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1"""argvemulator - create sys.argv from OSA events. Used by applets that
2want unix-style arguments.
3"""
4
5from warnings import warnpy3k
6warnpy3k("In 3.x, the argvemulator module is removed.", stacklevel=2)
7
8import sys
9import traceback
10from Carbon import AE
11from Carbon.AppleEvents import *
12from Carbon import Evt
13from Carbon import File
14from Carbon.Events import *
15import aetools
16
17class ArgvCollector:
18
19    """A minimal FrameWork.Application-like class"""
20
21    def __init__(self):
22        self.quitting = 0
23        # Remove the funny -psn_xxx_xxx argument
24        if len(sys.argv) > 1 and sys.argv[1][:4] == '-psn':
25            del sys.argv[1]
26
27        AE.AEInstallEventHandler(kCoreEventClass, kAEOpenApplication, self.__runapp)
28        AE.AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments, self.__openfiles)
29
30    def close(self):
31        AE.AERemoveEventHandler(kCoreEventClass, kAEOpenApplication)
32        AE.AERemoveEventHandler(kCoreEventClass, kAEOpenDocuments)
33
34    def mainloop(self, mask = highLevelEventMask, timeout = 1*60):
35        # Note: this is not the right way to run an event loop in OSX or even
36        # "recent" versions of MacOS9. This is however code that has proven
37        # itself.
38        stoptime = Evt.TickCount() + timeout
39        while not self.quitting and Evt.TickCount() < stoptime:
40            self._dooneevent(mask, timeout)
41
42        if not self.quitting:
43            print "argvemulator: timeout waiting for arguments"
44
45        self.close()
46
47    def _dooneevent(self, mask = highLevelEventMask, timeout = 1*60):
48        got, event = Evt.WaitNextEvent(mask, timeout)
49        if got:
50            self._lowlevelhandler(event)
51
52    def _lowlevelhandler(self, event):
53        what, message, when, where, modifiers = event
54        h, v = where
55        if what == kHighLevelEvent:
56            try:
57                AE.AEProcessAppleEvent(event)
58            except AE.Error, err:
59                msg = "High Level Event: %r %r" % (hex(message), hex(h | (v<<16)))
60                print 'AE error: ', err
61                print 'in', msg
62                traceback.print_exc()
63            return
64        else:
65            print "Unhandled event:", event
66
67
68    def _quit(self):
69        self.quitting = 1
70
71    def __runapp(self, requestevent, replyevent):
72        self._quit()
73
74    def __openfiles(self, requestevent, replyevent):
75        try:
76            listdesc = requestevent.AEGetParamDesc(keyDirectObject, typeAEList)
77            for i in range(listdesc.AECountItems()):
78                aliasdesc = listdesc.AEGetNthDesc(i+1, typeAlias)[1]
79                alias = File.Alias(rawdata=aliasdesc.data)
80                fsref = alias.FSResolveAlias(None)[0]
81                pathname = fsref.as_pathname()
82                sys.argv.append(pathname)
83        except  Exception, e:
84            print "argvemulator.py warning: can't unpack an open document event"
85            import traceback
86            traceback.print_exc()
87
88        self._quit()
89
90if __name__ == '__main__':
91    ArgvCollector().mainloop()
92    print "sys.argv=", sys.argv
93