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./src/js/util/dom.js\n// This is not really a perfect check, but works fine.\n// From http://stackoverflow.com/questions/384286\nconst HAS_DOM_2 = typeof HTMLElement === \"object\";\nconst HAS_SHADOW = typeof ShadowRoot !== \"undefined\";\n\n/**\n * Determines whether an object is a DOM element or not.\n * @param {!Object} obj Object to check\n * @return {boolean} True if object is an element\n */\nfunction isDOMElement(obj) {\n  if (HAS_SHADOW && obj instanceof ShadowRoot) {\n    return true;\n  }\n  return HAS_DOM_2\n    ? obj instanceof HTMLElement\n    : obj &&\n        typeof obj === \"object\" &&\n        obj !== null &&\n        obj.nodeType === 1 &&\n        typeof obj.nodeName === \"string\";\n}\n\n/**\n * Adds an array of classes to an element\n * @param {!Element} el Element to add classes to\n * @param {!Array<!string>} classNames Class names to add\n * @return {void}\n */\nfunction addClasses(el, classNames) {\n  classNames.forEach(function(className) {\n    el.classList.add(className);\n  });\n}\n\n/**\n * Removes an array of classes from an element\n * @param {!Element} el Element to remove classes from\n * @param {!Array<!string>} classNames Classes to remove\n * @return {void}\n */\nfunction removeClasses(el, classNames) {\n  classNames.forEach(function(className) {\n    el.classList.remove(className);\n  });\n}\n\n// CONCATENATED MODULE: ./src/js/injectBaseStylesheet.js\n/* UNMINIFIED RULES\n\n@keyframes lum-noop {\n  0% { zoom: 1; }\n}\n\n.lum-lightbox {\n  position: fixed;\n  display: none;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n}\n\n.lum-lightbox.lum-open {\n  display: block;\n}\n\n.lum-lightbox.lum-opening, .lum-lightbox.lum-closing {\n  animation: lum-noop 1ms;\n}\n\n.lum-lightbox-inner {\n  position: absolute;\n  top: 0%;\n  right: 0%;\n  bottom: 0%;\n  left: 0%;\n\n  overflow: hidden;\n}\n\n.lum-lightbox-loader {\n  display: none;\n}\n\n.lum-lightbox-inner img {\n  max-width: 100%;\n  max-height: 100%;\n}\n\n.lum-lightbox-image-wrapper {\n  vertical-align: middle;\n  display: table-cell;\n  text-align: center;\n}\n*/\n\nconst RULES = `@keyframes lum-noop{0%{zoom:1}}.lum-lightbox{position:fixed;display:none;top:0;right:0;bottom:0;left:0}.lum-lightbox.lum-open{display:block}.lum-lightbox.lum-closing,.lum-lightbox.lum-opening{animation:lum-noop 1ms}.lum-lightbox-inner{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden}.lum-lightbox-loader{display:none}.lum-lightbox-inner img{max-width:100%;max-height:100%}.lum-lightbox-image-wrapper{vertical-align:middle;display:table-cell;text-align:center}`;\n\n/**\n * Injects the base stylesheet needed to display the lightbox\n * element.\n * If `node` is the document, the stylesheet will be appended to `<head>`.\n * @param {!Node} node Node to append stylesheet to\n * @return {void}\n */\nfunction injectBaseStylesheet(node) {\n  if (!node || node === document) {\n    node = document.head;\n  }\n\n  if (node.querySelector(\".lum-base-styles\")) {\n    return;\n  }\n\n  const styleEl = document.createElement(\"style\");\n  styleEl.type = \"text/css\";\n  styleEl.classList.add(\"lum-base-styles\");\n\n  styleEl.appendChild(document.createTextNode(RULES));\n\n  node.insertBefore(styleEl, node.firstChild);\n}\n\n// CONCATENATED MODULE: ./src/js/util/throwIfMissing.js\n/**\n * Throws a missing parameter error\n */\nfunction throwIfMissing() {\n  throw new Error(\"Missing parameter\");\n}\n\n// CONCATENATED MODULE: ./src/js/Lightbox.js\n\n\n\nconst LEFT_ARROW = 37;\nconst RIGHT_ARROW = 39;\n\n// All officially-supported browsers have this, but it's easy to\n// account for, just in case.\nconst HAS_ANIMATION =\n  typeof document === \"undefined\"\n    ? false\n    : \"animation\" in document.createElement(\"div\").style;\n\n/**\n * Represents the default lightbox implementation\n */\nclass Lightbox_Lightbox {\n  /**\n   * Constructor\n   * @param {Object=} options Lightbox options\n   */\n  constructor(options = {}) {\n    this._sizeImgWrapperEl = this._sizeImgWrapperEl.bind(this);\n    this.showNext = this.showNext.bind(this);\n    this.showPrevious = this.showPrevious.bind(this);\n    this._completeOpen = this._completeOpen.bind(this);\n    this._completeClose = this._completeClose.bind(this);\n    this._handleKeydown = this._handleKeydown.bind(this);\n    this._handleClose = this._handleClose.bind(this);\n\n    const {\n      namespace = null,\n      parentEl = throwIfMissing(),\n      triggerEl = throwIfMissing(),\n      sourceAttribute = throwIfMissing(),\n      caption = null,\n      includeImgixJSClass = false,\n      _gallery = null,\n      _arrowNavigation = null,\n      closeButtonEnabled = true,\n      closeTrigger = \"click\"\n    } = options;\n\n    this.settings = {\n      namespace,\n      parentEl,\n      triggerEl,\n      sourceAttribute,\n      caption,\n      includeImgixJSClass,\n      _gallery,\n      _arrowNavigation,\n      closeButtonEnabled,\n      onClose: options.onClose,\n      closeTrigger\n    };\n\n    if (!isDOMElement(this.settings.parentEl)) {\n      throw new TypeError(\n        \"`new Lightbox` requires a DOM element passed as `parentEl`.\"\n      );\n    }\n\n    this.currentTrigger = this.settings.triggerEl;\n\n    this.openClasses = this._buildClasses(\"open\");\n    this.openingClasses = this._buildClasses(\"opening\");\n    this.closingClasses = this._buildClasses(\"closing\");\n\n    this.hasBeenLoaded = false;\n    this.elementBuilt = false;\n  }\n\n  /**\n   * Handles closing of the lightbox\n   * @param {!Event} e Event that triggered closing\n   * @return {void}\n   * @protected\n   */\n  _handleClose(e) {\n    if (e && typeof e.preventDefault === \"function\") {\n      e.preventDefault();\n    }\n    if(e && e.type == \"click\" && e.target.classList.contains(\"lum-img\")) {\n      //if click is on img don't close\n      return;\n    }\n\n    const onClose = this.settings.onClose;\n    if (onClose && typeof onClose === \"function\") {\n      onClose();\n    }\n  }\n\n  /**\n   * Binds event listeners to the trigger element\n   * @return {void}\n   * @protected\n   */\n  _bindEventListeners() {\n    this.el.addEventListener(this.settings.closeTrigger, this._handleClose);\n    if (this.closeButtonEl) {\n      this.closeButtonEl.addEventListener(\"click\", this._handleClose);\n    }\n  }\n\n  /**\n   * Builds a class list using the namespace and suffix, if any.