu-item-39" id="menu-item-39">Nachrichten</li>
<li class="menu-item menu-item-type-custom menu-item-object-custom menu-item-40" id="menu-item-40">Veranstaltungen</li>
<li class="menu-item menu-item-type-custom menu-item-object-custom menu-item-41" id="menu-item-41">Vereine</li>
<li class="menu-item menu-item-type-custom menu-item-object-custom menu-item-42" id="menu-item-42">Bildungseinrichtungen</li>
<li class="menu-item menu-item-type-custom menu-item-object-custom menu-item-43" id="menu-item-43">Stadtbibliothek</li>

Answer 1

You can use a Custom Walker to add attributes to the menu items (http://codex.wordpress.org/Function_Reference/wp_nav_menu#Using_a_Custom_Walker_Function)
Then your PHP would look something like:
wp_nav_menu( array(
'container' =>false,
'menu_class' => 'nav',
'echo' => true,
'before' => '',
'after' => '',
'link_before' => '',
'link_after' => '',
'depth' => 0,
'walker' => new your_walker())
);
You Then need to create a class that extends Walker_Nav_Menu. It'll look something like this:
class description_walker extends Walker_Nav_Menu
{
function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
$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 ) );
$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 . '<li' . $id . $value . $class_names .'>';
$atts = array();
$atts['title'] = ! empty( $item->attr_title ) ? $item->attr_title : '';
$atts['target'] = ! empty( $item->target ) ? $item->target : '';
$atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : '';
$atts['href'] = ! empty( $item->url ) ? $item->url : '';
$atts['data-hover'] = 'Desultory';
$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 .= '<a'. $attributes .'>';
/** This filter is documented in wp-includes/post-template.php */
$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
$item_output .= '</a>';
$item_output .= $args->after;
$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
}
}
You can find this example within wordpress, under: wp-includes/nav-menu-template.php
The important line here is:
$atts['data-hover'] = 'Desultory';