Python code coverage for Lib/plat-mac/MiniAEFrame.py

#	count	content
1	n/a	"""MiniAEFrame - A minimal AppleEvent Application framework.
2	n/a
3	n/a	There are two classes:
4	n/a	AEServer -- a mixin class offering nice AE handling.
5	n/a	MiniApplication -- a very minimal alternative to FrameWork.py,
6	n/a	only suitable for the simplest of AppleEvent servers.
7	n/a	"""
8	n/a
9	n/a	from warnings import warnpy3k
10	n/a	warnpy3k("In 3.x, the MiniAEFrame module is removed.", stacklevel=2)
11	n/a
12	n/a	import traceback
13	n/a	import MacOS
14	n/a	from Carbon import AE
15	n/a	from Carbon.AppleEvents import *
16	n/a	from Carbon import Evt
17	n/a	from Carbon.Events import *
18	n/a	from Carbon import Menu
19	n/a	from Carbon import Win
20	n/a	from Carbon.Windows import *
21	n/a	from Carbon import Qd
22	n/a
23	n/a	import aetools
24	n/a	import EasyDialogs
25	n/a
26	n/a	kHighLevelEvent = 23 # Not defined anywhere for Python yet?
27	n/a
28	n/a
29	n/a	class MiniApplication:
30	n/a
31	n/a	"""A minimal FrameWork.Application-like class"""
32	n/a
33	n/a	def __init__(self):
34	n/a	self.quitting = 0
35	n/a	# Initialize menu
36	n/a	self.appleid = 1
37	n/a	self.quitid = 2
38	n/a	Menu.ClearMenuBar()
39	n/a	self.applemenu = applemenu = Menu.NewMenu(self.appleid, "\024")
40	n/a	applemenu.AppendMenu("%s;(-" % self.getaboutmenutext())
41	n/a	if MacOS.runtimemodel == 'ppc':
42	n/a	applemenu.AppendResMenu('DRVR')
43	n/a	applemenu.InsertMenu(0)
44	n/a	self.quitmenu = Menu.NewMenu(self.quitid, "File")
45	n/a	self.quitmenu.AppendMenu("Quit")
46	n/a	self.quitmenu.SetItemCmd(1, ord("Q"))
47	n/a	self.quitmenu.InsertMenu(0)
48	n/a	Menu.DrawMenuBar()
49	n/a
50	n/a	def __del__(self):
51	n/a	self.close()
52	n/a
53	n/a	def close(self):
54	n/a	pass
55	n/a
56	n/a	def mainloop(self, mask = everyEvent, timeout = 60*60):
57	n/a	while not self.quitting:
58	n/a	self.dooneevent(mask, timeout)
59	n/a
60	n/a	def _quit(self):
61	n/a	self.quitting = 1
62	n/a
63	n/a	def dooneevent(self, mask = everyEvent, timeout = 60*60):
64	n/a	got, event = Evt.WaitNextEvent(mask, timeout)
65	n/a	if got:
66	n/a	self.lowlevelhandler(event)
67	n/a
68	n/a	def lowlevelhandler(self, event):
69	n/a	what, message, when, where, modifiers = event
70	n/a	h, v = where
71	n/a	if what == kHighLevelEvent:
72	n/a	msg = "High Level Event: %r %r" % (code(message), code(h \| (v<<16)))
73	n/a	try:
74	n/a	AE.AEProcessAppleEvent(event)
75	n/a	except AE.Error, err:
76	n/a	print 'AE error: ', err
77	n/a	print 'in', msg
78	n/a	traceback.print_exc()
79	n/a	return
80	n/a	elif what == keyDown:
81	n/a	c = chr(message & charCodeMask)
82	n/a	if modifiers & cmdKey:
83	n/a	if c == '.':
84	n/a	raise KeyboardInterrupt, "Command-period"
85	n/a	if c == 'q':
86	n/a	if hasattr(MacOS, 'OutputSeen'):
87	n/a	MacOS.OutputSeen()
88	n/a	self.quitting = 1
89	n/a	return
90	n/a	elif what == mouseDown:
91	n/a	partcode, window = Win.FindWindow(where)
92	n/a	if partcode == inMenuBar:
93	n/a	result = Menu.MenuSelect(where)
94	n/a	id = (result>>16) & 0xffff # Hi word
95	n/a	item = result & 0xffff # Lo word
96	n/a	if id == self.appleid:
97	n/a	if item == 1:
98	n/a	EasyDialogs.Message(self.getabouttext())
99	n/a	elif item > 1 and hasattr(Menu, 'OpenDeskAcc'):
100	n/a	name = self.applemenu.GetMenuItemText(item)
101	n/a	Menu.OpenDeskAcc(name)
