add onBlur and onFocus events for the window

This allows us to simulate those events and test for them easier

spec/app/window-spec.coffee

@@ -15,10 +15,11 @@ describe "Window", ->
 
   describe "window is loaded", ->
     it "doesn't have .is-blurred on the body tag", ->
+      $(window).trigger 'window:focus'
       expect($("body").hasClass("is-blurred")).toBe false
 
     it "does have .is-blurred on the window blur event", ->
-      $(window).blur()
+      $(window).trigger 'window:blur'
       expect($("body").hasClass("is-blurred")).toBe true
 
   describe ".close()", ->

src/app/window.coffee

@@ -28,8 +28,12 @@ windowAdditions =
 
     $(window).on 'core:close', => @close()
     $(window).command 'window:close', => @close()
-    $(window).on 'focus', -> $("body").removeClass('is-blurred')
-    $(window).on 'blur',  -> $("body").addClass('is-blurred')
+
+    $(window).on 'window:focus', onFocus
+    $(window).on 'window:blur', onBlur
+
+    $(window).on 'focus', -> $(@).trigger 'window:focus'
+    $(window).on 'blur',  -> $(@).trigger 'window:blur'
 
   # This method is intended only to be run when starting a normal application
   # Note: RootView assigns itself on window on initialization so that
@@ -102,6 +106,13 @@ windowAdditions =
   onerror: ->
     atom.showDevTools()
 
+  onFocus: (event) =>
+    console.log 'focused'
+    $('body').removeClass 'is-blurred'
+
+  onBlur: (event) =>
+    $('body').addClass 'is-blurred'
+
   measure: (description, fn) ->
     start = new Date().getTime()
     value = fn()