/**
 * @file lltransientfloatermgr.cpp
 * @brief LLFocusMgr base class
 *
 * $LicenseInfo:firstyear=2002&license=viewerlgpl$
 * 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 "lltransientfloatermgr.h"
#include "llfocusmgr.h"
#include "llrootview.h"
#include "llviewerwindow.h"
#include "lldockablefloater.h"
#include "llmenugl.h"


LLTransientFloaterMgr::LLTransientFloaterMgr()
{
    if(gViewerWindow)
    {
        gViewerWindow->getRootView()->getChild<LLUICtrl>("popup_holder")->setMouseDownCallback(boost::bind(
            &LLTransientFloaterMgr::leftMouseClickCallback, this, _2, _3, _4));
    }

    mGroupControls.insert(std::pair<ETransientGroup, controls_set_t >(GLOBAL, controls_set_t()));
    mGroupControls.insert(std::pair<ETransientGroup, controls_set_t >(DOCKED, controls_set_t()));
    mGroupControls.insert(std::pair<ETransientGroup, controls_set_t >(IM, controls_set_t()));
}

void LLTransientFloaterMgr::registerTransientFloater(LLTransientFloater* floater)
{
    mTransSet.insert(floater);
}

void LLTransientFloaterMgr::unregisterTransientFloater(LLTransientFloater* floater)
{
    mTransSet.erase(floater);
}

void LLTransientFloaterMgr::addControlView(ETransientGroup group, LLView* view)
{
    if (!view) return;

    mGroupControls.find(group)->second.insert(view->getHandle());
}

void LLTransientFloaterMgr::removeControlView(ETransientGroup group, LLView* view)
{
    if (!view) return;

    mGroupControls.find(group)->second.erase(view->getHandle());
}

void LLTransientFloaterMgr::addControlView(LLView* view)
{
    addControlView(GLOBAL, view);
}

void LLTransientFloaterMgr::removeControlView(LLView* view)
{
    // we will still get focus lost callbacks on this view, but that's ok
    // since we run sanity checking logic every time
    removeControlView(GLOBAL, view);
}

void LLTransientFloaterMgr::hideTransientFloaters(S32 x, S32 y)
{
    for (std::set<LLTransientFloater*>::iterator it = mTransSet.begin(); it
            != mTransSet.end(); it++)
    {
        LLTransientFloater* floater = *it;
        if (floater->isTransientDocked())
        {
            ETransientGroup group = floater->getGroup();

            bool hide = isControlClicked(group, mGroupControls.find(group)->second, x, y);
            if (hide)
            {
                floater->setTransientVisible(false);
            }
        }
    }
}

bool LLTransientFloaterMgr::isControlClicked(ETransientGroup group, controls_set_t& set, S32 x, S32 y)
{
    std::list< LLHandle<LLView> > dead_handles;

    bool res = true;
    for (controls_set_t::iterator it = set.begin(); it
            != set.end(); it++)
    {
        LLView* control_view = NULL;

        LLHandle<LLView> handle = *it;
        if (handle.isDead())
        {
            dead_handles.push_back(handle);
            continue;
        }

        control_view = handle.get();

        if (!control_view->getVisible())
        {
            continue;
        }

        LLRect rect = control_view->calcScreenRect();
        // if click inside view rect
        if (rect.pointInRect(x, y))
        {
            res = false;
            break;
        }
    }

    for (std::list< LLHandle<LLView> >::iterator it = dead_handles.begin(); it != dead_handles.end(); ++it)
    {
        LLHandle<LLView> handle = *it;
        mGroupControls.find(group)->second.erase(handle);
    }

    return res;
}

void LLTransientFloaterMgr::leftMouseClickCallback(S32 x, S32 y,
        MASK mask)
{
    // don't hide transient floater if any context menu opened
    if (LLMenuGL::sMenuContainer->getVisibleMenu() != NULL)
    {
        return;
    }

    bool hide = isControlClicked(DOCKED, mGroupControls.find(DOCKED)->second, x, y)
            && isControlClicked(GLOBAL, mGroupControls.find(GLOBAL)->second, x, y);
    if (hide)
    {
        hideTransientFloaters(x, y);
    }
}

void LLTransientFloater::init(LLFloater* thiz)
{
    // used since LLTransientFloater(this) can't be used in descendant constructor parameter initialization.
    mFloater = thiz;
}