\n   * @param {string} suffix Suffix to add to each class\n   * @return {!Array<!string>} Class list\n   * @protected\n   */\n  _buildClasses(suffix) {\n    const classes = [`lum-${suffix}`];\n\n    const ns = this.settings.namespace;\n    if (ns) {\n      classes.push(`${ns}-${suffix}`);\n    }\n\n    return classes;\n  }\n\n  /**\n   * Creates the lightbox element\n   * @return {void}\n   * @protected\n   */\n  _buildElement() {\n    this.el = document.createElement(\"div\");\n    addClasses(this.el, this._buildClasses(\"lightbox\"));\n\n    this.innerEl = document.createElement(\"div\");\n    addClasses(this.innerEl, this._buildClasses(\"lightbox-inner\"));\n    this.el.appendChild(this.innerEl);\n\n    const loaderEl = document.createElement(\"div\");\n    addClasses(loaderEl, this._buildClasses(\"lightbox-loader\"));\n    this.innerEl.appendChild(loaderEl);\n\n    this.imgWrapperEl = document.createElement(\"div\");\n    addClasses(this.imgWrapperEl, this._buildClasses(\"lightbox-image-wrapper\"));\n    this.innerEl.appendChild(this.imgWrapperEl);\n\n    const positionHelperEl = document.createElement(\"span\");\n    addClasses(\n      positionHelperEl,\n      this._buildClasses(\"lightbox-position-helper\")\n    );\n    this.imgWrapperEl.appendChild(positionHelperEl);\n\n    this.imgEl = document.createElement(\"img\");\n    addClasses(this.imgEl, this._buildClasses(\"img\"));\n    positionHelperEl.appendChild(this.imgEl);\n\n    this.captionEl = document.createElement(\"p\");\n    addClasses(this.captionEl, this._buildClasses(\"lightbox-caption\"));\n    positionHelperEl.appendChild(this.captionEl);\n\n    if (this.settings.closeButtonEnabled) {\n      this.closeButtonEl = document.createElement(\"div\");\n      addClasses(this.closeButtonEl, this._buildClasses(\"close-button\"));\n      this.el.appendChild(this.closeButtonEl);\n    }\n\n    if (this.settings._gallery) {\n      this._setUpGalleryElements();\n    }\n\n    this.settings.parentEl.appendChild(this.el);\n\n    this._updateImgSrc();\n    this._updateCaption();\n\n    if (this.settings.includeImgixJSClass) {\n      this.imgEl.classList.add(\"imgix-fluid\");\n    }\n  }\n\n  /**\n   * Creates gallery elements such as previous/next buttons\n   * @return {void}\n   * @protected\n   */\n  _setUpGalleryElements() {\n    this._buildGalleryButton(\"previous\", this.showPrevious);\n    this._buildGalleryButton(\"next\", this.showNext);\n  }\n\n  /**\n   * Creates a gallery button\n   * @param {string} name Name of button\n   * @param {!Function} fn Click handler\n   * @return {void}\n   * @protected\n   */\n  _buildGalleryButton(name, fn) {\n    const btn = document.createElement(\"button\");\n    this[`${name}Button`] = btn;\n\n    btn.innerText = name;\n    addClasses(btn, this._buildClasses(`${name}-button`));\n    addClasses(btn, this._buildClasses(\"gallery-button\"));\n    this.innerEl.appendChild(btn);\n\n    btn.addEventListener(\n      \"click\",\n      e => {\n        e.stopPropagation();\n\n        fn();\n      },\n      false\n    );\n  }\n\n  /**\n   * Sizes the image wrapper\n   * @return {void}\n   * @protected\n   */\n  _sizeImgWrapperEl() {\n    const style = this.imgWrapperEl.style;\n    style.width = `${this.innerEl.clientWidth}px`;\n    style.maxWidth = `${this.innerEl.clientWidth}px`;\n    style.height = `${this.innerEl.clientHeight -\n      this.captionEl.clientHeight}px`;\n    style.maxHeight = `${this.innerEl.clientHeight -\n      this.captionEl.clientHeight}px`;\n  }\n\n  /**\n   * Updates caption from settings\n   * @return {void}\n   * @protected\n   */\n  _updateCaption() {\n    const captionType = typeof this.settings.caption;\n    let caption = \"\";\n\n    if (captionType === \"string\") {\n      caption = this.settings.caption;\n    } else if (captionType === \"function\") {\n      caption = this.settings.caption(this.currentTrigger);\n    }\n\n    this.captionEl.innerHTML = caption;\n  }\n\n  /**\n   * Updates image element from the trigger element's attributes\n   * @return {void}\n   * @protected\n   */\n  _updateImgSrc() {\n    const imageURL = this.currentTrigger.getAttribute(\n      this.settings.sourceAttribute\n    );\n\n    if (!imageURL) {\n      throw new Error(\n        `No image URL was found in the ${\n          this.settings.sourceAttribute\n        } attribute of the trigger.`\n      );\n    }\n\n    const loadingClasses = this._buildClasses(\"loading\");\n\n    if (!this.hasBeenLoaded) {\n      addClasses(this.el, loadingClasses);\n    }\n\n    this.imgEl.onload = () => {\n      removeClasses(this.el, loadingClasses);\n      this.hasBeenLoaded = true;\n    };\n\n    this.imgEl.setAttribute(\"src\", imageURL);\n  }\n\n  /**\n   * Handles key up/down events for moving between items\n   * @param {!Event} e Keyboard event\n   * @return {void}\n   * @protected\n   */\n  _handleKeydown(e) {\n    if (e.keyCode == LEFT_ARROW) {\n      this.showPrevious();\n    } else if (e.keyCode == RIGHT_ARROW) {\n      this.showNext();\n    }\n  }\n\n  /**\n   * Shows the next item if in a gallery\n   * @return {void}\n   */\n  showNext() {\n    if (!this.settings._gallery) {\n      return;\n    }\n\n    this.currentTrigger = this.settings._gallery.nextTrigger(\n      this.currentTrigger\n    );\n    this.hasBeenLoaded = false;\n    this._updateImgSrc();\n    this._updateCaption();\n    this._sizeImgWrapperEl();\n    this.settings._gallery.onChange({ imgEl: this.imgEl });\n  }\n\n  /**\n   * Shows the previous item if in a gallery\n   * @return {void}\n   */\n  showPrevious() {\n    if (!this.settings._gallery) {\n      return;\n    }\n\n    this.currentTrigger = this.settings._gallery.previousTrigger(\n      this.currentTrigger\n    );\n    this.hasBeenLoaded = false;\n    this._updateImgSrc();\n    this._updateCaption();\n    this._sizeImgWrapperEl();\n    this.settings._gallery.onChange({ imgEl: this.imgEl });\n  }\n\n  /**\n   * Opens the lightbox\n   * @return {void}\n   */\n  open() {\n    if (!this.elementBuilt) {\n      this._buildElement();\n      this._bindEventListeners();\n      this.elementBuilt = true;\n    }\n\n    // When opening, always reset to the trigger we were passed\n    this.currentTrigger = this.settings.triggerEl;\n\n    // Make sure to re-set the `img` `src`, in case it's been changed\n    // by someone/something else.