/**
 * @package         Modals
 * @version         12.3.5
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            http://regularlabs.com
 * @copyright       Copyright © 2023 Regular Labs All Rights Reserved
 * @license         http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 */

/*
 FORKED FROM:
 Colorbox 1.6.4
 license: MIT
 http://www.jacklmoore.com/colorbox
 */
(function($, document, window) {
    var
        // Default settings object.
        // See http://jacklmoore.com/colorbox for details.
        defaults       = {
            // data sources
            html  : false,
            photo : false,
            iframe: false,
            inline: false,

            // behavior and appearance
            transition    : 'elastic',
            speed         : 300,
            fadeOut       : 300,
            width         : false,
            initialWidth  : '600',
            innerWidth    : false,
            maxWidth      : false,
            height        : false,
            initialHeight : '450',
            innerHeight   : false,
            maxHeight     : false,
            scalePhotos   : true,
            scrolling     : true,
            opacity       : 0.9,
            preloading    : true,
            className     : false,
            overlay       : true,
            overlayClose  : true,
            escKey        : true,
            arrowKey      : true,
            top           : false,
            bottom        : false,
            left          : false,
            right         : false,
            fixed         : false,
            data          : undefined,
            closeButton   : true,
            fastIframe    : true,
            open          : false,
            reposition    : true,
            loop          : true,
            slideshow     : false,
            slideshowAuto : true,
            slideshowSpeed: 2500,
            slideshowStart: 'start slideshow',
            slideshowStop : 'stop slideshow',
            photoRegex    : /\.(gif|png|jp(e|g|eg)|bmp|ico|webp|jxr|svg)((#|\?).*)?$/i,

            // alternate image paths for high-res displays
            retinaImage : false,
            retinaUrl   : false,
            retinaSuffix: '@2x.$1',

            // internationalization
            current : 'image {current} of {total}',
            previous: 'previous',
            next    : 'next',
            close   : 'close',
            xhrError: 'This content failed to load.',
            imgError: 'This image failed to load.',

            // accessibility
            returnFocus: true,
            trapFocus  : true,

            // callbacks
            onOpen    : false,
            onLoad    : false,
            onComplete: false,
            onCleanup : false,
            onClosed  : false,

            rel         : function() {
                return this.rel;
            },
            href        : function() {
                // using this.href would give the absolute url, when the href may have been intended as a selector (e.g. '#container')
                return $(this).attr('href');
            },
            title       : function() {
                return this.title;
            },
            createImg   : function() {
                var img   = new Image();
                var attrs = $(this).data(prefix + '-img-attrs');

                if (typeof attrs === 'object') {
                    $.each(attrs, function(key, val) {
                        img[key] = val;
                    });
                }

                return img;
            },
            createIframe: function() {
                var iframe = document.createElement('iframe');
                var attrs  = $(this).data(prefix + '-iframe-attrs');

                if (typeof attrs === 'object') {
                    $.each(attrs, function(key, val) {
                        iframe[key] = val;
                    });
                }

                // if ('scrolling' in iframe) {
                //     iframe.scrolling = 'no';
                // }
                if ('frameBorder' in iframe) {
                    iframe.frameBorder = 0;
                }
                if ('allowTransparency' in iframe) {
                    iframe.allowTransparency = 'true';
                }
                iframe.name            = (new Date()).getTime(); // give the iframe a unique name to prevent caching
                iframe.allowFullscreen = true;

                return iframe;
            }
        },

        // Abstracting the HTML and event identifiers for easy rebranding
        colorbox       = 'rl_modals',
        prefix         = 'rl_modals',
        boxElement     = $prefix('element'),

        // Events
        event_open     = $prefix('open'),
        event_load     = $prefix('load'),
        event_complete = $prefix('complete'),
        event_cleanup  = $prefix('cleanup'),
        event_closed   = $prefix('closed'),
        event_purge    = $prefix('purge'),

        // Cached jQuery Object Variables
        $overlay,
        $box,
        $wrap,
        $content,
        $topBorder,
        $leftBorder,
        $rightBorder,
        $bottomBorder,
        $related,
        $window,
        $loaded,
        $loadingBay,
        $loadingOverlay,
        $title,
        $current,
        $slideshow,
        $next,
        $prev,
        $close,
        $groupControls,
        $events        = $('<a/>'), // $({}) would be preferred, but there is an issue with jQuery 1.4.2

