llimview.cpp

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#include "llviewerprecompiledheaders.h"

#include "llimview.h"

#include "llfontgl.h"
#include "llrect.h"
#include "llerror.h"
#include "llbutton.h"
#include "llhttpclient.h"
#include "llsdutil.h"
#include "llstring.h"
#include "linked_lists.h"
#include "llvieweruictrlfactory.h"

#include "llagent.h"
#include "llcallingcard.h"
#include "llchat.h"
#include "llviewerwindow.h"
#include "llresmgr.h"
#include "llfloaterchat.h"
#include "llfloaterchatterbox.h"
#include "llfloaternewim.h"
#include "llhttpnode.h"
#include "llimpanel.h"
#include "llresizebar.h"
#include "lltabcontainer.h"
#include "viewer.h"
#include "llfloater.h"
#include "llmutelist.h"
#include "llresizehandle.h"
#include "llkeyboard.h"
#include "llui.h"
#include "llviewermenu.h"
#include "llcallingcard.h"
#include "lltoolbar.h"
#include "llviewermessage.h"
#include "llnotify.h"
#include "llviewerregion.h"

#include "llfirstuse.h"

const EInstantMessage GROUP_DIALOG = IM_SESSION_GROUP_START;
const EInstantMessage DEFAULT_DIALOG = IM_NOTHING_SPECIAL;

//
// Globals
//
LLIMMgr* gIMMgr = NULL;

//
// Statics
//
//*FIXME: make these all either UIStrings or Strings
static LLString sOnlyUserMessage;
static LLUIString sOfflineMessage;

static std::map<std::string,LLString> sEventStringsMap;
static std::map<std::string,LLString> sErrorStringsMap;
static std::map<std::string,LLString> sForceCloseSessionMap;
static LLUIString sInviteMessage;
//
// Helper Functions
//

// returns true if a should appear before b
//static BOOL group_dictionary_sort( LLGroupData* a, LLGroupData* b )
//{
//      return (LLString::compareDict( a->mName, b->mName ) < 0);
//}


// the other_participant_id is either an agent_id, a group_id, or an inventory
// folder item_id (collection of calling cards)

// static
LLUUID LLIMMgr::computeSessionID(
        EInstantMessage dialog,
        const LLUUID& other_participant_id)
{
        LLUUID session_id;
        if (IM_SESSION_GROUP_START == dialog)
        {
                // slam group session_id to the group_id (other_participant_id)
                session_id = other_participant_id;
        }
        else if (IM_SESSION_CONFERENCE_START == dialog)
        {
                session_id.generate();
        }
        else if (IM_SESSION_INVITE == dialog)
        {
                // use provided session id for invites
                session_id = other_participant_id;
        }
        else
        {
                LLUUID agent_id = gAgent.getID();
                if (other_participant_id == agent_id)
                {
                        // if we try to send an IM to ourselves then the XOR would be null
                        // so we just make the session_id the same as the agent_id
                        session_id = agent_id;
                }
                else
                {
                        // peer-to-peer or peer-to-asset session_id is the XOR
                        session_id = other_participant_id ^ agent_id;
                }
        }
        return session_id;
}

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// LLFloaterIM
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

LLFloaterIM::LLFloaterIM() 
{
        // autoresize=false is necessary to avoid resizing of the IM window whenever 
        // a session is opened or closed (it would otherwise resize the window to match
        // the size of the im-sesssion when they were created.  This happens in 
        // LLMultiFloater::resizeToContents() when called through LLMultiFloater::addFloater())
        this->mAutoResize = FALSE;
        gUICtrlFactory->buildFloater(this, "floater_im.xml");
}

BOOL LLFloaterIM::postBuild()
{
        sOnlyUserMessage = getFormattedUIString("only_user_message");
        sOfflineMessage = getUIString("offline_message");

        sErrorStringsMap["generic"] =
                getFormattedUIString("generic_request_error");
        sErrorStringsMap["unverified"] =
                getFormattedUIString("insufficient_perms_error");
        sErrorStringsMap["no_user_911"] =
                getFormattedUIString("user_no_help");

        sEventStringsMap["add"] =
                getFormattedUIString("add_session_event");
        sEventStringsMap["message"] =
                getFormattedUIString("message_session_event");

        sForceCloseSessionMap["removed"] =
                getFormattedUIString("removed_from_group");

        sInviteMessage = getUIString("invite_message");
        return TRUE;
}

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Class LLIMViewFriendObserver
//
// Bridge to suport knowing when the inventory has changed.
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

class LLIMViewFriendObserver : public LLFriendObserver
{
public:
        LLIMViewFriendObserver(LLIMMgr* tv) : mTV(tv) {}
        virtual ~LLIMViewFriendObserver() {}
        virtual void changed(U32 mask)
        {
                if(mask & (LLFriendObserver::ADD | LLFriendObserver::REMOVE | LLFriendObserver::ONLINE))
                {
                        mTV->refresh();
                }
        }
protected:
        LLIMMgr* mTV;
};


class LLIMMgr::LLIMSessionInvite
{
public:
        LLIMSessionInvite(const LLUUID& session_id, const LLString& session_name, const LLUUID& caller_id,const LLString& caller_name, EInstantMessage type, const LLString& session_handle, const LLString& notify_box) : 
                                                mSessionID(session_id),
                                                mSessionName(session_name),
                                                mCallerID(caller_id),
                                                mCallerName(caller_name),
                                                mType(type),
                                                mSessionHandle(session_handle),
                                                mNotifyBox(notify_box)
                                                {};

