Align most revision actions to the new "Draft" state

Summary:
Ref T2543. Most actions are not available for drafts.

Authors can "Request Review" (move out of draft to become a normal revision) or "Abandon".

Non-authors can't do anything (maybe we'll let them do something later -- like "Commandeer"? -- if there's a good reason).

Test Plan: Viewed a draft revision as an author and non-author, saw fewer actions available.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T2543

Differential Revision: https://secure.phabricator.com/D18626

src/applications/differential/xaction/DifferentialRevisionAbandonTransaction.php

@@ -10,7 +10,8 @@ final class DifferentialRevisionAbandonTransaction
     return pht('Abandon Revision');
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return pht('This revision will be abandoned and closed.');
   }
 

src/applications/differential/xaction/DifferentialRevisionAcceptTransaction.php

@@ -10,7 +10,8 @@ final class DifferentialRevisionAcceptTransaction
     return pht("Accept Revision \xE2\x9C\x94");
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return pht('These changes will be approved.');
   }
 

src/applications/differential/xaction/DifferentialRevisionActionTransaction.php

@@ -52,7 +52,8 @@ abstract class DifferentialRevisionActionTransaction
     return DifferentialRevisionEditEngine::ACTIONGROUP_REVISION;
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return null;
   }
 
@@ -103,7 +104,7 @@ abstract class DifferentialRevisionActionTransaction
       if ($label !== null) {
         $field->setCommentActionLabel($label);
 
-        $description = $this->getRevisionActionDescription();
+        $description = $this->getRevisionActionDescription($revision);
         $field->setActionDescription($description);
 
         $group_key = $this->getRevisionActionGroupKey();

src/applications/differential/xaction/DifferentialRevisionCloseTransaction.php

@@ -10,7 +10,8 @@ final class DifferentialRevisionCloseTransaction
     return pht('Close Revision');
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return pht('This revision will be closed.');
   }
 

src/applications/differential/xaction/DifferentialRevisionCommandeerTransaction.php

@@ -10,7 +10,8 @@ final class DifferentialRevisionCommandeerTransaction
     return pht('Commandeer Revision');
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return pht('You will take control of this revision and become its author.');
   }
 
@@ -65,6 +66,11 @@ final class DifferentialRevisionCommandeerTransaction
           'been closed. You can only commandeer open revisions.'));
     }
 
+    if ($object->isDraft()) {
+      throw new Exception(
+        pht('You can not commandeer a draft revision.'));
+    }
+
     if ($this->isViewerRevisionAuthor($object, $viewer)) {
       throw new Exception(
         pht(

src/applications/differential/xaction/DifferentialRevisionPlanChangesTransaction.php

@@ -10,7 +10,8 @@ final class DifferentialRevisionPlanChangesTransaction
     return pht('Plan Changes');
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return pht(
       'This revision will be removed from review queues until it is revised.');
   }
@@ -55,6 +56,11 @@ final class DifferentialRevisionPlanChangesTransaction
   }
 
   protected function validateAction($object, PhabricatorUser $viewer) {
+    if ($object->isDraft()) {
+      throw new Exception(
+        pht('You can not plan changes to a draft revision.'));
+    }
+
     if ($object->isChangePlanned()) {
       throw new Exception(
         pht(

src/applications/differential/xaction/DifferentialRevisionReclaimTransaction.php

@@ -10,7 +10,8 @@ final class DifferentialRevisionReclaimTransaction
     return pht('Reclaim Revision');
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return pht('This revision will be reclaimed and reopened.');
   }
 

src/applications/differential/xaction/DifferentialRevisionRejectTransaction.php

@@ -10,7 +10,8 @@ final class DifferentialRevisionRejectTransaction
     return pht("Request Changes \xE2\x9C\x98");
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return pht('This revision will be returned to the author for updates.');
   }
 
@@ -72,6 +73,11 @@ final class DifferentialRevisionRejectTransaction
           'not own.'));
     }
 
+    if ($object->isDraft()) {
+      throw new Exception(
+        pht('You can not request changes to a draft revision.'));
+    }
+
     if ($this->isViewerFullyRejected($object, $viewer)) {
       throw new Exception(
         pht(

src/applications/differential/xaction/DifferentialRevisionReopenTransaction.php

@@ -10,7 +10,8 @@ final class DifferentialRevisionReopenTransaction
     return pht('Reopen Revision');
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return pht('This revision will be reopened for review.');
   }
 

src/applications/differential/xaction/DifferentialRevisionRequestReviewTransaction.php

@@ -10,8 +10,13 @@ final class DifferentialRevisionRequestReviewTransaction
     return pht('Request Review');
   }
 
-  protected function getRevisionActionDescription() {
-    return pht('This revision will be returned to reviewers for feedback.');
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
+    if ($revision->isDraft()) {
+      return pht('This revision will be submitted to reviewers for feedback.');
+    } else {
+      return pht('This revision will be returned to reviewers for feedback.');
+    }
   }
 
   public function getColor() {

src/applications/differential/xaction/DifferentialRevisionResignTransaction.php

@@ -10,7 +10,8 @@ final class DifferentialRevisionResignTransaction
     return pht('Resign as Reviewer');
   }
 
-  protected function getRevisionActionDescription() {
+  protected function getRevisionActionDescription(
+    DifferentialRevision $revision) {
     return pht('You will resign as a reviewer for this change.');
   }
 
@@ -63,6 +64,11 @@ final class DifferentialRevisionResignTransaction
           'been closed. You can only resign from open revisions.'));
     }
 
+    if ($object->isDraft()) {
+      throw new Exception(
+        pht('You can not resign from a draft revision.'));
+    }
+
     $resigned = DifferentialReviewerStatus::STATUS_RESIGNED;
     if ($this->getViewerReviewerStatus($object, $viewer) == $resigned) {
       throw new Exception(