        // Variables for cached values or use across multiple functions
        settings,
        interfaceHeight,
        interfaceWidth,
        loadedHeight,
        loadedWidth,
        index,
        photo,
        open,
        active,
        closing,
        loadingTimer,
        publicMethod,
        div            = 'div',
        requests       = 0,
        previousCSS    = {},
        init;

    // ****************
    // HELPER FUNCTIONS
    // ****************

    // Adds prefix to a string
    function $prefix(string) {
        return prefix + '_' + string;
    }

    // Convenience function for creating new jQuery objects
    function $tag(tag, id, css) {
        var element = document.createElement(tag);

        if (id) {
            element.id = $prefix(id);
        }

        if (css) {
            element.style.cssText = css;
        }

        return $(element);
    }

    // Get the window height using innerHeight when available to avoid an issue with iOS
    // http://bugs.jquery.com/ticket/6724
    function winheight() {
        return window.innerHeight ? window.innerHeight : $(window).height();
    }

    // Helper to enumerate focusable elements
    function focusableEls($e) {
        return $e.find('a[href], area[href], input:not([disabled]), select:not([disabled]), textarea:not([disabled]), button:not([disabled]), [tabindex="0"]');
    }

    function firstFocusableEl($e) {
        return focusableEls($e).first();
    }

    function lastFocusableEl($e) {
        return focusableEls($e).last();
    }

    function Settings(element, options) {
        if (options !== Object(options)) {
            options = {};
        }

        this.cache = {};
        this.el    = element;

        this.value = function(key) {
            var dataAttr;

            if (this.cache[key] === undefined) {
                dataAttr = $(this.el).attr('data-' + prefix + '-' + key);

                if (dataAttr !== undefined) {
                    this.cache[key] = dataAttr;
                } else if (options[key] !== undefined) {
                    this.cache[key] = options[key];
                } else if (defaults[key] !== undefined) {
                    this.cache[key] = defaults[key];
                }
            }

            return this.cache[key];
        };

        this.get = function(key) {
            var value = this.value(key);
            return $.isFunction(value) ? value.call(this.el, this) : value;
        };
    }

    // Determine the next and previous members in a group.
    function getIndex(increment) {
        var
            max      = $related.length,
            newIndex = (index + increment) % max;

        return (newIndex < 0) ? max + newIndex : newIndex;
    }

    // Convert '%' and 'px' values to integers
    function setSize(size, dimension) {
        var size_int = parseInt(size, 10);

        // unit: %
        if (/%/.test(size)) {
            var window_size = dimension === 'x' ? $window.width() : winheight();

            return Math.round((window_size / 100) * size_int);
        }

        // unit: vw or vh
        if (/v[wh]$/.test(size)) {
            var unit        = size.match(/v[wh]$/)[0];
            var window_size = unit === 'vw' ? $window.width() : winheight();

            return Math.round((window_size / 100) * size_int);
        }

        // unit: px or none
        return Math.round(size_int);
    }

    // Checks an href to see if it is a photo.
    // There is a force photo option (photo: true) for hrefs that cannot be matched by the regex.
    function isImage(settings, url) {
        return settings.get('photo') || settings.get('photoRegex').test(url);
    }

    function retinaUrl(settings, url) {
        return settings.get('retinaUrl') && window.devicePixelRatio > 1 ? url.replace(settings.get('photoRegex'), settings.get('retinaSuffix')) : url;
    }

    function setClass(str) {
        if (setClass.str !== str) {
            $box.add($overlay).removeClass(setClass.str).addClass(str);
            setClass.str = str;
        }
    }

    function getRelated(rel) {
        index = 0;

        if (rel && rel !== false && rel !== 'nofollow') {
            $related = $('.' + boxElement).filter(function() {
                var options  = $.data(this, colorbox);
                var settings = new Settings(this, options);
                return (settings.get('rel') === rel);
            });
            index    = $related.index(settings.el);

