/*
 * 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.
 *
 */
 /*
 modified by Alain
 */
 function GetViewWidth(full)
{
	if(!jQuery)
		return null;
	return full ? Math.max(jQuery(document).width(), jQuery(window).width()) : jQuery(window).width();
}

function GetViewHeight(full)
{
	if(!jQuery)
		return null;
	return full ? Math.max(jQuery(document).height(), jQuery(window).height()) : jQuery(window).height();
}
(function($) {
  $.facebox = function(data, klass) {
	
    $.facebox.init()
    $.facebox.loading();
    $.isFunction(data) ? data.call($) : $.facebox.reveal(data, klass)
  }

  $.facebox.settings = {
    loading_image : function()
		{
			return liteweb.vroot + '/images/loading.gif';
		},
    close_image   : function()
	    {
			return liteweb.vroot + '/images/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="caption"> \
              </div> \
              <div class="content"> \
              </div> \
              <div class="footer"> \
                <div class=next></div><div class=previews></div> \
                <a href="#" class="close"> \
                  <img src="'+this.close_image+'" 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 .caption').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, scope) {
    if (klass) $('#facebox .content').addClass(klass)
    $('#facebox .content').append(data);
    
    var caption = scope.title? scope.title: null;
    if(caption)
    {
   		$('#facebox .caption').css("position", "static");
	    $('#facebox .caption').append(caption)
	}
	else
		$('#facebox .caption').css("position", "absolute");
    
    if(scope.hasNext != null)
	{
		//$("#facebox .next").css("visibility", "visible");
	    //$("#facebox .next").html(scope.hasNext? "has next": null);
		
		$("#facebox .next").click(function()
		{
			scope.hasNext.click();
		});
    }
    $('#facebox .loading').remove()
    $('#facebox .body').children().fadeIn('normal')
  }
$.facebox.showoverlay = function()
{
	if(!$.overlay)
	{
		var div = document.createElement("div");
		div.className = "overlay";
		document.body.insertBefore(div, null);
		$.overlay = $(div);
	}
	$.overlay.css({
		width: GetViewWidth(true),
		height: GetViewHeight(true)
	});
	$.overlay.fadeIn("slow");
}
  $.facebox.close = function() {
    $(document).trigger('close.facebox')
    return false
  }

  $(document).bind('close.facebox', function() {
    $(document).unbind('keydown.facebox')
	$.overlay.fadeOut("fast");
    $('#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.showoverlay();
      $.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]

      if (this.href.match(/#/)) {
        var url    = window.location.href.split('#')[0]
        var target = this.href.replace(url,'')
        
        $.facebox.reveal($(target).clone().show(), klass, this)
		
      // image
      } else if (this.href.match(image_types)) {
        var image = new Image()
        image.context = this;
        image.onload = function() {
          $.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass, this.context)
        }
        image.src = this.href

      // ajax
      } else {
        $.get(this.href, function(data) { $.facebox.reveal(data, klass) })
      }

      return false
    }
    
    for(var i = 0; i < this.length; i ++)
    {
		this[i].hasNext = i + 1 < this.length? this[i + 1] : null;
		this[i].hasPrevious = i - 1 >= 0? this[i - 1] : null;
    }
    
    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);
