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/*
* libjingle
* Copyright 2004--2012, 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 THIRD_PARTY_LIBJINGLE_FILES_TALK_XMPP_PRESENCERECEIVETASK_H_
#define THIRD_PARTY_LIBJINGLE_FILES_TALK_XMPP_PRESENCERECEIVETASK_H_
#include "talk/base/sigslot.h"
#include "talk/xmpp/presencestatus.h"
#include "talk/xmpp/xmpptask.h"
namespace buzz {
// A task to receive presence status callbacks from the XMPP server.
class PresenceReceiveTask : public XmppTask {
public:
// Arguments:
// parent a reference to task interface associated withe the XMPP client.
explicit PresenceReceiveTask(XmppTaskParentInterface* parent);
// Shuts down the thread associated with this task.
virtual ~PresenceReceiveTask();
// Starts pulling queued status messages and dispatching them to the
// PresenceUpdate() callback.
virtual int ProcessStart();
// Slot for presence message callbacks
sigslot::signal1<const PresenceStatus&> PresenceUpdate;
protected:
// Called by the XMPP engine when presence stanzas are received from the
// server.
virtual bool HandleStanza(const XmlElement * stanza);
private:
// Handles presence stanzas by converting the data to PresenceStatus
// objects and passing those along to the SignalStatusUpadate() callback.
void HandlePresence(const Jid& from, const XmlElement * stanza);
// Extracts presence information for the presence stanza sent form the
// server.
static void DecodeStatus(const Jid& from, const XmlElement * stanza,
PresenceStatus* status);
};
} // namespace buzz
#endif // THIRD_PARTY_LIBJINGLE_FILES_TALK_XMPP_PRESENCERECEIVETASK_H_
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