Allow entire dashboards to be copied

Summary:
Further improve UX for dealing with policy rules on dashboards:

  - When in the "Manage" view of a dashboard you can not edit:
    - Don't show the panel management controls.
    - Show a notice that the board isn't editable, recommending you make a copy instead.
  - Add a "Copy Dashboard" action to create a copy which you //can// edit.

Test Plan: Copied some dashboards. See screenshots.

Reviewers: chad

Reviewed By: chad

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D9508

src/applications/dashboard/controller/PhabricatorDashboardManageController.php

@@ -28,6 +28,11 @@ final class PhabricatorDashboardManageController
       return new Aphront404Response();
     }
 
+    $can_edit = PhabricatorPolicyFilter::hasCapability(
+      $viewer,
+      $dashboard,
+      PhabricatorPolicyCapability::CAN_EDIT);
+
     $title = $dashboard->getName();
 
     $crumbs = $this->buildApplicationCrumbs();
@@ -45,10 +50,21 @@ final class PhabricatorDashboardManageController
       ->setHeader($header)
       ->addPropertyList($properties);
 
+    if (!$can_edit) {
+      $no_edit = pht(
+        'You do not have permission to edit this dashboard. If you want to '.
+        'make changes, make a copy first.');
+
+      $box->setErrorView(
+        id(new AphrontErrorView())
+          ->setSeverity(AphrontErrorView::SEVERITY_NOTICE)
+          ->setErrors(array($no_edit)));
+    }
+
     $rendered_dashboard = id(new PhabricatorDashboardRenderingEngine())
       ->setViewer($viewer)
       ->setDashboard($dashboard)
-      ->setArrangeMode(true)
+      ->setArrangeMode($can_edit)
       ->renderDashboard();
 
     return $this->buildApplicationPage(
@@ -93,6 +109,13 @@ final class PhabricatorDashboardManageController
         ->setDisabled(!$can_edit)
         ->setWorkflow(!$can_edit));
 
+    $actions->addAction(
+      id(new PhabricatorActionView())
+        ->setName(pht('Copy Dashboard'))
+        ->setIcon('fa-files-o')
+        ->setHref($this->getApplicationURI("copy/{$id}/"))
+        ->setWorkflow(true));
+
     $installed_dashboard = id(new PhabricatorDashboardInstall())
       ->loadOneWhere(
         'objectPHID = %s AND applicationClass = %s',