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{ on } from 'delegated-events'\n\nconst titlesJson = document.getElementById('news-category-meta-titles')\n\nif (titlesJson) {\n  const titles = JSON.parse(titlesJson.textContent)\n\n  on('pagefilters:update', 'html', (e) => {\n    if (e.detail.data) {\n      const category = e.detail.data.get('category')\n\n      if (category) {\n        const urlSegment = category.split('/').reverse()[0]\n\n        if (urlSegment in titles) {\n          const metaTitle = titles[urlSegment]\n\n          document.querySelector('title').textContent = metaTitle\n        }\n      }\n    }\n\n    if (e.detail.type && e.detail.type === 'clear') {\n      document.querySelector('title').textContent = titles['_default']\n    }\n  })\n}\n","// Public: Create a new SelectorSet.\nexport default function SelectorSet() {\n  // Construct new SelectorSet if called as a function.\n  if (!(this instanceof SelectorSet)) {\n    return new SelectorSet();\n  }\n\n  // Public: Number of selectors added to the set\n  this.size = 0;\n\n  // Internal: Incrementing ID counter\n  this.uid = 0;\n\n  // Internal: Array of String selectors in the set\n  this.selectors = [];\n\n  // Internal: Map of selector ids to objects\n  this.selectorObjects = {};\n\n  // Internal: All Object index String names mapping to Index objects.\n  this.indexes = Object.create(this.indexes);\n\n  // Internal: Used Object index String names mapping to Index objects.\n  this.activeIndexes = [];\n}\n\n// Detect prefixed Element#matches function.\nvar docElem = window.document.documentElement;\nvar matches =\n  docElem.matches ||\n  docElem.webkitMatchesSelector ||\n  docElem.mozMatchesSelector ||\n  docElem.oMatchesSelector ||\n  docElem.msMatchesSelector;\n\n// Public: Check if element matches selector.\n//\n// Maybe overridden with custom Element.matches function.\n//\n// el       - An Element\n// selector - String CSS selector\n//\n// Returns true or false.\nSelectorSet.prototype.matchesSelector = function(el, selector) {\n  return matches.call(el, selector);\n};\n\n// Public: Find all elements in the context that match the selector.\n//\n// Maybe overridden with custom querySelectorAll function.\n//\n// selectors - String CSS selectors.\n// context   - Element context\n//\n// Returns non-live list of Elements.\nSelectorSet.prototype.querySelectorAll = function(selectors, context) {\n  return context.querySelectorAll(selectors);\n};\n\n// Public: Array of indexes.\n//\n// name     - Unique String name\n// selector - Function that takes a String selector and returns a String key\n//            or undefined if it can't be used by the index.\n// element  - Function that takes an Element and returns an Array of String\n//            keys that point to indexed values.\n//\nSelectorSet.prototype.indexes = [];\n\n// Index by element id\nvar idRe = /^#((?:[\\w\\u00c0-\\uFFFF\\-]|\\\\.)+)/g;\nSelectorSet.prototype.indexes.push({\n  name: 'ID',\n  selector: function matchIdSelector(sel) {\n    var m;\n    if ((m = sel.match(idRe))) {\n      return m[0].slice(1);\n    }\n  },\n  element: function getElementId(el) {\n    if (el.id) {\n      return [el.id];\n    }\n  }\n});\n\n// Index by all of its class names\nvar classRe = /^\\.((?:[\\w\\u00c0-\\uFFFF\\-]|\\\\.)+)/g;\nSelectorSet.prototype.indexes.push({\n  name: 'CLASS',\n  selector: function matchClassSelector(sel) {\n    var m;\n    if ((m = sel.match(classRe))) {\n      return m[0].slice(1);\n    }\n  },\n  element: function getElementClassNames(el) {\n    var className = el.className;\n    if (className) {\n      if (typeof className === 'string') {\n        return className.split(/\\s/);\n      } else if (typeof className === 'object' && 'baseVal' in className) {\n        // className is a SVGAnimatedString\n        // global SVGAnimatedString is not an exposed global in Opera 12\n        return className.baseVal.split(/\\s/);\n      }\n    }\n  }\n});\n\n// Index by tag/node name: `DIV`, `FORM`, `A`\nvar tagRe = /^((?:[\\w\\u00c0-\\uFFFF\\-]|\\\\.)+)/g;\nSelectorSet.prototype.indexes.push({\n  name: 'TAG',\n  selector: function matchTagSelector(sel) {\n    var m;\n    if ((m = sel.match(tagRe))) {\n      return m[0].toUpperCase();\n    }\n  },\n  element: function getElementTagName(el) {\n    return [el.nodeName.toUpperCase()];\n  }\n});\n\n// Default index just contains a single array of elements.