sugar-toolkit-gtk3/shell/view/Shell.py
2006-12-24 15:58:53 +01:00

225 lines
7.8 KiB
Python

# 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 gtk
import gobject
import wnck
import dbus
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 sugar.activity import Activity
from view.frame.Frame import Frame
from view.dconmanager import DCONManager
from _sugar import KeyGrabber
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
style.load_stylesheet(view.stylesheet)
self._dcon_manager = DCONManager()
self._key_grabber = KeyGrabber()
self._key_grabber.connect('key-pressed',
self._key_pressed_cb)
self._key_grabber.connect('key-released',
self._key_released_cb)
self._grab_keys()
self._home_window = HomeWindow(self)
self._home_window.show()
self.set_zoom_level(sugar.ZOOM_HOME)
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.start_activity('org.laptop.JournalActivity')
def _handle_camera_key(self):
if self._current_host:
if self._current_host.execute('camera', []):
return
self.start_activity('org.laptop.CameraActivity')
def _grab_keys(self):
self._key_grabber.grab('F1')
self._key_grabber.grab('F2')
self._key_grabber.grab('F3')
self._key_grabber.grab('F4')
self._key_grabber.grab('F5')
self._key_grabber.grab('F6')
self._key_grabber.grab('F7')
self._key_grabber.grab('F8')
self._key_grabber.grab('0xDC') # Camera key
self._key_grabber.grab('0xE0') # Overlay key
self._key_grabber.grab('0x93') # Frame key
self._key_grabber.grab('<alt>Tab')
# For non-OLPC machines
self._key_grabber.grab('<shft><alt>F9')
self._key_grabber.grab('<shft><alt>F10')
def _key_pressed_cb(self, grabber, key):
if key == 'F1':
self.set_zoom_level(sugar.ZOOM_MESH)
elif key == 'F2':
self.set_zoom_level(sugar.ZOOM_FRIENDS)
elif key == 'F3':
self.set_zoom_level(sugar.ZOOM_HOME)
elif key == 'F4':
self.set_zoom_level(sugar.ZOOM_ACTIVITY)
elif key == 'F5':
self._dcon_manager.decrease_brightness()
elif key == 'F6':
self._dcon_manager.increase_brightness()
elif key == 'F7':
self._dcon_manager.set_mode(DCONManager.COLOR_MODE)
elif key == 'F8':
self._dcon_manager.set_mode(DCONManager.BLACK_AND_WHITE_MODE)
elif key == '<shft><alt>F9':
self._frame.notify_key_press()
elif key == '<shft><alt>F10':
self.toggle_chat_visibility()
elif key == '0xDC': # Camera key
self._handle_camera_key()
elif key == '0xE0': # Overlay key
self.toggle_chat_visibility()
elif key == '0x93': # Frame key
self._frame.notify_key_press()
elif key == '<alt>Tab':
self.set_zoom_level(sugar.ZOOM_HOME)
box = self._home_window.get_home_box()
box.grab_and_rotate()
def _key_released_cb(self, grabber, key):
if key == '<shft><alt>F9':
self._frame.notify_key_release()
elif key == '0x93':
self._frame.notify_key_release()
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):
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_model(self):
return self._model
def join_activity(self, bundle_id, activity_id):
pservice = PresenceService.get_instance()
activity = self.get_activity(activity_id)
if activity:
activity.present()
else:
activity_ps = pservice.get_activity(activity_id)
if activity_ps:
# 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 bundle:
serv_name = bundle.get_service_name()
try:
activity = ActivityFactory.create(serv_name)
except DBusException, e:
logging.error("Couldn't launch activity %s:\n%s" % (serv_name, e))
else:
logging.debug("Joining activity type %s id %s" % (serv_name, activity_id))
activity.join(activity_ps.object_path())
else:
logging.error("Couldn't find activity for type %s" % bundle_id)
else:
logging.error('Cannot start activity.')
def start_activity(self, activity_type):
logging.debug('Shell.start_activity')
activity = ActivityFactory.create(activity_type)
activity.start()
return activity
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)