sugar-toolkit-gtk3/shell/view/Shell.py

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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
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import gtk
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import gobject
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import wnck
import dbus
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import view.stylesheet
from sugar.graphics import style
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from view.home.HomeWindow import HomeWindow
from sugar.presence import PresenceService
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from view.ActivityHost import ActivityHost
from sugar.activity import ActivityFactory
from sugar.activity import Activity
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from view.frame.Frame import Frame
from view.dconmanager import DCONManager
from _sugar import KeyGrabber
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from _sugar import AudioManager
import sugar
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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()
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self._audio_manager = AudioManager()
self._key_grabber = KeyGrabber()
self._key_grabber.connect('key-pressed',
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self._key_pressed_cb)
self._key_grabber.connect('key-released',
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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._pservice = PresenceService.get_instance()
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#self.start_activity('org.laptop.JournalActivity')
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def _handle_camera_key(self):
if self._current_host:
if self._current_host.execute('camera', []):
return
self.start_activity('org.laptop.CameraActivity')
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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')
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self._key_grabber.grab('F9')
self._key_grabber.grab('F10')
self._key_grabber.grab('F11')
self._key_grabber.grab('F12')
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self._key_grabber.grab('<alt>F5')
self._key_grabber.grab('<alt>F8')
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self._key_grabber.grab('0xDC') # Camera key
self._key_grabber.grab('0xE0') # Overlay key
self._key_grabber.grab('0x93') # Frame key
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self._key_grabber.grab('0x7C') # Power key
self._key_grabber.grab('<alt>Tab')
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# 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':
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self._dcon_manager.set_brightness(0)
elif key == 'F6':
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self._dcon_manager.set_brightness(5)
elif key == 'F7':
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self._dcon_manager.set_brightness(9)
elif key == 'F8':
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self._dcon_manager.set_brightness(15)
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elif key == 'F9':
self._audio_manager.set_volume(0)
elif key == 'F10':
self._audio_manager.set_volume(32)
elif key == 'F11':
self._audio_manager.set_volume(64)
elif key == 'F12':
self._audio_manager.set_volume(100)
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elif key == '<alt>F5':
self._dcon_manager.set_mode(DCONManager.COLOR_MODE)
elif key == '<alt>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()
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elif key == '0x7C': # Power key
self._shutdown()
elif key == '<alt>Tab':
self.set_zoom_level(sugar.ZOOM_HOME)
box = self._home_window.get_home_box()
box.grab_and_rotate()
def _shutdown(self):
bus = dbus.SystemBus()
proxy = bus.get_object('org.freedesktop.Hal',
'/org/freedesktop/Hal/devices/computer')
mgr = dbus.Interface(proxy, 'org.freedesktop.Hal.Device.SystemPowerManagement')
mgr.Shutdown()
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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):
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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_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_mode.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)
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)