☰

Twitter Click'n'Save

Add buttons to download images and videos in Twitter, also does some other enhancements.

当前为 2023-12-18 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        Twitter Click'n'Save
  3. // @version     1.9.0-2023.12.18
  4. // @namespace   gh.alttiri
  5. // @description Add buttons to download images and videos in Twitter, also does some other enhancements.
  6. // @match       https://twitter.com/*
  7. // @homepageURL https://github.com/AlttiRi/twitter-click-and-save
  8. // @supportURL  https://github.com/AlttiRi/twitter-click-and-save/issues
  9. // @license     GPL-3.0
  10. // @grant       GM_registerMenuCommand
  11. // ==/UserScript==
  12. // ---------------------------------------------------------------------------------------------------------------------
  13. // ---------------------------------------------------------------------------------------------------------------------
  14.  
  15. // Please, report bugs and suggestions on GitHub, not Greasyfork.
  16. // --> https://github.com/AlttiRi/twitter-click-and-save/issues <--
  17.  
  18. // ---------------------------------------------------------------------------------------------------------------------
  19. // ---------------------------------------------------------------------------------------------------------------------
  20. // --- "Imports" --- //
  21.  
  22. const {StorageNames, StorageNamesOld} = getStorageNames();
  23.  
  24. const {verbose, debugPopup} = getDebugSettings(); // --- For debug --- //
  25.  
  26.  
  27. const {
  28.     sleep, fetchResource, downloadBlob,
  29.     addCSS,
  30.     getCookie,
  31.     throttle,
  32.     xpath, xpathAll,
  33.     responseProgressProxy,
  34.     dateToDayDateString,
  35.     toLineJSON,
  36.     isFirefox,
  37.     getBrowserName,
  38.     removeSearchParams,
  39. } = getUtils({verbose});
  40.  
  41. const LS = hoistLS({verbose});
  42.  
  43. const API = hoistAPI();
  44. const Tweet = hoistTweet();
  45. const Features = hoistFeatures();
  46. const I18N = getLanguageConstants();
  47.  
  48. // ---------------------------------------------------------------------------------------------------------------------
  49.  
  50. function getStorageNames() {
  51.     // New LocalStorage key names 2023.07.05
  52.     const StorageNames = {
  53.         settings:                "ujs-twitter-click-n-save-settings",
  54.         settingsImageHistoryBy:  "ujs-twitter-click-n-save-settings-image-history-by",
  55.         downloadedImageNames:    "ujs-twitter-click-n-save-downloaded-image-names",
  56.         downloadedImageTweetIds: "ujs-twitter-click-n-save-downloaded-image-tweet-ids",
  57.         downloadedVideoTweetIds: "ujs-twitter-click-n-save-downloaded-video-tweet-ids",
  58.  
  59.         migrated:                "ujs-twitter-click-n-save-migrated",     // Currently unused
  60.         browserName:             "ujs-twitter-click-n-save-browser-name", // Hidden settings
  61.         verbose:                 "ujs-twitter-click-n-save-verbose",      // Hidden settings for debug
  62.         debugPopup:              "ujs-twitter-click-n-save-debug-popup",  // Hidden settings for debug
  63.     };
  64.     const StorageNamesOld = {
  65.         settings:                "ujs-click-n-save-settings",
  66.         settingsImageHistoryBy:  "ujs-images-history-by",
  67.         downloadedImageNames:    "ujs-twitter-downloaded-images-names",
  68.         downloadedImageTweetIds: "ujs-twitter-downloaded-image-tweet-ids",
  69.         downloadedVideoTweetIds: "ujs-twitter-downloaded-video-tweet-ids",
  70.     };
  71.     return {StorageNames, StorageNamesOld};
  72. }
  73.  
  74. function getDebugSettings() {
  75.     let verbose    = false;
  76.     let debugPopup = false;
  77.     try {
  78.         verbose    = Boolean(JSON.parse(localStorage.getItem(StorageNames.verbose)));
  79.     } catch (err) {}
  80.     try {
  81.         debugPopup = Boolean(JSON.parse(localStorage.getItem(StorageNames.debugPopup)));
  82.     } catch (err) {}
  83.  
  84.     return {verbose, debugPopup};
  85. }
  86.  
