/*
* Facebox (for jQuery)
* version: 1.2 (05/05/2008)
* @requires jQuery v1.2 or later
*
* Examples at http://famspam.com/site_media/layout/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... })
*
*/
(function(jQuery) {
jQuery.facebox = function(data, klass) {
jQuery.facebox.loading()

if (data.ajax) fillFaceboxFromAjax(data.ajax)
else if (data.image) fillFaceboxFromImage(data.image)
else if (data.div) fillFaceboxFromHref(data.div)
else if (jQuery.isFunction(data)) data.call(jQuery)
else jQuery.facebox.reveal(data, klass)
}

/*
* Public, jQuery.facebox methods
*/

jQuery.extend(jQuery.facebox, {
settings: {
opacity : 0.5,
overlay : true,
loadingImage : '/js/facebox/loading.gif',
closeImage : '/js/facebox/closelabel.gif',
imageTypes : [ 'png', 'jpg', 'jpeg', 'gif' ],
faceboxHtml : '\
<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="/js/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>'
},

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

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

jQuery('#facebox').css({
top: getPageScroll()[1] + (getPageHeight() / 10),
left: 385.5
}).show()

jQuery(document).bind('keydown.facebox', function(e) {
if (e.keyCode == 27) jQuery.facebox.close()
return true
})
jQuery(document).trigger('loading.facebox')
},

reveal: function(data, klass) {
jQuery(document).trigger('beforeReveal.facebox')
if (klass) jQuery('#facebox .content').addClass(klass)
jQuery('#facebox .content').append(data)
jQuery('#facebox .loading').remove()
jQuery('#facebox .body').children().fadeIn('normal')
jQuery('#facebox').css('left', jQuery(window).width() / 2 - (jQuery('#facebox table').width() / 2))
jQuery(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
},

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

/*
* Public, jQuery.fn methods
*/

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

function clickHandler() {
jQuery.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 (jQuery.facebox.settings.inited) return true
else jQuery.facebox.settings.inited = true

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

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

if (settings) jQuery.extend(jQuery.facebox.settings, settings)
jQuery('body').append(jQuery.facebox.settings.faceboxHtml)

var preload = [ new Image(), new Image() ]
preload[0].src = jQuery.facebox.settings.closeImage
preload[1].src = jQuery.facebox.settings.loadingImage

jQuery('#facebox').find('.b:first, .bl, .br, .tl, .tr').each(function() {
preload.push(new Image())
preload.slice(-1).src = jQuery(this).css('background-image').replace(/url\((.+)\)/, 'jQuery1')
})

jQuery('#facebox .close').click(jQuery.facebox.close)
jQuery('#facebox .close_image').attr('src', jQuery.facebox.settings.closeImage)
}

// 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 jQuerys = jQuery.facebox.settings

    jQuerys.loadingImage = jQuerys.loading_image || jQuerys.loadingImage
    jQuerys.closeImage = jQuerys.close_image || jQuerys.closeImage
    jQuerys.imageTypes = jQuerys.image_types || jQuerys.imageTypes
    jQuerys.faceboxHtml = jQuerys.facebox_html || jQuerys.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,'')
      jQuery.facebox.reveal(jQuery(target).clone().show(), klass)

    // image
    } else if (href.match(jQuery.facebox.settings.imageTypesRegexp)) {
      fillFaceboxFromImage(href, klass)
    // ajax
    } else {
      fillFaceboxFromAjax(href, klass)
    }
  }

  function fillFaceboxFromImage(href, klass) {
    var image = new Image()
    image.onload = function() {
      jQuery.facebox.reveal('<div class="image"><img src="' + image.src + '" onclick="jQuery.facebox.close();" /></div>', klass)
    }
    image.src = href
  }

  function fillFaceboxFromAjax(href, klass) {
    jQuery.get(href, function(data) { jQuery.facebox.reveal(data, klass) })
  }

  function skipOverlay() {
    return jQuery.facebox.settings.overlay == false || jQuery.facebox.settings.opacity === null
  }

  function showOverlay() {
    if (skipOverlay()) return

    if (jQuery('facebox_overlay').length == 0)
      jQuery("body").append('<div id="facebox_overlay" class="facebox_hide"></div>')

    jQuery('#facebox_overlay').hide().addClass("facebox_overlayBG")
      .css('opacity', jQuery.facebox.settings.opacity)
      .click(function() { jQuery(document).trigger('close.facebox') })
      .fadeIn(200)
    return false
  }

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

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

  /*
   * Bindings
   */

  jQuery(document).bind('close.facebox', function() {
    jQuery(document).unbind('keydown.facebox')
    jQuery('#facebox').fadeOut(function() {
      jQuery('#facebox .content').removeClass().addClass('content')
      hideOverlay()
      jQuery('#facebox .loading').remove()
    })
  })

})(jQuery);