/*
 * Facebox (for jQuery)
 * version: 1.2 (05/05/2008)
 * @requires jQuery v1.2 or later
 *
 * Examples at http://famspam.com/facebox/
 *
 * Licensed under the MIT:
 *	 http://www.opensource.org/licenses/mit-license.php
 *
 * Copyright 2007, 2008 Chris Wanstrath [ chris@ozmm.org ]
 *
 * Usage:
 *	
 *	jQuery(document).ready(function() {
 *		jQuery('a[rel*=facebox]').facebox() 
 *	})
 *
 *	<a href="#terms" rel="facebox">Terms</a>
 *		Loads the #terms div in the box
 *
 *	<a href="terms.html" rel="facebox">Terms</a>
 *		Loads the terms.html page in the box
 *
 *	<a href="terms.png" rel="facebox">Terms</a>
 *		Loads the terms.png image in the box
 *
 *
 *	You can also use it programmatically:
 * 
 *		jQuery.facebox('some html')
 *
 *	The above will open a facebox with "some html" as the content.
 *		
 *		jQuery.facebox(function($) { 
 *			$.get('blah.html', function(data) { $.facebox(data) })
 *		})
 *
 *	The above will show a loading screen before the passed function is called,
 *	allowing for a better ajaxy experience.
 *
 *	The facebox function can also display an ajax page or image:
 *	
 *		jQuery.facebox({ ajax: 'remote.html' })
 *		jQuery.facebox({ image: 'dude.jpg' })
 *
 *	Want to close the facebox?	Trigger the 'close.facebox' document event:
 *
 *		jQuery(document).trigger('close.facebox')
 *
 *	Facebox also has a bunch of other hooks:
 *
 *		loading.facebox
 *		beforeReveal.facebox
 *		reveal.facebox (aliased as 'afterReveal.facebox')
 *		init.facebox
 *
 *	Simply bind a function to any of these hooks:
 *
 *	 $(document).bind('reveal.facebox', function() { ...stuff to do after the facebox and contents are revealed... })
 *
 */
(function($) {
	$.facebox = function(data,noInit) {
		if ( !noInit ) $.facebox.initLoading()
		if (data.ajax) fillFaceboxFromAjax(data.ajax)
		else if (data.image) fillFaceboxFromImage(data.image)
		else if (data.div) fillFaceboxFromHref(data.div)
		else if ($.isFunction(data)) data.call($)
		else $.facebox.reveal(data)
	}

	/*
	 * Public, $.facebox methods
	 */

	$.extend($.facebox, {
		settings: {
			opacity: 0.65,
			overlay: true,
			fadeSpeedContent: 400,
			fadesInSpeedFacebox: 1000,
			fadesOutSpeedFacebox: 500,
			loadingImage: '/_rxextlib/jquery/plugins/facebox/loading.gif',
			imageTypes: [ 'png', 'jpg', 'jpeg', 'gif' ],
			faceboxHtml: ''
		},
		initLoading: function( ) {
			init();
			showOverlay();
			$('#facebox').fadeIn($.facebox.settings.fadeInSpeedFacebox);
			$(document).bind('keydown.facebox', function(e) {
				if (e.keyCode == 27) $.facebox.close();
				return true;
			});
		},
		reveal: function(data) {
			if ( $('#facebox .content').html() != '' ) {
				$('#facebox .content').stop().fadeOut( $.facebox.settings.fadeSpeedContent, function() {
					$.facebox.setData(data);
				});
			} else {
				$.facebox.setData(data);
			}
		},
		
		setData: function(data) {
			$('#facebox .content').hide().css({ opacity:1 }).html(data).fadeIn(  $.facebox.settings.fadeSpeedContent );
			$('#facebox').css({
				top:	$(window).height() / 2 - $('#facebox').height() / 2,
				left:	$(window).width() / 2 - $('#facebox').width() / 2
			});
		},

		close: function() {
			$(document).trigger('beforeClose.facebox');
			$(document).trigger('close.facebox');
			return false
		}
	})

	/*
	 * Public, $.fn methods
	 */

	$.fn.facebox = function(settings) {
		init(settings);
		
		function clickHandler() {
			$.facebox.initLoading();
			fillFaceboxFromHref(this.href);
			return false;
		}

		return this.click(clickHandler)
	}

	/*
	 * Private methods
	 */

	// called one time to setup facebox on this page
	function init(settings) {
		if ($.facebox.settings.inited) return true
		else $.facebox.settings.inited = true
		$('.rxpopupdiv').css({display: "none"});
		$(document).trigger('init.facebox')
		makeCompatible()

		var imageTypes = $.facebox.settings.imageTypes.join('|')
		$.facebox.settings.imageTypesRegexp = new RegExp('\.' + imageTypes + '$', 'i')

		if (settings) $.extend($.facebox.settings, settings)
		$('body').append($.facebox.settings.faceboxHtml)

		var preload = new Image();
		preload.src = $.facebox.settings.loadingImage
		$.facebox.preloader = new Image();
		
