/** 
 * @file llchiclet.cpp
 * @brief LLChiclet class implementation
 *
 * $LicenseInfo:firstyear=2002&license=viewerlgpl$
 * 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" // must be first include
#include "llchiclet.h"

#include "llchicletbar.h"
#include "llfloaterimsession.h"
#include "llfloaterimcontainer.h"
#include "llfloaterreg.h"
#include "lllocalcliprect.h"
#include "llscriptfloater.h"
#include "llsingleton.h"
#include "llsyswellwindow.h"

static LLDefaultChildRegistry::Register<LLChicletPanel> t1("chiclet_panel");
static LLDefaultChildRegistry::Register<LLNotificationChiclet> t2("chiclet_notification");
static LLDefaultChildRegistry::Register<LLScriptChiclet> t6("chiclet_script");
static LLDefaultChildRegistry::Register<LLInvOfferChiclet> t7("chiclet_offer");

boost::signals2::signal<LLChiclet* (const LLUUID&),
		LLIMChiclet::CollectChicletCombiner<std::list<LLChiclet*> > >
		LLIMChiclet::sFindChicletsSignal;
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////

LLSysWellChiclet::Params::Params()
	: button("button")
	, unread_notifications("unread_notifications")
	, max_displayed_count("max_displayed_count", 99)
{
	button.name = "button";
	button.tab_stop = FALSE;
	button.label = LLStringUtil::null;
}

LLSysWellChiclet::LLSysWellChiclet(const Params& p)
	: LLChiclet(p)
	, mButton(NULL)
	, mCounter(0)
	, mMaxDisplayedCount(p.max_displayed_count)
	, mIsNewMessagesState(false)
	, mFlashToLitTimer(NULL)
	, mContextMenu(NULL)
{
	LLButton::Params button_params = p.button;
	mButton = LLUICtrlFactory::create<LLButton>(button_params);
	addChild(mButton);

	mFlashToLitTimer = new LLFlashTimer(boost::bind(&LLSysWellChiclet::changeLitState, this, _1));
}

LLSysWellChiclet::~LLSysWellChiclet()
{
	delete mFlashToLitTimer;
}

void LLSysWellChiclet::setCounter(S32 counter)
{
	// do nothing if the same counter is coming. EXT-3678.
	if (counter == mCounter) return;

	// note same code in LLChicletNotificationCounterCtrl::setCounter(S32 counter)
	std::string s_count;
	if(counter != 0)
	{
		static std::string more_messages_exist("+");
		std::string more_messages(counter > mMaxDisplayedCount ? more_messages_exist : "");
		s_count = llformat("%d%s"
			, llmin(counter, mMaxDisplayedCount)
			, more_messages.c_str()
			);
	}

	mButton->setLabel(s_count);

	mCounter = counter;
}

boost::signals2::connection LLSysWellChiclet::setClickCallback(
	const commit_callback_t& cb)
{
	return mButton->setClickedCallback(cb);
}

void LLSysWellChiclet::setToggleState(BOOL toggled) {
	mButton->setToggleState(toggled);
}

void LLSysWellChiclet::changeLitState(bool blink)
{
	setNewMessagesState(!mIsNewMessagesState);
}

void LLSysWellChiclet::setNewMessagesState(bool new_messages)
{
	/*
	Emulate 4 states of button by background images, see detains in EXT-3147
	xml attribute           Description
	image_unselected        "Unlit" - there are no new messages
	image_selected          "Unlit" + "Selected" - there are no new messages and the Well is open
	image_pressed           "Lit" - there are new messages
	image_pressed_selected  "Lit" + "Selected" - there are new messages and the Well is open
	*/
	mButton->setForcePressedState(new_messages);

	mIsNewMessagesState = new_messages;
}

void LLSysWellChiclet::updateWidget(bool is_window_empty)
{
	mButton->setEnabled(!is_window_empty);

	if (LLChicletBar::instanceExists())
	{
		LLChicletBar::getInstance()->showWellButton(getName(), !is_window_empty);
	}
}
// virtual
BOOL LLSysWellChiclet::handleRightMouseDown(S32 x, S32 y, MASK mask)
{
	if(!mContextMenu)
	{
		createMenu();
	}
	if (mContextMenu)
	{
		mContextMenu->show(x, y);
		LLMenuGL::showPopup(this, mContextMenu, x, y);
	}
	return TRUE;
}

