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/**
 * @file llfloatergroupinvite.cpp
 * @brief Floater to invite new members into a group.
 *
 * $LicenseInfo:firstyear=2006&license=viewerlgpl$
 * 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 "llfloatergroupinvite.h"
#include "llpanelgroupinvite.h"
#include "lltrans.h"
#include "lldraghandle.h"
#include "llagent.h"
#include "llgroupmgr.h"

class LLFloaterGroupInvite::impl
{
public:
    impl(const LLUUID& group_id);
    ~impl();

    static void closeFloater(void* data);

public:
    LLUUID mGroupID;
    LLPanelGroupInvite* mInvitePanelp;

    static std::map<LLUUID, LLFloaterGroupInvite*> sInstances;
};

//
// Globals
//
std::map<LLUUID, LLFloaterGroupInvite*> LLFloaterGroupInvite::impl::sInstances;

LLFloaterGroupInvite::impl::impl(const LLUUID& group_id) :
    mGroupID(group_id),
    mInvitePanelp(NULL)
{
}

LLFloaterGroupInvite::impl::~impl()
{
}

//static
void LLFloaterGroupInvite::impl::closeFloater(void* data)
{
    LLFloaterGroupInvite* floaterp = (LLFloaterGroupInvite*) data;

    if ( floaterp ) floaterp->closeFloater();
}

//-----------------------------------------------------------------------------
// Implementation
//-----------------------------------------------------------------------------
LLFloaterGroupInvite::LLFloaterGroupInvite(const LLUUID& group_id)
:   LLFloater(group_id)
{
    S32 floater_header_size = getHeaderHeight();
    LLRect contents;

    mImpl = new impl(group_id);

    mImpl->mInvitePanelp = new LLPanelGroupInvite(group_id);

    contents = mImpl->mInvitePanelp->getRect();
    contents.mTop -= floater_header_size;

    setTitle (mImpl->mInvitePanelp->getString("GroupInvitation"));

    mImpl->mInvitePanelp->setCloseCallback(impl::closeFloater, this);

    mImpl->mInvitePanelp->setRect(contents);
    addChild(mImpl->mInvitePanelp);
}

// virtual
LLFloaterGroupInvite::~LLFloaterGroupInvite()
{
    if (mImpl->mGroupID.notNull())
    {
        impl::sInstances.erase(mImpl->mGroupID);
    }

    delete mImpl->mInvitePanelp;
    delete mImpl;
}

// static
void LLFloaterGroupInvite::showForGroup(const LLUUID& group_id, uuid_vec_t *agent_ids, bool request_update)
{
    const LLFloater::Params& floater_params = LLFloater::getDefaultParams();
    S32 floater_header_size = floater_params.header_height;
    LLRect contents;

    // Make sure group_id isn't null
    if (group_id.isNull())
    {
        LL_WARNS() << "LLFloaterGroupInvite::showForGroup with null group_id!" << LL_ENDL;
        return;
    }

    // If we don't have a floater for this group, create one.
    LLFloaterGroupInvite *fgi = get_if_there(impl::sInstances,
                                             group_id,
                                             (LLFloaterGroupInvite*)NULL);

    if (request_update)
    {
        // refresh group information
        gAgent.sendAgentDataUpdateRequest();
        LLGroupMgr::getInstance()->clearGroupData(group_id);
    }


    if (!fgi)
    {
        fgi = new LLFloaterGroupInvite(group_id);
        contents = fgi->mImpl->mInvitePanelp->getRect();
        contents.mTop += floater_header_size;
        fgi->setRect(contents);
        fgi->getDragHandle()->setRect(contents);
        fgi->getDragHandle()->setTitle(fgi->mImpl->mInvitePanelp->getString("GroupInvitation"));

        impl::sInstances[group_id] = fgi;

        fgi->mImpl->mInvitePanelp->clear();
    }

    if (agent_ids != NULL)
    {
        fgi->mImpl->mInvitePanelp->addUsers(*agent_ids);
    }

    fgi->center();
    fgi->openFloater();
    fgi->mImpl->mInvitePanelp->update();
}