Fixing issue #109 - iOS 6 doesn't call screen shouldAutorotate when in navigation bar. Added tests too.

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    ProMotion (0.7.0)
+    ProMotion (0.7.1)
 
 GEM
   remote: https://rubygems.org/

lib/ProMotion/cocoatouch/NavigationController.rb

@@ -1,4 +1,7 @@
 module ProMotion
   class NavigationController < UINavigationController
+    def shouldAutorotate
+      visibleViewController.shouldAutorotate
+    end
   end
-end
+end

spec/unit/screen_spec.rb

@@ -43,6 +43,19 @@ describe "screen properties" do
     @screen.should_autorotate.should == true
   end
 
+  # Issue https://github.com/clearsightstudio/ProMotion/issues/109
+  it "#should_autorotate should fire when shouldAutorotate fires when in a navigation bar" do
+    parent_screen = BasicScreen.new(nav_bar: true)
+    parent_screen.open @screen
+    @screen.mock!(:should_autorotate) { true.should == true }
+    parent_screen.navigationController.shouldAutorotate
+  end
+
+  # <= iOS 5 only
+  it "#should_rotate(orientation) should fire when shouldAutorotateToInterfaceOrientation(orientation) fires" do
+    @screen.mock!(:should_rotate) { |orientation| orientation.should == UIInterfaceOrientationMaskPortrait }
+    @screen.shouldAutorotateToInterfaceOrientation(UIInterfaceOrientationMaskPortrait)
+  end
 
   describe "iOS lifecycle methods" do