/*
 * Facebox (for jQuery)
 * version: 1.2 (05/05/2008)
 *
 * Licensed under the MIT:
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * Copyright 2007, 2008 Chris Wanstrath [ chris@ozmm.org ]
 *
 *  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) {
        HideTipsy();
        $.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.html) $.facebox.reveal(data.html, klass);
        else $.facebox.reveal(data, klass);
    }

    /*
    * Public, $.facebox methods
    */

    $.extend($.facebox, {
        settings: {
            opacity: 0.6,
            overlay: true,
            loadingImage: '/content/images/facebox/loading.gif',
            closeImage: '/content/images/facebox/closelabel.gif',
            imageTypes: ['png', 'jpg', 'jpeg', 'gif'],
            faceboxHtml: '\
    <div id="facebox" style="display:none;"> \
      <div class="f_popup"> \
        <table> \
          <tbody> \
            <tr> \
              <td class="f_tl"/><td class="f_b"/><td class="f_tr"/> \
            </tr> \
            <tr> \
              <td class="f_b"/> \
              <td class="f_body"> \
                <div class="f_content"> \
                </div> \
                <div class="f_footer"> \
                  <a href="#" class="f_close"> \
                    <img src="/facebox/closelabel.gif" class="f_close_image" /> \
                  </a> \
                </div> \
              </td> \
              <td class="f_b"/> \
            </tr> \
            <tr> \
              <td class="f_bl"/><td class="f_b"/><td class="f_br"/> \
            </tr> \
          </tbody> \
        </table> \
      </div> \
    </div>'
        },

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

            $('#facebox .f_content').empty();
            $('#facebox .f_body').children().hide().end().
            append('<div class="f_loading"><img src="' + $.facebox.settings.loadingImage + '"/></div>');

            $('#facebox').css({
                top: getPageScroll()[1] + (getPageHeight() / 10),
                left: ($(window).width() / 2) - 250//385.5
            }).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 .f_content').addClass(klass);
            $('#facebox .f_content').append(data);
            $('#facebox .f_loading').remove();
            $('#facebox .f_body').children().show(); //.fadeIn('normal');
            $('#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('.f_b:first, .f_bl, .f_br, .f_tl, .f_tr').each(function() {
            preload.push(new Image());
            preload.slice(-1).src = $(this).css('background-image').replace(/url\((.+)\)/, '$1');
        })

        $('#facebox .f_close').click($.facebox.close);
        $('#facebox .f_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).clone().show(), 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="f_image"><img src="' + image.src + '" /></div>', klass);
        }
        image.src = href;
    }

    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="f_facebox_hide"></div>');
        }

        $('#facebox_overlay').addClass("f_facebox_overlayBG")
          .css('opacity', $.facebox.settings.opacity)
          .click(function() { $(document).trigger('close.facebox') })
          .show(); //.fadeIn(200);
        return false;
    }

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

        $('#facebox_overlay').fadeOut(100, function() {
            $("#facebox_overlay").removeClass("f_facebox_overlayBG");
            $("#facebox_overlay").addClass("f_facebox_hide");
            $("#facebox_overlay").remove();
        });

        return false;
    }

    /*
    * Bindings
    */

    $(document).bind('close.facebox', function() {
        $(document).unbind('keydown.facebox');
        /* Remove any embedded objects that might keep playing :( */
        $('#facebox').fadeOut(50, function() {
            $(".f_content object").remove();
            $(".f_content embed").remove();
            $('._previewContainer').remove();

            $('#facebox .f_content').removeClass().addClass('f_content');
            hideOverlay();
            $('#facebox .f_loading').remove();
            $(document).click();
        });
    });

})(jQuery);