public static function get_instance()
{
if (null == self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
private function __construct()
{
$plugin = WP_Maintenance_Mode::get_instance();
$this->plugin_slug = $plugin->get_plugin_slug();
$this->plugin_settings = $plugin->get_plugin_settings();
$this->plugin_default_settings = $plugin->default_settings();
$this->plugin_basename = plugin_basename(WPMM_PATH . $this->plugin_slug . '.php');
// Load admin style sheet and JavaScript.
add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_styles'));
add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_scripts'));
// Add the options page and menu item.
add_action('admin_menu', array($this, 'add_plugin_menu'));
// Add an action link pointing to the options page
if (is_multisite() && is_plugin_active_for_network($this->plugin_basename)) {
// settings link will point to admin_url of the main blog, not to network_admin_url
add_filter('network_admin_plugin_action_links_' . $this->plugin_basename, array($this, 'add_settings_link'));
} else {
add_filter('plugin_action_links_' . $this->plugin_basename, array($this, 'add_settings_link'));
}
// Add admin notices
add_action('admin_notices', array($this, 'add_notices'));
// Add ajax methods
add_action('wp_ajax_wpmm_subscribers_export', array($this, 'subscribers_export'));
add_action('wp_ajax_wpmm_subscribers_empty_list', array($this, 'subscribers_empty_list'));
add_action('wp_ajax_wpmm_dismiss_notices', array($this, 'dismiss_notices'));
add_action('wp_ajax_wpmm_reset_settings', array($this, 'reset_settings'));
// Add text to footer
add_filter('admin_footer_text', array($this, 'admin_footer_text'), 5);
}
