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strict\";\r\n/*! alphaListNav.js - v0.7.1\r\nBuild Date: 02-05-2020\r\nAuthor: [Bryan Elliott] (https://github.com/elliottprogrammer/)\r\nGit Repository: git+https://github.com/elliottprogrammer/alphaListNav.js.git */\r\n\r\n/**\r\n* ** TODO: **\r\n* 2. Add options\r\n*    - dont-count:\r\n*    - Remember last letter cookie?\r\n*    - onLetterClick function()\r\n* 3. Add nice css styling\r\n* 4. Refactor & optimize for size\r\n* \r\n**/\r\n\r\nclass AlphaListNav {\r\n    constructor(listElem, options = {}) {\r\n\r\n        const defaultOptions = {\r\n            initHidden: true,\r\n            initHiddenText: 'Tap a letter above to view matching items',  // string or boolean false\r\n            initLetter: '',\r\n            includeAll: true,\r\n            allText: 'All',\r\n            noMatchText: 'No matching entries',\r\n            includeNums: true,\r\n            concatenateNums: true, // 0 - 9\r\n            includeOther: false,\r\n            flagDisabled: true,\r\n            removeDisabled: false,\r\n            prefixes: [], // array of strings and/or RegEx's\r\n            filterSelector: '',\r\n            showCounts: true,\r\n            showLetterHeadings: true,\r\n        }\r\n\r\n\r\n        this.listElem = this._isDomElement(listElem) ? listElem : document.getElementById(listElem);\r\n\r\n        this.options = {\r\n            ...defaultOptions,\r\n            ...options\r\n        }\r\n\r\n        this.alphaObj = null;\r\n        this.alphaNav = null;\r\n        this.newListHTML = null;\r\n\r\n        // if there is options.prefixes[], check if any are strings, if so, convert to them to RegEx's\r\n        if (this.options.prefixes.length) {\r\n            const regexes = this.options.prefixes.map(val => {\r\n                if (typeof val === 'string') {\r\n                    val = val.replace(/[.*+?^${}()|[\\]\\\\]/, '\\\\$&');\r\n                    return val + '\\\\s';//new RegExp(val);\r\n                }\r\n                if (typeof val === 'object' && val instanceof RegExp) {\r\n                    return val.source + '\\\\s';\r\n                }\r\n            });\r\n            this.options.prefixes = new RegExp(regexes.join(\"|\"), \"gi\");\r\n        }\r\n\r\n        this.init();\r\n    }\r\n\r\n    init = () => {\r\n\r\n        // if first arg is not an HTMLElement, return\r\n        if (!this.listElem) { console.error('The supplied argument must be a HTML DOM element or a valid element id (string)'); return; }\r\n        // get array of list items\r\n        const listItems = this._getListItems(this.listElem);\r\n        //console.log(listItems);\r\n        // sort list into an alphabetical object\r\n        this.alphaObj = this._getAlphaObj(listItems);\r\n        //console.log(this.alphaObj);\r\n        // generate new list html with sorting markup\r\n        this.newListHTML = this._generateNewListHTML(this.alphaObj);\r\n        // generate the alpha-nav buttons html\r\n        this.alphaNav = this._generateAlphaNav(this.alphaObj);\r\n        // Replace the old list with the new alpha-list in the dom\r\n        this.listElem.parentNode.replaceChild(this.newListHTML, this.listElem);\r\n        // // get reference to the new alpha-list\r\n        //const newListElem = document.getElementById('alpha-list');\r\n        // Add alpha-nav buttons to dom\r\n        this.newListHTML.parentNode.insertBefore(this.alphaNav, this.newListHTML);\r\n        // get reference to alpha-nav\r\n        //const alphaNavElem = document.getElementById('alpha-nav');\r\n\r\n        this.initAlphaListNav(this.newListHTML, this.alphaNav, this.alphaObj);\r\n\r\n        // Add event listener to alpha-nav buttons\r\n        this.alphaNav.addEventListener('click', e => {\r\n            // TODO: replace with create selectLetter() function\r\n            e.preventDefault();\r\n            if (!e.target.dataset.filter) return;\r\n            const letter = e.target.dataset.filter;\r\n            // remove active class from all buttons\r\n            for (let btn of this.alphaNav.children) {\r\n                btn.classList.remove('active');\r\n            }\r\n            // remove active class from all lists\r\n            for (let ul of this.newListHTML.children) {\r\n                ul.classList.remove('active');\r\n            }\r\n            // add active class to button clicked\r\n            e.target.classList.add('active');\r\n            // add active class to the list matching the cooresponding clicked letter\r\n            if (letter === '*') {\r\n                for (let div of this.newListHTML.children) {\r\n                    if (div.id !