/*
 * 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, klass) {
		$.facebox.loading()

		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, klass)
	}

	/*
	* Public, $.facebox methods
	 */

	$.extend($.facebox, {
		settings: {
			opacity      	: 0.9,
			overlay      	: true,
			loadingImage 	: '/facebox/loading.gif',
			closeImage   	: '/facebox/closelabel.gif',
			closeImageOver	: '',
			nextImage		: '',
			nextImageOver	: '',
			prevImage		: '',
			prevImageOver	: '',
			imageTypes   	: [ 'png', 'jpg', 'jpeg', 'gif' ],
			screenmargin 	: 50,
			sidebar 	 	: 235,
			faceboxHtml  	: '\
			<div id="facebox" style="display:none;"> \
				<div class="ctrl"><a class="close">close</a></div> \
				<div class="popup"> \
					<div class="body"> \
						<div class="content"> \
						</div> \
					</div> \
				</div> \
			</div>'
			},
	
	loading: function(param) {
		init()

		if ($('#facebox .loading').length == 1) return true
		if (param) {
			showOverlay()
		}
		$('#facebox .content').empty()
		$('#facebox .body').children().hide().end().
		append('<div class="loading"><img src="'+$.facebox.settings.loadingImage+'"/></div>')

		$('#facebox .body').width(40);
		$('#facebox .body').height(40);
		$('#facebox .content').width(40);
		$('#facebox .content').height(40);
		$('#facebox .body').css('overflow', 'hidden');
		$('#facebox').css('left', ($(window).width()/2)-($('#facebox').outerWidth()/2));
		$('#facebox').css('top', getPageScroll()[1] + (getPageHeight()/2)-20).show();

		$(document).bind('keydown.facebox', function(e) {
		if (e.keyCode == 27) $.facebox.close()
			return true
		})
		$(document).trigger('loading.facebox')
	},

	reveal: function(data, klass) {
		$(document).trigger('beforeReveal.facebox')

		if (klass) {
			var truesize = new Array();
			var truesize = klass.split(',');
		} else {
			alert("klass missinng " + klass);
			var truesize = new Array();
		}

		$('#facebox .body').children().show(0)
		
		// put the data in place
		$('#facebox .content').append($(data).html())
		
		$('#facebox .next-and-last .next').text(' ');
		$('#facebox .first-and-previous .previous').text(' ');
		$('#facebox .ctrl .close').text(' ');
		$('#facebox .ctrl').append($('#facebox .next-and-last'));
		$('#facebox .ctrl').append($('#facebox .first-and-previous'));
		$('#facebox .ctrl .next-and-last').hide().fadeIn(500);
		$('#facebox .ctrl .first-and-previous').hide().fadeIn(500);
		$('#facebox .gbNavigator').remove()
		$('#facebox .IMG').css('vertical-align', 'top');
		
		//$('#facebox .sidebar').remove()
		
		// calculate boundaries and slide animate
		
		// default
		var finalwidth = $('#facebox .content').children().outerWidth();
		var finalheight = $('#facebox .content').children().outerHeight();
		var resized = false;

		var imgNode = $('#facebox .ImageFrame_image');
		var marginsetting = ($.facebox.settings.screenmargin * 2);
		var sidebar = $('#facebox .sidebar').children().outerWidth();
	
		// get aspect ratio
		var imTrueSizeW = !imgNode.attr("width") ? truesize[0] : imgNode.attr("width");
		var imTrueSizeH = !imgNode.attr("height") ? truesize[1] : imgNode.attr("height");
		if (imTrueSizeW > imTrueSizeH) {
			var imgAspectRatio = imTrueSizeW/imTrueSizeH;
			var imgDirection = "wide";
		} else {
			var imgAspectRatio = imTrueSizeH/imTrueSizeW;
			var imgDirection = "tall";
		}
		
		var imageframeW = $('#facebox #gsImageView').outerWidth() - imTrueSizeW;
		var imageframeH = $('#facebox #gsImageView').outerHeight() - imTrueSizeH;
		
		// max image Width & Height
		var maxWidth = $(window).width() - marginsetting - imageframeW - sidebar;	
		var maxHeight = $(window).height() - marginsetting - imageframeH;

		if (imTrueSizeH > maxHeight || imTrueSizeW > maxWidth) {
			// pienennetään kuvaa korkeuden mukaan
			if (imTrueSizeH > maxHeight) {
				var newHeight = (imTrueSizeH > maxHeight) ? maxHeight : imTrueSizeH;
				if (imgDirection == "wide") {
					var newWidth = Math.round(newHeight * imgAspectRatio);
				} else {
					var newWidth = Math.round(newHeight / imgAspectRatio);
				}
				var resized = true;
			}
			// pienennetään kuvaa leveyden mukaan
			if (imTrueSizeW > maxWidth) {
				var newWidth = (imTrueSizeW > maxWidth) ? maxWidth : imTrueSizeW;
				if (imgDirection == "wide") {
					var newHeight = Math.round(newWidth / imgAspectRatio);
				} else {
					var newHeight = Math.round(newWidth * imgAspectRatio);
				}
				var resized = true;
			}
		} else {
			var newHeight = imTrueSizeH;
			var newWidth = imTrueSizeW;
		}
		
