/**
* Load plugin
*
* 1. Load translation
* 2. Set plugin data (directory and URL paths)
* 3. Attach plugin initialization at icon_picker_init hook
*
* @since 0.1.0
* @wp_hook action plugins_loaded
* @link http://codex.wordpress.org/Plugin_API/Action_Reference/plugins_loaded
*/
public static function _load()
{
load_plugin_textdomain('menu-icons', false, dirname(plugin_basename(__FILE__)) . '/languages/');
self::$data = array('dir' => plugin_dir_path(__FILE__), 'url' => plugin_dir_url(__FILE__), 'types' => array());
// Load Icon Picker.
if (!class_exists('Icon_Picker')) {
$ip_file = self::$data['dir'] . 'includes/library/icon-picker/icon-picker.php';
if (file_exists($ip_file)) {
require_once $ip_file;
} else {
add_action('admin_notices', array(__CLASS__, '_notice_missing_icon_picker'));
return;
}
}
Icon_Picker::instance();
require_once self::$data['dir'] . 'includes/library/compat.php';
require_once self::$data['dir'] . 'includes/library/functions.php';
require_once self::$data['dir'] . 'includes/meta.php';
Menu_Icons_Meta::init();
add_action('icon_picker_init', array(__CLASS__, '_init'), 9);
}
/**
* Add icon to menu item title
*
* @since 0.1.0
* @since 0.9.0 Renamed the method to `add_icon()`.
* @wp_hook filter the_title
* @param string $title Menu item title.
* @param int $id Menu item ID.
*
* @return string
*/
public static function _add_icon($title, $id)
{
$meta = Menu_Icons_Meta::get($id);
$icon = self::get_icon($meta);
if (empty($icon)) {
return $title;
}
$title_class = !empty($meta['hide_label']) ? self::$hidden_label_class : '';
$title_wrapped = sprintf('<span%s>%s</span>', !empty($title_class) ? sprintf(' class="%s"', esc_attr($title_class)) : '', $title);
if ('after' === $meta['position']) {
$title_with_icon = "{$title_wrapped}{$icon}";
} else {
$title_with_icon = "{$icon}{$title_wrapped}";
}
/**
* Allow plugins/themes to override menu item markup
*
* @since 0.8.0
*
* @param string $title_with_icon Menu item markup after the icon is added.
* @param integer $id Menu item ID.
* @param array $meta Menu item metadata values.
* @param string $title Original menu item title.
*
* @return string
*/
$title_with_icon = apply_filters('menu_icons_item_title', $title_with_icon, $id, $meta, $title);
return $title_with_icon;
}
/**
* Save menu item's icons metadata
*
* @since 0.1.0
* @access protected
* @wp_hook action wp_update_nav_menu_item
* @link http://codex.wordpress.org/Plugin_API/Action_Reference/wp_update_nav_menu_item
*
* @param int $menu_id Nav menu ID.
* @param int $menu_item_db_id Menu item ID.
* @param array $menu_item_args Menu item data.
*/
public static function _save($menu_id, $menu_item_db_id, $menu_item_args)
{
if (defined('DOING_AJAX') && DOING_AJAX) {
return;
}
$screen = get_current_screen();
if (!$screen instanceof WP_Screen || 'nav-menus' !== $screen->id) {
return;
}
check_admin_referer('update-nav_menu', 'update-nav-menu-nonce');
// Sanitize
if (!empty($_POST['menu-icons'][$menu_item_db_id])) {
$value = array_map('sanitize_text_field', wp_unslash((array) $_POST['menu-icons'][$menu_item_db_id]));
} else {
$value = array();
}
Menu_Icons_Meta::update($menu_item_db_id, $value);
}