/**

 * Interface Elements for jQuery

 * Tooltip

 * 

 * http://interface.eyecon.ro

 * 

 * Copyright (c) 2006 Stefan Petre

 * Dual licensed under the MIT (MIT-LICENSE.txt) 

 * and GPL (GPL-LICENSE.txt) licenses.

 *   

 *

 */

/**

 * Creates tooltips using title attribute

 *

 * 

 * 

 * @name ToolTip

 * @description Creates tooltips using title attribute

 * @param Hash hash A hash of parameters

 * @option String position tooltip's position ['top'|'left'|'right'|'bottom'|'mouse']

 * @options Function onShow (optional) A function to be executed whenever the tooltip is displayed

 * @options Function onHide (optional) A function to be executed whenever the tooltip is hidden

 *

 * @type jQuery

 * @cat Plugins/Interface

 * @author Stefan Petre

 */

jQuery.iTooltip = {

	current : null,

	focused : false,

	oldTitle : null,

	focus : function(e)

	{

		jQuery.iTooltip.focused = true;

		jQuery.iTooltip.show(e, this, true);

	},

	hidefocused : function(e)

	{

		if (jQuery.iTooltip.current != this)

			return ;

		jQuery.iTooltip.focused = false;

		jQuery.iTooltip.hide(e, this);

	},

	show : function(e, el, focused)

	{

		if (jQuery.iTooltip.current != null)

			return ;

		if (!el) {

			el = this;

		}

		jQuery.iTooltip.current = el;

		pos = jQuery.extend(

			jQuery.iUtil.getPosition(el),

			jQuery.iUtil.getSize(el)

		);

		jEl = jQuery(el);

		title = jEl.attr('title');

		href = jEl.attr('href');

		if (title) {

			jQuery.iTooltip.oldTitle = title;

			jEl.attr('title','');

			jQuery('#tooltipTitle').html(title);

			if (href)

				jQuery('#tooltipURL').html(href.replace('http://', ''));

			else 

				jQuery('#tooltipURL').html('');

			helper = jQuery('#tooltipHelper');

			if(el.tooltipCFG.className){

				helper.get(0).className = el.tooltipCFG.className;

			} else {

				helper.get(0).className = '';

			}

			helperSize = jQuery.iUtil.getSize(helper.get(0));

			filteredPosition = focused && el.tooltipCFG.position == 'mouse' ? 'bottom' : el.tooltipCFG.position;

			switch (filteredPosition) {

				case 'top':

					ny = pos.y - helperSize.hb;

					nx = pos.x;

				break;

				case 'left' :

					ny = pos.y;

					nx = pos.x - helperSize.wb;

				break;

				case 'right' :

					ny = pos.y;

					nx = pos.x + pos.wb;

				break;

				case 'mouse' :

					jQuery('body').bind('mousemove', jQuery.iTooltip.mousemove);

					pointer = jQuery.iUtil.getPointer(e);

					ny = pointer.y + 15;

					nx = pointer.x + 15;

				break;

				default :

					ny = pos.y + pos.hb;

					nx = pos.x;

				break;

			}

			helper.css(

				{

					top 	: ny + 'px',

					left	: nx + 'px'

				}

			);

			if (el.tooltipCFG.delay == false) {

				helper.show();

			} else {

				helper.fadeIn(el.tooltipCFG.delay);

			}

			if (el.tooltipCFG.onShow) 

				el.tooltipCFG.onShow.apply(el);

			jEl.bind('mouseout',jQuery.iTooltip.hide)

			   .bind('blur',jQuery.iTooltip.hidefocused);

		}

	},

	mousemove : function(e)

	{

		if (jQuery.iTooltip.current == null) {

			jQuery('body').unbind('mousemove', jQuery.iTooltip.mousemove);

			return;	

		}

		pointer = jQuery.iUtil.getPointer(e);

		jQuery('#tooltipHelper').css(

			{

				top 	: pointer.y + 15 + 'px',

				left	: pointer.x + 15 + 'px'

			}

		);

	},

	hide : function(e, el)

	{

		if (!el) {

			el = this;

		}

		if (jQuery.iTooltip.focused != true && jQuery.iTooltip.current == el) {

			jQuery.iTooltip.current = null;

			jQuery('#tooltipHelper').fadeOut(1);

			jQuery(el)

				.attr('title',jQuery.iTooltip.oldTitle)

				.unbind('mouseout', jQuery.iTooltip.hide)

				.unbind('blur', jQuery.iTooltip.hidefocused);

			if (el.tooltipCFG.onHide) 

				el.tooltipCFG.onHide.apply(el);

			jQuery.iTooltip.oldTitle = null;

		}

	},

	build : function(options)

	{

		if (!jQuery.iTooltip.helper)

		{

			jQuery('body').append('<div id="tooltipHelper"><div id="tooltipTitle"></div><div id="tooltipURL"></div></div>');

			jQuery('#tooltipHelper').css(

				{

					position:	'absolute',

					zIndex:		3000,

					display: 	'none'

				}

			);

			jQuery.iTooltip.helper = true;

		}

		return this.each(

			function(){

				if(jQuery.attr(this,'title')) {

					this.tooltipCFG = {

						position	: /top|bottom|left|right|mouse/.test(options.position) ? options.position : 'bottom',

						className	: options.className ? options.className : false,

						delay		: options.delay ? options.delay : false,

						onShow		: options.onShow && options.onShow.constructor == Function ? options.onShow : false,

						onHide		: options.onHide && options.onHide.constructor == Function ? options.onHide : false

					};

					var el = jQuery(this);

					el.bind('mouseover',jQuery.iTooltip.show);

					el.bind('focus',jQuery.iTooltip.focus);

				}

			}

		);

	}

};

jQuery.fn.ToolTip = jQuery.iTooltip.build;