event and callback for roster

lib/xmpp-client/client.js

@@ -70,7 +70,9 @@ var Client = function(params, callback) {
 		jabber._debug("[Info] xmpp connection");
 		jabber.presence();
 		jabber.emit('online');
-		jabber.askForRoster();
+		jabber.askForRoster(function(roster) {
+			jabber._debug("ROSTER : "[jabber.color] + JSON.stringify(roster));
+		});
 		if(callback != null) {
 			callback.call(jabber);
 		}
@@ -121,11 +123,6 @@ var Client = function(params, callback) {
 		}
 		query = stanza.getChild('query', 'jabber:iq:version');
 		if(query != null) {
-			/* <query xmlns='jabber:iq:version'>
-			    <name>Exodus</name>
-			    <version>0.7.0.4</version>
-			    <os>Windows-XP 5.01.2600</os>
-			  </query>*/
 			jabber.resultIq(stanza, new xmpp.Element('query', {xmlns:'jabber:iq:version'})
 				.c('name').t('node-xmpp-client').up()
 				.c('version').t('0.0.1').up()
@@ -153,7 +150,7 @@ Client.prototype.message = function(to, message) {
 		t(message));
 };
 
-Client.prototype.askForRoster = function() {
+Client.prototype.askForRoster = function(callback) {
 	var jabber = this;
 	this.iq(new xmpp.Element('query', {xmlns: 'jabber:iq:roster'}), function(iq) {
 		iq.getChild('query', 'jabber:iq:roster').children.forEach(function(child) {
@@ -161,8 +158,10 @@ Client.prototype.askForRoster = function() {
 				name: child.attrs.name,
 				subscription: child.attrs.subscription};
 		});
-		jabber._debug("ROSTER : "[jabber.color] + JSON.stringify(jabber.roster));
-		jabber.emit('roster', iq);
+		if(callback != null) {
+			callback.call(jabber, jabber.roster);
+		}
+		jabber.emit('roster', jabber.roster);
 	});
 };