iTunesRemote.m

   1 #import "iTunesRemote.h"
   2
   3 @implementation iTunesRemote
   4
   5 + (id)remote
   6 {
   7     return [[[iTunesRemote alloc] init] autorelease];
   8 }
   9
  10 - (NSString *)title
  11 {
  12     return @"iTunes Plug-in";
  13 }
  14
  15 - (NSString *)information;
  16 {
  17     return @"Default MenuTunes plugin to control iTunes. Written by iThink Software.";
  18 }
  19
  20 - (NSImage *)icon
  21 {
  22     return nil;
  23 }
  24
  25 - (BOOL)begin
  26 {
  27     iTunesPSN = [self iTunesPSN];
  28
  29     //Register for application termination in NSWorkspace
  30     [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(applicationLaunched:) name:NSWorkspaceDidLaunchApplicationNotification object:nil];
  31     [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(applicationTerminated:) name:NSWorkspaceDidTerminateApplicationNotification object:nil];
  32
  33     return YES;
  34 }
  35
  36 - (BOOL)halt
  37 {
  38     iTunesPSN.highLongOfPSN = kNoProcess;
  39
  40     //Unregister for application termination in NSWorkspace
  41     [[[NSWorkspace sharedWorkspace] notificationCenter] removeObserver:self];
  42
  43     return YES;
  44 }
  45
  46 - (BOOL)isAppRunning
  47 {
  48     NSArray *apps = [[NSWorkspace sharedWorkspace] launchedApplications];
  49     int i,count = [apps count];
  50
  51     for (i = 0; i < count; i++) {
  52         if ([[[apps objectAtIndex:i] objectForKey:@"NSApplicationName"]
  53                 isEqualToString:@"iTunes"]) {
  54             return YES;
  55         }
  56     }
  57     return NO;
  58 }
  59
  60 - (PlayerState)playerState
  61 {
  62     long result = [[ITAppleEventCenter sharedCenter] sendAEWithSendStringForNumber:@"'----':obj { form:'prop', want:type('prop'), seld:type('pPlS'), from:'null'() }" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
  63
  64     switch (result)
  65     {
  66         default:
  67         case 'kPSS':
  68             return stopped;
  69         case 'kPSP':
  70             return playing;
  71         case 'kPSp':
  72             return paused;
  73         case 'kPSR':
  74             return rewinding;
  75         case 'kPSF':
  76             return forwarding;
  77     }
  78
  79     return stopped;
  80 }
  81
  82 - (NSArray *)playlists
  83 {
  84     long i = 0;
  85     const signed long numPlaylists = [[ITAppleEventCenter sharedCenter] sendAEWithSendStringForNumber:@"kocl:type('cPly'), '----':(), &subj:()" eventClass:@"core" eventID:@"cnte" appPSN:iTunesPSN];
  86     NSMutableArray *playlists = [[NSMutableArray alloc] initWithCapacity:numPlaylists];
  87
  88     for (i = 1; i <= numPlaylists; i++) {
  89         const long j = i;
  90         NSString *sendStr = [NSString stringWithFormat:@"'----':obj { form:'prop', want:type('prop'), seld:type('pnam'), from:obj { form:'indx', want:type('cPly'), seld:long(%lu), from:'null'() } }",(unsigned long)j];
  91         NSString *theObj = [[ITAppleEventCenter sharedCenter] sendAEWithSendString:sendStr eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN fixForAECrappiness:i];
  92         [playlists addObject:theObj];
  93     }
  94     return [playlists autorelease];
  95 }
  96
  97 - (int)numberOfSongsInPlaylistAtIndex:(int)index
  98 {
  99     return [[ITAppleEventCenter sharedCenter] sendAEWithSendStringForNumber:[NSString stringWithFormat:@"kocl:type('cTrk'), '----':obj { form:'indx', want:type('cPly'), seld:long(%lu), from:'null'() }",index] eventClass:@"core" eventID:@"cnte" appPSN:iTunesPSN]
 100
 101 ;
 102 }
 103
 104 - (NSString *)classOfPlaylistAtIndex:(int)index
 105 {
 106     int realResult = [[ITAppleEventCenter sharedCenter]
 107                 sendTwoTierAEWithRequestedKeyForNumber:@"pcls" fromObjectByKey:@"pPla" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 108
 109     if (realResult == 'cRTP') return @"radio tuner playlist";
