llimpanel.cpp

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#include "llviewerprecompiledheaders.h"

#include "llimpanel.h"

#include "indra_constants.h"
#include "llfocusmgr.h"
#include "llfontgl.h"
#include "llrect.h"
#include "llerror.h"
#include "llstring.h"
#include "message.h"
#include "lltextbox.h"

#include "llagent.h"
#include "llbutton.h"
#include "llcallingcard.h"
#include "llchat.h"
#include "llconsole.h"
#include "llfloater.h"
#include "llfloatergroupinfo.h"
#include "llimview.h"
#include "llinventory.h"
#include "llinventorymodel.h"
#include "llinventoryview.h"
#include "llfloateractivespeakers.h"
#include "llfloateravatarinfo.h"
#include "llfloaterchat.h"
#include "llkeyboard.h"
#include "lllineeditor.h"
#include "llnotify.h"
#include "llresmgr.h"
#include "lltabcontainer.h"
#include "llviewertexteditor.h"
#include "llviewermessage.h"
#include "llviewerstats.h"
#include "llviewercontrol.h"
#include "lluictrlfactory.h"
#include "llviewerwindow.h"
#include "lllogchat.h"
#include "llfloaterhtml.h"
#include "llweb.h"
#include "llhttpclient.h"
#include "llmutelist.h"
#include "llstylemap.h"

//
// Constants
//
const S32 LINE_HEIGHT = 16;
const S32 MIN_WIDTH = 200;
const S32 MIN_HEIGHT = 130;
const U32 DEFAULT_RETRIES_COUNT = 3;

//
// Statics
//
//
static LLString sTitleString = "Instant Message with [NAME]";
static LLString sTypingStartString = "[NAME]: ...";
static LLString sSessionStartString = "Starting session with [NAME] please wait.";

LLVoiceChannel::voice_channel_map_t LLVoiceChannel::sVoiceChannelMap;
LLVoiceChannel::voice_channel_map_uri_t LLVoiceChannel::sVoiceChannelURIMap;
LLVoiceChannel* LLVoiceChannel::sCurrentVoiceChannel = NULL;
LLVoiceChannel* LLVoiceChannel::sSuspendedVoiceChannel = NULL;

BOOL LLVoiceChannel::sSuspended = FALSE;

void session_starter_helper(
        const LLUUID& temp_session_id,
        const LLUUID& other_participant_id,
        EInstantMessage im_type)
{
        LLMessageSystem *msg = gMessageSystem;

        msg->newMessageFast(_PREHASH_ImprovedInstantMessage);
        msg->nextBlockFast(_PREHASH_AgentData);
        msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
        msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());

        msg->nextBlockFast(_PREHASH_MessageBlock);
        msg->addBOOLFast(_PREHASH_FromGroup, FALSE);
        msg->addUUIDFast(_PREHASH_ToAgentID, other_participant_id);
        msg->addU8Fast(_PREHASH_Offline, IM_ONLINE);
        msg->addU8Fast(_PREHASH_Dialog, im_type);
        msg->addUUIDFast(_PREHASH_ID, temp_session_id);
        msg->addU32Fast(_PREHASH_Timestamp, NO_TIMESTAMP); // no timestamp necessary

        std::string name;
        gAgent.buildFullname(name);

        msg->addStringFast(_PREHASH_FromAgentName, name);
        msg->addStringFast(_PREHASH_Message, LLString::null);
        msg->addU32Fast(_PREHASH_ParentEstateID, 0);
        msg->addUUIDFast(_PREHASH_RegionID, LLUUID::null);
        msg->addVector3Fast(_PREHASH_Position, gAgent.getPositionAgent());
}

void start_deprecated_conference_chat(
        const LLUUID& temp_session_id,
        const LLUUID& creator_id,
        const LLUUID& other_participant_id,
        const LLSD& agents_to_invite)
{
        U8* bucket;
        U8* pos;
        S32 count;
        S32 bucket_size;

        // *FIX: this could suffer from endian issues
        count = agents_to_invite.size();
        bucket_size = UUID_BYTES * count;
        bucket = new U8[bucket_size];
        pos = bucket;

        for(S32 i = 0; i < count; ++i)
        {
                LLUUID agent_id = agents_to_invite[i].asUUID();
                
                memcpy(pos, &agent_id, UUID_BYTES);
                pos += UUID_BYTES;
        }

        session_starter_helper(
                temp_session_id,
                other_participant_id,
                IM_SESSION_CONFERENCE_START);

        gMessageSystem->addBinaryDataFast(
                _PREHASH_BinaryBucket,
                bucket,
                bucket_size);

        gAgent.sendReliableMessage();
 
        delete[] bucket;
}

class LLStartConferenceChatResponder : public LLHTTPClient::Responder
{
public:
        LLStartConferenceChatResponder(
                const LLUUID& temp_session_id,
                const LLUUID& creator_id,
                const LLUUID& other_participant_id,
                const LLSD& agents_to_invite)
        {
                mTempSessionID = temp_session_id;
                mCreatorID = creator_id;
                mOtherParticipantID = other_participant_id;
                mAgents = agents_to_invite;
        }

        virtual void error(U32 statusNum, const std::string& reason)
        {
                //try an "old school" way.
                if ( statusNum == 400 )
                {
                        start_deprecated_conference_chat(
                                mTempSessionID,
                                mCreatorID,
                                mOtherParticipantID,
                                mAgents);
                }

                //else throw an error back to the client?
                //in theory we should have just have these error strings
                //etc. set up in this file as opposed to the IMMgr,
                //but the error string were unneeded here previously
                //and it is not worth the effort switching over all
                //the possible different language translations
        }

private:
        LLUUID mTempSessionID;
        LLUUID mCreatorID;
        LLUUID mOtherParticipantID;

        LLSD mAgents;
};

// Returns true if any messages were sent, false otherwise.
// Is sort of equivalent to "does the server need to do anything?"
bool send_start_session_messages(
        const LLUUID& temp_session_id,
        const LLUUID& other_participant_id,
        const LLDynamicArray<LLUUID>& ids,
        EInstantMessage dialog)
{
        if ( dialog == IM_SESSION_GROUP_START )
        {
                session_starter_helper(
                        temp_session_id,
                        other_participant_id,
                        dialog);

                switch(dialog)
                {
                case IM_SESSION_GROUP_START:
                        gMessageSystem->addBinaryDataFast(
                                _PREHASH_BinaryBucket,
                                EMPTY_BINARY_BUCKET,
                                EMPTY_BINARY_BUCKET_SIZE);
                        break;
                default:
                        break;
                }
                gAgent.sendReliableMessage();

                return true;
        }
        else if ( dialog == IM_SESSION_CONFERENCE_START )
        {
                LLSD agents;
                for (int i = 0; i < (S32) ids.size(); i++)
                {
                        agents.append(ids.get(i));
                }

                //we have a new way of starting conference calls now
                LLViewerRegion* region = gAgent.getRegion();
                if (region)
                {
                        std::string url = region->getCapability(
                                "ChatSessionRequest");
                        LLSD data;
                        data["method"] = "start conference";
                        data["session-id"] = temp_session_id;

                        data["params"] = agents;