/************************************************************************/
/*               LLNotificationChiclet implementation                   */
/************************************************************************/
LLNotificationChiclet::LLNotificationChiclet(const Params& p)
:	LLSysWellChiclet(p),
	mUreadSystemNotifications(0)
{
	mNotificationChannel.reset(new ChicletNotificationChannel(this));
	// ensure that notification well window exists, to synchronously
	// handle toast add/delete events.
	LLNotificationWellWindow::getInstance()->setSysWellChiclet(this);
}

void LLNotificationChiclet::onMenuItemClicked(const LLSD& user_data)
{
	std::string action = user_data.asString();
	if("close all" == action)
	{
		LLNotificationWellWindow::getInstance()->closeAll();
	}
}

bool LLNotificationChiclet::enableMenuItem(const LLSD& user_data)
{
	std::string item = user_data.asString();
	if (item == "can close all")
	{
		return mUreadSystemNotifications != 0;
	}
	return true;
}

void LLNotificationChiclet::createMenu()
{
	if(mContextMenu)
	{
		llwarns << "Menu already exists" << llendl;
		return;
	}

	LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar;
	registrar.add("NotificationWellChicletMenu.Action",
		boost::bind(&LLNotificationChiclet::onMenuItemClicked, this, _2));

	LLUICtrl::EnableCallbackRegistry::ScopedRegistrar enable_registrar;
	enable_registrar.add("NotificationWellChicletMenu.EnableItem",
		boost::bind(&LLNotificationChiclet::enableMenuItem, this, _2));

	mContextMenu = LLUICtrlFactory::getInstance()->createFromFile<LLContextMenu>
		("menu_notification_well_button.xml",
		 LLMenuGL::sMenuContainer,
		 LLViewerMenuHolderGL::child_registry_t::instance());
}

/*virtual*/
void LLNotificationChiclet::setCounter(S32 counter)
{
	LLSysWellChiclet::setCounter(counter);
	updateWidget(getCounter() == 0);
	
}

bool LLNotificationChiclet::ChicletNotificationChannel::filterNotification( LLNotificationPtr notification )
{
	if (notification->getName() == "ScriptDialog")
	{
		return false;
	}

	if( !(notification->canLogToIM() && notification->hasFormElements())
		&& (!notification->getPayload().has("give_inventory_notification")
			|| notification->getPayload()["give_inventory_notification"]))
	{
		return true;
	}
	return false;
}

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////

LLChiclet::Params::Params()
 : show_counter("show_counter", true)
 , enable_counter("enable_counter", false)
{
}

LLChiclet::LLChiclet(const Params& p)
: LLUICtrl(p)
, mSessionId(LLUUID::null)
, mShowCounter(p.show_counter)
{
}

boost::signals2::connection LLChiclet::setLeftButtonClickCallback(
	const commit_callback_t& cb)
{
	return setCommitCallback(cb);
}

BOOL LLChiclet::handleMouseDown(S32 x, S32 y, MASK mask)
{
	onCommit();
	childrenHandleMouseDown(x,y,mask);
	return TRUE;
}

boost::signals2::connection LLChiclet::setChicletSizeChangedCallback(
	const chiclet_size_changed_callback_t& cb)
{
	return mChicletSizeChangedSignal.connect(cb);
}

void LLChiclet::onChicletSizeChanged()
{
	mChicletSizeChangedSignal(this, getValue());
}

LLSD LLChiclet::getValue() const
{
	return LLSD(getSessionId());
}

void LLChiclet::setValue(const LLSD& value)
{
	if(value.isUUID())
	{
		setSessionId(value.asUUID());
	}
}

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////

LLIMChiclet::LLIMChiclet(const LLIMChiclet::Params& p)
: LLChiclet(p)
, mShowSpeaker(false)
, mDefaultWidth(p.rect().getWidth())
, mNewMessagesIcon(NULL)
, mChicletButton(NULL)
, mPopupMenu(NULL)
{
}

