/**
* Loads a specified flow controller
*
* @since 1.1
*
* @param string|ShoppFlowController $controller The name of the controller class or a controller instance
* @return bool True if a controller is set and initialized, false otherwise
**/
public function handler($controller = null)
{
if (defined('WP_ADMIN') && is_null($controller) && isset($_GET['page'])) {
$controller = $this->Admin->controller($_GET['page']);
}
if (!$controller) {
return false;
}
if (is_a($this->Controller, $controller)) {
return true;
}
// Already initialized
if (!class_exists($controller)) {
return false;
}
if (ShoppFlow::welcome()) {
$controller = 'ShoppAdminWelcome';
}
$this->Controller = new $controller();
do_action('shopp_' . sanitize_key($controller) . '_init');
return true;
}
