Users with no build plan capabilities should see "New Build Plan" button as greyed out and a modal dialog explaining the policy.

Summary: Fixes T7499, New Build Plan button should be greyed out in Harbormaster list view.

Test Plan: Login as non-admin user, navigate to Harbormaster, New Build Plan button should be greyed out and clicking it should result in a "You Shall Not Pass" modal dialog that does not navigate away from build list view.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley

Maniphest Tasks: T7499

Differential Revision: https://secure.phabricator.com/D12559

src/applications/harbormaster/controller/HarbormasterController.php

@@ -5,10 +5,15 @@ abstract class HarbormasterController extends PhabricatorController {
   protected function buildApplicationCrumbs() {
     $crumbs = parent::buildApplicationCrumbs();
 
+    $can_create = $this->hasApplicationCapability(
+        HarbormasterManagePlansCapability::CAPABILITY);
+
     $crumbs->addAction(
       id(new PHUIListItemView())
         ->setName(pht('New Build Plan'))
         ->setHref($this->getApplicationURI('plan/edit/'))
+        ->setDisabled(!$can_create)
+        ->setWorkflow(!$can_create)
         ->setIcon('fa-plus-square'));
 
     return $crumbs;