511 lines
12 KiB
JavaScript
511 lines
12 KiB
JavaScript
/**
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* @typedef {Object} ExtensionData
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* @property {string[]} commonWords
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* @property {Fix[]} fixes
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* @property {{ domains: string[], tags: string[] }} skips
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* @property {{ backdrops: string[], classes: string[], containers: string[], selectors: string[] }} tokens
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*/
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/**
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* @typedef {Object} ExtensionState
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* @property {boolean} on
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* @property {ExtensionIssue} [issue]
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*/
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/**
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* @typedef {Object} Fix
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* @property {string} action
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* @property {string} domain
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* @property {string} [property]
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* @property {string} selector
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*/
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/**
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* @typedef {Object} RunParams
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* @property {HTMLElement[]} [containers]
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* @property {HTMLElement[]} [elements]
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* @property {boolean} [skipMatch]
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*/
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/**
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* @typedef {Object} GetElementsParams
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* @property {boolean} [filterEarly]
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* @property {HTMLElement} [from]
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*/
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/**
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* @typedef {Object} SetUpParams
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* @property {boolean} [skipRunFn]
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*/
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if (typeof browser === 'undefined') {
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browser = chrome;
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}
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/**
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* @description Actions done by the extension
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* @type {Set<string>}
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*/
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const actions = new Set();
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/**
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* @description Data object with all the necessary information
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* @type {ExtensionData}
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*/
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let { commonWords, fixes, skips, tokens } = {
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commonWords: [],
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fixes: [],
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skips: {
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domains: [],
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tags: [],
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},
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tokens: {
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backdrops: [],
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classes: [],
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selectors: [],
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},
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};
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/**
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* @description Shortcut to send messages to background script
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*/
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const dispatch = browser.runtime.sendMessage;
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/**
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* @description Current hostname
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* @type {string}
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*/
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const hostname = getHostname();
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/**
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* @description Initial visibility state
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* @type {boolean}
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*/
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let initiallyVisible = document.visibilityState === 'visible';
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/**
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* @description Options provided to observer
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* @type {MutationObserverInit}
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*/
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const options = { childList: true, subtree: true };
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/**
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* @description Elements that were already matched and are removable
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* @type {Set<HTMLElement>}
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*/
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const seen = new Set();
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/**
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* @description Extension state
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* @type {ExtensionState}
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*/
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let state = { on: true };
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/**
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* @description Clean DOM
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* @param {Element[]} elements
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* @param {boolean} [skipMatch]
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* @returns {void}
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*/
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function clean(elements, skipMatch) {
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let index = 0;
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const size = 50;
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function chunk() {
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const end = Math.min(index + size, elements.length);
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for (; index < end; index++) {
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const element = elements[index];
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if (match(element, skipMatch)) {
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if (element instanceof HTMLDialogElement) element.close();
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hide(element);
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actions.add(`${Date.now()}`);
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dispatch({ type: 'UPDATE_BADGE', value: actions.size });
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}
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seen.add(element);
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}
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if (index < elements.length) {
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requestAnimationFrame(chunk);
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}
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}
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requestAnimationFrame(chunk);
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}
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/**
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* @description Check if element contains a common word
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* @param {HTMLElement} element
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*/
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function containsCommonWord(element) {
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return !!commonWords.length && !!element.outerHTML.match(new RegExp(commonWords.join('|')));
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}
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/**
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* @description Force a DOM clean in the specific element
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* @param {HTMLElement} from
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* @returns {void}
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*/
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function forceClean(from) {
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const elements = getElements(tokens.selectors, { filterEarly: true, from });
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if (elements.length) {
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fix();
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clean(elements, true);
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}
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}
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/**
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* Get all elements that match the selector
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* @param {string | string[]} [selector]
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* @param {GetElementsParams} [params]
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* @returns {HTMLElement[]}
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*/
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function getElements(selector, params = {}) {
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const { filterEarly, from } = params;
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let result = [];
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if (selector?.length) {
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result = [...(from ?? document).querySelectorAll(selector)];
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if (filterEarly) {
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result = result.flatMap((node) => filterNodeEarly(node));
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}
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}
