ref: 7404301024208b605b0e81268469ddf3bf4cd00a
dir: /demos/mac/getargv.c/
/*********************************************************** Copyright 1991-1997 by Stichting Mathematisch Centrum, Amsterdam, The Netherlands. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the names of Stichting Mathematisch Centrum or CWI not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ /* Construct argc and argv for main() by using Apple Events */ /* From Jack's implementation for STDWIN */ /* Modified for use with FreeType from MacPython's macgetargv.c by Just van Rossum <[email protected]> */ #include <stdlib.h> #include <string.h> #include "getargv.h" #include <Types.h> #include <Files.h> #include <Events.h> #include <Processes.h> #include <Errors.h> #include <AppleEvents.h> #include <AEObjects.h> #ifdef GENERATINGCFM /* Defined to 0 or 1 in Universal headers */ #define HAVE_UNIVERSAL_HEADERS #endif #ifndef HAVE_UNIVERSAL_HEADERS #define NewAEEventHandlerProc(x) (x) #define AEEventHandlerUPP EventHandlerProcPtr #endif static int arg_count; static char *arg_vector[256]; static char app_name[256]; static int app_name_inited; /* Duplicate a string to the heap. */ static char * strdup(char *src) { char *dst = malloc(strlen(src) + 1); if (dst) strcpy(dst, src); return dst; } /* Given an FSSpec, return the FSSpec of the parent folder */ static OSErr get_folder_parent (FSSpec * fss, FSSpec * parent) { CInfoPBRec rec; short err; * parent = * fss; rec.hFileInfo.ioNamePtr = parent->name; rec.hFileInfo.ioVRefNum = parent->vRefNum; rec.hFileInfo.ioDirID = parent->parID; rec.hFileInfo.ioFDirIndex = -1; rec.hFileInfo.ioFVersNum = 0; if (err = PBGetCatInfoSync (& rec)) return err; parent->parID = rec.dirInfo.ioDrParID; /* parent->name[0] = 0; */ return 0; } /* Given an FSSpec return a full, colon-separated pathname */ static OSErr FTMac_GetFullPath (FSSpec *fss, char *buf) { short err; FSSpec fss_parent, fss_current; char tmpbuf[256]; int plen; fss_current = *fss; plen = fss_current.name[0]; memcpy(buf, &fss_current.name[1], plen); buf[plen] = 0; /* Special case for disk names */ if ( fss_current.parID <= 1 ) { buf[plen++] = ':'; buf[plen] = 0; return 0; } while (fss_current.parID > 1) { /* Get parent folder name */ if (err = get_folder_parent(&fss_current, &fss_parent)) return err; fss_current = fss_parent; /* Prepend path component just found to buf */ plen = fss_current.name[0]; if (strlen(buf) + plen + 1 > 256) { /* Oops... Not enough space (shouldn't happen) */ *buf = 0; return -1; } memcpy(tmpbuf, &fss_current.name[1], plen); tmpbuf[plen] = ':'; strcpy(&tmpbuf[plen+1], buf); strcpy(buf, tmpbuf); } return 0; } /* Initialize name of current application */ static OSErr init_app_name() { ProcessSerialNumber currentPSN; ProcessInfoRec info; OSErr err; FSSpec appSpec; if ( app_name_inited ) return 0; currentPSN.highLongOfPSN = 0; currentPSN.lowLongOfPSN = kCurrentProcess; info.processInfoLength = sizeof(ProcessInfoRec); info.processName = NULL; info.processAppSpec = &appSpec; if ( err=GetProcessInformation(¤tPSN, &info)) return err; strncpy(app_name, (char*)appSpec.name + 1, appSpec.name[0]); app_name[appSpec.name[0]] = '\0'; app_name_inited = 1; return 0; } /* Check that there aren't any args remaining in the event */ static OSErr get_missing_params(AppleEvent *theAppleEvent) { DescType theType; Size actualSize; OSErr err; err = AEGetAttributePtr(theAppleEvent, keyMissedKeywordAttr, typeWildCard, &theType, nil, 0, &actualSize); if (err == errAEDescNotFound) return noErr; else return errAEEventNotHandled; } static int got_one; /* Flag that we can stop getting events */ /* Handle the Print or Quit events (by failing) */ static pascal OSErr handle_not(AppleEvent *theAppleEvent, AppleEvent *reply, long refCon) { #pragma unused (reply, refCon) got_one = 1; return errAEEventNotHandled; } /* Handle the Open Application event (by ignoring it) */ static pascal OSErr handle_open_app(AppleEvent *theAppleEvent, AppleEvent *reply, long refCon) { #pragma unused (reply, refCon) #if 0 /* Test by Jack: would removing this facilitate debugging? */ got_one = 1; #endif return get_missing_params(theAppleEvent); } /* Handle the Open Document event, by adding an argument */ static pascal OSErr handle_open_doc(AppleEvent *theAppleEvent, AppleEvent *reply, long refCon) { #pragma unused (reply, refCon) OSErr err; AEDescList doclist; AEKeyword keywd; DescType rttype; long i, ndocs, size; FSSpec fss; char path[256]; got_one = 1; if (err = AEGetParamDesc(theAppleEvent, keyDirectObject, typeAEList, &doclist)) return err; if (err = get_missing_params(theAppleEvent)) return err; if (err = AECountItems(&doclist, &ndocs)) return err; for(i = 1; i <= ndocs; i++) { err = AEGetNthPtr(&doclist, i, typeFSS, &keywd, &rttype, &fss, sizeof(fss), &size); if (err) break; FTMac_GetFullPath(&fss, path); arg_vector[arg_count++] = strdup(path); } return err; } /* Install standard core event handlers */ static AEEventHandlerUPP open_doc_upp; static AEEventHandlerUPP open_app_upp; static AEEventHandlerUPP not_upp; static void set_ae_handlers() { open_doc_upp = NewAEEventHandlerProc(handle_open_doc); open_app_upp = NewAEEventHandlerProc(handle_open_app); not_upp = NewAEEventHandlerProc(handle_not); AEInstallEventHandler(kCoreEventClass, kAEOpenApplication, open_app_upp, 0L, false); AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments, open_doc_upp, 0L, false); AEInstallEventHandler(kCoreEventClass, kAEPrintDocuments, not_upp, 0L, false); AEInstallEventHandler(kCoreEventClass, kAEQuitApplication, not_upp, 0L, false); } /* Uninstall standard core event handlers */ static void reset_ae_handlers() { AERemoveEventHandler(kCoreEventClass, kAEOpenApplication, open_app_upp, false); AERemoveEventHandler(kCoreEventClass, kAEOpenDocuments, open_doc_upp, false); AERemoveEventHandler(kCoreEventClass, kAEPrintDocuments, not_upp, false); AERemoveEventHandler(kCoreEventClass, kAEQuitApplication, not_upp, false); } /* Wait for events until a core event has been handled */ static void event_loop() { EventRecord event; int n; int ok; got_one = 0; for (n = 0; n < 100 && !got_one; n++) { SystemTask(); ok = GetNextEvent(everyEvent, &event); if (ok && event.what == kHighLevelEvent) { AEProcessAppleEvent(&event); } } } /* Get the argv vector, return argc. See macgetargv.h for more doco. */ int FTMac_GetArgv(pargv) char ***pargv; { arg_count = 0; (void)init_app_name(); arg_vector[arg_count++] = strdup(app_name); set_ae_handlers(); event_loop(); reset_ae_handlers(); arg_vector[arg_count] = NULL; *pargv = arg_vector; return arg_count; }