/*

Uses grosser February 12, 2009 commit (refactored preloading images).

Facebox images all set in css

Later versions with centralize function (a) and removed getPageScroll/getPageHeight (b) are not compatible. (a) causes caption to display above content, (b) prevents vertical positioning in Safari.

Autoload of images can be switched off with noAutoload: true

Added trigger for all instances of .close

 * 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($) {
      $('a[rel*=facebox]').facebox({
        noAutoload: true
      }) 
    })

 */

(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, {
    //possible option: noAutoload --- will build facebox only when it is needed
    settings: {
	  showFooter   : null,
	  closeText    : null,
      opacity      : 0,
      overlay      : true,
      modal        : false,
      imageTypes   : [ 'png', 'jpg', 'jpeg', 'gif' ]
    },

    html : function(){
      return '\
    <div id="facebox" style="display: none"> \
      <div class="popup"> \
        <table> \
            <tr> \
              <td class="body"> \
                <div class="title"></div> \
                <div class="content"> \
                </div> \
                <div class="footer"> \
                  <a href="#" class="close"> \
                    <img src="/facebox/closelabel.gif" title="close" class="close_image" /> \
                  </a> \
                </div> \
              </td> \
            </tr> \
        </table> \
      </div> \
    </div>'
    },

    loading: function() {
      init()
      var $f = $('#facebox')
      if ($f.find('.loading').length == 1) return true
      showOverlay()
      $.facebox.wait()
// Commented out prevention of Escape key closing
//      if (!$.facebox.settings.modal) {
        $(document).bind('keydown.facebox', function(e) {
          if (e.keyCode == 27) {
            $.facebox.close()
          }
          return true
        })
//      }
      $(document).trigger('loading.facebox')
    },

    wait: function() {
      var $f = $('#facebox')
      $f.find('.content').empty()
      $f.find('.body').children().hide().end().
        append('<div class="loading"></div>')

      $f.css({
        top:	getPageScroll()[1] + (getPageHeight() / 15),
        left:	$(window).width() / 2 - 205
      }).show()
    },

    reveal: function(data, klass) {
      $(document).trigger('beforeReveal.facebox')
      var $f = $('#facebox')
      if (klass) $('#facebox .content').addClass(klass)
      $f.find('.content').append(data)
      $f.find('.loading').remove()
      $f.find('.body').children().fadeIn('normal')

// Safari 2 centre fix
if( jQuery.browser.safari && jQuery.browser.version < 425 )
      $('#facebox').css({left: $('#facebox_overlay').width() / 2 - ($('#facebox table').width() / 2), width: 'auto'})

else
      $f.css('left', $(window).width() / 2 - ($('#facebox table').width() / 2))
      $(document).trigger('reveal.facebox').trigger('afterReveal.facebox')

// JS options
	$('#facebox .footer').css('display', $.facebox.settings.showFooter)
	$('#facebox a.close, #facebox .topclose a.close').html($.facebox.settings.closeText)
    },

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

  /*
   * Public, $.fn methods
   */

  $.fn.facebox = function(settings) {
    if(settings)$.extend($.facebox.settings, settings)
    if(!$.facebox.settings)init()

    return this.bind('click.facebox',function(){
      $.facebox.loading()

      // 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
    })
  }

  /*
   * Private methods
   */
  // called one time to setup facebox on this page
  function init() {
    if ($.facebox.settings.inited) return
    else $.facebox.settings.inited = true

    $(document).trigger('init.facebox')
    makeCompatible()

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

    $('body').append($.facebox.html())
    if(! $.facebox.settings.noAutoload)preloadImages()
// JS added trigger for each .close link
    $('#facebox .close').click($.facebox.close)
  }

  function preloadImages(){
    $('#facebox').find('.b:first, .loading, .close , .bl, .br, .tl, .tr').each(function() {
      var img = new Image()
      img.src = $(this).css('background-image').replace(/url\((.+)\)/, '$1')
    })
  }

  // 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).show().replaceWith("<div id='facebox_moved'></div>"), 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', $.facebox.settings.opacity)
      .fadeIn(200)
    if (!$.facebox.settings.modal){
      $('#facebox_overlay').click(function() { $(document).trigger('close.facebox') })
    }
    return false
  }

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

    $('#facebox_overlay').fadeOut(200, function(){
      $("#facebox_overlay").removeClass("facebox_overlayBG").
        addClass("facebox_hide").
        remove()
    })
    
    return false
  }

  /*
   * Bindings
   */

  $(document).bind('close.facebox', function() {
    $(document).unbind('keydown.facebox')
    $('#facebox').fadeOut(function() {
      if ($('#facebox_moved').length == 0) $('#facebox .content').removeClass().addClass('content')
      else $('#facebox_moved').replaceWith($('#facebox .content').children().hide())
      hideOverlay()
      $('#facebox .loading').remove()
    })
    $(document).trigger('afterClose.facebox')    
  })

})(jQuery);