  87. const historyHelper = getHistoryHelper();
  88. historyHelper.migrateLocalStore();
  89.  
  90. // ---------------------------------------------------------------------------------------------------------------------
  91.  
  92.  
  93. // ---------------------------------------------------------------------------------------------------------------------
  94.  
  95. if (globalThis.GM_registerMenuCommand /* undefined in Firefox with VM */ || typeof GM_registerMenuCommand === "function") {
  96.     GM_registerMenuCommand("Show settings", showSettings);
  97. }
  98.  
  99. const settings = loadSettings();
  100.  
  101. if (verbose) {
  102.     console.log("[ujs][settings]", settings);
  103. }
  104. if (debugPopup) {
  105.     showSettings();
  106. }
  107.  
  108. // ---------------------------------------------------------------------------------------------------------------------
  109.  
  110. const fetch = ujs_getGlobalFetch({verbose, strictTrackingProtectionFix: settings.strictTrackingProtectionFix});
  111.  
  112. function ujs_getGlobalFetch({verbose, strictTrackingProtectionFix} = {}) {
  113.     const useFirefoxStrictTrackingProtectionFix = strictTrackingProtectionFix === undefined ? true : strictTrackingProtectionFix; // Let's use by default
  114.     const useFirefoxFix = useFirefoxStrictTrackingProtectionFix && typeof wrappedJSObject === "object" && typeof wrappedJSObject.fetch === "function";
  115.     // --- [VM/GM + Firefox ~90+ + Enabled "Strict Tracking Protection"] fix --- //
  116.     function fixedFirefoxFetch(resource, init = {}) {
  117.         verbose && console.log("[ujs][wrappedJSObject.fetch]", resource, init);
  118.         if (init.headers instanceof Headers) {
  119.             // Since `Headers` are not allowed for structured cloning.
  120.             init.headers = Object.fromEntries(init.headers.entries());
  121.         }
  122.         return wrappedJSObject.fetch(cloneInto(resource, document), cloneInto(init, document));
  123.     }
  124.     return useFirefoxFix ? fixedFirefoxFetch : globalThis.fetch;
  125. }
  126.  
  127. // ---------------------------------------------------------------------------------------------------------------------
  128. // --- Features to execute --- //
  129.  
  130. const doNotPlayVideosAutomatically = false; // Hidden settings
  131.  
  132. function execFeaturesOnce() {
  133.     settings.goFromMobileToMainSite         && Features.goFromMobileToMainSite();
  134.     settings.addRequiredCSS                 && Features.addRequiredCSS();
  135.     settings.hideSignUpBottomBarAndMessages && Features.hideSignUpBottomBarAndMessages(doNotPlayVideosAutomatically);
  136.     settings.hideTrends                     && Features.hideTrends();
  137.     settings.highlightVisitedLinks          && Features.highlightVisitedLinks();
  138.     settings.hideLoginPopup                 && Features.hideLoginPopup();
  139. }
  140. function execFeaturesImmediately() {
  141.     settings.expandSpoilers     && Features.expandSpoilers();
  142. }
  143. function execFeatures() {
  144.     settings.imagesHandler      && Features.imagesHandler();
  145.     settings.videoHandler       && Features.videoHandler();
  146.     settings.expandSpoilers     && Features.expandSpoilers();
  147.     settings.hideSignUpSection  && Features.hideSignUpSection();
  148.     settings.directLinks        && Features.directLinks();
  149.     settings.handleTitle        && Features.handleTitle();
  150. }
  151.  
  152. // ---------------------------------------------------------------------------------------------------------------------
  153.  
  154. // ---------------------------------------------------------------------------------------------------------------------
  155. // --- Script runner --- //
  156.  
  157. (function starter(feats) {
  158.     const {once, onChangeImmediate, onChange} = feats;
  159.  
  160.     once();
  161.     onChangeImmediate();
  162.     const onChangeThrottled = throttle(onChange, 250);
  163.     onChangeThrottled();
  164.  
  165.     const targetNode = document.querySelector("body");
  166.     const observerOptions = {
  167.         subtree: true,
  168.         childList: true,
  169.     };
  170.     const observer = new MutationObserver(callback);
  171.     observer.observe(targetNode, observerOptions);
  172.  
