/*
* 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({ iframe: 'remote.html })
*    jQuery.facebox({ iframe: 'remote.html }, '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
*
*  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) {
        $.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 (data.iframe) fillFaceboxFromIFrame(data.iframe, klass);
        else if ($.isFunction(data)) data.call($)
        else $.facebox.reveal(data, klass)
    }

    /*
    * Public, $.facebox methods
    */

    $.extend($.facebox, {
        settings: {
            opacity: 0,
            overlay: true,
            loadingImage: '../images/loading.gif',
            closeImage: '../images/closelabel.gif',
            imageTypes: ['png', 'jpg', 'jpeg', 'gif'],
            faceboxHtml: '\
    <div id="facebox" style="display:none;"> \
      <div class="popup"> \
        <table style="border:none;padding:0;margin:0;"> \
          <tbody> \
            <tr><td class="tl"/><td class="b"/><td class="tr"/></tr> \
            <tr> \
              <td class="b"/> \
              <td class="modal_body"> \
                <div class="modal_content" style="border:none;padding:0;margin:0;"></div> \
                <div class="footer"><a href="#" class="close"><div class="close_btn"></div></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 ($('#facebox .loading').length == 1) return true
            showOverlay()

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

            $('#facebox').css({
                top: getPageScroll()[1] + (getPageHeight() / 10),
                left: $(window).width() / 2 - 205
            }).show()

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

        updatePosition: function() {
            newleft = $(window).width() / 2 - ($('#facebox table').width() / 2)
            if (newleft < 0) newleft = 0
            $('#facebox').css('left', newleft)
        },

        reveal: function(data, klass) {
            $(document).trigger('beforeReveal.facebox')
            if (klass) $('#facebox .modal_content').addClass(klass)
            $('#facebox .modal_content').append(data)
            $('#facebox .loading').remove()
            $('#facebox .modal_body').children().fadeIn('normal')
            this.updatePosition()
            $(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.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')
        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, .br, .tl, .tr').each(function() {*/
        $('#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)
    }

    // 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
        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 style="max-width: 700px;" src="' + image.src + '" /></div>', klass)
            $('#facebox .image img').click(function() {
                $(this).css('max-width', ($(this).css('max-width') == '700px' ? null : '700px'))
                $.facebox.updatePosition()
            });
        }
        image.src = href
    }

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

    function fillFaceboxFromIFrame(href, klass) {
        $.facebox.reveal('<iframe id="facebox_iframe" scrolling="no" frameBorder="0" border="0" src=""></iframe>', klass);
        $('#facebox_iframe').attr('src', href).load(function() {
            $(document).trigger('resize.facebox');
        });
    }

    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')
        $('#facebox').fadeOut(function() {
            if ($('#facebox_moved').length == 0) $('#facebox .modal_content').removeClass().addClass('content')
            else $('#facebox_moved').replaceWith($('#facebox .modal_content').children().hide())
            hideOverlay()
            $('#facebox .loading').remove()
        })
    })

    $(document).bind('resize.facebox', function() {
        var self = $('#facebox_iframe')
        var innerdoc = document.getElementById('facebox_iframe').contentWindow.document
        var newheight = 0
        if (jQuery.browser.msie) {
            newheight = innerDoc.body.scrollHeight
        } else if (innerdoc && innerdoc.body && innerdoc.body.offsetHeight) {
            newheight = innerdoc.body.offsetHeight
        } else if (innerdoc && innerdoc.body && innerdoc.body.scrollHeight) {
            newheight = innerdoc.body.scrollHeight
        }

        self.css('height', newheight + 'px')
    })

})(jQuery);