Correctly handle focus when shadow DOM is disabled

Signed-off-by: Max Brunsfeld <maxbrunsfeld@gmail.com>

src/text-editor-component.coffee

@@ -93,7 +93,7 @@ TextEditorComponent = React.createClass
     className += ' is-focused' if focused
     className += ' has-selection' if hasSelection
 
-    div {className, style, tabIndex: -1},
+    div {className, style},
       if @shouldRenderGutter()
         GutterComponent {
           ref: 'gutter', onMouseDown: @onGutterMouseDown, lineDecorations,

src/text-editor-element.coffee

@@ -110,6 +110,11 @@ class TextEditorElement extends HTMLElement
       @focusOnAttach = true
 
   blurred: (event) ->
+    unless atom.config.get('editor.useShadowDOM')
+      if event.relatedTarget is @component?.refs.input.getDOMNode()
+        event.stopImmediatePropagation()
+        return
+
     @component?.blurred()
 
   addGrammarScopeAttribute: ->

src/text-editor-view.coffee

@@ -127,7 +127,7 @@ class TextEditorView extends View
   Object.defineProperty @::, 'firstRenderedScreenRow', get: -> @component.getRenderedRowRange()[0]
   Object.defineProperty @::, 'lastRenderedScreenRow', get: -> @component.getRenderedRowRange()[1]
   Object.defineProperty @::, 'active', get: -> @is(@getPaneView()?.activeView)
-  Object.defineProperty @::, 'isFocused', get: -> @element is document.activeElement
+  Object.defineProperty @::, 'isFocused', get: -> document.activeElement is @element or document.activeElement is @element.component?.refs.input.getDOMNode()
   Object.defineProperty @::, 'mini', get: -> @component?.props.mini
   Object.defineProperty @::, 'component', get: -> @element?.component