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path: root/indra/newview/llpanelteleporthistory.cpp
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/**
 * @file llpanelteleporthistory.cpp
 * @brief Teleport history represented by a scrolling list
 *
 * $LicenseInfo:firstyear=2009&license=viewerlgpl$
 * 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
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llfloaterreg.h"
#include "llmenubutton.h"

#include "llfloaterworldmap.h"
#include "llpanelteleporthistory.h"
#include "llworldmap.h"
#include "llteleporthistorystorage.h"
#include "lltextutil.h"

#include "llaccordionctrl.h"
#include "llaccordionctrltab.h"
#include "llflatlistview.h"
#include "llfloatersidepanelcontainer.h"
#include "llnotificationsutil.h"
#include "lltextbox.h"
#include "lltoggleablemenu.h"
#include "llviewermenu.h"
#include "lllandmarkactions.h"
#include "llclipboard.h"
#include "lltrans.h"

// Maximum number of items that can be added to a list in one pass.
// Used to limit time spent for items list update per frame.
static const U32 ADD_LIMIT = 50;

static const std::string COLLAPSED_BY_USER = "collapsed_by_user";

class LLTeleportHistoryFlatItem : public LLPanel
{
public:
    LLTeleportHistoryFlatItem(S32 index, LLToggleableMenu *menu, const std::string &region_name,
                                             LLDate date, const std::string &hl);
    virtual ~LLTeleportHistoryFlatItem();

    virtual bool postBuild();

    /*virtual*/ S32 notify(const LLSD& info);

    S32 getIndex() { return mIndex; }
    void setIndex(S32 index) { mIndex = index; }
    const std::string& getRegionName() { return mRegionName;}
    void setRegionName(const std::string& name);
    void setDate(LLDate date);
    void setHighlightedText(const std::string& text);
    void updateTitle();
    void updateTimestamp();
    std::string getTimestamp();

    /*virtual*/ void setValue(const LLSD& value);

    void onMouseEnter(S32 x, S32 y, MASK mask);
    void onMouseLeave(S32 x, S32 y, MASK mask);
    virtual bool handleRightMouseDown(S32 x, S32 y, MASK mask);

    static void showPlaceInfoPanel(S32 index);

    LLHandle<LLTeleportHistoryFlatItem> getItemHandle() { mItemHandle.bind(this); return mItemHandle; }

private:
    void onProfileBtnClick();
    void showMenu(S32 x, S32 y);

    LLButton* mProfileBtn;
    LLTextBox* mTitle;
    LLTextBox* mTimeTextBox;

    LLToggleableMenu *mMenu;

    S32 mIndex;
    std::string mRegionName;
    std::string mHighlight;
    LLDate      mDate;
    LLRootHandle<LLTeleportHistoryFlatItem> mItemHandle;
};

////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////

class LLTeleportHistoryFlatItemStorage: public LLSingleton<LLTeleportHistoryFlatItemStorage>
{
    LLSINGLETON_EMPTY_CTOR(LLTeleportHistoryFlatItemStorage);
protected:
    typedef std::vector< LLHandle<LLTeleportHistoryFlatItem> > flat_item_list_t;

public:
    LLTeleportHistoryFlatItem* getFlatItemForPersistentItem (
        LLToggleableMenu *menu,
        const LLTeleportHistoryPersistentItem& persistent_item,
        const S32 cur_item_index,
        const std::string &hl);

    void removeItem(LLTeleportHistoryFlatItem* item);

    void purge();

private:

    flat_item_list_t mItems;
};

////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////

LLTeleportHistoryFlatItem::LLTeleportHistoryFlatItem(S32 index, LLToggleableMenu *menu, const std::string &region_name,
                                                                LLDate date, const std::string &hl)
:   LLPanel(),
    mIndex(index),
    mMenu(menu),
    mRegionName(region_name),
    mDate(date),
    mHighlight(hl)
{
    buildFromFile("panel_teleport_history_item.xml");
}

LLTeleportHistoryFlatItem::~LLTeleportHistoryFlatItem()
{
}

//virtual
bool LLTeleportHistoryFlatItem::postBuild()
{
    mTitle = getChild<LLTextBox>("region");

    mTimeTextBox = getChild<LLTextBox>("timestamp");

    mProfileBtn = getChild<LLButton>("profile_btn");

    mProfileBtn->setClickedCallback(boost::bind(&LLTeleportHistoryFlatItem::onProfileBtnClick, this));

    updateTitle();
    updateTimestamp();

    return true;
}

S32 LLTeleportHistoryFlatItem::notify(const LLSD& info)
{
    if(info.has("detach"))
    {
        delete mMouseDownSignal;
        mMouseDownSignal = NULL;
        delete mRightMouseDownSignal;
        mRightMouseDownSignal = NULL;
        return 1;
    }
    return 0;
}

