Create a Contact object and make any asynchronous method calls necessary to ensure
that all the features specified in features
are ready for use (if they are supported at all).
It is not an error to put features in features
even if the connection manager doesn't support them - users of this method
should have a static list of features they would like to use if possible, and use it for all connection managers.
this |
A connection, which must have the |
id |
A strings representing the desired contact by its identifier in the IM protocol (an XMPP JID, SIP URI, MSN Passport, AOL screen-name etc.) |
features |
An array of features that must be ready for use (if supported) before the callback is called (may be |
callback |
A user callback to call when the contact is ready |
n_features |
The number of features in |
user_data |
Data to pass to the callback |