I'm having a difficult time figuring out how to implement these features correctly in Lion. I've created a very simple NSDocument based test app: http://pastebin.com/w396Xxi4
A document in this test app has a window and a text field, the user enters text in the text field, that text is the "state" of the document. The app saves and loads that text. I'm saving the data using dataOfType: error: and loading the data using readFromData: ofType: error:. The user interface (the text field in particular) is being updated after being loaded in windowControllerDidLoadNib: unless the data is being reverted, in which instead the user interface is being updated in readFromData: ofType: error: (to test if a document is being reverted, I check if an outlet such as the textField != nil) Now, the saving of the document works fine. Browsing and choosing a different saved version of the document also works fine. What doesn't work correctly is reverting to another version. For example, if I create a new document, save the document, make a change (entering something new in the text field and hitting enter), choose revert to last saved version from the window titlebar, and save again, I occasionally get an error message "This document's file has been changed by another application since you opened or saved it." or I get "The location of the document ----- cannot be determined." (I say occasionally because I cannot get it to error the first attempt I do this while a document is still open, but usually always get an error on my second, and further attempts). I can also reproduce this error when trying to save after choosing a different version in the versions browser, however, I think I can only reproduce the error in this case when my document is in an edited state before trying to choose another version (If I save before trying to choose a different version and then save after, I don't get get an error). Here's a couple images of the errors: http://dl.dropbox.com/u/10108199/error1.png http://dl.dropbox.com/u/10108199/error2.png Also, is there a better approach to loading a reverted document than what I'm doing (instead of testing if an outlet of a document is nil)? Any help would be appreciated. Thanks, -Zorg:-._______________________________________________ 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
