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Changes to NSGlobalDomain aren't detected

From: David Chisnall
Subject: Changes to NSGlobalDomain aren't detected
Date: Tue, 1 Oct 2013 10:41:26 +0100


I've noticed that when I set the GSTheme default for a running application, it 
recents an NSUserDefaultsChanged notification, but when I change NSGlobalDomain 
GSTheme this doesn't happen.  This is problematic, because it means that you 
can't easily change the theme of all of the running GNUstep apps without 
restarting them.

Looking more closely, it seems that NSUserDefaults periodically checks if 
defaults have been changed, but doesn't check for NSGlobalDomain.  I'm not 
fully able to follow the code that determines whether a domain needs to be 
reloaded, but perhaps someone who understands it could take a look?

Alternatively, I wonder if having changes to persistent domains post a 
distributed notification would be cleaner than regularly polling the FS 
(regularly waking up sucks battery life on mobile devices, even if the check is 
handled by the VFS layer).  If people want to manually modify the plists of a 
running application (and not use the defaults tool) then they should post the 
notification themselves...


-- Sent from my STANTEC-ZEBRA

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