Initial music playback!

src/c/jellyPod.c

@@ -124,6 +124,24 @@ static void inbox_received_handler(DictionaryIterator *iter, void *context) {
 	}
 }
 
+static void to_pkjs_play_from_track(uint16_t seqId) {
+	if (!s_pkjs_ready) {
+		return;
+	}
+
+	DictionaryIterator *out;
+	AppMessageResult result = app_message_outbox_begin(&out);
+	if (result != APP_MSG_OK) {
+		return;
+	}
+	dict_write_uint16(out, MESSAGE_KEY_OUT_PLAY_SEQ_ID, seqId);
+
+	result = app_message_outbox_send();
+	if (result != APP_MSG_OK) {
+		return;
+	}
+}
+
 static void to_pkjs_move_deeper(NavScope scope, uint16_t *subscope_index) {
 	if (!s_pkjs_ready) {
 		return;
@@ -236,7 +254,7 @@ static void menu_select_click(struct MenuLayer *menu_layer, MenuIndex *clicked_i
 		to_pkjs_move_deeper(s_current_menu_scope + 1, &clicked_index->row);
 		break;
 	case NAV_SCOPE_ALBUM_TRACKS:
-		// TODO tell PKJS to play track (and queue sequential tracks)
+		to_pkjs_play_from_track(s_current_menu_seq_ids[clicked_index->row]);
 		break;
 	}
 }