102	n/a	elif id == self.quitid and item == 1:
103	n/a	if hasattr(MacOS, 'OutputSeen'):
104	n/a	MacOS.OutputSeen()
105	n/a	self.quitting = 1
106	n/a	Menu.HiliteMenu(0)
107	n/a	return
108	n/a	# Anything not handled is passed to Python/SIOUX
109	n/a	if hasattr(MacOS, 'HandleEvent'):
110	n/a	MacOS.HandleEvent(event)
111	n/a	else:
112	n/a	print "Unhandled event:", event
113	n/a
114	n/a	def getabouttext(self):
115	n/a	return self.__class__.__name__
116	n/a
117	n/a	def getaboutmenutext(self):
118	n/a	return "About %s\311" % self.__class__.__name__
119	n/a
120	n/a
121	n/a	class AEServer:
122	n/a
123	n/a	def __init__(self):
124	n/a	self.ae_handlers = {}
125	n/a
126	n/a	def installaehandler(self, classe, type, callback):
127	n/a	AE.AEInstallEventHandler(classe, type, self.callback_wrapper)
128	n/a	self.ae_handlers[(classe, type)] = callback
129	n/a
130	n/a	def close(self):
131	n/a	for classe, type in self.ae_handlers.keys():
132	n/a	AE.AERemoveEventHandler(classe, type)
133	n/a
134	n/a	def callback_wrapper(self, _request, _reply):
135	n/a	_parameters, _attributes = aetools.unpackevent(_request)
136	n/a	_class = _attributes['evcl'].type
137	n/a	_type = _attributes['evid'].type
138	n/a
139	n/a	if (_class, _type) in self.ae_handlers:
140	n/a	_function = self.ae_handlers[(_class, _type)]
141	n/a	elif (_class, '****') in self.ae_handlers:
142	n/a	_function = self.ae_handlers[(_class, '****')]
143	n/a	elif ('**', '**') in self.ae_handlers:
144	n/a	_function = self.ae_handlers[('**', '**')]
145	n/a	else:
146	n/a	raise 'Cannot happen: AE callback without handler', (_class, _type)
147	n/a
148	n/a	# XXXX Do key-to-name mapping here
149	n/a
150	n/a	_parameters['_attributes'] = _attributes
151	n/a	_parameters['_class'] = _class
152	n/a	_parameters['_type'] = _type
153	n/a	if '----' in _parameters:
154	n/a	_object = _parameters['----']
155	n/a	del _parameters['----']
156	n/a	# The try/except that used to be here can mask programmer errors.
157	n/a	# Let the program crash, the programmer can always add a **args
158	n/a	# to the formal parameter list.
159	n/a	rv = _function(_object, **_parameters)
160	n/a	else:
161	n/a	#Same try/except comment as above
162	n/a	rv = _function(**_parameters)
163	n/a
164	n/a	if rv is None:
165	n/a	aetools.packevent(_reply, {})
166	n/a	else:
167	n/a	aetools.packevent(_reply, {'----':rv})
168	n/a
169	n/a
170	n/a	def code(x):
171	n/a	"Convert a long int to the 4-character code it really is"
172	n/a	s = ''
173	n/a	for i in range(4):
174	n/a	x, c = divmod(x, 256)
175	n/a	s = chr(c) + s
176	n/a	return s
177	n/a
178	n/a	class _Test(AEServer, MiniApplication):
179	n/a	"""Mini test application, handles required events"""
180	n/a
181	n/a	def __init__(self):
182	n/a	MiniApplication.__init__(self)
183	n/a	AEServer.__init__(self)
184	n/a	self.installaehandler('aevt', 'oapp', self.open_app)
185	n/a	self.installaehandler('aevt', 'quit', self.quit)
186	n/a	self.installaehandler('**', '**', self.other)
187	n/a	self.mainloop()
188	n/a
189	n/a	def quit(self, **args):
190	n/a	self._quit()
191	n/a
192	n/a	def open_app(self, **args):
193	n/a	pass
194	n/a
195	n/a	def other(self, _object=None, _class=None, _type=None, **args):
196	n/a	print 'AppleEvent', (_class, _type), 'for', _object, 'Other args:', args
197	n/a
198	n/a
199	n/a	if __name__ == '__main__':
200	n/a	_Test()