Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdenetwork@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 113 insertions, 0 deletions

diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/xmpp/xmpptask.h b/kopete/protocols/jabber/jingle/libjingle/talk/xmpp/xmpptask.h
new file mode 100644
index 00000000..3b56a1c9
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/xmpp/xmpptask.h
@@ -0,0 +1,113 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _XMPPTASK_H_
+#define _XMPPTASK_H_
+
+#include <string>
+#include <deque>
+#include "talk/base/sigslot.h"
+#include "talk/xmpp/xmppengine.h"
+#include "talk/base/task.h"
+
+namespace buzz {
+
+/////////////////////////////////////////////////////////////////////
+//
+// XMPPTASK
+//
+/////////////////////////////////////////////////////////////////////
+//
+// See Task and XmppClient first.
+//
+// XmppTask is a task that is designed to go underneath XmppClient and be
+// useful there.  It has a way of finding its XmppClient parent so you
+// can have it nested arbitrarily deep under an XmppClient and it can
+// still find the XMPP services.
+//
+// Tasks register themselves to listen to particular kinds of stanzas
+// that are sent out by the client.  Rather than processing stanzas
+// right away, they should decide if they own the sent stanza,
+// and if so, queue it and Wake() the task, or if a stanza does not belong
+// to you, return false right away so the next XmppTask can take a crack.
+// This technique (synchronous recognize, but asynchronous processing)
+// allows you to have arbitrary logic for recognizing stanzas yet still,
+// for example, disconnect a client while processing a stanza -
+// without reentrancy problems.
+//
+/////////////////////////////////////////////////////////////////////
+
+class XmppClient;
+
+class XmppTask :
+  public Task,
+  public XmppStanzaHandler,
+  public sigslot::has_slots<>
+{
+public:
+  XmppTask(Task * parent, XmppEngine::HandlerLevel level = XmppEngine::HL_NONE);
+  virtual ~XmppTask();
+
+  virtual XmppClient * GetClient() const { return client_; }
+  std::string task_id() const { return id_; }
+
+protected:
+  friend class XmppClient;
+  
+  XmppReturnStatus SendStanza(const XmlElement * stanza);
+  XmppReturnStatus SetResult(const std::string & code);
+  XmppReturnStatus SendStanzaError(const XmlElement * element_original,
+                                XmppStanzaError code,
+                                const std::string & text);
+
+  virtual void Stop();
+  virtual bool HandleStanza(const XmlElement * stanza) { return false; }
+  virtual void OnDisconnect();
+  virtual int ProcessReponse() { return STATE_DONE; }
+
+  void QueueStanza(const XmlElement * stanza);
+  const XmlElement * NextStanza();
+
+  bool MatchResponseIq(const XmlElement * stanza, const Jid & to, const std::string & task_id);
+  bool MatchRequestIq(const XmlElement * stanza, const std::string & type, const QName & qn);
+  XmlElement *MakeIqResult(const XmlElement * query);
+  XmlElement *MakeIq(const std::string & type,
+    const Jid & to, const std::string task_id);
+
+private:
+  void StopImpl();
+  
+  XmppClient * client_;
+  std::deque<XmlElement *> stanza_queue_;
+  scoped_ptr<XmlElement> next_stanza_;
+  std::string id_;
+  
+};   
+
+}
+
+#endif