/* * tkMacOSXHLEvents.c -- * * Implements high level event support for the Macintosh. Currently, * the only event that really does anything is the Quit event. * * Copyright (c) 1995-1997 Sun Microsystems, Inc. * Copyright 2001, Apple Computer, Inc. * Copyright (c) 2006 Daniel A. Steffen * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * RCS: @(#) $Id: tkMacOSXHLEvents.c,v 1.5.2.10 2007/04/29 02:26:49 das Exp $ */ #include "tkMacOSXInt.h" /* * This is a Tcl_Event structure that the Quit AppleEvent handler * uses to schedule the ReallyKillMe function. */ typedef struct KillEvent { Tcl_Event header; /* Information that is standard for * all events. */ Tcl_Interp *interp; /* Interp that was passed to the * Quit AppleEvent */ } KillEvent; /* * Static functions used only in this file. */ static OSErr QuitHandler(const AppleEvent * event, AppleEvent * reply, long handlerRefcon); static OSErr OappHandler(const AppleEvent * event, AppleEvent * reply, long handlerRefcon); static OSErr RappHandler(const AppleEvent * event, AppleEvent * reply, long handlerRefcon); static OSErr OdocHandler(const AppleEvent * event, AppleEvent * reply, long handlerRefcon); static OSErr PrintHandler(const AppleEvent * event, AppleEvent * reply, long handlerRefcon); static OSErr ScriptHandler(const AppleEvent * event, AppleEvent * reply, long handlerRefcon); static OSErr PrefsHandler(const AppleEvent * event, AppleEvent * reply, long handlerRefcon); static int MissedAnyParameters(const AppleEvent *theEvent); static int ReallyKillMe(Tcl_Event *eventPtr, int flags); static OSStatus FSRefToDString(const FSRef *fsref, Tcl_DString *ds); /* *---------------------------------------------------------------------- * * TkMacOSXInitAppleEvents -- * * Initilize the Apple Events on the Macintosh. This registers the * core event handlers. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ void TkMacOSXInitAppleEvents( Tcl_Interp *interp) /* Interp to handle basic events. */ { AEEventHandlerUPP OappHandlerUPP, RappHandlerUPP, OdocHandlerUPP, PrintHandlerUPP, QuitHandlerUPP, ScriptHandlerUPP, PrefsHandlerUPP; static Boolean initialized = FALSE; if (!initialized) { initialized = TRUE; /* * Install event handlers for the core apple events. */ QuitHandlerUPP = NewAEEventHandlerUPP(QuitHandler); ChkErr(AEInstallEventHandler, kCoreEventClass, kAEQuitApplication, QuitHandlerUPP, (long) interp, false); OappHandlerUPP = NewAEEventHandlerUPP(OappHandler); ChkErr(AEInstallEventHandler, kCoreEventClass, kAEOpenApplication, OappHandlerUPP, (long) interp, false); RappHandlerUPP = NewAEEventHandlerUPP(RappHandler); ChkErr(AEInstallEventHandler, kCoreEventClass, kAEReopenApplication, RappHandlerUPP, (long) interp, false); OdocHandlerUPP = NewAEEventHandlerUPP(OdocHandler); ChkErr(AEInstallEventHandler, kCoreEventClass, kAEOpenDocuments, OdocHandlerUPP, (long) interp, false); PrintHandlerUPP = NewAEEventHandlerUPP(PrintHandler); ChkErr(AEInstallEventHandler, kCoreEventClass, kAEPrintDocuments, PrintHandlerUPP, (long) interp, false); PrefsHandlerUPP = NewAEEventHandlerUPP(PrefsHandler); ChkErr(AEInstallEventHandler, kCoreEventClass, kAEShowPreferences, PrefsHandlerUPP, (long) interp, false); if (interp) { ScriptHandlerUPP = NewAEEventHandlerUPP(ScriptHandler); ChkErr(AEInstallEventHandler, kAEMiscStandards, kAEDoScript, ScriptHandlerUPP, (long) interp, false); } } } /* *---------------------------------------------------------------------- * * TkMacOSXDoHLEvent -- * * Dispatch incomming highlevel events. * * Results: * None. * * Side effects: * Depends on the incoming event. * *---------------------------------------------------------------------- */ int TkMacOSXDoHLEvent( EventRecord *theEvent) { return AEProcessAppleEvent(theEvent); } /* *---------------------------------------------------------------------- * * QuitHandler -- * * This is the 'quit' core Apple event handler. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ OSErr QuitHandler( const AppleEvent * event, AppleEvent * reply, long handlerRefcon) { Tcl_Interp *interp = (Tcl_Interp *) handlerRefcon; KillEvent *eventPtr; if (interp) { /* * Call the exit command from the event loop, since you are not supposed * to call ExitToShell in an Apple Event Handler. We put this at the head * of Tcl's event queue because this message usually comes when the Mac is * shutting down, and we want to kill the shell as quickly as possible. */ eventPtr = (KillEvent *) ckalloc(sizeof(KillEvent)); eventPtr->header.proc = ReallyKillMe; eventPtr->interp = interp; Tcl_QueueEvent((Tcl_Event *) eventPtr, TCL_QUEUE_HEAD); } return noErr; } /* *---------------------------------------------------------------------- * * OappHandler -- * * This is the 'oapp' core Apple event handler. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ OSErr OappHandler( const AppleEvent * event, AppleEvent * reply, long handlerRefcon) { Tcl_CmdInfo dummy; Tcl_Interp *interp = (Tcl_Interp *) handlerRefcon; if (interp && Tcl_GetCommandInfo(interp, "::tk::mac::OpenApplication", &dummy)) { Tcl_GlobalEval(interp, "::tk::mac::OpenApplication"); } return noErr; } /* *---------------------------------------------------------------------- * * RappHandler -- * * This is the 'rapp' core Apple event handler. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ OSErr RappHandler( const AppleEvent * event, AppleEvent * reply, long handlerRefcon) { Tcl_CmdInfo dummy; Tcl_Interp *interp = (Tcl_Interp *) handlerRefcon; ProcessSerialNumber thePSN = {0, kCurrentProcess}; OSStatus err = ChkErr(SetFrontProcess, &thePSN); if (interp && Tcl_GetCommandInfo(interp, "::tk::mac::ReopenApplication", &dummy)) { Tcl_GlobalEval(interp, "::tk::mac::ReopenApplication"); } return err; } /* *---------------------------------------------------------------------- * * PrefsHandler -- * * This is the 'pref' core Apple event handler. * Called when the user selects 'Preferences...' in MacOS X * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ OSErr PrefsHandler( const AppleEvent * event, AppleEvent * reply, long handlerRefcon) { Tcl_CmdInfo dummy; Tcl_Interp *interp = (Tcl_Interp *) handlerRefcon; if (interp && Tcl_GetCommandInfo(interp, "::tk::mac::ShowPreferences", &dummy)) { Tcl_GlobalEval(interp, "::tk::mac::ShowPreferences"); } return noErr; } /* *---------------------------------------------------------------------- * * OdocHandler -- * * This is the 'odoc' core Apple event handler. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ OSErr OdocHandler( const AppleEvent * event, AppleEvent * reply, long handlerRefcon) { Tcl_Interp *interp = (Tcl_Interp *) handlerRefcon; AEDescList fileSpecList; FSRef file; OSStatus err; DescType type; Size actual; long count; AEKeyword keyword; long index; Tcl_DString command; Tcl_DString pathName; Tcl_CmdInfo dummy; /* * Don't bother if we don't have an interp or * the open document procedure doesn't exist. */ if ((interp == NULL) || (Tcl_GetCommandInfo(interp, "::tk::mac::OpenDocument", &dummy)) == 0) { return noErr; } /* * If we get any errors wil retrieving our parameters * we just return with no error. */ err = ChkErr(AEGetParamDesc, event, keyDirectObject, typeAEList, &fileSpecList); if (err != noErr) { return noErr; } err = MissedAnyParameters(event); if (err != noErr) { return noErr; } err = ChkErr(AECountItems, &fileSpecList, &count); if (err != noErr) { return noErr; } Tcl_DStringInit(&command); Tcl_DStringAppend(&command, "::tk::mac::OpenDocument", -1); for (index = 1; index <= count; index++) { err = ChkErr(AEGetNthPtr, &fileSpecList, index, typeFSRef, &keyword, &type, (Ptr) &file, sizeof(FSRef), &actual); if ( err != noErr ) { continue; } err = ChkErr(FSRefToDString, &file, &pathName); if (err == noErr) { Tcl_DStringAppendElement(&command, Tcl_DStringValue(&pathName)); Tcl_DStringFree(&pathName); } } Tcl_EvalEx(interp, Tcl_DStringValue(&command), Tcl_DStringLength(&command), TCL_EVAL_GLOBAL); Tcl_DStringFree(&command); return noErr; } /* *---------------------------------------------------------------------- * * PrintHandler -- * * This is the 'pdoc' core Apple event handler. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ OSErr PrintHandler( const AppleEvent * event, AppleEvent * reply, long handlerRefcon) { Tcl_Interp *interp = (Tcl_Interp *) handlerRefcon; AEDescList fileSpecList; FSRef file; OSStatus err; DescType type; Size actual; long count; AEKeyword keyword; long index; Tcl_DString command; Tcl_DString pathName; Tcl_CmdInfo dummy; /* * Don't bother if we don't have an interp or * the print document procedure doesn't exist. */ if ((interp == NULL) || (Tcl_GetCommandInfo(interp, "::tk::mac::PrintDocument", &dummy)) == 0) { return noErr; } /* * If we get any errors wil retrieving our parameters * we just return with no error. */ err = ChkErr(AEGetParamDesc, event, keyDirectObject, typeAEList, &fileSpecList); if (err != noErr) { return noErr; } err = ChkErr(MissedAnyParameters, event); if (err != noErr) { return noErr; } err = ChkErr(AECountItems, &fileSpecList, &count); if (err != noErr) { return noErr; } Tcl_DStringInit(&command); Tcl_DStringAppend(&command, "::tk::mac::PrintDocument", -1); for (index = 1; index <= count; index++) { err = ChkErr(AEGetNthPtr, &fileSpecList, index, typeFSRef, &keyword, &type, (Ptr) &file, sizeof(FSRef), &actual); if ( err != noErr ) { continue; } err = ChkErr(FSRefToDString, &file, &pathName); if (err == noErr) { Tcl_DStringAppendElement(&command, Tcl_DStringValue(&pathName)); Tcl_DStringFree(&pathName); } } Tcl_EvalEx(interp, Tcl_DStringValue(&command), Tcl_DStringLength(&command), TCL_EVAL_GLOBAL); Tcl_DStringFree(&command); return noErr; } /* *---------------------------------------------------------------------- * * ScriptHandler -- * * This handler process the script event. * * Results: * Schedules the given event to be processed. * * Side effects: * None. * *---------------------------------------------------------------------- */ OSErr ScriptHandler( const AppleEvent * event, AppleEvent * reply, long handlerRefcon) { OSStatus theErr; AEDescList theDesc; int tclErr = -1; Tcl_Interp *interp; char errString[128]; interp = (Tcl_Interp *) handlerRefcon; /* * The do script event receives one parameter that should be data or a file. */ theErr = AEGetParamDesc(event, keyDirectObject, typeWildCard, &theDesc); if (theErr != noErr) { sprintf(errString, "AEDoScriptHandler: GetParamDesc error %ld", theErr); theErr = AEPutParamPtr(reply, keyErrorString, typeChar, errString, strlen(errString)); } else if (MissedAnyParameters(event)) { sprintf(errString, "AEDoScriptHandler: extra parameters"); AEPutParamPtr(reply, keyErrorString, typeChar, errString, strlen(errString)); theErr = -1771; } else { if (theDesc.descriptorType == (DescType)typeChar) { Tcl_DString encodedText; short i; Size size; char * data; size = AEGetDescDataSize(&theDesc); data = (char *)ckalloc(size + 1); if ( !data ) { theErr = -1771; } else { AEGetDescData(&theDesc,data,size); data [ size ] = 0; for (i = 0; i < size; i++) if (data[i] == '\r') data[i] = '\n'; AEReplaceDescData(theDesc.descriptorType, data, size + 1, &theDesc); } Tcl_ExternalToUtfDString(NULL, data, size, &encodedText); tclErr = Tcl_EvalEx(interp, Tcl_DStringValue(&encodedText), Tcl_DStringLength(&encodedText), TCL_EVAL_GLOBAL); Tcl_DStringFree(&encodedText); } else if (theDesc.descriptorType == (DescType)typeAlias) { Boolean dummy; FSRef file; AliasPtr alias; Size theSize; theSize = AEGetDescDataSize(&theDesc); alias = (AliasPtr) ckalloc(theSize); if (alias) { AEGetDescData (&theDesc, alias, theSize); theErr = FSResolveAlias(NULL, &alias, &file, &dummy); ckfree((char*)alias); } else { theErr = memFullErr; } if (theErr == noErr) { Tcl_DString scriptName; theErr = FSRefToDString(&file, &scriptName); if (theErr == noErr) { Tcl_EvalFile(interp, Tcl_DStringValue(&scriptName)); Tcl_DStringFree(&scriptName); } } else { sprintf(errString, "AEDoScriptHandler: file not found"); AEPutParamPtr(reply, keyErrorString, typeChar, errString, strlen(errString)); } } else { sprintf(errString, "AEDoScriptHandler: invalid script type '%-4.4s', must be 'alis' or 'TEXT'", (char *)(&theDesc.descriptorType)); AEPutParamPtr(reply, keyErrorString, typeChar, errString, strlen(errString)); theErr = -1770; } } /* * If we actually go to run Tcl code - put the result in the reply. */ if (tclErr >= 0) { if (tclErr == TCL_OK) { AEPutParamPtr(reply, keyDirectObject, typeChar, Tcl_GetStringResult(interp), strlen(Tcl_GetStringResult(interp))); } else { AEPutParamPtr(reply, keyErrorString, typeChar, Tcl_GetStringResult(interp), strlen(Tcl_GetStringResult(interp))); AEPutParamPtr(reply, keyErrorNumber, typeInteger, (Ptr) &tclErr, sizeof(int)); } } AEDisposeDesc(&theDesc); return theErr; } /* *---------------------------------------------------------------------- * * ReallyKillMe -- * * This proc tries to kill the shell by running exit, * called from an event scheduled by the "Quit" AppleEvent handler. * * Results: * Runs the "exit" command which might kill the shell. * * Side effects: * None. * *---------------------------------------------------------------------- */ static int ReallyKillMe( Tcl_Event *eventPtr, int flags) { Tcl_Interp *interp = ((KillEvent *) eventPtr)->interp; Tcl_CmdInfo dummy; if (Tcl_GetCommandInfo(interp, "::tk::mac::Quit", &dummy)) { Tcl_GlobalEval(interp, "::tk::mac::Quit"); } else { Tcl_GlobalEval(interp, "exit"); } return 1; } /* *---------------------------------------------------------------------- * * MissedAnyParameters -- * * Checks to see if parameters are still left in the event. * * Results: * True or false. * * Side effects: * None. * *---------------------------------------------------------------------- */ int MissedAnyParameters( const AppleEvent *theEvent) { DescType returnedType; Size actualSize; OSStatus err; err = ChkErr(AEGetAttributePtr, theEvent, keyMissedKeywordAttr, typeWildCard, &returnedType, NULL, 0, &actualSize); return (err != errAEDescNotFound); } /* *---------------------------------------------------------------------- * * FSRefToDString -- * * Get a POSIX path from an FSRef. * * Results: * In the parameter ds. * * Side effects: * None. * *---------------------------------------------------------------------- */ OSStatus FSRefToDString( const FSRef *fsref, Tcl_DString *ds) { UInt8 fileName[PATH_MAX+1]; OSStatus err; err = ChkErr(FSRefMakePath, fsref, fileName, sizeof(fileName)); if (err == noErr) { Tcl_ExternalToUtfDString(NULL, (char*) fileName, -1, ds); } return err; }