/*
* jquery.showit.js, jQuery plugin to display any element centered
*
* Copyright 2011, Stian Hanger (pdnagilum@gmail.com)
*/
(function ($) {
	var methodsShowIt = {
		init: function (options, c, cbHide) {
			var settings = $.extend({},
            {
            	'overlayAutoClick': true,
            	'overlayOpacity': 0.5,
            	'fadeSpeed': 400,
            	'zIndex': 999
            }, options);
			return this.each(function () {
				// declare
				var $this = $(this);
				var windowHeight = $(window).height();
				var windowWidth = $(window).width();
				var elementHeight = $this.height();
				var elementWidth = $this.width();
				var elementLeft = 0;
				var elementTop = 0;

				$this.data('showit', { 'shown': true });

				// check for valid element
				if ($this.length == 0) {
					$.error('Element does not exist');
				}

				// if jquery.overlay.js is loaded, call it
				if (settings.overlayAutoClick) {
					if (typeof ($.fn.overlay) === 'function') {
						$.overlay({
							'autoClick': settings.overlayAutoClick,
							'opacity': settings.overlayOpacity,
							'onHide': function (e) {
								if ($this.data('showit').shown) {
									$this.hideit(options, cbHide);
								}
							}
						});
					}
				}

				// calculate top/left
				if (windowHeight > elementHeight) { elementTop = ((windowHeight - elementHeight) / 2) + $(window).scrollTop(); }
				if (windowWidth > elementWidth) { elementLeft = ((windowWidth - elementWidth) / 2); }

				// show form
				$this
                .css({
                	'left': elementLeft,
                	'position': 'absolute',
                	'top': elementTop,
                	'zIndex': settings.zIndex
                })
                .fadeIn(
                    settings.fadeSpeed,
                    function (e) {
                    	if (c) {
                    		c.call($this);
                    	}
                    }
                );
			});
		}
	};
	var methodsHideId = {
		init: function (options, c) {
			var settings = $.extend({},
            {
            	'fadeSpeed': 400
            }, options);
			return this.each(function () {
				// declare
				var $this = $(this);

				$this.data('showit').shown = false;

				// check for valid element
				if ($this.length == 0) {
					$.error('Element does not exist');
				}

				// if jquery.overlay.js is loaded, call it
				if (typeof ($.fn.overlay) === 'function') {
					$.overlay('hide');
				}

				$this
                .fadeOut(
                    settings.fadeSpeed,
                    function (e) {
                    	if (c) {
                    		c.call($this);
                    	}
                    }
                );
			});
		}
	};
	$.fn.showit = function (method) {
		if (methodsShowIt[method]) {
			return methodsShowIt[method].apply(this, Array.prototype.slice.call(arguments, 1));
		} else if (typeof (method) === 'object' || !method) {
			return methodsShowIt.init.apply(this, arguments);
		} else {
			$.error('Method ' + method + ' does not exist on jQuery.ShowIt');
		}
	};
	$.fn.hideit = function (method) {
		if (methodsHideId[method]) {
			return methodsHideId[method].apply(this, Array.prototype.slice.call(arguments, 1));
		} else if (typeof (method) === 'object' || !method) {
			return methodsHideId.init.apply(this, arguments);
		} else {
			$.error('Method ' + method + ' does not exist on jQuery.HideIt');
		}
	};
})(jQuery);