        LLUUID          mSessionID;
        LLString        mSessionName;
        LLUUID          mCallerID;
        LLString        mCallerName;
        EInstantMessage mType;
        LLString        mSessionHandle;
        LLString        mNotifyBox;
};


//
// Public Static Member Functions
//

// This is a helper function to determine what kind of im session
// should be used for the given agent.
// static
EInstantMessage LLIMMgr::defaultIMTypeForAgent(const LLUUID& agent_id)
{
        EInstantMessage type = IM_NOTHING_SPECIAL;
        if(is_agent_friend(agent_id))
        {
                if(LLAvatarTracker::instance().isBuddyOnline(agent_id))
                {
                        type = IM_SESSION_CONFERENCE_START;
                }
        }
        return type;
}

// static
//void LLIMMgr::onPinButton(void*)
//{
//      BOOL state = gSavedSettings.getBOOL( "PinTalkViewOpen" );
//      gSavedSettings.setBOOL( "PinTalkViewOpen", !state );
//}

// static 
void LLIMMgr::toggle(void*)
{
        static BOOL return_to_mouselook = FALSE;

        // Hide the button and show the floater or vice versa.
        llassert( gIMMgr );
        BOOL old_state = gIMMgr->getFloaterOpen();
        
        // If we're in mouselook and we triggered the Talk View, we want to talk.
        if( gAgent.cameraMouselook() && old_state )
        {
                return_to_mouselook = TRUE;
                gAgent.changeCameraToDefault();
                return;
        }

        BOOL new_state = !old_state;

        if (new_state)
        {
                // ...making visible
                if ( gAgent.cameraMouselook() )
                {
                        return_to_mouselook = TRUE;
                        gAgent.changeCameraToDefault();
                }
        }
        else
        {
                // ...hiding
                if ( gAgent.cameraThirdPerson() && return_to_mouselook )
                {
                        gAgent.changeCameraToMouselook();
                }
                return_to_mouselook = FALSE;
        }

        gIMMgr->setFloaterOpen( new_state );
}

//
// Member Functions
//

LLIMMgr::LLIMMgr() :
        mFriendObserver(NULL),
        mIMReceived(FALSE)
{
        mFriendObserver = new LLIMViewFriendObserver(this);
        LLAvatarTracker::instance().addObserver(mFriendObserver);

        //*HACK: use floater to initialize string constants from xml file
        // then delete it right away
        LLFloaterIM* dummy_floater = new LLFloaterIM();
        delete dummy_floater;

        mPendingVoiceInvitations = LLSD::emptyMap();
        mPendingAgentListUpdates = LLSD::emptyMap();
}

LLIMMgr::~LLIMMgr()
{
        LLAvatarTracker::instance().removeObserver(mFriendObserver);
        delete mFriendObserver;
        // Children all cleaned up by default view destructor.
}

// Add a message to a session. 
void LLIMMgr::addMessage(
        const LLUUID& session_id,
        const LLUUID& target_id,
        const char* from,
        const char* msg,
        const char* session_name,
        EInstantMessage dialog,
        U32 parent_estate_id,
        const LLUUID& region_id,
        const LLVector3& position)
{
        LLUUID other_participant_id = target_id;
        bool is_from_system = target_id.isNull();

        // don't process muted IMs
        if (gMuteListp->isMuted(
                        other_participant_id,
                        LLMute::flagTextChat) && !gMuteListp->isLinden(from))
        {
                return;
        }

        //not sure why...but if it is from ourselves we set the target_id
        //to be NULL
        if( other_participant_id == gAgent.getID() )
        {
                other_participant_id = LLUUID::null;
        }

        LLFloaterIMPanel* floater;
        LLUUID new_session_id = session_id;
        if (new_session_id.isNull())
        {
                //no session ID...compute new one
                new_session_id = computeSessionID(dialog, other_participant_id);
        }
        floater = findFloaterBySession(new_session_id);
        if (!floater)
        {
                floater = findFloaterBySession(other_participant_id);
                if (floater)
                {
                        llinfos << "found the IM session " << session_id 
                                << " by participant " << other_participant_id << llendl;
                }
        }

        // create IM window as necessary
        if(!floater)
        {
                const char* name = from;
                if(session_name && (strlen(session_name)>1))
                {
                        name = session_name;
                }

                
                floater = createFloater(
                        new_session_id,
                        other_participant_id,
                        name,
                        dialog,
                        FALSE);

                // When we get a new IM, and if you are a god, display a bit
                // of information about the source. This is to help liaisons
                // when answering questions.
                if(gAgent.isGodlike())
                {
                        // *TODO:translate (low priority, god ability)
                        std::ostringstream bonus_info;
                        bonus_info << "*** parent estate: "
                                << parent_estate_id
                                << ((parent_estate_id == 1) ? ", mainland" : "")
                                << ((parent_estate_id == 5) ? ", teen" : "");

                        // once we have web-services (or something) which returns
                        // information about a region id, we can print this out
                        // and even have it link to map-teleport or something.
                        //<< "*** region_id: " << region_id << std::endl
                        //<< "*** position: " << position << std::endl;