\n    this._updateImgSrc();\n    this._updateCaption();\n\n    addClasses(this.el, this.openClasses);\n\n    this._sizeImgWrapperEl();\n    window.addEventListener(\"resize\", this._sizeImgWrapperEl, false);\n\n    if (this.settings._arrowNavigation) {\n      window.addEventListener(\"keydown\", this._handleKeydown, false);\n    }\n\n    if (HAS_ANIMATION) {\n      this.el.addEventListener(\"animationend\", this._completeOpen, false);\n      addClasses(this.el, this.openingClasses);\n    }\n  }\n\n  /**\n   * Closes the lightbox\n   * @return {void}\n   */\n  close() {\n    window.removeEventListener(\"resize\", this._sizeImgWrapperEl, false);\n\n    if (this.settings._arrowNavigation) {\n      window.removeEventListener(\"keydown\", this._handleKeydown, false);\n    }\n\n    if (HAS_ANIMATION) {\n      this.el.addEventListener(\"animationend\", this._completeClose, false);\n      addClasses(this.el, this.closingClasses);\n    } else {\n      removeClasses(this.el, this.openClasses);\n    }\n  }\n\n  /**\n   * Handles animations on completion of opening the lightbox\n   * @return {void}\n   * @protected\n   */\n  _completeOpen() {\n    this.el.removeEventListener(\"animationend\", this._completeOpen, false);\n\n    removeClasses(this.el, this.openingClasses);\n  }\n\n  /**\n   * Handles animations on completion of closing the lightbox\n   * @return {void}\n   * @protected\n   */\n  _completeClose() {\n    this.el.removeEventListener(\"animationend\", this._completeClose, false);\n\n    removeClasses(this.el, this.openClasses);\n    removeClasses(this.el, this.closingClasses);\n  }\n\n  /**\n   * Destroys the lightbox\n   * @return {void}\n   */\n  destroy() {\n    if (this.el) {\n      this.settings.parentEl.removeChild(this.el);\n    }\n  }\n}\n\n// CONCATENATED MODULE: ./src/js/Luminous.js\n\n\n\n\n/**\n * Represents the default luminous lightbox\n */\nclass Luminous_Luminous {\n  /**\n   * Constructor\n   * @param {!Element} trigger Trigger element to open lightbox\n   * @param {Object=} options Luminous options\n   */\n  constructor(trigger, options = {}) {\n    this.VERSION = \"2.4.0\";\n    this.destroy = this.destroy.bind(this);\n    this.open = this.open.bind(this);\n    this.close = this.close.bind(this);\n    this._handleKeyup = this._handleKeyup.bind(this);\n\n    this.isOpen = false;\n\n    this.trigger = trigger;\n\n    if (!isDOMElement(this.trigger)) {\n      throw new TypeError(\n        \"`new Luminous` requires a DOM element as its first argument.\"\n      );\n    }\n\n    let rootNode = document;\n    if (\"getRootNode\" in this.trigger) {\n      rootNode = this.trigger.getRootNode();\n    }\n    // Prefix for generated element class names (e.g. `my-ns` will\n    // result in classes such as `my-ns-lightbox`. Default `lum-`\n    // prefixed classes will always be added as well.\n    const namespace = options[\"namespace\"] || null;\n    // Which attribute to pull the lightbox image source from.\n    const sourceAttribute = options[\"sourceAttribute\"] || \"href\";\n    // Captions can be a literal string, or a function that receives the Luminous instance's trigger element as an argument and returns a string. Supports HTML, so use caution when dealing with user input.\n    const caption = options[\"caption\"] || null;\n    // The event to listen to on the _trigger_ element: triggers opening.\n    const openTrigger = options[\"openTrigger\"] || \"click\";\n    // The event to listen to on the _lightbox_ element: triggers closing.\n    const closeTrigger = options[\"closeTrigger\"] || \"click\";\n    // Allow closing by pressing escape.\n    const closeWithEscape = \"closeWithEscape\" in options ? !!options[\"closeWithEscape\"] : true;\n    // Automatically close when the page is scrolled.\n    const closeOnScroll = options[\"closeOnScroll\"] || false;\n    const closeButtonEnabled =\n      options[\"showCloseButton\"] != null ? options[\"showCloseButton\"] : true;\n    const appendToNode =\n      options[\"appendToNode\"] ||\n      (rootNode === document ? document.body : rootNode);\n    // A selector defining what to append the lightbox element to.\n    const appendToSelector = options[\"appendToSelector\"] || null;\n    // If present (and a function), this will be called\n    // whenever the lightbox is opened.\n    const onOpen = options[\"onOpen\"] || null;\n    // If present (and a function), this will be called\n    // whenever the lightbox is closed.\n    const onClose = options[\"onClose\"] || null;\n    // When true, adds the `imgix-fluid` class to the `img`\n    // inside the lightbox. See https://github.com/imgix/imgix.js\n    // for more information.\n    const includeImgixJSClass = options[\"includeImgixJSClass\"] || false;\n    // Add base styles to the page. See the \"Theming\"\n    // section of README.md for more information.\n    const injectBaseStyles = \"injectBaseStyles\" in options ? !!options[\"injectBaseStyles\"] : true;\n    // Internal use only!\n    const _gallery = options[\"_gallery\"] || null;\n    const _arrowNavigation = options[\"_arrowNavigation\"] || null;\n    const _onChange = options[\"_onChange\"] || null;\n\n    this.settings = {\n      namespace,\n      sourceAttribute,\n      caption,\n      openTrigger,\n      closeTrigger,\n      closeWithEscape,\n      closeOnScroll,\n      closeButtonEnabled,\n      appendToNode,\n      appendToSelector,\n      onOpen,\n      onClose,\n      includeImgixJSClass,\n      injectBaseStyles,\n      _gallery,\n      _arrowNavigation,\n      _onChange\n    };\n\n    let injectionRoot = document.body;\n    if (appendToNode && \"getRootNode\" in appendToNode) {\n      injectionRoot = appendToNode.getRootNode();\n    }\n\n    if (this.settings.injectBaseStyles) {\n      injectBaseStylesheet(injectionRoot);\n    }\n\n    this._buildLightbox();\n    this._bindEventListeners();\n  }\n\n  /**\n   * Opens the lightbox\n   * @param {Event=} e Event which triggered opening\n   * @return {void}\n   */\n  open(e) {\n    if (e && typeof e.preventDefault === \"function\") {\n      e.preventDefault();\n    }\n\n    this.lightbox.open();\n\n    if (this.settings.closeOnScroll) {\n      window.addEventListener(\"scroll\", this.close, false);\n    }\n\n    const onOpen = this.settings.onOpen;\n    if (onOpen && typeof onOpen === \"function\") {\n      onOpen();\n    }\n\n    this.isOpen = true;\n  }\n\n  /**\n   * Closes the lightbox\n   * @param {Event=} e Event which triggered closing\n   * @return {void}\n   */\n  close(e) {\n    if (this.settings.closeOnScroll) {\n      window.removeEventListener(\"scroll\", this.close, false);\n    }\n\n    this.lightbox.close();\n\n    const onClose = this.settings.onClose;\n    if (onClose && typeof onClose === \"function\") {\n      onClose();\n    }\n\n    this.isOpen = false;\n  }\n\n  /**\n   * Builds the internal lightbox instance\n   * @protected\n   * @return {void}\n   */\n  _buildLightbox() {\n    let parentEl = this.settings.appendToNode;\n\n    if (this.settings.appendToSelector) {\n      parentEl = document.querySelector(this.settings.appendToSelector);\n    }\n\n    this.lightbox = new Lightbox_Lightbox({\n      namespace: this.settings.namespace,\n      parentEl: parentEl,\n      triggerEl: this.trigger,\n      sourceAttribute: this.settings.sourceAttribute,\n      caption: this.settings.caption,\n      includeImgixJSClass: this.settings.includeImgixJSClass,\n      closeButtonEnabled: this.settings.closeButtonEnabled,\n      _gallery: this.settings._gallery,\n      _arrowNavigation: this.settings._arrowNavigation,\n      closeTrigger: this.settings.closeTrigger,\n      onClose: this.close\n    });\n  }\n\n  /**\n   * Binds lightbox events to the trigger element\n   * @protected\n   * @return {void}\n   */\n  _bindEventListeners() {\n    this.trigger.addEventListener(this.settings.openTrigger, this.open, false);\n\n    if (this.settings.closeWithEscape) {\n      window.addEventListener(\"keyup\", this._handleKeyup, false);\n    }\n  }\n\n  /**\n   * Unbinds all events\n   * @protected\n   * @return {void}\n   */\n  _unbindEvents() {\n    this.trigger.removeEventListener(\n      this.settings.openTrigger,\n      this.open,\n      false\n    );\n    if (this.lightbox.el) {\n      this.lightbox.el.removeEventListener(\n        this.settings.closeTrigger,\n        this.close,\n        false\n      );\n    }\n\n    if (this.settings.closeWithEscape) {\n      window.removeEventListener(\"keyup\", this._handleKeyup, false);\n    }\n  }\n\n  /**\n   * Handles key up events and closes lightbox when esc is pressed\n   * @param {!Event} e Keyboard event\n   * @return {void}\n   * @protected\n   */\n  _handleKeyup(e) {\n    if (this.isOpen && e.keyCode === 27) {\n      this.close();\n    }\n  }\n\n  /**\n   * Destroys internal lightbox and unbinds events\n   * @return {void}\n   */\n  destroy() {\n    this._unbindEvents();\n    this.lightbox.destroy();\n  }\n}\n\n/* eslint-disable no-self-assign */\nLuminous_Luminous.prototype[\"open\"] = Luminous_Luminous.prototype.open;\nLuminous_Luminous.prototype[\"close\"] = Luminous_Luminous.prototype.close;\nLuminous_Luminous.prototype[\"destroy\"] = Luminous_Luminous.prototype.destroy;\n/* eslint-enable no-self-assign */\n\n// CONCATENATED MODULE: ./src/js/LuminousGallery.js\n\n\n/**\n * Represents a gallery-style lightbox\n */\nclass LuminousGallery_LuminousGallery {\n  /**\n   * Constructor\n   * @param {!Array<!Element>} triggers Array of trigger elements\n   * @param {Object=} options Gallery options\n   * @param {Object=} luminousOpts Luminous options\n   */\n  constructor(triggers, options = {}, luminousOpts = {}) {    \n    const arrowNavigation = options[\"arrowNavigation\"] || true;\n    const onChange = options[\"onChange\"] || null;\n\n    this.settings = {\n      arrowNavigation,\n      onChange\n    }\n\n    this.triggers = triggers;\n    this.luminousOpts = luminousOpts;\n    this.luminousOpts[\"_gallery\"] = this;\n    this.luminousOpts[\"_arrowNavigation\"] = this.settings.arrowNavigation;\n    this._constructLuminousInstances();\n  }\n\n  /**\n   * Creates internal luminous instances\n   * @protected\n   * @return {void}\n   */\n  _constructLuminousInstances() {\n    this.luminousInstances = [];\n\n    const triggerLen = this.triggers.length;\n    for (let i = 0; i < triggerLen; i++) {\n      const trigger = this.triggers[i];\n      const lum = new Luminous_Luminous(trigger, this.luminousOpts);\n      this.luminousInstances.push(lum);\n    }\n  }\n\n  /**\n   * Determines the next trigger element\n   * @param {!Element} trigger Current trigger element\n   * @return {!Element}\n   */\n  nextTrigger(trigger) {\n    const nextTriggerIndex =\n      Array.prototype.indexOf.call(this.triggers, trigger) + 1;\n\n    return nextTriggerIndex >= this.triggers.length\n      ? this.triggers[0]\n      : this.triggers[nextTriggerIndex];\n  }\n\n  /**\n   * Determines the previous trigger element\n   * @param {!Element} trigger Current trigger element\n   * @return {!Element}\n   */\n  previousTrigger(trigger) {\n    const prevTriggerIndex =\n      Array.prototype.indexOf.call(this.triggers, trigger) - 1;\n\n    return prevTriggerIndex < 0\n      ? this.triggers[this.triggers.length - 1]\n      : this.triggers[prevTriggerIndex];\n  }\n\n  /**\n   * Callback called when current image is changed\n   * @param {Object} params\n   * @param {!Element} params.imgEl New image element\n   */\n  onChange({ imgEl }) {\n    const onChange = this.settings.onChange;\n    if (onChange && typeof onChange === \"function\") {\n      onChange({ \"imgEl\": imgEl });\n    }\n  }\n\n  /**\n   * Destroys the internal luminous instances\n   * @return {void}\n   */\n  destroy() {\n    this.luminousInstances.forEach(instance => instance.destroy());\n  }\n}\n\n/* eslint-disable-next-line no-self-assign */\nLuminousGallery_LuminousGallery.prototype[\"destroy\"] = LuminousGallery_LuminousGallery.prototype.destroy;\n\n// CONCATENATED MODULE: ./src/js/lum-browser.js\n// This file is used for the standalone browser build\n\n\n\n\nwindow[\"LuminousGallery\"] = LuminousGallery_LuminousGallery;\nwindow[\"Luminous\"] = Luminous_Luminous;\n\n\n/***/ })\n/******/ ]);"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId]) {\n \t\t\treturn installedModules[moduleId].exports;\n \t\t}\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\ti: moduleId,\n \t\t\tl: false,\n \t\t\texports: {}\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.l = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// define getter function for harmony exports\n \t__webpack_require__.d = function(exports, name, getter) {\n \t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, { enumerable: true, get: getter });\n \t\t}\n \t};\n\n \t// define __esModule on exports\n \t__webpack_require__.r = function(exports) {\n \t\tif(typeof Symbol !== 'undefined' && Symbol.toStringTag) {\n \t\t\tObject.