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
import sugar
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class Shell(gobject.GObject):
__gsignals__ = {
'activity-opened': (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE, ([gobject.TYPE_PYOBJECT])),
'activity-changed': (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE, ([gobject.TYPE_PYOBJECT])),
'activity-closed': (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE, ([gobject.TYPE_PYOBJECT]))
}
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.__global_key_pressed_cb)
self._key_grabber.connect('key-released',
self.__global_key_released_cb)
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
# For non-OLPC machines
self._key_grabber.grab('<shft><alt>F9')
self._key_grabber.grab('<shft><alt>F10')
self._home_window = HomeWindow(self)
self._home_window.show()
self.set_zoom_level(sugar.ZOOM_HOME)
self._screen.connect('window-opened', self.__window_opened_cb)
self._screen.connect('window-closed', self.__window_closed_cb)
self._screen.connect('active-window-changed',
self.__active_window_changed_cb)
self._frame = Frame(self)
self._frame.show_and_hide(3)
def _open_terminal_cb(self):
self.start_activity('org.sugar.Terminal')
return False
def __global_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
pass
elif key == '0xE0': # Overlay key
self.toggle_chat_visibility()
elif key == '0x93': # Frame key
self._frame.notify_key_press()
def __global_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 __window_opened_cb(self, screen, window):
logging.debug('Shell.__window_opened_cb')
if window.get_window_type() == wnck.WINDOW_NORMAL:
try:
activity_host = ActivityHost(self.get_model(), window)
except dbus.DBusException:
logging.debug('Shell.__window_opened_cb: opened unknown window ' +
window.get_name() + ' with xid ' +
str(window.get_xid()))
return
self._hosts[activity_host.get_xid()] = activity_host
self.emit('activity-opened', activity_host)
def __active_window_changed_cb(self, screen):
logging.debug('Shell.__active_window_changed_cb')
window = screen.get_active_window()
if not window or window.get_window_type() != wnck.WINDOW_NORMAL:
return
if not self._hosts.has_key(window.get_xid()):
return
activity_host = self._hosts[window.get_xid()]
current = self._model.get_current_activity()
if activity_host.get_id() == current:
return
self._set_current_activity(activity_host)
def __window_closed_cb(self, screen, window):
logging.debug('Shell.__window_closed_cb')
if window.get_window_type() != wnck.WINDOW_NORMAL:
return
if not self._hosts.has_key(window.get_xid()):
return
host = self._hosts[window.get_xid()]
host.destroy()
self.emit('activity-closed', host)
del self._hosts[window.get_xid()]
if len(self._hosts) == 0:
self._set_current_activity(None)
def _set_current_activity(self, host):
if host:
self._model.set_current_activity(host.get_id())
else:
self._model.set_current_activity(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.emit('activity-changed', host)
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:
activity = ActivityFactory.create(bundle_id)
activity.join(activity_ps.object_path())
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):
activity_id = self._model.get_current_activity()
if activity_id:
return self._get_activity(activity_id)
else:
return None
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)