a1ef835a37
When an external (or internal) event may cause the order of the cache to be modified, or new elements to be added, schedule it for a rebuild. Otherwise, don’t, and only rebuild it when refreshing (that should improve refresh speed a lot). Also, if the position in the roster is further than the total size of the roster, go back to the top instead of displaying an empty window with “+++”.
300 lines
9.8 KiB
Python
300 lines
9.8 KiB
Python
# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
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#
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# This file is part of Poezio.
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#
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# Poezio is free software: you can redistribute it and/or modify
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# it under the terms of the zlib license. See the COPYING file.
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"""
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Defines the Roster and RosterGroup classes
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"""
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import logging
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log = logging.getLogger(__name__)
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from config import config
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from contact import Contact
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from roster_sorting import SORTING_METHODS, GROUP_SORTING_METHODS
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from os import path as p
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from datetime import datetime
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from common import safeJID
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from sleekxmpp import JID
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from sleekxmpp.exceptions import IqError, IqTimeout
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class Roster(object):
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"""
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The proxy class to get the roster from SleekXMPP.
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Caches Contact and RosterGroup objects.
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"""
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def __init__(self):
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"""
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node: the RosterSingle from SleekXMPP
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"""
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self.__node = None
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self.contact_filter = None # A tuple(function, *args)
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# function to filter contacts,
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# on search, for example
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self.folded_groups = set(config.get(
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'folded_roster_groups',
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'',
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section='var').split(':'))
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self.groups = {}
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self.contacts = {}
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# Used for caching roster infos
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self.last_built = datetime.now()
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self.last_modified = datetime.now()
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def modified(self):
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self.last_modified = datetime.now()
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@property
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def needs_rebuild(self):
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return self.last_modified >= self.last_built
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def __getitem__(self, key):
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"""Get a Contact from his bare JID"""
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key = safeJID(key).bare
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if key in self.contacts and self.contacts[key] is not None:
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return self.contacts[key]
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if key in self.jids():
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contact = Contact(self.__node[key])
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self.contacts[key] = contact
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return contact
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def __setitem__(self, key, value):
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"""Set the a Contact value for the bare jid key"""
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self.contacts[key] = value
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def __delitem__(self, jid):
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"""Remove a contact from the roster"""
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jid = safeJID(jid).bare
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contact = self[jid]
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if not contact:
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return
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for group in list(self.groups.values()):
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group.remove(contact)
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if not group:
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del self.groups[group.name]
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del self.contacts[contact.bare_jid]
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if jid in self.jids():
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try:
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self.__node[jid].send_presence(ptype='unavailable')
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self.__node.remove(jid)
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except (IqError, IqTimeout):
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import traceback
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log.debug('IqError when removing %s:\n%s', jid, traceback.format_exc())
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def __iter__(self):
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"""Iterate over the jids of the contacts"""
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return iter(self.contacts.values())
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def __contains__(self, key):
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"""True if the bare jid is in the roster, false otherwise"""
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return safeJID(key).bare in self.jids()
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@property
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def jid(self):
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"""Our JID"""
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return self.__node.jid
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def set_node(self, value):
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"""Set the SleekXMPP RosterSingle for our roster"""
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self.__node = value
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def get_groups(self, sort=''):
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"""Return a list of the RosterGroups"""
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group_list = sorted(
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filter(
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lambda x: bool(x),
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self.groups.values()
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),
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key=lambda x: x.name.lower() if x.name else ''
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)
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log.debug("Current groups: %s", group_list)
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for sorting in sort.split(':'):
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if sorting == 'reverse':
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group_list = list(reversed(group_list))
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else:
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method = GROUP_SORTING_METHODS.get(sorting, lambda x: 0)
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group_list = sorted(group_list, key=method)
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return group_list
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def get_group(self, name):
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"""Return a group or create it if not present"""
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if name in self.groups:
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return self.groups[name]
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self.groups[name] = RosterGroup(name, folded=name in self.folded_groups)
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def add(self, jid):
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"""Subscribe to a jid"""
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self.__node.subscribe(jid)
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def jids(self):
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"""List of the contact JIDS"""
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return [key for key in self.__node.keys() if key != self.jid]
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def get_contacts(self):
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"""
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Return a list of all the contacts
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"""
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return [self[jid] for jid in self.jids()]
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def save_to_config_file(self):
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"""
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Save various information to the config file
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e.g. the folded groups
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"""
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folded_groups = ':'.join([group.name for group in self.groups.values()\
