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# Copyright (C) 2006, Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import logging
import gobject
import wnck
import view.stylesheet
from sugar.graphics import style
from view.home.HomeWindow import HomeWindow
from sugar.presence import PresenceService
from view.ActivityHost import ActivityHost
from sugar.activity import ActivityFactory
from view.frame.Frame import Frame
from view.keyhandler import KeyHandler
from view.hardwaremanager import HardwareManager
from _sugar import AudioManager
import sugar
class Shell(gobject.GObject):
def __init__(self, model):
gobject.GObject.__init__(self)
self._model = model
self._hosts = {}
self._screen = wnck.screen_get_default()
self._current_host = None
self._screen_rotation = 0
style.load_stylesheet(view.stylesheet)
self._hw_manager = HardwareManager()
self._audio_manager = AudioManager()
self._home_window = HomeWindow(self)
self._home_window.show()
self.set_zoom_level(sugar.ZOOM_HOME)
self._key_handler = KeyHandler(self)
home_model = self._model.get_home()
home_model.connect('activity-added', self._activity_added_cb)
home_model.connect('activity-removed', self._activity_removed_cb)
home_model.connect('active-activity-changed',
self._active_activity_changed_cb)
self._frame = Frame(self)
self._frame.show_and_hide(3)
self._pservice = PresenceService.get_instance()
#self.start_activity('org.laptop.JournalActivity')
def _activity_added_cb(self, home_model, home_activity):
activity_host = ActivityHost(home_activity)
self._hosts[activity_host.get_xid()] = activity_host
def _activity_removed_cb(self, home_model, home_activity):
if not home_activity.get_launched():
return
xid = home_activity.get_xid()
if self._hosts.has_key(xid):
self._hosts[xid].destroy()
del self._hosts[xid]
def _active_activity_changed_cb(self, home_model, home_activity):
if home_activity:
host = self._hosts[home_activity.get_xid()]
else:
host = None
if self._current_host:
self._current_host.set_active(False)
self._current_host = host
if self._current_host:
self._current_host.set_active(True)
def get_hardware_manager(self):
return self._hw_manager
def get_audio_manager(self):
return self._audio_manager
def get_model(self):
return self._model
def get_frame(self):
return self._frame
def _join_success_cb(self, handler, activity, activity_ps, activity_id, activity_type):
logging.debug("Joining activity %s (%s)" % (activity_id, activity_type))
activity.join(activity_ps.object_path())
def _join_error_cb(self, handler, err, home_model, activity_id, activity_type):
logging.error("Couldn't launch activity %s (%s):\n%s" % (activity_id, activity_type, err))
home_mode.notify_activity_launch_failed(activity_id)
def join_activity(self, bundle_id, activity_id):
activity = self.get_activity(activity_id)
if activity:
activity.present()
return
activity_ps = self._pservice.get_activity(activity_id)
if not activity_ps:
logging.error("Couldn't find shared activity for %s" % activity_id)
return
# Get the service name for this activity, if
# we have a bundle on the system capable of handling
# this activity type
breg = self._model.get_bundle_registry()
bundle = breg.find_by_default_type(bundle_id)
if not bundle:
logging.error("Couldn't find activity for type %s" % bundle_id)
return
act_type = bundle.get_service_name()
home_model = self._model.get_home()
home_model.notify_activity_launch(activity_id, act_type)
handler = ActivityFactory.create(act_type)
handler.connect('success', self._join_success_cb, activity_ps, activity_id, act_type)
handler.connect('error', self._join_error_cb, home_model, activity_id, act_type)
def _find_unique_activity_id(self):
# create a new unique activity ID
i = 0
act_id = None
while i < 10:
act_id = sugar.util.unique_id()
i += 1
# check through existing activities
found = False
for xid, act_host in self._hosts.items():
if act_host.get_id() == act_id:
found = True
break
if found:
act_id = None
continue
# check through network activities
activities = self._pservice.get_activities()
for act in activities:
if act_id == act.get_id():
found = True
break
if found:
act_id = None
continue
return act_id
def _start_success_cb(self, handler, activity, activity_id, activity_type):
logging.debug("Started activity %s (%s)" % (activity_id, activity_type))
activity.start(activity_id)
def _start_error_cb(self, handler, err, home_model, activity_id, activity_type):
logging.error("Couldn't launch activity %s (%s):\n%s" % (activity_id, activity_type, err))
home_model.notify_activity_launch_failed(activity_id)
def start_activity(self, activity_type):
logging.debug('Shell.start_activity')
act_id = self._find_unique_activity_id()
if not act_id:
logging.error("Couldn't find available activity ID.")
return None
home_model = self._model.get_home()
home_model.notify_activity_launch(act_id, activity_type)
logging.debug("Shell.start_activity will start %s (%s)" % (act_id, activity_type))
handler = ActivityFactory.create(activity_type)
handler.connect('success', self._start_success_cb, act_id, activity_type)
handler.connect('error', self._start_error_cb, home_model, act_id, activity_type)
# Zoom to Home for launch feedback
self.set_zoom_level(sugar.ZOOM_HOME)
def set_zoom_level(self, level):
if level == sugar.ZOOM_ACTIVITY:
self._screen.toggle_showing_desktop(False)
else:
self._screen.toggle_showing_desktop(True)
self._home_window.set_zoom_level(level)
def get_current_activity(self):
return self._current_host
def get_activity(self, activity_id):
for host in self._hosts.values():
if host.get_id() == activity_id:
return host
return None
def toggle_chat_visibility(self):
act = self.get_current_activity()
if not act:
return
is_visible = self._frame.is_visible()
if act.is_chat_visible():
frame_was_visible = act.chat_hide()
if not frame_was_visible:
self._frame.do_slide_out()
else:
if not is_visible:
self._frame.do_slide_in()
act.chat_show(is_visible)
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