1 files changed, 208 insertions, 2 deletions
diff --git a/indra/newview/llparticipantlist.cpp b/indra/newview/llparticipantlist.cpp
index 026be882ed..53f92f7ad1 100644
--- a/indra/newview/llparticipantlist.cpp
+++ b/indra/newview/llparticipantlist.cpp
@@ -50,6 +50,145 @@
 
 static const LLAvatarItemAgentOnTopComparator AGENT_ON_TOP_NAME_COMPARATOR;
 
+// See EXT-4301.
+/**
+ * class LLAvalineUpdater - observe the list of voice participants in session and check
+ *  presence of Avaline Callers among them.
+ *
+ * LLAvalineUpdater is a LLVoiceClientParticipantObserver. It provides two kinds of validation:
+ *	- whether Avaline caller presence among participants;
+ *	- whether watched Avaline caller still exists in voice channel.
+ * Both validations have callbacks which will notify subscriber if any of event occur.
+ *
+ * @see findAvalineCaller()
+ * @see checkIfAvalineCallersExist()
+ */
+class LLAvalineUpdater : public LLVoiceClientParticipantObserver
+{
+public:
+	typedef boost::function<void(const LLUUID& speaker_id)> process_avaline_callback_t;
+
+	LLAvalineUpdater(process_avaline_callback_t found_cb, process_avaline_callback_t removed_cb)
+		: mAvalineFoundCallback(found_cb)
+		, mAvalineRemovedCallback(removed_cb)
+	{
+		LLVoiceClient::getInstance()->addObserver(this);
+	}
+	~LLAvalineUpdater()
+	{
+		if (LLVoiceClient::instanceExists())
+		{
+			LLVoiceClient::getInstance()->removeObserver(this);
+		}
+	}
+
+	/**
+	 * Adds UUID of Avaline caller to watch.
+	 *
+	 * @see checkIfAvalineCallersExist().
+	 */
+	void watchAvalineCaller(const LLUUID& avaline_caller_id)
+	{
+		mAvalineCallers.insert(avaline_caller_id);
+	}
+
+	void onChange()
+	{
+		uuid_set_t participant_uuids;
+		LLVoiceClient::getInstance()->getParticipantsUUIDSet(participant_uuids);
+
+
+		// check whether Avaline caller exists among voice participants
+		// and notify Participant List
+		findAvalineCaller(participant_uuids);
+
+		// check whether watched Avaline callers still present among voice participant
+		// and remove if absents.
+		checkIfAvalineCallersExist(participant_uuids);
+	}
+
+private:
+	typedef std::set<LLUUID> uuid_set_t;
+
+	/**
+	 * Finds Avaline callers among voice participants and calls mAvalineFoundCallback.
+	 *
+	 * When Avatar is in group call with Avaline caller and then ends call Avaline caller stays
+	 * in Group Chat floater (exists in LLSpeakerMgr). If Avatar starts call with that group again
+	 * Avaline caller is added to voice channel AFTER Avatar is connected to group call.
+	 * But Voice Control Panel (VCP) is filled from session LLSpeakerMgr and there is no information
+	 * if a speaker is Avaline caller.
+	 *
+	 * In this case this speaker is created as avatar and will be recreated when it appears in
+	 * Avatar's Voice session.
+	 *
+	 * @see LLParticipantList::onAvalineCallerFound()
+	 */
+	void findAvalineCaller(const uuid_set_t& participant_uuids)
+	{
+		uuid_set_t::const_iterator it = participant_uuids.begin(), it_end = participant_uuids.end();
+
+		for(; it != it_end; ++it)
+		{
+			const LLUUID& participant_id = *it;
+			if (!LLVoiceClient::getInstance()->isParticipantAvatar(participant_id))
+			{
+				LL_DEBUGS("Avaline") << "Avaline caller found among voice participants: " << participant_id << LL_ENDL;
+
+				if (mAvalineFoundCallback)
+				{
+					mAvalineFoundCallback(participant_id);
+				}
+			}
+		}
+	}
+
+	/**
+	 * Finds Avaline callers which are not anymore among voice participants and calls mAvalineRemovedCallback.
+	 *
+	 * The problem is when Avaline caller ends a call it is removed from Voice Client session but
+	 * still exists in LLSpeakerMgr. Server does not send such information.
+	 * This method implements a HUCK to notify subscribers that watched Avaline callers by class
+	 * are not anymore in the call.
+	 *
+	 * @see LLParticipantList::onAvalineCallerRemoved()
+	 */
+	void checkIfAvalineCallersExist(const uuid_set_t& participant_uuids)
+	{
+		uuid_set_t::iterator it = mAvalineCallers.begin();
+		uuid_set_t::const_iterator participants_it_end = participant_uuids.end();
+
+		while (it != mAvalineCallers.end())
+		{
+			const LLUUID participant_id = *it;
+			LL_DEBUGS("Avaline") << "Check avaline caller: " << participant_id << LL_ENDL;
+			bool not_found = participant_uuids.find(participant_id) == participants_it_end;
+			if (not_found)
+			{
+				LL_DEBUGS("Avaline") << "Watched Avaline caller is not found among voice participants: " << participant_id << LL_ENDL;
+
+				// notify Participant List
+				if (mAvalineRemovedCallback)
+				{
+					mAvalineRemovedCallback(participant_id);
+				}
+
+				// remove from the watch list
+				mAvalineCallers.erase(it++);
+			}
+			else
+			{
+				++it;
+			}
+		}
+	}
+
+	process_avaline_callback_t mAvalineFoundCallback;
+	process_avaline_callback_t mAvalineRemovedCallback;
+
+	uuid_set_t mAvalineCallers;
+};
+
 LLParticipantList::LLParticipantList(LLSpeakerMgr* data_source, LLAvatarList* avatar_list,  bool use_context_menu/* = true*/,
 		bool exclude_agent /*= true*/, bool can_toggle_icons /*= true*/):
 	mSpeakerMgr(data_source),
@@ -59,6 +198,9 @@ LLParticipantList::LLParticipantList(LLSpeakerMgr* data_source, LLAvatarList* av
 ,	mExcludeAgent(exclude_agent)
 ,	mValidateSpeakerCallback(NULL)
 {
+	mAvalineUpdater = new LLAvalineUpdater(boost::bind(&LLParticipantList::onAvalineCallerFound, this, _1),
+		boost::bind(&LLParticipantList::onAvalineCallerRemoved, this, _1));
+
 	mSpeakerAddListener = new SpeakerAddListener(*this);
 	mSpeakerRemoveListener = new SpeakerRemoveListener(*this);
 	mSpeakerClearListener = new SpeakerClearListener(*this);
@@ -137,6 +279,9 @@ LLParticipantList::~LLParticipantList()
 	}
 
