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

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import gtk
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import gobject
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import wnck
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from sugar.canvas.Grid import Grid
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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
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from globalkeys import KeyGrabber
import sugar
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class Shell(gobject.GObject):
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__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):
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gobject.GObject.__init__(self)
self._model = model
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self._hosts = {}
self._screen = wnck.screen_get_default()
self._grid = Grid()
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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)
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self._key_grabber.grab('F1')
self._key_grabber.grab('F2')
self._key_grabber.grab('F3')
self._key_grabber.grab('F4')
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self._key_grabber.grab('F5')
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self._key_grabber.grab('F6')
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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)
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def __global_key_pressed_cb(self, grabber, key):
if key == 'F1':
self.set_zoom_level(sugar.ZOOM_ACTIVITY)
elif key == 'F2':
self.set_zoom_level(sugar.ZOOM_HOME)
elif key == 'F3':
self.set_zoom_level(sugar.ZOOM_FRIENDS)
elif key == 'F4':
self.set_zoom_level(sugar.ZOOM_MESH)
elif key == 'F5':
self._frame.notify_key_press()
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elif key == 'F6':
self.start_activity('org.sugar.Terminal')
def __global_key_released_cb(self, grabber, key):
if key == 'F5':
self._frame.notify_key_release()
def __window_opened_cb(self, screen, window):
if window.get_window_type() == wnck.WINDOW_NORMAL:
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activity_host = ActivityHost(self, window)
self._hosts[activity_host.get_xid()] = activity_host
self.emit('activity-opened', activity_host)
def __active_window_changed_cb(self, screen):
window = screen.get_active_window()
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if window == None:
self._model.set_current_activity(None)
self.emit('activity-changed', None)
elif window.get_window_type() == wnck.WINDOW_NORMAL:
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activity_host = self._hosts[window.get_xid()]
current = self._model.get_current_activity()
if activity_host.get_id() == current:
return
self._model.set_current_activity(activity_host.get_id())
self.emit('activity-changed', activity_host)
def __window_closed_cb(self, screen, window):
if window.get_window_type() == wnck.WINDOW_NORMAL:
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if self._hosts.has_key(window.get_xid()):
host = self._hosts[window.get_xid()]
self.emit('activity-closed', host)
del self._hosts[window.get_xid()]
def get_model(self):
return self._model
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def get_grid(self):
return self._grid
def join_activity(self, bundle_id, activity_id):
pservice = PresenceService.get_instance()
activity = self._model.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):
activity = ActivityFactory.create(activity_type)
activity.execute('test', [])
return activity
def set_zoom_level(self, level):
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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)
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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