sugar-toolkit-gtk3/shell/view/frame/FriendsBox.py

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import hippo
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from sugar.graphics.canvasicon import CanvasIcon
from sugar.graphics.iconcolor import IconColor
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from sugar.graphics import style
from sugar.presence import PresenceService
from view.BuddyIcon import BuddyIcon
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from model.BuddyModel import BuddyModel
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from view.frame.MenuStrategy import MenuStrategy
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class FriendsBox(hippo.CanvasBox):
def __init__(self, shell, menu_shell):
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hippo.CanvasBox.__init__(self)
self._shell = shell
self._menu_shell = menu_shell
self._activity_ps = None
self._joined_hid = -1
self._left_hid = -1
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self._buddies = {}
self._pservice = PresenceService.get_instance()
self._pservice.connect('activity-appeared',
self.__activity_appeared_cb)
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shell.connect('activity-changed', self.__activity_changed_cb)
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def add(self, buddy):
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model = BuddyModel(buddy=buddy)
icon = BuddyIcon(self._shell, self._menu_shell, model)
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style.apply_stylesheet(icon, 'frame.BuddyIcon')
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icon.set_menu_strategy(MenuStrategy())
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self.append(icon)
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self._buddies[buddy.get_name()] = icon
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def remove(self, buddy):
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self.remove(self._buddies[buddy.get_name()])
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def clear(self):
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for item in self.get_children():
self.remove(item)
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self._buddies = {}
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def __activity_appeared_cb(self, pservice, activity_ps):
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activity = self._shell.get_current_activity()
if activity and activity_ps.get_id() == activity.get_id():
self._set_activity_ps(activity_ps)
def _set_activity_ps(self, activity_ps):
if self._activity_ps == activity_ps:
return
if self._joined_hid > 0:
self._activity_ps.disconnect(self._joined_hid)
self._joined_hid = -1
if self._left_hid > 0:
self._activity_ps.disconnect(self._left_hid)
self._left_hid = -1
self._activity_ps = activity_ps
self.clear()
if activity_ps != None:
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for buddy in activity_ps.get_joined_buddies():
self.add(buddy)
self._joined_hid = activity_ps.connect(
'buddy-joined', self.__buddy_joined_cb)
self._left_hid = activity_ps.connect(
'buddy-left', self.__buddy_left_cb)
def __activity_changed_cb(self, group, activity):
if activity:
ps = self._pservice.get_activity(activity.get_id())
self._set_activity_ps(ps)
else:
self._set_activity_ps(None)
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def __buddy_joined_cb(self, activity, buddy):
self.add(buddy)
def __buddy_left_cb(self, activity, buddy):
self.remove(buddy)