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

199 lines
6.7 KiB
Python

# 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)