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# =XMPP4R - XMPP Library for Ruby
#
# This file's copyright (c) 2009 by Pablo Lorenzzoni <pablo@propus.com.br>
# License:: Ruby's license (see the LICENSE file) or GNU GPL, at your option.
# Website::http://xmpp4r.github.io
module Jabber
class Observable
# Jabber::Observable::Subscriptions - convenience class to deal with
# Presence subscriptions
#
# observable:: points to a Jabber::Observable object
class Subscriptions
def initialize(observable)
@observable = observable
@accept = true
end
# Ask the users specified by jids for authorization (i.e., ask them to add
# you to their contact list), unless already in the contact list.
#
# Because the authorization process depends on the other user accepting your
# request, results are notified to observers of :new_subscription.
def add(*jids)
@observable.contacts(*jids).each do |contact|
next if subscribed_to?(contact)
contact.ask_for_authorization!
end
end
# Remove the jabber users specified by jids from the contact list.
def remove(*jids)
@observable.contacts(*jids).each do |contact|
contact.unsubscribe!
end
end
# Returns true if this Jabber account is subscribed to status updates for
# the jabber user jid, false otherwise.
def subscribed_to?(jid)
@observable.contacts(jid).each do |contact|
return contact.subscribed?
end
end
# Returns true if auto-accept subscriptions is enabled (default), false otherwise.
def accept?
@accept
end
# Change whether or not subscriptions are automatically accepted.
def accept=(accept_status)
@accept = accept_status
end
end # of class Subscription
end # of class Observable
end # of module Jabber
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