From a743cdc5c6962c4d13456890bf8b338efe6604b1 Mon Sep 17 00:00:00 2001
From: Mo Bitar <me@bitar.io>
Date: Thu, 3 May 2018 18:22:13 -0500
Subject: [PATCH] Fixes issue where deleting one editor may clear the current
 editor session

---
 .../javascripts/app/controllers/editor.js       | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/app/assets/javascripts/app/controllers/editor.js b/app/assets/javascripts/app/controllers/editor.js
index 668460c3b..488d4f3d8 100644
--- a/app/assets/javascripts/app/controllers/editor.js
+++ b/app/assets/javascripts/app/controllers/editor.js
@@ -443,12 +443,21 @@ angular.module('app')
         // Autocomplete Tags
         this.tagsComponent = component.active ? component : null;
       } else if(component.area == "editor-editor") {
-        // Editor
-        if(component.active && this.note && (component.isExplicitlyEnabledForItem(this.note) || component.isDefaultEditor())) {
-          this.selectedEditor = component;
+        // An editor is already active, ensure the potential replacement is explicitely enabled for this item
+        if(this.selectedEditor) {
+          if(component.isExplicitlyEnabledForItem(this.note)) {
+            this.selectedEditor = component;
+          }
         } else {
-          this.selectedEditor = null;
+          // If no selected editor, let's see if the incoming one is a candidate
+          if(component.active && this.note && (component.isExplicitlyEnabledForItem(this.note) || component.isDefaultEditor())) {
+            this.selectedEditor = component;
+          } else {
+            // Not a candidate, and no selected editor. Disable the current editor by setting selectedEditor to null
+            this.selectedEditor = null;
+          }
         }
+
       } else if(component.area == "editor-stack") {
         this.reloadComponentContext();
       }