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });\n \t\t}\n \t\tObject.defineProperty(exports, '__esModule', { value: true });\n \t};\n\n \t// create a fake namespace object\n \t// mode & 1: value is a module id, require it\n \t// mode & 2: merge all properties of value into the ns\n \t// mode & 4: return value when already ns object\n \t// mode & 8|1: behave like require\n \t__webpack_require__.t = function(value, mode) {\n \t\tif(mode & 1) value = __webpack_require__(value);\n \t\tif(mode & 8) return value;\n \t\tif((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;\n \t\tvar ns = Object.create(null);\n \t\t__webpack_require__.r(ns);\n \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n \t\treturn ns;\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 0);\n","import Luminous from \"./Luminous\";\n\n/**\n * Represents a gallery-style lightbox\n */\nexport default class LuminousGallery {\n  /**\n   * Constructor\n   * @param {!Array<!Element>} triggers Array of trigger elements\n   * @param {Object=} options Gallery options\n   * @param {Object=} luminousOpts Luminous options\n   */\n  constructor(triggers, options = {}, luminousOpts = {}) {    \n    const arrowNavigation = options[\"arrowNavigation\"] || true;\n    const onChange = options[\"onChange\"] || null;\n\n    this.settings = {\n      arrowNavigation,\n      onChange\n    }\n\n    this.triggers = triggers;\n    this.luminousOpts = luminousOpts;\n    this.luminousOpts[\"_gallery\"] = this;\n    this.luminousOpts[\"_arrowNavigation\"] = this.settings.arrowNavigation;\n    this._constructLuminousInstances();\n  }\n\n  /**\n   * Creates internal luminous instances\n   * @protected\n   * @return {void}\n   */\n  _constructLuminousInstances() {\n    this.luminousInstances = [];\n\n    const triggerLen = this.triggers.length;\n    for (let i = 0; i < triggerLen; i++) {\n      const trigger = this.triggers[i];\n      const lum = new Luminous(trigger, this.luminousOpts);\n      this.luminousInstances.push(lum);\n    }\n  }\n\n  /**\n   * Determines the next trigger element\n   * @param {!Element} trigger Current trigger element\n   * @return {!Element}\n   */\n  nextTrigger(trigger) {\n    const nextTriggerIndex =\n      Array.prototype.indexOf.call(this.triggers, trigger) + 1;\n\n    return nextTriggerIndex >= this.triggers.length\n      ? this.triggers[0]\n      : this.triggers[nextTriggerIndex];\n  }\n\n  /**\n   * Determines the previous trigger element\n   * @param {!Element} trigger Current trigger element\n   * @return {!Element}\n   */\n  previousTrigger(trigger) {\n    const prevTriggerIndex =\n      Array.prototype.indexOf.call(this.triggers, trigger) - 1;\n\n    return prevTriggerIndex < 0\n      ? this.triggers[this.triggers.length - 1]\n      : this.triggers[prevTriggerIndex];\n  }\n\n  /**\n   * Callback called when current image is changed\n   * @param {Object} params\n   * @param {!Element} params.imgEl New image element\n   */\n  onChange({ imgEl }) {\n    const onChange = this.settings.onChange;\n    if (onChange && typeof onChange === \"function\") {\n      onChange({ \"imgEl\": imgEl });\n    }\n  }\n\n  /**\n   * Destroys the internal luminous instances\n   * @return {void}\n   */\n  destroy() {\n    this.luminousInstances.forEach(instance => instance.destroy());\n  }\n}\n\n/* eslint-disable-next-line no-self-assign */\nLuminousGallery.prototype[\"destroy\"] = LuminousGallery.prototype.destroy;\n","import { isDOMElement } from \"./util/dom\";\nimport injectBaseStylesheet from \"./injectBaseStylesheet\";\nimport Lightbox from \"./Lightbox\";\n\n/**\n * Represents the default luminous lightbox\n */\nexport default class Luminous {\n  /**\n   * Constructor\n   * @param {!Element} trigger Trigger element to open lightbox\n   * @param {Object=} options Luminous options\n   */\n  constructor(trigger, options = {}) {\n    this.VERSION = \"2.4.0\";\n    this.destroy = this.destroy.bind(this);\n    this.open = this.open.bind(this);\n    this.close = this.close.bind(this);\n    this._handleKeyup = this._handleKeyup.bind(this);\n\n    this.isOpen = false;\n\n    this.trigger = trigger;\n\n    if (!isDOMElement(this.trigger)) {\n      throw new TypeError(\n        \"`new Luminous` requires a DOM element as its first argument.\"\n      );\n    }\n\n    let rootNode = document;\n    if (\"getRootNode\" in this.trigger) {\n      rootNode = this.trigger.getRootNode();\n    }\n    // Prefix for generated element class names (e.g. `my-ns` will\n    // result in classes such as `my-ns-lightbox`. Default `lum-`\n    // prefixed classes will always be added as well.\n    const namespace = options[\"namespace\"] || null;\n    // Which attribute to pull the lightbox image source from.\n    const sourceAttribute = options[\"sourceAttribute\"] || \"href\";\n    // Captions can be a literal string, or a function that receives the Luminous instance's trigger element as an argument and returns a string. Supports HTML, so use caution when dealing with user input.\n    const caption = options[\"caption\"] || null;\n    // The event to listen to on the _trigger_ element: triggers opening.\n    const openTrigger = options[\"openTrigger\"] || \"click\";\n    // The event to listen to on the _lightbox_ element: triggers closing.\n    const closeTrigger = options[\"closeTrigger\"] || \"click\";\n    // Allow closing by pressing escape.\n    const closeWithEscape = \"closeWithEscape\" in options ? !!options[\"closeWithEscape\"] : true;\n    // Automatically close when the page is scrolled.\n    const closeOnScroll = options[\"closeOnScroll\"] || false;\n    const closeButtonEnabled =\n      options[\"showCloseButton\"] != null ? options[\"showCloseButton\"] : true;\n    const appendToNode =\n      options[\"appendToNode\"] ||\n      (rootNode === document ? document.body : rootNode);\n    // A selector defining what to append the lightbox element to.\n    const appendToSelector = options[\"appendToSelector\"] || null;\n    // If present (and a function), this will be called\n    // whenever the lightbox is opened.\n    const onOpen = options[\"onOpen\"] || null;\n    // If present (and a function), this will be called\n    // whenever the lightbox is closed.\n    const onClose = options[\"onClose\"] || null;\n    // When true, adds the `imgix-fluid` class to the `img`\n    // inside the lightbox. See https://github.com/imgix/imgix.js\n    // for more information.