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/**
 * @file llnotificationofferhandler.cpp
 * @brief Notification Handler Class for Simple Notifications and Notification Tips
 *
 * $LicenseInfo:firstyear=2000&license=viewerlgpl$
 * 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" // must be first include

#include "llnotificationhandler.h"
#include "lltoastnotifypanel.h"
#include "llviewercontrol.h"
#include "llviewerwindow.h"
#include "llnotificationmanager.h"
#include "llnotifications.h"
#include "llscriptfloater.h"
#include "llimview.h"
#include "llnotificationsutil.h"

#include <boost/regex.hpp>

using namespace LLNotificationsUI;

//--------------------------------------------------------------------------
LLOfferHandler::LLOfferHandler()
:   LLCommunicationNotificationHandler("Offer", "offer")
{
    // Getting a Channel for our notifications
    LLScreenChannel* channel = LLChannelManager::getInstance()->createNotificationChannel();
    if(channel)
    {
        channel->setControlHovering(true);
        mChannel = channel->getHandle();
    }
}

//--------------------------------------------------------------------------
LLOfferHandler::~LLOfferHandler()
{
}

//--------------------------------------------------------------------------
void LLOfferHandler::initChannel()
{
    S32 channel_right_bound = gViewerWindow->getWorldViewRectScaled().mRight - gSavedSettings.getS32("NotificationChannelRightMargin");
    mChannel.get()->init(channel_right_bound - NOTIFY_BOX_WIDTH, channel_right_bound);
}

//--------------------------------------------------------------------------
bool LLOfferHandler::processNotification(const LLNotificationPtr& notification, bool should_log)
{
    if(mChannel.isDead())
    {
        return false;
    }

    // arrange a channel on a screen
    if(!mChannel.get()->getVisible())
    {
        initChannel();
    }


    if( notification->getPayload().has("give_inventory_notification")
        && notification->getPayload()["give_inventory_notification"].asBoolean() == false)
    {
        // This is an original inventory offer, so add a script floater
        LLScriptFloaterManager::instance().onAddNotification(notification->getID());
    }
    else
    {
        bool add_notif_to_im = notification->canLogToIM() && notification->hasFormElements();

        if (add_notif_to_im)
        {
            const std::string name = LLHandlerUtil::getSubstitutionName(notification);

            LLUUID from_id = notification->getPayload()["from_id"];

            if (!notification->isDND())
            {
                //Will not play a notification sound for inventory and teleport offer based upon chat preference
                bool playSound = (notification->getName() == "UserGiveItem"
                                  && gSavedSettings.getBOOL("PlaySoundInventoryOffer"))
                                 || ((notification->getName() == "TeleportOffered"
                                     || notification->getName() == "TeleportOffered_MaturityExceeded"
                                     || notification->getName() == "TeleportOffered_MaturityBlocked")
                                    && gSavedSettings.getBOOL("PlaySoundTeleportOffer"));

                if (playSound)
                {
                    notification->playSound();
                }
            }

            LLHandlerUtil::spawnIMSession(name, from_id);
            LLHandlerUtil::addNotifPanelToIM(notification);

        }

        if (!notification->canShowToast())
        {
            LLNotificationsUtil::cancel(notification);
        }
        else if(!notification->canLogToIM() || !LLHandlerUtil::isIMFloaterOpened(notification))
        {
            LLToastNotifyPanel* notify_box = new LLToastNotifyPanel(notification);
            LLToast::Params p;
            p.notif_id = notification->getID();
            p.notification = notification;
            p.panel = notify_box;
            // we not save offer notifications to the syswell floater that should be added to the IM floater
            p.can_be_stored = !add_notif_to_im;
            p.force_show = notification->getOfferFromAgent();
            p.can_fade = notification->canFadeToast();

            LLScreenChannel* channel = dynamic_cast<LLScreenChannel*>(mChannel.get());
            if(channel)
                channel->addToast(p);

        }

        if (notification->canLogToIM())
        {
            // log only to file if notif panel can be embedded to IM and IM is opened
            bool file_only = add_notif_to_im && LLHandlerUtil::isIMFloaterOpened(notification);
            if ((notification->getName() == "TeleportOffered"
                || notification->getName() == "TeleportOffered_MaturityExceeded"
                || notification->getName() == "TeleportOffered_MaturityBlocked"))
            {
                boost::regex r("<icon\\s*>\\s*([^<]*)?\\s*</icon\\s*>( - )?",
                    boost::regex::perl|boost::regex::icase);
                std::string stripped_msg = boost::regex_replace(notification->getMessage(), r, "");
                LLHandlerUtil::logToIMP2P(notification->getPayload()["from_id"], stripped_msg,file_only);
            }
            else
            {
                LLHandlerUtil::logToIMP2P(notification, file_only);
            }
        }
    }

    return false;
}

/*virtual*/ void LLOfferHandler::onChange(LLNotificationPtr p)
{
    auto panelp = LLToastNotifyPanel::getInstance(p->getID());
    if (panelp)
    {
        //
        // HACK: if we're dealing with a notification embedded in IM, update it
        // otherwise remove its toast
        //
        if (dynamic_cast<LLIMToastNotifyPanel*>(panelp.get()))
        {
            panelp->updateNotification();
        }
        else
        {
            // if notification has changed, hide it
            mChannel.get()->removeToastByNotificationID(p->getID());
        }
    }
}


/*virtual*/ void LLOfferHandler::onDelete(LLNotificationPtr notification)
{
    if( notification->getPayload().has("give_inventory_notification")
        && !notification->getPayload()["give_inventory_notification"] )
    {
        // Remove original inventory offer script floater
        LLScriptFloaterManager::instance().onRemoveNotification(notification->getID());
    }
    else
    {
        if (notification->canLogToIM()
            && notification->hasFormElements()
            && !LLHandlerUtil::isIMFloaterOpened(notification))
        {
            LLHandlerUtil::decIMMesageCounter(notification);
        }
        mChannel.get()->removeToastByNotificationID(notification->getID());
    }
}