From ceba84212f030f2126ff7ad953594d164a0d8229 Mon Sep 17 00:00:00 2001
From: Jeremy Lainé <jeremy.laine@m4x.org>
Date: Thu, 4 Mar 2010 19:26:02 +0000
Subject: make it possible to override handling of XML elements

---
 source/QXmppClient.cpp | 17 +++++++++++++++++
 source/QXmppClient.h   |  2 ++
 source/QXmppStream.cpp |  6 +++++-
 3 files changed, 24 insertions(+), 1 deletion(-)

(limited to 'source')

diff --git a/source/QXmppClient.cpp b/source/QXmppClient.cpp
index 9bbc62c0..454302b2 100644
--- a/source/QXmppClient.cpp
+++ b/source/QXmppClient.cpp
@@ -504,3 +504,20 @@ QXmppTransferManager& QXmppClient::getTransferManager()
 {
     return m_stream->getTransferManager();
 }
+
+/// Reimplement in your subclass of QXmppClient if you want to handle
+/// raw XML elements yourself.
+///
+/// WARNING: you can seriously disrupt packet handling when doing this,
+/// so use with care and at your own risk.
+/// 
+/// Return true if you handled the element yourself, or false if
+/// you want to use the default handling for the element.
+///
+/// If you handle the element yourself, QXmpp will do absolutely no
+/// processing itself, so do not expect the usual signals to trigger.
+
+bool QXmppClient::handleStreamElement(const QDomElement &element)
+{
+    return false;
+}
diff --git a/source/QXmppClient.h b/source/QXmppClient.h
index 3eb2f09d..d3af2547 100644
--- a/source/QXmppClient.h
+++ b/source/QXmppClient.h
@@ -194,6 +194,8 @@ public:
 
     QXmppClient::StreamError getXmppStreamError();
 
+    virtual bool handleStreamElement(const QDomElement &element);
+
 public slots:
     void sendPacket(const QXmppPacket&);
     void sendMessage(const QString& bareJid, const QString& message);
diff --git a/source/QXmppStream.cpp b/source/QXmppStream.cpp
index 83ed747d..d843a17d 100644
--- a/source/QXmppStream.cpp
+++ b/source/QXmppStream.cpp
@@ -292,7 +292,11 @@ void QXmppStream::parser(const QByteArray& data)
 
             QString ns = nodeRecv.namespaceURI();
             log("Namespace: " + ns + " Tag: " + nodeRecv.tagName() );
-            if(ns == ns_stream && nodeRecv.tagName() == "features")
+            if(m_client->handleStreamElement(nodeRecv))
+            {
+                // already handled by client, do nothing
+            }
+            else if(ns == ns_stream && nodeRecv.tagName() == "features")
             {
                 bool nonSaslAvailable = nodeRecv.firstChildElement("auth").
                                          namespaceURI() == ns_authFeature;
-- 
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