ITAppleEventCenter.m

   1 #import "ITAppleEventCenter.h"
   2
   3 Boolean MyAEIdleCallback (
   4                                          EventRecord * theEvent,
   5                                          SInt32 * sleepTime,
   6                                          RgnHandle * mouseRgn
   7                                          );
   8
   9 Boolean MyAEIdleCallback (
  10                                          EventRecord * theEvent,
  11                                          SInt32 * sleepTime,
  12                                          RgnHandle * mouseRgn
  13                                          )
  14 {
  15     return FALSE;
  16 }
  17
  18 @implementation ITAppleEventCenter
  19
  20 static ITAppleEventCenter *_sharedAECenter = nil;
  21
  22 + (id)sharedCenter
  23 {
  24     if( _sharedAECenter != nil ) {
  25         return _sharedAECenter;
  26     } else {
  27         _sharedAECenter = [[ITAppleEventCenter alloc] init];
  28         return _sharedAECenter;
  29     }
  30 }
  31
  32 - (NSString*)sendAEWithRequestedKey:(NSString*)key eventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn
  33 {
  34     if ( (!key) || (!eventClass) || (!eventID) || (!psn) ) {
  35         return @"";
  36     } else {
  37     AEEventClass eClass = *((unsigned long*)[eventClass UTF8String]);
  38     AEEventID    eID    = *((unsigned long*)[eventID UTF8String]);
  39
  40     const char *sendString = [[NSString stringWithFormat:@"'----':obj { form:'prop', want:type('prop'), seld:type('%s'), from:'null'() }", [key UTF8String]] UTF8String];
  41     NSString  *_finalString;
  42
  43     AppleEvent sendEvent, replyEvent;
  44     AEIdleUPP upp = NewAEIdleUPP(&MyAEIdleCallback);
  45
  46     char *charResult;
  47     DescType resultType;
  48     Size resultSize, charResultSize;
  49     int pid;
  50
  51     AEBuildError buildError;
  52     OSStatus err;
  53     OSErr err2, err3;
  54
  55     if (GetProcessPID(&psn, &pid) == noErr) {
  56         if (pid ==0) {
  57             NSLog(@"Process doesn't exist! Exiting.");
  58             return;
  59         }
  60     } else {
  61         NSLog(@"Error getting PID of application to send to! Exiting.");
  62         return;
  63     }
  64
  65     NSLog(@"_sendString: %s", sendString);
  66
  67     err = AEBuildAppleEvent(eClass, eID, typeProcessSerialNumber,(ProcessSerialNumber*)&psn, sizeof(ProcessSerialNumber), kAutoGenerateReturnID, 0, &sendEvent, &buildError, sendString);
  68
  69     [self printCarbonDesc:&sendEvent];
  70
  71     if (err) {
  72         NSLog(@"%d:%d at \"%@\"",buildError.fError,buildError.fErrorPos,[sendString substringToIndex:buildError.fErrorPos]);
  73     }
  74
  75     err = AESend(&sendEvent, &replyEvent, kAEWaitReply, kAENormalPriority, kNoTimeOut, upp, NULL);
  76
  77     [self printCarbonDesc:&replyEvent];
  78
  79     if (err) {
  80         NSLog(@"Send Error: %i",err);
  81     } else {
  82
  83         unichar* result=0;
  84
  85         err2 = AESizeOfParam(&replyEvent, keyDirectObject, &resultType, &resultSize);
  86         result=malloc(resultSize);
  87
  88         if (err2) { NSLog(@"Error After AESizeOfParam: %i", err2); } else {
  89
  90         err3 = AEGetParamPtr(&replyEvent, keyDirectObject, resultType, NULL, result, resultSize, &charResultSize);
  91
  92         if (err3) { NSLog(@"Error After AEGetParamPtr: %i", err3); } else {
  93
  94         _finalString = [[NSString stringWithCharacters:result length:charResultSize/sizeof(unichar)] copy];
  95
  96         }
  97         }
  98     }
  99
 100     AEDisposeDesc(&sendEvent);
 101     AEDisposeDesc(&replyEvent);
 102
 103     return _finalString;
 104     }
 105 }
 106
 107 - (void)sendAEWithEventClass:(NSString*)eventClass eventID:(NSString*)eventID appPSN:(ProcessSerialNumber)psn
 108 {
 109     if ( (!eventClass) || (!eventID) || (!psn) ) {
 110         return;
 111     } else {
 112         AEEventClass eClass = *((unsigned long*)[eventClass UTF8String]);
 113         AEEventID    eID    = *((unsigned long*)[eventID UTF8String]);
 114         AppleEvent event, reply;
 115
 116         AEBuildAppleEvent(eClass, eID, typeProcessSerialNumber,(ProcessSerialNumber*)&psn, sizeof(ProcessSerialNumber), kAutoGenerateReturnID, kAnyTransactionID, &event, nil, "");
 117
 118         AESend(&event, &reply, kAENoReply, kAENormalPriority, kAEDefaultTimeout, nil, nil);
 119
 120         AEDisposeDesc(&event);
 121         AEDisposeDesc(&reply);
 122     }
 123 }
 124
 125 - (void)printCarbonDesc:(AEDesc*)desc {
 126     Handle xx;
 127     AEPrintDescToHandle(desc,&xx);
 128     NSLog(@"Handle: %s", *xx);
 129     DisposeHandle(xx);
 130 }
 131
 132 @end