                        LLHTTPClient::post(
                                url,
                                data,
                                new LLStartConferenceChatResponder(
                                        temp_session_id,
                                        gAgent.getID(),
                                        other_participant_id,
                                        data["params"]));
                }
                else
                {
                        start_deprecated_conference_chat(
                                temp_session_id,
                                gAgent.getID(),
                                other_participant_id,
                                agents);
                }
        }

        return false;
}

class LLVoiceCallCapResponder : public LLHTTPClient::Responder
{
public:
        LLVoiceCallCapResponder(const LLUUID& session_id) : mSessionID(session_id) {};

        virtual void error(U32 status, const std::string& reason);      // called with bad status codes
        virtual void result(const LLSD& content);

private:
        LLUUID mSessionID;
};


void LLVoiceCallCapResponder::error(U32 status, const std::string& reason)
{
        llwarns << "LLVoiceCallCapResponder::error("
                << status << ": " << reason << ")"
                << llendl;
        LLVoiceChannel* channelp = LLVoiceChannel::getChannelByID(mSessionID);
        if ( channelp )
        {
                if ( 403 == status )
                {
                        //403 == no ability
                        LLNotifyBox::showXml(
                                "VoiceNotAllowed",
                                channelp->getNotifyArgs());
                }
                else
                {
                        LLNotifyBox::showXml(
                                "VoiceCallGenericError",
                                channelp->getNotifyArgs());
                }
                channelp->deactivate();
        }
}

void LLVoiceCallCapResponder::result(const LLSD& content)
{
        LLVoiceChannel* channelp = LLVoiceChannel::getChannelByID(mSessionID);
        if (channelp)
        {
                //*TODO: DEBUG SPAM
                LLSD::map_const_iterator iter;
                for(iter = content.beginMap(); iter != content.endMap(); ++iter)
                {
                        llinfos << "LLVoiceCallCapResponder::result got " 
                                << iter->first << llendl;
                }

                channelp->setChannelInfo(
                        content["voice_credentials"]["channel_uri"].asString(),
                        content["voice_credentials"]["channel_credentials"].asString());
        }
}

//
// LLVoiceChannel
//
LLVoiceChannel::LLVoiceChannel(const LLUUID& session_id, const LLString& session_name) : 
        mSessionID(session_id), 
        mState(STATE_NO_CHANNEL_INFO), 
        mSessionName(session_name),
        mIgnoreNextSessionLeave(FALSE)
{
        mNotifyArgs["[VOICE_CHANNEL_NAME]"] = mSessionName;

        if (!sVoiceChannelMap.insert(std::make_pair(session_id, this)).second)
        {
                // a voice channel already exists for this session id, so this instance will be orphaned
                // the end result should simply be the failure to make voice calls
                llwarns << "Duplicate voice channels registered for session_id " << session_id << llendl;
        }

        LLVoiceClient::getInstance()->addStatusObserver(this);
}

LLVoiceChannel::~LLVoiceChannel()
{
        // Don't use LLVoiceClient::getInstance() here -- this can get called during atexit() time and that singleton MAY have already been destroyed.
        if(gVoiceClient)
        {
                gVoiceClient->removeStatusObserver(this);
        }
        
        sVoiceChannelMap.erase(mSessionID);
        sVoiceChannelURIMap.erase(mURI);
}

void LLVoiceChannel::setChannelInfo(
        const LLString& uri,
        const LLString& credentials)
{
        setURI(uri);

        mCredentials = credentials;

        if (mState == STATE_NO_CHANNEL_INFO)
        {
                if (mURI.empty())
                {
                        LLNotifyBox::showXml("VoiceChannelJoinFailed", mNotifyArgs);
                        llwarns << "Received empty URI for channel " << mSessionName << llendl;
                        deactivate();
                }
                else if (mCredentials.empty())
                {
                        LLNotifyBox::showXml("VoiceChannelJoinFailed", mNotifyArgs);
                        llwarns << "Received empty credentials for channel " << mSessionName << llendl;
                        deactivate();
                }
                else
                {
                        setState(STATE_READY);

                        // if we are supposed to be active, reconnect
                        // this will happen on initial connect, as we request credentials on first use
                        if (sCurrentVoiceChannel == this)
                        {
                                // just in case we got new channel info while active
                                // should move over to new channel
                                activate();
                        }
                }
        }
}

void LLVoiceChannel::onChange(EStatusType type, const std::string &channelURI, bool proximal)
{
        if (channelURI != mURI)
        {
                return;
        }

        if (type < BEGIN_ERROR_STATUS)
        {
                handleStatusChange(type);
        }
        else
        {
                handleError(type);
        }
}

void LLVoiceChannel::handleStatusChange(EStatusType type)
{
        // status updates
        switch(type)
        {
        case STATUS_LOGIN_RETRY:
                mLoginNotificationHandle = LLNotifyBox::showXml("VoiceLoginRetry")->getHandle();
                break;
        case STATUS_LOGGED_IN:
                if (!mLoginNotificationHandle.isDead())
                {
                        LLNotifyBox* notifyp = (LLNotifyBox*)mLoginNotificationHandle.get();
                        if (notifyp)
                        {
                                notifyp->close();
                        }
                        mLoginNotificationHandle.markDead();
                }
                break;
        case STATUS_LEFT_CHANNEL:
                if (callStarted() && !mIgnoreNextSessionLeave && !sSuspended)
                {
                        // if forceably removed from channel
                        // update the UI and revert to default channel
                        LLNotifyBox::showXml("VoiceChannelDisconnected", mNotifyArgs);
                        deactivate();
                }
                mIgnoreNextSessionLeave = FALSE;
                break;
        case STATUS_JOINING:
                if (callStarted())
                {
                        setState(STATE_RINGING);
                }
                break;
        case STATUS_JOINED:
                if (callStarted())
                {
                        setState(STATE_CONNECTED);
                }
        default:
                break;
        }
}

// default behavior is to just deactivate channel
// derived classes provide specific error messages
void LLVoiceChannel::handleError(EStatusType type)
{
        deactivate();
        setState(STATE_ERROR);
}

BOOL LLVoiceChannel::isActive()
{ 
        // only considered active when currently bound channel matches what our channel
        return callStarted() && LLVoiceClient::getInstance()->getCurrentChannel() == mURI; 
}

BOOL LLVoiceChannel::callStarted()
{
        return mState >= STATE_CALL_STARTED;
}

void LLVoiceChannel::deactivate()
{
        if (mState >= STATE_RINGING)
        {
                // ignore session leave event
                mIgnoreNextSessionLeave = TRUE;
        }

        if (callStarted())
        {
                setState(STATE_HUNG_UP);
        }
        if (sCurrentVoiceChannel == this)
        {
                // default channel is proximal channel
                sCurrentVoiceChannel = LLVoiceChannelProximal::getInstance();
                sCurrentVoiceChannel->activate();
        }
}

void LLVoiceChannel::activate()
{
        if (callStarted())
        {
                return;
        }

        // deactivate old channel and mark ourselves as the active one
        if (sCurrentVoiceChannel != this)
        {
                if (sCurrentVoiceChannel)
                {
                        sCurrentVoiceChannel->deactivate();
                }
                sCurrentVoiceChannel = this;
        }

        if (mState == STATE_NO_CHANNEL_INFO)
        {
                // responsible for setting status to active
                getChannelInfo();
        }
        else
        {
                setState(STATE_CALL_STARTED);
        }
}

void LLVoiceChannel::getChannelInfo()
{
        // pretend we have everything we need
        if (sCurrentVoiceChannel == this)
        {
                setState(STATE_CALL_STARTED);
        }
}

//static 
LLVoiceChannel* LLVoiceChannel::getChannelByID(const LLUUID& session_id)
{
        voice_channel_map_t::iterator found_it = sVoiceChannelMap.find(session_id);
        if (found_it == sVoiceChannelMap.end())
        {
                return NULL;
        }
        else
        {
                return found_it->second;
        }
}

