/**
* @file llchicletbar.h
* @brief LLChicletBar class header file
*
* $LicenseInfo:firstyear=2011&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2011, 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
* $/LicenseInfo$
*/

#ifndef LL_LLCHICLETBAR_H
#define LL_LLCHICLETBAR_H

#include "llpanel.h"

class LLChicletPanel;
class LLIMChiclet;
class LLLayoutPanel;
class LLLayoutStack;

class LLChicletBar
    : public LLSingleton<LLChicletBar>
    , public LLPanel
{
    LLSINGLETON(LLChicletBar);
    LOG_CLASS(LLChicletBar);

public:

    bool postBuild() override;

    LLChicletPanel* getChicletPanel() { return mChicletPanel; }

    void reshape(S32 width, S32 height, bool called_from_parent) override;


    /**
     * Shows/hides panel with specified well button (IM or Notification)
     *
     * @param well_name - name of the well panel to be processed.
     * @param visible - a flag specifying whether a button should be shown or hidden.
     */
    void showWellButton(const std::string& well_name, bool visible);

private:
    /**
     * Updates child controls size and visibility when it is necessary to reduce total width.
     *
     * @param delta_width - value by which chiclet bar should be shrunk. It is a negative value.
     * @returns positive value which chiclet bar can not process when it reaches its minimal width.
     *      Zero if there was enough space to process delta_width.
     */
    S32 processWidthDecreased(S32 delta_width);

    /** helper function to log debug messages */
    void log(LLView* panel, const std::string& descr);

    /**
     * @return difference between current chiclet panel width and the minimum.
     */
    S32 getChicletPanelShrinkHeadroom() const;

    /**
     * function adjusts Chiclet bar width to prevent overlapping with Mini-Location bar
     * EXP-1463
     */
    void fitWithTopInfoBar();

protected:
    LLChicletPanel*     mChicletPanel;
    LLLayoutStack*      mToolbarStack;
};

#endif // LL_LLCHICLETBAR_H