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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_JINGLE_GLUE_JAVASCRIPT_IQ_REQUEST_H_
#define REMOTING_JINGLE_GLUE_JAVASCRIPT_IQ_REQUEST_H_
#include <map>
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "remoting/jingle_glue/iq_request.h"
#include "remoting/jingle_glue/xmpp_proxy.h"
namespace remoting {
class JavascriptIqRequest;
class JavascriptIqRegistry : public XmppProxy::ResponseCallback {
public:
JavascriptIqRegistry();
virtual ~JavascriptIqRegistry();
// Dispatches the response to the IqRequest callback immediately.
//
// Does not take ownership of stanza.
void DispatchResponse(buzz::XmlElement* stanza);
// Registers |request|, returning the request ID used.
std::string RegisterRequest(JavascriptIqRequest* request);
// Removes all entries in the registry that refer to |request|. Useful when
// |request| is about to be destructed.
void RemoveAllRequests(JavascriptIqRequest* request);
void SetDefaultHandler(JavascriptIqRequest* default_request);
private:
typedef std::map<std::string, JavascriptIqRequest*> IqRequestMap;
// XmppProxy::ResponseCallback interface.
virtual void OnIq(const std::string& response_xml);
IqRequestMap requests_;
int current_id_;
JavascriptIqRequest* default_handler_;
DISALLOW_COPY_AND_ASSIGN(JavascriptIqRegistry);
};
// This call must only be used on the thread it was created on.
class JavascriptIqRequest : public IqRequest {
public:
JavascriptIqRequest(JavascriptIqRegistry* registry,
scoped_refptr<XmppProxy> xmpp_proxy);
virtual ~JavascriptIqRequest();
// Similar to SendIq(), but has 3 major differences:
//
// (1) It does absoluately no error checking. Caller is responsible for
// validity.
// (2) It doesn't add an Iq envelope. Caller is again responsible.
// (3) BecomeDefaultHandler() must have been called.
//
// TODO(ajwong): We need to rationalize the semantics of these two
// APIs. SendRawIq() is a hack for JingleSignalingConnector which
// uses a different memory management convention.
void SendRawIq(buzz::XmlElement* stanza);
// This function is a hack to support SessionStartRequest. It registers the
// current JavascriptIqRequest instance to be the single passthrough filter
// for the associated JavascriptIqRegistry. What this means is that any IQ
// packet that does not match a previous respone packet will be funneled
// through to this JavascriptIqRegistry instance (basically a default
// handler). It also means that the registry will not be tracking any of the
// packets sent from this JavascriptIqRegistry instance.
//
// TODO(ajwong): We need to take a high-level look at IqRequest to understand
// how to make this API cleaner.
void BecomeDefaultHandler();
// IqRequest interface.
virtual void SendIq(const std::string& type, const std::string& addressee,
buzz::XmlElement* iq_body) OVERRIDE;
virtual void set_callback(ReplyCallback* callback) OVERRIDE;
private:
friend class JavascriptIqRegistry;
scoped_ptr<ReplyCallback> callback_;
scoped_refptr<XmppProxy> xmpp_proxy_;
JavascriptIqRegistry* registry_;
bool is_default_handler_;
FRIEND_TEST_ALL_PREFIXES(IqRequestTest, MakeIqStanza);
};
} // namespace remoting
#endif // REMOTING_JINGLE_GLUE_JAVASCRIPT_IQ_REQUEST_H_
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