\n    const includeImgixJSClass = options[\"includeImgixJSClass\"] || false;\n    // Add base styles to the page. See the \"Theming\"\n    // section of README.md for more information.\n    const injectBaseStyles = \"injectBaseStyles\" in options ? !!options[\"injectBaseStyles\"] : true;\n    // Internal use only!\n    const _gallery = options[\"_gallery\"] || null;\n    const _arrowNavigation = options[\"_arrowNavigation\"] || null;\n    const _onChange = options[\"_onChange\"] || null;\n\n    this.settings = {\n      namespace,\n      sourceAttribute,\n      caption,\n      openTrigger,\n      closeTrigger,\n      closeWithEscape,\n      closeOnScroll,\n      closeButtonEnabled,\n      appendToNode,\n      appendToSelector,\n      onOpen,\n      onClose,\n      includeImgixJSClass,\n      injectBaseStyles,\n      _gallery,\n      _arrowNavigation,\n      _onChange\n    };\n\n    let injectionRoot = document.body;\n    if (appendToNode && \"getRootNode\" in appendToNode) {\n      injectionRoot = appendToNode.getRootNode();\n    }\n\n    if (this.settings.injectBaseStyles) {\n      injectBaseStylesheet(injectionRoot);\n    }\n\n    this._buildLightbox();\n    this._bindEventListeners();\n  }\n\n  /**\n   * Opens the lightbox\n   * @param {Event=} e Event which triggered opening\n   * @return {void}\n   */\n  open(e) {\n    if (e && typeof e.preventDefault === \"function\") {\n      e.preventDefault();\n    }\n\n    this.lightbox.open();\n\n    if (this.settings.closeOnScroll) {\n      window.addEventListener(\"scroll\", this.close, false);\n    }\n\n    const onOpen = this.settings.onOpen;\n    if (onOpen && typeof onOpen === \"function\") {\n      onOpen();\n    }\n\n    this.isOpen = true;\n  }\n\n  /**\n   * Closes the lightbox\n   * @param {Event=} e Event which triggered closing\n   * @return {void}\n   */\n  close(e) {\n    if (this.settings.closeOnScroll) {\n      window.removeEventListener(\"scroll\", this.close, false);\n    }\n\n    this.lightbox.close();\n\n    const onClose = this.settings.onClose;\n    if (onClose && typeof onClose === \"function\") {\n      onClose();\n    }\n\n    this.isOpen = false;\n  }\n\n  /**\n   * Builds the internal lightbox instance\n   * @protected\n   * @return {void}\n   */\n  _buildLightbox() {\n    let parentEl = this.settings.appendToNode;\n\n    if (this.settings.appendToSelector) {\n      parentEl = document.querySelector(this.settings.appendToSelector);\n    }\n\n    this.lightbox = new Lightbox({\n      namespace: this.settings.namespace,\n      parentEl: parentEl,\n      triggerEl: this.trigger,\n      sourceAttribute: this.settings.sourceAttribute,\n      caption: this.settings.caption,\n      includeImgixJSClass: this.settings.includeImgixJSClass,\n      closeButtonEnabled: this.settings.closeButtonEnabled,\n      _gallery: this.settings._gallery,\n      _arrowNavigation: this.settings._arrowNavigation,\n      closeTrigger: this.settings.closeTrigger,\n      onClose: this.close\n    });\n  }\n\n  /**\n   * Binds lightbox events to the trigger element\n   * @protected\n   * @return {void}\n   */\n  _bindEventListeners() {\n    this.trigger.addEventListener(this.settings.openTrigger, this.open, false);\n\n    if (this.settings.closeWithEscape) {\n      window.addEventListener(\"keyup\", this._handleKeyup, false);\n    }\n  }\n\n  /**\n   * Unbinds all events\n   * @protected\n   * @return {void}\n   */\n  _unbindEvents() {\n    this.trigger.removeEventListener(\n      this.settings.openTrigger,\n      this.open,\n      false\n    );\n    if (this.lightbox.el) {\n      this.lightbox.el.removeEventListener(\n        this.settings.closeTrigger,\n        this.close,\n        false\n      );\n    }\n\n    if (this.settings.closeWithEscape) {\n      window.removeEventListener(\"keyup\", this._handleKeyup, false);\n    }\n  }\n\n  /**\n   * Handles key up events and closes lightbox when esc is pressed\n   * @param {!Event} e Keyboard event\n   * @return {void}\n   * @protected\n   */\n  _handleKeyup(e) {\n    if (this.isOpen && e.keyCode === 27) {\n      this.close();\n    }\n  }\n\n  /**\n   * Destroys internal lightbox and unbinds events\n   * @return {void}\n   */\n  destroy() {\n    this._unbindEvents();\n    this.lightbox.destroy();\n  }\n}\n\n/* eslint-disable no-self-assign */\nLuminous.prototype[\"open\"] = Luminous.prototype.open;\nLuminous.prototype[\"close\"] = Luminous.prototype.close;\nLuminous.prototype[\"destroy\"] = Luminous.prototype.destroy;\n/* eslint-enable no-self-assign */\n","/* UNMINIFIED RULES\n\n@keyframes lum-noop {\n  0% { zoom: 1; }\n}\n\n.lum-lightbox {\n  position: fixed;\n  display: none;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n}\n\n.lum-lightbox.lum-open {\n  display: block;\n}\n\n.lum-lightbox.lum-opening, .lum-lightbox.lum-closing {\n  animation: lum-noop 1ms;\n}\n\n.lum-lightbox-inner {\n  position: absolute;\n  top: 0%;\n  right: 0%;\n  bottom: 0%;\n  left: 0%;\n\n  overflow: hidden;\n}\n\n.lum-lightbox-loader {\n  display: none;\n}\n\n.lum-lightbox-inner img {\n  max-width: 100%;\n  max-height: 100%;\n}\n\n.lum-lightbox-image-wrapper {\n  vertical-align: middle;\n  display: table-cell;\n  text-align: center;\n}\n*/\n\nconst RULES = `@keyframes lum-noop{0%{zoom:1}}.lum-lightbox{position:fixed;display:none;top:0;right:0;bottom:0;left:0}.lum-lightbox.lum-open{display:block}.lum-lightbox.lum-closing,.lum-lightbox.lum-opening{animation:lum-noop 1ms}.lum-lightbox-inner{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden}.lum-lightbox-loader{display:none}.lum-lightbox-inner img{max-width:100%;max-height:100%}.lum-lightbox-image-wrapper{vertical-align:middle;display:table-cell;text-align:center}`;\n\n/**\n * Injects the base stylesheet needed to display the lightbox\n * element.\n * If `node` is the document, the stylesheet will be appended to `<head>`.\n * @param {!Node} node Node to append stylesheet to\n * @return {void}\n */\nexport default function injectBaseStylesheet(node) {\n  if (!node || node === document) {\n    node = document.head;\n  }\n\n  if (node.querySelector(\".lum-base-styles\")) {\n    return;\n  }\n\n  const styleEl = document.createElement(\"style\");\n  styleEl.type = \"text/css\";\n  styleEl.classList.add(\"lum-base-styles\");\n\n  styleEl.appendChild(document.createTextNode(RULES));\n\n  node.insertBefore(styleEl, node.firstChild);\n}\n","import { isDOMElement, addClasses, removeClasses } from \"./util/dom\";\nimport throwIfMissing from \"./util/throwIfMissing\";\n\nconst LEFT_ARROW = 37;\nconst RIGHT_ARROW = 39;\n\n// All officially-supported browsers have this, but it's easy to\n// account for, just in case.