Ensure focus returns to the editor when file finder closes.

We just capture focusout events on root view… if anything other than the editors text area lost focus, we focus the editor again. This will likely need refinement when we add more widgets to the system, but its enough to make the fuzzy finder behave appropriately.

src/atom/editor.coffee

@@ -37,7 +37,7 @@ class Editor extends Template
       @aceEditor.setTheme(require "ace/theme/twilight")
       @aceEditor.setKeyboardHandler
         handleKeyboard: (data, hashId, keyString, keyCode, event) =>
-          if event and @keyEventHandler?.handleKeyEvent(event)
+          if event and @keyEventHandler and @keyEventHandler.handleKeyEvent(event) == false
             { command: { exec: -> }}
           else
             null
@@ -45,6 +45,9 @@ class Editor extends Template
     getAceSession: ->
       @aceEditor.getSession()
 
+    focus: ->
+      @aceEditor.focus()
+
     save: ->
       if @buffer.url
         @buffer.save()

src/atom/root-view.coffee

@@ -32,6 +32,9 @@ class RootView extends Template
 
       @on 'toggle-file-finder', => @toggleFileFinder()
 
+      @on 'focusout', (e) =>
+        @editor.focus() unless e.target is @editor.find('textarea')[0]
+
     createProject: (url) ->
       if url
         @project = new Project(fs.directory(url))