== 'no-match')\r\n                        div.classList.add('active');\r\n                }\r\n            } else {\r\n                this.newListHTML.querySelector(`#${letter.replace(/[-]/, '\\\\$&')}`).classList.add('active');\r\n            }\r\n\r\n        });\r\n\r\n        // Show letter counts\r\n        if (this.options.showCounts) {\r\n            Array.prototype.slice.call(this.alphaNav.children).forEach(alphaLink => {\r\n                alphaLink.addEventListener('mouseover', e => {\r\n                    let count = 0;\r\n                    if (e.target.dataset.filter) {\r\n                        const filter = e.target.dataset.filter;\r\n                        if (filter !== 'no-match') {\r\n                            if (filter === '*') {\r\n                                count = Object.keys(this.alphaObj).reduce((accum, key) => {\r\n                                    return accum + this.alphaObj[key].length;\r\n                                }, 0);\r\n                            } else {\r\n                                count = this.alphaObj[filter].length\r\n                            }\r\n                        }\r\n                    };\r\n                    const countElem = document.createElement('span');\r\n                    countElem.className = \"alphaNav-count-elem\";\r\n                    countElem.style.cssText = `position:absolute;left:0;width:100%;text-align:center;font-size:75%;`;\r\n                    countElem.textContent = count;\r\n                    // inject into dom, but with no visibility so we can calculate the element height\r\n                    countElem.style.visibility = 'none';\r\n                    e.target.appendChild(countElem);\r\n                    const countElemHeight = countElem.getBoundingClientRect().height;\r\n                    // top position is -count elem height + 3.\r\n                    const countTopPos = countElemHeight + 2;\r\n                    // set count elem top position\r\n                    countElem.style.top = `-${countTopPos}px`;\r\n                    // and make visible\r\n                    countElem.style.visibility = 'visible';\r\n                });\r\n\r\n                alphaLink.addEventListener('mouseout', e => {\r\n                    e.target.removeChild(e.target.children[0]);\r\n                })\r\n            });\r\n        }\r\n\r\n    }\r\n\r\n    // Retrieve the text value from DOM node or an array of DOM nodes.\r\n    // Taken from jQuery (source: https://github.com/jquery/jquery/blob/master/src/core.js)\r\n    _getText = (elem) => {\r\n        let node,\r\n            ret = \"\",\r\n            i = 0,\r\n            nodeType = elem.nodeType;\r\n        if (!nodeType) {\r\n            // If no nodeType, this is expected to be an array\r\n            while ((node = elem[i++])) {\r\n                // Do not traverse comment nodes\r\n                ret += this._getText(node);\r\n            }\r\n        } else if (nodeType === 1 || nodeType === 9 || nodeType === 11) {\r\n            // Use textContent for elements\r\n            if (typeof elem.textContent === \"string\") {\r\n                return elem.textContent;\r\n            } else {\r\n                // Traverse its children\r\n                for (elem = elem.firstChild; elem; elem = elem.nextSibling) {\r\n                    ret += this._getText(elem);\r\n                }\r\n            }\r\n        } else if (nodeType === 3 || nodeType === 4) {\r\n            return elem.nodeValue;\r\n        }\r\n        return ret;\r\n    }\r\n\r\n    initAlphaListNav = (newListElem, alphaNavElem, alphaObj) => {\r\n        // if initLetter is set, show that letter first\r\n        if (this.options.initLetter) {\r\n            // if init letter is All(*), show all\r\n            if (this.options.initLetter === '*' && this.options.includeAll) {\r\n                alphaNavElem.querySelector(`a[data-filter=\"${this.options.initLetter.toLowerCase()}\"]`).classList.add('active');\r\n                const allListGroups = newListElem.querySelectorAll('div.alpha-list-wrapper');\r\n                Array.prototype.slice.call(allListGroups).forEach(div => div.classList.add('active'));\r\n                // else show init letter, if it exists..