[Pythonmac-SIG] open program via a protocol (eg. myapp:command)

[has]

On 10 Jul 2009, at 14:45, Brendan Simon (eTRIX) wrote:

> has wrote:
>> Brendan Simon (eTRIX) wrote:
>>
>>> I have an OS X python program that is invoked via a uri on a  
>>> webpage --
>>> eg. "myapp:command"
>>> [...]
>> You need to install an Apple event handler that responds to the  
>> GetURL
>> event. Various ways you can do that, depending on whether your Python
>> application is Carbon or Cocoa based, has an event loop or runs in  
>> batch
>> mode, uses argvemulation, etc. For more specific advice, provide more
>> details.
>
> I'm using wxPython.
>
> I think setting argvemulation to True may be the key.

The argvemulation option uses Python 2.x's plat-mac/argvemulation.py  
module to handle incoming 'open document' Apple events, unpack their  
direct argument as a list of file paths, and add those paths to  
sys.argv. It doesn't recognise GetURL events, however.

I've no idea if there's anything you need to watch for when Apple  
events in a wxPython-based application, so you might need to do a bit  
of research on that front. The basic code for handling a GetURL event  
should go something like this:

from Carbon import AE
from Carbon.AppleEvents import *


def geturl(requestevent, replyevent): # event handler
	desc = requestevent.AEGetParamDesc(keyDirectObject, typeUTF8Text)
	url = desc.data.decode('utf8')
	# do stuff with URL here...

AE.AEInstallEventHandler(kAEInternetSuite, kAEISGetURL, geturl)

Studying the argvemulation.py module's implementation may also be  
informative.

HTH

has
-- 
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