		// Nyt vasta lasketaan ikkunan koko
		var finalheight = newHeight + imageframeH;
		var finalwidth = newWidth + imageframeW + sidebar;
		
		// top & left
		var finaltop = Math.round($(window).height()/2 - (finalheight/2));
		var finalleft = Math.round($(window).width()/2 - (finalwidth/2));
		
		// execute
		//$('#facebox .body').children().hide(0);
		$('#facebox .content').css('width', '100%');
		$('#facebox .content').css('height', '100%');
		$('#facebox .sidebar').fadeIn(400);
		$('#facebox .body').animate({ width: finalwidth, height: finalheight }, 0, 'swing')
		$('#facebox').animate({ left: finalleft, top: finaltop }, 0, 'swing',
			function () {
			$('#facebox .body').children().fadeIn(200);
			}
		)
		
		if (resized) {
			imgNode.attr("height", newHeight);
			imgNode.attr("width", newWidth);
			$('#facebox .RR').css('height', newHeight-11);
			$('#facebox .LL').css('height', newHeight-11);
			$('#facebox .TT').css('width', newWidth-11);
			$('#facebox .BB').css('width', newWidth-11);
		}
				
		//button setup		
		$('#facebox .ctrl .first-and-previous > a').facebox(true);
		$('#facebox .ctrl .next-and-last > a').facebox(true);
		
		$('#facebox .ctrl .close > a').click(
			function () {
				$.facebox.close()
			}
		)
		imgNode.click(
			function () {
				$.facebox.close()
			}
		)
		
		// remove loading layer
		$('#facebox .loading').remove();
		
		$(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
	},

	close: function() {
		
		$('#facebox .ctrl .next-and-last').remove()
		$('#facebox .ctrl .first-and-previous').remove()
		$('#facebox #gsSidebar').remove()
		$('#facebox .gsActions').remove()
		
		$(document).trigger('close.facebox')
		return false
	}
})

/*
 * Public, $.fn methods
 */

$.fn.facebox = function(param,settings) {
	init(settings)

	function clickHandler() {
		if (!param) {
			$.facebox.loading(true)
		} else {
			$.facebox.loading(false)
		}
		// support for rel="facebox.inline_popup" syntax, to add a class
		// also supports deprecated "facebox[.inline_popup]" syntax
		//var klass = this.rel.match(/facebox\[?\.(\w+)\]?/)
		var klass = this.rel;
		//if (klass) klass = klass[1]
		fillFaceboxFromHref(this.href, klass);
		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

	$(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(), new Image(), new Image(), new Image(), new Image(), new Image(), new Image() ]
	preload[0].src = $.facebox.settings.loadingImage
	preload[1].src = $.facebox.settings.closeImage
	preload[2].src = $.facebox.settings.closeImageOver
	preload[3].src = $.facebox.settings.nextImage
	preload[4].src = $.facebox.settings.nextImageOver
	preload[5].src = $.facebox.settings.prevImage
	preload[6].src = $.facebox.settings.prevImageOver
	
	$('#facebox').find('.b, .bl, .br, .tl, .tr, .t, .l, .r').each(function() {
		preload.push(new Image())
		preload.slice(-1).src = $(this).css('background-image').replace(/url\((.+)\)/, '$1')
	})

	$('#facebox .close').click($.facebox.close)
	$('#facebox .close_image').attr('src', $.facebox.settings.closeImage)
}

// 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.closeImage = $s.close_image || $s.closeImage
	$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, klass) {
	// div
	if (href.match(/#/)) {
		var url    = window.location.href.split('#')[0]
		var target = href.replace(url,'')
		$.facebox.reveal($(target).clone().show(), klass)

	// image
	} else if (href.match($.facebox.settings.imageTypesRegexp)) {
		fillFaceboxFromImage(href, klass)
	// ajax
	} else {
		fillFaceboxFromAjax(href, klass)
	}
}

function fillFaceboxFromImage(href, klass) {
	var image = new Image()
	image.onload = function() {
		$.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass)
	}
	image.src = href
}

function fillFaceboxFromAjax(href, klass) {
	$.get(href, { ajaxcall: "true" }, function(data) { $.facebox.reveal(data, klass) })
}

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 id="facebox_overlay_top"><div id="facebox_overlay_top_left"></div><div id="facebox_overlay_top_right"></div></div><div id="facebox_overlay_bottom"></div></div>')

	$('#facebox_overlay').hide().addClass("facebox_overlayBG")
		.css('opacity', $.facebox.settings.opacity)
		.click(function() { $(document).trigger('close.facebox') })
		.fadeIn(200)

	return false
}

function hideOverlay() {
	if (skipOverlay()) return
		$('#facebox_overlay').fadeOut(100, function(){
		$("#facebox_overlay").removeClass("facebox_overlayBG")
		$("#facebox_overlay").addClass("facebox_hide") 
		$("#facebox_overlay").remove()
	})

	return false
}

/*
 * Bindings
 */

$(document).bind('close.facebox', function() {
	$(document).unbind('keydown.facebox')
	$('#facebox').fadeOut(function() {
		$('#facebox .content').removeClass().addClass('content')
		hideOverlay()
		$('#facebox .loading').remove()
	})
})

})(jQuery);