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A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n  return !!value && typeof value == 'object';\n}\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n  return typeof value == 'symbol' ||\n    (isObjectLike(value) && objectToString.call(value) == symbolTag);\n}\n\n/**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\nfunction toNumber(value) {\n  if (typeof value == 'number') {\n    return value;\n  }\n  if (isSymbol(value)) {\n    return NAN;\n  }\n  if (isObject(value)) {\n    var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n    value = isObject(other) ? (other + '') : other;\n  }\n  if (typeof value != 'string') {\n    return value === 0 ? value : +value;\n  }\n  value = value.replace(reTrim, '');\n  var isBinary = reIsBinary.test(value);\n  return (isBinary || reIsOctal.test(value))\n    ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n    : (reIsBadHex.test(value) ? NAN : +value);\n}\n\nmodule.exports = debounce;\n","import { Component } from '@verndale/core';\nimport { KEYS, KEYS_DIRECTION } from '../constants';\nimport _debounce from 'lodash.debounce'\n\nclass Module extends Component {\n  setupDefaults() {\n    this.dom = {\n      $triggers: this.el._$$('[aria-expanded]'),\n      $panels: this.el._$$('.accordion-item__panel')\n    };\n\n    this.resetFocusability();\n    this.checkIfOpen();\n  }\n\n  addListeners() {\n    this.dom.$triggers._on('click', this.handleClick.bind(this));\n    this.dom.$triggers._on('keydown', this.handleKeyDown.bind(this));\n    this.dom.$triggers._on('keyup', this.handleKeyUp.bind(this));\n    this.el._on('expandAll', this.handleExpandAll.bind(this));\n    this.el._on('collapseAll', this.handleCollapseAll.bind(this));\n    window._on('resize', _debounce(this.updateMinHeights.bind(this), 200));\n\n    this.initialized = true;\n  }\n\n  handleClick(e) {\n    this.handlePanelDisplay(e.currentTarget);\n  }\n\n  handleKeyDown(e) {\n    switch (e.keyCode) {\n    case KEYS.END:\n      e.preventDefault();\n      this.focusTrigger(this.dom.$triggers[this.dom.$triggers.length - 1]);\n      break;\n    case KEYS.HOME:\n      e.preventDefault();\n      this.focusTrigger(this.don.$triggers[0]);\n      break;\n    case KEYS.UP:\n    case KEYS.DOWN:\n      e.preventDefault();\n      break\n    }\n  }\n\n  handleKeyUp(e) {\n    switch (e.keyCode) {\n    case KEYS.UP:\n    case KEYS.DOWN:\n      this.handleArrowPress(e);\n      break;\n    }\n  }\n\n  handlePanelDisplay($el) {\n    const isExpanded = $el.getAttribute('aria-expanded') === 'true';\n\n    if (isExpanded) {\n      this.collapse($el);\n    } else {\n      this.expand($el);\n    }\n\n    this.resetFocusability();\n    const event = new CustomEvent('change');\n    this.el.dispatchEvent(event);\n  }\n\n  handleArrowPress(e) {\n    const $el = e.currentTarget;\n\n    if (!KEYS_DIRECTION[e.keyCode]) return;\n    if (typeof $el.dataset.index === 'undefined') return;\n    const index = parseInt($el.dataset.index, 10);\n\n    if (this.dom.$triggers[index + KEYS_DIRECTION[e.keyCode]]) {\n      this.focusTrigger(this.dom.$triggers[index + KEYS_DIRECTION[e.keyCode]]);\n      return;\n    }\n\n    if (e.keyCode === KEYS.UP) {\n      this.focusTrigger(this.dom.$triggers[this.dom.$triggers.length - 1]);\n    } else if (e.keyCode === KEYS.DOWN) {\n      this.focusTrigger(this.dom.$triggers[0]);\n    }\n  }\n\n  handleExpandAll(e) {\n    e.target._$$('[aria-expanded]').forEach(this.expand.bind(this));\n    this.resetFocusability();\n    const event = new CustomEvent('change');\n    this.el.dispatchEvent(event);\n  }\n\n  handleCollapseAll(e) {\n    e.target._$$('[aria-expanded]').forEach(this.collapse.bind(this));\n    this.resetFocusability();\n    const event = new CustomEvent('change');\n    this.el.dispatchEvent(event);\n  }\n\n  expand($el) {\n    const panelId = $el.getAttribute('aria-controls');\n    const $panel = this.el.parentNode._$(`#${panelId}`);\n\n    $el.setAttribute('aria-expanded', 'true');\n    $panel.style.maxHeight = `${$panel.scrollHeight}px`;\n    $panel.style.visibility = 'visible';\n    $panel.removeAttribute('aria-hidden');\n  }\n\n  collapse($el) {\n    const panelId = $el.getAttribute('aria-controls');\n    const $panel = this.el.parentNode._$(`#${panelId}`);\n\n    $el.setAttribute('aria-expanded', 'false');\n    $panel.style.maxHeight = '0';\n    $panel.style.visibility = 'hidden';\n    $panel.setAttribute('aria-hidden', 'true');\n  }\n\n  focusTrigger($el) {\n    $el.focus();\n  }\n\n  updateMinHeights() {\n    const $exapnded = this.dom.$panels.filter(el => !el.getAttribute('aria-hidden'));\n    $exapnded.forEach(el => {\n      el.style.maxHeight = `${el.scrollHeight}px`;\n    })\n  }\n\n  resetFocusability() {\n    const $exapnded = [];\n    const $collapsed = [];\n\n    this.dom.$panels.forEach(el => {\n      if (el.getAttribute('aria-hidden')) {\n        $collapsed.push(el);\n      } else {\n        $exapnded.push(el);\n      }\n    });\n\n    $exapnded.forEach(panel => {\n      panel._$$('a').forEach(el => el.removeAttribute('tabindex'))\n    });\n    $collapsed.forEach(panel => {\n      panel._$$('a').forEach(el => el.setAttribute('tabindex', '-1'));\n    })\n  }\n\n  checkIfOpen() {\n    const params = new URLSearchParams(window.location.search);\n    const param = params.get('openAccordion');\n    if (param) {\n      this.dom.$triggers.forEach($trigger => {\n        if ($trigger.getAttribute('id') === param) {\n          this.expand($trigger);\n          setTimeout(() => {\n            $trigger.scrollIntoView();\n          }, 1000);\n        } else {\n          this.collapse($trigger);\n        }\n      });\n    }\n  }\n}\n\nexport default Module;\n"],"sourceRoot":""}