Saving doc loses NSTextView position/selection Re: Lion autosave...
Saving doc loses NSTextView position/selection Re: Lion autosave...
- Subject: Saving doc loses NSTextView position/selection Re: Lion autosave...
- From: Fritz Anderson <email@hidden>
- Date: Tue, 15 Nov 2011 10:46:45 -0600
On 11 Nov 2011, at 11:23 AM, Fritz Anderson wrote:
> On 11 Nov 2011, at 11:00 AM, Fritz Anderson wrote:
>
>> My application writes an XML document that includes styled text in the form of HTML. At the user end is an NSTextView; I use an in-memory Core Data store for working storage. The text view is bound to the backing NSManagedObject through an NSArrayController. I have an NSValueTransformer subclass between the text view and the array controller to translate between the attributed string and NSData containing the HTML.
> ...
>> Snatching the user's work from under his hands is a horrible experience. How can I fix this?
>
> I hate it when people rapid-fire updates to their questions, but…
>
> Removing the value transformer from the NSArray controller process between the text view and the model object doesn't help.
>
> In my model object, I added an NSAttributedString-valued on-demand @property; the getter and setter rely on the transformer to get and set the HTML string** CD attribute. The value still transits through the transformer, but I hoped that hiding it from the controller might help.
>
> It didn't. I still have the bug.
A further update. I turned autosave off; the bug doesn't trigger in the middle of work, but it does trigger on File > Save. Without autosave, the selection, scroll, and first responder status are lost _before_ entry to dataOfType:error:.
Autosave and -commitEditing were red herrings.
I'd like to provide a better experience than this. Can somebody please suggest a lead?
— F
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