		$('#facebox .close').click($.facebox.close);
	}
	
	// getPageScroll() by quirksmode.com
	function getPageScroll() {
		var xScroll, yScroll;
		if (self.pageYOffset) {
			yScroll = self.pageYOffset;
			xScroll = self.pageXOffset;
		} else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
			yScroll = document.documentElement.scrollTop;
			xScroll = document.documentElement.scrollLeft;
		} else if (document.body) {// all other Explorers
			yScroll = document.body.scrollTop;
			xScroll = document.body.scrollLeft;	
		}
		return new Array(xScroll,yScroll) 
	}

	// Adapted from getPageSize() by quirksmode.com
	function getPageHeight() {
		var windowHeight
		if (self.innerHeight) {	// all except Explorer
			windowHeight = self.innerHeight;
		} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
			windowHeight = document.documentElement.clientHeight;
		} else if (document.body) { // other Explorers
			windowHeight = document.body.clientHeight;
		}	
		return windowHeight
	}

	// Backwards compatibility
	function makeCompatible() {
		var $s = $.facebox.settings
		$s.loadingImage = $s.loading_image || $s.loadingImage
		$s.imageTypes = $s.image_types || $s.imageTypes
		$s.faceboxHtml = $s.facebox_html || $s.faceboxHtml
	}

	// Figures out what you want to display and displays it
	// formats are:
	//		 div: #id
	//	 image: blah.extension
	//		ajax: anything else
	function fillFaceboxFromHref(href) {
		var qstr = /\?(.*)_(.*)$/.exec(href);
		if (qstr) {
			var gal = qstr[1];
			var nr = Number(qstr[2]);
			href = href.replace(qstr[0],'');
			$('#facebox .footer .title').get(0).innerHTML = $('#img_title_'+gal+'_'+nr).get(0).innerHTML;
			if (nr == 1) $('#facebox .footer .prev').hide();
			else $('#facebox .footer .prev').show().unbind('click').one('click',function() {
				fillFaceboxFromHref($('#gal_but_'+gal+'_'+String(nr-1)).attr('href'));
				return false;
			});
			if (nr == $('#gallery_'+gal+' .gallery_item').length) $('#facebox .footer .next').hide();
			else $('#facebox .footer .next').show().unbind('click').one('click',function() {
				fillFaceboxFromHref($('#gal_but_'+gal+'_'+String(1+nr)).attr('href'));
				return false;
			});
		}
		// div
		if (href.match(/#/)) {
			var url	= window.location.href.split('#')[0]
			var target = href.replace(url,'');
			// todo: hier toont ie de div zelf, lijkt het. Dat klopt niet meer... 
			$.facebox.reveal($(target).show())
		// image
		} else if (href.match($.facebox.settings.imageTypesRegexp)) {
			fillFaceboxFromImage(href)
		// ajax
		} else {
			fillFaceboxFromAjax(href)
		}
	}
	function showLoading() {
		$.facebox.reveal('<div class="loading" style="background-image:url(\''+$.facebox.settings.loadingImage+'\');"></div>',true);
	}

	function fillFaceboxFromImage(href) {
		showLoading();
		$.facebox.preloader.onload = function() {
			$.facebox.reveal('<div class="image"><img src="' + this.src + '" /></div>');
		}
		$.facebox.preloader.src = href
	}

	function fillFaceboxFromAjax(href) {
		showLoading();
		$.get(href, function(data) { 
			$.facebox.reveal(data) 
		});
	}

	function skipOverlay() {
		return $.facebox.settings.overlay == false || $.facebox.settings.opacity === null 
	}

	function showOverlay() {
		if (skipOverlay()) return

		if ($('facebox_overlay').length == 0) {
			$("body").append('<div id="facebox_overlay" class="facebox_hide"></div>');
		}

		$('#facebox_overlay')
			.hide()
			.addClass("facebox_overlayBG")
			.css('opacity', $.facebox.settings.opacity)
			.click(function() { $(document).trigger('close.facebox') })
			.fadeIn( $.facebox.settings.fadeInSpeedFacebox);
		return false;
	}

	function hideOverlay() {
		if (skipOverlay()) return

		$('#facebox_overlay').fadeOut( $.facebox.settings.fadeOutSpeedFacebox, function(){
			$("#facebox_overlay").removeClass("facebox_overlayBG")
			$("#facebox_overlay").addClass("facebox_hide") 
			$("#facebox_overlay").remove()
		})
		
		return false
	}

	/*
	 * Bindings
	 */

	$(document).bind('close.facebox', function(event) {
		$(document).unbind('keydown.facebox')
		hideOverlay();
		$('#facebox').fadeOut($.facebox.settings.fadeOutSpeedFacebox,function() {
			$('#facebox .content').empty();
			$('#facebox .rxpopupdiv').hide().appendTo('body');
		});

	})

})(jQuery);