91 lines
3.3 KiB
Python
91 lines
3.3 KiB
Python
# Copyright (C) 2006-2007 Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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from sugar.presence import presenceservice
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class ActivityHandle(object):
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"""Data structure storing simple activity metadata"""
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def __init__(
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self, activity_id=None, pservice_id=None,
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object_id=None, uri=None
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):
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"""Initialise the handle from activity_id
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activity_id -- unique id for the activity to be
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created
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pservice_id -- identity of the sharing service
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for this activity in the PresenceService
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object_id -- identity of the journal object
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associated with the activity. It was used by
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the journal prototype implementation, might
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change when we do the real one.
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When you resume an activity from the journal
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the object_id will be passed in. It's optional
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since new activities does not have an
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associated object (yet).
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XXX Not clear how this relates to the activity
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id yet, i.e. not sure we really need both. TBF
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uri -- URI associated with the activity. Used when
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opening an external file or resource in the
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activity, rather than a journal object
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(downloads stored on the file system for
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example or web pages)
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"""
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self.activity_id = activity_id
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self.pservice_id = pservice_id
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self.object_id = object_id
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self.uri = uri
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def get_shared_activity(self):
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"""Retrieve the shared instance of this activity
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Uses the PresenceService to find any existing dbus
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service which provides sharing mechanisms for this
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activity.
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"""
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if self.pservice_id:
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pservice = presenceservice.get_instance()
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return pservice.get_activity(self.pservice_id)
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else:
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return None
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def get_dict(self):
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"""Retrieve our settings as a dictionary"""
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result = { }
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if self.activity_id:
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result['activity_id'] = str(self.activity_id)
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if self.pservice_id:
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result['pservice_id'] = str(self.pservice_id)
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if self.object_id:
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result['object_id'] = str(self.object_id)
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if self.uri:
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result['uri'] = str(self.uri)
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return result
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def create_from_dict(handle_dict):
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"""Create a handle from a dictionary of parameters"""
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result = ActivityHandle(
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handle_dict['activity_id'],
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pservice_id = handle_dict.get( 'pservice_id' ),
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object_id = handle_dict.get('object_id'),
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uri = handle_dict.get('uri'),
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)
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return result
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