//static 
LLVoiceChannel* LLVoiceChannel::getChannelByURI(LLString uri)
{
        voice_channel_map_uri_t::iterator found_it = sVoiceChannelURIMap.find(uri);
        if (found_it == sVoiceChannelURIMap.end())
        {
                return NULL;
        }
        else
        {
                return found_it->second;
        }
}


void LLVoiceChannel::updateSessionID(const LLUUID& new_session_id)
{
        sVoiceChannelMap.erase(sVoiceChannelMap.find(mSessionID));
        mSessionID = new_session_id;
        sVoiceChannelMap.insert(std::make_pair(mSessionID, this));
}

void LLVoiceChannel::setURI(LLString uri)
{
        sVoiceChannelURIMap.erase(mURI);
        mURI = uri;
        sVoiceChannelURIMap.insert(std::make_pair(mURI, this));
}

void LLVoiceChannel::setState(EState state)
{
        switch(state)
        {
        case STATE_RINGING:
                gIMMgr->addSystemMessage(mSessionID, "ringing", mNotifyArgs);
                break;
        case STATE_CONNECTED:
                gIMMgr->addSystemMessage(mSessionID, "connected", mNotifyArgs);
                break;
        case STATE_HUNG_UP:
                gIMMgr->addSystemMessage(mSessionID, "hang_up", mNotifyArgs);
                break;
        default:
                break;
        }

        mState = state;
}


//static
void LLVoiceChannel::initClass()
{
        sCurrentVoiceChannel = LLVoiceChannelProximal::getInstance();
}


//static 
void LLVoiceChannel::suspend()
{
        if (!sSuspended)
        {
                sSuspendedVoiceChannel = sCurrentVoiceChannel;
                sSuspended = TRUE;
        }
}

//static 
void LLVoiceChannel::resume()
{
        if (sSuspended)
        {
                if (gVoiceClient->voiceEnabled())
                {
                        if (sSuspendedVoiceChannel)
                        {
                                sSuspendedVoiceChannel->activate();
                        }
                        else
                        {
                                LLVoiceChannelProximal::getInstance()->activate();
                        }
                }
                sSuspended = FALSE;
        }
}


//
// LLVoiceChannelGroup
//

LLVoiceChannelGroup::LLVoiceChannelGroup(const LLUUID& session_id, const LLString& session_name) : 
        LLVoiceChannel(session_id, session_name)
{
        mRetries = DEFAULT_RETRIES_COUNT;
        mIsRetrying = FALSE;
}

void LLVoiceChannelGroup::deactivate()
{
        if (callStarted())
        {
                LLVoiceClient::getInstance()->leaveNonSpatialChannel();
        }
        LLVoiceChannel::deactivate();
}

void LLVoiceChannelGroup::activate()
{
        if (callStarted()) return;

        LLVoiceChannel::activate();

        if (callStarted())
        {
                // we have the channel info, just need to use it now
                LLVoiceClient::getInstance()->setNonSpatialChannel(
                        mURI,
                        mCredentials);
        }
}

void LLVoiceChannelGroup::getChannelInfo()
{
        LLViewerRegion* region = gAgent.getRegion();
        if (region)
        {
                std::string url = region->getCapability("ChatSessionRequest");
                LLSD data;
                data["method"] = "call";
                data["session-id"] = mSessionID;
                LLHTTPClient::post(url,
                                                   data,
                                                   new LLVoiceCallCapResponder(mSessionID));
        }
}

void LLVoiceChannelGroup::setChannelInfo(
        const LLString& uri,
        const LLString& credentials)
{
        setURI(uri);

        mCredentials = credentials;

        if (mState == STATE_NO_CHANNEL_INFO)
        {
                if(!mURI.empty() && !mCredentials.empty())
                {
                        setState(STATE_READY);

                        // if we are supposed to be active, reconnect
                        // this will happen on initial connect, as we request credentials on first use
                        if (sCurrentVoiceChannel == this)
                        {
                                // just in case we got new channel info while active
                                // should move over to new channel
                                activate();
                        }
                }
                else
                {
                        //*TODO: notify user
                        llwarns << "Received invalid credentials for channel " << mSessionName << llendl;
                        deactivate();
                }
        }
        else if ( mIsRetrying )
        {
                // we have the channel info, just need to use it now
                LLVoiceClient::getInstance()->setNonSpatialChannel(
                        mURI,
                        mCredentials);
        }
}

void LLVoiceChannelGroup::handleStatusChange(EStatusType type)
{
        // status updates
        switch(type)
        {
        case STATUS_JOINED:
                mRetries = 3;
                mIsRetrying = FALSE;
        default:
                break;
        }

        LLVoiceChannel::handleStatusChange(type);
}

void LLVoiceChannelGroup::handleError(EStatusType status)
{
        std::string notify;
        switch(status)
        {
        case ERROR_CHANNEL_LOCKED:
        case ERROR_CHANNEL_FULL:
                notify = "VoiceChannelFull";
                break;
        case ERROR_NOT_AVAILABLE:
                //clear URI and credentials
                //set the state to be no info
                //and activate
                if ( mRetries > 0 )
                {
                        mRetries--;
                        mIsRetrying = TRUE;
                        mIgnoreNextSessionLeave = TRUE;

                        getChannelInfo();
                        return;
                }
                else
                {
                        notify = "VoiceChannelJoinFailed";
                        mRetries = DEFAULT_RETRIES_COUNT;
                        mIsRetrying = FALSE;
                }

                break;

        case ERROR_UNKNOWN:
        default:
                break;
        }

        // notification
        if (!notify.empty())
        {
                LLNotifyBox::showXml(notify, mNotifyArgs);
                // echo to im window
                gIMMgr->addMessage(mSessionID, LLUUID::null, SYSTEM_FROM, LLNotifyBox::getTemplateMessage(notify, mNotifyArgs).c_str());
        }

        LLVoiceChannel::handleError(status);
}

void LLVoiceChannelGroup::setState(EState state)
{
        switch(state)
        {
        case STATE_RINGING:
                if ( !mIsRetrying )
                {
                        gIMMgr->addSystemMessage(mSessionID, "ringing", mNotifyArgs);
                }

                mState = state;
                break;
        default:
                LLVoiceChannel::setState(state);
        }
}

//
// LLVoiceChannelProximal
//
LLVoiceChannelProximal::LLVoiceChannelProximal() : 
        LLVoiceChannel(LLUUID::null, LLString::null)
{
        activate();
}

BOOL LLVoiceChannelProximal::isActive()
{
        return callStarted() && LLVoiceClient::getInstance()->inProximalChannel(); 
}

void LLVoiceChannelProximal::activate()
{
        if (callStarted()) return;

        LLVoiceChannel::activate();

        if (callStarted())
        {
                // this implicitly puts you back in the spatial channel
                LLVoiceClient::getInstance()->leaveNonSpatialChannel();
        }
}

void LLVoiceChannelProximal::onChange(EStatusType type, const std::string &channelURI, bool proximal)
{
        if (!proximal)
        {
                return;
        }

        if (type < BEGIN_ERROR_STATUS)
        {
                handleStatusChange(type);
        }
        else
        {
                handleError(type);
        }
}

void LLVoiceChannelProximal::handleStatusChange(EStatusType status)
{
        // status updates
        switch(status)
        {
        case STATUS_LEFT_CHANNEL:
                // do not notify user when leaving proximal channel
                return;
        case STATUS_VOICE_DISABLED:
                 gIMMgr->addSystemMessage(LLUUID::null, "unavailable", mNotifyArgs);
                return;
        default:
                break;
        }
        LLVoiceChannel::handleStatusChange(status);
}


void LLVoiceChannelProximal::handleError(EStatusType status)
{
        std::string notify;
        switch(status)
        {
          case ERROR_CHANNEL_LOCKED:
          case ERROR_CHANNEL_FULL:
                notify = "ProximalVoiceChannelFull";
                break;
          default:
                 break;
        }

        // notification
        if (!notify.empty())
        {
                LLNotifyBox::showXml(notify, mNotifyArgs);
        }

        LLVoiceChannel::handleError(status);
}

void LLVoiceChannelProximal::deactivate()
{
        if (callStarted())
        {
                setState(STATE_HUNG_UP);
        }
}


