/**
 * @file llfloaterworldmap.cpp
 * @author James Cook, Tom Yedwab
 * @brief LLFloaterWorldMap class implementation
 *
 * $LicenseInfo:firstyear=2003&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

/*
 * Map of the entire world, with multiple background images,
 * avatar tracking, teleportation by double-click, etc.
 */

#include "llviewerprecompiledheaders.h"

#include "llfloaterworldmap.h"

#include "llagent.h"
#include "llagentcamera.h"
#include "llbutton.h"
#include "llcallingcard.h"
#include "llcombobox.h"
#include "llcheckboxctrl.h"
#include "llsliderctrl.h"
#include "llviewercontrol.h"
#include "llcommandhandler.h"
#include "lldraghandle.h"
//#include "llfirstuse.h"
#include "llfloaterreg.h"       // getTypedInstance()
#include "llfocusmgr.h"
#include "lliconctrl.h"
#include "llinventoryfunctions.h"
#include "llinventorymodel.h"
#include "llinventorymodelbackgroundfetch.h"
#include "llinventoryobserver.h"
#include "lllandmarklist.h"
#include "llsearcheditor.h"
#include "llnotificationsutil.h"
#include "llregionhandle.h"
#include "llscrolllistctrl.h"
#include "llslurl.h"
#include "lltextbox.h"
#include "lltoolbarview.h"
#include "lltracker.h"
#include "lltrans.h"
#include "llviewerinventory.h"  // LLViewerInventoryItem
#include "llviewermenu.h"
#include "llviewerparcelmgr.h"
#include "llviewerregion.h"
#include "llviewerstats.h"
#include "llviewertexture.h"
#include "llviewerwindow.h"
#include "llworldmap.h"
#include "llworldmapmessage.h"
#include "llworldmapview.h"
#include "lluictrlfactory.h"
#include "llappviewer.h"
#include "llmapimagetype.h"
#include "llweb.h"
#include "llsliderctrl.h"
#include "message.h"
#include "llwindow.h"           // copyTextToClipboard()
#include <algorithm>

//---------------------------------------------------------------------------
// Constants
//---------------------------------------------------------------------------

// Merov: we switched from using the "world size" (which varies depending where the user went) to a fixed
// width of 512 regions max visible at a time. This makes the zoom slider works in a consistent way across
// sessions and doesn't prevent the user to pan the world if it was to grow a lot beyond that limit.
// Currently (01/26/09), this value allows the whole grid to be visible in a 1024x1024 window.
static const S32 MAX_VISIBLE_REGIONS = 512;


const S32 HIDE_BEACON_PAD = 133;

// It would be more logical to have this inside the method where it is used but to compile under gcc this
// struct has to be here.
struct SortRegionNames
{
    inline bool operator ()(std::pair <U64, LLSimInfo*> const& _left, std::pair <U64, LLSimInfo*> const& _right)
    {
        return(LLStringUtil::compareInsensitive(_left.second->getName(), _right.second->getName()) < 0);
    }
};

enum EPanDirection
{
    PAN_UP,
    PAN_DOWN,
    PAN_LEFT,
    PAN_RIGHT
};

// Values in pixels per region
static const F32 ZOOM_MAX = 128.f;

//---------------------------------------------------------------------------
// Globals
//---------------------------------------------------------------------------

// handle secondlife:///app/worldmap/{NAME}/{COORDS} URLs
class LLWorldMapHandler : public LLCommandHandler
{
public:
    LLWorldMapHandler() : LLCommandHandler("worldmap", UNTRUSTED_THROTTLE)
    {
    }

    virtual bool canHandleUntrusted(
        const LLSD& params,
        const LLSD& query_map,
        LLMediaCtrl* web,
        const std::string& nav_type)
    {
        if (nav_type == NAV_TYPE_CLICKED
            || nav_type == NAV_TYPE_EXTERNAL)
        {
            // NAV_TYPE_EXTERNAL will be throttled
            return true;
        }

        return false;
    }

    bool handle(const LLSD& params,
                const LLSD& query_map,
                const std::string& grid,
                LLMediaCtrl* web)
    {
        if (params.size() == 0)
        {
            // support the secondlife:///app/worldmap SLapp
            LLFloaterReg::showInstance("world_map", "center");
            return true;
        }

        // support the secondlife:///app/worldmap/{LOCATION}/{COORDS} SLapp
        const std::string region_name = LLURI::unescape(params[0].asString());
        S32 x = (params.size() > 1) ? params[1].asInteger() : 128;
        S32 y = (params.size() > 2) ? params[2].asInteger() : 128;
        S32 z = (params.size() > 3) ? params[3].asInteger() : 0;

        LLFloaterWorldMap::getInstance()->trackURL(region_name, x, y, z);
        LLFloaterReg::showInstance("world_map", "center");

        return true;
    }
};
LLWorldMapHandler gWorldMapHandler;

// SocialMap handler secondlife:///app/maptrackavatar/id
class LLMapTrackAvatarHandler : public LLCommandHandler
{
public:
    LLMapTrackAvatarHandler() : LLCommandHandler("maptrackavatar", UNTRUSTED_THROTTLE)
    {
    }

    virtual bool canHandleUntrusted(
        const LLSD& params,
        const LLSD& query_map,
        LLMediaCtrl* web,
        const std::string& nav_type)
    {
        if (params.size() < 1)
        {
            return true; // don't block, will fail later
        }

        if (nav_type == NAV_TYPE_CLICKED
            || nav_type == NAV_TYPE_EXTERNAL)
        {
            // NAV_TYPE_EXTERNAL will be throttled
            return true;
        }

        return false;
    }

    bool handle(const LLSD& params,
                const LLSD& query_map,
                const std::string& grid,
                LLMediaCtrl* web)
    {
        //Make sure we have some parameters
        if (params.size() == 0)
        {
            return false;
        }

        //Get the ID
        LLUUID id;
        if (!id.set( params[0], false ))
        {
            return false;
        }

        LLFloaterWorldMap::getInstance()->avatarTrackFromSlapp( id  );
        LLFloaterReg::showInstance( "world_map", "center" );

        return true;
    }
};
LLMapTrackAvatarHandler gMapTrackAvatar;

LLFloaterWorldMap* gFloaterWorldMap = NULL;

class LLMapInventoryObserver : public LLInventoryObserver
{
public:
    LLMapInventoryObserver() {}
    virtual ~LLMapInventoryObserver() {}
    virtual void changed(U32 mask);
};

void LLMapInventoryObserver::changed(U32 mask)
{
    // if there's a change we're interested in.
    if((mask & (LLInventoryObserver::CALLING_CARD | LLInventoryObserver::ADD |
                LLInventoryObserver::REMOVE)) != 0)
    {
        gFloaterWorldMap->inventoryChanged();
    }
}

class LLMapFriendObserver : public LLFriendObserver
{
public:
    LLMapFriendObserver() {}
    virtual ~LLMapFriendObserver() {}
    virtual void changed(U32 mask);
};

void LLMapFriendObserver::changed(U32 mask)
{
    // if there's a change we're interested in.
    if((mask & (LLFriendObserver::ADD | LLFriendObserver::REMOVE | LLFriendObserver::ONLINE | LLFriendObserver::POWERS)) != 0)
    {
        gFloaterWorldMap->friendsChanged();
    }
}

LLWorldMapParcelInfoObserver::LLWorldMapParcelInfoObserver(const LLVector3d& pos_global)
    : LLRemoteParcelInfoObserver(),
    mPosGlobal(pos_global),
    mParcelID(LLUUID::null)
{ }

LLWorldMapParcelInfoObserver::~LLWorldMapParcelInfoObserver()
{
    if (mParcelID.notNull())
    {
        LLRemoteParcelInfoProcessor::getInstance()->removeObserver(mParcelID, this);
    }
}

void LLWorldMapParcelInfoObserver::processParcelInfo(const LLParcelData& parcel_data)
{
    if (parcel_data.parcel_id == mParcelID)
    {
        LLRemoteParcelInfoProcessor::getInstance()->removeObserver(mParcelID, this);

        if (gFloaterWorldMap)
        {
            gFloaterWorldMap->processParcelInfo(parcel_data, mPosGlobal);
        }
    }
}

