Move handling of undoGroupingInterval to TextEditorRegistry

spec/text-editor-component-spec.js

@@ -3909,7 +3909,7 @@ describe('TextEditorComponent', function () {
       spyOn(Date, 'now').andCallFake(function () {
         return currentTime
       })
-      atom.config.set('editor.undoGroupingInterval', 100)
+      editor.setUndoGroupingInterval(100)
       editor.setText('')
       componentNode.dispatchEvent(buildTextInputEvent({
         data: 'x',

spec/text-editor-registry-spec.js

@@ -383,5 +383,16 @@ describe('TextEditorRegistry', function () {
       atom.config.set('editor.scrollPastEnd', true)
       expect(editor.getScrollPastEnd()).toBe(true)
     })
+
+    it('sets the undo grouping interval based on the config', function () {
+      expect(editor.getUndoGroupingInterval()).toBe(300)
+
+      atom.config.set('editor.undoGroupingInterval', 600)
+      registry.maintainConfig(editor)
+      expect(editor.getUndoGroupingInterval()).toBe(600)
+
+      atom.config.set('editor.undoGroupingInterval', 300)
+      expect(editor.getUndoGroupingInterval()).toBe(300)
+    })
   })
 })

src/text-editor-registry.js

@@ -17,6 +17,7 @@ const EDITOR_SETTER_NAMES_BY_SETTING_KEY = [
   ['editor.autoIndent', 'setAutoIndent'],
   ['editor.autoIndentOnPaste', 'setAutoIndentOnPaste'],
   ['editor.scrollPastEnd', 'setScrollPastEnd'],
+  ['editor.undoGroupingInterval', 'setUndoGroupingInterval'],
 ]
 
 // Experimental: This global registry tracks registered `TextEditors`.

src/text-editor.coffee

@@ -153,6 +153,7 @@ class TextEditor extends Model
     @backUpBeforeSaving ?= false
     @autoIndent ?= true
     @autoIndentOnPaste ?= true
+    @undoGroupingInterval ?= 300
 
     @buffer ?= new TextBuffer
     @tokenizedBuffer ?= new TokenizedBuffer({
@@ -898,7 +899,7 @@ class TextEditor extends Model
     return false unless @emitWillInsertTextEvent(text)
 
     groupingInterval = if options.groupUndo
-      @config.get('editor.undoGroupingInterval')
+      @undoGroupingInterval
     else
       0
 
@@ -3339,6 +3340,10 @@ class TextEditor extends Model
 
   getScrollPastEnd: -> @scrollPastEnd
 
+  setUndoGroupingInterval: (@undoGroupingInterval) ->
+
+  getUndoGroupingInterval: -> @undoGroupingInterval
+
   ###
   Section: Event Handlers
   ###