function &setFrontendClass($uiclass)
{
if (is_object($GLOBALS['_PEAR_FRONTEND_SINGLETON']) && is_a($GLOBALS['_PEAR_FRONTEND_SINGLETON'], $uiclass)) {
return $GLOBALS['_PEAR_FRONTEND_SINGLETON'];
}
if (!class_exists($uiclass)) {
$file = str_replace('_', '/', $uiclass) . '.php';
if (PEAR_Frontend::isIncludeable($file)) {
include_once $file;
}
}
if (class_exists($uiclass)) {
$obj =& new $uiclass();
// quick test to see if this class implements a few of the most
// important frontend methods
if (method_exists($obj, 'userConfirm')) {
$GLOBALS['_PEAR_FRONTEND_SINGLETON'] =& $obj;
$GLOBALS['_PEAR_FRONTEND_CLASS'] = $uiclass;
return $obj;
} else {
$err = PEAR::raiseError("not a frontend class: {$uiclass}");
return $err;
}
}
$err = PEAR::raiseError("no such class: {$uiclass}");
return $err;
}