// virtual
void LLWorldMapParcelInfoObserver::setParcelID(const LLUUID& parcel_id)
{
    mParcelID = parcel_id;
    auto instance = LLRemoteParcelInfoProcessor::getInstance();
    instance->addObserver(mParcelID, this);
    instance->sendParcelInfoRequest(mParcelID);
}

// virtual
void LLWorldMapParcelInfoObserver::setErrorStatus(S32 status, const std::string& reason)
{
    LL_WARNS("LLWorldMapParcelInfoObserver") << "Can't handle remote parcel request." << " Http Status: " << status << ". Reason : " << reason << LL_ENDL;
}

//---------------------------------------------------------------------------
// Statics
//---------------------------------------------------------------------------

// Used as a pretend asset and inventory id to mean "landmark at my home location."
const LLUUID LLFloaterWorldMap::sHomeID( "10000000-0000-0000-0000-000000000001" );

//---------------------------------------------------------------------------
// Construction and destruction
//---------------------------------------------------------------------------


LLFloaterWorldMap::LLFloaterWorldMap(const LLSD& key)
:   LLFloater(key),
    mInventory(nullptr),
    mInventoryObserver(nullptr),
    mFriendObserver(nullptr),
    mCompletingRegionName(),
    mCompletingRegionPos(),
    mWaitingForTracker(false),
    mIsClosing(false),
    mSetToUserPosition(true),
    mTrackedLocation(0.0,0.0,0.0),
    mTrackedStatus(LLTracker::TRACKING_NOTHING),
    mListFriendCombo(nullptr),
    mListLandmarkCombo(nullptr),
    mListSearchResults(nullptr),
    mParcelInfoObserver(nullptr),
    mShowParcelInfo(false)
{
    gFloaterWorldMap = this;

    mFactoryMap["objects_mapview"] = LLCallbackMap(createWorldMapView, nullptr);

    mCommitCallbackRegistrar.add("WMap.Coordinates",    boost::bind(&LLFloaterWorldMap::onCoordinatesCommit, this));
    mCommitCallbackRegistrar.add("WMap.Location",       boost::bind(&LLFloaterWorldMap::onLocationCommit, this));
    mCommitCallbackRegistrar.add("WMap.AvatarCombo",    boost::bind(&LLFloaterWorldMap::onAvatarComboCommit, this));
    mCommitCallbackRegistrar.add("WMap.Landmark",       boost::bind(&LLFloaterWorldMap::onLandmarkComboCommit, this));
    mCommitCallbackRegistrar.add("WMap.SearchResult",   boost::bind(&LLFloaterWorldMap::onCommitSearchResult, this));
    mCommitCallbackRegistrar.add("WMap.GoHome",         boost::bind(&LLFloaterWorldMap::onGoHome, this));
    mCommitCallbackRegistrar.add("WMap.Teleport",       boost::bind(&LLFloaterWorldMap::onClickTeleportBtn, this));
    mCommitCallbackRegistrar.add("WMap.ShowTarget",     boost::bind(&LLFloaterWorldMap::onShowTargetBtn, this));
    mCommitCallbackRegistrar.add("WMap.ShowAgent",      boost::bind(&LLFloaterWorldMap::onShowAgentBtn, this));
    mCommitCallbackRegistrar.add("WMap.Clear",          boost::bind(&LLFloaterWorldMap::onClearBtn, this));
    mCommitCallbackRegistrar.add("WMap.CopySLURL",      boost::bind(&LLFloaterWorldMap::onCopySLURL, this));

    gSavedSettings.getControl("PreferredMaturity")->getSignal()->connect(boost::bind(&LLFloaterWorldMap::onChangeMaturity, this));
}

// static
void* LLFloaterWorldMap::createWorldMapView(void* data)
{
    return new LLWorldMapView();
}

bool LLFloaterWorldMap::postBuild()
{
    mMapView = dynamic_cast<LLWorldMapView*>(getChild<LLPanel>("objects_mapview"));
    mMapView->setPan(0, 0, true);

    mTeleportButton = getChild<LLButton>("Teleport");
    mShowDestinationButton = getChild<LLButton>("Show Destination");
    mCopySlurlButton = getChild<LLButton>("copy_slurl");
    mGoHomeButton = getChild<LLButton>("Go Home");

    mPeopleCheck = getChild<LLCheckBoxCtrl>("people_chk");
    mInfohubCheck = getChild<LLCheckBoxCtrl>("infohub_chk");
    mLandSaleCheck = getChild<LLCheckBoxCtrl>("land_for_sale_chk");
    mEventsCheck = getChild<LLCheckBoxCtrl>("event_chk");
    mEventsMatureCheck = getChild<LLCheckBoxCtrl>("events_mature_chk");
    mEventsAdultCheck = getChild<LLCheckBoxCtrl>("events_adult_chk");

    mAvatarIcon = getChild<LLUICtrl>("avatar_icon");
    mLandmarkIcon = getChild<LLUICtrl>("landmark_icon");
    mLocationIcon = getChild<LLUICtrl>("location_icon");

    mTeleportCoordSpinX = getChild<LLUICtrl>("teleport_coordinate_x");
    mTeleportCoordSpinY = getChild<LLUICtrl>("teleport_coordinate_y");
    mTeleportCoordSpinZ = getChild<LLUICtrl>("teleport_coordinate_z");

    LLComboBox *avatar_combo = getChild<LLComboBox>("friend combo");
    avatar_combo->selectFirstItem();
    avatar_combo->setPrearrangeCallback( boost::bind(&LLFloaterWorldMap::onAvatarComboPrearrange, this) );
    avatar_combo->setTextChangedCallback( boost::bind(&LLFloaterWorldMap::onComboTextEntry, this) );
    mListFriendCombo = dynamic_cast<LLCtrlListInterface *>(avatar_combo);

    mLocationEditor = getChild<LLSearchEditor>("location");
    mLocationEditor->setFocusChangedCallback(boost::bind(&LLFloaterWorldMap::onLocationFocusChanged, this, _1));
    mLocationEditor->setTextChangedCallback( boost::bind(&LLFloaterWorldMap::onSearchTextEntry, this));

    getChild<LLScrollListCtrl>("search_results")->setDoubleClickCallback( boost::bind(&LLFloaterWorldMap::onClickTeleportBtn, this));
    mListSearchResults = childGetListInterface("search_results");

    LLComboBox *landmark_combo = getChild<LLComboBox>( "landmark combo");
    landmark_combo->selectFirstItem();
    landmark_combo->setPrearrangeCallback( boost::bind(&LLFloaterWorldMap::onLandmarkComboPrearrange, this) );
    landmark_combo->setTextChangedCallback( boost::bind(&LLFloaterWorldMap::onComboTextEntry, this) );
    mListLandmarkCombo = dynamic_cast<LLCtrlListInterface *>(landmark_combo);

    mZoomSlider = getChild<LLSliderCtrl>("zoom slider");
    F32 slider_zoom = mMapView->getZoom();
    mZoomSlider->setValue(slider_zoom);

    getChild<LLPanel>("expand_btn_panel")->setMouseDownCallback(boost::bind(&LLFloaterWorldMap::onExpandCollapseBtn, this));

    setDefaultBtn(NULL);

    onChangeMaturity();

    return true;
}

// virtual
LLFloaterWorldMap::~LLFloaterWorldMap()
{
    if (mParcelInfoObserver)
    {
        delete mParcelInfoObserver;
    }

    // All cleaned up by LLView destructor
    mMapView = NULL;

    // Inventory deletes all observers on shutdown
    mInventory = NULL;
    mInventoryObserver = NULL;

    // avatar tracker will delete this for us.
    mFriendObserver = NULL;

    gFloaterWorldMap = NULL;

    mTeleportFinishConnection.disconnect();
}

//static
LLFloaterWorldMap* LLFloaterWorldMap::getInstance()
{
    return LLFloaterReg::getTypedInstance<LLFloaterWorldMap>("world_map");
}

