/*
* Facebox (for jQuery)
* version: 1.3
* @requires jQuery v1.2 or later
* @homepage https://github.com/defunkt/facebox
*
* Licensed under the MIT:
*   http://www.opensource.org/licenses/mit-license.php
*
* Copyright Forever Chris Wanstrath, Kyle Neath
*
* 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')
*    jQuery.facebox('some html', 'my-groovy-style')
*
*  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, an image, or the contents of a div:
*
*    jQuery.facebox({ ajax: 'remote.html' })
*    jQuery.facebox({ ajax: 'remote.html' }, 'my-groovy-style')
*    jQuery.facebox({ image: 'stairs.jpg' })
*    jQuery.facebox({ image: 'stairs.jpg' }, 'my-groovy-style')
*    jQuery.facebox({ div: '#box' })
*    jQuery.facebox({ div: '#box' }, 'my-groovy-style')
*
*  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
*    afterClose.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, klass)
		else if (data.image) fillFaceboxFromImage(data.image, klass)
		else if (data.div) fillFaceboxFromHref(data.div, klass)
		else if ($.isFunction(data)) data.call($)
		else $.facebox.reveal(data, klass)
	}

	/*
	* Public, $.facebox methods
	*/

	$.extend($.facebox, {
		settings: {
			opacity: 0.2,
			overlay: true,
			loadingImage: '/includes/images/loading.gif',
			closeImage: '/includes/images/closelabel.png',
			imageTypes: ['png', 'jpg', 'jpeg', 'gif'],
			faceboxHtml: '\
	<div id="facebox" style="display:none;"> \
	  <div class="popup"> \
		<div class="content"> \
		</div> \
		<a href="#" class="close"></a> \
	  </div> \
	</div>'
		},

		loading: function () {
			init()
			if ($('#facebox .loading').length == 1) return true
			showOverlay()

			$('#facebox .content').empty().
		append('<div class="loading"><img src="' + $.facebox.settings.loadingImage + '"/></div>')

			$('#facebox').show().css({
				top: getPageScroll()[1] + (getPageHeight() / 10),
				left: $(window).width() / 2 - ($('#facebox .popup').outerWidth() / 2)
			})

			$(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) $('#facebox .content').addClass(klass)
			$('#facebox .content').empty().append(data)
			$('#facebox .popup').children().fadeIn('normal')
			$('#facebox').css('left', $(window).width() / 2 - ($('#facebox .popup').outerWidth() / 2))
			$(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
		},

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

	/*
	* Public, $.fn methods
	*/

	$.fn.facebox = function (settings) {
		if ($(this).length == 0) return

		init(settings)

		function clickHandler() {
			$.facebox.loading(true)

			// support for rel="facebox.inline_popup" syntax, to add a class
			// also supports deprecated "facebox[.inline_popup]" syntax
			var klass = this.rel.match(/facebox\[?\.(\w+)\]?/)
			if (klass) klass = klass[1]

			fillFaceboxFromHref(this.href, klass)
			return false
		}

		return this.bind('click.facebox', 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()]
		preload[0].src = $.facebox.settings.closeImage
		preload[1].src = $.facebox.settings.loadingImage

		$('#facebox').find('.b:first, .bl').each(function () {
			preload.push(new Image())
			preload.slice(-1).src = $(this).css('background-image').replace(/url\((.+)\)/, '$1')
		})

		$('#facebox .close')
	  .click($.facebox.close)
	  .append('<img src="'
			  + $.facebox.settings.closeImage
			  + '" class="close_image" title="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.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, '')
			if (target == '#') return
			$.facebox.reveal($(target).html(), 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, 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>')

		$('#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(200, 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')
			$('#facebox .loading').remove()
			$(document).trigger('afterClose.facebox')
		})
		hideOverlay()
	})

})(jQuery);