\nSelectorSet.prototype.indexes['default'] = {\n  name: 'UNIVERSAL',\n  selector: function() {\n    return true;\n  },\n  element: function() {\n    return [true];\n  }\n};\n\n// Use ES Maps when supported\nvar Map;\nif (typeof window.Map === 'function') {\n  Map = window.Map;\n} else {\n  Map = (function() {\n    function Map() {\n      this.map = {};\n    }\n    Map.prototype.get = function(key) {\n      return this.map[key + ' '];\n    };\n    Map.prototype.set = function(key, value) {\n      this.map[key + ' '] = value;\n    };\n    return Map;\n  })();\n}\n\n// Regexps adopted from Sizzle\n//   https://github.com/jquery/sizzle/blob/1.7/sizzle.js\n//\nvar chunker = /((?:\\((?:\\([^()]+\\)|[^()]+)+\\)|\\[(?:\\[[^\\[\\]]*\\]|['\"][^'\"]*['\"]|[^\\[\\]'\"]+)+\\]|\\\\.|[^ >+~,(\\[\\\\]+)+|[>+~])(\\s*,\\s*)?((?:.|\\r|\\n)*)/g;\n\n// Internal: Get indexes for selector.\n//\n// selector - String CSS selector\n//\n// Returns Array of {index, key}.\nfunction parseSelectorIndexes(allIndexes, selector) {\n  allIndexes = allIndexes.slice(0).concat(allIndexes['default']);\n\n  var allIndexesLen = allIndexes.length,\n    i,\n    j,\n    m,\n    dup,\n    rest = selector,\n    key,\n    index,\n    indexes = [];\n\n  do {\n    chunker.exec('');\n    if ((m = chunker.exec(rest))) {\n      rest = m[3];\n      if (m[2] || !rest) {\n        for (i = 0; i < allIndexesLen; i++) {\n          index = allIndexes[i];\n          if ((key = index.selector(m[1]))) {\n            j = indexes.length;\n            dup = false;\n            while (j--) {\n              if (indexes[j].index === index && indexes[j].key === key) {\n                dup = true;\n                break;\n              }\n            }\n            if (!dup) {\n              indexes.push({ index: index, key: key });\n            }\n            break;\n          }\n        }\n      }\n    }\n  } while (m);\n\n  return indexes;\n}\n\n// Internal: Find first item in Array that is a prototype of `proto`.\n//\n// ary   - Array of objects\n// proto - Prototype of expected item in `ary`\n//\n// Returns object from `ary` if found. Otherwise returns undefined.\nfunction findByPrototype(ary, proto) {\n  var i, len, item;\n  for (i = 0, len = ary.length; i < len; i++) {\n    item = ary[i];\n    if (proto.isPrototypeOf(item)) {\n      return item;\n    }\n  }\n}\n\n// Public: Log when added selector falls under the default index.\n//\n// This API should not be considered stable. May change between\n// minor versions.\n//\n// obj - {selector, data} Object\n//\n//   SelectorSet.prototype.logDefaultIndexUsed = function(obj) {\n//     console.warn(obj.selector, \"could not be indexed\");\n//   };\n//\n// Returns nothing.\nSelectorSet.prototype.logDefaultIndexUsed = function() {};\n\n// Public: Add selector to set.\n//\n// selector - String CSS selector\n// data     - Optional data Object (default: undefined)\n//\n// Returns nothing.\nSelectorSet.prototype.add = function(selector, data) {\n  var obj,\n    i,\n    indexProto,\n    key,\n    index,\n    objs,\n    selectorIndexes,\n    selectorIndex,\n    indexes = this.activeIndexes,\n    selectors = this.selectors,\n    selectorObjects = this.selectorObjects;\n\n  if (typeof selector !== 'string') {\n    return;\n  }\n\n  obj = {\n    id: this.uid++,\n    selector: selector,\n    data: data\n  };\n  selectorObjects[obj.id] = obj;\n\n  selectorIndexes = parseSelectorIndexes(this.indexes, selector);\n  for (i = 0; i < selectorIndexes.length; i++) {\n    selectorIndex = selectorIndexes[i];\n    key = selectorIndex.key;\n    indexProto = selectorIndex.index;\n\n    index = findByPrototype(indexes, indexProto);\n    if (!index) {\n      index = Object.create(indexProto);\n      index.map = new Map();\n      indexes.push(index);\n    }\n\n    if (indexProto === this.indexes['default']) {\n      this.logDefaultIndexUsed(obj);\n    }\n    objs = index.map.get(key);\n    if (!objs) {\n      objs = [];\n      index.map.set(key, objs);\n    }\n    objs.push(obj);\n  }\n\n  this.size++;\n  selectors.push(selector);\n};\n\n// Public: Remove selector from set.\n//\n// selector - String CSS selector\n// data     - Optional data Object (default: undefined)\n//\n// Returns nothing.\nSelectorSet.prototype.remove = function(selector, data) {\n  if (typeof selector !