AttributeError: 'MusicScreen' object has no attribute 'tab_group'

[Marco Rodrigues]

I'm using version 0.3 and I've no files associated with entertainer content manager, so music is empty.

TESTCASE:
1- Select menu "Music"
2- Press key "p" and it shows this traceback.

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/entertainerlib/frontend/gui/user_interface.py", line 474, in handle_keyboard_event
    self.handle_user_event(UserEvent(UserEvent.PLAYER_PLAY_PAUSE))
  File "/usr/lib/python2.5/site-packages/entertainerlib/frontend/gui/user_interface.py", line 507, in handle_user_event
    if self.current.is_interested_in_play_action():
  File "/usr/lib/python2.5/site-packages/entertainerlib/frontend/gui/screens/music_screen.py", line 107, in is_interested_in_play_action
    if self.tab_group.tab("artists").is_active() or \
AttributeError: 'MusicScreen' object has no attribute 'tab_group'

[Matt Layman (mblayman)]

An additional check is needed in the is_interested_in_play_action method for when the number of tracks == 0. This should cause a return before the method gets the tab group (which won't be defined unless there are actual tracks, see the init method).