/*
 * 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... })
 *
 */

/*
	Mods by Tim Blumer 2010
	
	Added div classes:
		bkt (back top)
		bkl (back left)
		bkr (back right)
		bkb (back bottom)
	this adds seprate background images to top, left, right and bottom middle table cell.
	
	Removed close button graphic. Replaced with css style and text link

	Removed load graphic. Replaced with css style

*/


(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,
      overlay      : true,
      imageTypes   : [ 'png', 'jpg', 'jpeg', 'gif' ],
      faceboxHtml  : '\
<div id="facebox" style="display:none;"> \
	<div class="popup"> \
		<table> \
			<tbody> \
				<tr> \
					<td class="tl"/><td class="bkt"/><td class="tr"/> \
				</tr> \
				<tr> \
					<td class="bkl"/> \
					<td class="body"> \
						<div class="content"> \
							</div> \
							<div class="footer"> \
								<div class="close"> \
									<a href="#"> Close </a> \
								</div> \
								</div> \
					</td> \
					<td class="bkr"/> \
				</tr> \
				<tr> \
			<td class="bl"/><td class="bkb"/><td class="br"/> \
			</tr> \
		</tbody> \
		</table> \
	</div> \
</div>'
    },

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

      $('#facebox .content').empty()
      $('#facebox .body').children().hide().end().
        append('<div class="loading">&nbsp;</div>')

      $('#facebox').css({
        top:	getPageScroll()[1] + (getPageHeight() / 10),
        left:	385.5
      }).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) $('#facebox .content').addClass(klass)
      $('#facebox .content').append(data)
      $('#facebox .loading').remove()
      $('#facebox .body').children().fadeIn('normal')
      $('#facebox').css('left', $(window).width() / 2 - ($('#facebox table').width() / 2))
      $(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
    },

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

  /*
   * Public, $.fn methods
   */

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

    $('#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)

  }
  
  // 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.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, 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')
      hideOverlay()
      $('#facebox .loading').remove()
    })
  })

})(jQuery);