Embed dashboard panels in comments

Summary: Fixes T4983, Panel prefix 'W' should be recognized as a shortcut to a dashboard panel

Test Plan: Open any comment input, type '{W1}', or other existing panel, preview should embed that panel.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Maniphest Tasks: T4983

Differential Revision: https://secure.phabricator.com/D9215

src/__phutil_library_map__.php

@@ -1489,6 +1489,7 @@ phutil_register_library_map(array(
     'PhabricatorDashboardPanelTypeText' => 'applications/dashboard/paneltype/PhabricatorDashboardPanelTypeText.php',
     'PhabricatorDashboardPanelViewController' => 'applications/dashboard/controller/PhabricatorDashboardPanelViewController.php',
     'PhabricatorDashboardQuery' => 'applications/dashboard/query/PhabricatorDashboardQuery.php',
+    'PhabricatorDashboardRemarkupRule' => 'applications/dashboard/remarkup/PhabricatorDashboardRemarkupRule.php',
     'PhabricatorDashboardRemovePanelController' => 'applications/dashboard/controller/PhabricatorDashboardRemovePanelController.php',
     'PhabricatorDashboardRenderingEngine' => 'applications/dashboard/engine/PhabricatorDashboardRenderingEngine.php',
     'PhabricatorDashboardSearchEngine' => 'applications/dashboard/query/PhabricatorDashboardSearchEngine.php',
@@ -4284,6 +4285,7 @@ phutil_register_library_map(array(
     'PhabricatorDashboardPanelTypeText' => 'PhabricatorDashboardPanelType',
     'PhabricatorDashboardPanelViewController' => 'PhabricatorDashboardController',
     'PhabricatorDashboardQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
+    'PhabricatorDashboardRemarkupRule' => 'PhabricatorRemarkupRuleObject',
     'PhabricatorDashboardRemovePanelController' => 'PhabricatorDashboardController',
     'PhabricatorDashboardRenderingEngine' => 'Phobject',
     'PhabricatorDashboardSearchEngine' => 'PhabricatorApplicationSearchEngine',

src/applications/dashboard/application/PhabricatorApplicationDashboard.php

@@ -41,6 +41,12 @@ final class PhabricatorApplicationDashboard extends PhabricatorApplication {
     );
   }
 
+  public function getRemarkupRules() {
+    return array(
+      new PhabricatorDashboardRemarkupRule(),
+    );
+  }
+
   public function shouldAppearInLaunchView() {
     return false;
   }

src/applications/dashboard/remarkup/PhabricatorDashboardRemarkupRule.php

@@ -0,0 +1,30 @@
+<?php
+
+final class PhabricatorDashboardRemarkupRule
+  extends PhabricatorRemarkupRuleObject {
+
+  protected function getObjectNamePrefix() {
+    return 'W';
+  }
+
+  protected function loadObjects(array $ids) {
+    $viewer = $this->getEngine()->getConfig('viewer');
+
+    return id(new PhabricatorDashboardPanelQuery())
+      ->setViewer($viewer)
+      ->withIDs($ids)
+      ->execute();
+
+  }
+
+  protected function renderObjectEmbed($object, $handle, $options) {
+    $viewer = $this->getEngine()->getConfig('viewer');
+
+    return id(new PhabricatorDashboardPanelRenderingEngine())
+      ->setViewer($viewer)
+      ->setPanel($object)
+      ->setParentPanelPHIDs(array())
+      ->renderPanel();
+
+  }
+}