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/** 
 * @file llimhandler.cpp
 * @brief Notification Handler Class for IM notifications
 *
 * $LicenseInfo:firstyear=2000&license=viewerlgpl$
 * 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 "llagentdata.h"
#include "llnotifications.h"
#include "lltoastimpanel.h"
#include "llviewerwindow.h"

using namespace LLNotificationsUI;

extern void process_dnd_im(const LLSD& notification);

//--------------------------------------------------------------------------
LLIMHandler::LLIMHandler()
:	LLCommunicationNotificationHandler("IM Notifications", "notifytoast")
{
	// Getting a Channel for our notifications
	mChannel = LLChannelManager::getInstance()->createNotificationChannel()->getHandle();
}

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

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

//--------------------------------------------------------------------------
bool LLIMHandler::processNotification(const LLNotificationPtr& notification)
{
    if(notification->isDND())
    {
        LLSD data = notification->asLLSD(); //don't need this if retrieve needed data from notification getters
        process_dnd_im(data);
    }
    else
    {
	    if(mChannel.isDead())
	    {
		    return false;
	    }

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

	    LLSD substitutions = notification->getSubstitutions();

	    // According to comments in LLIMMgr::addMessage(), if we get message
	    // from ourselves, the sender id is set to null. This fixes EXT-875.
	    LLUUID avatar_id = substitutions["FROM_ID"].asUUID();
	    if (avatar_id.isNull())
		    avatar_id = gAgentID;

	    LLToastIMPanel::Params im_p;
	    im_p.notification = notification;
	    im_p.avatar_id = avatar_id;
	    im_p.from = substitutions["FROM"].asString();
	    im_p.time = substitutions["TIME"].asString();
	    im_p.message = substitutions["MESSAGE"].asString();
	    im_p.session_id = substitutions["SESSION_ID"].asUUID();

	    LLToastIMPanel* im_box = new LLToastIMPanel(im_p);

	    LLToast::Params p;
	    p.notif_id = notification->getID();
	    p.session_id = im_p.session_id;
	    p.notification = notification;
	    p.panel = im_box;
	    p.can_be_stored = false;
	    LLScreenChannel* channel = dynamic_cast<LLScreenChannel*>(mChannel.get());
	    if(channel)
		    channel->addToast(p);
    }

	return false;
}