void LLTeleportHistoryFlatItem::setValue(const LLSD& value)
{
    if (!value.isMap()) return;;
    if (!value.has("selected")) return;
    getChildView("selected_icon")->setVisible( value["selected"]);
}

void LLTeleportHistoryFlatItem::setHighlightedText(const std::string& text)
{
    mHighlight = text;
}

void LLTeleportHistoryFlatItem::setRegionName(const std::string& name)
{
    mRegionName = name;
}

void LLTeleportHistoryFlatItem::setDate(LLDate date)
{
    mDate = date;
}

std::string LLTeleportHistoryFlatItem::getTimestamp()
{
    const LLDate &date = mDate;
    std::string timestamp = "";

    LLDate now = LLDate::now();
    S32 now_year, now_month, now_day, now_hour, now_min, now_sec;
    now.split(&now_year, &now_month, &now_day, &now_hour, &now_min, &now_sec);

    const S32 seconds_in_day = 24 * 60 * 60;
    S32 seconds_today = now_hour * 60 * 60 + now_min * 60 + now_sec;
    S32 time_diff = (S32) now.secondsSinceEpoch() - (S32) date.secondsSinceEpoch();

    // Only show timestamp for today and yesterday
    if(time_diff < seconds_today + seconds_in_day)
    {
        timestamp = "[" + LLTrans::getString("TimeHour12")+"]:["
                        + LLTrans::getString("TimeMin")+"] ["+ LLTrans::getString("TimeAMPM")+"]";
        LLSD substitution;
        substitution["datetime"] = (S32) date.secondsSinceEpoch();
        LLStringUtil::format(timestamp, substitution);
    }

    return timestamp;

}

void LLTeleportHistoryFlatItem::updateTitle()
{
    static LLUIColor sFgColor = LLUIColorTable::instance().getColor("MenuItemEnabledColor", LLColor4U(255, 255, 255));

    LLTextUtil::textboxSetHighlightedVal(
        mTitle,
        LLStyle::Params().color(sFgColor),
        mRegionName,
        mHighlight);
}

void LLTeleportHistoryFlatItem::updateTimestamp()
{
    static LLUIColor sFgColor = LLUIColorTable::instance().getColor("MenuItemEnabledColor", LLColor4U(255, 255, 255));

    LLTextUtil::textboxSetHighlightedVal(
        mTimeTextBox,
        LLStyle::Params().color(sFgColor),
        getTimestamp(),
        mHighlight);
}

void LLTeleportHistoryFlatItem::onMouseEnter(S32 x, S32 y, MASK mask)
{
    getChildView("hovered_icon")->setVisible( true);
    mProfileBtn->setVisible(true);

    LLPanel::onMouseEnter(x, y, mask);
}

void LLTeleportHistoryFlatItem::onMouseLeave(S32 x, S32 y, MASK mask)
{
    getChildView("hovered_icon")->setVisible( false);
    mProfileBtn->setVisible(false);

    LLPanel::onMouseLeave(x, y, mask);
}

// virtual
bool LLTeleportHistoryFlatItem::handleRightMouseDown(S32 x, S32 y, MASK mask)
{
    LLPanel::handleRightMouseDown(x, y, mask);
    showMenu(x, y);
    return true;
}

void LLTeleportHistoryFlatItem::showPlaceInfoPanel(S32 index)
{
    LLSD params;
    params["id"] = index;
    params["type"] = "teleport_history";

    LLFloaterSidePanelContainer::showPanel("places", params);
}

void LLTeleportHistoryFlatItem::onProfileBtnClick()
{
    LLTeleportHistoryFlatItem::showPlaceInfoPanel(mIndex);
}

void LLTeleportHistoryFlatItem::showMenu(S32 x, S32 y)
{
    mMenu->setButtonRect(this);
    mMenu->buildDrawLabels();
    mMenu->arrangeAndClear();
    mMenu->updateParent(LLMenuGL::sMenuContainer);

    LLMenuGL::showPopup(this, mMenu, x, y);
}

////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////

LLTeleportHistoryFlatItem*
LLTeleportHistoryFlatItemStorage::getFlatItemForPersistentItem (
    LLToggleableMenu *menu,
    const LLTeleportHistoryPersistentItem& persistent_item,
    const S32 cur_item_index,
    const std::string &hl)
{
    LLTeleportHistoryFlatItem* item = NULL;
    if ( cur_item_index < (S32) mItems.size() )
    {
        item = mItems[cur_item_index].get();
        if (item->getParent() == NULL)
        {
            item->setIndex(cur_item_index);
            item->setRegionName(persistent_item.mTitle);
            item->setDate(persistent_item.mDate);
            item->setHighlightedText(hl);
            item->setVisible(true);
            item->updateTitle();
            item->updateTimestamp();
        }
        else
        {
            // Item already added to parent
            item = NULL;
        }
    }