/* virtual*/
BOOL LLIMChiclet::postBuild()
{
	mChicletButton = getChild<LLButton>("chiclet_button");
	mChicletButton->setCommitCallback(boost::bind(&LLIMChiclet::onMouseDown, this));
	mChicletButton->setDoubleClickCallback(boost::bind(&LLIMChiclet::onMouseDown, this));
	return TRUE;
}

void LLIMChiclet::enableCounterControl(bool enable) 
{
	mCounterEnabled = enable;
	if(!enable)
	{
		LLChiclet::setShowCounter(false);
	}
}

void LLIMChiclet::setRequiredWidth()
{
	S32 required_width = mDefaultWidth;
	reshape(required_width, getRect().getHeight());
	onChicletSizeChanged();
}

void LLIMChiclet::setShowNewMessagesIcon(bool show)
{
	if(mNewMessagesIcon)
	{
		mNewMessagesIcon->setVisible(show);
	}
	setRequiredWidth();
}

bool LLIMChiclet::getShowNewMessagesIcon()
{
	return mNewMessagesIcon->getVisible();
}

void LLIMChiclet::onMouseDown()
{
	LLFloaterIMSession::toggle(getSessionId());
}

void LLIMChiclet::setToggleState(bool toggle)
{
	mChicletButton->setToggleState(toggle);
}

BOOL LLIMChiclet::handleRightMouseDown(S32 x, S32 y, MASK mask)
{
	if(!mPopupMenu)
	{
		createPopupMenu();
	}

	if (mPopupMenu)
	{
		updateMenuItems();
		mPopupMenu->arrangeAndClear();
		LLMenuGL::showPopup(this, mPopupMenu, x, y);
	}

	return TRUE;
}

bool LLIMChiclet::canCreateMenu()
{
	if(mPopupMenu)
	{
		llwarns << "Menu already exists" << llendl;
		return false;
	}
	if(getSessionId().isNull())
	{
		return false;
	}
	return true;
}

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////

LLChicletPanel::Params::Params()
: chiclet_padding("chiclet_padding")
, scrolling_offset("scrolling_offset")
, scroll_button_hpad("scroll_button_hpad")
, scroll_ratio("scroll_ratio")
, min_width("min_width")
{
};

LLChicletPanel::LLChicletPanel(const Params&p)
: LLPanel(p)
, mScrollArea(NULL)
, mLeftScrollButton(NULL)
, mRightScrollButton(NULL)
, mChicletPadding(p.chiclet_padding)
, mScrollingOffset(p.scrolling_offset)
, mScrollButtonHPad(p.scroll_button_hpad)
, mScrollRatio(p.scroll_ratio)
, mMinWidth(p.min_width)
, mShowControls(true)
{
	LLPanel::Params panel_params;
	panel_params.follows.flags(FOLLOWS_LEFT | FOLLOWS_RIGHT);
	mScrollArea = LLUICtrlFactory::create<LLPanel>(panel_params,this);

	// important for Show/Hide Camera and Move controls menu in bottom tray to work properly
	mScrollArea->setMouseOpaque(false);

	addChild(mScrollArea);
}

LLChicletPanel::~LLChicletPanel()
{
	if(LLTransientFloaterMgr::instanceExists())
	{
		LLTransientFloaterMgr::getInstance()->removeControlView(mLeftScrollButton);
		LLTransientFloaterMgr::getInstance()->removeControlView(mRightScrollButton);
	}
}

void LLChicletPanel::onMessageCountChanged(const LLSD& data)
{
	LLUUID session_id = data["session_id"].asUUID();
	S32 unread = data["participant_unread"].asInteger();

	LLFloaterIMSession* im_floater = LLFloaterIMSession::findInstance(session_id);
	if (im_floater && im_floater->getVisible() && im_floater->hasFocus())
	{
		unread = 0;
	}
}

void LLChicletPanel::objectChicletCallback(const LLSD& data)
{
	LLUUID notification_id = data["notification_id"];
	bool new_message = data["new_message"];

	std::list<LLChiclet*> chiclets = LLIMChiclet::sFindChicletsSignal(notification_id);
	std::list<LLChiclet *>::iterator iter;
	for (iter = chiclets.begin(); iter != chiclets.end(); iter++)
	{
		LLIMChiclet* chiclet = dynamic_cast<LLIMChiclet*>(*iter);
		if (chiclet != NULL)
		{
			chiclet->setShowNewMessagesIcon(new_message);
		}
	}
}