//
// LLVoiceChannelP2P
//
LLVoiceChannelP2P::LLVoiceChannelP2P(const LLUUID& session_id, const LLString& session_name, const LLUUID& other_user_id) : 
                LLVoiceChannelGroup(session_id, session_name), 
                mOtherUserID(other_user_id),
                mReceivedCall(FALSE)
{
        // make sure URI reflects encoded version of other user's agent id
        setURI(LLVoiceClient::getInstance()->sipURIFromID(other_user_id));
}

void LLVoiceChannelP2P::handleStatusChange(EStatusType type)
{
        // status updates
        switch(type)
        {
        case STATUS_LEFT_CHANNEL:
                if (callStarted() && !mIgnoreNextSessionLeave && !sSuspended)
                {
                        if (mState == STATE_RINGING)
                        {
                                // other user declined call
                                LLNotifyBox::showXml("P2PCallDeclined", mNotifyArgs);
                        }
                        else
                        {
                                // other user hung up
                                LLNotifyBox::showXml("VoiceChannelDisconnectedP2P", mNotifyArgs);
                        }
                        deactivate();
                }
                mIgnoreNextSessionLeave = FALSE;
                return;
        default:
                break;
        }

        LLVoiceChannel::handleStatusChange(type);
}

void LLVoiceChannelP2P::handleError(EStatusType type)
{
        switch(type)
        {
        case ERROR_NOT_AVAILABLE:
                LLNotifyBox::showXml("P2PCallNoAnswer", mNotifyArgs);
                break;
        default:
                break;
        }

        LLVoiceChannel::handleError(type);
}

void LLVoiceChannelP2P::activate()
{
        if (callStarted()) return;

        LLVoiceChannel::activate();

        if (callStarted())
        {
                // no session handle yet, we're starting the call
                if (mSessionHandle.empty())
                {
                        mReceivedCall = FALSE;
                        LLVoiceClient::getInstance()->callUser(mOtherUserID);
                }
                // otherwise answering the call
                else
                {
                        LLVoiceClient::getInstance()->answerInvite(mSessionHandle, mOtherUserID);
                        // using the session handle invalidates it.  Clear it out here so we can't reuse it by accident.
                        mSessionHandle.clear();
                }
        }
}

void LLVoiceChannelP2P::getChannelInfo()
{
        // pretend we have everything we need, since P2P doesn't use channel info
        if (sCurrentVoiceChannel == this)
        {
                setState(STATE_CALL_STARTED);
        }
}

// receiving session from other user who initiated call
void LLVoiceChannelP2P::setSessionHandle(const LLString& handle)
{ 
        BOOL needs_activate = FALSE;
        if (callStarted())
        {
                // defer to lower agent id when already active
                if (mOtherUserID < gAgent.getID())
                {
                        // pretend we haven't started the call yet, so we can connect to this session instead
                        deactivate();
                        needs_activate = TRUE;
                }
                else
                {
                        // we are active and have priority, invite the other user again
                        // under the assumption they will join this new session
                        mSessionHandle.clear();
                        LLVoiceClient::getInstance()->callUser(mOtherUserID);
                        return;
                }
        }

        mSessionHandle = handle;
        // The URI of a p2p session should always be the other end's SIP URI.
        setURI(LLVoiceClient::getInstance()->sipURIFromID(mOtherUserID));
        mReceivedCall = TRUE;

        if (needs_activate)
        {
                activate();
        }
}

void LLVoiceChannelP2P::setState(EState state)
{
        // you only "answer" voice invites in p2p mode
        // so provide a special purpose message here
        if (mReceivedCall && state == STATE_RINGING)
        {
                gIMMgr->addSystemMessage(mSessionID, "answering", mNotifyArgs);
                mState = state;
                return;
        }
        LLVoiceChannel::setState(state);
}


//
// LLFloaterIMPanel
//
LLFloaterIMPanel::LLFloaterIMPanel(
        const std::string& session_label,
        const LLUUID& session_id,
        const LLUUID& other_participant_id,
        EInstantMessage dialog) :
        LLFloater(session_label, LLRect(), session_label),
        mInputEditor(NULL),
        mHistoryEditor(NULL),
        mSessionUUID(session_id),
        mVoiceChannel(NULL),
        mSessionInitialized(FALSE),
        mSessionStartMsgPos(0),
        mOtherParticipantUUID(other_participant_id),
        mDialog(dialog),
        mTyping(FALSE),
        mOtherTyping(FALSE),
        mTypingLineStartIndex(0),
        mSentTypingState(TRUE),
        mNumUnreadMessages(0),
        mShowSpeakersOnConnect(TRUE),
        mAutoConnect(FALSE),
        mSpeakerPanel(NULL),
        mFirstKeystrokeTimer(),
        mLastKeystrokeTimer()
{
        init(session_label);
}

LLFloaterIMPanel::LLFloaterIMPanel(
        const std::string& session_label,
        const LLUUID& session_id,
        const LLUUID& other_participant_id,
        const LLDynamicArray<LLUUID>& ids,
        EInstantMessage dialog) :
        LLFloater(session_label, LLRect(), session_label),
        mInputEditor(NULL),
        mHistoryEditor(NULL),
        mSessionUUID(session_id),
        mVoiceChannel(NULL),
        mSessionInitialized(FALSE),
        mSessionStartMsgPos(0),
        mOtherParticipantUUID(other_participant_id),
        mDialog(dialog),
        mTyping(FALSE),
        mOtherTyping(FALSE),
        mTypingLineStartIndex(0),
        mSentTypingState(TRUE),
        mShowSpeakersOnConnect(TRUE),
        mAutoConnect(FALSE),
        mSpeakers(NULL),
        mSpeakerPanel(NULL),
        mFirstKeystrokeTimer(),
        mLastKeystrokeTimer()
{
        mSessionInitialTargetIDs = ids;
        init(session_label);
}


void LLFloaterIMPanel::init(const LLString& session_label)
{
        mSessionLabel = session_label;

        LLString xml_filename;
        switch(mDialog)
        {
        case IM_SESSION_GROUP_START:
                mFactoryMap["active_speakers_panel"] = LLCallbackMap(createSpeakersPanel, this);
                xml_filename = "floater_instant_message_group.xml";
                mVoiceChannel = new LLVoiceChannelGroup(mSessionUUID, mSessionLabel);
                break;
        case IM_SESSION_INVITE:
                mFactoryMap["active_speakers_panel"] = LLCallbackMap(createSpeakersPanel, this);
                if (gAgent.isInGroup(mSessionUUID))
                {
                        xml_filename = "floater_instant_message_group.xml";
                }
                else // must be invite to ad hoc IM
                {
                        xml_filename = "floater_instant_message_ad_hoc.xml";
                }
                mVoiceChannel = new LLVoiceChannelGroup(mSessionUUID, mSessionLabel);
                break;
        case IM_SESSION_P2P_INVITE:
                xml_filename = "floater_instant_message.xml";
                mVoiceChannel = new LLVoiceChannelP2P(mSessionUUID, mSessionLabel, mOtherParticipantUUID);
                break;
        case IM_SESSION_CONFERENCE_START:
                mFactoryMap["active_speakers_panel"] = LLCallbackMap(createSpeakersPanel, this);
                xml_filename = "floater_instant_message_ad_hoc.xml";
                mVoiceChannel = new LLVoiceChannelGroup(mSessionUUID, mSessionLabel);
                break;
        // just received text from another user
        case IM_NOTHING_SPECIAL:
                xml_filename = "floater_instant_message.xml";
                mVoiceChannel = new LLVoiceChannelP2P(mSessionUUID, mSessionLabel, mOtherParticipantUUID);
                break;
        default:
                llwarns << "Unknown session type" << llendl;
                xml_filename = "floater_instant_message.xml";
                break;
        }

        mSpeakers = new LLIMSpeakerMgr(mVoiceChannel);