                        floater->addHistoryLine(bonus_info.str(), gSavedSettings.getColor4("SystemChatColor"));
                }

                make_ui_sound("UISndNewIncomingIMSession");
        }

        // now add message to floater
        if ( is_from_system ) // chat came from system
        {
                floater->addHistoryLine(
                        other_participant_id,
                        msg,
                        gSavedSettings.getColor4("SystemChatColor"));
        }
        else
        {
                floater->addHistoryLine(other_participant_id, msg);
        }

        LLFloaterChatterBox* chat_floater = LLFloaterChatterBox::getInstance(LLSD());

        if( !chat_floater->getVisible() && !floater->getVisible())
        {
                //if the IM window is not open and the floater is not visible (i.e. not torn off)
                LLFloater* previouslyActiveFloater = chat_floater->getActiveFloater();

                // select the newly added floater (or the floater with the new line added to it).
                // it should be there.
                chat_floater->selectFloater(floater);

                //there was a previously unseen IM, make that old tab flashing
                //it is assumed that the most recently unseen IM tab is the one current selected/active
                if ( previouslyActiveFloater && getIMReceived() )
                {
                        chat_floater->setFloaterFlashing(previouslyActiveFloater, TRUE);
                }

                //notify of a new IM
                notifyNewIM();
        }
}

void LLIMMgr::addSystemMessage(const LLUUID& session_id, const LLString& message_name, const LLString::format_map_t& args)
{
        LLUIString message;
        
        // null session id means near me (chat history)
        if (session_id.isNull())
        {
                LLFloaterChat* floaterp = LLFloaterChat::getInstance();

                message = floaterp->getUIString(message_name);
                message.setArgList(args);

                LLChat chat(message);
                chat.mSourceType = CHAT_SOURCE_SYSTEM;
                LLFloaterChat::getInstance()->addChatHistory(chat);
        }
        else // going to IM session
        {
                LLFloaterIMPanel* floaterp = findFloaterBySession(session_id);
                if (floaterp)
                {
                        message = floaterp->getUIString(message_name);
                        message.setArgList(args);

                        gIMMgr->addMessage(session_id, LLUUID::null, SYSTEM_FROM, message.getString().c_str());
                }
        }
}

void LLIMMgr::notifyNewIM()
{
        if(!gIMMgr->getFloaterOpen())
        {
                mIMReceived = TRUE;
        }
}

void LLIMMgr::clearNewIMNotification()
{
        mIMReceived = FALSE;
}

BOOL LLIMMgr::getIMReceived() const
{
        return mIMReceived;
}

// This method returns TRUE if the local viewer has a session
// currently open keyed to the uuid. 
BOOL LLIMMgr::isIMSessionOpen(const LLUUID& uuid)
{
        LLFloaterIMPanel* floater = findFloaterBySession(uuid);
        if(floater) return TRUE;
        return FALSE;
}

LLUUID LLIMMgr::addP2PSession(const std::string& name,
                                                        const LLUUID& other_participant_id,
                                                        const LLString& voice_session_handle)
{
        LLUUID session_id = addSession(name, IM_NOTHING_SPECIAL, other_participant_id);

        LLFloaterIMPanel* floater = findFloaterBySession(session_id);
        if(floater)
        {
                LLVoiceChannelP2P* voice_channelp = (LLVoiceChannelP2P*)floater->getVoiceChannel();
                voice_channelp->setSessionHandle(voice_session_handle);
        }

        return session_id;
}

// This adds a session to the talk view. The name is the local name of
// the session, dialog specifies the type of session. If the session
// exists, it is brought forward.  Specifying id = NULL results in an
// im session to everyone. Returns the uuid of the session.
LLUUID LLIMMgr::addSession(const std::string& name,
                                                        EInstantMessage dialog,
                                                        const LLUUID& other_participant_id)
{
        LLUUID session_id = computeSessionID(dialog, other_participant_id);

        LLFloaterIMPanel* floater = findFloaterBySession(session_id);
        if(!floater)
        {
                LLDynamicArray<LLUUID> ids;
                ids.put(other_participant_id);

                floater = createFloater(session_id,
                                                                other_participant_id,
                                                                name,
                                                                ids,
                                                                dialog,
                                                                TRUE);

                noteOfflineUsers(floater, ids);
                LLFloaterChatterBox::getInstance(LLSD())->showFloater(floater);
        }
        else
        {
                floater->open();
        }
        //mTabContainer->selectTabPanel(panel);
        floater->setInputFocus(TRUE);
        return floater->getSessionID();
}

// Adds a session using the given session_id.  If the session already exists 
// the dialog type is assumed correct. Returns the uuid of the session.
LLUUID LLIMMgr::addSession(const std::string& name,
                                                        EInstantMessage dialog,
                                                        const LLUUID& other_participant_id,
                                                        const LLDynamicArray<LLUUID>& ids)
{
        if (0 == ids.getLength())
        {
                return LLUUID::null;
        }

        LLUUID session_id = computeSessionID(dialog,
                                                                                   other_participant_id);

        LLFloaterIMPanel* floater = findFloaterBySession(session_id);
        if(!floater)
        {
                // On creation, use the first element of ids as the
                // "other_participant_id"
                floater = createFloater(session_id,
                                                                other_participant_id,
                                                                name,
                                                                ids,
                                                                dialog,
                                                                TRUE);

                if ( !floater ) return LLUUID::null;

                noteOfflineUsers(floater, ids);
        }
        LLFloaterChatterBox::getInstance(LLSD())->showFloater(floater);
        //mTabContainer->selectTabPanel(panel);
        floater->setInputFocus(TRUE);
        return floater->getSessionID();
}

