/*
* 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')
*
*  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:
*
*   $(document).bind('reveal.facebox', function() { ...stuff to do after the facebox and contents are revealed... })
*
*/
(function($) {
    $.facebox = function(data, klass) {
        var showFooterTemp = null;
        var opacityTemp = null;
        var overlayBGTemp = null;

        if (data.showFooter != undefined) {
            showFooterTemp = $.facebox.settings.showFooter;
            $.facebox.settings.showFooter = data.showFooter;
        }
        if (data.opacity != undefined) {
            opacityTemp = $.facebox.settings.opacity;
            $.facebox.settings.opacity = data.opacity;
        }
        if (data.overlayBG != undefined) {
            overlayBGTemp = $.facebox.settings.overlayBG;
            $.facebox.settings.overlayBG = data.overlayBG;
        }

        $.facebox.loading()

        if (data.ajax) fillFaceboxFromAjax(data.ajax)
        else if (data.image) fillFaceboxFromImage(data.image)
        else if (data.div) fillFaceboxFromHref(data.div)
        else if ($.isFunction(data)) data.call($)
        else if (data.iframe) fillFaceboxFromIframe(data.iframe, data.iframeWidth, data.iframeHeight)
        else $.facebox.reveal(data, klass)

        if (data.showFooter != undefined)
            $.facebox.settings.showFooter = showFooterTemp;
        if (data.opacity != undefined)
            $.facebox.settings.opacity = opacityTemp;
        if (data.overlayBG != undefined)
            $.facebox.settings.overlayBG = overlayBGTemp;
    }

    /*
    * Public, $.facebox methods
    */

    $.extend($.facebox, {
        settings: {
            opacity: 0,
            overlay: true,
            overlayBG: "#000",
            showFooter: true,
            loadingImage: '/_e/1/jquery/facebox/loading.gif',
            closeImage: '/_e/1/jquery/facebox/closelabel.gif',
            imageTypes: ['png', 'jpg', 'jpeg', 'gif'],
            closeText: 'Close',
            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"> \
                    <input type="button" value="Close" class="close_text" /> \
                  </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 .content').empty()
            $('#facebox .body').children().hide().end().
        append('<div class="loading"><img src="' + $.facebox.settings.loadingImage + '"/></div>')

            $('#facebox').css({
                top: getPageScroll()[1] + (getPageHeight() / 10),
                left: 385.5
                /*
                top:	getPageScroll()[1] + (getPageHeight() / 2),
                left:	getPageScroll()[0] + (getPageWidth() / 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)
            $('#facebox .loading').remove()
            $('#facebox .body').children().fadeIn('normal')
            if (!$.facebox.settings.showFooter) {
                $('#facebox .footer').css('display', 'none');
            }
            $('#facebox').css('left', $(window).width() / 2 - ($('#facebox table').width() / 2))
            $(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.click(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() {
            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)
        $('#facebox .close_text').attr('value', $.facebox.settings.closeText)
    }

    // 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
    }
    function getPageWidth() {
        var windowWidth
        if (self.innerWidth) {	// all except Explorer
            windowWidth = self.innerWidth;
        } else if (document.documentElement && document.documentElement.clientWidth) { // Explorer 6 Strict Mode
            windowWidth = document.documentElement.clientWidth;
        } else if (document.body) { // other Explorers
            windowWidth = document.body.clientWidth;
        }
        return windowWidth
    }

    // 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, '')

            if (target.match(/#noclone/))
                $.facebox.reveal($(target.replace('#noclone', '')).show(), klass)
            else
                $.facebox.reveal($(target.replace('#noclone', '')).clone().show(), klass)
            // uncloned div
            // 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 getInternetExplorerVersion()
    // http://msdn.microsoft.com/en-us/library/ms537509.aspx
    // Returns the version of Internet Explorer or a -1
    // (indicating the use of another browser).
    {
        var rv = -1; // Return value assumes failure.
        if (navigator.appName == 'Microsoft Internet Explorer') {
            var ua = navigator.userAgent;
            var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
            if (re.exec(ua) != null)
                rv = parseFloat(RegExp.$1);
        }
        return rv;
    }


    function fillFaceboxFromIframe(href, width, height, klass) {
        if (width == undefined) width = 500;
        if (height == undefined) height = 500;
        $.facebox.reveal('<iframe id="facebox_iframe" frameborder="0" style="overflow: auto; border: solid 0px black;" width="' + width + '" height="' + height + '" src="' + href + '"></iframe>', klass)
        var ver = getInternetExplorerVersion();
        if (ver > -1 && ver < 7.0) {
            var iframe = document.getElementById("facebox_iframe");
            iframe.src = iframe.src;
        }
    }

    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>')

        var height = $("body").height();

        if ($.browser.msie)
            height = document.body.scrollHeight;

        height = height - 1;

        $('#facebox_overlay').hide().addClass("facebox_overlayBG")
          .css('background-color', $.facebox.settings.overlayBG)
          .css('opacity', $.facebox.settings.opacity).css('height', height + 'px')
          .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() {
            $('#facebox .content').removeClass().addClass('content')
            hideOverlay()
            $('#facebox .loading').remove()
        })
    })

})(jQuery);