 	mAvatarList->setContextMenu(NULL);
+	mAvatarList->setComparator(NULL);
+
+	delete mAvalineUpdater;
 }
 
 void LLParticipantList::setSpeakingIndicatorsVisible(BOOL visible)
@@ -210,6 +355,55 @@ void LLParticipantList::onAvatarListRefreshed(LLUICtrl* ctrl, const LLSD& param)
 	}
 }
 
+/*
+Seems this method is not necessary after onAvalineCallerRemoved was implemented;
+
+It does nothing because list item is always created with correct class type for Avaline caller.
+For now Avaline Caller is removed from the LLSpeakerMgr List when it is removed from the Voice Client
+session.
+This happens in two cases: if Avaline Caller ends call itself or if Resident ends group call.
+
+Probably Avaline caller should be removed from the LLSpeakerMgr list ONLY if it ends call itself.
+Asked in EXT-4301.
+*/
+void LLParticipantList::onAvalineCallerFound(const LLUUID& participant_id)
+{
+	LLPanel* item = mAvatarList->getItemByValue(participant_id);
+
+	if (NULL == item)
+	{
+		LL_WARNS("Avaline") << "Something wrong. Unable to find item for: " << participant_id << LL_ENDL;
+		return;
+	}
+
+	if (typeid(*item) == typeid(LLAvalineListItem))
+	{
+		LL_DEBUGS("Avaline") << "Avaline caller has already correct class type for: " << participant_id << LL_ENDL;
+		// item representing an Avaline caller has a correct type already.
+		return;
+	}
+
+	LL_DEBUGS("Avaline") << "remove item from the list and re-add it: " << participant_id << LL_ENDL;
+
+	// remove UUID from LLAvatarList::mIDs to be able add it again.
+	uuid_vec_t& ids = mAvatarList->getIDs();
+	uuid_vec_t::iterator pos = std::find(ids.begin(), ids.end(), participant_id);
+	ids.erase(pos);
+
+	// remove item directly
+	mAvatarList->removeItem(item);
+
+	// re-add avaline caller with a correct class instance.
+	addAvatarIDExceptAgent(participant_id);
+}
+
+void LLParticipantList::onAvalineCallerRemoved(const LLUUID& participant_id)
+{
+	LL_DEBUGS("Avaline") << "Removing avaline caller from the list: " << participant_id << LL_ENDL;
+
+	mSpeakerMgr->removeAvalineSpeaker(participant_id);
+}
+
 void LLParticipantList::setSortOrder(EParticipantSortOrder order)
 {
 	if ( mSortOrder != order )
@@ -355,8 +549,20 @@ void LLParticipantList::addAvatarIDExceptAgent(const LLUUID& avatar_id)
 	if (mExcludeAgent && gAgent.getID() == avatar_id) return;
 	if (mAvatarList->contains(avatar_id)) return;
 
-	mAvatarList->getIDs().push_back(avatar_id);
-	mAvatarList->setDirty();
+	bool is_avatar = LLVoiceClient::getInstance()->isParticipantAvatar(avatar_id);
+
+	if (is_avatar)
+	{
+		mAvatarList->getIDs().push_back(avatar_id);
+		mAvatarList->setDirty();
+	}
+	else
+	{
+		LLVoiceClient::participantState *participant = LLVoiceClient::getInstance()->findParticipantByID(avatar_id);
+
+		mAvatarList->addAvalineItem(avatar_id, mSpeakerMgr->getSessionID(), participant ? participant->mAccountName : LLTrans::getString("AvatarNameWaiting"));
+		mAvalineUpdater->watchAvalineCaller(avatar_id);
+	}
 	adjustParticipant(avatar_id);
 }