// This removes the panel referenced by the uuid, and then restores
// internal consistency. The internal pointer is not deleted.
void LLIMMgr::removeSession(const LLUUID& session_id)
{
        LLFloaterIMPanel* floater = findFloaterBySession(session_id);
        if(floater)
        {
                mFloaters.erase(floater->getHandle());
                LLFloaterChatterBox::getInstance(LLSD())->removeFloater(floater);
                //mTabContainer->removeTabPanel(floater);
        }
}

void LLIMMgr::inviteToSession(
        const LLUUID& session_id, 
        const LLString& session_name, 
        const LLUUID& caller_id, 
        const LLString& caller_name,
        EInstantMessage type,
        const LLString& session_handle)
{
        //ignore voice invites from voice-muted residents
        if (gMuteListp->isMuted(caller_id))
        {
                return;
        }

        LLString notify_box_type;

        BOOL ad_hoc_invite = FALSE;
        if(type == IM_SESSION_P2P_INVITE)
        {
                notify_box_type = "VoiceInviteP2P";
        }
        else if (gAgent.isInGroup(session_id))
        {
                notify_box_type = "VoiceInviteGroup";
        }
        else    
        {
                notify_box_type = "VoiceInviteAdHoc";
                ad_hoc_invite = TRUE;
        }

        LLIMSessionInvite* invite = new LLIMSessionInvite(
                session_id,
                session_name,
                caller_id,
                caller_name,
                type,
                session_handle,
                notify_box_type);
        
        LLVoiceChannel* channelp = LLVoiceChannel::getChannelByID(session_id);
        if (channelp && channelp->callStarted())
        {
                // you have already started a call to the other user, so just accept the invite
                inviteUserResponse(0, invite);
                return;
        }

        if (type == IM_SESSION_P2P_INVITE || ad_hoc_invite)
        {
                // is the inviter a friend?
                if (LLAvatarTracker::instance().getBuddyInfo(caller_id) == NULL)
                {
                        // if not, and we are ignoring voice invites from non-friends
                        // then silently decline
                        if (gSavedSettings.getBOOL("VoiceCallsFriendsOnly"))
                        {
                                // invite not from a friend, so decline
                                inviteUserResponse(1, invite);
                                return;
                        }
                }
        }

        if ( !mPendingVoiceInvitations.has(session_id.asString()) )
        {
                if (caller_name.empty())
                {
                        gCacheName->getName(caller_id, onInviteNameLookup, invite);
                }
                else
                {
                        LLString::format_map_t args;
                        args["[NAME]"] = caller_name;
                        args["[GROUP]"] = session_name;

                        LLNotifyBox::showXml(notify_box_type, 
                                                                 args, 
                                                                 inviteUserResponse, 
                                                                 (void*)invite);

                }
                mPendingVoiceInvitations[session_id.asString()] = LLSD();
        }
}

//static 
void LLIMMgr::onInviteNameLookup(const LLUUID& id, const char* first, const char* last, BOOL is_group, void* userdata)
{
        LLIMSessionInvite* invite = (LLIMSessionInvite*)userdata;

        invite->mCallerName = llformat("%s %s", first, last);
        invite->mSessionName = invite->mCallerName;

        LLString::format_map_t args;
        args["[NAME]"] = invite->mCallerName;

        LLNotifyBox::showXml(invite->mNotifyBox,
                                                args, 
                                                inviteUserResponse, 
                                                (void*)invite);
}

class LLViewerChatterBoxInvitationAcceptResponder :
        public LLHTTPClient::Responder
{
public:
        LLViewerChatterBoxInvitationAcceptResponder(
                const LLUUID& session_id,
                bool is_voice_invitation)
        {
                mSessionID = session_id;
                mIsVoiceInvitiation = is_voice_invitation;
        }

        void result(const LLSD& content)
        {
                if ( gIMMgr)
                {
                        LLFloaterIMPanel* floaterp =
                                gIMMgr->findFloaterBySession(mSessionID);

                        if (floaterp)
                        {
                                //we've accepted our invitation
                                //and received a list of agents that were
                                //currently in the session when the reply was sent
                                //to us.  Now, it is possible that there were some agents
                                //to slip in/out between when that message was sent to us
                                //and now.

                                //the agent list updates we've received have been
                                //accurate from the time we were added to the session
                                //but unfortunately, our base that we are receiving here
                                //may not be the most up to date.  It was accurate at
                                //some point in time though.
                                floaterp->setSpeakersList(content["agents"]);

                                //we now have our base of users in the session
                                //that was accurate at some point, but maybe not now
                                //so now we apply all of the udpates we've received
                                //in case of race conditions

                                //reapplying a user entrance will do nothing
                                //reapplying a user leaving will not have the user
                                //in our base.  So it's all good
                                floaterp->updateSpeakersList(
                                        gIMMgr->getPendingAgentListUpdates(mSessionID));

                                if ( mIsVoiceInvitiation )
                                {
                                        floaterp->requestAutoConnect();
                                        LLFloaterIMPanel::onClickStartCall(floaterp);
                                        // always open IM window when connecting to voice
                                        LLFloaterChatterBox::showInstance(TRUE);
                                }
                        }