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return result;
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}
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/**
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* Get all elements with their children that match the selector
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* @param {string | string[]} selector
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* @param {GetElementsParams} [params]
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* @returns {HTMLElement[]}
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*/
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function getElementsWithChildren(selector, params) {
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return getElements(selector, params).flatMap((element) => [element, ...element.children]);
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}
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/**
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* @description Calculate current hostname
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* @returns {string}
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*/
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function getHostname() {
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let hostname = document.location.hostname;
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const referrer = document.referrer;
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if (referrer && window.self !== window.top) {
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hostname = new URL(referrer).hostname;
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}
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return hostname.split('.').slice(-3).join('.').replace('www.', '');
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}
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/**
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* @description Check if an element is visible in the viewport
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* @param {HTMLElement} element
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* @returns {boolean}
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*/
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function isInViewport(element) {
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const styles = window.getComputedStyle(element);
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const height = window.innerHeight || document.documentElement.clientHeight;
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const position = element.getBoundingClientRect();
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const scroll = window.scrollY;
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return (
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position.bottom === position.top ||
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(scroll + position.top <= scroll + height && scroll + position.bottom >= scroll) ||
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styles.animationDuration !== '0s' ||
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styles.transitionDuration !== '0s'
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);
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}
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/**
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* @description Check if element element is removable
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* @param {Element} element
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* @param {boolean} [skipMatch]
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* @returns {boolean}
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*/
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function match(element, skipMatch) {
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if (!tokens.selectors.length || !skips.tags.length) {
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return false;
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}
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if (!(element instanceof HTMLElement) || !element.tagName) {
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return false;
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}
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if (seen.has(element)) {
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return false;
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}
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const tagName = element.tagName.toUpperCase();
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if (skips.tags.includes(tagName)) {
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return false;
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}
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const hasAttributes = !!element.getAttributeNames().filter((x) => x !== 'data-nosnippet').length;
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if (!hasAttributes && !tagName.includes('-')) {
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forceClean(element);
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}
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// 2023-06-10: fix #113 temporarily
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if (element.classList.contains('chat-line__message')) {
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return false;
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}
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// 2024-08-03: fix #701 temporarily
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if (element.classList.contains('sellos')) {
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return false;
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}
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const isDialog = tagName === 'DIALOG' && element.getAttribute('open') === 'true';
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const isFakeDialog = tagName === 'DIV' && element.className.includes('cmp');
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return (
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(isDialog || isFakeDialog || isInViewport(element)) &&
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(skipMatch || element.matches(tokens.selectors))
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);
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}
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/**
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* @description Filter early nodes
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* @param {Node} node
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* @param {boolean} stopRecursion
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* @returns {HTMLElement[]}
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*/
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function filterNodeEarly(node, stopRecursion) {
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if (node.nodeType !== Node.ELEMENT_NODE || !(node instanceof HTMLElement)) {
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return [];
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}
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if (commonWords && containsCommonWord(node) && !stopRecursion) {
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return [node, ...[...node.children].flatMap((node) => filterNodeEarly(node, true))];
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}
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return [node];
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}
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/**
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* @description Fix data, middle consent page and scroll issues
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* @returns {void}
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*/
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function fix() {
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const backdrops = getElements(tokens.backdrops);
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const domains = skips.domains.map((x) => (x.split('.').length < 3 ? `*${x}` : x));
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for (const backdrop of backdrops) {
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if (backdrop.children.length === 0 && !seen.has(backdrop)) {
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actions.add(`${Date.now()}`);
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seen.add(backdrop);
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hide(backdrop);
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}
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}
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if (domains.every((x) => !hostname.match(x.replaceAll(/\*/g, '[^ ]*')))) {
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for (const element of [document.body, document.documentElement]) {
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element?.classList.remove(...(tokens.classes ?? []));
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element?.style.setProperty('position', 'initial', 'important');
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element?.style.setProperty('overflow-y', 'initial', 'important');
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}
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}
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for (const fix of fixes) {
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const { action, domain, property, selector } = fix;
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if (hostname.includes(domain)) {
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switch (action) {
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case 'click': {
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const element = document.querySelector(selector);
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actions.add('click');
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element?.click();
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break;
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}
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case 'remove': {
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const element = document.querySelector(selector);
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actions.add('remove');
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element?.style?.removeProperty(property);
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break;
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}
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case 'reload': {
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window.location.reload();
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break;
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}
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case 'reset': {
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const element = document.querySelector(selector);
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actions.add('reset');
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element?.style?.setProperty(property, 'initial', 'important');
