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reinstate the rerun safeguard

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This commit is contained in:
Valentin Boettcher 2020-04-09 18:25:05 +02:00
parent aab8fbc5d3
commit b18a8a7a74
1 changed files with 6 additions and 3 deletions
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9
riot-katex.js
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@ -7,7 +7,7 @@
if (window.hasRun) { if (window.hasRun) {
return; return;
} }
// window.hasRun = true; window.hasRun = true;
/** /**
* Set up math delimiters. * Set up math delimiters.
@ -18,6 +18,10 @@
{left: "\\[", right: "\\]", display: true} {left: "\\[", right: "\\]", display: true}
] ]
/**
* Render math in a node if it hasn't already be done
* and register an event on the edit button.
*/
function renderMath(node) { function renderMath(node) {
let li = node.closest('li'); let li = node.closest('li');
@ -43,18 +47,17 @@
// render with KaTeX as soon as the message appears // render with KaTeX as soon as the message appears
function listen_on_chat_element() { function listen_on_chat_element() {
const chat_elem = document.querySelector('.mx_RoomView_MessageList'); const chat_elem = document.querySelector('.mx_RoomView_MessageList');
//renderMathInElement(chat_elem, math_config);
for(let node of chat_elem.querySelectorAll('.mx_MTextBody')) { for(let node of chat_elem.querySelectorAll('.mx_MTextBody')) {
renderMath(node); renderMath(node);
} }
const callback = function(mutationsList, observer) { const callback = function(mutationsList, observer) {
// Use traditional 'for loops' for IE 11
for(let mutation of mutationsList) { for(let mutation of mutationsList) {
if(mutation.type === 'attributes' && mutation.attributeName === 'class') { if(mutation.type === 'attributes' && mutation.attributeName === 'class') {
let node = mutation.target.querySelector('.mx_MTextBody'); let node = mutation.target.querySelector('.mx_MTextBody');
renderMath(node); renderMath(node);
} }
if (mutation.type === 'childList' && mutation.addedNodes.length > 0) { if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
for(let node of mutation.addedNodes) { for(let node of mutation.addedNodes) {
node = node.querySelector('.mx_MTextBody'); node = node.querySelector('.mx_MTextBody');