BOOL LLChicletPanel::postBuild()
{
	LLPanel::postBuild();
	LLIMModel::instance().addNewMsgCallback(boost::bind(&LLChicletPanel::onMessageCountChanged, this, _1));
	LLIMModel::instance().addNoUnreadMsgsCallback(boost::bind(&LLChicletPanel::onMessageCountChanged, this, _1));
	LLScriptFloaterManager::getInstance()->addNewObjectCallback(boost::bind(&LLChicletPanel::objectChicletCallback, this, _1));
	LLScriptFloaterManager::getInstance()->addToggleObjectFloaterCallback(boost::bind(&LLChicletPanel::objectChicletCallback, this, _1));
	LLIMChiclet::sFindChicletsSignal.connect(boost::bind(&LLChicletPanel::findChiclet<LLChiclet>, this, _1));
	LLVoiceChannel::setCurrentVoiceChannelChangedCallback(boost::bind(&LLChicletPanel::onCurrentVoiceChannelChanged, this, _1));

	mLeftScrollButton=getChild<LLButton>("chicklet_left_scroll_button");
	LLTransientFloaterMgr::getInstance()->addControlView(mLeftScrollButton);
	mLeftScrollButton->setMouseDownCallback(boost::bind(&LLChicletPanel::onLeftScrollClick,this));
	mLeftScrollButton->setHeldDownCallback(boost::bind(&LLChicletPanel::onLeftScrollHeldDown,this));
	mLeftScrollButton->setEnabled(false);

	mRightScrollButton=getChild<LLButton>("chicklet_right_scroll_button");
	LLTransientFloaterMgr::getInstance()->addControlView(mRightScrollButton);
	mRightScrollButton->setMouseDownCallback(boost::bind(&LLChicletPanel::onRightScrollClick,this));
	mRightScrollButton->setHeldDownCallback(boost::bind(&LLChicletPanel::onRightScrollHeldDown,this));
	mRightScrollButton->setEnabled(false);	

	return TRUE;
}

void LLChicletPanel::onCurrentVoiceChannelChanged(const LLUUID& session_id)
{
	static LLUUID s_previous_active_voice_session_id;

	std::list<LLChiclet*> chiclets = LLIMChiclet::sFindChicletsSignal(session_id);

	for(std::list<LLChiclet *>::iterator it = chiclets.begin(); it != chiclets.end(); ++it)
	{
		LLIMChiclet* chiclet = dynamic_cast<LLIMChiclet*>(*it);
		if(chiclet)
		{
			if (gSavedSettings.getBOOL("OpenIMOnVoice"))
			{
				LLFloaterIMContainer::getInstance()->showConversation(session_id);
			}
		}
	}

	s_previous_active_voice_session_id = session_id;
}

bool LLChicletPanel::addChiclet(LLChiclet* chiclet, S32 index)
{
	if(mScrollArea->addChild(chiclet))
	{
		// chiclets should be aligned to right edge of scroll panel
		S32 left_shift = 0;

		if (!canScrollLeft())
		{
			// init left shift for the first chiclet in the list...
			if (mChicletList.empty())
			{
				// ...start from the right border of the scroll area for the first added chiclet 
				left_shift = mScrollArea->getRect().getWidth();
			}
			else
			{
				// ... start from the left border of the first chiclet minus padding
				left_shift = getChiclet(0)->getRect().mLeft - getChicletPadding();
			}

			// take into account width of the being added chiclet
			left_shift -= chiclet->getRequiredRect().getWidth();

			// if we overflow the scroll area we do not need to shift chiclets
			if (left_shift < 0)
			{
				left_shift = 0;
			}
		}

		mChicletList.insert(mChicletList.begin() + index, chiclet);

		// shift first chiclet to place it in correct position. 
		// rest ones will be placed in arrange()
		if (!canScrollLeft())
		{
			getChiclet(0)->translate(left_shift - getChiclet(0)->getRect().mLeft, 0);
		}

		chiclet->setLeftButtonClickCallback(boost::bind(&LLChicletPanel::onChicletClick, this, _1, _2));
		chiclet->setChicletSizeChangedCallback(boost::bind(&LLChicletPanel::onChicletSizeChanged, this, _1, index));

		arrange();
		LLTransientFloaterMgr::getInstance()->addControlView(LLTransientFloaterMgr::IM, chiclet);

		return true;
	}

	return false;
}

void LLChicletPanel::onChicletSizeChanged(LLChiclet* ctrl, const LLSD& param)
{
	arrange();
}

