gistfile1.php

/**
 * Retruns cat as buttons children for isotope loop 
 */
function woocommerce_get_cat_children(){
    if (is_product_category()) {
        global $wp_query;
        $cat 			= $wp_query->get_queried_object();
        $catID 			= $cat->term_id;
        $taxonomy_name 	= "product_cat";
        $termchildren = get_term_children( $catID, $taxonomy_name );
        echo "<div ok-key='filter' opt-kind=''>";
	    echo '<button ok-sel="*" class="button" ng-click="showall()">Show All</button>';
			foreach ( $termchildren as $child ) {
				$term = get_term_by( 'id', $child, $taxonomy_name );
				echo '<button ok-sel=".'.$term->slug.'" class="button filtercats" ng-click="removeallother(\''.$term->slug.'\')" markable>' . $term->name . '</button>';
			}
		echo "</div>";
    }
    if ( is_shop() ){
        global $wp_query;
        $cat 			= $wp_query->get_queried_object();
        $catID 			= $cat->term_id;
		$args = array(
			'type'                     => 'product',
			'child_of'                 => 0,
			'orderby'                  => 'name',
			'order'                    => 'ASC',
			'hide_empty'               => 1,
			'hierarchical'             => 0,
			'depth'					   => 1,
			'taxonomy'                 => 'product_cat',
		); 
        $categories = get_categories( $args );
        echo "<div ok-key='filter' opt-kind=''>";
	    echo '<button ok-sel="*" class="button" ng-click="showall()">Show All</button>';
			foreach ( $categories as $child ) {
				if($child->parent == 0){	
					echo '<button ok-sel=".'.$child->slug.'" class="button filtercats" ng-click="removeallother(\''.$child->slug.'\')" markable>' . $child->name . '</button>';
				}
			}
		echo "</div>";

    }    

}