!function($, window, document, _undefined)
{
"use strict";

XF.Lightbox = XF.Element.newHandler({
options: {
lbInfobar: 1,
lbSlideShow: 1,
lbThumbsAuto: 1,
lbUniversal: 0,
lbTrigger: '.js-lbImage',
lbContainer: '.js-lbContainer',
lbHistory: 0,
lbPrev: null,
lbNext: null,
},

$sidebar: null,

initialUrl: null,
prevUrl: null,
nextUrl: null,

thumbsInitialized: false,

lastIndex: null,

isJumping: false,

pushStateCount: 0,

init: function()
{
this.initContainers();

$(document).on('xf:reinit', XF.proxy(this, 'checkReInit'));

$(document).on('click', 'a.js-lightboxCloser', function(e)
{
var $closer = $(e.target),
$toolbar = XF.findRelativeIf('< .fancybox-inner | .fancybox-toolbar', $closer);

$toolbar.find('[data-fancybox-close]').click();
});
},

getInstance: function()
{
return $.fancybox.getInstance();
},

handlePopstate: function(state)
{
if (!this.options.lbHistory)
{
return;
}

var instance = this.getInstance();
this.pushStateCount--;

if (state && typeof state === 'object' && state.hasOwnProperty('slide_src'))
{
this.isJumping = true;

if (instance)
{
var index = instance.findIndexFromSrc(state.slide_src);
if (index !== null)
{
instance.jumpTo(index);
}
}
}
else if (instance)
{
this.pushStateCount = 0; // make sure we prevent any navigation
instance.close();
}
},

initContainers: function()
{
var $containers = this.options.lbUniversal ? this.$target : this.$target.find(this.options.lbContainer);
var self = this;

$containers.each(function()
{
self._initContainer($(this));
});
},

_initContainer: function($container)
{
if ($container.data('lbInitialized'))
{
return;
}

$container.data('lbInitialized', true);

var t = this;

$container.find(this.options.lbTrigger).on('click.xflbtrigger mousedown.xflbtrigger', function(e)
{
var $target = $(e.target).parent(), open;

if (e.type === 'mousedown')
{
open = e.which === 2;
}
else
{
open = (e.ctrlKey || e.altKey || e.metaKey || e.shiftKey);
}

if (open && t.isSingleImage($target))
{
// stop the LB from triggering
e.stopImmediatePropagation();

window.open($target.data('src'), '_blank');
}

return true;
});

$container.find(t.options.lbTrigger).each(function()
{
var $target = $(this);
$target.on('lightbox:image-checked', XF.proxy(t, 'imageChecked'));
t.checkImageSizes($target, $container);
});

var config = $.extend(this.getConfig($container), {
selector: this.options.lbTrigger + '[data-fancybox="' + this.getContainerId($container) + '"]'
});

$container.fancybox(config);

$container.on('lightbox:init', XF.proxy(this, 'onInit'));
$container.on('lightbox:activate', XF.proxy(this, 'onActivate'));
$container.on('lightbox:after-load', XF.proxy(this, 'afterLoad'));
$container.on('lightbox:before-show', XF.proxy(this, 'beforeShow'));
$container.on('lightbox:after-show', XF.proxy(this, 'afterShow'));
$container.on('lightbox:before-close', XF.proxy(this, 'beforeClose'));
$container.on('lightbox:after-close', XF.proxy(this, 'afterClose'));
},

checkReInit: function(e, el)
{
if (el == document)
{
return;
}

if (!this.$target.find(el).length)
{
return;
}

var $el = $(el),
lbTrigger = this.options.lbTrigger,
lbContainer = this.options.lbContainer;

if (this.options.lbUniversal)
{
if ($el.is(lbTrigger) || $el.find(lbTrigger).length)
{
// reinit the one container we have
this._reInitContainer(this.$target);
}
}
else if ($el.is(lbContainer) || $el.find(lbContainer).length)
{
// new container, reinit all to pick this one up
this.initContainers();
}
else if ($el.closest(lbContainer).length && ($el.is(lbTrigger) || $el.find(lbTrigger).length))
{
// should be an existing container but a new image
this._reInitContainer($el.closest(lbContainer));
}
},

_reInitContainer: function($container)
{
if (!$container.data('lbInitialized'))
{
return;
}

var instance = this.getInstance();
if (instance)
{
instance.close();
}

$container.removeData('lbInitialized');

$container.off('onThumbsShow.fb');
$container.off('onThumbsHide.fb');
this.thumbsInitialized = false;

