Added playing state callback to player, refactored notifier to use it

1 files changed, 15 insertions, 0 deletions

diff --git a/player_mock.py b/player_mock.py
index 5aad769..92da675 100644
--- a/player_mock.py
+++ b/player_mock.py
@@ -9,15 +9,25 @@ class Player():
         self.position = 0.0
         self.volume = 1.0
         self.currentSong = None
+        self.playingStateChangedCallback = None
 
     def play(self):
+        previousState = self.state
         self.state = Player.PLAYING
+        if previousState != Player.PLAYING:
+            self.playingStateChangedCallback()
 
     def stop(self):
+        previousState = self.state
         self.state = Player.STOPPED
+        if previousState != Player.STOPPED:
+            self.playingStateChangedCallback()
 
     def pause(self):
+        previousState = self.state
         self.state = Player.PAUSED
+        if previousState != Player.PAUSED:
+            self.playingStateChangedCallback()
 
     def isPlaying(self):
         return self.state == Player.PLAYING
@@ -43,3 +53,8 @@ class Player():
     def setCurrentSong(self, path):
         self.currentSong = path
 
+    def setPlayingStateChangedCallback(self, callback):
+        self.playingStateChangedCallback = callback
+    
+    def simulatePlayingStateChanged(self):
+        self.playingStateChangedCallback()