    if ( !item )
    {
        item = new LLTeleportHistoryFlatItem(cur_item_index,
                                             menu,
                                             persistent_item.mTitle,
                                             persistent_item.mDate,
                                             hl);
        mItems.push_back(item->getItemHandle());
    }

    return item;
}

void LLTeleportHistoryFlatItemStorage::removeItem(LLTeleportHistoryFlatItem* item)
{
    if (item)
    {
        flat_item_list_t::iterator item_iter = std::find(mItems.begin(),
                                                         mItems.end(),
                                                         item->getItemHandle());
        if (item_iter != mItems.end())
        {
            mItems.erase(item_iter);
        }
    }
}

void LLTeleportHistoryFlatItemStorage::purge()
{
    for ( flat_item_list_t::iterator
              it = mItems.begin(),
              it_end = mItems.end();
          it != it_end; ++it )
    {
        LLHandle <LLTeleportHistoryFlatItem> item_handle = *it;
        if ( !item_handle.isDead() && item_handle.get()->getParent() == NULL )
        {
            item_handle.get()->die();
        }
    }
    mItems.clear();
}

////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////


// Not yet implemented; need to remove buildPanel() from constructor when we switch
//static LLRegisterPanelClassWrapper<LLTeleportHistoryPanel> t_teleport_history("panel_teleport_history");

LLTeleportHistoryPanel::LLTeleportHistoryPanel()
    :   LLPanelPlacesTab(),
        mDirty(true),
        mCurrentItem(0),
        mTeleportHistory(NULL),
        mHistoryAccordion(NULL),
        mAccordionTabMenu(NULL),
        mLastSelectedFlatlList(NULL),
        mLastSelectedItemIndex(-1),
        mGearItemMenu(NULL),
        mSortingMenu(NULL)
{
    buildFromFile( "panel_teleport_history.xml");
}

LLTeleportHistoryPanel::~LLTeleportHistoryPanel()
{
    LLTeleportHistoryFlatItemStorage::instance().purge();
    mTeleportHistoryChangedConnection.disconnect();
}

bool LLTeleportHistoryPanel::postBuild()
{
    mCommitCallbackRegistrar.add("TeleportHistory.GearMenu.Action", boost::bind(&LLTeleportHistoryPanel::onGearMenuAction, this, _2));
    mEnableCallbackRegistrar.add("TeleportHistory.GearMenu.Enable", boost::bind(&LLTeleportHistoryPanel::isActionEnabled, this, _2));

    // init menus before list, since menus are passed to list
    mGearItemMenu = LLUICtrlFactory::getInstance()->createFromFile<LLToggleableMenu>("menu_teleport_history_item.xml", gMenuHolder, LLViewerMenuHolderGL::child_registry_t::instance());
    mGearItemMenu->setAlwaysShowMenu(true); // all items can be disabled if nothing is selected, show anyway
    mSortingMenu = LLUICtrlFactory::getInstance()->createFromFile<LLToggleableMenu>("menu_teleport_history_gear.xml", gMenuHolder, LLViewerMenuHolderGL::child_registry_t::instance());

    mTeleportHistory = LLTeleportHistoryStorage::getInstance();
    if (mTeleportHistory)
    {
        mTeleportHistoryChangedConnection = mTeleportHistory->setHistoryChangedCallback(boost::bind(&LLTeleportHistoryPanel::onTeleportHistoryChange, this, _1));
    }

    mHistoryAccordion = getChild<LLAccordionCtrl>("history_accordion");

    if (mHistoryAccordion)
    {
        for (child_list_const_iter_t iter = mHistoryAccordion->beginChild(); iter != mHistoryAccordion->endChild(); iter++)
        {
            if (dynamic_cast<LLAccordionCtrlTab*>(*iter))
            {
                LLAccordionCtrlTab* tab = (LLAccordionCtrlTab*)*iter;
                tab->setRightMouseDownCallback(boost::bind(&LLTeleportHistoryPanel::onAccordionTabRightClick, this, _1, _2, _3, _4));
                tab->setDisplayChildren(false);
                tab->setDropDownStateChangedCallback(boost::bind(&LLTeleportHistoryPanel::onAccordionExpand, this, _1, _2));

                // All accordion tabs are collapsed initially
                setAccordionCollapsedByUser(tab, true);

                mItemContainers.push_back(tab);

                LLFlatListView* fl = getFlatListViewFromTab(tab);
                if (fl)
                {
                    fl->setCommitOnSelectionChange(true);
                    fl->setDoubleClickCallback(boost::bind(&LLTeleportHistoryPanel::onDoubleClickItem, this));
                    fl->setCommitCallback(boost::bind(&LLTeleportHistoryPanel::handleItemSelect, this, fl));
                    fl->setReturnCallback(boost::bind(&LLTeleportHistoryPanel::onReturnKeyPressed, this));
                }
            }
        }