$container.off('lightbox:init');
$container.off('lightbox:activate');
$container.off('lightbox:before-show');
$container.off('lightbox:after-show');
$container.off('lightbox:before-close');
$container.off('lightbox:after-close');

this._initContainer($container);
},

initSidebar: function(loading)
{
var instance = this.getInstance();
if (!instance)
{
return;
}

var $fbContainer = instance.$refs.container, $sidebar;

if (this.$sidebar)
{
if (loading)
{
this.$sidebar.addClass('is-loading');
}
}
else
{
$sidebar = $('<div />')
.html('<div class="fancybox-sidebar-content"></div><div class="fancybox-sidebar-loader"><i class="fa--xf fa' + XF.config.fontAwesomeWeight + ' fa-spinner-third fa-4x"></i></div>')
.addClass('fancybox-sidebar')
.addClass(loading ? 'is-loading' : '');

this.$sidebar = $sidebar;

this.$sidebar.appendTo($fbContainer);

var $toggle = $fbContainer.find('.fancybox-button[data-fancybox-sidebartoggle]');
$toggle.off('click.lbSidebar').on('click.lbSidebar', XF.proxy(this, 'toggleSidebar'));

$(window).on('resize.lbSidebar', XF.proxy(this, 'sidebarCheckSize'));
}

$fbContainer.addClass('fancybox-has-sidebar');

if (this.isSidebarEnabled())
{
this.$sidebar.addClass('is-active');
$fbContainer.addClass('fancybox-show-sidebar');
}

this.sidebarCheckSize();
},

isSidebarEnabled: function()
{
return (
!XF.LocalStorage.get('lbSidebarDisabled')
&& XF.Breakpoint.isAtOrWiderThan('full')
);
},

setIsSidebarEnabled: function(enabled)
{
if (enabled)
{
XF.LocalStorage.remove('lbSidebarDisabled');
}
else
{
XF.LocalStorage.set('lbSidebarDisabled', '1', true);
}
},

toggleSidebar: function()
{
var wasActive = this.$sidebar.hasClass('is-active');
if (wasActive)
{
this.closeSidebar(false);
}
else
{
this.openSidebar(false);
}
},

openSidebar: function(bypassStorage)
{
var instance = this.getInstance(),
$fbContainer = instance.$refs.container;

this.$sidebar.addClass('is-active');
$fbContainer.addClass('fancybox-show-sidebar');

if (!bypassStorage)
{
this.setIsSidebarEnabled(true);
}

instance.update();
},

closeSidebar: function(bypassStorage)
{
if (!this.$sidebar)
{
return;
}

var instance = this.getInstance(),
$fbContainer = instance.$refs.container;

this.$sidebar.removeClass('is-active');
$fbContainer.removeClass('fancybox-show-sidebar');

if (!bypassStorage)
{
this.setIsSidebarEnabled(false);
}

instance.update();
},

sidebarCheckSize: function()
{
var instance = this.getInstance(),
$fbContainer = instance.$refs.container;

if (XF.Breakpoint.isAtOrNarrowerThan('medium'))
{
$fbContainer.removeClass('fancybox-has-sidebar');
this.closeSidebar(true);
}
else
{
$fbContainer.addClass('fancybox-has-sidebar');
}
},

initThumbs: function()
{
var instance = this.getInstance(), t = this, scrollbarHeight;
if (!instance)
{
return;
}

if (!this.thumbsInitialized)
{
if (this.options.lbThumbsAuto)
{
scrollbarHeight = this.measureThumbsScrollbar();
this.setThumbsScrollbarOffset(scrollbarHeight);
}

instance.$refs.container.off('onThumbsShow.fb').on('onThumbsShow.fb', function()
{
scrollbarHeight = t.measureThumbsScrollbar();
t.setThumbsScrollbarOffset(scrollbarHeight);
});
instance.$refs.container.off('onThumbsHide.fb').on('onThumbsHide.fb', function()
{
t.setThumbsScrollbarOffset(0);
});

this.thumbsInitialized = true;
}
},

measureThumbsScrollbar: function()
{
var instance = this.getInstance();
if (!instance || !instance.Thumbs || !instance.Thumbs.isActive)
{
return 0;
}

return XF.measureScrollBar(instance.Thumbs.$grid, 'height');
},

setThumbsScrollbarOffset: function(height)
{
var instance = this.getInstance();
if (!instance || !instance.Thumbs || !instance.Thumbs.isActive)
{
return;
}

