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

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import goocanvas
from sugar.canvas.IconItem import IconItem
from sugar.canvas.IconColor import IconColor
from sugar.canvas.CanvasBox import CanvasBox
from sugar.presence import PresenceService
from view.BuddyIcon import BuddyIcon
from model.BuddyInfo import BuddyInfo
class RightPanel(CanvasBox):
def __init__(self, shell):
CanvasBox.__init__(self, shell.get_grid(), CanvasBox.VERTICAL, 1)
self._shell = 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)
shell.get_model().connect('activity-changed',
self.__activity_changed_cb)
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def add(self, buddy):
icon = BuddyIcon(self._shell, BuddyInfo(buddy))
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icon.set_popup_distance(1)
self.set_constraints(icon, 3, 3)
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self.add_child(icon)
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self._buddies[buddy.get_name()] = icon
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def remove(self, buddy):
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i = self.find_child(self._buddies[buddy.get_name()])
self.remove_child(i)
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def clear(self):
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while (self.get_n_children() > 0):
self.remove_child(0)
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self._buddies = {}
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def __activity_appeared_cb(self, pservice, activity_ps):
activity = self._shell.get_model().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):
activity_ps = self._pservice.get_activity(activity.get_id())
self._set_activity_ps(activity_ps)
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def __buddy_joined_cb(self, activity, buddy):
self.add(buddy)
def __buddy_left_cb(self, activity, buddy):
self.remove(buddy)