\r\n            } else if (alphaObj.hasOwnProperty(this.options.initLetter.toLowerCase())) {\r\n                // TODO: replace with create selectLetter() function\r\n                alphaNavElem.querySelector(`a[data-filter=\"${this.options.initLetter.toLowerCase()}\"]`).classList.add('active');\r\n                newListElem.querySelector(`#${this.options.initLetter.toLowerCase()}`).classList.add('active');\r\n            }\r\n        } else {\r\n            // if initHidden set, don't show list\r\n            if (this.options.initHidden) {\r\n                if (this.options.initHiddenText)\r\n                    document.getElementById('initText').classList.add('active');\r\n                // if includeAll is set, show all list\r\n            } else if (this.options.includeAll) {\r\n                const allListGroups = newListElem.querySelectorAll('div.alpha-list-wrapper');\r\n                Array.prototype.slice.call(allListGroups).forEach(div => div.classList.add('active'));\r\n                alphaNavElem.querySelector(`a[data-filter=\"*\"]`).classList.add('active');\r\n                // if none of above, find first letter with with list items, and show that first.\r\n            } else {\r\n                const firstLetter = this._getArrayAtoZ().find(char => alphaObj.hasOwnProperty(char.toLowerCase())).toLowerCase();\r\n\r\n                // TODO: replace with/create selectLetter() function\r\n                alphaNavElem.querySelector(`a[data-filter=\"${firstLetter}\"]`).classList.add('active');\r\n                document.getElementById(firstLetter).classList.add('active');\r\n            }\r\n        }\r\n    }\r\n\r\n    _getListItems(listElem) {\r\n        if (!listElem.children.length)\r\n            return [];\r\n        return Array.prototype.slice.call(listElem.children);\r\n    }\r\n\r\n    _isDomElement(elem) {\r\n        return (\r\n            typeof HTMLElement === \"object\" ? elem instanceof HTMLElement : //DOM2\r\n                elem && typeof elem === \"object\" && elem !== null && elem.nodeType === 1 && typeof elem.nodeName === \"string\"\r\n        );\r\n    }\r\n\r\n    // create object of list items ordered by each alphabet letter\r\n    _getAlphaObj = (listItemsArray) => {\r\n        const alphaList = listItemsArray.reduce((accum, val) => {\r\n            let text = '';\r\n            if (this.options.filterSelector) {\r\n                const filterElem = val.querySelector(this.options.filterSelector);\r\n                text = filterElem ? this._getText(filterElem) : this._getText(val);\r\n            } else {\r\n                text = this._getText(val);\r\n            }\r\n            if (text) {\r\n                // if text first char is (-_*) for some reason, remove it because it will cause problems.\r\n                text.trim().replace(/^[_*-]/, '');\r\n                let letter;\r\n                if (this.options.prefixes instanceof RegExp) {\r\n                    let result;\r\n                    if ((result = this.options.prefixes.exec(text)) !== null) {\r\n                        letter = text.charAt(this.options.prefixes.lastIndex).toLowerCase();\r\n                    } else {\r\n                        letter = text.charAt(0).toLowerCase();\r\n                    }\r\n                } else {\r\n                    letter = text.charAt(0).toLowerCase();\r\n                }\r\n                if (letter.match(/[0-9A-Za-z]/)) {\r\n                    if (this.options.concatenateNums) {\r\n                        if (letter.match(/[0-9]/)) {\r\n                            letter = '_';\r\n                        }\r\n                    }\r\n                } else {\r\n                    letter = '-'\r\n                }\r\n\r\n                if (accum[letter]) {\r\n                    accum[letter].push(val)\r\n                } else {\r\n                    accum[letter] = [val];\r\n                }\r\n            }\r\n            return accum;\r\n        }, {});\r\n        if (this.options.initHidden) {\r\n            const initHiddenTextLi = document.createElement('li');\r\n            initHiddenTextLi.className = 'init-hidden-text';\r\n            initHiddenTextLi.textContent = this.options.initHiddenText\r\n            alphaList['initText'] = [initHiddenTextLi];\r\n        }\r\n        return alphaList;\r\n    }\r\n\r\n    _getHeading(key) {\r\n        let headingText = '';\r\n        switch (true) {\r\n            case /^[*]$/.test(key):\r\n                headingText = this.options.allText;\r\n                break;\r\n            case /^[_]$/.test(key):\r\n                headingText = '0 - 9';\r\n                break;\r\n            case /^[-]$/.test(key):\r\n                headingText = 'Others';\r\n                break;\r\n            case /^initText$/.test(key):\r\n                break;\r\n            default:\r\n                headingText = key.toUpperCase();\r\n        }\r\n        return headingText;\r\n    }\r\n\r\n    // generate new list HTML markup\r\n    _generateNewListHTML = (alphaObj) => {\r\n        const wrapper = document.createElement('div');\r\n        wrapper.id = 'alpha-list';\r\n        wrapper.className = 'alpha-list';\r\n        