                        gIMMgr->clearPendingAgentListUpdates(mSessionID);
                        if ( mIsVoiceInvitiation )
                        {
                                gIMMgr->clearPendingVoiceInviation(mSessionID);
                        }
                }
        }

        void error(U32 statusNum, const std::string& reason)
        {
                //throw something back to the viewer here?
                if ( gIMMgr && mIsVoiceInvitiation )
                {
                        gIMMgr->clearPendingVoiceInviation(mSessionID);
                }
        }

private:
        LLUUID mSessionID;
        bool mIsVoiceInvitiation;
};

//static
void LLIMMgr::inviteUserResponse(S32 option, void* user_data)
{
        LLIMSessionInvite* invitep = (LLIMSessionInvite*)user_data;

        switch(option) 
        {
        case 0: // accept
                {
                        if (invitep->mType == IM_SESSION_P2P_INVITE)
                        {
                                // create a normal IM session
                                invitep->mSessionID = gIMMgr->addP2PSession(
                                        invitep->mSessionName,
                                        invitep->mCallerID,
                                        invitep->mSessionHandle);

                                LLFloaterIMPanel* im_floater =
                                        gIMMgr->findFloaterBySession(
                                                invitep->mSessionID);
                                if (im_floater)
                                {
                                        im_floater->requestAutoConnect();
                                        LLFloaterIMPanel::onClickStartCall(im_floater);
                                        // always open IM window when connecting to voice
                                        LLFloaterChatterBox::showInstance(TRUE);
                                }
                                
                                gIMMgr->clearPendingVoiceInviation(invitep->mSessionID);
                        }
                        else
                        {
                                gIMMgr->addSession(
                                        invitep->mSessionName,
                                        invitep->mType,
                                        invitep->mSessionID);

                                std::string url = gAgent.getRegion()->getCapability(
                                        "ChatSessionRequest");

                                LLSD data;
                                data["method"] = "accept invitation";
                                data["session-id"] = invitep->mSessionID;
                                LLHTTPClient::post(
                                        url,
                                        data,
                                        new LLViewerChatterBoxInvitationAcceptResponder(
                                                invitep->mSessionID,
                                                true));
                        }
                }
                break;
        case 2: // mute (also implies ignore, so this falls through to the "ignore" case below)
                {
                        // mute the sender of this invite
                        if (!gMuteListp->isMuted(invitep->mCallerID))
                        {
                                LLMute mute(invitep->mCallerID, invitep->mCallerName, LLMute::AGENT);
                                gMuteListp->add(mute);
                        }
                }
        /* FALLTHROUGH */
        
        case 1: // ignore
                {
                        if (invitep->mType == IM_SESSION_P2P_INVITE)
                        {
                                if(gVoiceClient)
                                {
                                        gVoiceClient->declineInvite(invitep->mSessionHandle);
                                }
                        }
                }
                break;
        }

        delete invitep;
}

void LLIMMgr::refresh()
{
}

void LLIMMgr::setFloaterOpen(BOOL set_open)
{
        if (set_open)
        {
                LLFloaterChatterBox::showInstance(LLSD());
        }
        else
        {
                LLFloaterChatterBox::hideInstance(LLSD());
        }
}


BOOL LLIMMgr::getFloaterOpen()
{
        return LLFloaterChatterBox::instanceVisible(LLSD());
}
 
void LLIMMgr::disconnectAllSessions()
{
        LLFloaterIMPanel* floater = NULL;
        std::set<LLViewHandle>::iterator handle_it;
        for(handle_it = mFloaters.begin();
                handle_it != mFloaters.end();
                )
        {
                floater = (LLFloaterIMPanel*)LLFloater::getFloaterByHandle(*handle_it);

                // MUST do this BEFORE calling floater->onClose() because that may remove the item from the set, causing the subsequent increment to crash.
                ++handle_it;

                if (floater)
                {
                        floater->setEnabled(FALSE);
                        floater->close(TRUE);
                }
        }
}


// This method returns the im panel corresponding to the uuid
// provided. The uuid can either be a session id or an agent
// id. Returns NULL if there is no matching panel.
LLFloaterIMPanel* LLIMMgr::findFloaterBySession(const LLUUID& session_id)
{
        LLFloaterIMPanel* rv = NULL;
        std::set<LLViewHandle>::iterator handle_it;
        for(handle_it = mFloaters.begin();
                handle_it != mFloaters.end();
                ++handle_it)
        {
                rv = (LLFloaterIMPanel*)LLFloater::getFloaterByHandle(*handle_it);
                if(rv && session_id == rv->getSessionID())
                {
                        break;
                }
                rv = NULL;
        }
        return rv;
}


BOOL LLIMMgr::hasSession(const LLUUID& session_id)
{
        return (findFloaterBySession(session_id) != NULL);
}

void LLIMMgr::clearPendingVoiceInviation(const LLUUID& session_id)
{
        if ( mPendingVoiceInvitations.has(session_id.asString()) )
        {
                mPendingVoiceInvitations.erase(session_id.asString());
        }
}

