Revert of Remove webrtc/libjingle/{xmllite,xmpp}

webrtc/libjingle/xmpp/hangoutpubsubclient.h

Index: webrtc/libjingle/xmpp/hangoutpubsubclient.h
diff --git a/webrtc/libjingle/xmpp/hangoutpubsubclient.h b/webrtc/libjingle/xmpp/hangoutpubsubclient.h
new file mode 100644
index 0000000000000000000000000000000000000000..fecc727604f1d694a50351d48f9332cac1f4c98b
--- /dev/null
+++ b/webrtc/libjingle/xmpp/hangoutpubsubclient.h
@@ -0,0 +1,178 @@
+/*
+ *  Copyright 2011 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_LIBJINGLE_XMPP_HANGOUTPUBSUBCLIENT_H_
+#define WEBRTC_LIBJINGLE_XMPP_HANGOUTPUBSUBCLIENT_H_
+
+#include <map>
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "webrtc/libjingle/xmpp/jid.h"
+#include "webrtc/libjingle/xmpp/pubsubclient.h"
+#include "webrtc/libjingle/xmpp/pubsubstateclient.h"
+#include "webrtc/base/sigslot.h"
+#include "webrtc/base/sigslotrepeater.h"
+
+// Gives a high-level API for MUC call PubSub needs such as
+// presenter state, recording state, mute state, and remote mute.
+
+namespace buzz {
+
+class Jid;
+class XmlElement;
+class XmppTaskParentInterface;
+
+// A client tied to a specific MUC jid and local nick.  Provides ways
+// to get updates and publish state and events.  Must call
+// RequestAll() to start getting updates.
+class HangoutPubSubClient : public sigslot::has_slots<> {
+ public:
+  HangoutPubSubClient(XmppTaskParentInterface* parent,
+                      const Jid& mucjid,
+                      const std::string& nick);
+  ~HangoutPubSubClient();
+  const Jid& mucjid() const { return mucjid_; }
+  const std::string& nick() const { return nick_; }
+
+  // Requests all of the different states and subscribes for updates.
+  // Responses and updates will be signalled via the various signals.
+  void RequestAll();
+  // Signal (nick, was_presenting, is_presenting)
+  sigslot::signal3<const std::string&, bool, bool> SignalPresenterStateChange;
+  // Signal (nick, was_muted, is_muted)
+  sigslot::signal3<const std::string&, bool, bool> SignalAudioMuteStateChange;
+  // Signal (nick, was_muted, is_muted)
+  sigslot::signal3<const std::string&, bool, bool> SignalVideoMuteStateChange;
+  // Signal (nick, was_paused, is_paused)
+  sigslot::signal3<const std::string&, bool, bool> SignalVideoPauseStateChange;
+  // Signal (nick, was_recording, is_recording)
+  sigslot::signal3<const std::string&, bool, bool> SignalRecordingStateChange;
+  // Signal (mutee_nick, muter_nick, should_mute_locally)
+  sigslot::signal3<const std::string&,
+                   const std::string&,
+                   bool> SignalRemoteMute;
+  // Signal (blockee_nick, blocker_nick)
+  sigslot::signal2<const std::string&, const std::string&> SignalMediaBlock;
+
+  // Signal (node, error stanza)
+  sigslot::signal2<const std::string&, const XmlElement*> SignalRequestError;
+
+  // On each of these, provide a task_id_out to get the task_id, which
+  // can be correlated to the error and result signals.
