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.
— F
** (I earlier said the CD attribute was NSData; in fact, it's NSString. Sorry.)
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