Chatwoot/app/javascript/sdk/DOMHelpers.js

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import { SDK_CSS } from '../widget/assets/scss/sdk';
export const loadCSS = () => {
const css = document.createElement('style');
css.type = 'text/css';
css.innerHTML = `${SDK_CSS}`;
document.body.appendChild(css);
};
export const wootOn = (elm, event, fn) => {
if (document.addEventListener) {
elm.addEventListener(event, fn, false);
} else if (document.attachEvent) {
// <= IE 8 loses scope so need to apply, we add this to object so we
// can detach later (can't detach anonymous functions)
// eslint-disable-next-line
elm[event + fn] = function() {
// eslint-disable-next-line
return fn.apply(elm, arguments);
};
elm.attachEvent(`on${event}`, elm[event + fn]);
}
};
export const classHelper = (classes, action, elm) => {
let search;
let replace;
let i;
let has = false;
if (classes) {
// Trim any whitespace
const classarray = classes.split(/\s+/);
for (i = 0; i < classarray.length; i += 1) {
search = new RegExp(`\\b${classarray[i]}\\b`, 'g');
replace = new RegExp(` *${classarray[i]}\\b`, 'g');
if (action === 'remove') {
// eslint-disable-next-line
elm.className = elm.className.replace(replace, '');
} else if (action === 'toggle') {
// eslint-disable-next-line
elm.className = elm.className.match(search)
? elm.className.replace(replace, '')
: `${elm.className} ${classarray[i]}`;
} else if (action === 'has') {
if (elm.className.match(search)) {
has = true;
break;
}
}
}
}
return has;
};
export const addClass = (elm, classes) => {
if (classes) {
elm.className += ` ${classes}`;
}
};
export const toggleClass = (elm, classes) => {
classHelper(classes, 'toggle', elm);
};