121 lines
3.7 KiB
JavaScript
121 lines
3.7 KiB
JavaScript
/**
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* @name Table of content
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* @author Julie Blanc <contact@julie-blanc.fr>
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* @see { @link https://gitlab.com/csspageweaver/plugins/table_of_content/ }
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*/
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import { Handler } from '/csspageweaver/lib/paged.esm.js';
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export default class tableOfContent extends Handler {
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constructor(chunker, polisher, caller) {
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super(chunker, polisher, caller);
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this.tocContainer = cssPageWeaver.features.tableOfContent.parameters?.tocContainer || "#toc_container";
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this.tocTitles = cssPageWeaver.features.tableOfContent.parameters?.tocTitles || ["h1", "h2"];
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this.beforePageNumber = cssPageWeaver.features.tableOfContent.parameters?.beforePageNumber;
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this.position = cssPageWeaver.features.tableOfContent.parameters?.position;
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}
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beforeParsed(content) {
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createToc({
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content: content,
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container: this.tocContainer,
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titleElements: this.tocTitles,
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position: this.position
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});
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}
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}
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function createToc(config) {
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const content = config.content;
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const tocElement = config.container;
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const titleElements = config.titleElements;
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let tocElementDiv = content.querySelector(tocElement)
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if(!tocElementDiv) return console.warn('couldn’t start the toc')
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tocElementDiv.innerHTML = ''
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let tocUl = document.createElement('ul')
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tocUl.id = 'list-toc-generated'
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if(config.before){
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tocUl.style.setProperty('--before-page', '"' + config.before + '"');
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}
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tocElementDiv.appendChild(tocUl)
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// add class to all title elements
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let tocElementNbr = 0
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for (var i = 0; i < titleElements.length; i++) {
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let titleHierarchy = i + 1
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let titleElement = content.querySelectorAll(titleElements[i])
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titleElement.forEach(function (element) {
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// check if shouldbe shown
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if (
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!element.classList.contains('toc-ignore') ||
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!element.classList.contains('toc-ignore')
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) {
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// add classes to the element
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element.classList.add('title-element')
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element.setAttribute('data-title-level', titleHierarchy)
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// add an id if doesn't exist
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tocElementNbr++
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if (element.id == '') {
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element.id = 'title-element-' + tocElementNbr
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}
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let newIdElement = element.id
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}
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})
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}
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// create toc list
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let tocElements = content.querySelectorAll('.title-element')
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for (var i = 0; i < tocElements.length; i++) {
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let tocElement = tocElements[i]
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let tocNewLi = document.createElement('li')
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// Add class for the hierarcy of toc
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tocNewLi.classList.add('toc-element')
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tocNewLi.classList.add('toc-element-level-' + tocElement.dataset.titleLevel)
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let classes = [
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...(tocElement.className ? tocElement.className.split(' ') : []),
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...(tocElement.closest('section')?.className ? tocElement.closest('section')?.className.split(' ') : []),
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];
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classes.forEach((meta) => {
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if (!meta || meta === 'title-element') return;
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tocNewLi.classList.add(`toc-${meta}`);
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});
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//get the exisiting class
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// Keep class of title elements
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let classTocElement = tocElement.classList
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for (var n = 0; n < classTocElement.length; n++) {
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if (classTocElement[n] != 'title-element') {
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tocNewLi.classList.add(classTocElement[n])
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}
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}
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if(config.position && config.position === "before"){
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tocNewLi.innerHTML =
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'<a class="toc-page-before" href="#' + tocElement.id + '">' + tocElement.innerHTML + '</a>';
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}else{
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tocNewLi.innerHTML =
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'<a class="toc-page-after" href="#' + tocElement.id + '">' + tocElement.innerHTML + '</a>';
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}
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tocUl.appendChild(tocNewLi)
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}
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}
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