// virtual
void LLFloaterWorldMap::onClose(bool app_quitting)
{
    // While we're not visible, discard the overlay images we're using
    LLWorldMap::getInstance()->clearImageRefs();
    mTeleportFinishConnection.disconnect();
}

// virtual
void LLFloaterWorldMap::onOpen(const LLSD& key)
{
    mTeleportFinishConnection = LLViewerParcelMgr::getInstance()->
        setTeleportFinishedCallback(boost::bind(&LLFloaterWorldMap::onTeleportFinished, this));

    bool center_on_target = (key.asString() == "center");

    mIsClosing = false;

    mMapView->clearLastClick();

    {
        // reset pan on show, so it centers on you again
        if (!center_on_target)
        {
            mMapView->setPan(0, 0, true);
        }
        mMapView->updateVisibleBlocks();

        // Reload items as they may have changed
        LLWorldMap::getInstance()->reloadItems();

        // We may already have a bounding box for the regions of the world,
        // so use that to adjust the view.
        adjustZoomSliderBounds();

        // Could be first show
        //LLFirstUse::useMap();

        // Start speculative download of landmarks
        const LLUUID landmark_folder_id = gInventory.findCategoryUUIDForType(LLFolderType::FT_LANDMARK);
        LLInventoryModelBackgroundFetch::instance().start(landmark_folder_id);

        mLocationEditor->setFocus( true);
        gFocusMgr.triggerFocusFlash();

        buildAvatarIDList();
        buildLandmarkIDLists();

        // If nothing is being tracked, set flag so the user position will be found
        mSetToUserPosition = ( LLTracker::getTrackingStatus() == LLTracker::TRACKING_NOTHING );
    }

    if (center_on_target)
    {
        centerOnTarget(false);
    }
}

// static
void LLFloaterWorldMap::reloadIcons(void*)
{
    LLWorldMap::getInstance()->reloadItems();
}

// virtual
bool LLFloaterWorldMap::handleHover(S32 x, S32 y, MASK mask)
{
    bool handled;
    handled = LLFloater::handleHover(x, y, mask);
    return handled;
}

bool LLFloaterWorldMap::handleScrollWheel(S32 x, S32 y, S32 clicks)
{
    if (!isMinimized() && isFrontmost())
    {
        S32 map_x = x - mMapView->getRect().mLeft;
        S32 map_y = y - mMapView->getRect().mBottom;
        if (mMapView->pointInView(map_x, map_y))
        {
            F32 old_slider_zoom = (F32) mZoomSlider->getValue().asReal();
            F32 slider_zoom     = old_slider_zoom + ((F32) clicks * -0.3333f);
            mZoomSlider->setValue(LLSD(slider_zoom));
            mMapView->zoomWithPivot(slider_zoom, map_x, map_y);
            return true;
        }
    }

    return LLFloater::handleScrollWheel(x, y, clicks);
}


// virtual
void LLFloaterWorldMap::reshape( S32 width, S32 height, bool called_from_parent )
{
    LLFloater::reshape( width, height, called_from_parent );
}


// virtual
void LLFloaterWorldMap::draw()
{
    static LLUIColor map_track_color = LLUIColorTable::instance().getColor("MapTrackColor", LLColor4::white);
    static LLUIColor map_track_disabled_color = LLUIColorTable::instance().getColor("MapTrackDisabledColor", LLColor4::white);

    // On orientation island, users don't have a home location yet, so don't
    // let them teleport "home".  It dumps them in an often-crowed welcome
    // area (infohub) and they get confused. JC
    LLViewerRegion* regionp = gAgent.getRegion();
    bool agent_on_prelude = (regionp && regionp->isPrelude());
    bool enable_go_home = gAgent.isGodlike() || !agent_on_prelude;
    mGoHomeButton->setEnabled(enable_go_home);

    updateLocation();

    LLTracker::ETrackingStatus tracking_status = LLTracker::getTrackingStatus();
    if (LLTracker::TRACKING_AVATAR == tracking_status)
    {
        mAvatarIcon->setColor( map_track_color);
    }
    else
    {
        mAvatarIcon->setColor( map_track_disabled_color);
    }

    if (LLTracker::TRACKING_LANDMARK == tracking_status)
    {
        mLandmarkIcon->setColor( map_track_color);
    }
    else
    {
        mLandmarkIcon->setColor( map_track_disabled_color);
    }

    if (LLTracker::TRACKING_LOCATION == tracking_status)
    {
        mLocationIcon->setColor( map_track_color);
    }
    else
    {
        if (mCompletingRegionName != "")
        {
            F64 seconds = LLTimer::getElapsedSeconds();
            double value = fmod(seconds, 2);
            value = 0.5 + 0.5*cos(value * F_PI);
            LLColor4 loading_color(0.0, F32(value/2), F32(value), 1.0);
            mLocationIcon->setColor( loading_color);
        }
        else
        {
            mLocationIcon->setColor( map_track_disabled_color);
        }
    }

    // check for completion of tracking data
    if (mWaitingForTracker)
    {
        centerOnTarget(true);
    }

    mTeleportButton->setEnabled((bool)tracking_status);
    //  getChildView("Clear")->setEnabled((bool)tracking_status);
    mShowDestinationButton->setEnabled((bool)tracking_status || LLWorldMap::getInstance()->isTracking());
    mCopySlurlButton->setEnabled((mSLURL.isValid()) );

    setMouseOpaque(true);
    getDragHandle()->setMouseOpaque(true);

    mMapView->zoom((F32)mZoomSlider->getValue().asReal());

    // Enable/disable checkboxes depending on the zoom level
    // If above threshold level (i.e. low res) -> Disable all checkboxes
    // If under threshold level (i.e. high res) -> Enable all checkboxes
    bool enable = mMapView->showRegionInfo();
    mPeopleCheck->setEnabled(enable);
    mInfohubCheck->setEnabled(enable);
    mLandSaleCheck->setEnabled(enable);
    mEventsCheck->setEnabled(enable);
    mEventsMatureCheck->setEnabled(enable);
    mEventsAdultCheck->setEnabled(enable);

    LLFloater::draw();
}


//-------------------------------------------------------------------------
// Internal utility functions
//-------------------------------------------------------------------------

void LLFloaterWorldMap::processParcelInfo(const LLParcelData& parcel_data, const LLVector3d& pos_global) const
{
    LLVector3d tracker_pos = LLTracker::getTrackedPositionGlobal();
    if (!mShowParcelInfo ||
        (tracker_pos.mdV[VX] != pos_global.mdV[VX] && tracker_pos.mdV[VY] != pos_global.mdV[VY]) ||
        LLTracker::getTrackedLocationType() != LLTracker::LOCATION_NOTHING ||
        LLTracker::getTrackingStatus() != LLTracker::TRACKING_LOCATION)
    {
        return;
    }

    LLSimInfo* sim_info = LLWorldMap::getInstance()->simInfoFromPosGlobal(pos_global);
    if (!sim_info)
    {
        return;
    }

    std::string sim_name = sim_info->getName();
    U32 locX, locY;
    from_region_handle(sim_info->getHandle(), &locX, &locY);
    F32 region_x = (F32)(pos_global.mdV[VX] - locX);
    F32 region_y = (F32)(pos_global.mdV[VY] - locY);
    std::string full_name = llformat("%s (%d, %d, %d)",
        sim_name.c_str(),
        ll_round(region_x),
        ll_round(region_y),
        ll_round((F32)pos_global.mdV[VZ]));

    LLTracker::trackLocation(pos_global, parcel_data.name.empty() ? getString("UnnamedParcel") : parcel_data.name, full_name);
}

void LLFloaterWorldMap::requestParcelInfo(const LLVector3d& pos_global, const LLVector3d& region_origin)
{
    if (pos_global == mRequestedGlobalPos)
    {
        return;
    }

