Hi,

I've installed silo 055 and check the result with the new code of the 
indicator-sound from branch: 
lp:~xavi-garcia-mena/indicator-sound/next-play-prev-buttons-bug-1373313

The code instead of setting the MPRIS controls by default reads the
CanPlay, CanGoNext and CanGoPrevous properties.

The MPRIS player always return true to CanPlay, but returns always false
for CanGoNext and CanGoPrevious, the result is obviously that the play
control is the only only one showing as active.

I've also noticed that the player is not emiting any signal when the properties 
change. 
The indicator-sound is subscribed to the PropertiesChanged signal with the 
following code:

/* Connecting to GDBusProxy's "g-properties-changed" signal here, because 
vala's dbus objects don't
    emit notify signals */
var gproxy = this.proxy as DBusProxy;
gproxy.g_properties_changed.connect (this.proxy_properties_changed);

To debug the code I'm listing all the properties that changed.
The method proxy_properties_changed is never called.

This works fine on the desktop, but not on the phone with silo 55.

Should we register to the signal in a different way? or should we
consider the above issues as a bug?


In relation with the play/pause button: the desktop changes from the play to 
the pause button correctly with the current indicator-sound code, but not on 
the phone. (could this be a bug in the UI?)

We can maybe set a different value for the play property in the
indicator menu, but as I said the PropertiesChanged signal is not
working...

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https://bugs.launchpad.net/bugs/1488569

Title:
  MPRIS controls don't reflect the current player state

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