# 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('Tab') # For non-OLPC machines self._key_grabber.grab('F9') self._key_grabber.grab('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 == 'F9': self._frame.notify_key_press() elif key == '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 == '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 == '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): host = self._hosts[home_activity.get_xid()] 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)