    LLViewerRegion* region = gAgent.getRegion();
    if (!region)
    {
        return;
    }

    if (std::string url = region->getCapability("RemoteParcelRequest"); !url.empty())
    {
        mRequestedGlobalPos = pos_global;
        if (mParcelInfoObserver)
        {
            delete mParcelInfoObserver;
        }
        mParcelInfoObserver = new LLWorldMapParcelInfoObserver(pos_global);

        auto pos_region = LLVector3(pos_global - region_origin);
        LLRemoteParcelInfoProcessor::instance().requestRegionParcelInfo(url,
            region->getRegionID(), pos_region, pos_global,
            mParcelInfoObserver->getObserverHandle());
    }
    else
    {
        LL_WARNS() << "Cannot request parcel details: Cap not found" << LL_ENDL;
    }
}

void LLFloaterWorldMap::trackAvatar( const LLUUID& avatar_id, const std::string& name )
{
    mShowParcelInfo = false;
    LLCtrlSelectionInterface *iface = childGetSelectionInterface("friend combo");
    if (!iface) return;

    buildAvatarIDList();
    if(iface->setCurrentByID(avatar_id) || gAgent.isGodlike())
    {
        // *HACK: Adjust Z values automatically for liaisons & gods so
        // they swoop down when they click on the map. Requested
        // convenience.
        if(gAgent.isGodlike())
        {
            mTeleportCoordSpinZ->setValue(LLSD(200.f));
        }
        // Don't re-request info if we already have it or we won't have it in time to teleport
        if (mTrackedStatus != LLTracker::TRACKING_AVATAR || avatar_id != mTrackedAvatarID)
        {
            mTrackedStatus = LLTracker::TRACKING_AVATAR;
            mTrackedAvatarID = avatar_id;
            LLTracker::trackAvatar(avatar_id, name);
        }
    }
    else
    {
        LLTracker::stopTracking(false);
    }
    setDefaultBtn("Teleport");
}

void LLFloaterWorldMap::trackLandmark( const LLUUID& landmark_item_id )
{
    mShowParcelInfo = false;
    LLCtrlSelectionInterface *iface = childGetSelectionInterface("landmark combo");
    if (!iface) return;

    buildLandmarkIDLists();
    bool found = false;
    S32 idx;
    for (idx = 0; idx < mLandmarkItemIDList.size(); idx++)
    {
        if ( mLandmarkItemIDList.at(idx) == landmark_item_id)
        {
            found = true;
            break;
        }
    }

    if (found && iface->setCurrentByID( landmark_item_id ) )
    {
        LLUUID asset_id = mLandmarkAssetIDList.at( idx );
        std::string name;
        LLComboBox* combo = getChild<LLComboBox>( "landmark combo");
        if (combo) name = combo->getSimple();
        mTrackedStatus = LLTracker::TRACKING_LANDMARK;
        LLTracker::trackLandmark(mLandmarkAssetIDList.at( idx ),    // assetID
                                 mLandmarkItemIDList.at( idx ), // itemID
                                 name);         // name

        if( asset_id != sHomeID )
        {
            // start the download process
            gLandmarkList.getAsset( asset_id);
        }

        // We have to download both region info and landmark data, so set busy. JC
        //      getWindow()->incBusyCount();
    }
    else
    {
        LLTracker::stopTracking(false);
    }
    setDefaultBtn("Teleport");
}


void LLFloaterWorldMap::trackEvent(const LLItemInfo &event_info)
{
    mShowParcelInfo = false;
    mTrackedStatus = LLTracker::TRACKING_LOCATION;
    LLTracker::trackLocation(event_info.getGlobalPosition(), event_info.getName(), event_info.getToolTip(), LLTracker::LOCATION_EVENT);
    setDefaultBtn("Teleport");
}

void LLFloaterWorldMap::trackGenericItem(const LLItemInfo &item)
{
    mShowParcelInfo = false;
    mTrackedStatus = LLTracker::TRACKING_LOCATION;
    LLTracker::trackLocation(item.getGlobalPosition(), item.getName(), item.getToolTip(), LLTracker::LOCATION_ITEM);
    setDefaultBtn("Teleport");
}

void LLFloaterWorldMap::trackLocation(const LLVector3d& pos_global)
{
    LLSimInfo* sim_info = LLWorldMap::getInstance()->simInfoFromPosGlobal(pos_global);
    if (!sim_info)
    {
        // We haven't found a region for that point yet, leave the tracking to the world map
        LLTracker::stopTracking(false);
        LLWorldMap::getInstance()->setTracking(pos_global);
        S32 world_x = S32(pos_global.mdV[0] / 256);
        S32 world_y = S32(pos_global.mdV[1] / 256);
        LLWorldMapMessage::getInstance()->sendMapBlockRequest(world_x, world_y, world_x, world_y, true);
        setDefaultBtn("");

        // clicked on a non-region - turn off coord display
        enableTeleportCoordsDisplay( false );

        return;
    }
    if (sim_info->isDown())
    {
        // Down region. Show the blue circle of death!
        // i.e. let the world map that this and tell it it's invalid
        LLTracker::stopTracking(false);
        LLWorldMap::getInstance()->setTracking(pos_global);
        LLWorldMap::getInstance()->setTrackingInvalid();
        setDefaultBtn("");

        // clicked on a down region - turn off coord display
        enableTeleportCoordsDisplay( false );

        return;
    }

    std::string sim_name = sim_info->getName();
    F32 region_x = (F32)fmod( pos_global.mdV[VX], (F64)REGION_WIDTH_METERS );
    F32 region_y = (F32)fmod( pos_global.mdV[VY], (F64)REGION_WIDTH_METERS );
    std::string full_name = llformat("%s (%d, %d, %d)",
                                     sim_name.c_str(),
                                     ll_round(region_x),
                                     ll_round(region_y),
                                     ll_round((F32)pos_global.mdV[VZ]));

    std::string tooltip("");
    mTrackedStatus = LLTracker::TRACKING_LOCATION;
    LLWorldMap::getInstance()->cancelTracking();        // The floater is taking over the tracking
    LLTracker::trackLocation(pos_global, full_name, tooltip);

    mShowParcelInfo = true;
    requestParcelInfo(pos_global, sim_info->getGlobalOrigin());

    LLVector3d coord_pos = LLTracker::getTrackedPositionGlobal();
    updateTeleportCoordsDisplay( coord_pos );

    // we have a valid region - turn on coord display
    enableTeleportCoordsDisplay( true );

    setDefaultBtn("Teleport");
}

// enable/disable teleport destination coordinates
void LLFloaterWorldMap::enableTeleportCoordsDisplay( bool enabled )
{
    mTeleportCoordSpinX->setEnabled(enabled);
    mTeleportCoordSpinY->setEnabled(enabled);
    mTeleportCoordSpinZ->setEnabled(enabled);
}

// update display of teleport destination coordinates - pos is in global coordinates
void LLFloaterWorldMap::updateTeleportCoordsDisplay( const LLVector3d& pos )
{
    // if we're going to update their value, we should also enable them
    enableTeleportCoordsDisplay( true );

    // convert global specified position to a local one
    F32 region_local_x = (F32)fmod( pos.mdV[VX], (F64)REGION_WIDTH_METERS );
    F32 region_local_y = (F32)fmod( pos.mdV[VY], (F64)REGION_WIDTH_METERS );
    F32 region_local_z = (F32)llclamp( pos.mdV[VZ], 0.0, (F64)REGION_HEIGHT_METERS );

    // write in the values
    mTeleportCoordSpinX->setValue(region_local_x);
    mTeleportCoordSpinY->setValue(region_local_y);
    mTeleportCoordSpinZ->setValue(region_local_z);
}

void LLFloaterWorldMap::updateLocation()
{
    bool gotSimName;

    LLTracker::ETrackingStatus status = LLTracker::getTrackingStatus();

    // These values may get updated by a message, so need to check them every frame
    // The fields may be changed by the user, so only update them if the data changes
    LLVector3d pos_global = LLTracker::getTrackedPositionGlobal();
    if (pos_global.isExactlyZero())
    {
        LLVector3d agentPos = gAgent.getPositionGlobal();

