|
| 1 | +"""MiniAEFrame - A first stab at an AE Application framework. |
| 2 | +This framework is still work-in-progress, so do not rely on it remaining |
| 3 | +unchanged. |
| 4 | +""" |
| 5 | + |
| 6 | +import sys |
| 7 | +import traceback |
| 8 | +import MacOS |
| 9 | +import AE |
| 10 | +from AppleEvents import * |
| 11 | +import Evt |
| 12 | +from Events import * |
| 13 | +import Menu |
| 14 | +import Win |
| 15 | +from Windows import * |
| 16 | +import Qd |
| 17 | + |
| 18 | +import aetools |
| 19 | +import EasyDialogs |
| 20 | + |
| 21 | +kHighLevelEvent = 23 # Not defined anywhere for Python yet? |
| 22 | + |
| 23 | +class MiniApplication: |
| 24 | + """A minimal FrameWork.Application-like class""" |
| 25 | + |
| 26 | + def __init__(self): |
| 27 | + self.quitting = 0 |
| 28 | + # Initialize menu |
| 29 | + self.appleid = 1 |
| 30 | + self.quitid = 2 |
| 31 | + Menu.ClearMenuBar() |
| 32 | + self.applemenu = applemenu = Menu.NewMenu(self.appleid, "\024") |
| 33 | + applemenu.AppendMenu("All about cgitest...;(-") |
| 34 | + applemenu.AppendResMenu('DRVR') |
| 35 | + applemenu.InsertMenu(0) |
| 36 | + self.quitmenu = Menu.NewMenu(self.quitid, "File") |
| 37 | + self.quitmenu.AppendMenu("Quit") |
| 38 | + self.quitmenu.InsertMenu(0) |
| 39 | + Menu.DrawMenuBar() |
| 40 | + |
| 41 | + def __del__(self): |
| 42 | + self.close() |
| 43 | + |
| 44 | + def close(self): |
| 45 | + pass |
| 46 | + |
| 47 | + def mainloop(self, mask = everyEvent, timeout = 60*60): |
| 48 | + while not self.quitting: |
| 49 | + self.dooneevent(mask, timeout) |
| 50 | + |
| 51 | + def dooneevent(self, mask = everyEvent, timeout = 60*60): |
| 52 | + got, event = Evt.WaitNextEvent(mask, timeout) |
| 53 | + if got: |
| 54 | + self.lowlevelhandler(event) |
| 55 | + |
| 56 | + def lowlevelhandler(self, event): |
| 57 | + what, message, when, where, modifiers = event |
| 58 | + h, v = where |
| 59 | + if what == kHighLevelEvent: |
| 60 | + msg = "High Level Event: %s %s" % \ |
| 61 | + (`code(message)`, `code(h | (v<<16))`) |
| 62 | + try: |
| 63 | + AE.AEProcessAppleEvent(event) |
| 64 | + except AE.Error, err: |
| 65 | + print 'AE error: ', err |
| 66 | + print 'in', msg |
| 67 | + traceback.print_exc() |
| 68 | + return |
| 69 | + elif what == keyDown: |
| 70 | + c = chr(message & charCodeMask) |
| 71 | + if c == '.' and modifiers & cmdKey: |
| 72 | + raise KeyboardInterrupt, "Command-period" |
| 73 | + elif what == mouseDown: |
| 74 | + partcode, window = Win.FindWindow(where) |
| 75 | + if partcode == inMenuBar: |
| 76 | + result = Menu.MenuSelect(where) |
| 77 | + id = (result>>16) & 0xffff # Hi word |
| 78 | + item = result & 0xffff # Lo word |
| 79 | + if id == self.appleid: |
| 80 | + if item == 1: |
| 81 | + EasyDialogs.Message("cgitest - First cgi test") |
| 82 | + return |
| 83 | + elif item > 1: |
| 84 | + name = self.applemenu.GetItem(item) |
| 85 | + Qd.OpenDeskAcc(name) |
| 86 | + return |
| 87 | + if id == self.quitid and item == 1: |
| 88 | + print "Menu-requested QUIT" |