            // Check direct calls to Colorbox.
            if (index === -1) {
                $related = $related.add(settings.el);
                index    = $related.length - 1;
            }
        } else {
            $related = $(settings.el);
        }
    }

    function trigger(event) {
        // for external use
        $(document).trigger(event);
        // for internal use
        $events.triggerHandler(event);
    }

    var slideshow = (function() {
        var active,
            className = $prefix('slideshow'),
            click     = 'click.' + prefix + ' rl_modals_touchstart.' + prefix,
            timeOut;

        function clear() {
            clearTimeout(timeOut);
        }

        function set() {
            if (settings.get('loop') || $related[index + 1]) {
                clear();
                timeOut = setTimeout(publicMethod.next, settings.get('slideshowSpeed'));
            }
        }

        function start() {
            $slideshow
                .html(settings.get('slideshowStop'))
                .attr('aria-label', settings.get('slideshowStop'))
                .unbind(click)
                .one(click, stop);

            $events
                .bind(event_complete, set)
                .bind(event_load, clear);

            $box.removeClass(className + '_off').addClass(className + '_on');
        }

        function stop() {
            clear();

            $events
                .unbind(event_complete, set)
                .unbind(event_load, clear);

            $slideshow
                .html(settings.get('slideshowStart'))
                .attr('aria-label', settings.get('slideshowStart'))
                .unbind(click)
                .one(click, function() {
                    publicMethod.next();
                    start();
                });

            $box.removeClass(className + 'on').addClass(className + 'off');
        }

        function reset() {
            active = false;
            $slideshow.attr('aria-hidden', 'true').hide();
            clear();
            $events
                .unbind(event_complete, set)
                .unbind(event_load, clear);
            $box.removeClass(className + 'off ' + className + 'on');
        }

        return function() {
            if (active) {
                if ( ! settings.get('slideshow')) {
                    $events.unbind(event_cleanup, reset);
                    reset();
                }
            } else {
                if (settings.get('slideshow') && $related[1]) {
                    active = true;
                    $events.one(event_cleanup, reset);
                    if (settings.get('slideshowAuto')) {
                        start();
                    } else {
                        stop();
                    }
                    $slideshow.attr('aria-hidden', 'false').show();
                }
            }
        };

    }());

    function launch(element) {
        var options;

        if ( ! closing) {

            options = $(element).data(colorbox);

            settings = new Settings(element, options);

            getRelated(settings.get('rel'));

            if ( ! open) {
                open = active = true; // Prevents the page-change action from queuing up if the visitor holds down the left or right keys.

                setClass(settings.get('className'));

                // Show colorbox so the sizes can be calculated in older versions of jQuery
                $box.css({visibility: 'hidden', display: 'block', opacity: ''}).attr('aria-hidden', 'true');

                $loaded = $tag(div, 'loaded_content', 'width:0; height:0; overflow:hidden; visibility:hidden');
                $content.css({width: '', height: ''}).append($loaded);

                // Cache values needed for size calculations
                interfaceHeight = $topBorder.height() + $bottomBorder.height() + $content.outerHeight(true) - $content.height();
                interfaceWidth  = $leftBorder.width() + $rightBorder.width() + $content.outerWidth(true) - $content.width();
                loadedHeight    = $loaded.outerHeight(true);
                loadedWidth     = $loaded.outerWidth(true);

                // Opens initial empty Colorbox prior to content being loaded.
                var initialWidth  = setSize(settings.get('initialWidth'), 'x');
                var initialHeight = setSize(settings.get('initialHeight'), 'y');
                var maxWidth      = settings.get('maxWidth');
                var maxHeight     = settings.get('maxHeight');

                settings.w = Math.max((maxWidth !== false ? Math.min(initialWidth, setSize(maxWidth, 'x')) : initialWidth) - loadedWidth - interfaceWidth, 0);
                settings.h = Math.max((maxHeight !== false ? Math.min(initialHeight, setSize(maxHeight, 'y')) : initialHeight) - loadedHeight - interfaceHeight, 0);

                $loaded.css({width: '', height: settings.h});
                publicMethod.position();

                trigger(event_open);
                settings.get('onOpen');

                $groupControls.add($title).hide();

                $box.attr('aria-hidden', 'false')
                    .attr('role', 'dialog')
                    .attr('aria-labelledby', $prefix('title'))
                    .attr('aria-describedby', $prefix('loaded_content'));

