diff options
Diffstat (limited to 'src/model/homeactivity.py')
| -rw-r--r-- | src/model/homeactivity.py | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/model/homeactivity.py b/src/model/homeactivity.py new file mode 100644 index 0000000..7365271 --- /dev/null +++ b/src/model/homeactivity.py @@ -0,0 +1,215 @@ +# Copyright (C) 2006-2007 Owen Williams. +# +# 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 time +import logging + +import gobject +import dbus + +from sugar.graphics.xocolor import XoColor +from sugar.presence import presenceservice +from sugar import profile + +_SERVICE_NAME = "org.laptop.Activity" +_SERVICE_PATH = "/org/laptop/Activity" +_SERVICE_INTERFACE = "org.laptop.Activity" + +class HomeActivity(gobject.GObject): + """Activity which appears in the "Home View" of the Sugar shell + + This class stores the Sugar Shell's metadata regarding a + given activity/application in the system. It interacts with + the sugar.activity.* modules extensively in order to + accomplish its tasks. + """ + + __gtype_name__ = 'SugarHomeActivity' + + __gproperties__ = { + 'launching' : (bool, None, None, False, + gobject.PARAM_READWRITE), + } + + def __init__(self, activity_info, activity_id): + """Initialise the HomeActivity + + activity_info -- sugar.activity.registry.ActivityInfo instance, + provides the information required to actually + create the new instance. This is, in effect, + the "type" of activity being created. + activity_id -- unique identifier for this instance + of the activity type + """ + gobject.GObject.__init__(self) + + self._window = None + self._xid = None + self._pid = None + self._service = None + self._activity_id = activity_id + self._activity_info = activity_info + self._launch_time = time.time() + self._launching = False + + self._retrieve_service() + + if not self._service: + bus = dbus.SessionBus() + bus.add_signal_receiver(self._name_owner_changed_cb, + signal_name="NameOwnerChanged", + dbus_interface="org.freedesktop.DBus") + + def set_window(self, window): + """An activity is 'launched' once we get its window.""" + if self._window or self._xid: + raise RuntimeError("Activity is already launched!") + if not window: + raise ValueError("window must be valid") + + self._window = window + self._xid = window.get_xid() + self._pid = window.get_pid() + + def get_service(self): + """Get the activity service + + Note that non-native Sugar applications will not have + such a service, so the return value will be None in + those cases. + """ + + return self._service + + def get_title(self): + """Retrieve the application's root window's suggested title""" + if self._window: + return self._window.get_name() + else: + return '' + + def get_icon_path(self): + """Retrieve the activity's icon (file) name""" + if self._activity_info: + return self._activity_info.icon + else: + return None + + def get_icon_color(self): + """Retrieve the appropriate icon colour for this activity + + Uses activity_id to index into the PresenceService's + set of activity colours, if the PresenceService does not + have an entry (implying that this is not a Sugar-shared application) + uses the local user's profile.get_color() to determine the + colour for the icon. + """ + pservice = presenceservice.get_instance() + + # HACK to suppress warning in logs when activity isn't found + # (if it's locally launched and not shared yet) + activity = None + for act in pservice.get_activities(): + if self._activity_id == act.props.id: + activity = act + break + + if activity != None: + return XoColor(activity.props.color) + else: + return profile.get_color() + + def get_activity_id(self): + """Retrieve the "activity_id" passed in to our constructor + + This is a "globally likely unique" identifier generated by + sugar.util.unique_id + """ + return self._activity_id + + def get_xid(self): + """Retrieve the X-windows ID of our root window""" + return self._xid + + def get_window(self): + """Retrieve the X-windows root window of this application + + This was stored by the set_window method, which was + called by HomeModel._add_activity, which was called + via a callback that looks for all 'window-opened' + events. + + HomeModel currently uses a dbus service query on the + activity to determine to which HomeActivity the newly + launched window belongs. + """ + return self._window + + def get_type(self): + """Retrieve the activity bundle id for future reference""" + if self._activity_info: + return self._activity_info.bundle_id + else: + return None + + def get_launch_time(self): + """Return the time at which the activity was first launched + + Format is floating-point time.time() value + (seconds since the epoch) + """ + return self._launch_time + + def get_pid(self): + """Returns the activity's PID""" + return self._pid + + def equals(self, activity): + if self._activity_id and activity.get_activity_id(): + return self._activity_id == activity.get_activity_id() + if self._xid and activity.get_xid(): + return self._xid == activity.get_xid() + return False + + def do_set_property(self, pspec, value): + if pspec.name == 'launching': + self._launching = value + + def do_get_property(self, pspec): + if pspec.name == 'launching': + return self._launching + + def _get_service_name(self): + if self._activity_id: + return _SERVICE_NAME + self._activity_id + else: + return None + + def _retrieve_service(self): + if not self._activity_id: + return + + try: + bus = dbus.SessionBus() + proxy = bus.get_object(self._get_service_name(), + _SERVICE_PATH + "/" + self._activity_id) + self._service = dbus.Interface(proxy, _SERVICE_INTERFACE) + except dbus.DBusException: + self._service = None + + def _name_owner_changed_cb(self, name, old, new): + if name == self._get_service_name(): + self._retrieve_service() |