        // Open first 2 accordion tabs
        if (mItemContainers.size() > 1)
        {
            LLAccordionCtrlTab* tab = mItemContainers.at(mItemContainers.size() - 1);
            tab->setDisplayChildren(true);
            setAccordionCollapsedByUser(tab, false);
        }

        if (mItemContainers.size() > 2)
        {
            LLAccordionCtrlTab* tab = mItemContainers.at(mItemContainers.size() - 2);
            tab->setDisplayChildren(true);
            setAccordionCollapsedByUser(tab, false);
        }
    }

    return true;
}

// virtual
void LLTeleportHistoryPanel::draw()
{
    if (mDirty)
        refresh();

    LLPanelPlacesTab::draw();
}

// virtual
void LLTeleportHistoryPanel::onSearchEdit(const std::string& string)
{
    sFilterSubString = string;
    showTeleportHistory();
}

// virtual
bool LLTeleportHistoryPanel::isSingleItemSelected()
{
    return mLastSelectedFlatlList && mLastSelectedFlatlList->getSelectedItem();
}

// virtual
void LLTeleportHistoryPanel::onShowOnMap()
{
    if (!mLastSelectedFlatlList)
        return;

    LLTeleportHistoryFlatItem* itemp = dynamic_cast<LLTeleportHistoryFlatItem *> (mLastSelectedFlatlList->getSelectedItem());

    if(!itemp)
        return;

    LLVector3d global_pos = mTeleportHistory->getItems()[itemp->getIndex()].mGlobalPos;

    if (!global_pos.isExactlyZero())
    {
        LLFloaterWorldMap::getInstance()->trackLocation(global_pos);
        LLFloaterReg::showInstance("world_map", "center");
    }
}

//virtual
void LLTeleportHistoryPanel::onShowProfile()
{
    if (!mLastSelectedFlatlList)
        return;

    LLTeleportHistoryFlatItem* itemp = dynamic_cast<LLTeleportHistoryFlatItem *> (mLastSelectedFlatlList->getSelectedItem());

    if(!itemp)
        return;

    LLTeleportHistoryFlatItem::showPlaceInfoPanel(itemp->getIndex());
}

// virtual
void LLTeleportHistoryPanel::onTeleport()
{
    if (!mLastSelectedFlatlList)
        return;

    LLTeleportHistoryFlatItem* itemp = dynamic_cast<LLTeleportHistoryFlatItem *> (mLastSelectedFlatlList->getSelectedItem());
    if(!itemp)
        return;

    // teleport to existing item in history, so we don't add it again
    confirmTeleport(itemp->getIndex());
}

// virtual
void LLTeleportHistoryPanel::onRemoveSelected()
{
    LLNotificationsUtil::add("ConfirmClearTeleportHistory", LLSD(), LLSD(), boost::bind(&LLTeleportHistoryPanel::onClearTeleportHistoryDialog, this, _1, _2));
}

/*
// virtual
void LLTeleportHistoryPanel::onCopySLURL()
{
    LLScrollListItem* itemp = mHistoryItems->getFirstSelected();
    if(!itemp)
        return;

    S32 index = itemp->getColumn(LIST_INDEX)->getValue().asInteger();

    const LLTeleportHistory::slurl_list_t& hist_items = mTeleportHistory->getItems();

    LLVector3d global_pos = hist_items[index].mGlobalPos;

    U64 new_region_handle = to_region_handle(global_pos);

    LLWorldMapMessage::url_callback_t cb = boost::bind(
            &LLPanelPlacesTab::onRegionResponse, this,
            global_pos, _1, _2, _3, _4);

    LLWorldMap::getInstance()->sendHandleRegionRequest(new_region_handle, cb, std::string("unused"), false);
}
*/

// virtual
void LLTeleportHistoryPanel::updateVerbs()
{
    if (!isTabVisible())
        return;

    if (sRemoveBtn)
    {
        sRemoveBtn->setEnabled(true);
    }
}

// virtual
LLToggleableMenu* LLTeleportHistoryPanel::getSelectionMenu()
{
    return mGearItemMenu;
}

// virtual
LLToggleableMenu* LLTeleportHistoryPanel::getSortingMenu()
{
    return mSortingMenu;
}

// virtual
LLToggleableMenu* LLTeleportHistoryPanel::getCreateMenu()
{
    return NULL;
}

void LLTeleportHistoryPanel::getNextTab(const LLDate& item_date, S32& tab_idx, LLDate& tab_date)
{
    const U32 seconds_in_day = 24 * 60 * 60;

