Re: NSWindow displaying asynchronously starting in 10.11
Re: NSWindow displaying asynchronously starting in 10.11
- Subject: Re: NSWindow displaying asynchronously starting in 10.11
- From: Jerry Krinock <email@hidden>
- Date: Mon, 30 Nov 2015 21:53:58 -0800
> On 2015 Nov 30, at 14:35, Quincey Morris <email@hidden> wrote:
>
> I’m not aware that the APIs you mention in 1 and 2 have any known contract about when they have their effect. It could be synchronous or asynchronous, and it could be now or later.
You are correct. But after 20 years, seems like a little comment in the Release Notes would have been warranted.
> 1. Sending ‘display’ is likely a code smell anyway.
Yes,. I discovered the problem while throwing together a quick demo last week, not in a shipping product :)
> 2. It’s always been true that the panel is still displayed during its completion handler.
True. Now, though, we get a white rectangle.
> The correct approach has always been to retrieve the result URL(s) you want, then orderOut: the panel before doing something else in the completion handler
I just tried adding an -orderOut before the 5-second sleep in my demo. Still get a white rectangle for 5 seconds. Weird that the white rectangle is larger than the panel. I think maybe it includes the entire tail of the shadow.
> I’m not sure that 3 has anything to do with windows or synchronicity. I think it’s more about changes in the way CALayers behave**. When I restart my elderly iMac 27”, I frequently see black Finder windows during the time that iTunes starting up seems to put a stranglehold on the system.
Yes, I’ll buy that. White Rectangles = something. Black Rectangles = something else.
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| References: | |
| | >NSWindow (From: Jerry Krinock <email@hidden>) |
| | >Re: NSWindow (From: Quincey Morris <email@hidden>) |