        LLUICtrlFactory::getInstance()->buildFloater(this,
                                                                xml_filename,
                                                                &getFactoryMap(),
                                                                FALSE);

        setTitle(mSessionLabel);
        mInputEditor->setMaxTextLength(1023);
        // enable line history support for instant message bar
        mInputEditor->setEnableLineHistory(TRUE);

        if ( gSavedPerAccountSettings.getBOOL("LogShowHistory") )
        {
                LLLogChat::loadHistory(mSessionLabel,
                                       &chatFromLogFile,
                                       (void *)this);
        }

        if ( !mSessionInitialized )
        {
                if ( !send_start_session_messages(
                                 mSessionUUID,
                                 mOtherParticipantUUID,
                                 mSessionInitialTargetIDs,
                                 mDialog) )
                {
                        //we don't need to need to wait for any responses
                        //so we're already initialized
                        mSessionInitialized = TRUE;
                        mSessionStartMsgPos = 0;
                }
                else
                {
                        //locally echo a little "starting session" message
                        LLUIString session_start = sSessionStartString;

                        session_start.setArg("[NAME]", getTitle());
                        mSessionStartMsgPos = 
                                mHistoryEditor->getWText().length();

                        addHistoryLine(
                                session_start,
                                gSavedSettings.getColor4("SystemChatColor"),
                                false);
                }
        }
}


LLFloaterIMPanel::~LLFloaterIMPanel()
{
        delete mSpeakers;
        mSpeakers = NULL;

        //kicks you out of the voice channel if it is currently active

        // HAVE to do this here -- if it happens in the LLVoiceChannel destructor it will call the wrong version (since the object's partially deconstructed at that point).
        mVoiceChannel->deactivate();
        
        delete mVoiceChannel;
        mVoiceChannel = NULL;
}

BOOL LLFloaterIMPanel::postBuild() 
{
        requires<LLLineEditor>("chat_editor");
        requires<LLTextEditor>("im_history");

        if (checkRequirements())
        {
                mInputEditor = getChild<LLLineEditor>("chat_editor");
                mInputEditor->setFocusReceivedCallback( onInputEditorFocusReceived, this );
                mInputEditor->setFocusLostCallback( onInputEditorFocusLost, this );
                mInputEditor->setKeystrokeCallback( onInputEditorKeystroke );
                mInputEditor->setCommitCallback( onCommitChat );
                mInputEditor->setCallbackUserData(this);
                mInputEditor->setCommitOnFocusLost( FALSE );
                mInputEditor->setRevertOnEsc( FALSE );

                childSetAction("profile_callee_btn", onClickProfile, this);
                childSetAction("group_info_btn", onClickGroupInfo, this);

                childSetAction("start_call_btn", onClickStartCall, this);
                childSetAction("end_call_btn", onClickEndCall, this);
                childSetAction("send_btn", onClickSend, this);
                childSetAction("toggle_active_speakers_btn", onClickToggleActiveSpeakers, this);

                childSetAction("moderator_kick_speaker", onKickSpeaker, this);
                //LLButton* close_btn = getChild<LLButton>("close_btn");
                //close_btn->setClickedCallback(&LLFloaterIMPanel::onClickClose, this);

                mHistoryEditor = getChild<LLViewerTextEditor>("im_history");
                mHistoryEditor->setParseHTML(TRUE);

                if ( IM_SESSION_GROUP_START == mDialog )
                {
                        childSetEnabled("profile_btn", FALSE);
                }

                sTitleString = getString("title_string");
                sTypingStartString = getString("typing_start_string");
                sSessionStartString = getString("session_start_string");

                if (mSpeakerPanel)
                {
                        mSpeakerPanel->refreshSpeakers();
                }

                if (mDialog == IM_NOTHING_SPECIAL)
                {
                        childSetAction("mute_btn", onClickMuteVoice, this);
                        childSetCommitCallback("speaker_volume", onVolumeChange, this);
                }

                setDefaultBtn("send_btn");
                return TRUE;
        }

        return FALSE;
}

void* LLFloaterIMPanel::createSpeakersPanel(void* data)
{
        LLFloaterIMPanel* floaterp = (LLFloaterIMPanel*)data;
        floaterp->mSpeakerPanel = new LLPanelActiveSpeakers(floaterp->mSpeakers, TRUE);
        return floaterp->mSpeakerPanel;
}

//static 
void LLFloaterIMPanel::onClickMuteVoice(void* user_data)
{
        LLFloaterIMPanel* floaterp = (LLFloaterIMPanel*)user_data;
        if (floaterp)
        {
                BOOL is_muted = LLMuteList::getInstance()->isMuted(floaterp->mOtherParticipantUUID, LLMute::flagVoiceChat);

                LLMute mute(floaterp->mOtherParticipantUUID, floaterp->getTitle(), LLMute::AGENT);
                if (!is_muted)
                {
                        LLMuteList::getInstance()->add(mute, LLMute::flagVoiceChat);
                }
                else
                {
                        LLMuteList::getInstance()->remove(mute, LLMute::flagVoiceChat);
                }
        }
}

//static 
void LLFloaterIMPanel::onVolumeChange(LLUICtrl* source, void* user_data)
{
        LLFloaterIMPanel* floaterp = (LLFloaterIMPanel*)user_data;
        if (floaterp)
        {
                gVoiceClient->setUserVolume(floaterp->mOtherParticipantUUID, (F32)source->getValue().asReal());
        }
}


// virtual
void LLFloaterIMPanel::draw()
{       
        LLViewerRegion* region = gAgent.getRegion();
        
        BOOL enable_connect = (region && region->getCapability("ChatSessionRequest") != "")
                                          && mSessionInitialized
                                          && LLVoiceClient::voiceEnabled();

        // hide/show start call and end call buttons
        childSetVisible("end_call_btn", LLVoiceClient::voiceEnabled() && mVoiceChannel->getState() >= LLVoiceChannel::STATE_CALL_STARTED);
        childSetVisible("start_call_btn", LLVoiceClient::voiceEnabled() && mVoiceChannel->getState() < LLVoiceChannel::STATE_CALL_STARTED);
        childSetEnabled("start_call_btn", enable_connect);
        childSetEnabled("send_btn", !childGetValue("chat_editor").asString().empty());
        
        LLPointer<LLSpeaker> self_speaker = mSpeakers->findSpeaker(gAgent.getID());
        if (self_speaker.notNull() && self_speaker->mModeratorMutedText)
        {
                mInputEditor->setEnabled(FALSE);
                mInputEditor->setLabel(getString("muted_text_label"));
        }
        else
        {
                mInputEditor->setEnabled(TRUE);
                mInputEditor->setLabel(getString("default_text_label"));
        }

        if (mAutoConnect && enable_connect)
        {
                onClickStartCall(this);
                mAutoConnect = FALSE;
        }

        // show speakers window when voice first connects
        if (mShowSpeakersOnConnect && mVoiceChannel->isActive())
        {
                childSetVisible("active_speakers_panel", TRUE);
                mShowSpeakersOnConnect = FALSE;
        }
        childSetValue("toggle_active_speakers_btn", childIsVisible("active_speakers_panel"));

        if (mTyping)
        {
                // Time out if user hasn't typed for a while.
                if (mLastKeystrokeTimer.getElapsedTimeF32() > LLAgent::TYPING_TIMEOUT_SECS)
                {
                        setTyping(FALSE);
                }

                // If we are typing, and it's been a little while, send the
                // typing indicator
                if (!mSentTypingState
                        && mFirstKeystrokeTimer.getElapsedTimeF32() > 1.f)
                {
                        sendTypingState(TRUE);
                        mSentTypingState = TRUE;
                }
        }

        // use embedded panel if available
        if (mSpeakerPanel)
        {
                if (mSpeakerPanel->getVisible())
                {
                        mSpeakerPanel->refreshSpeakers();
                }
        }
        else
        {
                // refresh volume and mute checkbox
                childSetVisible("speaker_volume", LLVoiceClient::voiceEnabled() && mVoiceChannel->isActive());
                childSetValue("speaker_volume", gVoiceClient->getUserVolume(mOtherParticipantUUID));

                childSetValue("mute_btn", LLMuteList::getInstance()->isMuted(mOtherParticipantUUID, LLMute::flagVoiceChat));
                childSetVisible("mute_btn", LLVoiceClient::voiceEnabled() && mVoiceChannel->isActive());
        }
        LLFloater::draw();
}

class LLSessionInviteResponder : public LLHTTPClient::Responder
{
public:
        LLSessionInviteResponder(const LLUUID& session_id)
        {
                mSessionID = session_id;
        }

        void error(U32 statusNum, const std::string& reason)
        {
                llinfos << "Error inviting all agents to session" << llendl;
                //throw something back to the viewer here?
        }

private:
        LLUUID mSessionID;
};

