Plugin crashes when changing views

[Jesús Corrius]

Steps to reproduce:

1. Empty the picture cache.
2. Start Elisa
3. Go to "Videos -> Internet -> Movie trailers"
4. Change the view

Current result:

You get an exception.

Expected result:

You don't get the exception.

Here it is the back trace of the exception:

Python 2.5.2: C:\OABuild\distribuable-dependencies\deps\Release\bin\python.exe
Fri Jan 30 17:41:04 2009

A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.

 c:\src\upicek_plugins\elisa-plugins\elisa\plugins\pigment\pigment_frontend.py in _update_pass_callb
ack(self=<elisa.plugins.pigment.pigment_frontend.PigmentFrontend object at 0x03645BF0>, viewport=<__
main__.PgmGlViewport object (pgmglviewport0) at 0x3867850>, ticker=<pgm.timing.ticker.Ticker object
at 0x038637D0>)
  702
  703 def _update_pass_callback(self, viewport, ticker):
  704 ticker.tick()
  705
  706 def _resize_canvas(self):
ticker = <pgm.timing.ticker.Ticker object at 0x038637D0>
ticker.tick = <bound method Ticker.tick of <pgm.timing.ticker.Ticker object at 0x038637D0>>

 C:\OABuild\Distribuable-dependencies\deps\Release\lib\site-packages\pgm\timing\ticker.py in tick(se
lf=<pgm.timing.ticker.Ticker object at 0x038637D0>)
   43 update_time = long(time.time() * 1000)
   44 for controller in self._controllers:
   45 controller.update(update_time)
   46
   47 def get_controllers(self):
controller = <controller.Controller(begin=0, duration=200, re....KeyFrame(0.0, 1.00)>], interpolatio
n=LINEAR)>])>
controller.update = <bound method Controller.update of <controller.C...KeyFrame(0.0, 1.00)>], interp
olation=LINEAR)>])>>
update_time = 1233333663995L

 C:\OABuild\Distribuable-dependencies\deps\Release\lib\site-packages\pgm\timing\controller.py in upd
ate(self=<controller.Controller(begin=0, duration=200, re....KeyFrame(0.0, 1.00)>], interpolation=LI
NEAR)>])>, update_time=1233333663995L)
  274 # Stop the animation
  275 else:
  276 self.stop()
  277 return False
  278
self = <controller.Controller(begin=0, duration=200, re....KeyFrame(0.0, 1.00)>], interpolation=LINE
AR)>])>
self.stop = <bound method Controller.stop of <controller.Con...KeyFrame(0.0, 1.00)>], interpolation=
LINEAR)>])>>

 C:\OABuild\Distribuable-dependencies\deps\Release\lib\site-packages\pgm\timing\controller.py in sto
p(self=<controller.Controller(begin=0, duration=200, re....KeyFrame(0.0, 1.00)>], interpolation=LINE
AR)>])>)
  252 # Let's call the end callback
  253 if self._end_callback:
  254 self._end_callback(self)
  255
  256 # Protected methods
self = <controller.Controller(begin=0, duration=200, re....KeyFrame(0.0, 1.00)>], interpolation=LINE
AR)>])>
self._end_callback = <function faded_out at 0x099C2FB0>

 c:\src\upicek_plugins\elisa-plugins\elisa\plugins\poblesec\base\coverflow.py in faded_out(timer=<co
ntroller.Controller(begin=0, duration=200, re....KeyFrame(0.0, 1.00)>], interpolation=LINEAR)>])>)
  278 def faded_out(timer):
  279 self._fade_in_title()
  280 selected_item = self.model[self.nodes.selected_item_index]
  281 self.set_title_from_item(selected_item)
  282
selected_item undefined
self = <AppleTrailersCoverflowController object at 0xb2...gment_controller+PigmentController at 0xa0
56390)>
self.model = []
self.nodes = <CoverflowList object at 0xb237dc8 (elisa+plugins+pigment+widgets+list+List at 0x9cca42
0)>
self.nodes.selected_item_index = 0
<type 'exceptions.IndexError'>: list index out of range
    __class__ = <type 'exceptions.IndexError'>
    __delattr__ = <method-wrapper '__delattr__' of exceptions.IndexError object at 0x099C8120>
    __dict__ = {}
    __doc__ = 'Sequence index out of range.'
    __getattribute__ = <method-wrapper '__getattribute__' of exceptions.IndexError object at 0x099C8
120>
    __getitem__ = <method-wrapper '__getitem__' of exceptions.IndexError object at 0x099C8120>
    __getslice__ = <method-wrapper '__getslice__' of exceptions.IndexError object at 0x099C8120>
    __hash__ = <method-wrapper '__hash__' of exceptions.IndexError object at 0x099C8120>
    __init__ = <method-wrapper '__init__' of exceptions.IndexError object at 0x099C8120>
    __new__ = <built-in method __new__ of type object at 0x10232C10>
    __reduce__ = <built-in method __reduce__ of exceptions.IndexError object at 0x099C8120>
    __reduce_ex__ = <built-in method __reduce_ex__ of exceptions.IndexError object at 0x099C8120>
    __repr__ = <method-wrapper '__repr__' of exceptions.IndexError object at 0x099C8120>
    __setattr__ = <method-wrapper '__setattr__' of exceptions.IndexError object at 0x099C8120>
    __setstate__ = <built-in method __setstate__ of exceptions.IndexError object at 0x099C8120>
    __str__ = <method-wrapper '__str__' of exceptions.IndexError object at 0x099C8120>
    args = ('list index out of range',)
    message = 'list index out of range'

The above is a description of an error in a Python program. Here is
the original traceback:

Traceback (most recent call last):
  File "c:\src\upicek_plugins\elisa-plugins\elisa\plugins\pigment\pigment_frontend.py", line 704, in
 _update_pass_callback
    ticker.tick()
  File "C:\OABuild\Distribuable-dependencies\deps\Release\lib\site-packages\pgm\timing\ticker.py", l
ine 45, in tick
    controller.update(update_time)
  File "C:\OABuild\Distribuable-dependencies\deps\Release\lib\site-packages\pgm\timing\controller.py
", line 276, in update
    self.stop()
  File "C:\OABuild\Distribuable-dependencies\deps\Release\lib\site-packages\pgm\timing\controller.py
", line 254, in stop
    self._end_callback(self)
  File "c:\src\upicek_plugins\elisa-plugins\elisa\plugins\poblesec\base\coverflow.py", line 280, in
faded_out
    selected_item = self.model[self.nodes.selected_item_index]
IndexError: list index out of range

[Michał Sawicz (saviq)]

I can't reproduce that.