Hook TextEditorRegistry to editors created by splitting panes

src/text-editor-registry.js

@@ -124,6 +124,10 @@ export default class TextEditorRegistry {
   }
 
   maintainGrammar (editor) {
+    if (this.editorsWithMaintainedGrammar.has(editor)) {
+      return
+    }
+
     this.editorsWithMaintainedGrammar.add(editor)
     this.selectGrammarForEditor(editor)
     this.subscriptions.add(editor.onDidChangePath(() => {
@@ -148,6 +152,10 @@ export default class TextEditorRegistry {
   }
 
   maintainConfig (editor) {
+    if (this.editorsWithMaintainedConfig.has(editor)) {
+      return
+    }
+
     this.editorsWithMaintainedConfig.add(editor)
     this.subscribeToSettingsForEditorScope(editor)
     editor.setScopedSettingsDelegate(this.scopedSettingsDelegate)

src/workspace.coffee

@@ -84,10 +84,12 @@ class Workspace extends Model
     @openers = []
     @destroyedItemURIs = []
     @consumeServices(@packageManager)
+    @subscribeToAddedItems()
 
   subscribeToEvents: ->
     @subscribeToActiveItem()
     @subscribeToFontSize()
+    @subscribeToAddedItems()
 
   consumeServices: ({serviceHub}) ->
     @directorySearchers = []
@@ -160,6 +162,13 @@ class Workspace extends Model
       @activeItemSubscriptions.add(titleSubscription) if titleSubscription?
       @activeItemSubscriptions.add(modifiedSubscription) if modifiedSubscription?
 
+  subscribeToAddedItems: ->
+    @onDidAddPaneItem ({item, pane, index}) =>
+      if item instanceof TextEditor
+        # @textEditorRegistry.maintainConfig(item)
+        # @textEditorRegistry.maintainGrammar(item)
+        @emitter.emit 'did-add-text-editor', {textEditor: item, pane, index}
+
   # Updates the application's title and proxy icon based on whichever file is
   # open.
   updateWindowTitle: =>
@@ -383,8 +392,7 @@ class Workspace extends Model
   #
   # Returns a {Disposable} on which `.dispose()` can be called to unsubscribe.
   onDidAddTextEditor: (callback) ->
-    @onDidAddPaneItem ({item, pane, index}) ->
-      callback({textEditor: item, pane, index}) if item instanceof TextEditor
+    @emitter.on 'did-add-text-editor', callback
 
   ###
   Section: Opening