(preliminary) framework for scriptable applications
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"""MiniAEFrame - A first stab at an AE Application framework.
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This framework is still work-in-progress, so do not rely on it remaining
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unchanged.
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"""
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import sys
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import traceback
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import MacOS
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import AE
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from AppleEvents import *
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import Evt
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from Events import *
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import Menu
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import Win
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from Windows import *
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import Qd
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import aetools
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import EasyDialogs
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kHighLevelEvent = 23 # Not defined anywhere for Python yet?
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class MiniApplication:
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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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# Initialize menu
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self.appleid = 1
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self.quitid = 2
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Menu.ClearMenuBar()
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self.applemenu = applemenu = Menu.NewMenu(self.appleid, "\024")
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applemenu.AppendMenu("All about cgitest...;(-")
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applemenu.AppendResMenu('DRVR')
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applemenu.InsertMenu(0)
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self.quitmenu = Menu.NewMenu(self.quitid, "File")
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self.quitmenu.AppendMenu("Quit")
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self.quitmenu.InsertMenu(0)
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Menu.DrawMenuBar()
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def __del__(self):
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self.close()
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def close(self):
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pass
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def mainloop(self, mask = everyEvent, timeout = 60*60):
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while not self.quitting:
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self.dooneevent(mask, timeout)
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def dooneevent(self, mask = everyEvent, timeout = 60*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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msg = "High Level Event: %s %s" % \
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(`code(message)`, `code(h | (v<<16))`)
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try:
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AE.AEProcessAppleEvent(event)
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except AE.Error, err:
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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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elif what == keyDown:
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c = chr(message & charCodeMask)
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if c == '.' and modifiers & cmdKey:
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raise KeyboardInterrupt, "Command-period"
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elif what == mouseDown:
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partcode, window = Win.FindWindow(where)
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if partcode == inMenuBar:
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result = Menu.MenuSelect(where)
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id = (result>>16) & 0xffff # Hi word
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item = result & 0xffff # Lo word
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if id == self.appleid:
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if item == 1:
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EasyDialogs.Message("cgitest - First cgi test")
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return
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elif item > 1:
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name = self.applemenu.GetItem(item)
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Qd.OpenDeskAcc(name)
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return
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if id == self.quitid and item == 1:
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print "Menu-requested QUIT"
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self.quitting = 1
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# Anything not handled is passed to Python/SIOUX
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MacOS.HandleEvent(event)
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class AEServer:
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def __init__(self):
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self.ae_handlers = {}
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def installaehandler(self, classe, type, callback):
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AE.AEInstallEventHandler(classe, type, self.callback_wrapper)
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self.ae_handlers[(classe, type)] = callback
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def close(self):
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for classe, type in self.ae_handlers.keys():
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AE.AERemoveEventHandler(classe, type)
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def callback_wrapper(self, _request, _reply):
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_parameters, _attributes = aetools.unpackevent(_request)
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_class = _attributes['evcl'].type
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_type = _attributes['evid'].type
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if self.ae_handlers.has_key((_class, _type)):
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_function = self.ae_handlers[(_class, _type)]
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elif self.ae_handlers.has_key((_class, '****')):
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_function = self.ae_handlers[(_class, '****')]
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elif self.ae_handlers.has_key(('****', '****')):
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_function = self.ae_handlers[('****', '****')]
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else:
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raise 'Cannot happen: AE callback without handler', (_class, _type)
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# XXXX Do key-to-name mapping here
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_parameters['_attributes'] = _attributes
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_parameters['_class'] = _class
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_parameters['_type'] = _type
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if _parameters.has_key('----'):
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_object = _parameters['----']
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del _parameters['----']
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rv = apply(_function, (_object,), _parameters)
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else:
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rv = apply(_function, (), _parameters)
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if rv == None:
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aetools.packevent(_reply, {})
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else:
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aetools.packevent(_reply, {'----':rv})
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def code(x):
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"Convert a long int to the 4-character code it really is"
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s = ''
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for i in range(4):
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x, c = divmod(x, 256)
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s = chr(c) + s
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return s
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class _Test(AEServer, MiniApplication):
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"""Mini test application, handles required events"""
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def __init__(self):
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MiniApplication.__init__(self)
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AEServer.__init__(self)
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self.installaehandler('aevt', 'oapp', self.open_app)
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self.installaehandler('aevt', 'quit', self.quit)
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self.installaehandler('aevt', '****', self.other)
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self.mainloop()
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def quit(self, **args):
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self.quitting = 1
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def open_app(self, **args):
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pass
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def other(self, _object=None, _class=None, _type=None, **args):
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print 'AppleEvent', (_class, _type), 'for', _object, 'Other args:', args
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if __name__ == '__main__':
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_Test()
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