BOOL LLFloaterIMPanel::inviteToSession(const LLDynamicArray<LLUUID>& ids)
{
        LLViewerRegion* region = gAgent.getRegion();
        if (!region)
        {
                return FALSE;
        }
        
        S32 count = ids.count();

        if( isInviteAllowed() && (count > 0) )
        {
                llinfos << "LLFloaterIMPanel::inviteToSession() - inviting participants" << llendl;

                std::string url = region->getCapability("ChatSessionRequest");

                LLSD data;

                data["params"] = LLSD::emptyArray();
                for (int i = 0; i < count; i++)
                {
                        data["params"].append(ids.get(i));
                }

                data["method"] = "invite";
                data["session-id"] = mSessionUUID;
                LLHTTPClient::post(
                        url,
                        data,
                        new LLSessionInviteResponder(
                                mSessionUUID));         
        }
        else
        {
                llinfos << "LLFloaterIMPanel::inviteToSession -"
                                << " no need to invite agents for "
                                << mDialog << llendl;
                // successful add, because everyone that needed to get added
                // was added.
        }

        return TRUE;
}

void LLFloaterIMPanel::addHistoryLine(const std::string &utf8msg, const LLColor4& color, bool log_to_file, const LLUUID& source, const char *name)
{
        // start tab flashing when receiving im for background session from user
        if (source != LLUUID::null)
        {
                LLMultiFloater* hostp = getHost();
                if( !isInVisibleChain() 
                        && hostp 
                        && source != gAgent.getID())
                {
                        hostp->setFloaterFlashing(this, TRUE);
                }
        }

        // Now we're adding the actual line of text, so erase the 
        // "Foo is typing..." text segment, and the optional timestamp
        // if it was present. JC
        removeTypingIndicator(NULL);

        // Actually add the line
        LLString timestring;
        bool prepend_newline = true;
        if (gSavedSettings.getBOOL("IMShowTimestamps"))
        {
                timestring = mHistoryEditor->appendTime(prepend_newline);
                prepend_newline = false;
        }

        // 'name' is a sender name that we want to hotlink so that clicking on it opens a profile.
        if (name != NULL) // If name exists, then add it to the front of the message.
        {
                // Don't hotlink any messages from the system (e.g. "Second Life:"), so just add those in plain text.
                if (!strcmp(name,SYSTEM_FROM))
                {
                        mHistoryEditor->appendColoredText(name,false,false,color);
                }
                else
                {
                        // Convert the name to a hotlink and add to message.
                        const LLStyleSP &source_style = LLStyleMap::instance().lookup(source);
                        mHistoryEditor->appendStyledText(name, false, false, &source_style);
                }
        }
        mHistoryEditor->appendColoredText(utf8msg, false, prepend_newline, color);
        
        if (log_to_file
                && gSavedPerAccountSettings.getBOOL("LogInstantMessages") ) 
        {
                LLString histstr;
                if (gSavedPerAccountSettings.getBOOL("IMLogTimestamp"))
                        histstr = LLLogChat::timestamp(gSavedPerAccountSettings.getBOOL("LogTimestampDate")) + LLString(name) + utf8msg;
                else
                        histstr = LLString(name) + utf8msg;

                LLLogChat::saveHistory(getTitle(),histstr);
        }

        if (!isInVisibleChain())
        {
                mNumUnreadMessages++;
        }

        if (source != LLUUID::null)
        {
                mSpeakers->speakerChatted(source);
                mSpeakers->setSpeakerTyping(source, FALSE);
        }
}


void LLFloaterIMPanel::setVisible(BOOL b)
{
        LLPanel::setVisible(b);

        LLMultiFloater* hostp = getHost();
        if( b && hostp )
        {
                hostp->setFloaterFlashing(this, FALSE);

                /* Don't change containing floater title - leave it "Instant Message" JC
                LLUIString title = sTitleString;
                title.setArg("[NAME]", mSessionLabel);
                hostp->setTitle( title );
                */
        }
}


void LLFloaterIMPanel::setInputFocus( BOOL b )
{
        mInputEditor->setFocus( b );
}


void LLFloaterIMPanel::selectAll()
{
        mInputEditor->selectAll();
}


void LLFloaterIMPanel::selectNone()
{
        mInputEditor->deselect();
}


BOOL LLFloaterIMPanel::handleKeyHere( KEY key, MASK mask )
{
        BOOL handled = FALSE;
        if( KEY_RETURN == key && mask == MASK_NONE)
        {
                sendMsg();
                handled = TRUE;

                // Close talk panels on hitting return
                // but not shift-return or control-return
                if ( !gSavedSettings.getBOOL("PinTalkViewOpen") && !(mask & MASK_CONTROL) && !(mask & MASK_SHIFT) )
                {
                        gIMMgr->toggle(NULL);
                }
        }
        else if ( KEY_ESCAPE == key )
        {
                handled = TRUE;
                gFocusMgr.setKeyboardFocus(NULL);

                // Close talk panel with escape
                if( !gSavedSettings.getBOOL("PinTalkViewOpen") )
                {
                        gIMMgr->toggle(NULL);
                }
        }

        // May need to call base class LLPanel::handleKeyHere if not handled
        // in order to tab between buttons.  JNC 1.2.2002
        return handled;
}

BOOL LLFloaterIMPanel::handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop,
                                                                  EDragAndDropType cargo_type,
                                                                  void* cargo_data,
                                                                  EAcceptance* accept,
                                                                  LLString& tooltip_msg)
{
        BOOL accepted = FALSE;
        switch(cargo_type)
        {
        case DAD_CALLINGCARD:
                accepted = dropCallingCard((LLInventoryItem*)cargo_data, drop);
                break;
        case DAD_CATEGORY:
                accepted = dropCategory((LLInventoryCategory*)cargo_data, drop);
                break;
        default:
                break;
        }
        if (accepted)
        {
                *accept = ACCEPT_YES_MULTI;
        }
        else
        {
                *accept = ACCEPT_NO;
        }
        return TRUE;
} 

BOOL LLFloaterIMPanel::dropCallingCard(LLInventoryItem* item, BOOL drop)
{
        BOOL rv = isInviteAllowed();
        if(rv && item && item->getCreatorUUID().notNull())
        {
                if(drop)
                {
                        LLDynamicArray<LLUUID> ids;
                        ids.put(item->getCreatorUUID());
                        inviteToSession(ids);
                }
        }
        else
        {
                // set to false if creator uuid is null.
                rv = FALSE;
        }
        return rv;
}

BOOL LLFloaterIMPanel::dropCategory(LLInventoryCategory* category, BOOL drop)
{
        BOOL rv = isInviteAllowed();
        if(rv && category)
        {
                LLInventoryModel::cat_array_t cats;
                LLInventoryModel::item_array_t items;
                LLUniqueBuddyCollector buddies;
                gInventory.collectDescendentsIf(category->getUUID(),
                                                                                cats,
                                                                                items,
                                                                                LLInventoryModel::EXCLUDE_TRASH,
                                                                                buddies);
                S32 count = items.count();
                if(count == 0)
                {
                        rv = FALSE;
                }
                else if(drop)
                {
                        LLDynamicArray<LLUUID> ids;
                        for(S32 i = 0; i < count; ++i)
                        {
                                ids.put(items.get(i)->getCreatorUUID());
                        }
                        inviteToSession(ids);
                }
        }
        return rv;
}