const NewList = Object.keys(alphaObj)\r\n            .sort((a, b) => {\r\n                if (a === '-') return 1;\r\n                if (b === '-') return -1;\r\n                if (a < b)\r\n                    return -1;\r\n                if (a > b)\r\n                    return 1;\r\n                return 0;\r\n            })\r\n            .map((key) => {\r\n                const div = document.createElement('div');\r\n                div.id = key;\r\n                div.className = 'alpha-list-wrapper';\r\n                if (this.options.showLetterHeadings) {\r\n                    const heading = document.createElement('h3');\r\n                    heading.className = 'alpha-list-heading';\r\n                    heading.textContent = this._getHeading(key)\r\n                    if (heading.textContent)\r\n                        div.appendChild(heading);\r\n                }\r\n                const ul = document.createElement('ul');\r\n                ul.className = 'alpha-list-group';\r\n\r\n                alphaObj[key].forEach(node => {\r\n                    ul.appendChild(node.cloneNode(true));\r\n                });\r\n                div.appendChild(ul);\r\n                wrapper.appendChild(div);\r\n                return div;\r\n            });\r\n        const noMatchDiv = document.createElement('div');\r\n        noMatchDiv.id = 'no-match';\r\n        const noMatchUl = document.createElement('ul');\r\n        noMatchUl.className = 'no-match-group';\r\n        const noMatchLi = document.createElement('li');\r\n        noMatchLi.textContent = this.options.noMatchText;\r\n\r\n        noMatchUl.appendChild(noMatchLi);\r\n        noMatchDiv.appendChild(noMatchUl);\r\n        wrapper.appendChild(noMatchDiv);\r\n        return wrapper;\r\n    }\r\n\r\n    // Generate alphabet navigation HTML markup\r\n    _generateAlphaNav = (alphaObj) => {\r\n        const alphaNav = document.createElement('div');\r\n        alphaNav.id = 'alpha-nav';\r\n        alphaNav.className = 'character-container';\r\n        const abcChars = this._getArrayAtoZ();\r\n        if (this.options.includeNums) {\r\n            if (!this.options.concatenateNums) {\r\n                this._getArray0to9().reverse().forEach(val => abcChars.unshift(val.toString()));\r\n            } else {\r\n                abcChars.unshift('_');\r\n            }\r\n        }\r\n        if (this.options.includeOther)\r\n            abcChars.push('-');\r\n        if (this.options.includeAll)\r\n            abcChars.unshift('*')\r\n        //console.log(abcChars);\r\n        const navigationEntries = abcChars.reduce((block, navChar) => {\r\n\r\n            if (alphaObj[navChar.toLowerCase()]) {\r\n                if (navChar === '_') {\r\n                    return block + '<a class=\"character-element\" data-filter=\"' + navChar.toLowerCase() + '\" href=\"#\">0 - 9</a>';\r\n                } else if (navChar === '-') {\r\n                    return block + '<a class=\"character-element\" data-filter=\"' + navChar.toLowerCase() + '\" href=\"#\">...</a>';\r\n                } else {\r\n                    return block + '<a class=\"character-element\" data-filter=\"' + navChar.toLowerCase() + '\" href=\"#\">' + navChar + '</a>';\r\n                }\r\n\r\n            } else if (navChar === '*') {\r\n                return block + '<a class=\"character-element\" data-filter=\"' + navChar.toLowerCase() + '\" href=\"#\">' + this.options.allText + '</a>';\r\n            }\r\n            if (this.options.flagDisabled) {\r\n                if (this.options.removeDisabled) {\r\n                    return block;\r\n                }\r\n                if (navChar === '_') {\r\n                    return block + '<div class=\"character-element disabled\">0 - 9</div>';\r\n                } else if (navChar === '-') {\r\n                    return block + '<div class=\"character-element disabled\">...</div>';\r\n                } else {\r\n                    return block + '<div class=\"character-element disabled\">' + navChar + '</div>';\r\n                }\r\n            }\r\n            return block + '<a class=\"character-element\" data-filter=\"no-match\" href=\"#\">' + navChar + '</a>';\r\n        }, '');\r\n        alphaNav.innerHTML = navigationEntries;\r\n        return alphaNav;\r\n    }\r\n\r\n    // generate array of alphebet, a - z\r\n    _getArrayAtoZ = () => {\r\n        return Array\r\n            .apply(null, { length: 26 })\r\n            .map((x, i) => String.fromCharCode(65 + i));\r\n    }\r\n\r\n    _getArray0to9 = () => {\r\n        return Array\r\n            .apply(null, new Array(10))\r\n            .map((x, i) => i);\r\n    };\r\n\r\n}"],"file":"alphaListNav.js"}