 110     else return @"playlist";
 111 }
 112
 113 - (int)currentPlaylistIndex
 114 {
 115     int result;
 116     result = [[ITAppleEventCenter sharedCenter]
 117                 sendTwoTierAEWithRequestedKeyForNumber:@"pidx" fromObjectByKey:@"pPla" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 118     return result;
 119 }
 120
 121 - (NSString *)songTitleAtIndex:(int)index
 122 {
 123     return [[ITAppleEventCenter sharedCenter] sendAEWithSendString:[NSString stringWithFormat:@"'----':obj { form:'prop', want:type('prop'), seld:type('pnam'), from:obj { form:'indx', want:type('cTrk'), seld:long(%lu), from:obj { form:'prop', want:type('prop'), seld:type('pPla'), from:'null'() } } }",index] eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 124 }
 125
 126 - (int)currentSongIndex
 127 {
 128     int result;
 129     result = [[ITAppleEventCenter sharedCenter] sendTwoTierAEWithRequestedKeyForNumber:@"pidx" fromObjectByKey:@"pTrk" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 130     return result;
 131 }
 132
 133 - (NSString *)currentSongTitle
 134 {
 135     return [[ITAppleEventCenter sharedCenter] sendTwoTierAEWithRequestedKey:@"pnam" fromObjectByKey:@"pTrk" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 136 }
 137
 138 - (NSString *)currentSongArtist
 139 {
 140     return [[ITAppleEventCenter sharedCenter] sendTwoTierAEWithRequestedKey:@"pArt" fromObjectByKey:@"pTrk" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 141 }
 142
 143 - (NSString *)currentSongAlbum
 144 {
 145     return [[ITAppleEventCenter sharedCenter] sendTwoTierAEWithRequestedKey:@"pAlb" fromObjectByKey:@"pTrk" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 146 }
 147
 148 - (NSString *)currentSongGenre
 149 {
 150     return [[ITAppleEventCenter sharedCenter] sendTwoTierAEWithRequestedKey:@"pGen" fromObjectByKey:@"pTrk" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 151 }
 152
 153 - (NSString *)currentSongLength
 154 {
 155     return [[ITAppleEventCenter sharedCenter] sendTwoTierAEWithRequestedKey:@"pTim" fromObjectByKey:@"pTrk" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 156 }
 157
 158 - (NSString *)currentSongRemaining
 159 {
 160     long duration = [[ITAppleEventCenter sharedCenter]
 161                         sendTwoTierAEWithRequestedKeyForNumber:@"pDur" fromObjectByKey:@"pTrk" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 162     long current = [[ITAppleEventCenter sharedCenter]
 163                         sendAEWithRequestedKeyForNumber:@"pPos" eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN];
 164
 165     return [[NSNumber numberWithLong:duration - current] stringValue];
 166 }
 167
 168 - (NSArray *)eqPresets;
 169 {
 170     int i;
 171     long numPresets = [[ITAppleEventCenter sharedCenter] sendAEWithSendStringForNumber:@"kocl:type('cEQP'), '----':(), &subj:()" eventClass:@"core" eventID:@"cnte" appPSN:iTunesPSN];
 172     NSMutableArray *presets = [[NSMutableArray alloc] initWithCapacity:numPresets];
 173
 174     for (i = 1; i <= numPresets; i++) {
 175         NSString *theObj = [[ITAppleEventCenter sharedCenter] sendAEWithSendString:[NSString stringWithFormat:@"'----':obj { form:'prop', want:type('prop'), seld:type('pnam'), from:obj { form:'indx', want:type('cEQP'), seld:long(%lu), from:'null'() } }",i] eventClass:@"core" eventID:@"getd" appPSN:iTunesPSN fixForAECrappiness:i];
 176         if (theObj) {
 177             [presets addObject:theObj];
 178         }
 179     }
 180     return [presets autorelease];
 181 }
 182
 183 - (int)currentEQPresetIndex
 184 {
 185     int result;
 186     result = [[ITAppleEventCenter sharedCenter]
 187                 sendTwoTierAEWithRequestedKeyForNumber:@"pidx"fromObjectByKey:@"pEQP" eventClass:@"core" eventID:@"getd"appPSN:iTunesPSN];
 188     return result;
 189 }
 190
 191 - (BOOL)play
 192 {
 193     [[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Play" appPSN:iTunesPSN];