        // Set to avatar's current postion if nothing is selected
        if ( status == LLTracker::TRACKING_NOTHING && mSetToUserPosition )
        {
            // Make sure we know where we are before setting the current user position
            std::string agent_sim_name;
            gotSimName = LLWorldMap::getInstance()->simNameFromPosGlobal( agentPos, agent_sim_name );
            if ( gotSimName )
            {
                mSetToUserPosition = false;

                // Fill out the location field
                mLocationEditor->setValue(agent_sim_name);

                // update the coordinate display with location of avatar in region
                updateTeleportCoordsDisplay( agentPos );

                // Figure out where user is
                // Set the current SLURL
                mSLURL = LLSLURL(agent_sim_name, gAgent.getPositionGlobal());
            }
        }

        return; // invalid location
    }
    std::string sim_name;
    gotSimName = LLWorldMap::getInstance()->simNameFromPosGlobal( pos_global, sim_name );
    if ((status != LLTracker::TRACKING_NOTHING) &&
        (status != mTrackedStatus || pos_global != mTrackedLocation || sim_name != mTrackedSimName))
    {
        mTrackedStatus = status;
        mTrackedLocation = pos_global;
        mTrackedSimName = sim_name;

        if (status == LLTracker::TRACKING_AVATAR)
        {
            // *HACK: Adjust Z values automatically for liaisons &
            // gods so they swoop down when they click on the
            // map. Requested convenience.
            if(gAgent.isGodlike())
            {
                pos_global[2] = 200;
            }
        }

        mLocationEditor->setValue(sim_name);

        // refresh coordinate display to reflect where user clicked.
        LLVector3d coord_pos = LLTracker::getTrackedPositionGlobal();
        updateTeleportCoordsDisplay( coord_pos );

        // simNameFromPosGlobal can fail, so don't give the user an invalid SLURL
        if ( gotSimName )
        {
            mSLURL = LLSLURL(sim_name, pos_global);
        }
        else
        {   // Empty SLURL will disable the "Copy SLURL to clipboard" button
            mSLURL = LLSLURL();
        }
    }
}

void LLFloaterWorldMap::trackURL(const std::string& region_name, S32 x_coord, S32 y_coord, S32 z_coord)
{
    LLSimInfo* sim_info = LLWorldMap::getInstance()->simInfoFromName(region_name);
    z_coord = llclamp(z_coord, 0, 4096);
    if (sim_info)
    {
        LLVector3 local_pos;
        local_pos.mV[VX] = (F32)x_coord;
        local_pos.mV[VY] = (F32)y_coord;
        local_pos.mV[VZ] = (F32)z_coord;
        LLVector3d global_pos = sim_info->getGlobalPos(local_pos);
        trackLocation(global_pos);
        setDefaultBtn("Teleport");
    }
    else
    {
        // fill in UI based on URL
        mLocationEditor->setValue(region_name);

        // Save local coords to highlight position after region global
        // position is returned.
        mCompletingRegionPos.set(
                                                   (F32)x_coord, (F32)y_coord, (F32)z_coord);

        // pass sim name to combo box
        mCompletingRegionName = region_name;
        LLWorldMapMessage::getInstance()->sendNamedRegionRequest(region_name);
        LLStringUtil::toLower(mCompletingRegionName);
        LLWorldMap::getInstance()->setTrackingCommit();
    }
}

void LLFloaterWorldMap::observeInventory(LLInventoryModel* model)
{
    if(mInventory)
    {
        mInventory->removeObserver(mInventoryObserver);
        delete mInventoryObserver;
        mInventory = NULL;
        mInventoryObserver = NULL;
    }
    if(model)
    {
        mInventory = model;
        mInventoryObserver = new LLMapInventoryObserver;
        // Inventory deletes all observers on shutdown
        mInventory->addObserver(mInventoryObserver);
        inventoryChanged();
    }
}

void LLFloaterWorldMap::inventoryChanged()
{
    if(!LLTracker::getTrackedLandmarkItemID().isNull())
    {
        LLUUID item_id = LLTracker::getTrackedLandmarkItemID();
        buildLandmarkIDLists();
        trackLandmark(item_id);
    }
}

void LLFloaterWorldMap::observeFriends()
{
    if(!mFriendObserver)
    {
        mFriendObserver = new LLMapFriendObserver;
        LLAvatarTracker::instance().addObserver(mFriendObserver);
        friendsChanged();
    }
}

void LLFloaterWorldMap::friendsChanged()
{
    LLAvatarTracker& t = LLAvatarTracker::instance();
    const LLUUID& avatar_id = t.getAvatarID();
    buildAvatarIDList();
    if(avatar_id.notNull())
    {
        LLCtrlSelectionInterface *iface = childGetSelectionInterface("friend combo");
        const LLRelationship* buddy_info = t.getBuddyInfo(avatar_id);
        if(!iface ||
           !iface->setCurrentByID(avatar_id) ||
           (buddy_info && !buddy_info->isRightGrantedFrom(LLRelationship::GRANT_MAP_LOCATION)) ||
           gAgent.isGodlike())
        {
            LLTracker::stopTracking(false);
        }
    }
}

// No longer really builds a list.  Instead, just updates mAvatarCombo.
void LLFloaterWorldMap::buildAvatarIDList()
{
    LLCtrlListInterface *list = mListFriendCombo;
    if (!list) return;

    // Delete all but the "None" entry
    S32 list_size = list->getItemCount();
    if (list_size > 1)
    {
        list->selectItemRange(1, -1);
        list->operateOnSelection(LLCtrlListInterface::OP_DELETE);
    }

    // Get all of the calling cards for avatar that are currently online
    LLCollectMappableBuddies collector;
    LLAvatarTracker::instance().applyFunctor(collector);
    LLCollectMappableBuddies::buddy_map_t::iterator it;
    LLCollectMappableBuddies::buddy_map_t::iterator end;
    it = collector.mMappable.begin();
    end = collector.mMappable.end();
    for( ; it != end; ++it)
    {
        list->addSimpleElement((*it).second, ADD_BOTTOM, (*it).first);
    }

    list->setCurrentByID( LLAvatarTracker::instance().getAvatarID() );
    list->selectFirstItem();
}


void LLFloaterWorldMap::buildLandmarkIDLists()
{
    LLCtrlListInterface *list = mListLandmarkCombo;
    if (!list) return;

    // Delete all but the "None" entry
    S32 list_size = list->getItemCount();
    if (list_size > 1)
    {
        list->selectItemRange(1, -1);
        list->operateOnSelection(LLCtrlListInterface::OP_DELETE);
    }

    mLandmarkItemIDList.clear();
    mLandmarkAssetIDList.clear();

    // Get all of the current landmarks
    mLandmarkAssetIDList.push_back( LLUUID::null );
    mLandmarkItemIDList.push_back( LLUUID::null );

    mLandmarkAssetIDList.push_back( sHomeID );
    mLandmarkItemIDList.push_back( sHomeID );

