I have a situation where I need my document's contents on disk, even if it's a new document with no changes, so I thought I would just make sure that the document had autosaved before I complete my action on the file, and just pick up the URL of the last autosave from the document and use that. (I'm running this on Lion)
I use: - (void)autosaveWithImplicitCancellability:(BOOL)autosavingIsImplicitlyCancellable completionHandler:(void (^)(NSError *errorOrNil))completionHandler Now this is fine, except that it only works if the user has made at least one change to the document. The documentation says that it invokes the - (BOOL)hasUnautosavedChanges method to determine whether to save the document. So I overrode that method so that during my operation, it will return YES. I expected this to ensure that the document would be saved, but it ignores this and doesn't autosave it. It does actually call this method during the autosave call, but seems to not take notice that I returned YES. So I tried putting a dummy undo action in just before calling autosave, and then undoing it afterwards, just to ensure that the document was dirty. That didn't work either. I put it in an undo group, but that didn't work either. I forced a checkpoint in the undo manager, but that didn't work either. So I thought I would try the document updateChangeCount: method, calling NSChangeDone before calling autosave, then NSChangeUndone afterwards. That worked! I removed all the other stuff and *only* had the updateChangeCount: calls in there, and it still autosaved. So I have a solution that works, but I'm thinking that my override of hasUnautosavedChanges should have forced the autosave. Is this a bug that it doesn't? TIA Gideon _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