    S32 tabs_cnt = static_cast<S32>(mItemContainers.size());
    S32 curr_year = 0, curr_month = 0, curr_day = 0;

    tab_date = LLDate::now();
    tab_date.split(&curr_year, &curr_month, &curr_day);
    tab_date.fromYMDHMS(curr_year, curr_month, curr_day); // Set hour, min, and sec to 0
    tab_date.secondsSinceEpoch(tab_date.secondsSinceEpoch() + seconds_in_day);

    tab_idx = -1;

    while (tab_idx < tabs_cnt - 1 && item_date < tab_date)
    {
        tab_idx++;

        if (tab_idx <= tabs_cnt - 4)
        {
            // All tabs, except last three, are tabs for one day, so just push tab_date back by one day
            tab_date.secondsSinceEpoch(tab_date.secondsSinceEpoch() - seconds_in_day);
        }
        else if (tab_idx == tabs_cnt - 3) // 6 day and older, low boundary is 1 month
        {
            tab_date =  LLDate::now();
            tab_date.split(&curr_year, &curr_month, &curr_day);
            curr_month--;
            if (0 == curr_month)
            {
                curr_month = 12;
                curr_year--;
            }
            tab_date.fromYMDHMS(curr_year, curr_month, curr_day);
        }
        else if (tab_idx == tabs_cnt - 2) // 1 month and older, low boundary is 6 months
        {
            tab_date =  LLDate::now();
            tab_date.split(&curr_year, &curr_month, &curr_day);
            if (curr_month > 6)
            {
                curr_month -= 6;
            }
            else
            {
                curr_month += 6;
                curr_year--;
            }
            tab_date.fromYMDHMS(curr_year, curr_month, curr_day);
        }
        else // 6 months and older
        {
            tab_date.secondsSinceEpoch(0);
        }
    }
}

// Called to add items, no more, than ADD_LIMIT at time
void LLTeleportHistoryPanel::refresh()
{
    if (!mHistoryAccordion)
    {
        mDirty = false;
        return;
    }

    const LLTeleportHistoryStorage::slurl_list_t& items = mTeleportHistory->getItems();

    // Setting tab_boundary_date to "now", so date from any item would be earlier, than boundary.
    // That leads to call to getNextTab to get right tab_idx in first pass
    LLDate tab_boundary_date =  LLDate::now();

    LLFlatListView* curr_flat_view = NULL;
    std::string filter_string = sFilterSubString;
    LLStringUtil::toUpper(filter_string);

    U32 added_items = 0;
    while (mCurrentItem >= 0)
    {
        // Filtering
        if (!filter_string.empty())
        {
            std::string landmark_title(items[mCurrentItem].mTitle);
            LLStringUtil::toUpper(landmark_title);
            if( std::string::npos == landmark_title.find(filter_string) )
            {
                mCurrentItem--;
                continue;
            }
        }

        // Checking whether date of item is earlier, than tab_boundary_date.
        // In that case, item should be added to another tab
        const LLDate &date = items[mCurrentItem].mDate;

        if (date < tab_boundary_date)
        {
            // Getting apropriate tab_idx for this and subsequent items,
            // tab_boundary_date would be earliest possible date for this tab
            S32 tab_idx = 0;
            getNextTab(date, tab_idx, tab_boundary_date);
            tab_idx = static_cast<S32>(mItemContainers.size()) - 1 - tab_idx;
            if (tab_idx >= 0)
            {
                LLAccordionCtrlTab* tab = mItemContainers.at(tab_idx);
                tab->setVisible(true);

                // Expand all accordion tabs when filtering
                if(!sFilterSubString.empty())
                {
                    //store accordion tab state when filter is not empty
                    tab->notifyChildren(LLSD().with("action","store_state"));

                    tab->setDisplayChildren(true);
                }
                // Restore each tab's expand state when not filtering
                else
                {
                    bool collapsed = isAccordionCollapsedByUser(tab);
                    tab->setDisplayChildren(!collapsed);

                    //restore accordion state after all those accodrion tabmanipulations
                    tab->notifyChildren(LLSD().with("action","restore_state"));
                }

                curr_flat_view = getFlatListViewFromTab(tab);
            }
        }

        if (curr_flat_view)
        {
            LLTeleportHistoryFlatItem* item =
                LLTeleportHistoryFlatItemStorage::instance()
                .getFlatItemForPersistentItem(mGearItemMenu,
                                              items[mCurrentItem],
                                              mCurrentItem,
                                              filter_string);
            if ( !curr_flat_view->addItem(item, LLUUID::null, ADD_BOTTOM, false) )
                LL_ERRS() << "Couldn't add flat item to teleport history." << LL_ENDL;
            if (mLastSelectedItemIndex == mCurrentItem)
                curr_flat_view->selectItem(item, true);
        }

        mCurrentItem--;

