Show users what's wrong when they try to edit an inline with an editor already open

Summary: Fixes T8572. Ideally we would probably just permit this, but clean up the behavior until the day arrives when inline code is actually rewritten.

Test Plan:
  - Tried to launch editors in Differential and Diffusion while comments were already open.
  - Verified that "Jump to inline" works in both cases.

{F788008}

{F788009}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T8572

Differential Revision: https://secure.phabricator.com/D14094

resources/celerity/map.php

@@ -11,7 +11,7 @@ return array(
     'core.pkg.js' => '47dc9ebb',
     'darkconsole.pkg.js' => 'e7393ebb',
     'differential.pkg.css' => '2de124c9',
-    'differential.pkg.js' => '52d725be',
+    'differential.pkg.js' => '6223dd9d',
     'diffusion.pkg.css' => '385e85b3',
     'diffusion.pkg.js' => '0115b37c',
     'maniphest.pkg.css' => '4845691a',
@@ -357,13 +357,13 @@ return array(
     'rsrc/js/application/dashboard/behavior-dashboard-query-panel-select.js' => '453c5375',
     'rsrc/js/application/dashboard/behavior-dashboard-tab-panel.js' => 'd4eecc63',
     'rsrc/js/application/differential/ChangesetViewManager.js' => '58562350',
-    'rsrc/js/application/differential/DifferentialInlineCommentEditor.js' => 'd4c87bf4',
+    'rsrc/js/application/differential/DifferentialInlineCommentEditor.js' => '64a5550f',
     'rsrc/js/application/differential/behavior-add-reviewers-and-ccs.js' => 'e10f8e18',
     'rsrc/js/application/differential/behavior-comment-jump.js' => '4fdb476d',
     'rsrc/js/application/differential/behavior-comment-preview.js' => 'b064af76',
     'rsrc/js/application/differential/behavior-diff-radios.js' => 'e1ff79b1',
     'rsrc/js/application/differential/behavior-dropdown-menus.js' => '2035b9cb',
-    'rsrc/js/application/differential/behavior-edit-inline-comments.js' => '037b59eb',
+    'rsrc/js/application/differential/behavior-edit-inline-comments.js' => '65ef6074',
     'rsrc/js/application/differential/behavior-keyboard-nav.js' => '2c426492',
     'rsrc/js/application/differential/behavior-populate.js' => '8694b1df',
     'rsrc/js/application/differential/behavior-toggle-files.js' => 'ca3f91eb',
@@ -517,7 +517,7 @@ return array(
     'conpherence-widget-pane-css' => '775eaaba',
     'differential-changeset-view-css' => 'b6b0d1bb',
     'differential-core-view-css' => '7ac3cabc',
-    'differential-inline-comment-editor' => 'd4c87bf4',
+    'differential-inline-comment-editor' => '64a5550f',
     'differential-revision-add-comment-css' => 'c47f8c40',
     'differential-revision-comment-css' => '14b8565a',
     'differential-revision-history-css' => '0e8eb855',
@@ -568,7 +568,7 @@ return array(
     'javelin-behavior-differential-comment-jump' => '4fdb476d',
     'javelin-behavior-differential-diff-radios' => 'e1ff79b1',
     'javelin-behavior-differential-dropdown-menus' => '2035b9cb',
-    'javelin-behavior-differential-edit-inline-comments' => '037b59eb',
+    'javelin-behavior-differential-edit-inline-comments' => '65ef6074',
     'javelin-behavior-differential-feedback-preview' => 'b064af76',
     'javelin-behavior-differential-keyboard-navigation' => '2c426492',
     'javelin-behavior-differential-populate' => '8694b1df',
@@ -853,14 +853,6 @@ return array(
       'javelin-behavior-device',
       'phabricator-title',
     ),
-    '037b59eb' => array(
-      'javelin-behavior',
-      'javelin-stratcom',
-      'javelin-dom',
-      'javelin-util',
-      'javelin-vector',
-      'differential-inline-comment-editor',
-    ),
     '048330fa' => array(
       'javelin-behavior',
       'javelin-typeahead-ondemand-source',
@@ -1289,6 +1281,22 @@ return array(
       'javelin-workflow',
       'javelin-dom',
     ),
+    '64a5550f' => array(
+      'javelin-dom',
+      'javelin-util',
+      'javelin-stratcom',
+      'javelin-install',
+      'javelin-request',
+      'javelin-workflow',
+    ),
+    '65ef6074' => array(
+      'javelin-behavior',
+      'javelin-stratcom',
+      'javelin-dom',
+      'javelin-util',
+      'javelin-vector',
+      'differential-inline-comment-editor',
+    ),
     '665cf6ac' => array(
       'javelin-behavior',
       'javelin-util',
@@ -1817,14 +1825,6 @@ return array(
       'javelin-dom',
       'javelin-view',
     ),
-    'd4c87bf4' => array(
-      'javelin-dom',
-      'javelin-util',
-      'javelin-stratcom',
-      'javelin-install',
-      'javelin-request',
-      'javelin-workflow',
-    ),
     'd4eecc63' => array(
       'javelin-behavior',
       'javelin-dom',

