Ok, this code should set you on the right path. It’s not designed to do exactly what you want, but judging by your code above, you seem fairly compitent, so should be able to amend as required. I’d also recommend looking at the Walker_Page Class, that way you can compare the methods below to those definded by Walker_Page, and see what has been changed (wp-includes/post-template.php).
Place this in functions.php, and then when calling wp_list_pages($args), be sure to include the argument 'walker' => new Walker_Custom_Page.
<?
/**
* Custom Walker for creating the page list.
*/
class Walker_Custom_Page extends Walker_Page {
/**
* @see Walker::start_lvl()
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of page. Used for padding.
*/
function start_lvl(&$output, $depth) {
$indent = str_repeat("\t", $depth);
$output .= "\n{$indent}<ul class="children">\n";
}
/**
* @see Walker::start_el()
*
* @param string $output Passed by reference. Used to append additional content
* @param object $page Page data object
* @param int $depth Depth of page. Used for padding
* @param array $args
* @param int $current_page Page ID
*/
function start_el(&$output, $page, $depth, $args, $current_page) {
/** Add an indent (if required) before the page */
if($depth) :
$indent = str_repeat("\t", $depth);
else :
$indent="";
endif;
/** Make 'new_href' and 'image' arrays to avoid errors if it is empty */
if(!is_array($args['new_href'])) : $args['new_href'] = array($args['new_href']); endif;
/** Check to see if an alternitive link has been specified and set the $link_href **/
if(array_key_exists((string)$page->ID, $args['new_href'])) :
$link_href = $args['new_href'][(string)$page->ID];
$target="";
elseif(array_key_exists('_'.(string)$page->ID, $args['new_href'])) :
$link_href = $args['new_href']['_'.(string)$page->ID];
$target=" target="_blank"";
else :
$link_href = get_permalink($page->ID);
$target="";
endif;
/** Make the link for the page */
$page_children = get_pages('child_of=".$page->ID);
$link_in = (in_array($page->ID, $args["no_link'])) ? '<a>' : '<a href="'.$link_href.'"'.$target.'>';
$link_out="</a>";
$link_after = (count($page_children) !== 0 && $depth !== 0) ? ' »' : false;
$link = $link_in.$link_before.apply_filters('the_title', $page->post_title, $page->ID).$link_after.$link_out;
/** Extract the args */
extract($args, EXTR_SKIP);
/** Make the CSS class for the link */
$css_class = array('page_item', 'page-item-'.$page->ID);
$current_page = apply_filters('change_current_page', $current_page);
if(!empty($current_page)) :
$_current_page = get_page($current_page);
_get_post_ancestors($_current_page);
if(isset($_current_page->ancestors) && in_array($page->ID, (array) $_current_page->ancestors)) :
$css_class[] = 'current_page_ancestor';
endif;
if($page->ID == $current_page) :
$css_class[] = 'current_page_item';
elseif($_current_page && $page->ID == $_current_page->post_parent) :
$css_class[] = 'current_page_parent';
endif;
elseif($page->ID == get_option('page_for_posts')) :
$css_class[] = 'current_page_parent';
endif;
/** Filter the page CSS class so that extra can be added */
$css_id = $css_class[1];
$css_class = implode(' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page));
/** Add the page link to $output */
$output .= $indent . '<li id="'.$css_id.'" class="' . $css_class . '">' . $link;
/** Add the time that the page was modified (if desired) */
if(!empty($show_date)) :
if('modified' == $show_date) :
$time = $page->post_modified;
else :
$time = $page->post_date;
endif;
$output .= ' '.mysql2date($date_format, $time);
endif;
}
}
?>