    LLInventoryModel::cat_array_t cats;
    LLInventoryModel::item_array_t items;
    LLIsType is_landmark(LLAssetType::AT_LANDMARK);
    gInventory.collectDescendentsIf(gInventory.getRootFolderID(),
                                    cats,
                                    items,
                                    LLInventoryModel::EXCLUDE_TRASH,
                                    is_landmark);

    std::sort(items.begin(), items.end(), LLViewerInventoryItem::comparePointers());

    mLandmarkAssetIDList.reserve(mLandmarkAssetIDList.size() + items.size());
    mLandmarkItemIDList.reserve(mLandmarkItemIDList.size() + items.size());

    auto count = items.size();
    for(size_t i = 0; i < count; ++i)
    {
        LLInventoryItem* item = items.at(i);

        list->addSimpleElement(item->getName(), ADD_BOTTOM, item->getUUID());

        mLandmarkAssetIDList.push_back( item->getAssetUUID() );
        mLandmarkItemIDList.push_back( item->getUUID() );
    }

    list->selectFirstItem();
}


F32 LLFloaterWorldMap::getDistanceToDestination(const LLVector3d &destination,
                                                F32 z_attenuation) const
{
    LLVector3d delta = destination - gAgent.getPositionGlobal();
    // by attenuating the z-component we effectively
    // give more weight to the x-y plane
    delta.mdV[VZ] *= z_attenuation;
    F32 distance = (F32)delta.magVec();
    return distance;
}


void LLFloaterWorldMap::clearLocationSelection(bool clear_ui, bool dest_reached)
{
    LLCtrlListInterface *list = mListSearchResults;
    if (list && (!dest_reached || (list->getItemCount() == 1)))
    {
        list->operateOnAll(LLCtrlListInterface::OP_DELETE);
    }
    LLWorldMap::getInstance()->cancelTracking();
    mCompletingRegionName = "";
}


void LLFloaterWorldMap::clearLandmarkSelection(bool clear_ui)
{
    if (clear_ui || !childHasKeyboardFocus("landmark combo"))
    {
        LLCtrlListInterface *list = mListLandmarkCombo;
        if (list)
        {
            list->selectByValue( "None" );
        }
    }
}


void LLFloaterWorldMap::clearAvatarSelection(bool clear_ui)
{
    if (clear_ui || !childHasKeyboardFocus("friend combo"))
    {
        mTrackedStatus = LLTracker::TRACKING_NOTHING;
        LLCtrlListInterface *list = mListFriendCombo;
        if (list && list->getSelectedValue().asString() != "None")
        {
            list->selectByValue( "None" );
        }
    }
}


// Adjust the maximally zoomed out limit of the zoom slider so you
// can see the whole world, plus a little.
void LLFloaterWorldMap::adjustZoomSliderBounds()
{
    // Merov: we switched from using the "world size" (which varies depending where the user went) to a fixed
    // width of 512 regions max visible at a time. This makes the zoom slider works in a consistent way across
    // sessions and doesn't prevent the user to pan the world if it was to grow a lot beyond that limit.
    // Currently (01/26/09), this value allows the whole grid to be visible in a 1024x1024 window.
    S32 world_width_regions  = MAX_VISIBLE_REGIONS;
    S32 world_height_regions = MAX_VISIBLE_REGIONS;

    // Find how much space we have to display the world
    LLRect view_rect = mMapView->getRect();

    // View size in pixels
    S32 view_width = view_rect.getWidth();
    S32 view_height = view_rect.getHeight();

    // Pixels per region to display entire width/height
    F32 width_pixels_per_region = (F32) view_width / (F32) world_width_regions;
    F32 height_pixels_per_region = (F32) view_height / (F32) world_height_regions;

    F32 pixels_per_region = llmin(width_pixels_per_region,
                                  height_pixels_per_region);

    // Round pixels per region to an even number of slider increments
    S32 slider_units = llfloor(pixels_per_region / 0.2f);
    pixels_per_region = slider_units * 0.2f;

    // Make sure the zoom slider can be moved at least a little bit.
    // Likewise, less than the increment pixels per region is just silly.
    pixels_per_region = llclamp(pixels_per_region, 1.f, ZOOM_MAX);

    F32 min_power = log(pixels_per_region/256.f)/log(2.f);

    mZoomSlider->setMinValue(min_power);
}


//-------------------------------------------------------------------------
// User interface widget callbacks
//-------------------------------------------------------------------------

void LLFloaterWorldMap::onGoHome()
{
    gAgent.teleportHome();
    closeFloater();
}


void LLFloaterWorldMap::onLandmarkComboPrearrange( )
{
    if( mIsClosing )
    {
        return;
    }

    LLCtrlListInterface *list = mListLandmarkCombo;
    if (!list) return;

    LLUUID current_choice = list->getCurrentID();

    buildLandmarkIDLists();

    if( current_choice.isNull() || !list->setCurrentByID( current_choice ) )
    {
        LLTracker::stopTracking(false);
    }

}

void LLFloaterWorldMap::onComboTextEntry()
{
    // Reset the tracking whenever we start typing into any of the search fields,
    // so that hitting <enter> does an auto-complete versus teleporting us to the
    // previously selected landmark/friend.
    LLTracker::stopTracking(false);
}

void LLFloaterWorldMap::onSearchTextEntry( )
{
    onComboTextEntry();
    updateSearchEnabled();
}


void LLFloaterWorldMap::onLandmarkComboCommit()
{
    if( mIsClosing )
    {
        return;
    }

    LLCtrlListInterface *list = mListLandmarkCombo;
    if (!list) return;

    LLUUID asset_id;
    LLUUID item_id = list->getCurrentID();

    LLTracker::stopTracking(false);

    //RN: stopTracking() clears current combobox selection, need to reassert it here
    list->setCurrentByID(item_id);

    if( item_id.isNull() )
    {
    }
    else if( item_id == sHomeID )
    {
        asset_id = sHomeID;
    }
    else
    {
        LLInventoryItem* item = gInventory.getItem( item_id );
        if( item )
        {
            asset_id = item->getAssetUUID();
        }
        else
        {
            // Something went wrong, so revert to a safe value.
            item_id.setNull();
        }
    }

    trackLandmark( item_id);
    onShowTargetBtn();

    // Reset to user postion if nothing is tracked
    mSetToUserPosition = ( LLTracker::getTrackingStatus() == LLTracker::TRACKING_NOTHING );
}

// static
void LLFloaterWorldMap::onAvatarComboPrearrange( )
{
    if( mIsClosing )
    {
        return;
    }

    LLCtrlListInterface *list = mListFriendCombo;
    if (!list) return;

    LLUUID current_choice;

    if( LLAvatarTracker::instance().haveTrackingInfo() )
    {
        current_choice = LLAvatarTracker::instance().getAvatarID();
    }

    buildAvatarIDList();

    if( !list->setCurrentByID( current_choice ) || current_choice.isNull() )
    {
        LLTracker::stopTracking(false);
    }
}

void LLFloaterWorldMap::onAvatarComboCommit()
{
    if( mIsClosing )
    {
        return;
    }

    LLCtrlListInterface *list = mListFriendCombo;
    if (!list) return;

    const LLUUID& new_avatar_id = list->getCurrentID();
    if (new_avatar_id.notNull())
    {
        std::string name;
        LLComboBox* combo = getChild<LLComboBox>("friend combo");
        if (combo) name = combo->getSimple();
        trackAvatar(new_avatar_id, name);
        onShowTargetBtn();
    }
    else
    {   // Reset to user postion if nothing is tracked
        mSetToUserPosition = ( LLTracker::getTrackingStatus() == LLTracker::TRACKING_NOTHING );
    }
}

void LLFloaterWorldMap::avatarTrackFromSlapp( const LLUUID& id )
{
    trackAvatar( id, "av" );
    onShowTargetBtn();
}

void LLFloaterWorldMap::onLocationFocusChanged( LLFocusableElement* focus )
{
    updateSearchEnabled();
}

void LLFloaterWorldMap::updateSearchEnabled()
{
    if (childHasKeyboardFocus("location") &&
        mLocationEditor->getValue().asString().length() > 0)
    {
        setDefaultBtn("DoSearch");
    }
    else
    {
        setDefaultBtn(NULL);
    }
}

void LLFloaterWorldMap::onLocationCommit()
{
    if( mIsClosing )
    {
        return;
    }

    clearLocationSelection(false);
    mCompletingRegionName = "";
    mLastRegionName = "";

    std::string str = mLocationEditor->getValue().asString();

    // Trim any leading and trailing spaces in the search target
    std::string saved_str = str;
    LLStringUtil::trim( str );
    if ( str != saved_str )
    {   // Set the value in the UI if any spaces were removed
        mLocationEditor->setValue(str);
    }

    // Don't try completing empty name (STORM-1427).
    if (str.empty())
    {
        return;
    }

    LLStringUtil::toLower(str);
    mCompletingRegionName = str;
    LLWorldMap::getInstance()->setTrackingCommit();
    if (str.length() >= 3)
    {
        LLWorldMapMessage::getInstance()->sendNamedRegionRequest(str);
    }
    else
    {
        str += "#";
        LLWorldMapMessage::getInstance()->sendNamedRegionRequest(str);
    }
}

void LLFloaterWorldMap::onCoordinatesCommit()
{
    if( mIsClosing )
    {
        return;
    }