                // Return focus on closing
                if (settings.get('returnFocus')) {
                    $events.one(event_closed, function() {
                        $(settings.el).focus();
                    });
                }
            }

            var opacity = parseFloat(settings.get('opacity'));
            $overlay.css({
                opacity   : opacity === opacity ? opacity : '',
                cursor    : settings.get('overlayClose') ? 'pointer' : '',
                visibility: 'visible'
            });

            if (settings.get('overlay')) {
                $overlay.show();
            }

            if (settings.get('closeButton')) {
                $close.html(settings.get('close'))
                    .attr('aria-hidden', 'false')
                    .appendTo($content);
            } else {
                $close.appendTo('<div/>'); // replace with .detach() when dropping jQuery < 1.4
            }

            load();
        }
    }

    // Colorbox's markup needs to be added to the DOM prior to being called
    // so that the browser will go ahead and load the CSS background images.
    function appendHTML() {
        if ( ! $box) {
            init            = false;
            $window         = $(window);
            $box            = $tag(div).attr({
                'id'         : colorbox,
                'role'       : 'dialog',
                'tabindex'   : -1,
                'aria-hidden': 'true'
            }).hide();
            $overlay        = $tag(div, 'overlay').hide();
            $loadingOverlay = $([$tag(div, 'loading_overlay')[0], $tag(div, 'loading_graphic')[0]]);
            $wrap           = $tag(div, 'wrapper');
            $content        = $tag(div, 'content').append(
                $title = $tag(div, 'title')
                    .attr('aria-live', 'polite'),
                $current = $tag(div, 'current'),
                $prev = $('<button type="button">previous</button>').attr({
                    id           : $prefix('previous'),
                    'aria-hidden': 'true'
                }),
                $next = $('<button type="button">next</button>').attr({
                    id           : $prefix('next'),
                    'aria-hidden': 'true'
                }),
                $slideshow = $('<button type="button">start slideshow</button>').attr({
                    id           : $prefix('slideshow'),
                    'aria-hidden': 'true'
                }),
                $loadingOverlay
            );

            $close = $('<button type="button">close</button>').attr({
                id           : $prefix('close'),
                'aria-hidden': 'true'
            });

            $wrap.append( // The 3x3 Grid that makes up Colorbox
                $tag(div).append(
                    $tag(div, 'top_left'),
                    $topBorder = $tag(div, 'top_center'),
                    $tag(div, 'top_right')
                ),
                $tag(div, false, 'clear:left').append(
                    $leftBorder = $tag(div, 'middle_left'),
                    $content,
                    $rightBorder = $tag(div, 'middle_right')
                ),
                $tag(div, false, 'clear:left').append(
                    $tag(div, 'bottom_left'),
                    $bottomBorder = $tag(div, 'bottom_center'),
                    $tag(div, 'bottom_right')
                )
            ).find('div div').css({'float': 'left'});

            $loadingBay = $tag(div, false, 'position:absolute; width:9999px; visibility:hidden; display:none; max-width:none;');

            $groupControls = $next.add($prev).add($current).add($slideshow);
        }
        if (document.body && ! $box.parent().length) {
            $(document.body).append($overlay, $box.append($wrap, $loadingBay));
        }
    }

    // Add Colorbox's event bindings
    function addBindings() {
        function clickHandler(e) {
            // ignore non-left-mouse-clicks and clicks modified with ctrl / command, shift, or alt.
            // See: http://jacklmoore.com/notes/click-events/
            if ( ! (e.which > 1 || e.shiftKey || e.altKey || e.metaKey || e.ctrlKey)) {
                e.preventDefault();
                launch(this);
            }
        }

        if ($box) {
            if ( ! init) {
                init = true;

                // Anonymous functions here keep the public method from being cached, thereby allowing them to be redefined on the fly.
                $next.on('click rl_modals_touchstart', function() {
                    publicMethod.next();
                });
                $prev.on('click rl_modals_touchstart', function() {
                    publicMethod.prev();
                });
                $close.on('click rl_modals_touchstart', function() {
                    publicMethod.close();
                });
                $overlay.on('click rl_modals_touchstart', function() {
                    if (settings.get('overlayClose')) {
                        publicMethod.close();
                    }
                });

