/** 
 * @file llnamelistctrl.h
 * @brief A list of names, automatically refreshing from the name cache.
 *
 * Copyright (c) 2003-$CurrentYear$, Linden Research, Inc.
 * $License$
 */

#ifndef LL_LLNAMELISTCTRL_H
#define LL_LLNAMELISTCTRL_H

#include <set>

#include "llscrolllistctrl.h"


class LLNameListCtrl
:	public LLScrollListCtrl
{
public:
	LLNameListCtrl(const LLString& name,
				   const LLRect& rect,
				   LLUICtrlCallback callback,
				   void* userdata,
				   BOOL allow_multiple_selection,
				   BOOL draw_border = TRUE,
				   S32 name_column_index = 0,
				   const LLString& tooltip = LLString::null);
	virtual ~LLNameListCtrl();
	virtual EWidgetType getWidgetType() const { return WIDGET_TYPE_NAME_LIST; }
	virtual LLString getWidgetTag() const { return LL_NAME_LIST_CTRL_TAG; }
	virtual LLXMLNodePtr getXML(bool save_children = true) const;
	static LLView* fromXML(LLXMLNodePtr node, LLView *parent, LLUICtrlFactory *factory);

	// Add a user to the list by name.  It will be added, the name 
	// requested from the cache, and updated as necessary.
	BOOL addNameItem(const LLUUID& agent_id, EAddPosition pos = ADD_BOTTOM,
					 BOOL enabled = TRUE, LLString& suffix = LLString::null);
	BOOL addNameItem(LLScrollListItem* item, EAddPosition pos = ADD_BOTTOM);

	virtual LLScrollListItem* addElement(const LLSD& value, EAddPosition pos = ADD_BOTTOM, void* userdata = NULL);

	// Add a user to the list by name.  It will be added, the name 
	// requested from the cache, and updated as necessary.
	void addGroupNameItem(const LLUUID& group_id, EAddPosition pos = ADD_BOTTOM,
						  BOOL enabled = TRUE);
	void addGroupNameItem(LLScrollListItem* item, EAddPosition pos = ADD_BOTTOM);


	void removeNameItem(const LLUUID& agent_id);

	void refresh(const LLUUID& id, const char* first, const char* last,
				 BOOL is_group);

	static void refreshAll(const LLUUID& id, const char* firstname,
						   const char* lastname, BOOL is_group);

	virtual BOOL	handleDragAndDrop(S32 x, S32 y, MASK mask,
									  BOOL drop, EDragAndDropType cargo_type, void *cargo_data,
									  EAcceptance *accept,
									  LLString& tooltip_msg);

	void setAllowCallingCardDrop(BOOL b) { mAllowCallingCardDrop = b; }

private:
	static std::set<LLNameListCtrl*> sInstances;
	S32    	 mNameColumnIndex;
	BOOL	 mAllowCallingCardDrop;
};

#endif