src/infrastructure/diff/PhabricatorInlineCommentController.php

@@ -94,6 +94,19 @@ abstract class PhabricatorInlineCommentController
 
     $op = $this->getOperation();
     switch ($op) {
+      case 'busy':
+        if ($request->isFormPost()) {
+          return new AphrontAjaxResponse();
+        }
+
+        return $this->newDialog()
+          ->setTitle(pht('Already Editing'))
+          ->appendParagraph(
+            pht(
+              'You are already editing an inline comment. Finish editing '.
+              'your current comment before adding new comments.'))
+          ->addCancelButton('/')
+          ->addSubmitButton(pht('Jump to Inline'));
       case 'hide':
       case 'show':
         if (!$request->validateCSRF()) {

webroot/rsrc/js/application/differential/DifferentialInlineCommentEditor.js

@@ -250,12 +250,30 @@ JX.install('DifferentialInlineCommentEditor', {
       JX.DifferentialInlineCommentEditor._undoRows = rows;
     },
 
-    start : function() {
-      this._registerUndoListener();
+    _onBusyWorkflow: function() {
+      // If the user clicks the "Jump to Inline" button, scroll to the row
+      // being edited.
+      JX.DOM.scrollTo(this.getRow());
+    },
 
-      var data = this._buildRequestData();
+    start : function() {
       var op = this.getOperation();
 
+      // The user is already editing a comment, we're going to give them an
+      // error message.
+      if (op == 'busy') {
+        var onbusy = JX.bind(this, this._onBusyWorkflow);
+
+        new JX.Workflow(this._uri, {op: op})
+          .setHandler(onbusy)
+          .start();
+
+        return this;
+      }
+
+      this._registerUndoListener();
+      var data = this._buildRequestData();
+
       if (op == 'delete' || op == 'refdelete' || op == 'undelete') {
         this._setRowState('loading');
 

webroot/rsrc/js/application/differential/behavior-edit-inline-comments.js

@@ -138,13 +138,23 @@ JX.behavior('differential-edit-inline-comments', function(config) {
     'mousedown',
     ['differential-changeset', 'tag:th'],
     function(e) {
-      if (editor  ||
-          selecting ||
-          e.isRightButton() ||
+      if (e.isRightButton() ||
           getRowNumber(e.getTarget()) === undefined) {
         return;
       }
 
+      if (editor) {
+        new JX.DifferentialInlineCommentEditor(config.uri)
+          .setOperation('busy')
+          .setRow(editor.getRow().previousSibling)
+          .start();
+        return;
+      }
+
+      if (selecting) {
+        return;
+      }
+
       selecting = true;
       root = e.getNode('differential-changeset');