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The function will be called after it stops being called for\n * N milliseconds. If `immediate` is passed, trigger the function on the\n * leading edge, instead of the trailing. The function also has a property 'clear' \n * that is a function which will clear the timer to prevent previously scheduled executions. \n *\n * @source underscore.js\n * @see http://unscriptable.com/2009/03/20/debouncing-javascript-methods/\n * @param {Function} function to wrap\n * @param {Number} timeout in ms (`100`)\n * @param {Boolean} whether to execute at the beginning (`false`)\n * @api public\n */\nfunction debounce(func, wait, immediate){\n  var timeout, args, context, timestamp, result;\n  if (null == wait) wait = 100;\n\n  function later() {\n    var last = Date.now() - timestamp;\n\n    if (last < wait && last >= 0) {\n      timeout = setTimeout(later, wait - last);\n    } else {\n      timeout = null;\n      if (!immediate) {\n        result = func.apply(context, args);\n        context = args = null;\n      }\n    }\n  };\n\n  var debounced = function(){\n    context = this;\n    args = arguments;\n    timestamp = Date.now();\n    var callNow = immediate && !timeout;\n    if (!timeout) timeout = setTimeout(later, wait);\n    if (callNow) {\n      result = func.apply(context, args);\n      context = args = null;\n    }\n\n    return result;\n  };\n\n  debounced.clear = function() {\n    if (timeout) {\n      clearTimeout(timeout);\n      timeout = null;\n    }\n  };\n  \n  debounced.flush = function() {\n    if (timeout) {\n      result = func.apply(context, args);\n      context = args = null;\n      \n      clearTimeout(timeout);\n      timeout = null;\n    }\n  };\n\n  return debounced;\n};\n\n// Adds compatibility for ES modules\ndebounce.debounce = debounce;\n\nmodule.exports = debounce;\n","import { debounce } from 'debounce';\r\n\r\n// endpoint where search data comes from\r\nconst collectionSearchURL = window.collectionSearchEndpoint.toString() + (window.collectionSearchEndpoint.toString().indexOf('?') > -1 ? '&q=' : '?q=');\r\n\r\n// Get from the cache, or make a new fetch request\r\nasync function getSearchResults(searchString) {\r\n    return await (await window.fetch(collectionSearchURL + searchString)).text();\r\n}\r\n\r\nclass HelpSearch {\r\n\r\n    constructor(el) {\r\n        this.el = el;\r\n        this.searchTextField = el.querySelector('input[type=\"search\"]');\r\n        this.searchWatch = null;\r\n        this.searchText = '';\r\n        this.prevSearchText = '';\r\n        this.resultsWrapper = el.querySelector('.collection-search-form--results');\r\n        this.resultsActive = false;\r\n        // watch the searchTextField\r\n        if(this.searchTextField != null) {\r\n            this.searchTextField.onfocus = () => {\r\n                this.watchSearchText(true);\r\n            };\r\n            this.searchTextField.onblur = () => {\r\n                this.watchSearchText(false);\r\n            };\r\n        }\r\n    }\r\n\r\n    watchSearchText(mode) {\r\n        // search only kicks in if text is at least 3 chars\r\n        if(mode) {\r\n            this.searchWatch = setInterval(() => {\r\n                this.checkSearchText(true);\r\n            }, 200);\r\n        } else {\r\n            clearInterval(this.searchWatch);\r\n            this.searchWatch = null;\r\n        }\r\n    }\r\n\r\n    checkSearchText(triggerUpdate = false) {\r\n        this.prevSearchText = this.searchText;\r\n        let getSearchText = this.searchTextField.value.toLowerCase().trim(),\r\n            workSearchText = getSearchText.length > 2 ? getSearchText : '';\r\n        if(workSearchText != this.prevSearchText) {\r\n            this.searchText = workSearchText;\r\n            if(triggerUpdate) debounce(this.update(), 200);\r\n        }\r\n    }\r\n\r\n    update() {\r\n        if(this.searchText != '') {\r\n            getSearchResults(this.searchText).then((content) => {\r\n                if(content != '') {\r\n                    this.resultsWrapper.innerHTML = content;\r\n                    this.resultsWrapper.setAttribute('aria-hidden','false');\r\n                    this.resultsActive = true;\r\n                } else {\r\n                    this.resultsWrapper.innerHTML = '';\r\n                    this.resultsWrapper.setAttribute('aria-hidden','true');\r\n                    this.resultsActive = false;\r\n                }\r\n            });\r\n        } else {\r\n            this.resultsWrapper.innerHTML = '';\r\n            this.resultsWrapper.setAttribute('aria-hidden','true');\r\n            this.resultsActive = false;\r\n        }\r\n    }\r\n\r\n}\r\n\r\n// export the default function to create\r\nexport function createFrom(wrappers) {\r\n    wrappers.forEach((node) => {\r\n        // if node is an element\r\n        if (node.nodeType === 1) {\r\n            new HelpSearch(node);\r\n        }\r\n    });\r\n}"],"names":["debounce","func","wait","immediate","timeout","args","context","timestamp","result","later","last","Date","now","setTimeout","apply","debounced","this","arguments","callNow","clear","clearTimeout","flush","module","exports","collectionSearchURL","window","collectionSearchEndpoint","toString","indexOf","HelpSearch","constructor","el","searchTextField","querySelector","searchWatch","searchText","prevSearchText","resultsWrapper","resultsActive","onfocus","watchSearchText","onblur","mode","setInterval","checkSearchText","clearInterval","triggerUpdate","getSearchText","value","toLowerCase","trim","workSearchText","length","update","async","searchString","fetch","text","getSearchResults","then","content","innerHTML","setAttribute","createFrom","wrappers","forEach","node","nodeType"],"sourceRoot":""}