                // Key Bindings
                $(document).bind('keydown.' + prefix, function(e) {
                    var key = e.keyCode;
                    if (open && settings.get('escKey') && key === 27) {
                        e.preventDefault();
                        publicMethod.close();
                    }
                    if (open && settings.get('arrowKey') && $related[1] && ! e.altKey) {
                        if (key === 37) {
                            e.preventDefault();
                            $prev.click();
                        } else if (key === 39) {
                            e.preventDefault();
                            $next.click();
                        }
                    }
                    if (open && settings.get('trapFocus') && key === 9) {
                        if (focusableEls($box).length === 1) {
                            e.preventDefault();
                        } else {
                            if (e.shiftKey) {
                                if (document.activeElement === firstFocusableEl($box)[0]) {
                                    e.preventDefault();
                                    lastFocusableEl($box).focus();
                                }
                            } else {
                                if (document.activeElement === lastFocusableEl($box)[0]) {
                                    e.preventDefault();
                                    firstFocusableEl($box).focus();
                                }
                            }
                        }
                    }
                });

                if ($.isFunction($.fn.on)) {
                    // For jQuery 1.7+
                    $(document).on('click.' + prefix + ' rl_modals_touchstart.' + prefix, '.' + boxElement, clickHandler);
                } else {
                    // For jQuery 1.3.x -> 1.6.x
                    // This code is never reached in jQuery 1.9, so do not contact me about 'live' being removed.
                    // This is not here for jQuery 1.9, it's here for legacy users.
                    $('.' + boxElement).live('click.' + prefix + ' rl_modals_touchstart.' + prefix, clickHandler);
                }
            }
            return true;
        }
        return false;
    }

    // Don't do anything if Colorbox already exists.
    if ($[colorbox]) {
        return;
    }

    // Append the HTML when the DOM loads
    $(appendHTML);

    // ****************
    // PUBLIC FUNCTIONS
    // Usage format: jQuery.rl_modals.close();
    // Usage from within an iframe: parent.jQuery.rl_modals.close();
    // ****************

    publicMethod = $.fn[colorbox] = $[colorbox] = function(options, callback) {
        var settings;
        var $obj = this;

        options = options || {};

        if ($.isFunction($obj)) { // assume a call to $.colorbox
            $obj         = $('<a/>');
            options.open = true;
        }

        if ( ! $obj[0]) { // colorbox being applied to empty collection
            return $obj;
        }

        appendHTML();

        if (addBindings()) {

            if (callback) {
                options.onComplete = callback;
            }

            $obj.each(function() {
                var old = $.data(this, colorbox) || {};
                $.data(this, colorbox, $.extend(old, options));
            }).addClass(boxElement);

            settings = new Settings($obj[0], options);

            if (settings.get('open')) {
                launch($obj[0]);
            }
        }

        return $obj;
    };

    publicMethod.position = function(speed, loadedCallback) {
        var
            css,
            top    = 0,
            left   = 0,
            offset = $box.offset(),
            scrollTop,
            scrollLeft,
            paddingWidth,
            paddingHeight;

        $window.unbind('resize.' + prefix);

        // remove the modal so that it doesn't influence the document width/height
        $box.css({top: -9e4, left: -9e4});

        scrollTop     = $window.scrollTop();
        scrollLeft    = $window.scrollLeft();
        paddingWidth  = parseInt($loaded.css('padding-left')) + parseInt($loaded.css('padding-right'));
        paddingHeight = parseInt($loaded.css('padding-top')) + parseInt($loaded.css('padding-bottom'));

        if (settings.get('fixed')) {
            offset.top -= scrollTop;
            offset.left -= scrollLeft;
            $box.css({position: 'fixed'});
        } else {
            top  = scrollTop;
            left = scrollLeft;
            $box.css({position: 'absolute'});
        }

        // keeps the top and left positions within the browser's viewport.
        if (settings.get('right') !== false) {
            left += Math.max($window.width() - settings.w - paddingWidth - interfaceWidth - setSize(settings.get('right'), 'x'), 0);
        } else if (settings.get('left') !== false) {
            left += setSize(settings.get('left'), 'x');
        } else {
            left += Math.round(Math.max($window.width() - settings.w - paddingWidth - interfaceWidth, 0) / 2);
        }

        if (settings.get('bottom') !== false) {
            top += Math.max(winheight() - settings.h - loadedHeight - interfaceHeight - setSize(settings.get('bottom'), 'y'), 0);
        } else if (settings.get('top') !== false) {
            top += setSize(settings.get('top'), 'y');
        } else {
            top += Math.round(Math.max(winheight() - settings.h - loadedHeight - interfaceHeight, 0) / 2);
        }

        $box.css({top: offset.top, left: offset.left, visibility: 'visible'}).attr('aria-hidden', 'false');