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if group.folded])
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log.debug('folded:%s\n' %folded_groups)
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return config.silent_set('folded_roster_groups', folded_groups, 'var')
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def get_nb_connected_contacts(self):
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"""
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Get the number of connected contacts
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"""
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n = 0
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for contact in self:
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if len(contact):
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n += 1
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return n
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def update_contact_groups(self, contact):
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"""Regenerate the RosterGroups when receiving a contact update"""
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if not isinstance(contact, Contact):
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contact = self[contact]
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if not contact:
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return
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for name, group in self.groups.items():
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if name in contact.groups and contact not in group:
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group.add(contact)
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elif contact in group and name not in contact.groups:
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group.remove(contact)
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for group in contact.groups:
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if not group in self.groups:
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self.groups[group] = RosterGroup(group, folded=group in self.folded_groups)
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self.groups[group].add(contact)
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def __len__(self):
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"""
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Return the number of line that would be printed
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for the whole roster
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"""
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length = 0
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show_offline = config.get('roster_show_offline', 'false') == 'true'
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for group in self.groups.values():
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if not show_offline and group.get_nb_connected_contacts() == 0:
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continue
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before = length
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if not group.name in self.folded_groups:
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for contact in group.get_contacts(self.contact_filter):
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# We do not count the offline contacts (depending on config)
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if not show_offline and\
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len(contact) == 0:
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continue
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length += 1 # One for the contact's line
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if not contact.folded(group.name):
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# One for each resource, if the contact is unfolded
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length += len(contact)
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if not self.contact_filter or before != length:
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length += 1 # One for the group's line itself if needed
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return length
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def __repr__(self):
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ret = '== Roster:\nContacts:\n'
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for contact in self.contacts.values():
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ret += '%s\n' % (contact,)
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ret += 'Groups\n'
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for group in self.groups:
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ret += '%s\n' % (group,)
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return ret + '\n'
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def export(self, path):
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"""Export a list of bare jids to a given file"""
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if p.isfile(path):
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return
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try:
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f = open(path, 'w+', encoding='utf-8')
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f.writelines([i + "\n" for i in self.contacts])
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f.close()
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return True
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except IOError:
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return
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class RosterGroup(object):
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"""
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A RosterGroup is a group containing contacts
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It can be Friends/Family etc, but also can be
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Online/Offline or whatever
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"""
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def __init__(self, name, contacts=None, folded=False):
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if not contacts:
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contacts = []
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self.contacts = set(contacts)
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self.name = name if name is not None else ''
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self.folded = folded # if the group content is to be shown
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def __iter__(self):
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"""Iterate over the contacts"""
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return iter(self.contacts)
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def __repr__(self):
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return '<Roster_group: %s; %s>' % (self.name, self.contacts)
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def __len__(self):
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"""Number of contacts in the group"""
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return len(self.contacts)
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def __contains__(self, contact):
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"""
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Return a bool, telling if the contact is in the group
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"""
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return contact in self.contacts
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def add(self, contact):
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"""Add a contact to the group"""
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self.contacts.add(contact)
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def remove(self, contact):
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"""Remove a contact from the group if present"""
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if contact in self.contacts:
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self.contacts.remove(contact)
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def get_contacts(self, contact_filter=None, sort=''):
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"""Return the group contacts, filtered and sorted"""
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contact_list = self.contacts.copy() if not contact_filter\
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else [contact for contact in self.contacts.copy() if contact_filter[0](contact, contact_filter[1])]
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contact_list = sorted(contact_list, key=SORTING_METHODS['name'])
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for sorting in sort.split(':'):
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if sorting == 'reverse':
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contact_list = list(reversed(contact_list))
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else:
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method = SORTING_METHODS.get(sorting, lambda x: 0)
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contact_list = sorted(contact_list, key=method)
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return contact_list
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def toggle_folded(self):
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"""Fold/unfold the group in the roster"""
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self.folded = not self.folded
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if self.folded:
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if self.name not in roster.folded_groups:
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roster.folded_groups.add(self.name)
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else:
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if self.name in roster.folded_groups:
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roster.folded_groups.remove(self.name)
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def get_nb_connected_contacts(self):
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"""Return the number of connected contacts"""
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return len([1 for contact in self.contacts if len(contact)])
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# Shared roster object
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roster = Roster()
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