LLSD LLIMMgr::getPendingAgentListUpdates(const LLUUID& session_id)
{
        if ( mPendingAgentListUpdates.has(session_id.asString()) )
        {
                return mPendingAgentListUpdates[session_id.asString()];
        }
        else
        {
                return LLSD();
        }
}

void LLIMMgr::addPendingAgentListUpdates(
        const LLUUID& session_id,
        const LLSD& updates)
{
        LLSD::map_const_iterator iter;

        for ( iter = updates.beginMap();
                  iter != updates.endMap();
                  iter++)
        {
                //we only want to include the last update for a given agent
                mPendingAgentListUpdates[session_id.asString()][iter->first] =
                        iter->second;
        }
}

void LLIMMgr::clearPendingAgentListUpdates(const LLUUID& session_id)
{
        if ( mPendingAgentListUpdates.has(session_id.asString()) )
        {
                mPendingAgentListUpdates.erase(session_id.asString());
        }
}

// create a floater and update internal representation for
// consistency. Returns the pointer, caller (the class instance since
// it is a private method) is not responsible for deleting the
// pointer.  Add the floater to this but do not select it.
LLFloaterIMPanel* LLIMMgr::createFloater(
        const LLUUID& session_id,
        const LLUUID& other_participant_id,
        const std::string& session_label,
        EInstantMessage dialog,
        BOOL user_initiated)
{
        if (session_id.isNull())
        {
                llwarns << "Creating LLFloaterIMPanel with null session ID" << llendl;
        }

        llinfos << "LLIMMgr::createFloater: from " << other_participant_id 
                        << " in session " << session_id << llendl;
        LLFloaterIMPanel* floater = new LLFloaterIMPanel(session_label,
                                                                                                         LLRect(),
                                                                                                         session_label,
                                                                                                         session_id,
                                                                                                         other_participant_id,
                                                                                                         dialog);
        LLTabContainerCommon::eInsertionPoint i_pt = user_initiated ? LLTabContainerCommon::RIGHT_OF_CURRENT : LLTabContainerCommon::END;
        LLFloaterChatterBox::getInstance(LLSD())->addFloater(floater, FALSE, i_pt);
        mFloaters.insert(floater->getHandle());
        return floater;
}

LLFloaterIMPanel* LLIMMgr::createFloater(
        const LLUUID& session_id,
        const LLUUID& other_participant_id,
        const std::string& session_label,
        const LLDynamicArray<LLUUID>& ids,
        EInstantMessage dialog,
        BOOL user_initiated)
{
        if (session_id.isNull())
        {
                llwarns << "Creating LLFloaterIMPanel with null session ID" << llendl;
        }

        llinfos << "LLIMMgr::createFloater: from " << other_participant_id 
                        << " in session " << session_id << llendl;
        LLFloaterIMPanel* floater = new LLFloaterIMPanel(session_label,
                                                                                                         LLRect(),
                                                                                                         session_label,
                                                                                                         session_id,
                                                                                                         other_participant_id,
                                                                                                         ids,
                                                                                                         dialog);
        LLTabContainerCommon::eInsertionPoint i_pt = user_initiated ? LLTabContainerCommon::RIGHT_OF_CURRENT : LLTabContainerCommon::END;
        LLFloaterChatterBox::getInstance(LLSD())->addFloater(floater, FALSE, i_pt);
        mFloaters.insert(floater->getHandle());
        return floater;
}

void LLIMMgr::noteOfflineUsers(LLFloaterIMPanel* floater,
                                                                  const LLDynamicArray<LLUUID>& ids)
{
        S32 count = ids.count();
        if(count == 0)
        {
                floater->addHistoryLine(sOnlyUserMessage, gSavedSettings.getColor4("SystemChatColor"));
        }
        else
        {
                const LLRelationship* info = NULL;
                LLAvatarTracker& at = LLAvatarTracker::instance();
                for(S32 i = 0; i < count; ++i)
                {
                        info = at.getBuddyInfo(ids.get(i));
                        char first[DB_FIRST_NAME_BUF_SIZE];             /*Flawfinder: ignore*/
                        char last[DB_LAST_NAME_BUF_SIZE];               /*Flawfinder: ignore*/
                        if(info && !info->isOnline()
                           && gCacheName->getName(ids.get(i), first, last))
                        {
                                LLUIString offline = sOfflineMessage;
                                offline.setArg("[FIRST]", first);
                                offline.setArg("[LAST]", last);
                                floater->addHistoryLine(offline, gSavedSettings.getColor4("SystemChatColor"));
                        }
                }
        }
}

void LLIMMgr::processIMTypingStart(const LLIMInfo* im_info)
{
        processIMTypingCore(im_info, TRUE);
}

void LLIMMgr::processIMTypingStop(const LLIMInfo* im_info)
{
        processIMTypingCore(im_info, FALSE);
}

void LLIMMgr::processIMTypingCore(const LLIMInfo* im_info, BOOL typing)
{
        LLUUID session_id = computeSessionID(im_info->mIMType, im_info->mFromID);
        LLFloaterIMPanel* floater = findFloaterBySession(session_id);
        if (floater)
        {
                floater->processIMTyping(im_info, typing);
        }
}

void LLIMMgr::updateFloaterSessionID(
        const LLUUID& old_session_id,
        const LLUUID& new_session_id)
{
        LLFloaterIMPanel* floater = findFloaterBySession(old_session_id);
        if (floater)
        {
                floater->sessionInitReplyReceived(new_session_id);
        }
}