BOOL LLFloaterIMPanel::isInviteAllowed() const
{

        return ( (IM_SESSION_CONFERENCE_START == mDialog) 
                         || (IM_SESSION_INVITE == mDialog) );
}


// static
void LLFloaterIMPanel::onTabClick(void* userdata)
{
        LLFloaterIMPanel* self = (LLFloaterIMPanel*) userdata;
        self->setInputFocus(TRUE);
}


// static
void LLFloaterIMPanel::onClickProfile( void* userdata )
{
        //  Bring up the Profile window
        LLFloaterIMPanel* self = (LLFloaterIMPanel*) userdata;
        
        if (self->mOtherParticipantUUID.notNull())
        {
                LLFloaterAvatarInfo::showFromDirectory(self->getOtherParticipantID());
        }
}

// static
void LLFloaterIMPanel::onClickGroupInfo( void* userdata )
{
        //  Bring up the Profile window
        LLFloaterIMPanel* self = (LLFloaterIMPanel*) userdata;

        LLFloaterGroupInfo::showFromUUID(self->mSessionUUID);
}

// static
void LLFloaterIMPanel::onClickClose( void* userdata )
{
        LLFloaterIMPanel* self = (LLFloaterIMPanel*) userdata;
        if(self)
        {
                self->close();
        }
}

// static
void LLFloaterIMPanel::onClickStartCall(void* userdata)
{
        LLFloaterIMPanel* self = (LLFloaterIMPanel*) userdata;

        self->mVoiceChannel->activate();
}

// static
void LLFloaterIMPanel::onClickEndCall(void* userdata)
{
        LLFloaterIMPanel* self = (LLFloaterIMPanel*) userdata;

        self->getVoiceChannel()->deactivate();
}

// static
void LLFloaterIMPanel::onClickSend(void* userdata)
{
        LLFloaterIMPanel* self = (LLFloaterIMPanel*)userdata;
        self->sendMsg();
}

// static
void LLFloaterIMPanel::onClickToggleActiveSpeakers(void* userdata)
{
        LLFloaterIMPanel* self = (LLFloaterIMPanel*)userdata;

        self->childSetVisible("active_speakers_panel", !self->childIsVisible("active_speakers_panel"));
}

// static
void LLFloaterIMPanel::onCommitChat(LLUICtrl* caller, void* userdata)
{
        LLFloaterIMPanel* self= (LLFloaterIMPanel*) userdata;
        self->sendMsg();
}

// static
void LLFloaterIMPanel::onInputEditorFocusReceived( LLFocusableElement* caller, void* userdata )
{
        LLFloaterIMPanel* self= (LLFloaterIMPanel*) userdata;
        self->mHistoryEditor->setCursorAndScrollToEnd();
}

// static
void LLFloaterIMPanel::onInputEditorFocusLost(LLFocusableElement* caller, void* userdata)
{
        LLFloaterIMPanel* self = (LLFloaterIMPanel*) userdata;
        self->setTyping(FALSE);
}

// static
void LLFloaterIMPanel::onInputEditorKeystroke(LLLineEditor* caller, void* userdata)
{
        LLFloaterIMPanel* self = (LLFloaterIMPanel*)userdata;
        LLString text = self->mInputEditor->getText();
        if (!text.empty())
        {
                self->setTyping(TRUE);
        }
        else
        {
                // Deleting all text counts as stopping typing.
                self->setTyping(FALSE);
        }
}

void LLFloaterIMPanel::onClose(bool app_quitting)
{
        setTyping(FALSE);

        if(mSessionUUID.notNull())
        {
                std::string name;
                gAgent.buildFullname(name);
                pack_instant_message(
                        gMessageSystem,
                        gAgent.getID(),
                        FALSE,
                        gAgent.getSessionID(),
                        mOtherParticipantUUID,
                        name.c_str(), 
                        "",
                        IM_ONLINE,
                        IM_SESSION_LEAVE,
                        mSessionUUID);
                gAgent.sendReliableMessage();
        }
        gIMMgr->removeSession(mSessionUUID);

        destroy();
}

void LLFloaterIMPanel::onVisibilityChange(BOOL new_visibility)
{
        if (new_visibility)
        {
                mNumUnreadMessages = 0;
        }
}

void deliver_message(const std::string& utf8_text,
                                         const LLUUID& im_session_id,
                                         const LLUUID& other_participant_id,
                                         EInstantMessage dialog)
{
        std::string name;
        gAgent.buildFullname(name);

        const LLRelationship* info = NULL;
        info = LLAvatarTracker::instance().getBuddyInfo(other_participant_id);
        U8 offline = (!info || info->isOnline()) ? IM_ONLINE : IM_OFFLINE;

        // default to IM_SESSION_SEND unless it's nothing special - in
        // which case it's probably an IM to everyone.
        U8 new_dialog = dialog;

        if ( dialog != IM_NOTHING_SPECIAL )
        {
                new_dialog = IM_SESSION_SEND;
        }

        pack_instant_message(
                gMessageSystem,
                gAgent.getID(),
                FALSE,
                gAgent.getSessionID(),
                other_participant_id,
                name.c_str(),
                utf8_text.c_str(),
                offline,
                (EInstantMessage)new_dialog,
                im_session_id);
        gAgent.sendReliableMessage();

        if (LLMuteList::getInstance())
        {
                LLMuteList::getInstance()->autoRemove(other_participant_id, LLMuteList::AR_IM);
        }
}

void LLFloaterIMPanel::sendMsg()
{
        LLWString text = mInputEditor->getWText();
        LLWString::trim(text);
        if (!gAgent.isGodlike() 
                && (mDialog == IM_NOTHING_SPECIAL)
                && mOtherParticipantUUID.isNull())
        {
                llinfos << "Cannot send IM to everyone unless you're a god." << llendl;
                return;
        }
        if(text.length() > 0)
        {
                // Truncate and convert to UTF8 for transport
                std::string utf8_text = wstring_to_utf8str(text);
                utf8_text = utf8str_truncate(utf8_text, MAX_MSG_BUF_SIZE - 1);

                if ( mSessionInitialized )
                {
                        deliver_message(utf8_text,
                                                        mSessionUUID,
                                                        mOtherParticipantUUID,
                                                        mDialog);

                        // local echo
                        if((mDialog == IM_NOTHING_SPECIAL) && 
                           (mOtherParticipantUUID.notNull()))
                        {
                                std::string history_echo;
                                gAgent.buildFullname(history_echo);

                                // Look for IRC-style emotes here.
                                char tmpstr[5];         /* Flawfinder: ignore */
                                strncpy(tmpstr,
                                                utf8_text.substr(0,4).c_str(),
                                                sizeof(tmpstr) -1);             /* Flawfinder: ignore */
                                tmpstr[sizeof(tmpstr) -1] = '\0';
                                if (!strncmp(tmpstr, "/me ", 4) || 
                                        !strncmp(tmpstr, "/me'", 4))
                                {
                                        utf8_text.replace(0,3,"");
                                }
                                else
                                {
                                        history_echo += ": ";
                                }
                                history_echo += utf8_text;

                                BOOL other_was_typing = mOtherTyping;

                                addHistoryLine(history_echo, gSavedSettings.getColor("IMChatColor"), true, gAgent.getID());

                                if (other_was_typing) 
                                {
                                        addTypingIndicator(mOtherTypingName);
                                }

                        }
                }
                else
                {
                        //queue up the message to send once the session is
                        //initialized
                        mQueuedMsgsForInit.append(utf8_text);
                }

                LLViewerStats::getInstance()->incStat(LLViewerStats::ST_IM_COUNT);
        }
        mInputEditor->setText(LLString::null);

