Re: [Rubycocoa-talk] Intermittent dump - problems in mouseDown()/NSNotificationCenter postNotificationName:object:userInfo:]

[Brian M. <ma...@ex...>]

On Aug 27, 2008, at 12:04 AM, Allison Newman wrote:
> In my (admittedly limited) experience with RubyCocoa, the bug most  
> likely to make the internals of Cocoa blow up is when you hand Cocoa  
> a Ruby Object that has been generated by a factory class.  My  
> personal favourite of these is objects generated by YAML, but I'm  
> sure there are others.
>
> Is your problem always associated with NSNotificationCenter?  How  
> are you generating the observer objects?  Can you post that code?


The interesting thing here is that I'm not causing the notification to  
be sent. It's happening on a mouse-down. None of my code observes  
those notifications. Here's the code that manages the combo boxes.  
It's in a controller (loaded from main nib). It talks to a class that  
loads-and-decodes user preferences. (Not using  
NSUserDefaultsController yet.)

     def awakeFromNib
       @comboBox.usesDataSource = true
       @comboBox.dataSource = self
       @comboBox.stringValue =  
@preferences.display_name_of_favorite_translator
       super
     end

     # In role as data source

     def numberOfItemsInComboBox(ignored)
       @preferences.translator_display_names.size
     end

     def comboBox_objectValueForItemAtIndex(ignored, index)
       @preferences.translator_display_names[index]
     end

     def comboBox_indexOfItemWithStringValue(ignored, string)
       @preferences.translator_display_names.index(string) || NSNotFound
     end

-----
Brian Marick, independent consultant
Mostly on agile methods with a testing slant
www.exampler.com, www.exampler.com/blog, www.twitter.com/marick