[Python-checkins] python/dist/src/Lib/plat-mac aetools.py,1.4,1.5

[jackjansen@users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Lib/plat-mac
In directory sc8-pr-cvs1:/tmp/cvs-serv31716

Modified Files:
	aetools.py 
Log Message:
In TalkTo.send(), check that we have access to the window manager,
and initialize the event loop (if not done previously) to work around
a bug (IMHO) in MacOSX 10.2.


Index: aetools.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/plat-mac/aetools.py,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** aetools.py	28 Mar 2003 23:42:37 -0000	1.4
--- aetools.py	31 Mar 2003 13:29:32 -0000	1.5
***************
*** 24,27 ****
--- 24,28 ----
  from types import *
  from Carbon import AE
+ from Carbon import Evt
  from Carbon import AppleEvents
  import MacOS
***************
*** 145,148 ****
--- 146,159 ----
  	_moduleName = None # Can be overridden by subclasses
  	
+ 	__eventloop_initialized = 0
+ 	def __ensure_WMAvailable(klass):
+ 		if klass.__eventloop_initialized: return 1
+ 		if not MacOS.WMAvailable(): return 0
+ 		# Workaround for a but in MacOSX 10.2: we must have an event
+ 		# loop before we can call AESend.
+ 		Evt.WaitNextEvent(0,0)
+ 		return 1
+ 	__ensure_WMAvailable = classmethod(__ensure_WMAvailable)
+ 
  	def __init__(self, signature=None, start=0, timeout=0):
  		"""Create a communication channel with a particular application.
***************
*** 202,206 ****
  	def sendevent(self, event):
  		"""Send a pre-created appleevent, await the reply and unpack it"""
! 		
  		reply = event.AESend(self.send_flags, self.send_priority,
  		                          self.send_timeout)
--- 213,218 ----
  	def sendevent(self, event):
  		"""Send a pre-created appleevent, await the reply and unpack it"""
! 		if not self.__ensure_WMAvailable():
! 			raise RuntimeError, "No window manager access, cannot send AppleEvent"
  		reply = event.AESend(self.send_flags, self.send_priority,
  		                          self.send_timeout)