| 89 | + self.quitting = 1 |
| 90 | + # Anything not handled is passed to Python/SIOUX |
| 91 | + MacOS.HandleEvent(event) |
| 92 | + |
| 93 | +class AEServer: |
| 94 | + |
| 95 | + def __init__(self): |
| 96 | + self.ae_handlers = {} |
| 97 | + |
| 98 | + def installaehandler(self, classe, type, callback): |
| 99 | + AE.AEInstallEventHandler(classe, type, self.callback_wrapper) |
| 100 | + self.ae_handlers[(classe, type)] = callback |
| 101 | + |
| 102 | + def close(self): |
| 103 | + for classe, type in self.ae_handlers.keys(): |
| 104 | + AE.AERemoveEventHandler(classe, type) |
| 105 | + |
| 106 | + def callback_wrapper(self, _request, _reply): |
| 107 | + _parameters, _attributes = aetools.unpackevent(_request) |
| 108 | + _class = _attributes['evcl'].type |
| 109 | + _type = _attributes['evid'].type |
| 110 | + |
| 111 | + if self.ae_handlers.has_key((_class, _type)): |
| 112 | + _function = self.ae_handlers[(_class, _type)] |
| 113 | + elif self.ae_handlers.has_key((_class, '****')): |
| 114 | + _function = self.ae_handlers[(_class, '****')] |
| 115 | + elif self.ae_handlers.has_key(('****', '****')): |
| 116 | + _function = self.ae_handlers[('****', '****')] |
| 117 | + else: |
| 118 | + raise 'Cannot happen: AE callback without handler', (_class, _type) |
| 119 | + |
| 120 | + # XXXX Do key-to-name mapping here |
| 121 | + |
| 122 | + _parameters['_attributes'] = _attributes |
| 123 | + _parameters['_class'] = _class |
| 124 | + _parameters['_type'] = _type |
| 125 | + if _parameters.has_key('----'): |
| 126 | + _object = _parameters['----'] |
| 127 | + del _parameters['----'] |
| 128 | + rv = apply(_function, (_object,), _parameters) |
| 129 | + else: |
| 130 | + rv = apply(_function, (), _parameters) |
| 131 | + |
| 132 | + if rv == None: |
| 133 | + aetools.packevent(_reply, {}) |
| 134 | + else: |
| 135 | + aetools.packevent(_reply, {'----':rv}) |
| 136 | + |
| 137 | +def code(x): |
| 138 | + "Convert a long int to the 4-character code it really is" |
| 139 | + s = '' |
| 140 | + for i in range(4): |
| 141 | + x, c = divmod(x, 256) |
| 142 | + s = chr(c) + s |
| 143 | + return s |
| 144 | + |
| 145 | +class _Test(AEServer, MiniApplication): |
| 146 | + """Mini test application, handles required events""" |
| 147 | + |
| 148 | + def __init__(self): |
| 149 | + MiniApplication.__init__(self) |
| 150 | + AEServer.__init__(self) |
| 151 | + self.installaehandler('aevt', 'oapp', self.open_app) |
| 152 | + self.installaehandler('aevt', 'quit', self.quit) |
| 153 | + self.installaehandler('aevt', '****', self.other) |
| 154 | + self.mainloop() |
| 155 | + |
| 156 | + def quit(self, **args): |
| 157 | + self.quitting = 1 |
| 158 | + |
| 159 | + def open_app(self, **args): |
| 160 | + pass |
| 161 | + |
| 162 | + def other(self, _object=None, _class=None, _type=None, **args): |
| 163 | + print 'AppleEvent', (_class, _type), 'for', _object, 'Other args:', args |
| 164 | + |
| 165 | +if __name__ == '__main__': |
| 166 | + _Test() |
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