void LLChicletPanel::onChicletClick(LLUICtrl*ctrl,const LLSD&param)
{
	if (mCommitSignal)
	{
		(*mCommitSignal)(ctrl,param);
	}
}

void LLChicletPanel::removeChiclet(chiclet_list_t::iterator it)
{
	LLChiclet* chiclet = *it;
	mScrollArea->removeChild(chiclet);
	mChicletList.erase(it);
	
	arrange();
	LLTransientFloaterMgr::getInstance()->removeControlView(LLTransientFloaterMgr::IM, chiclet);
	chiclet->die();
}

void LLChicletPanel::removeChiclet(S32 index)
{
	if(index >= 0 && index < getChicletCount())
	{
		removeChiclet(mChicletList.begin() + index);
	}
}

S32 LLChicletPanel::getChicletIndex(const LLChiclet* chiclet)
{
	if(mChicletList.empty())
		return -1;

	S32 size = getChicletCount();
	for(int n = 0; n < size; ++n)
	{
		if(chiclet == mChicletList[n])
			return n;
	}

	return -1;
}

void LLChicletPanel::removeChiclet(LLChiclet*chiclet)
{
	chiclet_list_t::iterator it = mChicletList.begin();
	for( ; mChicletList.end() != it; ++it)
	{
		LLChiclet* temp = *it;
		if(temp == chiclet)
		{
			removeChiclet(it);
			return;
		}
	}
}

void LLChicletPanel::removeChiclet(const LLUUID& im_session_id)
{
	chiclet_list_t::iterator it = mChicletList.begin();
	for( ; mChicletList.end() != it; ++it)
	{
		LLIMChiclet* chiclet = dynamic_cast<LLIMChiclet*>(*it);

		if(chiclet->getSessionId() == im_session_id)
		{
			removeChiclet(it);
			return;
		}
	}
}

void LLChicletPanel::removeAll()
{
	S32 size = getChicletCount();
	for(S32 n = 0; n < size; ++n)
	{
		mScrollArea->removeChild(mChicletList[n]);
	}

	mChicletList.erase(mChicletList.begin(), mChicletList.end());

	showScrollButtonsIfNeeded();
}

void LLChicletPanel::scrollToChiclet(const LLChiclet* chiclet)
{
	const LLRect& rect = chiclet->getRect();

	if (rect.mLeft < 0)
	{
		scroll(llabs(rect.mLeft));
		showScrollButtonsIfNeeded();
	}
	else
	{
		S32 scrollWidth = mScrollArea->getRect().getWidth();

		if (rect.mRight > scrollWidth)
		{
			scroll(-llabs(rect.mRight - scrollWidth));
			showScrollButtonsIfNeeded();
		}
	}
}

void LLChicletPanel::reshape(S32 width, S32 height, BOOL called_from_parent )
{
	LLPanel::reshape(width,height,called_from_parent);

	//Needed once- to avoid error at first call of reshape() before postBuild()
	if(!mLeftScrollButton||!mRightScrollButton)
		return;
	
	LLRect scroll_button_rect = mLeftScrollButton->getRect();
	mLeftScrollButton->setRect(LLRect(0,scroll_button_rect.mTop,scroll_button_rect.getWidth(),
		scroll_button_rect.mBottom));
	scroll_button_rect = mRightScrollButton->getRect();
	mRightScrollButton->setRect(LLRect(width - scroll_button_rect.getWidth(),scroll_button_rect.mTop,
		width, scroll_button_rect.mBottom));
	

	bool need_show_scroll = needShowScroll();
	if(need_show_scroll)
	{
		mScrollArea->setRect(LLRect(scroll_button_rect.getWidth() + mScrollButtonHPad,
			height, width - scroll_button_rect.getWidth() - mScrollButtonHPad, 0));
	}
	else
	{
		mScrollArea->setRect(LLRect(0,height, width, 0));
	}
	
	mShowControls = width >= mMinWidth;
	
	mScrollArea->setVisible(mShowControls);

	trimChiclets();
	showScrollButtonsIfNeeded();

}

S32	LLChicletPanel::notifyParent(const LLSD& info)
{
	if(info.has("notification"))
	{
		std::string str_notification = info["notification"];
		if(str_notification == "size_changes")
		{
			arrange();
			return 1;
		}
	}
	return LLPanel::notifyParent(info);
}

void LLChicletPanel::setChicletToggleState(const LLUUID& session_id, bool toggle)
{
	if(session_id.isNull())
	{
		llwarns << "Null Session ID" << llendl;
	}