== 'string') {\n    return;\n  }\n\n  var selectorIndexes,\n    selectorIndex,\n    i,\n    j,\n    k,\n    selIndex,\n    objs,\n    obj,\n    indexes = this.activeIndexes,\n    selectors = (this.selectors = []),\n    selectorObjects = this.selectorObjects,\n    removedIds = {},\n    removeAll = arguments.length === 1;\n\n  selectorIndexes = parseSelectorIndexes(this.indexes, selector);\n  for (i = 0; i < selectorIndexes.length; i++) {\n    selectorIndex = selectorIndexes[i];\n\n    j = indexes.length;\n    while (j--) {\n      selIndex = indexes[j];\n      if (selectorIndex.index.isPrototypeOf(selIndex)) {\n        objs = selIndex.map.get(selectorIndex.key);\n        if (objs) {\n          k = objs.length;\n          while (k--) {\n            obj = objs[k];\n            if (obj.selector === selector && (removeAll || obj.data === data)) {\n              objs.splice(k, 1);\n              removedIds[obj.id] = true;\n            }\n          }\n        }\n        break;\n      }\n    }\n  }\n\n  for (i in removedIds) {\n    delete selectorObjects[i];\n    this.size--;\n  }\n\n  for (i in selectorObjects) {\n    selectors.push(selectorObjects[i].selector);\n  }\n};\n\n// Sort by id property handler.\n//\n// a - Selector obj.\n// b - Selector obj.\n//\n// Returns Number.\nfunction sortById(a, b) {\n  return a.id - b.id;\n}\n\n// Public: Find all matching decendants of the context element.\n//\n// context - An Element\n//\n// Returns Array of {selector, data, elements} matches.\nSelectorSet.prototype.queryAll = function(context) {\n  if (!this.selectors.length) {\n    return [];\n  }\n\n  var matches = {},\n    results = [];\n  var els = this.querySelectorAll(this.selectors.join(', '), context);\n\n  var i, j, len, len2, el, m, match, obj;\n  for (i = 0, len = els.length; i < len; i++) {\n    el = els[i];\n    m = this.matches(el);\n    for (j = 0, len2 = m.length; j < len2; j++) {\n      obj = m[j];\n      if (!matches[obj.id]) {\n        match = {\n          id: obj.id,\n          selector: obj.selector,\n          data: obj.data,\n          elements: []\n        };\n        matches[obj.id] = match;\n        results.push(match);\n      } else {\n        match = matches[obj.id];\n      }\n      match.elements.push(el);\n    }\n  }\n\n  return results.sort(sortById);\n};\n\n// Public: Match element against all selectors in set.\n//\n// el - An Element\n//\n// Returns Array of {selector, data} matches.\nSelectorSet.prototype.matches = function(el) {\n  if (!el) {\n    return [];\n  }\n\n  var i, j, k, len, len2, len3, index, keys, objs, obj, id;\n  var indexes = this.activeIndexes,\n    matchedIds = {},\n    matches = [];\n\n  for (i = 0, len = indexes.length; i < len; i++) {\n    index = indexes[i];\n    keys = index.element(el);\n    if (keys) {\n      for (j = 0, len2 = keys.length; j < len2; j++) {\n        if ((objs = index.map.get(keys[j]))) {\n          for (k = 0, len3 = objs.length; k < len3; k++) {\n            obj = objs[k];\n            id = obj.id;\n            if (!matchedIds[id] && this.matchesSelector(el, obj.selector)) {\n              matchedIds[id] = true;\n              matches.push(obj);\n            }\n          }\n        }\n      }\n    }\n  }\n\n  return matches.sort(sortById);\n};\n","import SelectorSet from 'selector-set';\n\nvar bubbleEvents = {};\nvar captureEvents = {};\nvar propagationStopped = new WeakMap();\nvar immediatePropagationStopped = new WeakMap();\nvar currentTargets = new WeakMap();\nvar currentTargetDesc = Object.getOwnPropertyDescriptor(Event.prototype, 'currentTarget');\n\nfunction before(subject, verb, fn) {\n  var source = subject[verb];\n\n  subject[verb] = function () {\n    fn.apply(subject, arguments);\n    return source.apply(subject, arguments);\n  };\n\n  return subject;\n}\n\nfunction matches(selectors, target, reverse) {\n  var queue = [];\n  var node = target;\n\n  do {\n    if (node.nodeType !