  173.     function callback(mutationList, _observer) {
  174.         verbose && console.log("[ujs][mutationList]", mutationList);
  175.         onChangeImmediate();
  176.         onChangeThrottled();
  177.     }
  178. })({
  179.     once: execFeaturesOnce,
  180.     onChangeImmediate: execFeaturesImmediately,
  181.     onChange: execFeatures
  182. });
  183.  
  184. // ---------------------------------------------------------------------------------------------------------------------
  185. // ---------------------------------------------------------------------------------------------------------------------
  186.  
  187. function loadSettings() {
  188.     const defaultSettings = {
  189.         hideTrends: true,
  190.         hideSignUpSection: false,
  191.         hideSignUpBottomBarAndMessages: false,
  192.         doNotPlayVideosAutomatically: false,
  193.         goFromMobileToMainSite: false,
  194.  
  195.         highlightVisitedLinks: true,
  196.         highlightOnlySpecialVisitedLinks: true,
  197.         expandSpoilers: true,
  198.  
  199.         directLinks: true,
  200.         handleTitle: true,
  201.  
  202.         imagesHandler: true,
  203.         videoHandler: true,
  204.         addRequiredCSS: true,
  205.  
  206.         hideLoginPopup: false,
  207.         addBorder: false,
  208.  
  209.         downloadProgress: true,
  210.         strictTrackingProtectionFix: false,
  211.     };
  212.  
  213.     let savedSettings;
  214.     try {
  215.         savedSettings = JSON.parse(localStorage.getItem(StorageNames.settings)) || {};
  216.     } catch (err) {
  217.         console.error("[ujs][parse-settings]", err);
  218.         localStorage.removeItem(StorageNames.settings);
  219.         savedSettings = {};
  220.     }
  221.     savedSettings = Object.assign(defaultSettings, savedSettings);
  222.     return savedSettings;
  223. }
  224. function showSettings() {
  225.     closeSetting();
  226.     if (window.scrollY > 0) {
  227.         document.querySelector("html").classList.add("ujs-scroll-initial");
  228.         document.body.classList.add("ujs-scrollbar-width-margin-right");
  229.     }
  230.     document.body.classList.add("ujs-no-scroll");
  231.  
  232.     const modalWrapperStyle = `
  233.     width: 100%;
  234.     height: 100%;
  235.     position: fixed;
  236.     display: flex;
  237.     justify-content: center;
  238.     align-items: center;
  239.     z-index: 99999;
  240.     backdrop-filter: blur(4px);
  241.     background-color: rgba(255, 255, 255, 0.5);
  242.   `;
  243.     const modalSettingsStyle = `
  244.     background-color: white;
  245.     min-width: 320px;
  246.     min-height: 320px;
  247.     border: 1px solid darkgray;
  248.     padding: 8px;
  249.     box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  250.   `;
  251.     const s = settings;
  252.     const downloadProgressFFTitle = `Disable the download progress if you use Firefox with "Enhanced Tracking Protection" set to "Strict" and ViolentMonkey, or GreaseMonkey extension`;
  253.     const strictTrackingProtectionFixFFTitle = `Choose this if you use ViolentMonkey, or GreaseMonkey in Firefox with "Enhanced Tracking Protection" set to "Strict". It is not required in case you use TamperMonkey.`;
  254.     document.body.insertAdjacentHTML("afterbegin", `
  255.   <div class="ujs-modal-wrapper" style="${modalWrapperStyle}">
  256.       <div class="ujs-modal-settings" style="${modalSettingsStyle}">
  257.           <fieldset>
  258.               <legend>Optional</legend>
  259.               <label title="Makes the button more visible"><input type="checkbox" ${s.addBorder ? "checked" : ""} name="addBorder">Add a white border to the download button<br/></label>
  260.               <label title="WARNING: It may broke the login page, but it works fine if you logged in and want to hide 'Messages'"><input type="checkbox" ${s.hideSignUpBottomBarAndMessages ? "checked" : ""} name="hideSignUpBottomBarAndMessages">Hide <strike><b>Sign Up Bar</b> and</strike> <b>Messages</b> (in the bottom). <span title="WARNING: It may broke the login page!">(beta)</span><br/></label>
  261.               <label><input type="checkbox" ${s.hideTrends ? "checked" : ""} name="hideTrends">Hide <b>Trends</b> (in the right column)*<br/></label>
  262.               <label hidden><input type="checkbox" ${s.doNotPlayVideosAutomatically ? "checked" : ""} name="doNotPlayVideosAutomatically">Do <i>Not</i> Play Videos Automatically</b><br/></label>
  263.               <label hidden><input type="checkbox" ${s.goFromMobileToMainSite ? "checked" : ""} name="goFromMobileToMainSite">Redirect from Mobile version (beta)<br/></label>
  264.           </fieldset>
  265.           <fieldset>
  266.               <legend>Recommended</legend>
  267.               <label><input type="checkbox" ${s.highlightVisitedLinks ? "checked" : ""} name="highlightVisitedLinks">Highlight Visited Links<br/></label>
  268.               <label title="In most cases absolute links are 3rd-party links"><input type="checkbox" ${s.highlightOnlySpecialVisitedLinks ? "checked" : ""} name="highlightOnlySpecialVisitedLinks">Highlight Only Absolute Visited Links<br/></label>
  269.  
