On Mon, Sep 12, 2011 at 11:23 AM, Gus Mueller <g...@flyingmeat.com> wrote:
>
> On Sep 12, 2011, at 11:19 AM, Kyle Sluder wrote:
>
>> On Mon, Sep 12, 2011 at 10:53 AM, Gus Mueller <g...@flyingmeat.com> wrote:
>>> Is there any way to turn off 10.7's autosave in place for a particular 
>>> uti/file type?  Or maybe turn it on for a single file type?
>>
>> Use a different NSDocument subclass for lossy file types?
>
> Oh, right.  Why didn't I think of that?  Sometimes the obvious answers are… 
> not so obvious :)

Probably because it's not the "best" solution. We have the same issue
in our apps, where we read and write to a filetype, but the reading
and/or writing process might be lossy (OPML in OmniOutliner is a prime
example). I believe the expected behavior would be to get an untitled
document with the lossily-imported file contents. I believe you get
this behavior for free if you set the Role to "Viewer" in your UTI
declaration.

--Kyle Sluder
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