On 1/18/13 4:15 PM, "Mariano Martinez Peck" <marianopeck at gmail.com> wrote:

> Hello there,
> 
> For a long time, Pharaoers and Squakers have been asking for headless support
> in the Cocoa VMs just as we have with Carbon VMs. Carbon is becoming a legacy
> framework so people needed this. 
> 
> I wanted to thanks Square [i] International <http://www.square-i.net/>  for
> sponsoring me to implement such a support. Not only have they sponsored the
> development but they have also agreed to release it under MIT license for the
> community. This headless support will be included in the official Pharo VM and
> will be, therefore, accessible to everybody.
> 
> The project is not yet finished but I do have a demo/prototype that I wanted
> to share with you so that you can test it and give me feedback. This VM should
> only work starting at OSX 10.6.
> 
> How to use it?  Basically it works this way: to have headless, just edit the
> Info.plist and set the flag LSBackgroundOnly to 1 (add the key if it is not
> present):
> 
>  <key>LSBackgroundOnly</key>
>  <true/>
> 
> When doing this, you don't even need the -headless anymore since, setting
> LSBackgroundOnly to 1, will cause the same effect (being the flag almost
> mandatory). If you don't want headless, put it to false or don't even put the
> key. If you don't set LSBackgroundOnly to 1 but send -headless, the VM will
> still be headless but you will see a little flash. If this flash bothers you,
> then set the flag. I am trying to get a way to avoid the "flash" while also
> avoiding to set LSBackgroundOnly to 1, but I still couldn't find it. Anyway, I
> think we can live with the current situation. 
>  
> How to test it? You should run the image with something like RFB or Seaside or
> whatever you can and then confirm if it is working even if you are headless.
> As a matter of testing, I saved an image with seaside running in the port
> 5555. You can get both, this Seaside image and the VM with headless
> from: https://www.dropbox.com/sh/r7qk49bxywk2xce/6N7-fdyx6V
> So if you run the VM headless with that image and go to localhost:5555, you
> should see that Seaside is running. 
>   
> I would appreciate if you can test it. And please let me know in which version
> of OSX you tried. Of course, the more of you who can test it, the better.
> Notice that this VM was compiled with LLVM GCC 4.2 and it may have some
> problems in older OSX versions (but I think it shouldn't). I still couldn't
> compile a VM with GNU GCC 4.2 as I get a crash :(
>  
> Expected results?  In headless mode, anything should be displayed (no window,
> no menu, no item in the dock and nothing appear when switching apps). When
> running headfull, everything should be normal.
> 
> Where is the code? The code I have modified to the VM is committed to my own
> fork of the VM: https://gitorious.org/~marianopeck/cogvm/marianopecks-blessed
> Once the code is ready, I will do a pull request so that it can be
> integrated. 
> 
> Thanks everyone for the testing and feedback. Once again, thanks Square [i]
> International for sponsoring this great feature. Also thanks Esteban Lorenzano
> and Mark Smith for their incredible help.
> 
> This was just the first prototype. I will keep you informed about possible
> progress.   
> 
> Best regards,
> 
> -- 
> Mariano
> http://marianopeck.wordpress.com
> 
> 
> 
> -- 
> Mariano
> http://marianopeck.wordpress.com
> 
> 
> Great news
> Thanks Mariano
> 
> Edgar
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