54 lines
2.4 KiB
JavaScript
54 lines
2.4 KiB
JavaScript
window.addEventListener('load', () => {
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const tutorialWrapper = document.getElementById('faq-wrapper');
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new Promise((resolve, reject) => {
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const ajax = new XMLHttpRequest();
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ajax.onreadystatechange = () => {
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if (ajax.readyState !== 4) { return; }
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if (ajax.status === 404) {
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reject("Sorry, the tutorial is not available in that language yet.");
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return;
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}
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if (ajax.status !== 200) {
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reject("Something went wrong while loading the tutorial.");
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return;
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}
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resolve(ajax.responseText);
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};
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ajax.open('GET', `${window.location.origin}/static/assets/faq/` +
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`faq_${tutorialWrapper.getAttribute('data-lang')}.md`, true);
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ajax.send();
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}).then((results) => {
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// Populate page with HTML generated from markdown
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showdown.setOption('tables', true);
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showdown.setOption('strikethrough', true);
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showdown.setOption('literalMidWordUnderscores', true);
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tutorialWrapper.innerHTML += (new showdown.Converter()).makeHtml(results);
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adjustHeaderWidth();
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// Reset the id of all header divs to something nicer
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const headers = Array.from(document.querySelectorAll('h1, h2, h3, h4, h5, h6'));
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const scrollTargetIndex = window.location.href.search(/#[A-z0-9-_]*$/);
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for (let i=0; i < headers.length; i++){
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const headerId = headers[i].innerText.replace(/[ ]/g,'-').toLowerCase()
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headers[i].setAttribute('id', headerId);
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headers[i].addEventListener('click', () =>
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window.location.href = window.location.href.substring(0, scrollTargetIndex) + `#${headerId}`);
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}
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// Manually scroll the user to the appropriate header if anchor navigation is used
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if (scrollTargetIndex > -1) {
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try{
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const scrollTarget = window.location.href.substring(scrollTargetIndex + 1);
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document.getElementById(scrollTarget).scrollIntoView({ behavior: "smooth" });
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} catch(error) {
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console.error(error);
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}
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}
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}).catch((error) => {
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console.error(error);
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tutorialWrapper.innerHTML =
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`<h2>This page is out of logic!</h2>
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<h3>Click <a href="${window.location.origin}">here</a> to return to safety.</h3>`;
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});
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});
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