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break;
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}
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case 'resetAll': {
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const elements = getElements(selector);
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actions.add('resetAll');
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elements.forEach((e) => e?.style?.setProperty(property, 'initial', 'important'));
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break;
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}
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}
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}
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}
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const ionRouterOutlet = document.getElementsByTagName('ion-router-outlet')[0];
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if (ionRouterOutlet) {
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actions.add('ion-router-outlet');
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// 2024-08-02: fix #644 temporarily
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ionRouterOutlet.removeAttribute('inert');
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}
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const t4Wrapper = document.getElementsByClassName('t4-wrapper')[0];
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if (t4Wrapper) {
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actions.add('t4-wrapper');
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// 2024-09-12: fix #945 temporarily
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t4Wrapper.removeAttribute('inert');
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}
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dispatch({ type: 'UPDATE_BADGE', value: actions.size });
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}
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/**
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* @description Hide DOM element
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* @param {HTMLElement} element
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* @returns {void}
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*/
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function hide(element) {
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element.style.setProperty('clip-path', 'circle(0px)', 'important');
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element.style.setProperty('display', 'none', 'important');
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element.style.setProperty('height', '0px', 'important');
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element.style.setProperty('overflow', 'hidden', 'important');
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element.style.setProperty('transform', 'scale(0)', 'important');
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}
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/**
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* @description Clean DOM when this function is called
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* @param {RunParams} [params]
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* @returns {void}
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*/
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function run(params = {}) {
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const { containers, elements, skipMatch } = params;
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if (document.body?.children.length && state.on && tokens.selectors.length) {
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fix();
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if (elements?.length) {
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clean(elements, skipMatch);
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}
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if (elements === undefined && containers?.length) {
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clean(containers.flatMap((x) => getElementsWithChildren(x, { filterEarly: true })));
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}
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}
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}
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/**
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* @async
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* @description Set up the extension
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* @param {SetUpParams} [params]
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*/
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async function setUp(params = {}) {
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state = (await dispatch({ hostname, type: 'GET_STATE' })) ?? state;
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dispatch({ type: 'ENABLE_POPUP' });
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if (state.on) {
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const data = await dispatch({ hostname, type: 'GET_DATA' });
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commonWords = data?.commonWords ?? commonWords;
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fixes = data?.fixes ?? fixes;
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skips = data?.skips ?? skips;
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tokens = data?.tokens ?? tokens;
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dispatch({ hostname, type: 'ENABLE_ICON' });
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dispatch({ type: 'UPDATE_BADGE', value: actions.size });
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observer.observe(document.body ?? document.documentElement, options);
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if (!params.skipRunFn) run({ containers: tokens.containers });
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} else {
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dispatch({ type: 'DISABLE_ICON' });
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dispatch({ type: 'UPDATE_BADGE', value: actions.size });
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observer.disconnect();
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}
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}
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/**
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* @description Wait for the body to exist
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* @param {void} callback
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* @returns {void}
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*/
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async function setUpAfterWaitForBody() {
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if (document.body) {
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await setUp();
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} else {
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setTimeout(setUpAfterWaitForBody, 50);
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}
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}
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/**
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* @description Mutation Observer instance
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* @type {MutationObserver}
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*/
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const observer = new MutationObserver((mutations) => {
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if (!state.on || !tokens.selectors.length) {
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return;
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}
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const nodes = mutations.flatMap((mutation) => [...mutation.addedNodes]);
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const elements = nodes.flatMap((node) => filterNodeEarly(node));
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run({ elements });
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});
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/**
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* @description Listen to messages from any other scripts
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* @listens browser.runtime#onMessage
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*/
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browser.runtime.onMessage.addListener(async (message) => {
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switch (message.type) {
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case 'INCREASE_ACTIONS_COUNT': {
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actions.add(`${Date.now()}`);
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break;
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}
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}
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});
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/**
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* @description Fix bfcache issues
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* @listens window#pageshow
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* @returns {void}
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*/
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window.addEventListener('pageshow', async (event) => {
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if (document.visibilityState === 'visible' && event.persisted) {
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await setUp();
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}
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});
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/**
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* @async
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* @description Run if the page wasn't visited yet
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* @listens window#visibilitychange
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* @returns {void}
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*/
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window.addEventListener('visibilitychange', async () => {
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if (document.visibilityState === 'visible' && !initiallyVisible) {
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initiallyVisible = true;
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await setUp();
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}
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});
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/**
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* @description Run as soon as possible, if the user is in front of the page
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*/
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if (document.visibilityState === 'visible') {
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setUpAfterWaitForBody();
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}
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