Edit File by line

(function() {

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const pages = {};

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document.addEventListener('DOMContentLoaded', function () {

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const wrappers = document.querySelectorAll('.netsposts-screen.ajax_load');

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for(const parentPostWrapper of wrappers) {

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attachNavigationClickListeners(parentPostWrapper);

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}

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});

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function setWrapperId(wrapper){

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const id = Math.round(Math.random() * 1000) + 1;

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wrapper.setAttribute('data-id', id);

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return id;

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}

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function attachNavigationClickListeners(wrapper){

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const paginationLinks = wrapper.querySelectorAll('.netsposts-paginate a.page-numbers');

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for (const link of paginationLinks) {

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link.addEventListener('click', handlePaginationLinkClick);

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}

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}

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function handlePaginationLinkClick(e){

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e.preventDefault();

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const link = e.target;

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const url = link.getAttribute('href');

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const parent = link.parentElement.parentElement.parentElement;

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loadPosts(url, parent);

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}

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function loadPosts(url, parentScreen){

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showPreloader(parentScreen);

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let currentPostWrapper = parentScreen.querySelector('.netsposts-block-wrapper.current');

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const parentScreenId = parentScreen.getAttribute('id');

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if(isPageLoaded(parentScreenId, url)){

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setTimeout(function(){

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// Hide previous page

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currentPostWrapper.classList.add('hidden');

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currentPostWrapper.classList.remove('current');

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* Assign and show the new page.

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const pageId = pages[parentScreenId][url];

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const selector = ".netsposts-block-wrapper[data-id='" + pageId + "']";

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const nextParentPostWrapper = parentScreen.querySelector(selector);

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nextParentPostWrapper.classList.remove('hidden');

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nextParentPostWrapper.classList.add('current');

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hidePreloader(parentScreen);

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}, 200);

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} else {

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getPageDoc(url).then(function (pageDoc) {

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const postWrapperSelector = '#' + parentScreenId + ' > .netsposts-block-wrapper';

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const wrapper = pageDoc.querySelector(postWrapperSelector);

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if(!pages[parentScreenId]){

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pages[parentScreenId] = {};

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}

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pages[parentScreenId][url] = setWrapperId(wrapper);

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currentPostWrapper.classList.add('hidden');

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currentPostWrapper.classList.remove('current');

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const preloader = parentScreen.querySelector('.netsposts-preloader');

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parentScreen.insertBefore(wrapper, preloader);

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attachNavigationClickListeners(wrapper);

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hidePreloader(parentScreen);

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});

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}

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//window.history.pushState({}, document.title, url);

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}

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function showPreloader(parent){

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const preloader = parent.querySelector('.netsposts-preloader');

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preloader.classList.remove('hidden');

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}

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function hidePreloader(parent){

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const preloader = parent.querySelector('.netsposts-preloader');

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preloader.classList.add('hidden');

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}

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function isPageLoaded(screenId, url){

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return pages.hasOwnProperty(screenId) && pages[screenId].hasOwnProperty(url);

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}

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function getPageDoc(url){

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return loadPage(url).then(pageContent => {

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const loadedDoc = document.implementation.createHTMLDocument();

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loadedDoc.documentElement.innerHTML = pageContent;

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return loadedDoc;

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});

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}

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function loadPage(url){

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return fetch(url).then(response => response.text());

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}

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})();

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