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/**
* @file llspeakingindicatormanager.cpp
* @author Mike Antipov
* @brief Implementation of SpeackerIndicatorManager class to process registered LLSpeackerIndicator
* depend on avatars are in the same voice channel.
*
* $LicenseInfo:firstyear=2010&license=viewergpl$
*
* Copyright (c) 2010, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llspeakingindicatormanager.h"
#include "llvoicechannel.h"
#include "llvoiceclient.h"
/**
* This class intended to control visibility of avatar speaking indicators depend on whether avatars
* are in the same voice channel.
*
* Speaking indicator should be visible for avatars in the same voice channel. See EXT-3976.
*
* It stores passed instances of LLOutputMonitorCtrl in a multimap by avatar LLUUID.
* It observes changing of voice channel and changing of participant list in voice channel.
* When voice channel or voice participant list is changed it updates visibility of an appropriate
* speaking indicator.
*
* Several indicators can be registered for the same avatar.
*/
class SpeakingIndicatorManager : public LLSingleton<SpeakingIndicatorManager>, LLVoiceClientParticipantObserver
{
LOG_CLASS(SpeakingIndicatorManager);
public:
/**
* Stores passed speaking indicator to control its visibility.
*
* Registered indicator is set visible if an appropriate avatar is in the same voice channel with Agent.
* It ignores instances of Agent's indicator.
*
* @param speaker_id LLUUID of an avatar whose speaking indicator is registered.
* @param speaking_indicator instance of the speaking indicator to be registered.
*/
void registerSpeakingIndicator(const LLUUID& speaker_id, LLSpeakingIndicator* const speaking_indicator);
/**
* Removes passed speaking indicator from observing.
*
* @param speaker_id LLUUID of an avatar whose speaking indicator should be unregistered.
* @param speaking_indicator instance of the speaking indicator to be unregistered.
*/
void unregisterSpeakingIndicator(const LLUUID& speaker_id, const LLSpeakingIndicator* const speaking_indicator);
private:
typedef std::set<LLUUID> speaker_ids_t;
typedef std::multimap<LLUUID, LLSpeakingIndicator*> speaking_indicators_mmap_t;
typedef speaking_indicators_mmap_t::value_type speaking_indicator_value_t;
typedef speaking_indicators_mmap_t::const_iterator indicator_const_iterator;
typedef std::pair<indicator_const_iterator, indicator_const_iterator> indicator_range_t;
friend class LLSingleton<SpeakingIndicatorManager>;
SpeakingIndicatorManager();
~SpeakingIndicatorManager();
/**
* Callback to determine when voice channel is changed.
*
* It switches all registered speaking indicators off.
* To reduce overheads only switched on indicators are processed.
*/
void sOnCurrentChannelChanged(const LLUUID& session_id);
/**
* Callback of changing voice participant list (from LLVoiceClientParticipantObserver).
*
* Switches off indicators had been switched on and switches on indicators of current participants list.
* There is only a few indicators in lists should be switched off/on.
* So, method does not calculate difference between these list it only switches off already
* switched on indicators and switches on indicators of voice channel participants
*/
void onChange();
/**
* Changes state of indicators specified by LLUUIDs
*
* @param speakers_uuids - avatars' LLUUIDs whose speaking indicators should be switched
* @param switch_on - if TRUE specified indicator will be switched on, off otherwise.
*/
void switchSpeakerIndicators(const speaker_ids_t& speakers_uuids, BOOL switch_on);
/**
* Multimap with all registered speaking indicators
*/
speaking_indicators_mmap_t mSpeakingIndicators;
/**
* LUUIDs of avatar for which we have speaking indicators switched on.
*
* Is used to switch off all previously ON indicators when voice participant list is changed.
*
* @see onChange()
*/
speaker_ids_t mSwitchedIndicatorsOn;
};
//////////////////////////////////////////////////////////////////////////
// PUBLIC SECTION
//////////////////////////////////////////////////////////////////////////
void SpeakingIndicatorManager::registerSpeakingIndicator(const LLUUID& speaker_id, LLSpeakingIndicator* const speaking_indicator)
{
// do not exclude agent's indicators. They should be processed in the same way as others. See EXT-3889.