instance.$refs.caption.css('padding-bottom', height + 'px');
},

updateLastIndex: function()
{
var instance = this.getInstance(), slides;
if (!instance)
{
return;
}

slides = Object.keys(instance.group);
this.lastIndex = parseInt(slides[slides.length - 1]);
},

onInit: function(e, $container, instance)
{
this.updateLastIndex();

this.prevUrl = this.options.lbPrev;
this.nextUrl = this.options.lbNext;

this.thumbsInitialized = false;
},

onActivate: function()
{
XF.Modal.open();
XF.Lightbox.activeLb = this;
},

afterLoad: function(e, $container, instance, slide)
{
if (slide.type === 'ajax')
{
var $content = slide.$content,
$embedContent = $content.find('.js-embedContent'),
state = {};

if ($embedContent.length)
{
state[$embedContent.data('media-site-id')] = true;
XF.applyJsState(XF.config.jsState, state);

slide.$slide
.removeClass('fancybox-slide--video')
.addClass('fancybox-slide--embed');
}

XF.activate($content);
}
},

beforeShow: function(e, $container, instance, slide)
{
XF.hideOverlays();
XF.hideTooltips();

var $trigger = slide.opts.$orig;
if ($trigger)
{
var $fbContainer = instance.$refs.container;

if ($trigger.data('lb-sidebar') || $trigger.data('lb-sidebar-href'))
{
this.initSidebar(true);
}
else
{
$fbContainer.removeClass('fancybox-has-sidebar');
this.closeSidebar(true);
}

if ($trigger.data('lb-type-override'))
{
slide.contentType = $trigger.data('lb-type-override');
}
}

this.initThumbs();
},

afterShow: function(e, $container, instance, slide)
{
var $trigger = slide.opts.$orig,
$fbContainer = instance.$refs.container,
t = this,
srcHref,
sidebarHref;

if ($trigger)
{
srcHref = $trigger.attr('href') || slide.src;
}
else
{
srcHref = slide.src;
}

var $toolbar = instance.$refs.toolbar;
$toolbar.find('[data-fancybox-nw]')
.attr('href', srcHref)
.attr('target', '_blank');

if (this.options.lbHistory && !this.isJumping)
{
XF.History.push({ slide_src: slide.src }, null, srcHref);

this.pushStateCount++;
}

this.isJumping = false;

if (
($trigger.data('lb-sidebar') || $trigger.data('lb-sidebar-href'))
&& $fbContainer.hasClass('fancybox-has-sidebar')
)
{
if ($trigger)
{
sidebarHref = $trigger.data('lb-sidebar-href') || srcHref
}
else
{
sidebarHref = srcHref
}

XF.ajax(
'get', sidebarHref, { lightbox: true },
function(data) { t.sidebarLoaded(data); },
{
skipDefault: true,
skipError: true,
global: false
}
);
}

if (slide.index === this.lastIndex && this.nextUrl)
{
XF.ajax(
'get', this.nextUrl, { lightbox: true },
function(data) { t.nextLoaded(data); },
{
skipDefault: true,
skipError: true,
global: false
}
);
}
else if (slide.index === 0 && this.prevUrl)
{
XF.ajax(
'get', this.prevUrl, { lightbox: true },
function(data) { t.prevLoaded(data); },
{
skipDefault: true,
skipError: true,
global: false
}
);
}
},

sidebarLoaded: function(data)
{
if (!data.html || !this.$sidebar)
{
return;
}

var t = this;

XF.setupHtmlInsert(data.html, function($html, container, onComplete)
{
if (t.$sidebar)
{
t.$sidebar.find('.fancybox-sidebar-content').html($html);
t.$sidebar.removeClass('is-loading');
}
});
},

prevLoaded: function(data)
{
if (!data.html)
{
this.prevUrl = null; //likely no more items to show
return;
}

var t = this,
instance = this.getInstance();

if (!instance)
{
return;
}

XF.setupHtmlInsert(data.html, function($html, container, onComplete)
{
var $container = $html.find(t.options.lbContainer);

$container.find(t.options.lbTrigger).reverse().each(function()
{
var $trigger = $(this);
t.updateCaption($trigger);
instance.prependContent($trigger);
instance.reindexSlides();

var currIndex = instance.currIndex,
prevIndex = instance.prevIndex;

currIndex++;
prevIndex++;

instance.currIndex = currIndex;
instance.currPos = currIndex;
instance.current.index = currIndex;
instance.current.pos = currIndex;

instance.prevIndex = prevIndex;
instance.prevPos = prevIndex;
});

instance.update();
instance.Thumbs.update();
t.updateLastIndex();

t.prevUrl = $container.data('lb-prev');

onComplete(true);
});
},

nextLoaded: function(data)
{
if (!data.html)
{
this.nextUrl = null; //likely no more items to show
return;
}

var t = this,
instance = this.getInstance();

if (!instance)
{
return;
}

XF.setupHtmlInsert(data.html, function($html, container, onComplete)
{
var $container = $html.find(t.options.lbContainer);