 194     return YES;
 195 }
 196
 197 - (BOOL)pause
 198 {
 199     [[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Paus" appPSN:iTunesPSN];
 200     return YES;
 201 }
 202
 203 - (BOOL)goToNextSong
 204 {
 205     [[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Next" appPSN:iTunesPSN];
 206     return YES;
 207 }
 208
 209 - (BOOL)goToPreviousSong
 210 {
 211     [[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Prev" appPSN:iTunesPSN];
 212     return YES;
 213 }
 214
 215 - (BOOL)fastForward
 216 {
 217     [[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Fast" appPSN:iTunesPSN];
 218     return YES;
 219 }
 220
 221 - (BOOL)rewind
 222 {
 223     [[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Rwnd" appPSN:iTunesPSN];
 224     return YES;
 225 }
 226
 227
 228 - (BOOL)switchToPlaylistAtIndex:(int)index
 229 {
 230     [[ITAppleEventCenter sharedCenter] sendAEWithSendString:[NSString stringWithFormat:@"'----':obj { form:'name', want:type('cPly'), seld:long(%lu), from:'null'() }",index] eventClass:@"hook" eventID:@"Play" appPSN:iTunesPSN];
 231     return NO;
 232 }
 233
 234 - (BOOL)switchToSongAtIndex:(int)index
 235 {
 236     [[ITAppleEventCenter sharedCenter] sendAEWithSendString:[NSString stringWithFormat:@"'----':obj { form:'indx', want:type('cTrk'), seld:long(%lu), from:obj { form:'prop', want:type('prop'), seld:type('pPla'), from:'null'() } }",index] eventClass:@"hook" eventID:@"Play" appPSN:iTunesPSN];
 237     return NO;
 238 }
 239
 240 - (BOOL)switchToEQAtIndex:(int)index
 241 {
 242     [[ITAppleEventCenter sharedCenter] sendAEWithSendString:[NSString stringWithFormat:@"data:obj { form:'name', want:type('cEQP'), seld:long(%lu), from:'null'() }, '----':obj { form:'prop', want:type('prop'), seld:type('pEQP'), from:'null'() }",index] eventClass:@"core" eventID:@"setd" appPSN:iTunesPSN];
 243     [[ITAppleEventCenter sharedCenter] sendAEWithSendString:@"data:1, '----':obj { form:'prop', want:type('prop'), seld:type('pEQ '), from:'null'() }" eventClass:@"core" eventID:@"setd" appPSN:iTunesPSN];
 244     return NO;
 245 }
 246
 247 - (ProcessSerialNumber)iTunesPSN
 248 {
 249     NSArray *apps = [[NSWorkspace sharedWorkspace] launchedApplications];
 250     ProcessSerialNumber number;
 251     int i, count = [apps count];
 252
 253     number.highLongOfPSN = kNoProcess;
 254
 255     for (i = 0; i < count; i++)
 256     {
 257         NSDictionary *curApp = [apps objectAtIndex:i];
 258
 259         if ([[curApp objectForKey:@"NSApplicationName"] isEqualToString:@"iTunes"])
 260         {
 261             number.highLongOfPSN = [[curApp objectForKey:
 262                 @"NSApplicationProcessSerialNumberHigh"] intValue];
 263             number.lowLongOfPSN = [[curApp objectForKey:
 264                 @"NSApplicationProcessSerialNumberLow"] intValue];
 265         }
 266     }
 267     return number;
 268 }
 269
 270 - (void)applicationLaunched:(NSNotification *)note
 271 {
 272     NSDictionary *info = [note userInfo];
 273
 274     if ([[info objectForKey:@"NSApplicationName"] isEqualToString:@"iTunes"]) {
 275         iTunesPSN.highLongOfPSN = [[info objectForKey:@"NSApplicationProcessSerialNumberHigh"] longValue];
 276         iTunesPSN.lowLongOfPSN = [[info objectForKey:@"NSApplicationProcessSerialNumberLow"] longValue];
 277
 278         [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTRemoteAppDidLaunchNotification" object:nil];
 279     }
 280 }
 281
 282 - (void)applicationTerminated:(NSNotification *)note
 283 {
 284     NSDictionary *info = [note userInfo];
 285
 286     if ([[info objectForKey:@"NSApplicationName"] isEqualToString:@"iTunes"]) {
 287         iTunesPSN.highLongOfPSN = kNoProcess;
 288         [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTRemoteAppDidTerminateNotification" object:nil];
 289     }
 290 }
 291
 292 @end