  270.               <label title="Note: since the recent update the most NSFW spoilers are impossible to expand without an account"><input type="checkbox" ${s.expandSpoilers ? "checked" : ""} name="expandSpoilers">Expand Spoilers (if possible)*<br/></label>
  271.           </fieldset>
  272.           <fieldset>
  273.               <legend>Highly Recommended</legend>
  274.               <label><input type="checkbox" ${s.directLinks ? "checked" : ""} name="directLinks">Direct Links</label><br/>
  275.               <label><input type="checkbox" ${s.handleTitle ? "checked" : ""} name="handleTitle">Enchance Title*<br/></label>
  276.           </fieldset>
  277.           <fieldset ${isFirefox ? '': 'style="display: none"'}>
  278.               <legend>Firefox only</legend>
  279.               <label title='${downloadProgressFFTitle}'><input type="radio" ${s.downloadProgress ? "checked" : ""} name="firefoxDownloadProgress" value="downloadProgress">Download Progress<br/></label>
  280.               <label title='${strictTrackingProtectionFixFFTitle}'><input type="radio" ${s.strictTrackingProtectionFix ? "checked" : ""} name="firefoxDownloadProgress" value="strictTrackingProtectionFix">Strict Tracking Protection Fix<br/></label>
  281.           </fieldset>
  282.           <fieldset>
  283.               <legend>Main</legend>
  284.               <label><input type="checkbox" ${s.imagesHandler ? "checked" : ""} name="imagesHandler">Image Download Button<br/></label>
  285.               <label><input type="checkbox" ${s.videoHandler ? "checked" : ""} name="videoHandler">Video Download Button<br/></label>
  286.               <label hidden><input type="checkbox" ${s.addRequiredCSS ? "checked" : ""} name="addRequiredCSS">Add Required CSS*<br/></label><!-- * Only for the image download button in /photo/1 mode -->
  287.           </fieldset>
  288.           <fieldset>
  289.               <legend title="Outdated due to Twitter's updates, or impossible to reimplement">Outdated</legend>
  290.               <strike>
  291.  
  292.               <label><input type="checkbox" ${s.hideSignUpSection ? "checked" : ""} name="hideSignUpSection">Hide <b title='"New to Twitter?" (If yoy are not logged in)'>Sign Up</b> section (in the right column)*<br/></label>
  293.               <label title="Hides the modal login pop up. Useful if you have no account. \nWARNING: Currently it will close any popup, not only the login one.\nIt's recommended to use only if you do not have an account to hide the annoiyng login popup."><input type="checkbox" ${s.hideLoginPopup ? "checked" : ""} name="hideLoginPopup">Hide <strike>Login</strike> Popups. (beta)<br/></label>
  294.  
