1 files changed, 15 insertions, 0 deletions
diff --git a/notifier.py b/notifier.py
new file mode 100644
index 0000000..1a68c56
--- /dev/null
+++ b/notifier.py
@@ -0,0 +1,15 @@
+
+class Notifier:
+    PLAYING_STATE_EVENT = 0
+
+    def __init__(self):
+        self._callbacks = dict()
+
+    def registerCallback(self, event, callback):
+        if event not in self._callbacks:
+            self._callbacks[event] = list()
+        self._callbacks[event].append(callback)
+
+    def notify(self, event):
+        for callback in self._callbacks.get(event, list()):
+            callback()