Question

My Setup

• XCode 4.3.2
• MacRuby 0.12 (ruby 1.9.2) [universal-darwin10.0, x86_64]
  • Latest nightly as of 4 Jun, 2012
• OS 10.7.3

Goal

Have a window with some controls in a separate XIB from MainMenu.xib and be able to open that window programmatically. I do not want it to open at launch.

Attempts

1. I made a new xib (Woot.xib) and created a window in it

2. I made a new Ruby class

   class WootController < NSWindowController
       attr_accessor :window
       def windowNibName
            return 'Woot'
       end
   end
   

3. I tried to set the class of File’s Owner in the Woot.xib to be WootController, but found that it will not if < NSWindowController is in my class definition. If I remove the < NSWindowController from the class definition, then the outlets populate and I can link the window in XIB to the window outlet in my class.

4. From inside my AppDelegate’s applicationDidFinishLaunching method, I’ve tried

   Attempt

   newWind = WootController.new
   puts newWind #outputs "#<AddCredentialsDialog:0x400191180>"
   newWind.window().makeKeyAndOrderFront(self) # results in no method error for nil
   

   Attempt 2

   newWind = WootController.initWithWindowNibName 'AddWindow'
   puts newWind #outputs "#<AddCredentialsDialog:0x400191180>"
   newWind.window().makeKeyAndOrderFront(self) # results in no method error for nil
   

Questions

1. Why don’t either of my attempts work? I’ve ready just about everything I can find on macruby and using NSWindowController.
2. Why can’t I link my class WootController if I have it inheriting from NSWindowController
3. Is there a different way to do this other than putting it all in MainMenu.xib?

Answer 1

This solution works

nib = NSNib.alloc.initWithNibNamed('Woot', bundle: nil)
newWind = WootController.new
nib.instantiateNibWithOwner(newWind, topLevelObjects:nil)
newWind.showWindow(self)

Some things to note

1. In Macruby, if there are named parameters to a method signature, you must use them even if you just specify nil or the method signatures don’t match up and you get a no method error.

   ie. obj.foo('hello', to_whom: nil) is not the same as obj.foo('hello')

2. If there are named parameters you must use parentheses.

   ie. this obj.foo('hello', to_whom: nil) will work, not this obj.foo 'hello', to_whom: nil