	// toggle off all chiclets, except specified
	S32 size = getChicletCount();
	for(int n = 0; n < size; ++n)
	{
		LLIMChiclet* chiclet = getChiclet<LLIMChiclet>(n);
		if(chiclet && chiclet->getSessionId() != session_id)
		{
			chiclet->setToggleState(false);
		}
	}

	// toggle specified chiclet
	LLIMChiclet* chiclet = findChiclet<LLIMChiclet>(session_id);
	if(chiclet)
	{
		chiclet->setToggleState(toggle);
	}
}

void LLChicletPanel::arrange()
{
	if(mChicletList.empty())
		return;

	//initial arrange of chicklets positions
	S32 chiclet_left = getChiclet(0)->getRect().mLeft;
	S32 size = getChicletCount();
	for( int n = 0; n < size; ++n)
	{
		LLChiclet* chiclet = getChiclet(n);

		S32 chiclet_width = chiclet->getRequiredRect().getWidth();
		LLRect rect = chiclet->getRect();
		rect.set(chiclet_left, rect.mTop, chiclet_left + chiclet_width, rect.mBottom);

		chiclet->setRect(rect);

		chiclet_left += chiclet_width + getChicletPadding();
	}

	//reset size and pos on mScrollArea
	LLRect rect = getRect();
	LLRect scroll_button_rect = mLeftScrollButton->getRect();
	
	bool need_show_scroll = needShowScroll();
	if(need_show_scroll)
	{
		mScrollArea->setRect(LLRect(scroll_button_rect.getWidth() + mScrollButtonHPad,
			rect.getHeight(), rect.getWidth() - scroll_button_rect.getWidth() - mScrollButtonHPad, 0));
	}
	else
	{
		mScrollArea->setRect(LLRect(0,rect.getHeight(), rect.getWidth(), 0));
	}
	
	trimChiclets();
	showScrollButtonsIfNeeded();
}

void LLChicletPanel::trimChiclets()
{
	// trim right
	if(!mChicletList.empty())
	{
		S32 last_chiclet_right = (*mChicletList.rbegin())->getRect().mRight;
		S32 first_chiclet_left = getChiclet(0)->getRect().mLeft;
		S32 scroll_width = mScrollArea->getRect().getWidth();
		if(last_chiclet_right < scroll_width || first_chiclet_left > 0)
		{
			shiftChiclets(scroll_width - last_chiclet_right);
		}
	}
}

bool LLChicletPanel::needShowScroll()
{
	if(mChicletList.empty())
		return false;
	
	S32 chicklet_width  = (*mChicletList.rbegin())->getRect().mRight - (*mChicletList.begin())->getRect().mLeft;

	return chicklet_width>getRect().getWidth();
}


void LLChicletPanel::showScrollButtonsIfNeeded()
{
	bool can_scroll_left = canScrollLeft();
	bool can_scroll_right = canScrollRight();

	mLeftScrollButton->setEnabled(can_scroll_left);
	mRightScrollButton->setEnabled(can_scroll_right);

	bool show_scroll_buttons = (can_scroll_left || can_scroll_right) && mShowControls;

	mLeftScrollButton->setVisible(show_scroll_buttons);
	mRightScrollButton->setVisible(show_scroll_buttons);
}

void LLChicletPanel::draw()
{
	child_list_const_iter_t it = getChildList()->begin();
	for( ; getChildList()->end() != it; ++it)
	{
		LLView* child = *it;
		if(child == dynamic_cast<LLView*>(mScrollArea))
		{
			LLLocalClipRect clip(mScrollArea->getRect());
			drawChild(mScrollArea);
		}
		else
		{
			drawChild(child);
		}
	}
}

bool LLChicletPanel::canScrollRight()
{
	if(mChicletList.empty())
		return false;