        if (++added_items >= ADD_LIMIT)
            break;
    }

    for (S32 n = static_cast<S32>(mItemContainers.size()) - 1; n >= 0; --n)
    {
        LLAccordionCtrlTab* tab = mItemContainers.at(n);
        LLFlatListView* fv = getFlatListViewFromTab(tab);
        if (fv)
        {
            fv->notify(LLSD().with("rearrange", LLSD()));
        }
    }

    mHistoryAccordion->setFilterSubString(sFilterSubString);

    mHistoryAccordion->arrange();

    updateVerbs();

    if (mCurrentItem < 0)
        mDirty = false;
}

void LLTeleportHistoryPanel::onTeleportHistoryChange(S32 removed_index)
{
    mLastSelectedItemIndex = -1;

    if (-1 == removed_index)
        showTeleportHistory(); // recreate all items
    else
    {
        replaceItem(removed_index); // replace removed item by most recent
        updateVerbs();
    }
}

void LLTeleportHistoryPanel::replaceItem(S32 removed_index)
{
    // Flat list for 'Today' (mItemContainers keeps accordion tabs in reverse order)
    LLFlatListView* fv = NULL;

    if (mItemContainers.size() > 0)
    {
        fv = getFlatListViewFromTab(mItemContainers[mItemContainers.size() - 1]);
    }

    // Empty flat list for 'Today' means that other flat lists are empty as well,
    // so all items from teleport history should be added.
    if (!fv || fv->size() == 0)
    {
        showTeleportHistory();
        return;
    }

    const LLTeleportHistoryStorage::slurl_list_t& history_items = mTeleportHistory->getItems();
    LLTeleportHistoryFlatItem* item = LLTeleportHistoryFlatItemStorage::instance()
        .getFlatItemForPersistentItem(mGearItemMenu,
                                      history_items[history_items.size() - 1], // Most recent item, it was added instead of removed
                                      static_cast<S32>(history_items.size()), // index will be decremented inside loop below
                                      sFilterSubString);

    fv->addItem(item, LLUUID::null, ADD_TOP);

    // Index of each item, from last to removed item should be decremented
    // to point to the right item in LLTeleportHistoryStorage
    for (S32 tab_idx = static_cast<S32>(mItemContainers.size()) - 1; tab_idx >= 0; --tab_idx)
    {
        LLAccordionCtrlTab* tab = mItemContainers.at(tab_idx);
        if (!tab->getVisible())
            continue;

        fv = getFlatListViewFromTab(tab);
        if (!fv)
        {
            showTeleportHistory();
            return;
        }

        std::vector<LLPanel*> items;
        fv->getItems(items);

        auto items_cnt = items.size();
        for (size_t n = 0; n < items_cnt; ++n)
        {
            LLTeleportHistoryFlatItem *item = (LLTeleportHistoryFlatItem*) items[n];

            if (item->getIndex() == removed_index)
            {
                LLTeleportHistoryFlatItemStorage::instance().removeItem(item);

                fv->removeItem(item);

                // If flat list becames empty, then accordion tab should be hidden
                if (fv->size() == 0)
                    tab->setVisible(false);

                mHistoryAccordion->arrange();

                return; // No need to decrement idexes for the rest of items
            }

            item->setIndex(item->getIndex() - 1);
        }
    }
}

void LLTeleportHistoryPanel::showTeleportHistory()
{
    mDirty = true;

    // Starting to add items from last one, in reverse order,
    // since TeleportHistory keeps most recent item at the end
    if (!mTeleportHistory)
    {
        mTeleportHistory = LLTeleportHistoryStorage::getInstance();
    }

    mCurrentItem = static_cast<S32>(mTeleportHistory->getItems().size()) - 1;

    for (S32 n = static_cast<S32>(mItemContainers.size()) - 1; n >= 0; --n)
    {
        LLAccordionCtrlTab* tab = mItemContainers.at(n);
        if (tab)
        {
            tab->setVisible(false);

            LLFlatListView* fv = getFlatListViewFromTab(tab);
            if (fv)
            {
                // Detached panels are managed by LLTeleportHistoryFlatItemStorage
                std::vector<LLPanel*> detached_items;
                fv->detachItems(detached_items);
            }
        }
    }
}

void LLTeleportHistoryPanel::handleItemSelect(LLFlatListView* selected)
{
    mLastSelectedFlatlList = selected;
    LLTeleportHistoryFlatItem* item = dynamic_cast<LLTeleportHistoryFlatItem *> (mLastSelectedFlatlList->getSelectedItem());
    if (item)
        mLastSelectedItemIndex = item->getIndex();

    auto tabs_cnt = mItemContainers.size();

    for (size_t n = 0; n < tabs_cnt; n++)
    {
        LLAccordionCtrlTab* tab = mItemContainers.at(n);

        if (!tab->getVisible())
            continue;