$container.find(t.options.lbTrigger).each(function()
{
var $trigger = $(this);
t.updateCaption($trigger);
instance.addContent($trigger);
});

t.updateLastIndex();

t.nextUrl = $container.data('lb-next');

onComplete(true);
});
},

beforeClose: function(e, $container, instance, slide)
{
if (this.options.lbHistory)
{
if (this.pushStateCount)
{
XF.History.go(-this.pushStateCount);
this.pushStateCount = 0;
}
}

if (this.$sidebar)
{
this.$sidebar.remove();
this.$sidebar = null;
$(window).off('resize.lbSidebar');
}
},

afterClose: function()
{
XF.Modal.close();
XF.Lightbox.activeLb = null;
},

getContainerId: function($container)
{
return 'lb-' + $container.data('lb-id');
},

imageChecked: function(e, $target, $container, $image)
{
var include = true;

if ($image && this.isImageNaturalSize($image))
{
include = false;
}

if (include)
{
$target.attr('data-fancybox', this.getContainerId($container));
$target.css('cursor', 'pointer');
this.updateCaption($target);
}
},

checkImageSizes: function($target, $container)
{
var event = $.Event('lightbox:image-checked');

if (this.isSingleImage($target))
{
var $image = $target.find('img[data-zoom-target=1]');

if ($image.parents('a').length)
{
// embedded inside a link so ignore lightbox entirely
return;
}

// timeout to allow animations to finish (e.g. quick edit)
setTimeout(function()
{
if (!$image.prop('complete'))
{
$image.on('load', function()
{
$target.trigger(event, [$target, $container, $image]);
});
}
else
{
$target.trigger(event, [$target, $container, $image]);
}
}, 500);
}
else
{
$target.trigger(event, [$target, $container]);
}
},

isImageNaturalSize: function($image)
{
var dims = {
width: $image.width(),
height: $image.height(),
naturalWidth: $image.prop('naturalWidth'),
naturalHeight: $image.prop('naturalHeight')
};

if (!dims.naturalWidth || !dims.naturalHeight)
{
// could be a failed image, ignore
return true;
}

return dims.width == dims.naturalWidth
&& dims.height == dims.naturalHeight;
},

isSingleImage: function($target)
{
return $target.is('div') && $target.data('single-image');
},

updateCaption: function($target)
{
if ($target.data('caption'))
{
return;
}

var $closestContainer = $target.closest(this.options.lbContainer);

var template = '<h4>{{title}}</h4><p><a href="{{href}}" class="js-lightboxCloser">{{desc}}</a>{{{extra_html}}}</p>',
$image = $target.find('img'),
lbId = $closestContainer.data('lb-id'),
caption = {
title: $closestContainer.data('lb-caption-title') || $image.attr('alt') || $image.attr('title') || '',
desc: $target.data('lb-caption-desc') || $closestContainer.data('lb-caption-desc') || '',
href: $target.data('lb-caption-href') || (lbId ? (window.location.href.replace(/#.*$/,'') + '#' + lbId) : null),
extra_html: $target.data('lb-caption-extra-html') || ''
};

