Re: Help me fix a bug: endless recursion in NSTextView?
Re: Help me fix a bug: endless recursion in NSTextView?
- Subject: Re: Help me fix a bug: endless recursion in NSTextView?
- From: Oleg Krupnov <email@hidden>
- Date: Fri, 08 Feb 2013 22:35:23 +0200
Here we go:
[textView isVerticallyResizable] == YES
[textView isHorizontallyResizable] == NO
[[textView textContainer] heightTracksTextView] == NO
[[textView textContainer] widthTracksTextView] == YES
Does it mean something?
> I'm not sure. It may have something to do with Retina displays. I would guess that the OS is generating a display configuration change notification when it wakes, which is causing the view to refresh its layout. You may be able to reproduce the problem if you manually change the display configuration on another, otherwise-unaffected system.
Interesting idea! This could explain at least why only MacBooks are
affected. But I tried Retina resolution emulation on my iMac, and the
bug didn't reproduce… Is this the experiment that you mean?
Could there be some other experiments that I can ask the user to
perform on his MacBook when the bug occasionally reproduces again?
Thanks!
On Fri, Feb 8, 2013 at 9:19 PM, Ken Thomases <email@hidden> wrote:
> Hi,
>
> On Feb 8, 2013, at 12:45 PM, Oleg Krupnov wrote:
>
>> Thanks! This information sounds relevant, but I'm still puzzled. All I
>> do is just use a NSTextView on a window. The text view is resizable by
>> width and height, i.e. the text is wrapped when I change the view's
>> width, and scroll bar appears when I change its height. All pretty
>> standard. I do not delve under the hood, do not assemble my own text
>> editor from the components of the text system. I don't use text
>> container directly in my code.
>
> I'm not sure what's going on. You should check the following:
>
> [textView isVerticallyResizable]
> [textView isHorizontallyResizable]
> [[textView textContainer] heightTracksTextView]
> [[textView textContainer] widthTracksTextView]
>
>
>> Besides, even if this was the reason, why does it not manifest in
>> normal use cases, but only in some very rare and obscure
>> circumstances? Namely, when MacBook wakes from sleep mode? There were
>> no reports even from iMacs or MacMinis, only MacBooks. Mostly it
>> happens on 10.8.2, but one report was assumably from 10.7.5.
>
> I'm not sure. It may have something to do with Retina displays. I would guess that the OS is generating a display configuration change notification when it wakes, which is causing the view to refresh its layout. You may be able to reproduce the problem if you manually change the display configuration on another, otherwise-unaffected system.
>
> Regards,
> Ken
>
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