# 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 from sets import Set import logging import gobject import wnck from view.home.HomeWindow import HomeWindow from sugar.activity.activityhandle import ActivityHandle from sugar.graphics.popupcontext import PopupContext from view.ActivityHost import ActivityHost from sugar.activity import activityfactory, bundleregistry from view.frame.frame import Frame from view.keyhandler import KeyHandler import sugar class Shell(gobject.GObject): def __init__(self, model): gobject.GObject.__init__(self) self._activities_starting = Set() self._model = model self._hosts = {} self._screen = wnck.screen_get_default() self._current_host = None self._screen_rotation = 0 self._key_handler = KeyHandler(self) self._popup_context = PopupContext() self._frame = Frame(self) self._frame.show() self._home_window = HomeWindow(self) self._home_window.show() self._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.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 if home_activity.get_type() in self._activities_starting: self._activities_starting.remove(home_activity.get_type()) def _activity_removed_cb(self, home_model, home_activity): if home_activity.get_type() in self._activities_starting: self._activities_starting.remove(home_activity.get_type()) 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) self.set_zoom_level(sugar.ZOOM_ACTIVITY) else: self.set_zoom_level(sugar.ZOOM_HOME) def get_model(self): return self._model def get_frame(self): return self._frame def get_popup_context(self): return self._popup_context def _join_error_cb(self, handler, err, home_model): logging.debug("Failed to join activity %s: %s" % (handler.get_activity_id(), err)) home_model.notify_activity_launch_failed(handler.get_activity_id()) def join_activity(self, bundle_id, activity_id): activity = self.get_activity(activity_id) if activity: activity.present() return # Get the service name for this activity, if # we have a bundle on the system capable of handling # this activity type breg = bundleregistry.get_registry() bundle = breg.get_bundle(bundle_id) if not bundle: logging.error("Couldn't find activity for type %s" % bundle_id) return home_model = self._model.get_home() home_model.notify_activity_launch(activity_id, bundle_id) handle = ActivityHandle(activity_id) handle.pservice_id = activity_id handler = activityfactory.create(bundle_id, handle) handler.connect('error', self._join_error_cb, home_model) def _start_error_cb(self, handler, err, home_model): home_model.notify_activity_launch_failed(handler.get_activity_id()) def start_activity(self, activity_type): if activity_type in self._activities_starting: logging.debug("This activity is still launching.") return logging.debug('Trying to start activity of type %s' % activity_type) self._activities_starting.add(activity_type) try: handler = activityfactory.create(activity_type) home_model = self._model.get_home() home_model.notify_activity_launch(handler.get_activity_id(), activity_type) handler.connect('error', self._start_error_cb, home_model) except Exception, err: logging.debug("Couldn't start activity of type %s: %s" % (activity_type, err)) self._activities_starting.remove(activity_type) # Zoom to Home for launch feedback self.set_zoom_level(sugar.ZOOM_HOME) def set_zoom_level(self, level): if self._zoom_level == level: return if len(self._hosts) == 0 and level == sugar.ZOOM_ACTIVITY: return self._zoom_level = level if self._zoom_level == sugar.ZOOM_ACTIVITY: self._screen.toggle_showing_desktop(False) else: self._screen.toggle_showing_desktop(True) self._home_window.set_zoom_level(self._zoom_level) if self._zoom_level == sugar.ZOOM_HOME: self._frame.show() else: self._frame.hide() 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)