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'use strict';
function getPos(element) {
/* Element.getBoundingClientRect()
* Return box of the element relatively to viewport.
*/
const rect = element.getBoundingClientRect();
/* The properties window.scrollX and window.scrollY
* return the viewport position relatively to the document
*/
return {
x: rect.left + window.scrollX,
y: rect.top + window.scrollY,
};
}
const getTop = element => element.offsetTop + (element.offsetParent && getTop(element.offsetParent));
let sidenotes = undefined;
const resize = () => {
for (const sidenote of sidenotes) {
if (sidenote.offsetWidth < 200 || window.screen.width < 1400) {
sidenote.innerHTML = '';
return;
}
const articleRef = sidenote.attributes.for.value;
const article = document.querySelector(`#${articleRef}`);
console.log(article, articleRef);
const notes = Array.from(article.querySelectorAll('li'))
.filter(element => element.id.startsWith('user-content-fn'));
const newSidenotes = notes.map(sidenoteLi => {
const div = document.createElement('div');
const refName = sidenoteLi.querySelector('.data-footnote-backref').attributes.href.value;
const refSideNode = article.querySelector(refName);
const sup = document.createElement('sup');
sup.textContent = refSideNode.textContent + ' ';
for (const element of sidenoteLi.children) {
const child = element.cloneNode(true);
div.append(child);
}
div.children[0].prepend(sup);
div.style.top = `${getPos(refSideNode).y}px`;
div.classList.add('sidenote');
return div;
});
sidenote.replaceChildren(...newSidenotes);
if (sidenote.offsetWidth < 100 || window.screen.width < 1400) {
sidenote.innerHTML = '';
return;
}
}
};
if (sidenotes.length > 0) {
new ResizeObserver(resize).observe(sidenotes[0])
}
// window.addEventListener('resize', resize);
window.addEventListener('DOMContentLoaded') () => {
};
window.addEventListener('DOMContentLoaded', () => {
if(document.querySelectorAll('.math-display').length > 0) {
document.head.innerHTML += '<link href="/s/css/katex.css" rel="stylesheet"/>';
}
});
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