# Copyright (C) 2006-2007 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 gettext import gettext as _ import logging import tempfile import os import time import shutil import gobject import gtk import wnck import dbus from sugar.activity.activityhandle import ActivityHandle from sugar import activity from sugar.activity import activityfactory from sugar.datastore import datastore from sugar import profile from sugar import env from view.ActivityHost import ActivityHost from view.frame import frame from view.keyhandler import KeyHandler from view.home.HomeWindow import HomeWindow from view.launchwindow import LaunchWindow from model import shellmodel # #3903 - this constant can be removed and assumed to be 1 when dbus-python # 0.82.3 is the only version used if dbus.version >= (0, 82, 3): DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND = 1 else: DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND = 1000 class Shell(gobject.GObject): def __init__(self): gobject.GObject.__init__(self) self._model = shellmodel.get_instance() self._hosts = {} self._launchers = {} self._screen = wnck.screen_get_default() self._screen_rotation = 0 self._key_handler = KeyHandler() self._frame = frame.get_instance() self.home_window = HomeWindow() self.home_window.show() home_model = self._model.get_home() home_model.connect('launch-started', self.__launch_started_cb) home_model.connect('launch-failed', self.__launch_failed_cb) home_model.connect('launch-completed', self.__launch_completed_cb) home_model.connect('activity-removed', self._activity_removed_cb) gobject.idle_add(self._start_journal_idle) def _start_journal_idle(self): # Mount the datastore in internal flash ds_path = env.get_profile_path('datastore') try: datastore.mount(ds_path, [], timeout=120 * \ DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND) except Exception: # Don't explode if there's corruption; move the data out of the way # and attempt to create a store from scratch. shutil.move(ds_path, os.path.abspath(ds_path) + str(time.time())) datastore.mount(ds_path, [], timeout=120 * \ DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND) # Checking for the bundle existence will also ensure # that the shell service is started up. registry = activity.get_registry() if registry.get_activity('org.laptop.JournalActivity'): self.start_activity('org.laptop.JournalActivity') def __launch_started_cb(self, home_model, home_activity): if home_activity.is_journal(): return launch_window = LaunchWindow(home_activity) launch_window.show() self._launchers[home_activity.get_activity_id()] = launch_window self._model.set_zoom_level(shellmodel.ShellModel.ZOOM_ACTIVITY) def __launch_failed_cb(self, home_model, home_activity): if not home_activity.is_journal(): self._destroy_launcher(home_activity) def __launch_completed_cb(self, home_model, home_activity): activity_host = ActivityHost(home_activity) self._hosts[activity_host.get_xid()] = activity_host if not home_activity.is_journal(): self._destroy_launcher(home_activity) def _destroy_launcher(self, home_activity): activity_id = home_activity.get_activity_id() if activity_id in self._launchers: self._launchers[activity_id].destroy() del self._launchers[activity_id] else: logging.error('Launcher for %s is missing' % activity_id) def _activity_removed_cb(self, home_model, home_activity): xid = home_activity.get_xid() if self._hosts.has_key(xid): del self._hosts[xid] def _get_host_from_activity_model(self, activity_model): host = None if activity_model is not None: xid = activity_model.get_xid() if xid: host = self._hosts[activity_model.get_xid()] return host def get_model(self): return self._model def get_frame(self): return self._frame def join_activity(self, bundle_id, activity_id): activity_host = self.get_activity(activity_id) if activity_host: activity_host.present() return # Get the service name for this activity, if # we have a bundle on the system capable of handling # this activity type registry = activity.get_registry() bundle = registry.get_activity(bundle_id) if not bundle: logging.error("Couldn't find activity for type %s" % bundle_id) return handle = ActivityHandle(activity_id) activityfactory.create(bundle_id, handle) def start_activity(self, activity_type): activityfactory.create(activity_type) def start_activity_with_uri(self, activity_type, uri): activityfactory.create_with_uri(activity_type, uri) def take_activity_screenshot(self): if self._model.get_zoom_level() != shellmodel.ShellModel.ZOOM_ACTIVITY: return if self.get_frame().visible: return home_model = self._model.get_home() active_activity = home_model.get_active_activity() if active_activity is not None: service = active_activity.get_service() if service is not None: try: service.TakeScreenshot(timeout=2.0) except dbus.DBusException, e: logging.debug('Error raised by TakeScreenshot(): %s', e) def set_zoom_level(self, level): if level == self._model.get_zoom_level(): return self.take_activity_screenshot() if level == shellmodel.ShellModel.ZOOM_ACTIVITY: host = self.get_current_activity() if host is not None: host.present() else: self._model.set_zoom_level(level) self._screen.toggle_showing_desktop(True) def toggle_activity_fullscreen(self): if self._model.get_zoom_level() == shellmodel.ShellModel.ZOOM_ACTIVITY: self.get_current_activity().toggle_fullscreen() def activate_previous_activity(self): home_model = self._model.get_home() previous_activity = home_model.get_previous_activity() if previous_activity: self.take_activity_screenshot() previous_activity.get_window().activate( gtk.get_current_event_time()) def activate_next_activity(self): home_model = self._model.get_home() next_activity = home_model.get_next_activity() if next_activity: self.take_activity_screenshot() next_activity.get_window().activate(gtk.get_current_event_time()) def close_current_activity(self): if self._model.get_zoom_level() != shellmodel.ShellModel.ZOOM_ACTIVITY: return home_model = self._model.get_home() active_activity = home_model.get_active_activity() if active_activity.is_journal(): return self.take_activity_screenshot() self.get_current_activity().close() def get_current_activity(self): home_model = self._model.get_home() active_activity = home_model.get_active_activity() return self._get_host_from_activity_model(active_activity) def get_activity(self, activity_id): for host in self._hosts.values(): if host.get_id() == activity_id: return host return None def take_screenshot(self): file_path = os.path.join(tempfile.gettempdir(), '%i' % time.time()) window = gtk.gdk.get_default_root_window() width, height = window.get_size() x_orig, y_orig = window.get_origin() screenshot = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, has_alpha=False, bits_per_sample=8, width=width, height=height) screenshot.get_from_drawable(window, window.get_colormap(), x_orig, y_orig, 0, 0, width, height) screenshot.save(file_path, "png") try: jobject = datastore.create() try: jobject.metadata['title'] = _('Screenshot') jobject.metadata['keep'] = '0' jobject.metadata['buddies'] = '' jobject.metadata['preview'] = '' jobject.metadata['icon-color'] = profile.get_color().to_string() jobject.metadata['mime_type'] = 'image/png' jobject.file_path = file_path datastore.write(jobject) finally: jobject.destroy() del jobject finally: os.remove(file_path) _instance = None def get_instance(): global _instance if not _instance: _instance = Shell() return _instance