Re: how to get what tells fileURL has been changed by others

FROM : Jens Alfke
DATE : Sun Apr 20 18:15:21 2008

On 20 Apr '08, at 5:32 AM, のりちん wrote:

> I'd like to know who tells NSDocument that its location has been
> changed by other apps and how to get the notification.


I think that internally each NSDocument instance keeps an AliasHandle 
pointing to the document file, and before saving resolves the alias 
back to a path to compare with the current path.

> I'd like to hack before you notice something like "the document's
> location was changed, so do you want to save any other location?" when
> you open the file by an app and move the file to the other directory
> in Finder while editing the file.


I assume you've looked through the whole public API of NSDocument; if 
there's nothing relevant there, it may not be possible to override 
this without relying on private APIs.

—Jens