public function validateDonePage(PHUIFormPageView $page)
 {
     $c_activate = $page->getControl('activate');
     $v_activate = $c_activate->getValue();
     if ($v_activate != 'start' && $v_activate != 'wait') {
         $c_activate->setError(pht('Required'));
         $page->addPageError(pht('Make a choice about repository activation.'));
     }
     return $c_activate->isValid();
 }
 protected function isLastPage(PHUIFormPageView $page)
 {
     return $this->getPageIndex($page->getKey()) === count($this->pages) - 1;
 }