Show an additional "Draft" tag on non-broadcasting revisions in a non-draft state

Summary:
Depends on D19284. Ref T13110. It's now possible to get a revision into a "Abandoned + But, Never Promoted From Draft" state. Show this in the header and provide the draft hint above the comment area.

Also, remove `shouldBroadcast()`. The method `getShouldBroadcast()` now has the same meaning.

Finally, migrate existing drafts to `shouldBroadcast = false` and default `shouldBroadcast` to `true`. If we don't do this, every older revision becomes a non-broadcasting revision because this flag was not explicitly set on revision creation before, only on promotion out of draft.

Test Plan: Ran migration; abandoned draft revisions and ended up in a draft + abandoned state.

Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam

Maniphest Tasks: T13110

Differential Revision: https://secure.phabricator.com/D19285

resources/sql/autopatches/20180403.draft.01.broadcast.php

···
+<?php
+
+$table = new DifferentialRevision();
+$conn = $table->establishConnection('w');
+
+$drafts = $table->loadAllWhere(
+  'status = %s',
+  DifferentialRevisionStatus::DRAFT);
+foreach ($drafts as $draft) {
+  $properties = $draft->getProperties();
+
+  $properties[DifferentialRevision::PROPERTY_SHOULD_BROADCAST] = false;
+
+  queryfx(
+    $conn,
+    'UPDATE %T SET properties = %s WHERE id = %d',
+    id(new DifferentialRevision())->getTableName(),
+    phutil_json_encode($properties),
+    $draft->getID());
+}

src/applications/differential/controller/DifferentialRevisionViewController.php

···
     $status_tag = id(new PHUITagView())
       ->setName($revision->getStatusDisplayName())
       ->setIcon($revision->getStatusIcon())
-      ->setColor($revision->getStatusIconColor())
+      ->setColor($revision->getStatusTagColor())
       ->setType(PHUITagView::TYPE_SHADE);
 
     $view->addProperty(PHUIHeaderView::PROPERTY_STATUS, $status_tag);
+
+    // If the revision is in a status other than "Draft", but not broadcasting,
+    // add an additional "Draft" tag to the header to make it clear that this
+    // revision hasn't promoted yet.
+    if (!$revision->getShouldBroadcast() && !$revision->isDraft()) {
+      $draft_status = DifferentialRevisionStatus::newForStatus(
+        DifferentialRevisionStatus::DRAFT);
+
+      $draft_tag = id(new PHUITagView())
+        ->setName($draft_status->getDisplayName())
+        ->setIcon($draft_status->getIcon())
+        ->setColor($draft_status->getTagColor())
+        ->setType(PHUITagView::TYPE_SHADE);
+
+      $view->addTag($draft_tag);
+    }
 
     return $view;
   }

src/applications/differential/customfield/DifferentialDraftField.php

···
   public function getWarningsForDetailView() {
     $revision = $this->getObject();
 
-    if (!$revision->isDraft()) {
+    if ($revision->getShouldBroadcast()) {
       return array();
     }
 

src/applications/differential/editor/DifferentialTransactionEditor.php

···
     PhabricatorLiskDAO $object,
     array $xactions) {
 
-    if (!$object->shouldBroadcast()) {
+    if (!$object->getShouldBroadcast()) {
       return false;
     }
 
···
     PhabricatorLiskDAO $object,
     array $xactions) {
 
-    if (!$object->shouldBroadcast()) {
+    if (!$object->getShouldBroadcast()) {
       return false;
     }
 
···
 
     // If the object is still a draft, prevent "Send me an email" and other
     // similar rules from acting yet.
-    if (!$object->shouldBroadcast()) {
+    if (!$object->getShouldBroadcast()) {
       $adapter->setForbiddenAction(
         HeraldMailableState::STATECONST,
         DifferentialHeraldStateReasons::REASON_DRAFT);

src/applications/differential/storage/DifferentialRevision.php

···
     return $this->getStatusObject()->getIconColor();
   }
 
+  public function getStatusTagColor() {
+    return $this->getStatusObject()->getTagColor();
+  }
+
   public function getStatusObject() {
     $status = $this->getStatus();
     return DifferentialRevisionStatus::newForStatus($status);
···
     return $this;
   }
 
-  public function shouldBroadcast() {
-    if (!$this->isDraft()) {
-      return true;
-    }
-
-    return false;
-  }
-
   public function getHoldAsDraft() {
     return $this->getProperty(self::PROPERTY_DRAFT_HOLD, false);
   }
···
   }
 
   public function getShouldBroadcast() {
-    return $this->getProperty(self::PROPERTY_SHOULD_BROADCAST, false);
+    return $this->getProperty(self::PROPERTY_SHOULD_BROADCAST, true);
   }
 
   public function setShouldBroadcast($should_broadcast) {
···
   public function getRemovedLineCount() {
     return $this->getProperty(self::PROPERTY_LINES_REMOVED);
   }
-
 
   public function getBuildableStatus($phid) {
     $buildables = $this->getProperty(self::PROPERTY_BUILDABLES);