    S32 x_coord = (S32)mTeleportCoordSpinX->getValue().asReal();
    S32 y_coord = (S32)mTeleportCoordSpinY->getValue().asReal();
    S32 z_coord = (S32)mTeleportCoordSpinZ->getValue().asReal();

    const std::string region_name = mLocationEditor->getValue().asString();

    trackURL( region_name, x_coord, y_coord, z_coord );
}

void LLFloaterWorldMap::onClearBtn()
{
    mTrackedStatus = LLTracker::TRACKING_NOTHING;
    LLTracker::stopTracking(true);
    LLWorldMap::getInstance()->cancelTracking();
    mSLURL = LLSLURL();                 // Clear the SLURL since it's invalid
    mSetToUserPosition = true;  // Revert back to the current user position
}

void LLFloaterWorldMap::onShowTargetBtn()
{
    centerOnTarget(true);
}

void LLFloaterWorldMap::onShowAgentBtn()
{
    mMapView->setPanWithInterpTime(0, 0, false, 0.1f);  // false == animate
    // Set flag so user's location will be displayed if not tracking anything else
    mSetToUserPosition = true;
}

void LLFloaterWorldMap::onClickTeleportBtn()
{
    teleport();
}

void LLFloaterWorldMap::onCopySLURL()
{
    getWindow()->copyTextToClipboard(utf8str_to_wstring(mSLURL.getSLURLString()));

    LLSD args;
    args["SLURL"] = mSLURL.getSLURLString();

    LLNotificationsUtil::add("CopySLURL", args);
}

void LLFloaterWorldMap::onExpandCollapseBtn()
{
    LLLayoutStack* floater_stack = getChild<LLLayoutStack>("floater_map_stack");
    LLLayoutPanel* controls_panel = getChild<LLLayoutPanel>("controls_lp");

    bool toggle_collapse = !controls_panel->isCollapsed();
    floater_stack->collapsePanel(controls_panel, toggle_collapse);
    floater_stack->updateLayout();

    std::string image_name = getString(toggle_collapse ? "expand_icon" : "collapse_icon");
    std::string tooltip = getString(toggle_collapse ? "expand_tooltip" : "collapse_tooltip");
    getChild<LLIconCtrl>("expand_collapse_icon")->setImage(LLUI::getUIImage(image_name));
    getChild<LLIconCtrl>("expand_collapse_icon")->setToolTip(tooltip);
    getChild<LLPanel>("expand_btn_panel")->setToolTip(tooltip);
}

// protected
void LLFloaterWorldMap::centerOnTarget(bool animate)
{
    LLVector3d pos_global;
    if(LLTracker::getTrackingStatus() != LLTracker::TRACKING_NOTHING)
    {
        LLVector3d tracked_position = LLTracker::getTrackedPositionGlobal();
        //RN: tracker doesn't allow us to query completion, so we check for a tracking position of
        // absolute zero, and keep trying in the draw loop
        if (tracked_position.isExactlyZero())
        {
            mWaitingForTracker = true;
            return;
        }
        else
        {
            // We've got the position finally, so we're no longer busy. JC
            //          getWindow()->decBusyCount();
            pos_global = LLTracker::getTrackedPositionGlobal() - gAgentCamera.getCameraPositionGlobal();
        }
    }
    else if(LLWorldMap::getInstance()->isTracking())
    {
        pos_global = LLWorldMap::getInstance()->getTrackedPositionGlobal() - gAgentCamera.getCameraPositionGlobal();;



    }
    else
    {
        // default behavior = center on agent
        pos_global.clearVec();
    }

    F64 map_scale = (F64)mMapView->getScale();
    mMapView->setPanWithInterpTime(-llfloor((F32)(pos_global.mdV[VX] * map_scale / REGION_WIDTH_METERS)),
                           -llfloor((F32)(pos_global.mdV[VY] * map_scale / REGION_WIDTH_METERS)),
                           !animate, 0.1f);
    mWaitingForTracker = false;
}

// protected
void LLFloaterWorldMap::fly()
{
    LLVector3d pos_global = LLTracker::getTrackedPositionGlobal();

    // Start the autopilot and close the floater,
    // so we can see where we're flying
    if (!pos_global.isExactlyZero())
    {
        gAgent.startAutoPilotGlobal( pos_global );
        closeFloater();
    }
    else
    {
        make_ui_sound("UISndInvalidOp");
    }
}


// protected
void LLFloaterWorldMap::teleport()
{
    bool teleport_home = false;
    LLVector3d pos_global;
    LLAvatarTracker& av_tracker = LLAvatarTracker::instance();

    LLTracker::ETrackingStatus tracking_status = LLTracker::getTrackingStatus();
    if (LLTracker::TRACKING_AVATAR == tracking_status
        && av_tracker.haveTrackingInfo() )
    {
        pos_global = av_tracker.getGlobalPos();
        pos_global.mdV[VZ] = mTeleportCoordSpinZ->getValue();
    }
    else if ( LLTracker::TRACKING_LANDMARK == tracking_status)
    {
        if( LLTracker::getTrackedLandmarkAssetID() == sHomeID )
        {
            teleport_home = true;
        }
        else
        {
            LLLandmark* landmark = gLandmarkList.getAsset( LLTracker::getTrackedLandmarkAssetID() );
            LLUUID region_id;
            if(landmark
               && !landmark->getGlobalPos(pos_global)
               && landmark->getRegionID(region_id))
            {
                LLLandmark::requestRegionHandle(
                                                gMessageSystem,
                                                gAgent.getRegionHost(),
                                                region_id,
                                                NULL);
            }
        }
    }
    else if ( LLTracker::TRACKING_LOCATION == tracking_status)
    {
        pos_global = LLTracker::getTrackedPositionGlobal();
    }
    else
    {
        make_ui_sound("UISndInvalidOp");
    }

    // Do the teleport, which will also close the floater
    if (teleport_home)
    {
        gAgent.teleportHome();
    }
    else if (!pos_global.isExactlyZero())
    {
        if(LLTracker::TRACKING_LANDMARK == tracking_status)
        {
            gAgent.teleportViaLandmark(LLTracker::getTrackedLandmarkAssetID());
        }
        else
        {
            gAgent.teleportViaLocation( pos_global );
        }
    }
}

void LLFloaterWorldMap::flyToLandmark()
{
    LLVector3d destination_pos_global;
    if( !LLTracker::getTrackedLandmarkAssetID().isNull() )
    {
        if (LLTracker::hasLandmarkPosition())
        {
            gAgent.startAutoPilotGlobal( LLTracker::getTrackedPositionGlobal() );
        }
    }
}

void LLFloaterWorldMap::teleportToLandmark()
{
    bool has_destination = false;
    LLUUID destination_id; // Null means "home"

    if( LLTracker::getTrackedLandmarkAssetID() == sHomeID )
    {
        has_destination = true;
    }
    else
    {
        LLLandmark* landmark = gLandmarkList.getAsset( LLTracker::getTrackedLandmarkAssetID() );
        LLVector3d global_pos;
        if(landmark && landmark->getGlobalPos(global_pos))
        {
            destination_id = LLTracker::getTrackedLandmarkAssetID();
            has_destination = true;
        }
        else if(landmark)
        {
            // pop up an anonymous request request.
            LLUUID region_id;
            if(landmark->getRegionID(region_id))
            {
                LLLandmark::requestRegionHandle(
                                                gMessageSystem,
                                                gAgent.getRegionHost(),
                                                region_id,
                                                NULL);
            }
        }
    }

    if( has_destination )
    {
        gAgent.teleportViaLandmark( destination_id );
    }
}


void LLFloaterWorldMap::teleportToAvatar()
{
    LLAvatarTracker& av_tracker = LLAvatarTracker::instance();
    if(av_tracker.haveTrackingInfo())
    {
        LLVector3d pos_global = av_tracker.getGlobalPos();
        gAgent.teleportViaLocation( pos_global );
    }
}


void LLFloaterWorldMap::flyToAvatar()
{
    if( LLAvatarTracker::instance().haveTrackingInfo() )
    {
        gAgent.startAutoPilotGlobal( LLAvatarTracker::instance().getGlobalPos() );
    }
}

void LLFloaterWorldMap::updateSims(bool found_null_sim)
{
    if (mCompletingRegionName == "")
    {
        return;
    }

