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Embed js height fix (#22141) 

* only begin iframe reheight once document state is complete

* format

* lint fixes

* Update public/embed.js to use readystatechange event listener

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

* Call loaded() if ready, otherwise add listenter

* lint fix

Co-authored-by: Claire <claire.github-309c@sitedethib.com>
lolsob-rspec
Matt Hodges 2022-12-15 09:18:59 -06:00 committed by GitHub
parent 4afb0ba152
commit 7ea3a33c86
1 changed files with 13 additions and 9 deletions
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22
public/embed.js
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@ -1,24 +1,28 @@
// @ts-check
(function() {
(function () {
'use strict';
/**
* @param {() => void} loaded
*/
var ready = function(loaded) {
if (['interactive', 'complete'].indexOf(document.readyState) !== -1) {
var ready = function (loaded) {
if (document.readyState === 'complete') {
loaded();
} else {
document.addEventListener('DOMContentLoaded', loaded);
document.addEventListener('readystatechange', function () {
if (document.readyState === 'complete') {
loaded();
}
});
}
};
ready(function() {
ready(function () {
/** @type {Map<number, HTMLIFrameElement>} */
var iframes = new Map();
window.addEventListener('message', function(e) {
window.addEventListener('message', function (e) {
var data = e.data || {};
if (typeof data !== 'object' || data.type !== 'setHeight' || !iframes.has(data.id)) {
@ -34,7 +38,7 @@
iframe.height = data.height;
});
[].forEach.call(document.querySelectorAll('iframe.mastodon-embed'), function(iframe) {
[].forEach.call(document.querySelectorAll('iframe.mastodon-embed'), function (iframe) {
// select unique id for each iframe
var id = 0, failCount = 0, idBuffer = new Uint32Array(1);
while (id === 0 || iframes.has(id)) {
@ -49,10 +53,10 @@
iframes.set(id, iframe);
iframe.scrolling = 'no';
iframe.scrolling = 'no';
iframe.style.overflow = 'hidden';
iframe.onload = function() {
iframe.onload = function () {
iframe.contentWindow.postMessage({
type: 'setHeight',
id: id,