CODEWITHSUNDEEP
macoscocoansdocument
Scotty
Scotty

Reputation: 2069

Detect overwritten file using NSDocument

I have an OSX app which uses NSDocument and autosaves inplace - all works well. Sometimes the user will save the document into a Dropbox synced folder and there is then the chance that the document will be updated (via Dropbox) whilst its still open in the app. Question is, how do I detect this and reload the document from disk (or at least inform the user.)

Thanks

Upvotes: 4

Views: 541

Answers (1)

David Beck
David Beck

Reputation: 10159

NSDocument implements the NSFilePresenter protocol out of the box. You can override presentedItemDidChange to update automatically when the file has changed.

Upvotes: 8

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