        // this gives the wrapper plenty of breathing room so it's floated contents can move around smoothly,
        // but it has to be shrank down around the size of div#colorbox when it's done.  If not,
        // it can invoke an obscure IE bug when using iframes.
        $wrap[0].style.width = $wrap[0].style.height = '9999px';

        function modalDimensions() {
            $topBorder[0].style.width = $bottomBorder[0].style.width = $content[0].style.width = (parseInt($box[0].style.width, 10) - interfaceWidth) + 'px';
            $content[0].style.height  = $leftBorder[0].style.height = $rightBorder[0].style.height = (parseInt($box[0].style.height, 10) - interfaceHeight) + 'px';
        }

        css = {width: settings.w + paddingWidth + interfaceWidth, height: settings.h + loadedHeight + interfaceHeight, top: top, left: left};

        // setting the speed to 0 if the content hasn't changed size or position
        if (speed) {
            var tempSpeed = 0;
            $.each(css, function(i) {
                if (css[i] !== previousCSS[i]) {
                    tempSpeed = speed;
                }
            });
            speed = tempSpeed;
        }

        previousCSS = css;

        if ( ! speed) {
            $box.css(css);
        }

        $box.dequeue().animate(css, {
            duration: speed || 0,
            complete: function() {
                modalDimensions();

                active = false;

                // shrink the wrapper down to exactly the size of colorbox to avoid a bug in IE's iframe implementation.
                $wrap[0].style.width  = (settings.w + paddingWidth + interfaceWidth) + 'px';
                $wrap[0].style.height = (settings.h + loadedHeight + interfaceHeight) + 'px';

                if (settings.get('reposition')) {
                    $window.bind('resize.' + prefix, publicMethod.position);
                }

                if ($.isFunction(loadedCallback)) {
                    loadedCallback();
                }
            },
            step    : modalDimensions
        });
    };

    publicMethod.resize = function(options) {
        var scrolltop;

        if ( ! open) {
            return;
        }

        options = options || {};

        if (options.width) {
            settings.w = setSize(options.width, 'x') - loadedWidth - interfaceWidth;
        }

        if (options.innerWidth) {
            settings.w = setSize(options.innerWidth, 'x');
        }

        $loaded.css({width: settings.w});

        if (options.height) {
            settings.h = setSize(options.height, 'y') - loadedHeight - interfaceHeight;
        }

        if (options.innerHeight) {
            settings.h = setSize(options.innerHeight, 'y');
        }

        if ( ! options.innerHeight && ! options.height) {
            scrolltop = $loaded.scrollTop();
            $loaded.css({height: 'auto'});
            settings.h = $loaded.height();
        }

        $loaded.css({height: settings.h});

        if (scrolltop) {
            $loaded.scrollTop(scrolltop);
        }

        var transition = options.transition !== undefined ? options.transition : settings.get('transition');
        var speed      = options.speed !== undefined ? options.speed : settings.get('speed');

        publicMethod.position(transition === 'none' ? 0 : speed);
    };

    publicMethod.prep = function(object) {
        if ( ! open) {
            return;
        }

        var callback, speed = settings.get('transition') === 'none' ? 0 : settings.get('speed');

        $loaded.remove();

        $loaded = $tag(div, 'loaded_content').append(object);

        function getWidth() {
            settings.w = settings.w || $loaded.width();
            settings.w = settings.mw && settings.mw < settings.w ? settings.mw : settings.w;
            return settings.w;
        }

        function getHeight() {
            settings.h = settings.h || $loaded.height();
            settings.h = settings.mh && settings.mh < settings.h ? settings.mh : settings.h;
            return settings.h;
        }

        $loaded.hide()
            .appendTo($loadingBay.show())// content has to be appended to the DOM for accurate size calculations.
            .css({width: getWidth(), overflow: settings.get('scrolling') ? 'auto' : 'hidden'})
            .css({height: getHeight()})// sets the height independently from the width in case the new width influences the value of height.
            .prependTo($content);

        $loadingBay.hide();

        // floating the IMG removes the bottom line-height and fixed a problem where IE miscalculates the width of the parent element as 100% of the document width.

