/*
* Facebox (for jQuery)
* version: 1.0 (12/19/2007)
*
* Licensed under the MIT: http://www.opensource.org/licenses/mit-license.php
* Copyright 2007 Chris Wanstrath [ chris@ozmm.org ]
*/
(function($) {
    $.facebox = function(data)
    {
        $.facebox.init();
        $.facebox.loading();
        $.isFunction(data) ? data.call() : $.facebox.reveal(data);
    }

    $.facebox.settings = {
        loading_image : '/img/facebox/loading.gif',
        close_image   : '/img/facebox/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="content"> \
                      </div> \
                      <div class="footer"> \
                        <a href="#" class="close"> \
                          <img src="" 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 .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() / 15),
            left:	pageScroll[0]
        }).show();

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

    $.facebox.reveal = function(data, klass)
    {
        if (klass) {
            $('#facebox .content').addClass(klass);
        }
        $('#facebox .loading').remove();
        $('#facebox .content').append(data);
        $('#facebox .body').children().fadeIn('fast');
    }

    $.facebox.close = function()
    {
        $(document).unbind('keydown.facebox');
        $('#facebox').fadeOut(function() {
            $('#facebox .content').removeClass().addClass('content');
        })
        return false;
    }

    $.fn.facebox = function()
    {
        $.facebox.init()

        var image_types = $.facebox.settings.image_types.join('|')
        image_types = new RegExp('\.' + image_types + '$', 'i')

        function click_handler() {
            $.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]

            // div
            if (this.href.match(/#/)) {
            var url    = window.location.href.split('#')[0]
            var target = this.href.replace(url,'')
            $.facebox.reveal($(target).clone().show(), klass)

            // image
        } else if (this.href.match(image_types)) {
            var image = new Image()
            image.onload = function() {
                $.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass)
            }
            image.src = this.href

            // ajax
        } else {
            $.get(this.href, function(data) { $.facebox.reveal(data, klass) })
        }

        return false
    }

    this.click(click_handler)
    return this
}

$.facebox.init = function() {
    if ($.facebox.settings.inited) {
        return true
    } else {
        $.facebox.settings.inited = true
    }

    $('body').append($.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);