\nconst HAS_ANIMATION =\n  typeof document === \"undefined\"\n    ? false\n    : \"animation\" in document.createElement(\"div\").style;\n\n/**\n * Represents the default lightbox implementation\n */\nexport default class Lightbox {\n  /**\n   * Constructor\n   * @param {Object=} options Lightbox options\n   */\n  constructor(options = {}) {\n    this._sizeImgWrapperEl = this._sizeImgWrapperEl.bind(this);\n    this.showNext = this.showNext.bind(this);\n    this.showPrevious = this.showPrevious.bind(this);\n    this._completeOpen = this._completeOpen.bind(this);\n    this._completeClose = this._completeClose.bind(this);\n    this._handleKeydown = this._handleKeydown.bind(this);\n    this._handleClose = this._handleClose.bind(this);\n\n    const {\n      namespace = null,\n      parentEl = throwIfMissing(),\n      triggerEl = throwIfMissing(),\n      sourceAttribute = throwIfMissing(),\n      caption = null,\n      includeImgixJSClass = false,\n      _gallery = null,\n      _arrowNavigation = null,\n      closeButtonEnabled = true,\n      closeTrigger = \"click\"\n    } = options;\n\n    this.settings = {\n      namespace,\n      parentEl,\n      triggerEl,\n      sourceAttribute,\n      caption,\n      includeImgixJSClass,\n      _gallery,\n      _arrowNavigation,\n      closeButtonEnabled,\n      onClose: options.onClose,\n      closeTrigger\n    };\n\n    if (!isDOMElement(this.settings.parentEl)) {\n      throw new TypeError(\n        \"`new Lightbox` requires a DOM element passed as `parentEl`.\"\n      );\n    }\n\n    this.currentTrigger = this.settings.triggerEl;\n\n    this.openClasses = this._buildClasses(\"open\");\n    this.openingClasses = this._buildClasses(\"opening\");\n    this.closingClasses = this._buildClasses(\"closing\");\n\n    this.hasBeenLoaded = false;\n    this.elementBuilt = false;\n  }\n\n  /**\n   * Handles closing of the lightbox\n   * @param {!Event} e Event that triggered closing\n   * @return {void}\n   * @protected\n   */\n  _handleClose(e) {\n    if (e && typeof e.preventDefault === \"function\") {\n      e.preventDefault();\n    }\n    if(e && e.type == \"click\" && e.target.classList.contains(\"lum-img\")) {\n      //if click is on img don't close\n      return;\n    }\n\n    const onClose = this.settings.onClose;\n    if (onClose && typeof onClose === \"function\") {\n      onClose();\n    }\n  }\n\n  /**\n   * Binds event listeners to the trigger element\n   * @return {void}\n   * @protected\n   */\n  _bindEventListeners() {\n    this.el.addEventListener(this.settings.closeTrigger, this._handleClose);\n    if (this.closeButtonEl) {\n      this.closeButtonEl.addEventListener(\"click\", this._handleClose);\n    }\n  }\n\n  /**\n   * Builds a class list using the namespace and suffix, if any.\n   * @param {string} suffix Suffix to add to each class\n   * @return {!Array<!string>} Class list\n   * @protected\n   */\n  _buildClasses(suffix) {\n    const classes = [`lum-${suffix}`];\n\n    const ns = this.settings.namespace;\n    if (ns) {\n      classes.push(`${ns}-${suffix}`);\n    }\n\n    return classes;\n  }\n\n  /**\n   * Creates the lightbox element\n   * @return {void}\n   * @protected\n   */\n  _buildElement() {\n    this.el = document.createElement(\"div\");\n    addClasses(this.el, this._buildClasses(\"lightbox\"));\n\n    this.innerEl = document.createElement(\"div\");\n    addClasses(this.innerEl, this._buildClasses(\"lightbox-inner\"));\n    this.el.appendChild(this.innerEl);\n\n    const loaderEl = document.createElement(\"div\");\n    addClasses(loaderEl, this._buildClasses(\"lightbox-loader\"));\n    this.innerEl.appendChild(loaderEl);\n\n    this.imgWrapperEl = document.createElement(\"div\");\n    addClasses(this.imgWrapperEl, this._buildClasses(\"lightbox-image-wrapper\"));\n    this.innerEl.appendChild(this.imgWrapperEl);\n\n    const positionHelperEl = document.createElement(\"span\");\n    addClasses(\n      positionHelperEl,\n      this._buildClasses(\"lightbox-position-helper\")\n    );\n    this.imgWrapperEl.appendChild(positionHelperEl);\n\n    this.imgEl = document.createElement(\"img\");\n    addClasses(this.imgEl, this._buildClasses(\"img\"));\n    positionHelperEl.appendChild(this.imgEl);\n\n    this.captionEl = document.createElement(\"p\");\n    addClasses(this.captionEl, this._buildClasses(\"lightbox-caption\"));\n    positionHelperEl.appendChild(this.captionEl);\n\n    if (this.settings.closeButtonEnabled) {\n      this.closeButtonEl = document.createElement(\"div\");\n      addClasses(this.closeButtonEl, this._buildClasses(\"close-button\"));\n      this.el.appendChild(this.closeButtonEl);\n    }\n\n    if (this.settings._gallery) {\n      this._setUpGalleryElements();\n    }\n\n    this.settings.parentEl.appendChild(this.el);\n\n    this._updateImgSrc();\n    this._updateCaption();\n\n    if (this.settings.includeImgixJSClass) {\n      this.imgEl.classList.add(\"imgix-fluid\");\n    }\n  }\n\n  /**\n   * Creates gallery elements such as previous/next buttons\n   * @return {void}\n   * @protected\n   */\n  _setUpGalleryElements() {\n    this._buildGalleryButton(\"previous\", this.showPrevious);\n    this._buildGalleryButton(\"next\", this.showNext);\n  }\n\n  /**\n   * Creates a gallery button\n   * @param {string} name Name of button\n   * @param {!Function} fn Click handler\n   * @return {void}\n   * @protected\n   */\n  _buildGalleryButton(name, fn) {\n    const btn = document.createElement(\"button\");\n    this[`${name}Button`] = btn;\n\n    btn.innerText = name;\n    addClasses(btn, this._buildClasses(`${name}-button`));\n    addClasses(btn, this._buildClasses(\"gallery-button\"));\n    this.innerEl.appendChild(btn);\n\n    btn.addEventListener(\n      \"click\",\n      e => {\n        e.stopPropagation();\n\n        fn();\n      },\n      false\n    );\n  }\n\n  /**\n   * Sizes the image wrapper\n   * @return {void}\n   * @protected\n   */\n  _sizeImgWrapperEl() {\n    const style = this.imgWrapperEl.style;\n    style.width = `${this.innerEl.clientWidth}px`;\n    style.maxWidth = `${this.innerEl.clientWidth}px`;\n    style.height = `${this.innerEl.clientHeight -\n      this.captionEl.clientHeight}px`;\n    style.maxHeight = `${this.innerEl.clientHeight -\n      this.captionEl.clientHeight}px`;\n  }\n\n  /**\n   * Updates caption from settings\n   * @return {void}\n   * @protected\n   */\n  _updateCaption() {\n    const captionType = typeof this.settings.caption;\n    let caption = \"\";\n\n    if (captionType === \"string\") {\n      caption = this.settings.caption;\n    } else if (captionType === \"function\") {\n      caption = this.settings.caption(this.currentTrigger);\n    }\n\n    this.captionEl.innerHTML = caption;\n  }\n\n  /**\n   * Updates image element from the trigger element's attributes\n   * @return {void}\n   * @protected\n   */\n  _updateImgSrc() {\n    const imageURL = this.currentTrigger.getAttribute(\n      this.settings.sourceAttribute\n    );\n\n    if (!imageURL) {\n      throw new Error(\n        `No image URL was found in the ${\n          this.settings.sourceAttribute\n        } attribute of the trigger.