CODEWITHSUNDEEP
macoscocoapermissionsappstore-sandbox
Archagon
Archagon

Reputation: 2530

Saving to directory in sandboxed app using NSOpenPanel doesn't work, but drag/drop does

I'm working on a sandboxed OS X app where images get saved into a user-selected directory. There are two ways for the user to pick their output directory: selecting the directory using an NSOpenPanel, and dragging and dropping the directory onto the app.

When I use the drag/drop approach, everything works fine and my files get saved with no issues.

However, if I pick the directory using NSOpenPanel, I get error 513:

Error 513: "You don't have permission to save the file 'x.jpg' in the folder 'y'."

Both the NSOpenPanel and drag/drop code keep their chosen URL in the same place and process it in the same way. What could account for this difference? Does the NSOpenPanel have to be set up in a specific way to grant read/write permission to the directory?

For the record, I've never noticed this problem in the past year of using my app, so it might be a recent change to Cocoa — but I'm not 100% sure about that.

Upvotes: 3

Views: 688

Answers (2)

Nicolas Miari
Nicolas Miari

Reputation: 16246

In my case, I was mistakenly writing my individual files to paths created by concatenating each filename to the URL:

panel.directoryURL

After changing that to:

panel.urls.first

...it worked. Hope this saves some headaches.

Upvotes: 0

Archagon
Archagon

Reputation: 2530

As expected, it looks like I was using NSOpenPanel wrong. 😐

Was storing URL from delegate call in panel(_ sender: AnyObject, validate url: URL). Should have been calling the panel's URL properties from the callback in begin(completionHandler handler: (Int) -> Swift.Void).

Upvotes: 3

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