Hey,
I'm trying to display an NSOpenPanel on a dispatch, with half-luck. The panel
displays, but no files going to be displayed - the circle just spinning on the
bottom-left corner. Anyone have an idea what going wrong?
Thanks,
Tamas
dispatch_async(dispatch_get_main_queue(), ^{
On 16 Dec 2012, at 10:45, Tamas Nagy wrote:
> Hey,
>
> I'm trying to display an NSOpenPanel on a dispatch, with half-luck. The panel
> displays, but no files going to be displayed - the circle just spinning on
> the bottom-left corner. Anyone have an idea what going wrong?
>
> Thanks,
>
> T
Thanks for the suggestions Tom. I know about that things, but the original code
was a bit bigger, where I need a mutable array and other stuff, and just
trimmed out for the example.
But to back to on-topic: the code works fine on 10.6.8, the issue happens only
on 10.7.5 and 10.8.2. If I call th
On 15.12.2012, at 01:44, Uli Kusterer wrote:
>
> On 15.12.2012, at 01:38, Uli Kusterer wrote:
>
>> On 12.12.2012, at 10:03, Andreas Grosam wrote:
>>> How can I check at runtime whether an object (id) is actually a block, and
>>> not another kind of object?
>>
>> Not a good idea. What are yo
On 16 Dec 2012, at 10:45, Tamas Nagy wrote:
> Hey,
>
> I'm trying to display an NSOpenPanel on a dispatch, with half-luck. The panel
> displays, but no files going to be displayed - the circle just spinning on
> the bottom-left corner. Anyone have an idea what going wrong?
>
> Thanks,
>
> Ta
Unfortunately that doesn't help.
I think the issue should be related to dispatches, because it won't happen if I
just call performSelectorOnMainThread...
On Dec 16, 2012, at 6:05 PM, Mike Abdullah wrote:
>
> On 16 Dec 2012, at 10:45, Tamas Nagy wrote:
>
>> Hey,
>>
>> I'm trying to display
On Dec 16, 2012, at 2:45 AM, Tamas Nagy wrote:
>
>dispatch_async(dispatch_get_main_queue(), ^{
>
>NSOpenPanel *oPanel = [NSOpenPanel openPanel];
*Bzzt!* Thou shalt not do UI work on a background thread. You cannot use
dispatch_async here.
--Kyle Sluder
___
On 16 Dec 2012, at 18:32, Kyle Sluder wrote:
> On Dec 16, 2012, at 2:45 AM, Tamas Nagy wrote:
>
>>
>> dispatch_async(dispatch_get_main_queue(), ^{
>>
>> NSOpenPanel *oPanel = [NSOpenPanel openPanel];
>
> *Bzzt!* Thou shalt not do UI work on a background thread. You cannot use
> disp
On 16 Dec 2012, at 17:20, Tamas Nagy wrote:
> Unfortunately that doesn't help.
>
> I think the issue should be related to dispatches, because it won't happen if
> I just call performSelectorOnMainThread...
Can you post that variant of your code then, please?
On Dec 16, 2012, at 10:39 AM, Mike Abdullah wrote:
>
> On 16 Dec 2012, at 18:32, Kyle Sluder wrote:
>
>> On Dec 16, 2012, at 2:45 AM, Tamas Nagy wrote:
>>
>>>
>>> dispatch_async(dispatch_get_main_queue(), ^{
>>>
>>> NSOpenPanel *oPanel = [NSOpenPanel openPanel];
>>
>> *Bzzt!* Thou s
On Sun, Dec 16, 2012, at 10:40 AM, Mike Abdullah wrote:
>
> On 16 Dec 2012, at 17:20, Tamas Nagy wrote:
>
> > Unfortunately that doesn't help.
> >
> > I think the issue should be related to dispatches, because it won't happen
> > if I just call performSelectorOnMainThread...
>
> Can you post
On Sun, Dec 16, 2012, at 11:28 AM, Kyle Sluder wrote:
> My guess is that NSOpenPanel is doing some work on a background thread,
> and that work is trying to use the main queue to inform the open panel
> of its completion. By using the dispatch_async approach, the main queue
> is blocked, and the ba
Thanks for the approach Kyle, but dispatch_async performs asynchronously, so it
should not block the main thread. I fallback to performSelectorOnMainThread:
method in my app, but the dispatch way is a bit straightforward in my opinion.
I'll fill a rdar on this.
On Dec 16, 2012, at 8:39 PM,
Performing asynchronously and blocking the main *queue* are not related things.
The main queue is a serial queue, it only executes one block at a time. At the
moment, it's executing your block, stuck in your runModal call. That runModal
call will not come off the stack, and the block finish ex
Ahh, okay, thanks for the explanation Tom, now I got it.
On Dec 16, 2012, at 9:21 PM, Tom Davie wrote:
> Performing asynchronously and blocking the main *queue* are not related
> things.
>
> The main queue is a serial queue, it only executes one block at a time. At
> the moment, it's executi
On Sun, Dec 16, 2012, at 12:04 PM, Tamas Nagy wrote:
> Thanks for the approach Kyle, but dispatch_async performs asynchronously,
> so it should not block the main thread. I fallback to
> performSelectorOnMainThread: method in my app, but the dispatch way is a
> bit straightforward in my opinion. I'
On Sun, Dec 16, 2012, at 12:04 PM, Tamas Nagy wrote:
> Thanks for the approach Kyle, but dispatch_async performs asynchronously,
> so it should not block the main thread. I fallback to
> performSelectorOnMainThread: method in my app, but the dispatch way is a
> bit straightforward in my opinion. I'
On 16 Dec 2012, at 20:04, Tamas Nagy wrote:
> Thanks for the approach Kyle, but dispatch_async performs asynchronously, so
> it should not block the main thread. I fallback to
> performSelectorOnMainThread: method in my app, but the dispatch way is a bit
> straightforward in my opinion. I'll f
On Dec 16, 2012, at 9:05 AM, Mike Abdullah wrote:
>
> On 16 Dec 2012, at 10:45, Tamas Nagy wrote:
>
>> Hey,
>>
>> I'm trying to display an NSOpenPanel on a dispatch, with half-luck. The
>> panel displays, but no files going to be displayed - the circle just
>> spinning on the bottom-left cor
Thanks Kyle. I know about beginWithCompletionHandler: , but I really need a
modal window at that point my application opens the open panel.
On Dec 16, 2012, at 9:39 PM, Kyle Sluder wrote:
> On Sun, Dec 16, 2012, at 12:04 PM, Tamas Nagy wrote:
>> Thanks for the approach Kyle, but dispatch_asyn
On Sun, Dec 16, 2012, at 09:43 PM, Tamas Nagy wrote:
> Thanks Kyle. I know about beginWithCompletionHandler: , but I really need
> a modal window at that point my application opens the open panel.
I have to ask, why?
If you want to block interaction with a document, you can use
-beginSheetModalFo
It's a live video app, where rendering happening on a CVDisplayLink thread, so
the app still running and do its job while an OpenPanel (or SavePanel)
displaying. I just need to block the UI to make sure the users can't interact
the app while an open panel displaying.
On Dec 17, 2012, at 6:46 A
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