Add a delegate for incoming/outgoing elements.

src/XMPPConnection.h

@@ -40,6 +40,10 @@
 #ifdef OF_HAVE_OPTIONAL_PROTOCOLS
 @optional
 #endif
+-  (void)connection: (XMPPConnection*)connection
+  didReceiveElement: (OFXMLElement*)element;
+- (void)connection: (XMPPConnection*)connection
+    didSendElement: (OFXMLElement*)element;
 - (void)connectionWasAuthenticated: (XMPPConnection*)connection;
 - (void)connection: (XMPPConnection*)connection
      wasBoundToJID: (XMPPJID*)JID;

src/XMPPConnection.m

@@ -344,7 +344,11 @@
 
 - (void)sendStanza: (OFXMLElement*)element
 {
-	of_log(@"Out: %@", element);
+	if ([delegate respondsToSelector:
+	    @selector(connection:didSendElement:)])
+		[delegate connection: self
+		      didSendElement: element];
+
 	[sock writeString: [element XMLString]];
 }
 
@@ -404,7 +408,10 @@
 	[element setPrefix: @"stream"
 	      forNamespace: XMPP_NS_STREAM];
 
-	of_log(@"In:  %@", element);
+	if ([delegate respondsToSelector:
+	    @selector(connection:didReceiveElement:)])
+		[delegate connection: self
+		   didReceiveElement: element];
 
 	if ([[element namespace] isEqual: XMPP_NS_CLIENT])
 		[self XMPP_handleStanza: element];

tests/test.m

@@ -111,6 +111,18 @@ OF_APPLICATION_DELEGATE(AppDelegate)
 	}
 }
 
+-  (void)connection: (XMPPConnection*)conn
+  didReceiveElement: (OFXMLElement*)element
+{
+	of_log(@"In:  %@", element);
+}
+
+- (void)connection: (XMPPConnection*)conn
+    didSendElement: (OFXMLElement*)element
+{
+	of_log(@"Out: %@", element);
+}
+
 - (void)connectionWasAuthenticated: (XMPPConnection*)conn
 {
 	of_log(@"Auth successful");