        // Don't need to actually send the typing stop message, the other
        // client will infer it from receiving the message.
        mTyping = FALSE;
        mSentTypingState = TRUE;
}

void LLFloaterIMPanel::updateSpeakersList(const LLSD& speaker_updates)
{
        mSpeakers->updateSpeakers(speaker_updates); 
}

void LLFloaterIMPanel::processSessionUpdate(const LLSD& session_update)
{
        if (
                session_update.has("moderated_mode") &&
                session_update["moderated_mode"].has("voice") )
        {
                BOOL voice_moderated = session_update["moderated_mode"]["voice"];

                if (voice_moderated)
                {
                        setTitle(mSessionLabel + LLString(" ") + getString("moderated_chat_label"));
                }
                else
                {
                        setTitle(mSessionLabel);
                }


                //update the speakers dropdown too
                mSpeakerPanel->setVoiceModerationCtrlMode(voice_moderated);
        }
}

void LLFloaterIMPanel::setSpeakers(const LLSD& speaker_list)
{
        mSpeakers->setSpeakers(speaker_list);
}

void LLFloaterIMPanel::sessionInitReplyReceived(const LLUUID& session_id)
{
        mSessionUUID = session_id;
        mVoiceChannel->updateSessionID(session_id);
        mSessionInitialized = TRUE;

        //we assume the history editor hasn't moved at all since
        //we added the starting session message
        //so, we count how many characters to remove
        S32 chars_to_remove = mHistoryEditor->getWText().length() -
                mSessionStartMsgPos;
        mHistoryEditor->removeTextFromEnd(chars_to_remove);

        //and now, send the queued msg
        LLSD::array_iterator iter;
        for ( iter = mQueuedMsgsForInit.beginArray();
                  iter != mQueuedMsgsForInit.endArray();
                  ++iter)
        {
                deliver_message(
                        iter->asString(),
                        mSessionUUID,
                        mOtherParticipantUUID,
                        mDialog);
        }
}

void LLFloaterIMPanel::requestAutoConnect()
{
        mAutoConnect = TRUE;
}

void LLFloaterIMPanel::setTyping(BOOL typing)
{
        if (typing)
        {
                // Every time you type something, reset this timer
                mLastKeystrokeTimer.reset();

                if (!mTyping)
                {
                        // You just started typing.
                        mFirstKeystrokeTimer.reset();

                        // Will send typing state after a short delay.
                        mSentTypingState = FALSE;
                }

                mSpeakers->setSpeakerTyping(gAgent.getID(), TRUE);
        }
        else
        {
                if (mTyping)
                {
                        // you just stopped typing, send state immediately
                        sendTypingState(FALSE);
                        mSentTypingState = TRUE;
                }
                mSpeakers->setSpeakerTyping(gAgent.getID(), FALSE);
        }

        mTyping = typing;
}

void LLFloaterIMPanel::sendTypingState(BOOL typing)
{
        // Don't want to send typing indicators to multiple people, potentially too
        // much network traffic.  Only send in person-to-person IMs.
        if (mDialog != IM_NOTHING_SPECIAL) return;

        std::string name;
        gAgent.buildFullname(name);

        pack_instant_message(
                gMessageSystem,
                gAgent.getID(),
                FALSE,
                gAgent.getSessionID(),
                mOtherParticipantUUID,
                name.c_str(),
                "typing",
                IM_ONLINE,
                (typing ? IM_TYPING_START : IM_TYPING_STOP),
                mSessionUUID);
        gAgent.sendReliableMessage();
}

void LLFloaterIMPanel::processIMTyping(const LLIMInfo* im_info, BOOL typing)
{
        if (typing)
        {
                // other user started typing
                addTypingIndicator(im_info->mName);
        }
        else
        {
                // other user stopped typing
                removeTypingIndicator(im_info);
        }
}


void LLFloaterIMPanel::addTypingIndicator(const std::string &name)
{
        // we may have lost a "stop-typing" packet, don't add it twice
        if (!mOtherTyping)
        {
                mTypingLineStartIndex = mHistoryEditor->getWText().length();
                LLUIString typing_start = sTypingStartString;
                typing_start.setArg("[NAME]", name);
                addHistoryLine(typing_start, gSavedSettings.getColor4("SystemChatColor"), false);
                mOtherTypingName = name;
                mOtherTyping = TRUE;
        }
        // MBW -- XXX -- merge from release broke this (argument to this function changed from an LLIMInfo to a name)
        // Richard will fix.
//      mSpeakers->setSpeakerTyping(im_info->mFromID, TRUE);
}


void LLFloaterIMPanel::removeTypingIndicator(const LLIMInfo* im_info)
{
        if (mOtherTyping)
        {
                // Must do this first, otherwise addHistoryLine calls us again.
                mOtherTyping = FALSE;

                S32 chars_to_remove = mHistoryEditor->getWText().length() - mTypingLineStartIndex;
                mHistoryEditor->removeTextFromEnd(chars_to_remove);
                if (im_info)
                {
                        mSpeakers->setSpeakerTyping(im_info->mFromID, FALSE);
                }
        }
}

//static
void LLFloaterIMPanel::chatFromLogFile(LLLogChat::ELogLineType type, LLString line, void* userdata)
{
        LLFloaterIMPanel* self = (LLFloaterIMPanel*)userdata;
        LLUIString message = line;

        switch (type)
        {
        case LLLogChat::LOG_EMPTY:
                // add warning log enabled message
                message = LLFloaterChat::getInstance()->getUIString("IM_logging_string");
                break;
        case LLLogChat::LOG_END:
                // add log end message
                message = LLFloaterChat::getInstance()->getUIString("IM_logging_string");
                break;
        case LLLogChat::LOG_LINE:
                // just add normal lines from file
                break;
        default:
                // nothing
                break;
        }

        //self->addHistoryLine(line, LLColor4::grey, FALSE);
        self->mHistoryEditor->appendColoredText(message, false, true, LLColor4::grey);
}

void LLFloaterIMPanel::showSessionStartError(
        const std::string& error_string)
{
        //the error strings etc. should be really be static and local
        //to this file instead of in the LLFloaterIM
        //but they were in llimview.cpp first and unfortunately
        //some translations into non English languages already occurred
        //thus making it a tad harder to change over to a
        //"correct" solution.  The best solution
        //would be to store all of the misc. strings into
        //their own XML file which would be read in by any LLIMPanel
        //post build function instead of repeating the same info
        //in the group, adhoc and normal IM xml files.
        LLString::format_map_t args;
        args["[REASON]"] =
                LLFloaterIM::sErrorStringsMap[error_string];
        args["[RECIPIENT]"] = getTitle();

        gViewerWindow->alertXml(
                "ChatterBoxSessionStartError",
                args,
                onConfirmForceCloseError,
                new LLUUID(mSessionUUID));
}

void LLFloaterIMPanel::showSessionEventError(
        const std::string& event_string,
        const std::string& error_string)
{
        LLString::format_map_t args;
        args["[REASON]"] =
                LLFloaterIM::sErrorStringsMap[error_string];
        args["[EVENT]"] =
                LLFloaterIM::sEventStringsMap[event_string];
        args["[RECIPIENT]"] = getTitle();

        gViewerWindow->alertXml(
                "ChatterBoxSessionEventError",
                args);
}

void LLFloaterIMPanel::showSessionForceClose(
        const std::string& reason_string)
{
        LLString::format_map_t args;

        args["[NAME]"] = getTitle();
        args["[REASON]"] = LLFloaterIM::sForceCloseSessionMap[reason_string];

        gViewerWindow->alertXml(
                "ForceCloseChatterBoxSession",
                args,
                LLFloaterIMPanel::onConfirmForceCloseError,
                this);

}

//static 
void LLFloaterIMPanel::onKickSpeaker(void* user_data)
{

}

void LLFloaterIMPanel::onConfirmForceCloseError(S32 option, void* data)
{
        //only 1 option really
        LLUUID session_id = *((LLUUID*) data);

        if ( gIMMgr )
        {
                LLFloaterIMPanel* floaterp = gIMMgr->findFloaterBySession(
                        session_id);

                if ( floaterp ) floaterp->close(FALSE);
        }
}

---