Method: Jabber::Roster::Helper::RosterItem#add_presence

Defined in:
lib/xmpp4r/roster/helper/roster.rb

#add_presence(newpres) ⇒ Object

Add presence and sort presences (unless type is :unavailable or :error)

This overwrites previous stanzas with the same destination JID to keep track of resources. Presence stanzas with type == :unavailable or type == :error will be deleted as this indicates that this resource has gone offline.

If type == :error and the presence’s origin has no specific resource the contact is treated completely offline.



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# File 'lib/xmpp4r/roster/helper/roster.rb', line 453

def add_presence(newpres)
  @presences_lock.synchronize {
    # Delete old presences with the same JID
    @presences.delete_if do |pres|
      pres.from == newpres.from or pres.from.resource.nil?
    end

    if newpres.type == :error and newpres.from.resource.nil?
      # Replace by single error presence
      @presences = [newpres]
    else
      # Add new presence
      @presences.push(newpres)
    end

    @presences.sort!
  }
end