@ -25,6 +25,13 @@ from sugar.presence import presenceservice
from sugar import profile
class HomeActivity ( gobject . GObject ) :
""" Activity which appears in the " Home View " of the Sugar shell
This class stores the Sugar Shell ' s metadata regarding a
given activity / application in the system . It interacts with
the sugar . activity . * modules extensively in order to
accomplish its tasks .
"""
__gsignals__ = {
' launch-timeout ' : ( gobject . SIGNAL_RUN_FIRST ,
gobject . TYPE_NONE ,
@ -32,6 +39,15 @@ class HomeActivity(gobject.GObject):
}
def __init__ ( self , bundle , activity_id ) :
""" Initialise the HomeActivity
bundle - - sugar . activity . bundle . Bundle instance ,
provides the information required to actually
create the new instance . This is , in effect ,
the " type " of activity being created .
activity_id - - unique identifier for this instance
of the activity type
"""
gobject . GObject . __init__ ( self )
self . _window = None
self . _xid = None
@ -52,6 +68,8 @@ class HomeActivity(gobject.GObject):
self . _launch_timeout_id = 0
def _launch_timeout_cb ( self , user_data = None ) :
""" Callback for launch operation timeouts
"""
logging . debug ( " Activity %s ( %s ) launch timed out " %
( self . _activity_id , self . get_type ) )
self . _launch_timeout_id = 0
@ -78,17 +96,33 @@ class HomeActivity(gobject.GObject):
self . _service = service
def get_service ( self ) :
""" Retrieve the application ' s sugar introspection service
Note that non - native Sugar applications will not have
such a service , so the return value will be None in
those cases .
"""
return self . _service
def get_title ( self ) :
""" Retrieve the application ' s root window ' s suggested title """
if not self . _launched :
raise RuntimeError ( " Activity is still launching. " )
return self . _window . get_name ( )
def get_icon_name ( self ) :
""" Retrieve the bundle ' s icon (file) name """
return self . _bundle . get_icon ( )
def get_icon_color ( self ) :
""" Retrieve the appropriate icon colour for this activity
Uses activity_id to index into the PresenceService ' s
set of activity colours , if the PresenceService does not
have an entry ( implying that this is not a Sugar - shared application )
uses the local user ' s profile.get_color() to determine the
colour for the icon .
"""
pservice = presenceservice . get_instance ( )
activity = pservice . get_activity ( self . _activity_id )
if activity != None :
@ -97,28 +131,53 @@ class HomeActivity(gobject.GObject):
return profile . get_color ( )
def get_activity_id ( self ) :
""" Retrieve the " activity_id " passed in to our constructor
This is a " globally likely unique " identifier generated by
sugar . util . unique_id
"""
return self . _activity_id
def get_xid ( self ) :
""" Retrieve the X-windows ID of our root window """
if not self . _launched :
raise RuntimeError ( " Activity is still launching. " )
return self . _xid
def get_window ( self ) :
""" Retrieve the X-windows root window of this application
This was stored by the set_window method , which was
called by HomeModel . _add_activity , which was called
via a callback that looks for all ' window-opened '
events .
HomeModel currently uses a dbus service query on the
activity to determine to which HomeActivity the newly
launched window belongs .
"""
if not self . _launched :
raise RuntimeError ( " Activity is still launching. " )
return self . _window
def get_type ( self ) :
""" Retrieve bundle ' s " service_name " for future reference """
return self . _bundle . get_service_name ( )
def get_shared ( self ) :
""" Return whether this activity is using Presence service sharing """
if not self . _launched :
raise RuntimeError ( " Activity is still launching. " )
return self . _service . get_shared ( )
def get_launch_time ( self ) :
""" Return the time at which the activity was first launched
Format is floating - point time . time ( ) value
( seconds since the epoch )
"""
return self . _launch_time
def get_launched ( self ) :
""" Return whether we have bound our top-level window yet """
return self . _launched
Mike C. Fletcher
17 years ago