Initial revision

1 files changed, 437 insertions, 0 deletions

diff --git a/mac/tkMacHLEvents.c b/mac/tkMacHLEvents.c
new file mode 100644
index 0000000..39f7836
--- /dev/null
+++ b/mac/tkMacHLEvents.c
@@ -0,0 +1,437 @@
+/* 
+ * tkMacHLEvents.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.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * SCCS: @(#) tkMacHLEvents.c 1.21 97/09/17 17:19:00
+ */
+
+#include "tcl.h"
+#include "tclMacInt.h"
+#include "tkMacInt.h"
+
+#include <Aliases.h>
+#include <AppleEvents.h>
+#include <SegLoad.h>
+#include <ToolUtils.h>
+
+/*
+ * This is a Tcl_Event structure that the Quit AppleEvent handler
+ * uses to schedule the tkReallyKillMe 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 pascal OSErr QuitHandler _ANSI_ARGS_((AppleEvent* event,
+	AppleEvent* reply, long refcon));
+static pascal OSErr OappHandler _ANSI_ARGS_((AppleEvent* event,
+	AppleEvent* reply, long refcon));
+static pascal OSErr OdocHandler _ANSI_ARGS_((AppleEvent* event,
+	AppleEvent* reply, long refcon));
+static pascal OSErr PrintHandler _ANSI_ARGS_((AppleEvent* event,
+	AppleEvent* reply, long refcon));
+static pascal OSErr ScriptHandler _ANSI_ARGS_((AppleEvent* event,
+	AppleEvent* reply, long refcon));
+static int MissedAnyParameters _ANSI_ARGS_((AppleEvent *theEvent));
+static int ReallyKillMe _ANSI_ARGS_((Tcl_Event *eventPtr, int flags));
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkMacInitAppleEvents --
+ *
+ *	Initilize the Apple Events on the Macintosh.  This registers the
+ *	core event handlers.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void 
+TkMacInitAppleEvents(
+    Tcl_Interp *interp)		/* Interp to handle basic events. */
+{
+    OSErr err;
+    AEEventHandlerUPP	OappHandlerUPP, OdocHandlerUPP,
+	PrintHandlerUPP, QuitHandlerUPP, ScriptHandlerUPP;
+	
+    /*
+     * Install event handlers for the core apple events.
+     */
+    QuitHandlerUPP = NewAEEventHandlerProc(QuitHandler);
+    err = AEInstallEventHandler(kCoreEventClass, kAEQuitApplication,
+	    QuitHandlerUPP, (long) interp, false);
+
+    OappHandlerUPP = NewAEEventHandlerProc(OappHandler);
+    err = AEInstallEventHandler(kCoreEventClass, kAEOpenApplication,
+	    OappHandlerUPP, (long) interp, false);
+
+    OdocHandlerUPP = NewAEEventHandlerProc(OdocHandler);
+    err = AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
+	    OdocHandlerUPP, (long) interp, false);
+
+    PrintHandlerUPP = NewAEEventHandlerProc(PrintHandler);
+    err = AEInstallEventHandler(kCoreEventClass, kAEPrintDocuments,
+	    PrintHandlerUPP, (long) interp, false);
+
+    if (interp != NULL) {
+	ScriptHandlerUPP = NewAEEventHandlerProc(ScriptHandler);
+	err = AEInstallEventHandler('misc', 'dosc',
+	    ScriptHandlerUPP, (long) interp, false);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkMacDoHLEvent --
+ *
+ *	Dispatch incomming highlevel events.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Depends on the incoming event.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkMacDoHLEvent(
+    EventRecord *theEvent)
+{
+    AEProcessAppleEvent(theEvent);
+
+    return;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * QuitHandler, OappHandler, etc. --
+ *
+ *	These are the core Apple event handlers.  Only the Quit event does
+ *	anything interesting.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static pascal OSErr
+QuitHandler(
+    AppleEvent *theAppleEvent,
+    AppleEvent *reply,
+    long handlerRefcon)
+{
+    Tcl_Interp 	*interp = (Tcl_Interp *) handlerRefcon;
+    KillEvent *eventPtr;
+    
+    /*
+     * 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;
+}
+
+static pascal OSErr
+OappHandler(
+    AppleEvent *theAppleEvent,
+    AppleEvent *reply,
+    long handlerRefcon)
+{
+    return noErr;
+}
+
+static pascal OSErr
+OdocHandler(
+    AppleEvent *theAppleEvent,
+    AppleEvent *reply,
+    long handlerRefcon)
+{
+    Tcl_Interp 	*interp = (Tcl_Interp *) handlerRefcon;
+    AEDescList fileSpecList;
+    FSSpec file;
+    OSErr 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, "tkOpenDocument", &dummy)) == 0) {
+    	return noErr;
+    }
+    
+    /*
+     * If we get any errors wil retrieving our parameters
+     * we just return with no error.
