An interface for protocols where it might be possible to set the user's presence, and the supported presence types can be predicted before connecting.

The properties on this interface SHOULD be cached in the .manager file, in the [Protocol proto] group. For each status s in Statuses, that group should contain a key of the form status-s whose value is the Connection_Presence_Type as an ASCII decimal integer, followed by a space-separated sequence of tokens from the following set:

settable

If present, the user can set this status on themselves using SetPresence; this corresponds to May_Set_On_Self in the Simple_Status_Spec struct.

message

If present, the user can set a non-empty message for this status; this corresponds to Can_Have_Message in the Simple_Status_Spec struct.

Unrecognised tokens MUST be ignored.

For instance, an XMPP connection manager might have this .manager file:

[Protocol jabber]
Interfaces=org.freedesktop.Telepathy.Protocol.Interface.Presence;
param-account=s required
param-password=s required
status-offline=1
status-unknown=7
status-error=8
status-hidden=5 settable message
status-xa=4 settable message
status-away=3 settable message
status-dnd=6 settable message
status-available=2 settable message
status-chat=2 settable message

which corresponds to these property values (using a Python-like syntax):

Statuses = {
    'offline': (OFFLINE, False, False),
    'unknown': (UNKNOWN, False, False),
    'error': (ERROR, False, False),
    'hidden': (HIDDEN, True, True),
    'xa': (EXTENDED_AWAY, True, True),
    'away': (AWAY, True, True),
    'dnd': (BUSY, True, True),
    'available': (AVAILABLE, True, True),
    'chat': (AVAILABLE, True, True),
}