140 lines
5.1 KiB
JavaScript
140 lines
5.1 KiB
JavaScript
import { Handler } from 'assets/csspageweaver/lib/paged.esm.js';
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export default class createIndex extends Handler {
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constructor(chunker, polisher, caller) {
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super(chunker, polisher, caller);
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}
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beforeParsed(content) {
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newIndex({
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content: content,
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spanClassIndex: '.book-index',
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indexElement: '#book-index',
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alphabet: true
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});
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}
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}
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function newIndex(config){
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const content = config.content;
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let indexElements = content.querySelectorAll(config.spanClassIndex);
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let arrayIndex = [];
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let num = 0;
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for(let i = 0; i < indexElements.length; ++i){
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let indexElement = indexElements[i];
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// create array with all data-book-index
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let indexKey = indexElement.dataset.bookIndex;
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let indexKeyFirst = indexKey.slice(0, 1);
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let newIndexKey;
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if(indexKeyFirst == "<"){
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if(indexKey.slice(0, 3) == "<i>"){
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newIndexKey = indexKey.replace("<i>", "") + "-iTemp";
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}else if(indexKey.slice(0, 4) == "<em>"){
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newIndexKey = indexKey.replace("<em>", "") + "-emTemp";
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}
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}else{
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newIndexKey = indexKey;
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}
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arrayIndex.push(newIndexKey);
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// create id for span whithout
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num++;
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if(indexElement.id == ''){ indexElement.id = 'book-index-' + num; }
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}
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// filter array to remove dublicate and sort by alphabetical order
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let newArrayIndex = arrayIndex.filter(onlyUnique).sort(function(a,b) {
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a = a.toLowerCase();
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b = b.toLowerCase();
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if( a == b) return 0;
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return a < b ? -1 : 1;
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});
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// create <ul> element for the index
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let indexElementDiv = content.querySelector(config.indexElement);
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if(indexElementDiv != null){
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let indexUl = document.createElement("ul");
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indexUl.id = "list-index-generated";
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indexElementDiv.appendChild(indexUl);
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// create <li> element for the index
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for(var a = 0; a < newArrayIndex.length; a++){
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// create alphabet
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if(config.alphabet){
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let z = a - 1;
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let firstLetter = newArrayIndex[a].toUpperCase().slice(0, 1);
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if(a == 0){
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let alphabetLiFirst = document.createElement("li");
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alphabetLiFirst.classList.add("list-alphabet-element");
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alphabetLiFirst.id = "alphabet-element-" + firstLetter;
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alphabetLiFirst.innerHTML = firstLetter;
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indexUl.appendChild(alphabetLiFirst);
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}
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if(z >= 0){
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let firstLetterPrevious = newArrayIndex[z].toUpperCase().slice(0, 1);
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if(firstLetter != firstLetterPrevious){
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let alphabetLi = document.createElement("li");
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alphabetLi.classList.add("list-alphabet-element");
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alphabetLi.id = "alphabet-element-" + firstLetter;
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alphabetLi.innerHTML = firstLetter;
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indexUl.appendChild(alphabetLi);
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}
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}
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}
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// create <li> element for the index
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let indexNewLi = document.createElement("li");
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indexNewLi.classList.add("list-index-element");
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let dataIndex;
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if(newArrayIndex[a].substr(newArrayIndex[a].length - 6) == "-iTemp"){
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dataIndex = "<i>" + newArrayIndex[a].replace("-iTemp", "");
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}else if(newArrayIndex[a].substr(newArrayIndex[a].length - 7) == "-emTemp"){
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dataIndex = "<em>" + newArrayIndex[a].replace("-emTemp", "");
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}else{
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dataIndex = newArrayIndex[a];
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}
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indexNewLi.dataset.listIndex = dataIndex;
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indexUl.appendChild(indexNewLi);
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}
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let indexLi = content.getElementById('list-index-generated').getElementsByClassName('list-index-element');
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for(var n = 0; n < indexLi.length; n++){
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// find data and add HTML of the list
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let dataIndex = indexLi[n].dataset.listIndex;
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let spanIndex = content.querySelectorAll("[data-book-index='" + dataIndex + "']");
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indexLi[n].innerHTML = '<span class="index-value">' + dataIndex + '</span><span class="links-pages"></span>';
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// add span for link page
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spanIndex.forEach(function(elem) {
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let spanIndexId = elem.id;
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let spanPage = document.createElement("span");
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spanPage.classList.add("link-page");
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spanPage.innerHTML = '<a href="#' + spanIndexId + '"></a>';
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indexLi[n].getElementsByClassName('links-pages')[0].appendChild(spanPage);
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});
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}
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}
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}
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// function for filter array to remove dublicate
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function onlyUnique(value, index, self) {
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return self.indexOf(value) === index;
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}
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