wp_nav_menu dropdown walker

  • Hello

    Hope you guys are great. I have put a wp_nav_menu() in a theme with depth (0) meaning that it will have a structure like (roughly)

    • Company
    • about
    • contact

    now the dropdown is being handled through superfish and its great. however, superfish adds a span <span href=”arrow”></span> through javascript just before the start of submenu

      to add an arrow showing a dropdown.

    However, this happens when the page is full loaded and all of a sudden an arrow springs on many menu items jittering the whole menu left/right.

    Could you tell me how I could achieve that I add a span before start of submenu

      through nav_menu options or a custom walker to achieve this.

      Warm regards

      Khuram

Viewing 3 replies - 1 through 3 (of 3 total)
  • Thread Starter kjavaid

    (@kjavaid)

    Hello

    I tried to find any good tutorial on writing walkers. Could anyone point me. Or more specifically, could anyone tell me how I can find and insert code when wp_nav_menu is about to go inside a dropdown menu

      Its not really possible to differentiate in the current design using only css.

      However it is pretty clean to do it in js, example with jquery:

      $('#header ul#nav > li').has('ul').children('a').addClass('submenu-indicator-down'); // top level
$('#header ul#nav li li').has('ul').children('a').addClass('submenu-indicator-right'); // all other levels

      You can follow any responses to simplify css code dropdovn menu.
      1) Add a class parent for items that have a submenu
      2) add depth class (depth0 , depth1, depth2 …)

      add to function.php your theme

      class DD_Wolker_Menu extends Walker_Nav_Menu {
	function display_element( $element, &$children_elements, $max_depth, $depth=0, $args, &$output ){
	    $GLOBALS['dd_children'] = ( isset($children_elements[$element->ID]) )? 1:0;
        $GLOBALS['dd_depth'] = (int) $depth;
        parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output );
    }
}
add_filter('nav_menu_css_class','add_parent_css',10,2);
function  add_parent_css($classes, $item){
     global  $dd_depth, $dd_children;
     $classes[] = 'depth'.$dd_depth;
     if($dd_children)
         $classes[] = 'parent';
    return $classes;
}

      now in header.php

      wp_nav_menu( array( 'container_class' => '','container' => '',  'menu' => 'header-menu', 'walker'=> new DD_Wolker_Menu ) );

      header-menu replaced by the name of your menu

      CSS simplified code may be the

      #menu-header-menu{
    margin: 0;
    padding: 0;
}
#menu-header-menu  ul{

}

#menu-header-menu> li{
    display: inline;
    margin-left: 1.618em;
}
#menu-header-menu  li{
    list-style: none;
}
#menu-header-menu  li a{
    text-decoration: none;
    font-size: 	1em;
    font-family:	'Lato',Helvetica,Arial,sans-serif ;
    letter-spacing:	1px;
}
#menu-header-menu li.parent::after{
    content:'+';
}

#menu-header-menu  .sub-menu {
   display: none;
   position: absolute;
   background-color: #fff;
}

#menu-header-menu  li:hover>.sub-menu{
    display: inline;
    width: auto;
    height: auto;
    border: solid 1px #BBBBBB;
    z-index: +1;
}

      #menu-header-menu – id the main UL list

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