        $(photo).css({'float': 'none'});

        setClass(settings.get('className'));

        callback = function() {
            var total = $related.length,
                iframe,
                complete;

            if ( ! open) {
                return;
            }

            complete = function() {
                clearTimeout(loadingTimer);
                $loadingOverlay.hide();
                trigger(event_complete);
                settings.get('onComplete');
            };

            $title.html(settings.get('title')).show();
            $loaded.show();

            if (total > 1) { // handle grouping
                if (typeof settings.get('current') === 'string') {
                    $current.html(settings.get('current').replace('{current}', index + 1).replace('{total}', total))
                        .attr('aria-live', 'polite')
                        .show();
                }

                $showNext = (settings.get('loop') || index < total - 1);
                $next[$showNext ? 'show' : 'hide']()
                    .html(settings.get('next'))
                    .attr('aria-hidden', $showNext ? 'false' : 'true');
                $showPrev = (settings.get('loop') || index);
                $prev[$showPrev ? 'show' : 'hide']()
                    .html(settings.get('previous'))
                    .attr('aria-hidden', $showPrev ? 'false' : 'true');

                if ( ! ($prev.is(':focus') || $next.is(':focus') || $close.is(':focus'))) {
                    if ($showPrev) {
                        $prev.focus();
                    } else if ($showNext) {
                        $next.focus();
                    } else {
                        $close.focus();
                    }
                }

                slideshow();

                // Preloads images within a rel group
                if (settings.get('preloading')) {
                    $.each([getIndex(-1), getIndex(1)], function() {
                        var img,
                            i        = $related[this],
                            settings = new Settings(i, $.data(i, colorbox)),
                            src      = settings.get('href');

                        if (src && isImage(settings, src)) {
                            src     = retinaUrl(settings, src);
                            img     = document.createElement('img');
                            img.src = src;
                        }
                    });
                }
            } else {
                $groupControls.hide();
            }

            if (settings.get('iframe')) {

                iframe = settings.get('createIframe');

                if ( ! settings.get('scrolling')) {
                    iframe.scrolling = 'no';
                }

                $(iframe)
                    .attr({
                        src    : settings.get('href'),
                        'class': $prefix('iframe')
                    })
                    .one('load', complete)
                    .appendTo($loaded);

                $events.one(event_purge, function() {
                    iframe.src = '//about:blank';
                });

                if (settings.get('fastIframe')) {
                    $(iframe).trigger('load');
                }
            } else {
                complete();
            }
        };

        if (settings.get('transition') === 'fade') {
            $box.fadeTo(speed, 0, function() {
                publicMethod.position(0, callback);
            });
        } else {
            publicMethod.position(speed, callback);
        }
    };

    function load() {
        var href, setResize, prep = publicMethod.prep, $inline, request = ++requests;

        active = true;

        photo = false;

        trigger(event_purge);
        trigger(event_load);
        settings.get('onLoad');

        settings.h = settings.get('height') ?
            setSize(settings.get('height'), 'y') - loadedHeight - interfaceHeight :
            settings.get('innerHeight') && setSize(settings.get('innerHeight'), 'y');

        settings.w = settings.get('width') ?
            setSize(settings.get('width'), 'x') - loadedWidth - interfaceWidth :
            settings.get('innerWidth') && setSize(settings.get('innerWidth'), 'x');

        // Sets the minimum dimensions for use in image scaling
        settings.mw = settings.w;
        settings.mh = settings.h;

        // Re-evaluate the minimum width and height based on maxWidth and maxHeight values.
        // If the width or height exceed the maxWidth or maxHeight, use the maximum values instead.
        if (settings.get('maxWidth')) {
            settings.mw = setSize(settings.get('maxWidth'), 'x') - loadedWidth - interfaceWidth;
            settings.mw = settings.w && settings.w < settings.mw ? settings.w : settings.mw;
        }
        if (settings.get('maxHeight')) {
            settings.mh = setSize(settings.get('maxHeight'), 'y') - loadedHeight - interfaceHeight;
            settings.mh = settings.h && settings.h < settings.mh ? settings.h : settings.mh;
        }

        href = settings.get('href');

        loadingTimer = setTimeout(function() {
            $loadingOverlay.show();
        }, 100);

        if (settings.get('inline')) {
            var $target = $(href).eq(0);
            // Inserts an empty placeholder where inline content is being pulled from.
            // An event is bound to put inline content back when Colorbox closes or loads new content.
            $inline = $('<div>').hide().insertBefore($target);

            $events.one(event_purge, function() {
                $inline.replaceWith($target);
            });

            prep($target);
        } else if (settings.get('iframe')) {
            // IFrame element won't be added to the DOM until it is ready to be displayed,
            // to avoid problems with DOM-ready JS that might be trying to run in that iframe.
            prep(' ');
        } else if (settings.get('html')) {
            prep(settings.get('html'));
        } else if (isImage(settings, href)) {

            href = retinaUrl(settings, href);

            photo = settings.get('createImg');

