Added fast forward and rewind. Player state. More key equivalents.

[MenuTunes.git] / iTunesRemote.m

diff --git a/iTunesRemote.m b/iTunesRemote.m
index 5978135..8745044 100755 (executable)
--- a/iTunesRemote.m
+++ b/iTunesRemote.m
@@ -25,6 +25,7 @@
 - (BOOL)begin
 {
     iTunesPSN = [self iTunesPSN];
+    asComponent = OpenDefaultComponent(kOSAComponentType, kAppleScriptSubtype);
     
     //Register for application termination in NSWorkspace
     
@@ -35,27 +36,59 @@
 - (BOOL)halt
 {
     iTunesPSN.highLongOfPSN = kNoProcess;
+    CloseComponent(asComponent);
     
     //Unregister for application termination in NSWorkspace
     return YES;
 }
 
+- (PlayerState)playerState
+{
+    NSString *result = [self runScriptAndReturnResult:@"get player state"];
+    
+    if ([result isEqualToString:@"playing"]) {
+        return playing;
+    } else if ([result isEqualToString:@"paused"]) {
+        return paused;
+    } else if ([result isEqualToString:@"stopped"]) {
+        return stopped;
+    } else if ([result isEqualToString:@"rewinding"]) {
+        return rewinding;
+    } else if ([result isEqualToString:@"fast forwarding"]) {
+        return forwarding;
+    }
+    
+    return stopped;
+}
+
+- (NSArray *)playlists
+{
+    int i;
+    int numPresets = [[self runScriptAndReturnResult:@"get number of playlists"] intValue];
+    NSMutableArray *presets = [[NSMutableArray alloc] init];
+    
+    for (i = 0; i < numPresets; i++) {
+        [presets addObject:[self runScriptAndReturnResult:[NSString stringWithFormat:@"get name of playlist %i", i]]];
+    }
+    
+    return [NSArray arrayWithArray:presets];
+}
+
 - (int)numberOfSongsInPlaylistAtIndex:(int)index
 {
-    return [[ITAppleEventCenter sharedCenter]
-                    sendAEWithSendStringForNumber:@"cPla"
-                    eventClass:@"core" eventID:@"cnte"
-                    appPSN:[self iTunesPSN]];
+    NSString *result = [self runScriptAndReturnResult:[NSString stringWithFormat:@"get number of tracks in playlist %i", index]];
+    return [result intValue];
 }
 
 - (NSString *)classOfPlaylistAtIndex:(int)index
 {
     //Not working yet. It returns the 4 character code instead of a name.
-    NSString *result;
+    /*NSString *result;
     result = [[ITAppleEventCenter sharedCenter]
                 sendTwoTierAEWithRequestedKey:@"pcls"
                 fromObjectByKey:@"pPla" eventClass:@"core" eventID:@"getd"
-                appPSN:[self iTunesPSN]];
+                appPSN:[self iTunesPSN]];*/
+    NSString *result = [self runScriptAndReturnResult:[NSString stringWithFormat:@"get class of playlist %i", index]];
     return result;
 }
 
@@ -71,7 +104,8 @@
 
 - (NSString *)songTitleAtIndex:(int)index
 {
-    return nil; 
+    NSString *result = [self runScriptAndReturnResult:[NSString stringWithFormat:@"get name of track %i of current playlist", index]];
+    return result;
 }
 
 - (int)currentSongIndex
@@ -114,7 +148,7 @@
 
 - (NSString *)currentSongLength
 {
-    return [[ITAppleEventCenter sharedCenter] sendTwoTierAEWithRequestedKey:@"pDur"
+    return [[ITAppleEventCenter sharedCenter] sendTwoTierAEWithRequestedKey:@"pTim"
                 fromObjectByKey:@"pTrk" eventClass:@"core" eventID:@"getd"
                 appPSN:[self iTunesPSN]];
 }
@@ -135,7 +169,25 @@
 
 - (NSArray *)eqPresets;
 {
-    return nil;
+    int i;
+    int numPresets = [[self runScriptAndReturnResult:@"get number of EQ presets"] intValue];
+    NSMutableArray *presets = [[NSMutableArray alloc] init];
+    
+    for (i = 0; i < numPresets; i++) {
+        [presets addObject:[self runScriptAndReturnResult:[NSString stringWithFormat:@"get name of EQ preset %i", i]]];
+    }
+    
+    return [NSArray arrayWithArray:presets];
+}
+
+- (int)currentEQPresetIndex
+{
+    int result;
+    result = [[ITAppleEventCenter sharedCenter]
+                sendTwoTierAEWithRequestedKeyForNumber:@"pidx"
+                fromObjectByKey:@"pEQP" eventClass:@"core" eventID:@"getd"
+                appPSN:[self iTunesPSN]];
+    return result;
 }
 
 - (BOOL)play
@@ -154,9 +206,8 @@
 
 - (BOOL)goToNextSong
 {
-    [self numberOfSongsInPlaylistAtIndex:1];
-    //[[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Next"
-    //        appPSN:[self iTunesPSN]];
+    [[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Next"
+            appPSN:[self iTunesPSN]];
     return YES;
 }
 
@@ -167,18 +218,40 @@
     return YES;
 }
 
+- (BOOL)fastForward
+{
+    [[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Fast"
+            appPSN:[self iTunesPSN]];
+    return YES;
+}
+
+- (BOOL)rewind
+{
+    [[ITAppleEventCenter sharedCenter] sendAEWithEventClass:@"hook" eventID:@"Rwnd"
+            appPSN:[self iTunesPSN]];
+    return YES;
+}
+
+
 - (BOOL)switchToPlaylistAtIndex:(int)index
 {
+    [self runScriptAndReturnResult:[NSString stringWithFormat:
+        @"play playlist %i", index]];
     return NO;
 }
 
 - (BOOL)switchToSongAtIndex:(int)index
 {
+    [self runScriptAndReturnResult:[NSString stringWithFormat:
+        @"play track %i of current playlist", index]];
     return NO;
 }
 
 - (BOOL)switchToEQAtIndex:(int)index
 {
+    [self runScriptAndReturnResult:[NSString stringWithFormat:
+        @"set current EQ preset to EQ preset %i", index]];
+    [self runScriptAndReturnResult:@"set EQ enabled to 1"];
     return NO;
 }
 
@@ -203,4 +276,35 @@
     return number;
 }
 
+- (NSString *)runScriptAndReturnResult:(NSString *)script
+{
+    AEDesc scriptDesc, resultDesc;
+    Size length;
+    NSString *result;
+    Ptr buffer;
+    
+    script = [NSString stringWithFormat:@"tell application \"iTunes\"\n%@\nend tell", script];
+    
+    AECreateDesc(typeChar, [script cString], [script cStringLength], 
+&scriptDesc);
+    
+    OSADoScript(asComponent, &scriptDesc, kOSANullScript, typeChar, kOSAModeCanInteract, &resultDesc);
+    
+    length = AEGetDescDataSize(&resultDesc);
+    buffer = malloc(length);
+    
+    AEGetDescData(&resultDesc, buffer, length);
+    AEDisposeDesc(&scriptDesc);
+    AEDisposeDesc(&resultDesc);
+    result = [NSString stringWithCString:buffer length:length];
+    if ( (! [result isEqualToString:@""])      &&
+         ([result characterAtIndex:0] == '\"') &&
+         ([result characterAtIndex:[result length] - 1] == '\"') ) {
+        result = [result substringWithRange:NSMakeRange(1, [result length] - 2)];
+    }
+    free(buffer);
+    buffer = nil;
+    return result;
+}
+
 @end