added handling of incoming SysEx messages

iOS/Control/Classes/MIDI.m

@@ -27,6 +27,30 @@ static void notifyProc(const MIDINotification *message, void *refCon) {// if MID
 static void readProc(const MIDIPacketList *pktlist, void *refCon, void *connRefCon) {
 	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
 	MIDIPacket *packet = (MIDIPacket *)pktlist->packet; 
+
+  // most (all?) normal MIDI messages are less than 4 bytes long and i can't 
+  // find any way to ask if this is a SysEx packet, so this is a hack. we assume
+  // that if the packet length is > 3, then this is a SysEx message. also, this
+  // does not handle the case where a SysEx message has been broken into many
+  // packets. a SysEx message is basically just a list of bytes. here we build
+  // up a js array of ints (e.g. [1,2,3]) and pass it to processSysExMessage().
+  //   -- karl yerkes
+  if (packet->length > 3) {
+    NSMutableString* mutableString = [NSMutableString
+      stringWithFormat:@"midiManager.processSysExMessage([%d",
+      packet->data[0]];
+    for (int i = 1; i < packet->length; ++i)
+      [mutableString appendFormat:@",%d", (int)packet->data[i]];
+    [mutableString appendFormat:@"]);"];
+
+    [me.webView
+      performSelectorOnMainThread:@selector(stringByEvaluatingJavaScriptFromString:)
+      withObject:mutableString
+      waitUntilDone:NO];
+
+    [pool drain];
+    return; // exit this function
+  }
 
 	int packetStart = packet->data[0];
 	int channel = (packetStart &= 15) + 1;

www/js/MIDIManager.js

@@ -4,6 +4,29 @@ function MIDIManager() {
 	return this;
 }
 
+MIDIManager.prototype.processSysExMessage = function(value) {	
+	this.delegate.processSysEx(value);
+}	
+
+MIDIManager.prototype.processSysEx = function(value) {
+	if (typeof control.constants != "undefined") {
+    for (var i = 0; i < control.constants.length; i++) {
+      var w = control.constants[i];
+		  if (w.midiType == "sysex") {
+        w.setValue(value, false); // "value" is an array of ints
+        break;
+      }
+    }
+  }
+	for (var i = 0; i < control.widgets.length; i++) {
+		var w = control.widgets[i];
+    if (w.midiType == "sysex") {
+      w.setValue(value, false); // "value" is an array of ints
+      break;
+    }
+  }
+}
+
 MIDIManager.prototype.processMIDIMessage = function(msgType, channel, number, value) {	
 	this.delegate.processMIDI(msgType, channel, number, value);
 }	
@@ -55,4 +78,4 @@ MIDIManager.prototype.sendMIDI = function(msgType, channel, number, value) {
 			PhoneGap.exec('MIDI.send', msgType, JSON.stringify(channel), number);
 		}
 	}
-}
+}