    LLScrollListCtrl *list = getChild<LLScrollListCtrl>("search_results");
    list->operateOnAll(LLCtrlListInterface::OP_DELETE);

    auto name_length = mCompletingRegionName.length();

    LLSD match;

    S32 num_results = 0;

    std::vector<std::pair <U64, LLSimInfo*> > sim_info_vec(LLWorldMap::getInstance()->getRegionMap().begin(), LLWorldMap::getInstance()->getRegionMap().end());
    std::sort(sim_info_vec.begin(), sim_info_vec.end(), SortRegionNames());

    for (std::vector<std::pair <U64, LLSimInfo*> >::const_iterator it = sim_info_vec.begin(); it != sim_info_vec.end(); ++it)
    {
        LLSimInfo* info = it->second;
        std::string sim_name_lower = info->getName();
        LLStringUtil::toLower(sim_name_lower);

        if (sim_name_lower.substr(0, name_length) == mCompletingRegionName)
        {
            if (sim_name_lower == mCompletingRegionName)
            {
                match = info->getName();
            }

            LLSD value;
            value["id"] = info->getName();
            value["columns"][0]["column"] = "sim_name";
            value["columns"][0]["value"] = info->getName();
            list->addElement(value);
            num_results++;
        }
    }

    if (found_null_sim)
    {
        mCompletingRegionName = "";
    }

    if (num_results > 0)
    {
        // if match found, highlight it and go
        if (!match.isUndefined())
        {
            list->selectByValue(match);
        }
        // else select first found item
        else
        {
            list->selectFirstItem();
        }
        getChild<LLUICtrl>("search_results")->setFocus(true);
        onCommitSearchResult();
    }
    else
    {
        // if we found nothing, say "none"
        list->setCommentText(LLTrans::getString("worldmap_results_none_found"));
        list->operateOnAll(LLCtrlListInterface::OP_DESELECT);
    }
}

void LLFloaterWorldMap::onTeleportFinished()
{
    if(isInVisibleChain())
    {
        mMapView->setPan(0, 0, true);
    }
}

void LLFloaterWorldMap::onCommitSearchResult()
{
    LLCtrlListInterface *list = mListSearchResults;
    if (!list) return;

    LLSD selected_value = list->getSelectedValue();
    std::string sim_name = selected_value.asString();
    if (sim_name.empty())
    {
        return;
    }
    LLStringUtil::toLower(sim_name);

    LLWorldMap::sim_info_map_t::const_iterator end = LLWorldMap::instance().getRegionMap().end();
    for (LLWorldMap::sim_info_map_t::const_iterator it = LLWorldMap::getInstance()->getRegionMap().begin(); it != end; ++it)
    {
        LLSimInfo* info = it->second;

        if (info->isName(sim_name))
        {
            LLVector3d pos_global = info->getGlobalOrigin();

            const F64 SIM_COORD_DEFAULT = 128.0;
            LLVector3 pos_local(SIM_COORD_DEFAULT, SIM_COORD_DEFAULT, 0.0f);

            // Did this value come from a trackURL() request?
            if (!mCompletingRegionPos.isExactlyZero())
            {
                pos_local = mCompletingRegionPos;
                mCompletingRegionPos.clear();
            }
            pos_global.mdV[VX] += (F64)pos_local.mV[VX];
            pos_global.mdV[VY] += (F64)pos_local.mV[VY];
            pos_global.mdV[VZ] = (F64)pos_local.mV[VZ];

            mLocationEditor->setValue(sim_name);
            trackLocation(pos_global);
            setDefaultBtn("Teleport");
            break;
        }
    }

    onShowTargetBtn();
}

void LLFloaterWorldMap::onChangeMaturity()
{
    bool can_access_mature = gAgent.canAccessMature();
    bool can_access_adult = gAgent.canAccessAdult();

    getChildView("events_mature_icon")->setVisible( can_access_mature);
    getChildView("events_mature_label")->setVisible( can_access_mature);
    getChildView("events_mature_chk")->setVisible( can_access_mature);

    getChildView("events_adult_icon")->setVisible( can_access_adult);
    getChildView("events_adult_label")->setVisible( can_access_adult);
    getChildView("events_adult_chk")->setVisible( can_access_adult);

    // disable mature / adult events.
    if (!can_access_mature)
    {
        gSavedSettings.setBOOL("ShowMatureEvents", false);
    }
    if (!can_access_adult)
    {
        gSavedSettings.setBOOL("ShowAdultEvents", false);
    }
}

void LLFloaterWorldMap::onFocusLost()
{
    gViewerWindow->showCursor();
    mMapView->mPanning = false;
}

LLPanelHideBeacon::LLPanelHideBeacon() :
    mHideButton(NULL)
{
}

// static
LLPanelHideBeacon* LLPanelHideBeacon::getInstance()
{
    static LLPanelHideBeacon* panel = getPanelHideBeacon();
    return panel;
}


bool LLPanelHideBeacon::postBuild()
{
    mHideButton = getChild<LLButton>("hide_beacon_btn");
    mHideButton->setCommitCallback(boost::bind(&LLPanelHideBeacon::onHideButtonClick, this));

    gViewerWindow->setOnWorldViewRectUpdated(boost::bind(&LLPanelHideBeacon::updatePosition, this));

    return true;
}

//virtual
void LLPanelHideBeacon::draw()
{
    if (!LLTracker::isTracking(NULL))
    {
        mHideButton->setVisible(false);
        return;
    }
    mHideButton->setVisible(true);
    updatePosition();
    LLPanel::draw();
}

//virtual
void LLPanelHideBeacon::setVisible(bool visible)
{
    if (gAgentCamera.getCameraMode() == CAMERA_MODE_MOUSELOOK) visible = false;

    if (visible)
    {
        updatePosition();
    }

    LLPanel::setVisible(visible);
}


//static
LLPanelHideBeacon* LLPanelHideBeacon::getPanelHideBeacon()
{
    LLPanelHideBeacon* panel = new LLPanelHideBeacon();
    panel->buildFromFile("panel_hide_beacon.xml");

    LL_INFOS() << "Build LLPanelHideBeacon panel" << LL_ENDL;

    panel->updatePosition();
    return panel;
}

void LLPanelHideBeacon::onHideButtonClick()
{
    LLFloaterWorldMap* instance = LLFloaterWorldMap::getInstance();
    if (instance)
    {
        instance->onClearBtn();
    }
}

/**
* Updates position of the panel (similar to Stand & Stop Flying panel).
*/
void LLPanelHideBeacon::updatePosition()
{
    S32 bottom_tb_center = 0;
    if (LLToolBar* toolbar_bottom = gToolBarView->getToolbar(LLToolBarEnums::TOOLBAR_BOTTOM))
    {
        bottom_tb_center = toolbar_bottom->getRect().getCenterX();
    }

    S32 left_tb_width = 0;
    if (LLToolBar* toolbar_left = gToolBarView->getToolbar(LLToolBarEnums::TOOLBAR_LEFT))
    {
        left_tb_width = toolbar_left->getRect().getWidth();
    }

    if (gToolBarView != NULL && gToolBarView->getToolbar(LLToolBarEnums::TOOLBAR_LEFT)->hasButtons())
    {
        S32 x_pos = bottom_tb_center - getRect().getWidth() / 2 - left_tb_width;
        setOrigin( x_pos + HIDE_BEACON_PAD, 0);
    }
    else
    {
        S32 x_pos = bottom_tb_center - getRect().getWidth() / 2;
        setOrigin( x_pos + HIDE_BEACON_PAD, 0);
    }
}