`\n      );\n    }\n\n    const loadingClasses = this._buildClasses(\"loading\");\n\n    if (!this.hasBeenLoaded) {\n      addClasses(this.el, loadingClasses);\n    }\n\n    this.imgEl.onload = () => {\n      removeClasses(this.el, loadingClasses);\n      this.hasBeenLoaded = true;\n    };\n\n    this.imgEl.setAttribute(\"src\", imageURL);\n  }\n\n  /**\n   * Handles key up/down events for moving between items\n   * @param {!Event} e Keyboard event\n   * @return {void}\n   * @protected\n   */\n  _handleKeydown(e) {\n    if (e.keyCode == LEFT_ARROW) {\n      this.showPrevious();\n    } else if (e.keyCode == RIGHT_ARROW) {\n      this.showNext();\n    }\n  }\n\n  /**\n   * Shows the next item if in a gallery\n   * @return {void}\n   */\n  showNext() {\n    if (!this.settings._gallery) {\n      return;\n    }\n\n    this.currentTrigger = this.settings._gallery.nextTrigger(\n      this.currentTrigger\n    );\n    this.hasBeenLoaded = false;\n    this._updateImgSrc();\n    this._updateCaption();\n    this._sizeImgWrapperEl();\n    this.settings._gallery.onChange({ imgEl: this.imgEl });\n  }\n\n  /**\n   * Shows the previous item if in a gallery\n   * @return {void}\n   */\n  showPrevious() {\n    if (!this.settings._gallery) {\n      return;\n    }\n\n    this.currentTrigger = this.settings._gallery.previousTrigger(\n      this.currentTrigger\n    );\n    this.hasBeenLoaded = false;\n    this._updateImgSrc();\n    this._updateCaption();\n    this._sizeImgWrapperEl();\n    this.settings._gallery.onChange({ imgEl: this.imgEl });\n  }\n\n  /**\n   * Opens the lightbox\n   * @return {void}\n   */\n  open() {\n    if (!this.elementBuilt) {\n      this._buildElement();\n      this._bindEventListeners();\n      this.elementBuilt = true;\n    }\n\n    // When opening, always reset to the trigger we were passed\n    this.currentTrigger = this.settings.triggerEl;\n\n    // Make sure to re-set the `img` `src`, in case it's been changed\n    // by someone/something else.\n    this._updateImgSrc();\n    this._updateCaption();\n\n    addClasses(this.el, this.openClasses);\n\n    this._sizeImgWrapperEl();\n    window.addEventListener(\"resize\", this._sizeImgWrapperEl, false);\n\n    if (this.settings._arrowNavigation) {\n      window.addEventListener(\"keydown\", this._handleKeydown, false);\n    }\n\n    if (HAS_ANIMATION) {\n      this.el.addEventListener(\"animationend\", this._completeOpen, false);\n      addClasses(this.el, this.openingClasses);\n    }\n  }\n\n  /**\n   * Closes the lightbox\n   * @return {void}\n   */\n  close() {\n    window.removeEventListener(\"resize\", this._sizeImgWrapperEl, false);\n\n    if (this.settings._arrowNavigation) {\n      window.removeEventListener(\"keydown\", this._handleKeydown, false);\n    }\n\n    if (HAS_ANIMATION) {\n      this.el.addEventListener(\"animationend\", this._completeClose, false);\n      addClasses(this.el, this.closingClasses);\n    } else {\n      removeClasses(this.el, this.openClasses);\n    }\n  }\n\n  /**\n   * Handles animations on completion of opening the lightbox\n   * @return {void}\n   * @protected\n   */\n  _completeOpen() {\n    this.el.removeEventListener(\"animationend\", this._completeOpen, false);\n\n    removeClasses(this.el, this.openingClasses);\n  }\n\n  /**\n   * Handles animations on completion of closing the lightbox\n   * @return {void}\n   * @protected\n   */\n  _completeClose() {\n    this.el.removeEventListener(\"animationend\", this._completeClose, false);\n\n    removeClasses(this.el, this.openClasses);\n    removeClasses(this.el, this.closingClasses);\n  }\n\n  /**\n   * Destroys the lightbox\n   * @return {void}\n   */\n  destroy() {\n    if (this.el) {\n      this.settings.parentEl.removeChild(this.el);\n    }\n  }\n}\n","// This is not really a perfect check, but works fine.\n// From http://stackoverflow.com/questions/384286\nconst HAS_DOM_2 = typeof HTMLElement === \"object\";\nconst HAS_SHADOW = typeof ShadowRoot !== \"undefined\";\n\n/**\n * Determines whether an object is a DOM element or not.\n * @param {!Object} obj Object to check\n * @return {boolean} True if object is an element\n */\nexport function isDOMElement(obj) {\n  if (HAS_SHADOW && obj instanceof ShadowRoot) {\n    return true;\n  }\n  return HAS_DOM_2\n    ? obj instanceof HTMLElement\n    : obj &&\n        typeof obj === \"object\" &&\n        obj !== null &&\n        obj.nodeType === 1 &&\n        typeof obj.nodeName === \"string\";\n}\n\n/**\n * Adds an array of classes to an element\n * @param {!Element} el Element to add classes to\n * @param {!Array<!string>} classNames Class names to add\n * @return {void}\n */\nexport function addClasses(el, classNames) {\n  classNames.forEach(function(className) {\n    el.classList.add(className);\n  });\n}\n\n/**\n * Removes an array of classes from an element\n * @param {!Element} el Element to remove classes from\n * @param {!Array<!string>} classNames Classes to remove\n * @return {void}\n */\nexport function removeClasses(el, classNames) {\n  classNames.forEach(function(className) {\n    el.classList.remove(className);\n  });\n}\n","/**\n * Throws a missing parameter error\n */\nexport default function throwIfMissing() {\n  throw new Error(\"Missing parameter\");\n}\n","// This file is used for the standalone browser build\n\nimport Luminous from \"./Luminous\";\nimport LuminousGallery from \"./LuminousGallery\";\n\nwindow[\"LuminousGallery\"] = LuminousGallery;\nwindow[\"Luminous\"] = Luminous;\n"],"sourceRoot":""}