From a2d7aa6fbb5dff14ba6f57d24c2093f331a830c4 Mon Sep 17 00:00:00 2001
From: Joseph Spiros <joseph.spiros@ithinksw.com>
Date: Wed, 5 Feb 2003 21:41:49 +0000
Subject: [PATCH] Two Tier AE Sending method added.

---
 ITAppleEventCenter.h |  1 +
 ITAppleEventCenter.m | 76 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 77 insertions(+)

diff --git a/ITAppleEventCenter.h b/ITAppleEventCenter.h
index ed08e48..d07de87 100755
--- a/ITAppleEventCenter.h
+++ b/ITAppleEventCenter.h
@@ -22,6 +22,7 @@
 }
 + (id)sharedCenter;
 - (NSString*)sendAEWithRequestedKey:(NSString*)key eventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn;
+- (NSString*)sendTwoTierAEWithRequestedKey:(NSString*)key fromObjectByKey:(NSString*)object eventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn;
 - (void)sendAEWithEventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn;
 - (void)printCarbonDesc:(AEDesc*)desc;
 @end
diff --git a/ITAppleEventCenter.m b/ITAppleEventCenter.m
index b57f529..3a227cf 100755
--- a/ITAppleEventCenter.m
+++ b/ITAppleEventCenter.m
@@ -104,6 +104,82 @@ static ITAppleEventCenter *_sharedAECenter = nil;
     }
 }
 
+- (NSString*)sendTwoTierAEWithRequestedKey:(NSString*)key fromObjectByKey:(NSString*)object eventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn
+{
+    if ( (!key) || (!eventClass) || (!eventID) || (psn.highLongOfPSN == kNoProcess) ) {
+        return @"";
+    } else {
+    AEEventClass eClass = *((unsigned long*)[eventClass UTF8String]);
+    AEEventID    eID    = *((unsigned long*)[eventID UTF8String]);
+    
+    const char *sendString = [[NSString stringWithFormat:@"'----':obj { form:'prop', want:type('prop'), seld:type('%s'), from:obj { form:'prop', want:type('prop'), seld:type('%s'), from:'null'() } }", [key UTF8String], [object UTF8String]] UTF8String];
+    NSString  *_finalString;
+    
+    AppleEvent sendEvent, replyEvent;
+    AEIdleUPP upp = NewAEIdleUPP(&MyAEIdleCallback);
+    
+    char *charResult;
+    DescType resultType;
+    Size resultSize, charResultSize;
+    int pid;
+    
+    AEBuildError buildError;
+    OSStatus err;
+    OSErr err2, err3;
+    
+    if (GetProcessPID(&psn, &pid) == noErr) {
+        if (pid ==0) {
+            NSLog(@"Process doesn't exist! Exiting.");
+            return nil;
+        }
+    } else {
+        NSLog(@"Error getting PID of application to send to! Exiting.");
+        return nil;
+    }
+    
+    NSLog(@"_sendString: %s", sendString);
+    
+    err = AEBuildAppleEvent(eClass, eID, typeProcessSerialNumber,(ProcessSerialNumber*)&psn, sizeof(ProcessSerialNumber), kAutoGenerateReturnID, 0, &sendEvent, &buildError, sendString);
+    
+    [self printCarbonDesc:&sendEvent];
+    
+    if (err) {
+        NSLog(@"%d:%d at \"%@\"",buildError.fError,buildError.fErrorPos,[sendString substringToIndex:buildError.fErrorPos]);
+    }
+    
+    err = AESend(&sendEvent, &replyEvent, kAEWaitReply, kAENormalPriority, kNoTimeOut, upp, NULL);
+    
+    [self printCarbonDesc:&replyEvent];
+    
+    if (err) {
+        NSLog(@"Send Error: %i",err);
+    } else {
+
+        unichar* result=0;
+        
+        err2 = AESizeOfParam(&replyEvent, keyDirectObject, &resultType, &resultSize);
+        result=malloc(resultSize);
+        
+        if (err2) { NSLog(@"Error After AESizeOfParam: %i", err2); } else {
+        
+        err3 = AEGetParamPtr(&replyEvent, keyDirectObject, resultType, NULL, result, resultSize, &charResultSize);
+        
+        if (err3) { NSLog(@"Error After AEGetParamPtr: %i", err3); } else {
+        
+        _finalString = [[NSString stringWithCharacters:result length:charResultSize/sizeof(unichar)] copy];
+        
+        }
+        }
+    }
+    
+    AEDisposeDesc(&sendEvent);
+    AEDisposeDesc(&replyEvent);
+    
+    return _finalString;
+    }
+}
+
+
 - (void)sendAEWithEventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn
 {
     if ( (!eventClass) || (!eventID) || (psn.highLongOfPSN == kNoProcess) ) {
-- 
2.20.1