LLFloaterChatterBox* LLIMMgr::getFloater()
{ 
        return LLFloaterChatterBox::getInstance(LLSD()); 
}

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

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

class LLViewerChatterBoxSessionStartReply : public LLHTTPNode
{
public:
        virtual void describe(Description& desc) const
        {
                desc.shortInfo("Used for receiving a reply to a request to initialize an ChatterBox session");
                desc.postAPI();
                desc.input(
                        "{\"client_session_id\": UUID, \"session_id\": UUID, \"success\" boolean, \"reason\": string");
                desc.source(__FILE__, __LINE__);
        }

        virtual void post(ResponsePtr response,
                                          const LLSD& context,
                                          const LLSD& input) const
        {
                LLSD body;
                LLUUID temp_session_id;
                LLUUID session_id;
                bool success;

                body = input["body"];
                success = body["success"].asBoolean();
                temp_session_id = body["temp_session_id"].asUUID();

                if ( success )
                {
                        session_id = body["session_id"].asUUID();
                        gIMMgr->updateFloaterSessionID(
                                temp_session_id,
                                session_id);
                        LLFloaterIMPanel* floaterp = gIMMgr->findFloaterBySession(session_id);
                        if (floaterp)
                        {
                                floaterp->setSpeakersList(body["agents"]);

                                //aply updates we've possibly received previously
                                floaterp->updateSpeakersList(
                                        gIMMgr->getPendingAgentListUpdates(session_id));
                        }
                        gIMMgr->clearPendingAgentListUpdates(session_id);
                }
                else
                {
                        //throw an error dialog and close the temp session's
                        //floater
                        LLFloaterIMPanel* floater = 
                                gIMMgr->findFloaterBySession(temp_session_id);
                        if (floater)
                        {
                                LLString::format_map_t args;
                                args["[REASON]"] =
                                        sErrorStringsMap[body["error"].asString()];
                                args["[RECIPIENT]"] = floater->getTitle();

                                gViewerWindow->alertXml("ChatterBoxSessionStartError",
                                                                                args,
                                                                                onConfirmForceCloseError,
                                                                                floater);

                        }
                }
        }
};

class LLViewerChatterBoxSessionEventReply : public LLHTTPNode
{
public:
        virtual void describe(Description& desc) const
        {
                desc.shortInfo("Used for receiving a reply to a ChatterBox session event");
                desc.postAPI();
                desc.input(
                        "{\"event\": string, \"reason\": string, \"success\": boolean, \"session_id\": UUID");
                desc.source(__FILE__, __LINE__);
        }

        virtual void post(ResponsePtr response,
                                          const LLSD& context,
                                          const LLSD& input) const
        {
                LLUUID session_id;
                bool success;

                LLSD body = input["body"];
                success = body["success"].asBoolean();
                session_id = body["session_id"].asUUID();

                if ( !success )
                {
                        //throw an error dialog
                        LLFloaterIMPanel* floater = 
                                gIMMgr->findFloaterBySession(session_id);
                        if (floater)
                        {
                                LLString::format_map_t args;
                                args["[REASON]"] = 
                                        sErrorStringsMap[body["error"].asString()];
                                args["[EVENT]"] =
                                        sEventStringsMap[body["event"].asString()];
                                args["[RECIPIENT]"] = floater->getTitle();

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

class LLViewerForceCloseChatterBoxSession: public LLHTTPNode
{
public:
        virtual void post(ResponsePtr response,
                                          const LLSD& context,
                                          const LLSD& input) const
        {
                LLUUID session_id;
                LLString reason;

                session_id = input["body"]["session_id"].asUUID();
                reason = input["body"]["reason"].asString();

                LLFloaterIMPanel* floater =
                        gIMMgr ->findFloaterBySession(session_id);

                if ( floater )
                {
                        LLString::format_map_t args;

                        args["[NAME]"] = floater->getTitle();
                        args["[REASON]"] = sForceCloseSessionMap[reason];

                        gViewerWindow->alertXml("ForceCloseChatterBoxSession",
                                                                        args,
                                                                        onConfirmForceCloseError,
                                                                        floater);
                }
        }
};

class LLViewerChatterBoxSessionAgentListUpdates : public LLHTTPNode
{
public:
        virtual void post(
                ResponsePtr responder,
                const LLSD& context,
                const LLSD& input) const
        {
                LLFloaterIMPanel* floaterp = gIMMgr->findFloaterBySession(input["body"]["session_id"].asUUID());
                if (floaterp)
                {
                        floaterp->updateSpeakersList(input["body"]["updates"]);
                }
                else
                {
                        //we don't have a floater yet..something went wrong
                        //we are probably receiving an update here before
                        //a start or an acceptance of an invitation.  Race condition.
                        gIMMgr->addPendingAgentListUpdates(
                                input["body"]["session_id"].asUUID(),
                                input["body"]["updates"]);
                }
        }
};

class LLViewerChatterBoxInvitation : public LLHTTPNode
{
public:

        virtual void post(
                ResponsePtr response,
                const LLSD& context,
                const LLSD& input) const
        {
                if ( input["body"].has("instantmessage") )
                {
                        LLString capability = input["body"]["capabilities"]["call"].asString();

                        LLSD message_params =
                                input["body"]["instantmessage"]["message_params"];

