/**
* parse li, copy from system navmenu by wordpress at /wp-includes/nav-menu-template.php (since wordpress v)
* @param string $output
* @param object $item
* @param int $depth
* @param array $args
* @param int $id
*/
protected function _start_el(&$output, $item, $depth = 0, $args = array(), $id = 0)
{
$args = (object) $args;
//cast to object
//valid
if (!isset($args->before)) {
$args->before = '';
}
if (!isset($args->submenu_before)) {
$args->submenu_before = '';
}
if (!isset($args->after)) {
$args->after = '';
}
if (!isset($args->submenu_after)) {
$args->submenu_after = '';
}
if (!isset($args->link_before)) {
$args->link_before = '';
}
if (!isset($args->submenu_link_before)) {
$args->submenu_link_before = '';
}
if (!isset($args->link_after)) {
$args->link_after = '';
}
if (!isset($args->submenu_link_after)) {
$args->submenu_link_after = '';
}
//whether current menu item has sub menu
$item_has_sub = $this->item_has_sub($item);
//menu item classes
$classes = empty($item->classes) ? array() : (array) $item->classes;
if (!empty($args->ex_separator) && isset($args->show_items_separator)) {
$output .= $args->ex_separator;
}
$data['args'] = clone $args;
$data['indent'] = $indent = $depth ? str_repeat("\t", $depth) : '';
$data['item_has_sub'] = $item_has_sub;
//menu item classes
$classes[] = 'nav' . ++$this->counter;
$classes[] = 'menu-item-' . $item->ID;
if ($item_has_sub && !empty($args->menu_item_class_has_submenu)) {
//menu item class has submenu
$classes[] = $args->menu_item_class_has_submenu;
}
if ($depth > 0 && !empty($args->menu_item_class_submenu)) {
//menu item class in submenu
$classes[] = $args->menu_item_class_submenu;
}
$data['classes'] = $class_names = join(' ', apply_filters('nav_menu_css_class', $this->valid_classes_attr(array_filter($classes)), $item, $args, $depth));
//$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
$id = apply_filters('nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args, $depth);
$data['id'] = $id = $id ? ' id="' . esc_attr($id) . '"' : '';
//custom fields
$custom_item = get_post_custom($item->ID);
$data['field-01'] = isset($custom_item['menu-item-field-01'][0]) ? $custom_item['menu-item-field-01'][0] : '';
$data['field-02'] = isset($custom_item['menu-item-field-02'][0]) ? $custom_item['menu-item-field-02'][0] : '';
/**
* menu item image
*/
if (isset($args->show_icon) && $args->show_icon) {
$image_url = get_post_meta($item->ID, 'menu-item-hw_icon', true);
if ($image_url) {
$image_img = '<img src="' . $image_url . '" class="hw-menu-item-icon"/>';
} else {
$image_img = '';
}
}
#_print(get_post_custom($item->ID));
/**
* menu font icon
*/
#$fonticon_meta = get_post_meta($item->ID, 'menu-icons', true); //Menu_Icons::get_meta( $item->ID );
$fonticon_meta = Menu_Icons::get_meta($item->ID);
$data['fonticon_setting'] = $fonticon_meta;
//font icon setting
$font_icon = HW_Menu_Icons::render_icon($fonticon_meta);
$data['image_url'] = isset($image_url) ? $image_url : '';
$data['image_img'] = isset($image_img) ? $image_img : '';
$data['font_icon'] = isset($font_icon) ? $font_icon : '';
/**
* render nav item
*/
//clear submenu before/after for non-ancestor item
if (!$item_has_sub) {
$data['args']->submenu_before = '';
$data['args']->submenu_after = '';
$data['args']->submenu_link_before = '';
$data['args']->submenu_link_after = '';
}
//anchor attributes
$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 : '';
$atts['class'] = array();
//anchor classes
if ($item_has_sub && !empty($args->anchor_class_has_submenu)) {
//anchor class has submenu
$atts['class'][] = $args->anchor_class_has_submenu;
}
if ($depth > 0 && !empty($args->anchor_class_submenu)) {
//anchor class in submenu
$atts['class'][] = $args->anchor_class_submenu;
}
$atts = apply_filters('nav_menu_link_attributes', $atts, $item, $args, $depth, $this);
//validation
$atts['class'] = $this->valid_classes_attr(array_filter($atts['class']));
$atts['class'] = join(' ', $atts['class']);
$attributes = '';
foreach ($atts as $attr => $value) {
if (!empty($value)) {
$value = 'href' === $attr ? esc_url($value) : esc_attr($value);
$attributes .= ' ' . $attr . '="' . $value . '"';
}
}
//addition attribute build for item link
if ($depth == 0 && !empty($args->anchor_attrs)) {
$attributes .= " {$args->anchor_attrs}";
} elseif ($depth != 0 && !empty($args->anchor_attrs_submenu)) {
$attributes .= " {$args->anchor_attrs_submenu}";
}
//attributes item link for submenu
if ($item_has_sub && !empty($args->anchor_attrs_has_submenu)) {
$attributes .= " {$args->anchor_attrs_has_submenu}";
}
$data['attributes'] = $attributes;
$data['title'] = apply_filters('the_title', $item->title, $item->ID);
$item_output = $args->before;
$item_output .= '<a' . $attributes . '>';
//This filter is documented in wp-includes/post-template.php
$item_output .= $args->link_before . $data['title'] . $args->link_after;
$item_output .= '</a>';
$item_output .= $args->after;
if (isset($args->twig) && HW_NAVMENU::twig_asset_exists('start_el.twig', $args->twig)) {
$tpl = $args->twig->loadTemplate('start_el.twig');
$output .= $tpl->render($data);
} else {
$classes = $class_names ? 'class="' . $class_names . '"' : "";
//class attr
$output .= $indent . '<li' . $id . $classes . '>';
$output .= apply_filters('walker_nav_menu_start_el', $item_output, $item, $depth, (array) $args);
}
}
/**
* modify widget title by insert icon next to title
* @param string $title: widget title
*/
public static function _widget_title_link($title)
{
if (empty($title)) {
return;
}
$icons = self::get_all_widgets_icons($title);
if (!empty($icons)) {
$icon = self::decode_icon($icons['font_icon']);
$title = HW_Menu_Icons::render_icon($icon, '', $title);
}
//HW_Menu_Icons::render_icon();
return $title;
}