        LLFlatListView *flv = getFlatListViewFromTab(tab);
        if (!flv)
            continue;

        if (flv == selected)
            continue;

        flv->resetSelection(true);
    }

    updateVerbs();
}

void LLTeleportHistoryPanel::onReturnKeyPressed()
{
    // Teleport to selected region as default action on return key pressed
    onTeleport();
}

void LLTeleportHistoryPanel::onDoubleClickItem()
{
    // If item got doubleclick, then that item is already selected
    onTeleport();
}

void LLTeleportHistoryPanel::onAccordionTabRightClick(LLView *view, S32 x, S32 y, MASK mask)
{
    LLAccordionCtrlTab *tab = (LLAccordionCtrlTab *) view;

    // If click occurred below the header, don't show this menu
    if (y < tab->getRect().getHeight() - tab->getHeaderHeight() - tab->getPaddingBottom())
        return;

    if (mAccordionTabMenu)
    {
        //preventing parent (menu holder) from deleting already "dead" context menus on exit
        LLView* parent = mAccordionTabMenu->getParent();
        if (parent)
        {
            parent->removeChild(mAccordionTabMenu);
        }
        delete mAccordionTabMenu;
    }

    // set up the callbacks for all of the avatar menu items
    // (N.B. callbacks don't take const refs as mID is local scope)
    LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar;

    registrar.add("TeleportHistory.TabOpen",    boost::bind(&LLTeleportHistoryPanel::onAccordionTabOpen, this, tab));
    registrar.add("TeleportHistory.TabClose",   boost::bind(&LLTeleportHistoryPanel::onAccordionTabClose, this, tab));

    // create the context menu from the XUI
    llassert(LLMenuGL::sMenuContainer != NULL);
    mAccordionTabMenu = LLUICtrlFactory::getInstance()->createFromFile<LLContextMenu>(
        "menu_teleport_history_tab.xml", LLMenuGL::sMenuContainer, LLViewerMenuHolderGL::child_registry_t::instance());

    mAccordionTabMenu->setItemVisible("TabOpen", !tab->isExpanded());
    mAccordionTabMenu->setItemVisible("TabClose", tab->isExpanded());

    mAccordionTabMenu->show(x, y);
    LLMenuGL::showPopup(tab, mAccordionTabMenu, x, y);
}

void LLTeleportHistoryPanel::onAccordionTabOpen(LLAccordionCtrlTab *tab)
{
    tab->setDisplayChildren(true);
    mHistoryAccordion->arrange();
}

void LLTeleportHistoryPanel::onAccordionTabClose(LLAccordionCtrlTab *tab)
{
    tab->setDisplayChildren(false);
    mHistoryAccordion->arrange();
}

bool LLTeleportHistoryPanel::onClearTeleportHistoryDialog(const LLSD& notification, const LLSD& response)
{

    S32 option = LLNotificationsUtil::getSelectedOption(notification, response);

    if (0 == option)
    {
        // order does matter, call this first or teleport history will contain one record(current location)
        LLTeleportHistory::getInstance()->purgeItems();

        LLTeleportHistoryStorage *th = LLTeleportHistoryStorage::getInstance();
        th->purgeItems();
        th->save();
    }

    return false;
}

LLFlatListView* LLTeleportHistoryPanel::getFlatListViewFromTab(LLAccordionCtrlTab *tab)
{
    for (child_list_const_iter_t iter = tab->beginChild(); iter != tab->endChild(); iter++)
    {
        if (dynamic_cast<LLFlatListView*>(*iter))
        {
            return (LLFlatListView*)*iter; // There should be one scroll list per tab.
        }
    }

    return NULL;
}

void LLTeleportHistoryPanel::gotSLURLCallback(const std::string& slurl)
{
    LLClipboard::instance().copyToClipboard(utf8str_to_wstring(slurl), 0, static_cast<S32>(slurl.size()));

    LLSD args;
    args["SLURL"] = slurl;

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

void LLTeleportHistoryPanel::onGearMenuAction(const LLSD& userdata)
{
    std::string command_name = userdata.asString();

    if ("expand_all" == command_name)
    {
        auto tabs_cnt = mItemContainers.size();

        for (size_t n = 0; n < tabs_cnt; n++)
        {
            mItemContainers.at(n)->setDisplayChildren(true);
        }
        mHistoryAccordion->arrange();
    }
    else if ("collapse_all" == command_name)
    {
        auto tabs_cnt = mItemContainers.size();

        for (size_t n = 0; n < tabs_cnt; n++)
        {
            mItemContainers.at(n)->setDisplayChildren(false);
        }
        mHistoryAccordion->arrange();

        if (mLastSelectedFlatlList)
        {
            mLastSelectedFlatlList->resetSelection();
        }
    }