                        //do something here to have the IM invite behave
                        //just like a normal IM
                        //this is just replicated code from process_improved_im
                        //and should really go in it's own function -jwolk
                        if (gNoRender)
                        {
                                return;
                        }
                        char buffer[DB_IM_MSG_BUF_SIZE * 2];  /* Flawfinder: ignore */
                        LLChat chat;

                        std::string message = message_params["message"].asString();
                        std::string name = message_params["from_name"].asString();
                        LLUUID from_id = message_params["from_id"].asUUID();
                        LLUUID session_id = message_params["id"].asUUID();
                        std::vector<U8> bin_bucket = message_params["data"]["binary_bucket"].asBinary();
                        U8 offline = (U8)message_params["offline"].asInteger();
                        
                        time_t timestamp =
                                (time_t) message_params["timestamp"].asInteger();

                        BOOL is_busy = gAgent.getBusy();
                        BOOL is_muted = gMuteListp->isMuted(
                                from_id,
                                name.c_str(),
                                LLMute::flagTextChat);

                        BOOL is_linden = gMuteListp->isLinden(
                                name.c_str());
                        char separator_string[3]=": ";          /* Flawfinder: ignore */
                        int message_offset=0;

                        //Handle IRC styled /me messages.
                        if (!strncmp(message.c_str(), "/me ", 4) ||
                                !strncmp(message.c_str(), "/me'", 4))
                        {
                                strcpy(separator_string,"");       /* Flawfinder: ignore */
                                message_offset = 3;
                        }
                        
                        chat.mMuted = is_muted && !is_linden;
                        chat.mFromID = from_id;
                        chat.mFromName = name;

                        if (!is_linden && (is_busy || is_muted))
                        {
                                return;
                        }

                        // standard message, not from system
                        char saved[MAX_STRING];         /* Flawfinder: ignore */
                        saved[0] = '\0';
                        if(offline == IM_OFFLINE)
                        {
                                char time_buf[TIME_STR_LENGTH]; /* Flawfinder: ignore */
                                snprintf(saved,         /* Flawfinder: ignore */
                                                 MAX_STRING, 
                                                 "(Saved %s) ", 
                                                 formatted_time(timestamp, time_buf));
                        }
                        snprintf(
                                buffer,
                                sizeof(buffer),
                                "%s%s%s%s",
                                name.c_str(),
                                separator_string,
                                saved,
                                (message.c_str() + message_offset)); /*Flawfinder: ignore*/

                        BOOL is_this_agent = FALSE;
                        if(from_id == gAgentID)
                        {
                                is_this_agent = TRUE;
                        }
                        gIMMgr->addMessage(
                                session_id,
                                from_id,
                                name.c_str(),
                                buffer,
                                (char*)&bin_bucket[0],
                                IM_SESSION_INVITE,
                                message_params["parent_estate_id"].asInteger(),
                                message_params["region_id"].asUUID(),
                                ll_vector3_from_sd(message_params["position"]));

                        snprintf(
                                buffer,
                                sizeof(buffer),
                                "%s%s%s%s",
                                name.c_str(),
                                separator_string,
                                saved,
                                (message.c_str()+message_offset)); /* Flawfinder: ignore */
                        chat.mText = buffer;
                        chat.mFromIM = true;
                        LLFloaterChat::addChat(chat, is_this_agent);

                        //K now we want to accept the invitation
                        std::string url = gAgent.getRegion()->getCapability(
                                "ChatSessionRequest");

                        if ( url != "" )
                        {
                                LLSD data;
                                data["method"] = "accept invitation";
                                data["session-id"] = input["body"]["session_id"];
                                LLHTTPClient::post(
                                        url,
                                        data,
                                        new LLViewerChatterBoxInvitationAcceptResponder(
                                                input["body"]["session_id"],
                                                false));
                        }
                } //end if invitation has instant message
                else if ( input["body"].has("voice") )
                {
                        if (gNoRender)
                        {
                                return;
                        }
                        
                        if(!LLVoiceClient::voiceEnabled())
                        {
                                // Don't display voice invites unless the user has voice enabled.
                                return;
                        }

                        gIMMgr->inviteToSession(
                                input["body"]["session_id"].asUUID(), 
                                input["body"]["session_name"].asString(), 
                                input["body"]["from_id"].asUUID(),
                                input["body"]["from_name"].asString(),
                                IM_SESSION_INVITE);
                }
        }
};

LLHTTPRegistration<LLViewerChatterBoxSessionStartReply>
   gHTTPRegistrationMessageChatterboxsessionstartreply(
           "/message/ChatterBoxSessionStartReply");

LLHTTPRegistration<LLViewerChatterBoxSessionEventReply>
   gHTTPRegistrationMessageChatterboxsessioneventreply(
           "/message/ChatterBoxSessionEventReply");

LLHTTPRegistration<LLViewerForceCloseChatterBoxSession>
    gHTTPRegistrationMessageForceclosechatterboxsession(
                "/message/ForceCloseChatterBoxSession");

LLHTTPRegistration<LLViewerChatterBoxSessionAgentListUpdates>
    gHTTPRegistrationMessageChatterboxsessionagentlistupdates(
            "/message/ChatterBoxSessionAgentListUpdates");

LLHTTPRegistration<LLViewerChatterBoxInvitation>
    gHTTPRegistrationMessageChatterBoxInvitation(
                "/message/ChatterBoxInvitation");

---