            $(photo)
                .addClass($prefix('photo'))
                .bind('error.' + prefix, function() {
                    prep($tag(div, 'error').html(settings.get('imgError')));
                })
                .one('load', function() {
                    if (request !== requests) {
                        return;
                    }

                    // A small pause because some browsers will occasionally report a
                    // img.width and img.height of zero immediately after the img.onload fires
                    setTimeout(function() {
                        var percent;

                        if (settings.get('retinaImage') && window.devicePixelRatio > 1) {
                            photo.height = photo.height / window.devicePixelRatio;
                            photo.width  = photo.width / window.devicePixelRatio;
                        }

                        if (settings.get('scalePhotos')) {
                            setResize = function() {
                                photo.height -= photo.height * percent;
                                photo.width -= photo.width * percent;
                            };
                            if (settings.mw && photo.width > settings.mw) {
                                percent = (photo.width - settings.mw) / photo.width;
                                setResize();
                            }
                            if (settings.mh && photo.height > settings.mh) {
                                percent = (photo.height - settings.mh) / photo.height;
                                setResize();
                            }
                        }

                        if (settings.h) {
                            photo.style.marginTop = Math.max(settings.mh - photo.height, 0) / 2 + 'px';
                        }

                        if ($related[1] && (settings.get('loop') || $related[index + 1])) {
                            photo.style.cursor = 'pointer';

                            $(photo).bind('click.' + prefix + ' rl_modals_touchstart.' + prefix, function() {
                                publicMethod.next();
                            });
                        }

                        photo.style.width  = photo.width + 'px';
                        photo.style.height = photo.height + 'px';
                        prep(photo);
                    }, 1);
                });

            photo.src = href;

        } else if (href) {
            $loadingBay.load(href, settings.get('data'), function(data, status) {
                if (request === requests) {
                    prep(status === 'error' ? $tag(div, 'error').html(settings.get('xhrError')) : $(this).contents());
                }
            });
        }
    }

    // Navigates to the next page/image in a set.
    publicMethod.next = function() {
        if ( ! active && $related[1] && (settings.get('loop') || $related[index + 1])) {
            index = getIndex(1);
            launch($related[index]);
        }
    };

    publicMethod.prev = function() {
        if ( ! active && $related[1] && (settings.get('loop') || index)) {
            index = getIndex(-1);
            launch($related[index]);
        }
    };

    // Note: to use this within an iframe use the following format: parent.jQuery.colorbox.close();
    publicMethod.close = function() {
        if (open && ! closing) {

            closing = true;
            open    = false;
            trigger(event_cleanup);
            settings.get('onCleanup');
            $window.unbind('.' + prefix);
            $overlay.fadeTo(settings.get('fadeOut') || 0, 0);

            $box.stop().fadeTo(settings.get('fadeOut') || 0, 0, function() {
                $box.hide().attr('aria-hidden', 'true')
                    .attr('role', '')
                    .attr('aria-labelledby', '')
                    .attr('aria-describedby', '');
                $overlay.hide();
                trigger(event_purge);
                $loaded.remove();

                setTimeout(function() {
                    closing = false;
                    trigger(event_closed);
                    settings.get('onClosed');
                }, 1);
            });
        }
    };

    // Removes changes Colorbox made to the document, but does not remove the plugin.
    publicMethod.remove = function() {
        if ( ! $box) {
            return;
        }

        $box.stop();
        $[colorbox].close();
        $box.stop(false, true).remove();
        $overlay.remove();
        closing = false;
        $box    = null;
        $('.' + boxElement)
            .removeData(colorbox)
            .removeClass(boxElement);

        $(document).unbind('click.' + prefix + ' rl_modals_touchstart.' + prefix).unbind('keydown.' + prefix);
    };

    // A method for fetching the current element Colorbox is referencing.
    // returns a jQuery object.
    publicMethod.element = function() {
        return $(settings.el);
    };

    publicMethod.settings = defaults;

    $.event.special.rl_modals_touchstart = {
        setup: function(data, namespaces, eventHandle) {
            this.addEventListener('touchstart', eventHandle, {passive: false});
        }
    };
}(jQuery, document, window));