$target.attr('data-caption', Mustache.render(template, caption));
},

getConfig: function($container)
{
return {
hash: false,
lang: 'xf',
i18n: {
xf: this.getLanguage()
},
loop: !(
this.options.lbPrev || this.options.lbNext
),
wheel: false,
closeExisting: true,
smallBtn: false,
buttons: [
'zoom',
'newWindow',
'fullScreen',
'slideShow',
'download',
'thumbs',
'close',
'sidebarToggle'
],
btnTpl: {
zoom: '<button data-fancybox-zoom class="fancybox-button fancybox-button--zoom" title="{{ZOOM}}"><i></i><i></i></button>',
newWindow: '<a data-fancybox-nw class="fancybox-button fancybox-button--nw" title="{{NEW_WINDOW}}" href="javascript:;"><i></i></a>',
fullScreen: '<button data-fancybox-fullscreen class="fancybox-button fancybox-button--fsenter" title="{{FULL_SCREEN}}"><i></i><i></i></button>',
slideShow: '<button data-fancybox-play class="fancybox-button fancybox-button--play" title="{{PLAY_START}}"><i></i><i></i></button>',
download: '<a download data-fancybox-download class="fancybox-button fancybox-button--download" title="{{DOWNLOAD}}" href="javascript:;"><i></i></a>',
thumbs: '<button data-fancybox-thumbs class="fancybox-button fancybox-button--thumbs" title="{{THUMBS}}"><i></i></button>',
close: '<button data-fancybox-close class="fancybox-button fancybox-button--close" title="{{CLOSE}}"><i></i></button>',
sidebarToggle: '<div class="fancybox-sidebartoggle"><button data-fancybox-sidebartoggle class="fancybox-button fancybox-button--sidebartoggle" title="{{SIDEBAR_TOGGLE}}"><i></i></button></div>',
arrowLeft: '<button data-fancybox-prev class="fancybox-button fancybox-button--arrow_left" title="{{PREV}}"><i></i></button>',
arrowRight: '<button data-fancybox-next class="fancybox-button fancybox-button--arrow_right" title="{{NEXT}}"><i></i></button>'

},
slideShow: this.options.lbSlideShow ? {
autoStart: false,
speed: 3000
} : false,
thumbs: {
autoStart: this.options.lbThumbsAuto ? true : false,
axis: 'x'
},
video: {
autoStart: false
},
infobar: this.options.lbInfobar,

onInit: function(instance)
{
var event = $.Event('lightbox:init');
$container.trigger(event, [$container, instance]);
},

beforeLoad: function(instance, slide)
{
var event = $.Event('lightbox:before-load');
$container.trigger(event, [$container, instance, slide]);
},

afterLoad: function(instance, slide)
{
var event = $.Event('lightbox:after-load');
$container.trigger(event, [$container, instance, slide]);
},

beforeShow: function(instance, slide)
{
var event = $.Event('lightbox:before-show');
$container.trigger(event, [$container, instance, slide]);
},

afterShow: function(instance, slide)
{
var event = $.Event('lightbox:after-show');
$container.trigger(event, [$container, instance, slide]);
},

beforeClose: function(instance, slide)
{
var event = $.Event('lightbox:before-close');
$container.trigger(event, [$container, instance, slide]);
},

afterClose: function(instance, slide)
{
var event = $.Event('lightbox:after-close');
$container.trigger(event, [$container, instance, slide]);
},

onActivate: function(instance)
{
var event = $.Event('lightbox:activate');
$container.trigger(event, [$container, instance]);
},

onDeactivate: function(instance)
{
var event = $.Event('lightbox:deactivate');
$container.trigger(event, [$container, instance]);
}
};
},

getLanguage: function()
{
return {
CLOSE: XF.phrase('lightbox_close'),
NEXT: XF.phrase('lightbox_next'),
PREV: XF.phrase('lightbox_previous'),
ERROR: XF.phrase('lightbox_error'),
PLAY_START: XF.phrase('lightbox_start_slideshow'),
PLAY_STOP: XF.phrase('lightbox_stop_slideshow'),
FULL_SCREEN: XF.phrase('lightbox_full_screen'),
THUMBS: XF.phrase('lightbox_thumbnails'),
DOWNLOAD: XF.phrase('lightbox_download'),
SHARE: XF.phrase('lightbox_share'),
ZOOM: XF.phrase('lightbox_zoom'),
NEW_WINDOW: XF.phrase('lightbox_new_window'),
SIDEBAR_TOGGLE: XF.phrase('lightbox_toggle_sidebar')
};
}
});
XF.Lightbox.activeLb = null;

// Allow deferred loading of this script to enable the lightbox on the container element if needed.
$(document).on('xf:reinit', function(e, el)
{
if (el == document)
{
return;
}

var $lbContainer = $(el).closest('[data-xf-init~=lightbox]');
if (!$lbContainer.length)
{
return;
}

var lbHandler = XF.Element.getHandler($lbContainer, 'lightbox');
if (lbHandler)
{
// already initialized, will handle itself
return;
}

// setTimeout to prevent a double reinit
setTimeout(function()
{
XF.Element.initializeElement($lbContainer);
}, 0);
});

XF.History.handle(function(state)
{
var activeLb = XF.Lightbox.activeLb;
if (activeLb)
{
activeLb.handlePopstate(state);
return true;
}
});

XF.Element.register('lightbox', 'XF.Lightbox');
}
(jQuery, window, document);