/*
 * 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')
 *    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, settings) {
    $.facebox.loading(settings)

    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      : .4,
      overlay      : true,
      width        : 0,
      height       : 0,
      overflow     : 'auto',
      loadingImage : 'templates/euf/javascript/facebox/loading.gif',
      closeImage   : 'templates/euf/buttons/german/button_close.gif',
      imgButtons   : [], //insert other imageButtons like array of {src:'...'[,alt:'...'[,cls:'...']],callback:function()} 
      imageTypes   : [ 'png', 'jpg', 'jpeg', 'gif' ],
      faceboxHtml  : '\
    <div id="facebox" style="display:none;"> \
      <div class="popup"> \
        <table> \
          <tbody id="facebox-tbody"> \
            <tr> \
              <td class="facebox_td tl"/><td class="facebox_td b"/><td class="facebox_td tr"/> \
            </tr> \
            <tr> \
              <td class="facebox_td b"/> \
              <td class="facebox_td body"> \
                <div class="content"> \
                </div> \
                <div class="footer"> \
                </div> \
              </td> \
              <td class="facebox_td b"/> \
            </tr> \
            <tr> \
              <td class="facebox_td bl"/><td class="facebox_td b"/><td class="facebox_td br"/> \
            </tr> \
          </tbody> \
        </table> \
      </div> \
    </div>'
    },
    
    options: {inited: false},

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

      $('#facebox .content').empty();
      $('#facebox .body').children().hide().end().
        append('<div class="loading"><img src="'+$.facebox.settings.loadingImage+'"/></div>');
      
      $('#facebox').css({
        top:	($(window).height() / 2 - ($('#facebox').outerHeight() / 2)),//(getPageHeight() / 10), //
        left:	($(window).width() / 2 - ($('#facebox').width() / 2))
      }).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);
      
      if ( $.facebox.settings.width ) $('#facebox .content').css('width', $.facebox.settings.width);
      else $('#facebox .content').css('width', '');
      
      if ( $.facebox.settings.height ) $('#facebox .content').css('height', $.facebox.settings.height);
      else $('#facebox .content').css('height', '');
      
      if ( $.facebox.settings.overflow )
      {
        if ( $.facebox.settings.overflow == 'scroll-x' ) $('#facebox .content').css({overflow: 'scroll', 'overflow-x': 'scroll', 'overflow-y': 'hidden'});
        else if ( $.facebox.settings.overflow == 'scroll-y' ) $('#facebox .content').css({overflow: 'scroll', 'overflow-x': 'hidden', 'overflow-y': 'scroll'});
        else $('#facebox .content').css('overflow', $.facebox.settings.overflow);
      }
      else $('#facebox .content').css('overflow', '');
      
      $('#facebox .loading').remove();
      $('#facebox .body').children().show();
      if ( $('#facebox').outerWidth() > $(window).width() ) 
      {
        $('#facebox .content').css({overflow: 'auto', width: $(window).width() - 100});
      }
      if ( $('#facebox').outerHeight() > $(window).height() ) 
      {
        $('#facebox .content').css({overflow: 'auto', height: $(window).height() - 100});
      }
      onResize();
      $(window).bind('scroll', onResize);
    },
    
    close: function() {
      $(document).trigger('close.facebox');
      return false;
    },
    
    reset: function()
    {
      $('#facebox .footer').empty();
      $.facebox.settings = {};
      $.each($.facebox.options, function(i,e){$.facebox.settings[i] = e;});
      $.facebox.settings.inited = false;

    }
  })

  /*
   * Public, $.fn methods
   */

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

    init({width:700});

    function clickHandler() {
      $.facebox.loading({width:700});

      // 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');

    if (!$.facebox.options.inited) 
    {
      $.each($.facebox.settings, function(i,e){$.facebox.options[i] = e;});
  
      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);
      //$('#facebox .close_image').attr('src', $.facebox.settings.closeImage);
    }

    if (settings) $.extend($.facebox.settings, settings);
    
    $.each($.facebox.settings.imgButtons, function(key, val)
    {
      var img = ' <img src="'+val.src+'"';
      if ( val.alt ) img += ' alt="'+val.alt+'"';
      if ( val.cls ) img += ' class="'+val.cls+'"';
      img += ' />';
      
      $(img).appendTo($('#facebox .footer')).click(val.callback).css('cursor','pointer');
    });
    var img = ' <img src="'+$.facebox.settings.closeImage+'" />';
    $(img).prependTo($('#facebox .footer')).click($.facebox.close).css('cursor','pointer');
  }

  function onResize()
  {
    var scrollXY = getPageScroll();
    $('#facebox').css({
      top:	($(window).height() / 2 - ($('#facebox').outerHeight() / 2)) + scrollXY[1],//(getPageHeight() / 10), //
      left:	($(window).width() / 2 - ($('#facebox').width() / 2)) + scrollXY[0]
    });
    $(document).trigger('reveal.facebox').trigger('afterReveal.facebox');
  }
    
  // 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
    var imageTypes = $.facebox.settings.imageTypes.join('|');
    if ( imageTypes != undefined )
    {
      var imageTypesRegexp = new RegExp('\.(' + imageTypes + ')$', 'i');
    }
    else
    {
      var imageTypesRegexp = false;
    }

    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 (imageTypesRegexp && href.match(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');
    $(window).unbind('scroll');
    $('#facebox').fadeOut(function() {
      $('#facebox .content').removeClass().addClass('content');
      hideOverlay();
      $.facebox.reset();
      $('#facebox .loading').remove();
      $(document).trigger('afterClose.facebox');
    })
  })

})(jQuery);