	S32 scroll_width = mScrollArea->getRect().getWidth();
	S32 last_chiclet_right = (*mChicletList.rbegin())->getRect().mRight;

	if(last_chiclet_right > scroll_width)
		return true;

	return false;
}

bool LLChicletPanel::canScrollLeft()
{
	if(mChicletList.empty())
		return false;

	return getChiclet(0)->getRect().mLeft < 0;
}

void LLChicletPanel::scroll(S32 offset)
{
	shiftChiclets(offset);
}

void LLChicletPanel::shiftChiclets(S32 offset, S32 start_index /* = 0 */)
{
	if(start_index < 0 || start_index >= getChicletCount())
	{
		return;
	}

	chiclet_list_t::const_iterator it = mChicletList.begin() + start_index;
	for(;mChicletList.end() != it; ++it)
	{
		LLChiclet* chiclet = *it;
		chiclet->translate(offset,0);
	}
}

void LLChicletPanel::scrollLeft()
{
	if(canScrollLeft())
	{
		S32 offset = getScrollingOffset();
		LLRect first_chiclet_rect = getChiclet(0)->getRect();

		// shift chiclets in case first chiclet is partially visible
		if(first_chiclet_rect.mLeft < 0 && first_chiclet_rect.mRight > 0)
		{
			offset = llabs(first_chiclet_rect.mLeft);
		}

		scroll(offset);
		
		showScrollButtonsIfNeeded();
	}
}

void LLChicletPanel::scrollRight()
{
	if(canScrollRight())
	{
		S32 offset = - getScrollingOffset();

		S32 last_chiclet_right = (*mChicletList.rbegin())->getRect().mRight;
		S32 scroll_rect_width = mScrollArea->getRect().getWidth();
		// if after scrolling, the last chiclet will not be aligned to 
		// scroll area right side - align it.
		if( last_chiclet_right + offset < scroll_rect_width )
		{
			offset = scroll_rect_width - last_chiclet_right;
		}

		scroll(offset);
		
		showScrollButtonsIfNeeded();
	}
}

void LLChicletPanel::onLeftScrollClick()
{
	scrollLeft();
}

void LLChicletPanel::onRightScrollClick()
{
	scrollRight();
}

void LLChicletPanel::onLeftScrollHeldDown()
{
	S32 offset = mScrollingOffset;
	mScrollingOffset = mScrollingOffset / mScrollRatio;
	scrollLeft();
	mScrollingOffset = offset;
}

void LLChicletPanel::onRightScrollHeldDown()
{
	S32 offset = mScrollingOffset;
	mScrollingOffset = mScrollingOffset / mScrollRatio;
	scrollRight();
	mScrollingOffset = offset;
}

boost::signals2::connection LLChicletPanel::setChicletClickedCallback(
	const commit_callback_t& cb)
{
	return setCommitCallback(cb);
}

BOOL LLChicletPanel::handleScrollWheel(S32 x, S32 y, S32 clicks)
{
	if(clicks > 0)
	{
		scrollRight();
	}
	else
	{
		scrollLeft();
	}
	return TRUE;
}

bool LLChicletPanel::isAnyIMFloaterDoked()
{
	bool res = false;
	for (chiclet_list_t::iterator it = mChicletList.begin(); it
			!= mChicletList.end(); it++)
	{
		LLFloaterIMSession* im_floater = LLFloaterReg::findTypedInstance<LLFloaterIMSession>(
				"impanel", (*it)->getSessionId());
		if (im_floater != NULL && im_floater->getVisible()
				&& !im_floater->isMinimized() && im_floater->isDocked())
		{
			res = true;
			break;
		}
	}

	return res;
}

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
LLChicletNotificationCounterCtrl::Params::Params()
	: max_displayed_count("max_displayed_count", 99)
{
}

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
LLChicletAvatarIconCtrl::LLChicletAvatarIconCtrl(const Params& p)
 : LLAvatarIconCtrl(p)
{
}

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////

LLChicletInvOfferIconCtrl::LLChicletInvOfferIconCtrl(const Params& p)
: LLChicletAvatarIconCtrl(p)
 , mDefaultIcon(p.default_icon)
{
}

void LLChicletInvOfferIconCtrl::setValue(const LLSD& value )
{
	if(value.asUUID().isNull())
	{
		LLIconCtrl::setValue(mDefaultIcon);
	}
	else
	{
		LLChicletAvatarIconCtrl::setValue(value);
	}
}

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////

LLScriptChiclet::Params::Params()
 : icon("icon")
 , chiclet_button("chiclet_button")
 , new_message_icon("new_message_icon")
{
}

LLScriptChiclet::LLScriptChiclet(const Params&p)
 : LLIMChiclet(p)
 , mChicletIconCtrl(NULL)
{
	LLButton::Params button_params = p.chiclet_button;
	mChicletButton = LLUICtrlFactory::create<LLButton>(button_params);
	addChild(mChicletButton);