LL_DEBUGS("SpeakingIndicator") << "Registering indicator: " << speaker_id << LL_ENDL;
speaking_indicator_value_t value_type(speaker_id, speaking_indicator);
mSpeakingIndicators.insert(value_type);
speaker_ids_t speakers_uuids;
BOOL is_in_same_voice = LLVoiceClient::getInstance()->findParticipantByID(speaker_id) != NULL;
speakers_uuids.insert(speaker_id);
switchSpeakerIndicators(speakers_uuids, is_in_same_voice);
}
void SpeakingIndicatorManager::unregisterSpeakingIndicator(const LLUUID& speaker_id, const LLSpeakingIndicator* const speaking_indicator)
{
speaking_indicators_mmap_t::iterator it;
it = mSpeakingIndicators.find(speaker_id);
for (;it != mSpeakingIndicators.end(); ++it)
{
if (it->second == speaking_indicator)
{
mSpeakingIndicators.erase(it);
break;
}
}
}
//////////////////////////////////////////////////////////////////////////
// PRIVATE SECTION
//////////////////////////////////////////////////////////////////////////
SpeakingIndicatorManager::SpeakingIndicatorManager()
{
LLVoiceChannel::setCurrentVoiceChannelChangedCallback(boost::bind(&SpeakingIndicatorManager::sOnCurrentChannelChanged, this, _1));
LLVoiceClient::getInstance()->addObserver(this);
}
SpeakingIndicatorManager::~SpeakingIndicatorManager()
{
// Don't use LLVoiceClient::getInstance() here without check
// singleton MAY have already been destroyed.
if(LLVoiceClient::instanceExists())
{
LLVoiceClient::getInstance()->removeObserver(this);
}
}
void SpeakingIndicatorManager::sOnCurrentChannelChanged(const LLUUID& /*session_id*/)
{
switchSpeakerIndicators(mSwitchedIndicatorsOn, FALSE);
mSwitchedIndicatorsOn.clear();
}
void SpeakingIndicatorManager::onChange()
{
LL_DEBUGS("SpeakingIndicator") << "Voice participant list was changed, updating indicators" << LL_ENDL;
speaker_ids_t speakers_uuids;
LLVoiceClient::getInstance()->getParticipantsUUIDSet(speakers_uuids);
LL_DEBUGS("SpeakingIndicator") << "Switching all OFF, count: " << mSwitchedIndicatorsOn.size() << LL_ENDL;
// switch all indicators off
switchSpeakerIndicators(mSwitchedIndicatorsOn, FALSE);
mSwitchedIndicatorsOn.clear();
LL_DEBUGS("SpeakingIndicator") << "Switching all ON, count: " << speakers_uuids.size() << LL_ENDL;
// then switch current voice participants indicators on
switchSpeakerIndicators(speakers_uuids, TRUE);
}
void SpeakingIndicatorManager::switchSpeakerIndicators(const speaker_ids_t& speakers_uuids, BOOL switch_on)
{
speaker_ids_t::const_iterator it_uuid = speakers_uuids.begin();
for (; it_uuid != speakers_uuids.end(); ++it_uuid)
{
LL_DEBUGS("SpeakingIndicator") << "Looking for indicator: " << *it_uuid << LL_ENDL;
indicator_range_t it_range = mSpeakingIndicators.equal_range(*it_uuid);
indicator_const_iterator it_indicator = it_range.first;
bool was_found = false;
for (; it_indicator != it_range.second; ++it_indicator)
{
was_found = true;
LLSpeakingIndicator* indicator = (*it_indicator).second;
indicator->switchIndicator(switch_on);
}
if (was_found)
{
LL_DEBUGS("SpeakingIndicator") << mSpeakingIndicators.count(*it_uuid) << " indicators where found" << LL_ENDL;
if (switch_on)
{
// store switched on indicator to be able switch it off
mSwitchedIndicatorsOn.insert(*it_uuid);
}
}
}
}
/************************************************************************/
/* LLSpeakingIndicatorManager namespace implementation */
/************************************************************************/
void LLSpeakingIndicatorManager::registerSpeakingIndicator(const LLUUID& speaker_id, LLSpeakingIndicator* const speaking_indicator)
{
SpeakingIndicatorManager::instance().registerSpeakingIndicator(speaker_id, speaking_indicator);
}
void LLSpeakingIndicatorManager::unregisterSpeakingIndicator(const LLUUID& speaker_id, const LLSpeakingIndicator* const speaking_indicator)
{
SpeakingIndicatorManager::instance().unregisterSpeakingIndicator(speaker_id, speaking_indicator);
}
// EOF
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