Re: Autoscrolling in NSDraggingDestination
Re: Autoscrolling in NSDraggingDestination
- Subject: Re: Autoscrolling in NSDraggingDestination
- From: Graham Cox <email@hidden>
- Date: Wed, 06 Feb 2013 13:53:22 +1100
On 06/02/2013, at 12:31 PM, Kyle Sluder <email@hidden> wrote:
> On Tue, Feb 5, 2013, at 03:39 PM, Graham Cox wrote:
>> I need to autoscroll my view when I'm handling -draggingUpdated: but
>> -autoscroll: takes an NSEvent and I don't have one. I thought I could use
>> [myWindow currentEvent] but that doesn't seem correct for the dragging
>> session.
>
> Why not? If you want to be safe, you can ask the current event if it is
> a mouse event.
>
> (Ideally, the method would be -draggingUpdated:forEvent:…)
>
> --Kyle Sluder
Actually, the problem isn't what I thought it was.
It seemed as if the current event wasn't being updated during the dragging session, but it turns out the problem is that -draggingUpdated: is only called while the drag is within my view - in which case there is nothing to autoscroll. If I drag beyond the edge of the view, -draggingUpdated: is no longer called, so I still can't autoscroll....
So, the question is how can I tap into the dragging session loop to do the autoscroll?
--Graham
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