Re: [gtk-vnc-devel] Embedding gtk-vnc in a scrolled window inside Mozilla == unhappiness

[Anthony Liguori <anthony codemonkey ws>]

Richard W.M. Jones wrote:
> As a very simple change, I'm trying to put a scrolled window around 
> the Gtk-VNC plugin in Mozilla.  To cut a long story short, if the 
> scrolled window's scrollbar policies are set to AUTOMATIC/AUTOMATIC, I 
> get an absolutely crazy 67,000 line stack trace.  Below are the top 100 

Which suggests an infinite loop of some sort.

> entries.  There's not much "periodicity" in the stack trace that I can 
> determine.  Seems like random Gtk widgets signalling each other over 
> and over in a rather undefined order.

Well, the only thing gtk-vnc does is set_size_request() in the on_resize 
handler.  It also emits a desktop-resize signal here.  You shouldn't be 
able to trigger the on_resize handler though.  Maybe try removing the 
set_size_request() call and see if that prevents the loop?

Just FYI, my experiences with GtkSocket/GtkPlug have not been very 
good.  I originally implemented XEmbed for QEMU before doing a VNC 
server but I gave up on that approach because it was so buggy and fickle.

Regards,

Anthony Liguori

> If the adjustments are set to ALWAYS/ALWAYS then I don't get a stack 
> overflow, but the scrollbars don't appear (well, actually they do 
> appear but they are 1 px thin, so somewhat tricky to use unless the 
> user has very good motor skills).
>
> Of course the same code works fine in a standalone C program, 
> virt-viewer, virt-manager, etc.
>
> If anyone's got any idea, please let me know.  Otherwise I'll just 
> keep chipping away at it ...  Next step is to try a standalone C 
> program using GtkSocket & GtkPlug explicitly.
>
> Rich.
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