+  void PublishPresenterState(
+      bool presenting, std::string* task_id_out = NULL);
+  void PublishAudioMuteState(
+      bool muted, std::string* task_id_out = NULL);
+  void PublishVideoMuteState(
+      bool muted, std::string* task_id_out = NULL);
+  void PublishVideoPauseState(
+      bool paused, std::string* task_id_out = NULL);
+  void PublishRecordingState(
+      bool recording, std::string* task_id_out = NULL);
+  void RemoteMute(
+      const std::string& mutee_nick, std::string* task_id_out = NULL);
+  void BlockMedia(
+      const std::string& blockee_nick, std::string* task_id_out = NULL);
+
+  // Signal task_id
+  sigslot::signal1<const std::string&> SignalPublishAudioMuteResult;
+  sigslot::signal1<const std::string&> SignalPublishVideoMuteResult;
+  sigslot::signal1<const std::string&> SignalPublishVideoPauseResult;
+  sigslot::signal1<const std::string&> SignalPublishPresenterResult;
+  sigslot::signal1<const std::string&> SignalPublishRecordingResult;
+  // Signal (task_id, mutee_nick)
+  sigslot::signal2<const std::string&,
+                   const std::string&> SignalRemoteMuteResult;
+  // Signal (task_id, blockee_nick)
+  sigslot::signal2<const std::string&,
+                   const std::string&> SignalMediaBlockResult;
+
+  // Signal (task_id, error stanza)
+  sigslot::signal2<const std::string&,
+                   const XmlElement*> SignalPublishAudioMuteError;
+  sigslot::signal2<const std::string&,
+                   const XmlElement*> SignalPublishVideoMuteError;
+  sigslot::signal2<const std::string&,
+                   const XmlElement*> SignalPublishVideoPauseError;
+  sigslot::signal2<const std::string&,
+                   const XmlElement*> SignalPublishPresenterError;
+  sigslot::signal2<const std::string&,
+                   const XmlElement*> SignalPublishRecordingError;
+  sigslot::signal2<const std::string&,
+                   const XmlElement*> SignalPublishMediaBlockError;
+  // Signal (task_id, mutee_nick, error stanza)
+  sigslot::signal3<const std::string&,
+                   const std::string&,
+                   const XmlElement*> SignalRemoteMuteError;
+  // Signal (task_id, blockee_nick, error stanza)
+  sigslot::signal3<const std::string&,
+                   const std::string&,
+                   const XmlElement*> SignalMediaBlockError;
+
+
+ private:
+  void OnPresenterRequestError(PubSubClient* client,
+                               const XmlElement* stanza);
+  void OnMediaRequestError(PubSubClient* client,
+                           const XmlElement* stanza);
+
+  void OnPresenterStateChange(const PubSubStateChange<bool>& change);
+  void OnPresenterPublishResult(const std::string& task_id,
+                               const XmlElement* item);
+  void OnPresenterPublishError(const std::string& task_id,
+                               const XmlElement* item,
+                               const XmlElement* stanza);
+  void OnAudioMuteStateChange(const PubSubStateChange<bool>& change);
+  void OnAudioMutePublishResult(const std::string& task_id,
+                               const XmlElement* item);
+  void OnAudioMutePublishError(const std::string& task_id,
+                               const XmlElement* item,
+                               const XmlElement* stanza);
+  void OnVideoMuteStateChange(const PubSubStateChange<bool>& change);
+  void OnVideoMutePublishResult(const std::string& task_id,
+                               const XmlElement* item);
+  void OnVideoMutePublishError(const std::string& task_id,
+                               const XmlElement* item,
+                               const XmlElement* stanza);
+  void OnVideoPauseStateChange(const PubSubStateChange<bool>& change);
+  void OnVideoPausePublishResult(const std::string& task_id,
+                               const XmlElement* item);
+  void OnVideoPausePublishError(const std::string& task_id,
+                               const XmlElement* item,
+                               const XmlElement* stanza);
+  void OnRecordingStateChange(const PubSubStateChange<bool>& change);
+  void OnRecordingPublishResult(const std::string& task_id,
+                               const XmlElement* item);
+  void OnRecordingPublishError(const std::string& task_id,
+                               const XmlElement* item,
+                               const XmlElement* stanza);
+  void OnMediaBlockStateChange(const PubSubStateChange<bool>& change);
+  void OnMediaBlockPublishResult(const std::string& task_id,
+                                 const XmlElement* item);
+  void OnMediaBlockPublishError(const std::string& task_id,
+                                const XmlElement* item,
+                                const XmlElement* stanza);
+  Jid mucjid_;
+  std::string nick_;
+  std::unique_ptr<PubSubClient> media_client_;
+  std::unique_ptr<PubSubClient> presenter_client_;
+  std::unique_ptr<PubSubStateClient<bool> > presenter_state_client_;
+  std::unique_ptr<PubSubStateClient<bool> > audio_mute_state_client_;
+  std::unique_ptr<PubSubStateClient<bool> > video_mute_state_client_;
+  std::unique_ptr<PubSubStateClient<bool> > video_pause_state_client_;
+  std::unique_ptr<PubSubStateClient<bool> > recording_state_client_;
+  std::unique_ptr<PubSubStateClient<bool> > media_block_state_client_;
+};
+
+}  // namespace buzz
+
+#endif  // WEBRTC_LIBJINGLE_XMPP_HANGOUTPUBSUBCLIENT_H_