# This script will generate the AppleEvents interface for Python. # It uses the "bgen" package to generate C code. # It execs the file aegen.py which contain the function definitions # (aegen.py was generated by aescan.py, scanning the <AppleEvents.h> header file). from macsupport import * AEArrayType = Type("AEArrayType", "c") AESendMode = Type("AESendMode", "l") AESendPriority = Type("AESendPriority", "h") AEInteractAllowed = Type("AEInteractAllowed", "b") AEReturnID = Type("AEReturnID", "h") AETransactionID = Type("AETransactionID", "l") AEEventClass = OSTypeType('AEEventClass') AEEventID = OSTypeType('AEEventID') AEKeyword = OSTypeType('AEKeyword') DescType = OSTypeType('DescType') AEDesc = OpaqueType('AEDesc') AEDesc_ptr = OpaqueType('AEDesc') AEAddressDesc = OpaqueType('AEAddressDesc', 'AEDesc') AEAddressDesc_ptr = OpaqueType('AEAddressDesc', 'AEDesc') AEDescList = OpaqueType('AEDescList', 'AEDesc') AEDescList_ptr = OpaqueType('AEDescList', 'AEDesc') AERecord = OpaqueType('AERecord', 'AEDesc') AERecord_ptr = OpaqueType('AERecord', 'AEDesc') AppleEvent = OpaqueType('AppleEvent', 'AEDesc') AppleEvent_ptr = OpaqueType('AppleEvent', 'AEDesc') class EHType(Type): def __init__(self, name = 'EventHandler', format = ''): Type.__init__(self, name, format) def declare(self, name): Output("AEEventHandlerUPP %s__proc__ = upp_GenericEventHandler;", name) Output("PyObject *%s;", name) def getargsFormat(self): return "O" def getargsArgs(self, name): return "&%s" % name def passInput(self, name): return "%s__proc__, (long)%s" % (name, name) def passOutput(self, name): return "&%s__proc__, (long *)&%s" % (name, name) def mkvalueFormat(self): return "O" def mkvalueArgs(self, name): return name def cleanup(self, name): Output("Py_INCREF(%s); /* XXX leak, but needed */", name) class EHNoRefConType(EHType): def passInput(self, name): return "upp_GenericEventHandler" EventHandler = EHType() EventHandlerNoRefCon = EHNoRefConType() IdleProcPtr = FakeType("upp_AEIdleProc") AEIdleUPP = IdleProcPtr EventFilterProcPtr = FakeType("(AEFilterUPP)0") AEFilterUPP = EventFilterProcPtr NMRecPtr = FakeType("(NMRecPtr)0") EventHandlerProcPtr = FakeType("upp_GenericEventHandler") AEEventHandlerUPP = EventHandlerProcPtr AlwaysFalse = FakeType("0") AEFunction = OSErrWeakLinkFunctionGenerator AEMethod = OSErrWeakLinkMethodGenerator includestuff = includestuff + """ #include <Carbon/Carbon.h> #ifdef USE_TOOLBOX_OBJECT_GLUE extern PyObject *_AEDesc_New(AEDesc *); extern int _AEDesc_Convert(PyObject *, AEDesc *); #define AEDesc_New _AEDesc_New #define AEDesc_NewBorrowed _AEDesc_NewBorrowed #define AEDesc_Convert _AEDesc_Convert #endif typedef long refcontype; static pascal OSErr GenericEventHandler(const AppleEvent *request, AppleEvent *reply, refcontype refcon); /* Forward */ AEEventHandlerUPP upp_GenericEventHandler; static pascal Boolean AEIdleProc(EventRecord *theEvent, long *sleepTime, RgnHandle *mouseRgn) { if ( PyOS_InterruptOccurred() ) return 1; return 0; } AEIdleUPP upp_AEIdleProc; """ finalstuff = finalstuff + """ static pascal OSErr GenericEventHandler(const AppleEvent *request, AppleEvent *reply, refcontype refcon) { PyObject *handler = (PyObject *)refcon; AEDescObject *requestObject, *replyObject; PyObject *args, *res; if ((requestObject = (AEDescObject *)AEDesc_New((AppleEvent *)request)) == NULL) { return -1; } if ((replyObject = (AEDescObject *)AEDesc_New(reply)) == NULL) { Py_DECREF(requestObject); return -1; } if ((args = Py_BuildValue("OO", requestObject, replyObject)) == NULL) { Py_DECREF(requestObject); Py_DECREF(replyObject); return -1; } res = PyEval_CallObject(handler, args); requestObject->ob_itself.descriptorType = 'null'; requestObject->ob_itself.dataHandle = NULL; replyObject->ob_itself.descriptorType = 'null'; replyObject->ob_itself.dataHandle = NULL; Py_DECREF(args); if (res == NULL) { PySys_WriteStderr("Exception in AE event handler function\\n"); PyErr_Print(); return -1; } Py_DECREF(res); return noErr; } PyObject *AEDesc_NewBorrowed(AEDesc *itself) { PyObject *it; it = AEDesc_New(itself); if (it) ((AEDescObject *)it)->ob_owned = 0; return (PyObject *)it; } """ initstuff = initstuff + """ upp_AEIdleProc = NewAEIdleUPP(AEIdleProc); upp_GenericEventHandler = NewAEEventHandlerUPP(GenericEventHandler); PyMac_INIT_TOOLBOX_OBJECT_NEW(AEDesc *, AEDesc_New); PyMac_INIT_TOOLBOX_OBJECT_NEW(AEDesc *, AEDesc_NewBorrowed); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(AEDesc, AEDesc_Convert); """ module = MacModule('_AE', 'AE', includestuff, finalstuff, initstuff) class AEDescDefinition(PEP253Mixin, GlobalObjectDefinition): getsetlist = [( 'type', 'return PyMac_BuildOSType(self->ob_itself.descriptorType);', None, 'Type of this AEDesc' ), ( 'data', """ PyObject *res; Size size; char *ptr; OSErr err; size = AEGetDescDataSize(&self->ob_itself); if ( (res = PyString_FromStringAndSize(NULL, size)) == NULL ) return NULL; if ( (ptr = PyString_AsString(res)) == NULL ) return NULL; if ( (err=AEGetDescData(&self->ob_itself, ptr, size)) < 0 ) return PyMac_Error(err); return res; """, None, 'The raw data in this AEDesc' )] def __init__(self, name, prefix = None, itselftype = None): GlobalObjectDefinition.__init__(self, name, prefix or name, itselftype or name) self.argref = "*" def outputStructMembers(self): GlobalObjectDefinition.outputStructMembers(self) Output("int ob_owned;") def outputInitStructMembers(self): GlobalObjectDefinition.outputInitStructMembers(self) Output("it->ob_owned = 1;") def outputCleanupStructMembers(self): Output("if (self->ob_owned) AEDisposeDesc(&self->ob_itself);") aedescobject = AEDescDefinition('AEDesc') module.addobject(aedescobject) functions = [] aedescmethods = [] execfile('aegen.py') ##execfile('aedatamodelgen.py') # Manual generator AutoDispose_body = """ int onoff, old; if (!PyArg_ParseTuple(_args, "i", &onoff)) return NULL; old = _self->ob_owned; _self->ob_owned = onoff; _res = Py_BuildValue("i", old); return _res; """ f = ManualGenerator("AutoDispose", AutoDispose_body) f.docstring = lambda: "(int)->int. Automatically AEDisposeDesc the object on Python object cleanup" aedescmethods.append(f) for f in functions: module.add(f) for f in aedescmethods: aedescobject.add(f) SetOutputFileName('_AEmodule.c') module.generate()