sugar-toolkit-gtk3/shell/home/MeshGroup.py

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import random
import goocanvas
import conf
from sugar.canvas.IconItem import IconItem
from sugar.canvas.IconItem import IconColor
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from sugar.presence import PresenceService
import Theme
class ActivityItem(IconItem):
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def __init__(self, service):
self._service = service
IconItem.__init__(self, icon_name=self.get_icon_name(),
color=self.get_color(), size=144)
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def get_id(self):
return self._service.get_activity_id()
def get_icon_name(self):
registry = conf.get_activity_registry()
info = registry.get_activity_from_type(self._service.get_type())
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return info.get_icon()
def get_color(self):
pservice = PresenceService.get_instance()
activity = pservice.get_activity(self.get_id())
return IconColor(activity.get_color())
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def get_service(self):
return self._service
class MeshGroup(goocanvas.Group):
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WIDTH = 1200.0 * 3.5
HEIGHT = 900.0 * 3.5
def __init__(self, shell, icon_layout):
goocanvas.Group.__init__(self)
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self._shell = shell
self._icon_layout = icon_layout
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self._activities = {}
self._theme = Theme.get_instance()
color = self._theme.get_home_mesh_color()
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self._mesh_rect = goocanvas.Rect(width=MeshGroup.WIDTH,
height=MeshGroup.HEIGHT,
fill_color=color)
self.add_child(self._mesh_rect)
pservice = PresenceService.get_instance()
pservice.connect("service-appeared", self.__service_appeared_cb)
for service in pservice.get_services():
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self.__check_service(service)
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def __service_appeared_cb(self, pservice, service):
self.__check_service(service)
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def __check_service(self, service):
registry = conf.get_activity_registry()
if registry.get_activity_from_type(service.get_type()) != None:
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if not self.has_activity(service.get_activity_id()):
self.add_activity(service)
def has_activity(self, activity_id):
return self._activities.has_key(activity_id)
def add_activity(self, service):
item = ActivityItem(service)
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item.connect('clicked', self.__activity_clicked_cb)
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self._icon_layout.add_icon(item)
self.add_child(item)
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self._activities[item.get_id()] = item
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def __activity_clicked_cb(self, item):
default_type = item.get_service().get_type()
registry = conf.get_activity_registry()
bundle_id = registry.get_activity_from_type().get_id()
activity_id = service.get_activity_id()
self._shell.join_activity(bundle_id, activity_id)