== 1) break;\n\n    var _matches = selectors.matches(node);\n\n    if (_matches.length) {\n      var matched = {\n        node: node,\n        observers: _matches\n      };\n\n      if (reverse) {\n        queue.unshift(matched);\n      } else {\n        queue.push(matched);\n      }\n    }\n  } while (node = node.parentElement);\n\n  return queue;\n}\n\nfunction trackPropagation() {\n  propagationStopped.set(this, true);\n}\n\nfunction trackImmediate() {\n  propagationStopped.set(this, true);\n  immediatePropagationStopped.set(this, true);\n}\n\nfunction getCurrentTarget() {\n  return currentTargets.get(this) || null;\n}\n\nfunction defineCurrentTarget(event, getter) {\n  if (!currentTargetDesc) return;\n  Object.defineProperty(event, 'currentTarget', {\n    configurable: true,\n    enumerable: true,\n    get: getter || currentTargetDesc.get\n  });\n}\n\nfunction canDispatch(event) {\n  try {\n    event.eventPhase;\n    return true;\n  } catch (_) {\n    return false;\n  }\n}\n\nfunction dispatch(event) {\n  if (!canDispatch(event)) return;\n  var events = event.eventPhase === 1 ? captureEvents : bubbleEvents;\n  var selectors = events[event.type];\n  if (!selectors) return;\n  var queue = matches(selectors, event.target, event.eventPhase === 1);\n  if (!queue.length) return;\n  before(event, 'stopPropagation', trackPropagation);\n  before(event, 'stopImmediatePropagation', trackImmediate);\n  defineCurrentTarget(event, getCurrentTarget);\n\n  for (var i = 0, len1 = queue.length; i < len1; i++) {\n    if (propagationStopped.get(event)) break;\n    var matched = queue[i];\n    currentTargets.set(event, matched.node);\n\n    for (var j = 0, len2 = matched.observers.length; j < len2; j++) {\n      if (immediatePropagationStopped.get(event)) break;\n      matched.observers[j].data.call(matched.node, event);\n    }\n  }\n\n  currentTargets[\"delete\"](event);\n  defineCurrentTarget(event);\n}\n\nfunction on(name, selector, fn) {\n  var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n  var capture = options.capture ? true : false;\n  var events = capture ? captureEvents : bubbleEvents;\n  var selectors = events[name];\n\n  if (!selectors) {\n    selectors = new SelectorSet();\n    events[name] = selectors;\n    document.addEventListener(name, dispatch, capture);\n  }\n\n  selectors.add(selector, fn);\n}\nfunction off(name, selector, fn) {\n  var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n  var capture = options.capture ? true : false;\n  var events = capture ? captureEvents : bubbleEvents;\n  var selectors = events[name];\n  if (!selectors) return;\n  selectors.remove(selector, fn);\n  if (selectors.size) return;\n  delete events[name];\n  document.removeEventListener(name, dispatch, capture);\n}\nfunction fire(target, name, detail) {\n  return target.dispatchEvent(new CustomEvent(name, {\n    bubbles: true,\n    cancelable: true,\n    detail: detail\n  }));\n}\n\nexport { fire, off, on };\n"],"names":["titlesJson","document","getElementById","titles","JSON","parse","textContent","on","e","detail","data","category","get","urlSegment","split","reverse","metaTitle","querySelector","type","SelectorSet","this","size","uid","selectors","selectorObjects","indexes","Object","create","activeIndexes","docElem","window","documentElement","matches","webkitMatchesSelector","mozMatchesSelector","oMatchesSelector","msMatchesSelector","prototype","matchesSelector","el","selector","call","querySelectorAll","context","idRe","push","name","sel","m","match","slice","element","id","classRe","className","baseVal","Map","tagRe","toUpperCase","nodeName","map","key","set","value","chunker","parseSelectorIndexes","allIndexes","i","j","dup","index","allIndexesLen","concat","length","rest","exec","findByPrototype","ary","proto","len","item","isPrototypeOf","sortById","a","b","logDefaultIndexUsed","add","obj","indexProto","objs","selectorIndexes","selectorIndex","remove","k","selIndex","removedIds","removeAll","arguments","splice","queryAll","len2","results","els","join","elements","sort","len3","keys","matchedIds","bubbleEvents","captureEvents","propagationStopped","WeakMap","immediatePropagationStopped","currentTargets","currentTargetDesc","getOwnPropertyDescriptor","Event","before","subject","verb","fn","source","apply","trackPropagation","trackImmediate","getCurrentTarget","defineCurrentTarget","event","getter","defineProperty","configurable","enumerable","dispatch","eventPhase","_","canDispatch","queue","target","node","nodeType","_matches","matched","observers","unshift","parentElement","len1","options","undefined","capture","events","addEventListener","off","removeEventListener","fire","dispatchEvent","CustomEvent","bubbles","cancelable"],"sourceRoot":""}