	LLIconCtrl::Params new_msg_params = p.new_message_icon;
	mNewMessagesIcon = LLUICtrlFactory::create<LLIconCtrl>(new_msg_params);
	addChild(mNewMessagesIcon);

	LLIconCtrl::Params icon_params = p.icon;
	mChicletIconCtrl = LLUICtrlFactory::create<LLIconCtrl>(icon_params);
	addChild(mChicletIconCtrl);

	sendChildToFront(mNewMessagesIcon);
}

void LLScriptChiclet::setSessionId(const LLUUID& session_id)
{
	setShowNewMessagesIcon( getSessionId() != session_id );

	LLIMChiclet::setSessionId(session_id);

	setToolTip(LLScriptFloaterManager::getObjectName(session_id));
}

void LLScriptChiclet::onMouseDown()
{
	LLScriptFloaterManager::getInstance()->toggleScriptFloater(getSessionId());
}

void LLScriptChiclet::onMenuItemClicked(const LLSD& user_data)
{
	std::string action = user_data.asString();

	if("end" == action)
	{
		LLScriptFloaterManager::instance().removeNotification(getSessionId());
	}
}

void LLScriptChiclet::createPopupMenu()
{
	if(!canCreateMenu())
		return;

	LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar;
	registrar.add("ScriptChiclet.Action", boost::bind(&LLScriptChiclet::onMenuItemClicked, this, _2));

	mPopupMenu = LLUICtrlFactory::getInstance()->createFromFile<LLMenuGL>
		("menu_script_chiclet.xml", gMenuHolder, LLViewerMenuHolderGL::child_registry_t::instance());
}

//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////

static const std::string INVENTORY_USER_OFFER	("UserGiveItem");

LLInvOfferChiclet::Params::Params()
 : icon("icon")
 , chiclet_button("chiclet_button")
 , new_message_icon("new_message_icon")
{
}

LLInvOfferChiclet::LLInvOfferChiclet(const Params&p)
 : LLIMChiclet(p)
 , mChicletIconCtrl(NULL)
{
	LLButton::Params button_params = p.chiclet_button;
	mChicletButton = LLUICtrlFactory::create<LLButton>(button_params);
	addChild(mChicletButton);

	LLIconCtrl::Params new_msg_params = p.new_message_icon;
	mNewMessagesIcon = LLUICtrlFactory::create<LLIconCtrl>(new_msg_params);
	addChild(mNewMessagesIcon);

	LLChicletInvOfferIconCtrl::Params icon_params = p.icon;
	mChicletIconCtrl = LLUICtrlFactory::create<LLChicletInvOfferIconCtrl>(icon_params);
	addChild(mChicletIconCtrl);

	sendChildToFront(mNewMessagesIcon);
}

void LLInvOfferChiclet::setSessionId(const LLUUID& session_id)
{
	setShowNewMessagesIcon( getSessionId() != session_id );

	setToolTip(LLScriptFloaterManager::getObjectName(session_id));

	LLIMChiclet::setSessionId(session_id);
	LLNotificationPtr notification = LLNotifications::getInstance()->find(session_id);

	if ( notification && notification->getName() == INVENTORY_USER_OFFER )
	{
		mChicletIconCtrl->setValue(notification->getPayload()["from_id"]);
	}
	else
	{
		mChicletIconCtrl->setValue(LLUUID::null);
	}
}

void LLInvOfferChiclet::onMouseDown()
{
	LLScriptFloaterManager::instance().toggleScriptFloater(getSessionId());
}

void LLInvOfferChiclet::onMenuItemClicked(const LLSD& user_data)
{
	std::string action = user_data.asString();

	if("end" == action)
	{
		LLScriptFloaterManager::instance().removeNotification(getSessionId());
	}
}

void LLInvOfferChiclet::createPopupMenu()
{
	if(!canCreateMenu())
		return;

	LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar;
	registrar.add("InvOfferChiclet.Action", boost::bind(&LLInvOfferChiclet::onMenuItemClicked, this, _2));

	mPopupMenu = LLUICtrlFactory::getInstance()->createFromFile<LLMenuGL>
		("menu_inv_offer_chiclet.xml", gMenuHolder, LLViewerMenuHolderGL::child_registry_t::instance());
}

// EOF