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92 lines
3 KiB
Python
92 lines
3 KiB
Python
"""argvemulator - create sys.argv from OSA events. Used by applets that
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want unix-style arguments.
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"""
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from warnings import warnpy3k
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warnpy3k("In 3.x, the argvemulator module is removed.")
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import sys
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import traceback
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from Carbon import AE
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from Carbon.AppleEvents import *
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from Carbon import Evt
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from Carbon import File
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from Carbon.Events import *
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import aetools
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class ArgvCollector:
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"""A minimal FrameWork.Application-like class"""
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def __init__(self):
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self.quitting = 0
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# Remove the funny -psn_xxx_xxx argument
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if len(sys.argv) > 1 and sys.argv[1][:4] == '-psn':
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del sys.argv[1]
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AE.AEInstallEventHandler(kCoreEventClass, kAEOpenApplication, self.__runapp)
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AE.AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments, self.__openfiles)
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def close(self):
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AE.AERemoveEventHandler(kCoreEventClass, kAEOpenApplication)
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AE.AERemoveEventHandler(kCoreEventClass, kAEOpenDocuments)
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def mainloop(self, mask = highLevelEventMask, timeout = 1*60):
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# Note: this is not the right way to run an event loop in OSX or even
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# "recent" versions of MacOS9. This is however code that has proven
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# itself.
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stoptime = Evt.TickCount() + timeout
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while not self.quitting and Evt.TickCount() < stoptime:
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self._dooneevent(mask, timeout)
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if not self.quitting:
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print "argvemulator: timeout waiting for arguments"
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self.close()
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def _dooneevent(self, mask = highLevelEventMask, timeout = 1*60):
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got, event = Evt.WaitNextEvent(mask, timeout)
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if got:
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self._lowlevelhandler(event)
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def _lowlevelhandler(self, event):
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what, message, when, where, modifiers = event
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h, v = where
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if what == kHighLevelEvent:
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try:
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AE.AEProcessAppleEvent(event)
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except AE.Error, err:
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msg = "High Level Event: %r %r" % (hex(message), hex(h | (v<<16)))
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print 'AE error: ', err
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print 'in', msg
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traceback.print_exc()
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return
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else:
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print "Unhandled event:", event
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def _quit(self):
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self.quitting = 1
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def __runapp(self, requestevent, replyevent):
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self._quit()
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def __openfiles(self, requestevent, replyevent):
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try:
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listdesc = requestevent.AEGetParamDesc(keyDirectObject, typeAEList)
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for i in range(listdesc.AECountItems()):
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aliasdesc = listdesc.AEGetNthDesc(i+1, typeAlias)[1]
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alias = File.Alias(rawdata=aliasdesc.data)
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fsref = alias.FSResolveAlias(None)[0]
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pathname = fsref.as_pathname()
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sys.argv.append(pathname)
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except Exception, e:
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print "argvemulator.py warning: can't unpack an open document event"
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import traceback
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traceback.print_exc()
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self._quit()
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if __name__ == '__main__':
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ArgvCollector().mainloop()
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print "sys.argv=", sys.argv
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