+     */
+
+    err = AEGetParamDesc(theAppleEvent, keyDirectObject,
+	    typeAEList, &fileSpecList);
+    if (err != noErr) {
+	return noErr;
+    }
+
+    err = MissedAnyParameters(theAppleEvent);
+    if (err != noErr) {
+	return noErr;
+    }
+
+    err = AECountItems(&fileSpecList, &count);
+    if (err != noErr) {
+	return noErr;
+    }
+
+    Tcl_DStringInit(&command);
+    Tcl_DStringInit(&pathName);
+    Tcl_DStringAppend(&command, "tkOpenDocument", -1);
+    for (index = 1; index <= count; index++) {
+	int length;
+	Handle fullPath;
+	
+	Tcl_DStringSetLength(&pathName, 0);
+	err = AEGetNthPtr(&fileSpecList, index, typeFSS,
+		&keyword, &type, (Ptr) &file, sizeof(FSSpec), &actual);
+	if ( err != noErr ) {
+	    continue;
+	}
+
+	err = FSpPathFromLocation(&file, &length, &fullPath);
+	HLock(fullPath);
+	Tcl_DStringAppend(&pathName, *fullPath, length);
+	HUnlock(fullPath);
+	DisposeHandle(fullPath);
+
+	Tcl_DStringAppendElement(&command, pathName.string);
+    }
+    
+    Tcl_GlobalEval(interp, command.string);
+
+    Tcl_DStringFree(&command);
+    Tcl_DStringFree(&pathName);
+    return noErr;
+}
+
+static pascal OSErr
+PrintHandler(
+    AppleEvent *theAppleEvent,
+    AppleEvent *reply,
+    long handlerRefcon)
+{
+    return noErr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DoScriptHandler --
+ *
+ *	This handler process the do script event.  
+ *
+ * Results:
+ *	Scedules the given event to be processed.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+ 
+static pascal OSErr 
+ScriptHandler(
+    AppleEvent *theAppleEvent,
+    AppleEvent *reply,
+    long handlerRefcon)
+{
+    OSErr 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(theAppleEvent, keyDirectObject, typeWildCard,
+	    &theDesc);
+    if (theErr != noErr) {
+	sprintf(errString, "AEDoScriptHandler: GetParamDesc error %d", theErr);
+	theErr = AEPutParamPtr(reply, keyErrorString, typeChar, errString,
+		strlen(errString));
+    } else if (MissedAnyParameters(theAppleEvent)) {
+	sprintf(errString, "AEDoScriptHandler: extra parameters");
+	AEPutParamPtr(reply, keyErrorString, typeChar, errString,
+		strlen(errString));
+	theErr = -1771;
+    } else {
+	if (theDesc.descriptorType == (DescType)'TEXT') {
+	    short length, i;
+	    
+	    length = GetHandleSize(theDesc.dataHandle);
+	    SetHandleSize(theDesc.dataHandle, length + 1);
+	    *(*theDesc.dataHandle + length) = '\0';
+	    for (i=0; i<length; i++) {
+		if ((*theDesc.dataHandle)[i] == '\r') {
+		    (*theDesc.dataHandle)[i] = '\n';
+		}
+	    }
+
+	    HLock(theDesc.dataHandle);
+	    tclErr = Tcl_GlobalEval(interp, *theDesc.dataHandle);
+	    HUnlock(theDesc.dataHandle);
+	} else if (theDesc.descriptorType == (DescType)'alis') {
+	    Boolean dummy;
+	    FSSpec theFSS;
+	    Handle fullPath;
+	    int length;
+	    
+	    theErr = ResolveAlias(NULL, (AliasHandle)theDesc.dataHandle,
+		    &theFSS, &dummy);
+	    if (theErr == noErr) {
+		FSpPathFromLocation(&theFSS, &length, &fullPath);
+		HLock(fullPath);
+		Tcl_EvalFile(interp, *fullPath);
+		HUnlock(fullPath);
+		DisposeHandle(fullPath);
+	    } 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'",
+		    &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,
+		interp->result, strlen(interp->result));
+	} else {
+	    AEPutParamPtr(reply, keyErrorString, typeChar,
+		interp->result, strlen(interp->result));
+	    AEPutParamPtr(reply, keyErrorNumber, typeInteger,
+		(Ptr) &tclErr, sizeof(int));
+	}
+    }
+	
+    AEDisposeDesc(&theDesc);
+
+    return theErr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ReallyKillMe --
+ *
+ *	This proc tries to kill the shell by running exit, and if that 
+ *      has not succeeded (e.g. because someone has renamed the exit 
+ *      command), calls Tcl_Exit to really kill the shell.  Called from 
+ *      an event scheduled by the "Quit" AppleEvent handler.
+ *
+ * Results:
+ *	Kills the shell.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int 
+ReallyKillMe(Tcl_Event *eventPtr, int flags) 
+{
+    Tcl_Interp *interp = ((KillEvent *) eventPtr)->interp;
+    if (interp != NULL) {
+        Tcl_GlobalEval(interp, "exit");
+    }
+    Tcl_Exit(0);
+    
+    return 1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * MissedAnyParameters --
+ *
+ *	Checks to see if parameters are still left in the event.  
+ *
+ * Results:
+ *	True or false.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+ 
+static int 
+MissedAnyParameters(
+    AppleEvent *theEvent)
+{
+   DescType returnedType;
+   Size actualSize;
+   OSErr err;
+
+   err = AEGetAttributePtr(theEvent, keyMissedKeywordAttr, typeWildCard, 
+   		&returnedType, NULL, 0, &actualSize);
+   
+   return (err != errAEDescNotFound);
+}