/*
Facebox (for jQuery)
version: 1.1 (03/01/2008)
@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')
This will open a facebox with "some html" as the content.

jQuery.facebox(function() { ajaxes })
This will show a loading screen before the passed function is called, allowing for a better ajax experience.
*/

(function($) {
	$.facebox = function(data, klass) {
		$.facebox.init()
		$.facebox.loading()
		$.isFunction(data) ? data.call($) : $.facebox.reveal(data, klass)
	}

  $.facebox.settings = {
    loading_image : '/facebox/loading.gif',
    close_image   : '/facebox/closelabel.gif',
    image_types   : [ 'png', 'jpg', 'jpeg', 'gif' ],
    facebox_html  : '\
  <div id="facebox" style="display:none;"> \
    <div class="popup"> \
      <table> \
        <tbody> \
          <tr> \
            <td class="tl" /><td class="b"/><td class="tr"/> \
          </tr> \
          <tr> \
            <td class="b" /> \
            <td class="body"> \
              <div class="content"> \
              </div> \
              <div class="footer"> \
                <a href="#" class="close"> \
                  <img src="/facebox/closelabel.gif" title="close" class="close_image" /> \
                </a> \
              </div> \
            </td> \
            <td class="b" /> \
          </tr> \
          <tr> \
            <td class="bl"/><td class="b"/><td class="br"/> \
          </tr> \
        </tbody> \
      </table> \
    </div> \
  </div>'
  }

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

		$('#facebox .content').empty()
		$('#facebox .body').children().hide().end().
			append('<div class="loading"><img src="'+$.facebox.settings.loading_image+'"/></div>')

		var pageScroll = $.facebox.getPageScroll()
		$('#facebox').css({
			top: pageScroll[1] + ($.facebox.getPageHeight() / 10),
			left: pageScroll[0]
		}).show()

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

	$.facebox.reveal = function(data, klass) {
		if (klass) $('#facebox .content').addClass(klass)
		$('#facebox .content').append(data)
		$('#facebox .loading').remove()
		$('#facebox .body').children().fadeIn('normal')
	}

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

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

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

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

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

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

			// div
			if (this.href.match(/#/)) {
				var url = window.location.href.split('#')[0]
				var target = this.href.replace(url,'')
				$.facebox.reveal($(target).clone().show(), klass)
			// image
			} else if (this.href.match(image_types)) {
				var image = new Image()
				image.onload = function() {
					$.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass)
				}
				image.src = this.href
			// ajax
			} else {
				$.get(this.href, function(data) { $.facebox.reveal(data, klass) })
			}
			return false
		}
		this.click(click_handler)
		return this
	}

	$.facebox.init = function(settings) {
		if ($.facebox.settings.inited) {
			return true
		} else {
			$.facebox.settings.inited = true
		}

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

		var preload = [ new Image(), new Image() ]
		preload[0].src = $.facebox.settings.close_image
		preload[1].src = $.facebox.settings.loading_image

		$('#facebox').find('.b:first, .bl, .br, .tl, .tr').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.close_image)
	}

	// getPageScroll() by quirksmode.com
	$.facebox.getPageScroll = function() {
		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) 
	}

	// adapter from getPageSize() by quirksmode.com
	$.facebox.getPageHeight = function() {
		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
	}
})(jQuery);