    S32 index = -1;
    if (mLastSelectedFlatlList)
    {
        LLTeleportHistoryFlatItem* itemp = dynamic_cast<LLTeleportHistoryFlatItem *> (mLastSelectedFlatlList->getSelectedItem());
        if (itemp)
        {
            index = itemp->getIndex();
        }
    }

    if ("teleport" == command_name)
    {
        confirmTeleport(index);
    }
    else if ("view" == command_name)
    {
        LLTeleportHistoryFlatItem::showPlaceInfoPanel(index);
    }
    else if ("show_on_map" == command_name)
    {
        LLTeleportHistoryStorage::getInstance()->showItemOnMap(index);
    }
    else if ("copy_slurl" == command_name)
    {
        LLVector3d globalPos = LLTeleportHistoryStorage::getInstance()->getItems()[index].mGlobalPos;
        LLLandmarkActions::getSLURLfromPosGlobal(globalPos,
            boost::bind(&LLTeleportHistoryPanel::gotSLURLCallback, _1));
    }
    else if ("remove" == command_name)
    {
        LLTeleportHistoryStorage::getInstance()->removeItem(index);
        LLTeleportHistoryStorage::getInstance()->save();
        showTeleportHistory();
    }
}

bool LLTeleportHistoryPanel::isActionEnabled(const LLSD& userdata) const
{
    std::string command_name = userdata.asString();

    if (command_name == "collapse_all"
        || command_name == "expand_all")
    {
        auto tabs_cnt = mItemContainers.size();

        bool has_expanded_tabs = false;
        bool has_collapsed_tabs = false;

        for (size_t n = 0; n < tabs_cnt; n++)
        {
            LLAccordionCtrlTab* tab = mItemContainers.at(n);
            if (!tab->getVisible())
                continue;

            if (tab->getDisplayChildren())
            {
                has_expanded_tabs = true;
            }
            else
            {
                has_collapsed_tabs = true;
            }

            if (has_expanded_tabs && has_collapsed_tabs)
            {
                break;
            }
        }

        if (command_name == "collapse_all")
        {
            return has_expanded_tabs;
        }

        if (command_name == "expand_all")
        {
            return has_collapsed_tabs;
        }
    }

    if (command_name == "clear_history")
    {
        return mTeleportHistory->getItems().size() > 0;
    }

    if ("teleport" == command_name
        || "view" == command_name
        || "show_on_map" == command_name
        || "copy_slurl" == command_name
        || "remove" == command_name)
    {
        if (!mLastSelectedFlatlList)
        {
            return false;
        }
        LLTeleportHistoryFlatItem* itemp = dynamic_cast<LLTeleportHistoryFlatItem *> (mLastSelectedFlatlList->getSelectedItem());
        return itemp != NULL;
    }

    return false;
}

void LLTeleportHistoryPanel::setAccordionCollapsedByUser(LLUICtrl* acc_tab, bool collapsed)
{
    LLSD param = acc_tab->getValue();
    param[COLLAPSED_BY_USER] = collapsed;
    acc_tab->setValue(param);
}

bool LLTeleportHistoryPanel::isAccordionCollapsedByUser(LLUICtrl* acc_tab)
{
    LLSD param = acc_tab->getValue();
    if(!param.has(COLLAPSED_BY_USER))
    {
        return false;
    }
    return param[COLLAPSED_BY_USER].asBoolean();
}

void LLTeleportHistoryPanel::onAccordionExpand(LLUICtrl* ctrl, const LLSD& param)
{
    bool expanded = param.asBoolean();
    // Save accordion tab state to restore it in refresh()
    setAccordionCollapsedByUser(ctrl, !expanded);

    // Reset selection upon accordion being collapsed
    // to disable "Teleport" and "Map" buttons for hidden item.
    if (!expanded && mLastSelectedFlatlList)
    {
        mLastSelectedFlatlList->resetSelection();
    }
}

// static
void LLTeleportHistoryPanel::confirmTeleport(S32 hist_idx)
{
    LLSD args;
    args["HISTORY_ENTRY"] = LLTeleportHistoryStorage::getInstance()->getItems()[hist_idx].mTitle;
    LLNotificationsUtil::add("TeleportToHistoryEntry", args, LLSD(),
        boost::bind(&LLTeleportHistoryPanel::onTeleportConfirmation, _1, _2, hist_idx));
}

// Called when user reacts upon teleport confirmation dialog.
// static
bool LLTeleportHistoryPanel::onTeleportConfirmation(const LLSD& notification, const LLSD& response, S32 hist_idx)
{
    S32 option = LLNotificationsUtil::getSelectedOption(notification, response);

    if (0 == option)
    {
        // Teleport to given history item.
        LLTeleportHistoryStorage::getInstance()->goToItem(hist_idx);
    }

    return false;
}