  295.               </strike>
  296.           </fieldset>
  297.           <hr>
  298.           <div style="display: flex; justify-content: space-around;">
  299.               <div>
  300.                 History:
  301.                 <button class="ujs-reload-export-button" style="padding: 5px" >Export</button>
  302.                 <button class="ujs-reload-import-button" style="padding: 5px" >Import</button>
  303.                 <button class="ujs-reload-merge-button"  style="padding: 5px" >Merge</button>
  304.               </div>
  305.               <div>
  306.                 <button class="ujs-reload-setting-button" style="padding: 5px" title="Reload the web page to apply changes">Reload page</button>
  307.                 <button class="ujs-close-setting-button" style="padding: 5px" title="Just close this popup.\nNote: You need to reload the web page to apply changes.">Close popup</button>
  308.               </div>
  309.           </div>
  310.           <hr>
  311.           <h4 style="margin: 0; padding-left: 8px; color: #444;">Notes:</h4>
  312.           <ul style="margin: 2px; padding-left: 16px; color: #444;">
  313.             <li><b>Reload the page</b> to apply changes.</li>
  314.             <li><b>*</b>-marked settings are language dependent. Currently, the follow languages are supported:<br/> "en", "ru", "es", "zh", "ja".</li>
  315.             <li hidden>The extension downloads only from twitter.com, not from <b>mobile</b>.twitter.com</li>
  316.           </ul>
  317.       </div>
  318.   </div>`);
  319.  
  320.     async function onDone(button) {
  321.         button.classList.remove("ujs-btn-error");
  322.         button.classList.add("ujs-btn-done");
  323.         await sleep(900);
  324.         button.classList.remove("ujs-btn-done");
  325.     }
  326.     async function onError(button, err) {
  327.         button.classList.remove("ujs-btn-done");
  328.         button.classList.add("ujs-btn-error");
  329.         button.title = err.message;
  330.         await sleep(1800);
  331.         button.classList.remove("ujs-btn-error");
  332.     }
  333.  
  334.     const exportButton = document.querySelector("body > .ujs-modal-wrapper .ujs-reload-export-button");
  335.     const importButton = document.querySelector("body > .ujs-modal-wrapper .ujs-reload-import-button");
  336.     const mergeButton  = document.querySelector("body > .ujs-modal-wrapper .ujs-reload-merge-button");
  337.  
  338.     exportButton.addEventListener("click", (event) => {
  339.         const button = event.currentTarget;
  340.         historyHelper.exportHistory(() => onDone(button));
  341.     });
  342.     sleep(50).then(() => {
  343.         const infoObj = getStoreInfo();
  344.         exportButton.title = Object.entries(infoObj).reduce((acc, [key, value]) => {
  345.             acc += `${key}: ${value}\n`;
  346.             return acc;
  347.         }, "");
  348.     });
  349.  
  350.     importButton.addEventListener("click", (event) => {
  351.         const button = event.currentTarget;
  352.         historyHelper.importHistory(
  353.             () => onDone(button),
  354.             (err) => onError(button, err)
  355.         );
  356.     });
  357.     mergeButton.addEventListener("click", (event) => {
  358.         const button = event.currentTarget;
  359.         historyHelper.mergeHistory(
  360.             () => onDone(button),
  361.             (err) => onError(button, err)
  362.         );
  363.     });
  364.  
  365.     document.querySelector("body > .ujs-modal-wrapper .ujs-reload-setting-button").addEventListener("click", () => {
  366.         location.reload();
  367.     });
  368.  
  369.     const checkboxList = document.querySelectorAll("body > .ujs-modal-wrapper input[type=checkbox], body > .ujs-modal-wrapper input[type=radio]");
  370.     checkboxList.forEach(checkbox => {
  371.         checkbox.addEventListener("change", saveSetting);
  372.     });
  373.  
  374.     document.querySelector("body > .ujs-modal-wrapper .ujs-close-setting-button").addEventListener("click", closeSetting);
  375.  
  376.     function saveSetting() {
  377.         const entries = [...document.querySelectorAll("body > .ujs-modal-wrapper input[type=checkbox]")]
  378.             .map(checkbox => [checkbox.name, checkbox.checked]);
  379.         const radioEntries = [...document.querySelectorAll("body > .ujs-modal-wrapper input[type=radio]")]
  380.             .map(checkbox => [checkbox.value, checkbox.checked])
  381.         const settings = Object.fromEntries([entries, radioEntries].flat());
  382.         // verbose && console.log("[ujs][save-settings]", settings);
  383.         localStorage.setItem(StorageNames.settings, JSON.stringify(settings));
  384.     }
  385.  
  386.     function closeSetting() {
  387.         document.body.classList.remove("ujs-no-scroll");
  388.         document.body.classList.remove("ujs-scrollbar-width-margin-right");
  389.         document.querySelector("html").classList.remove("ujs-scroll-initial");
  390.         document.querySelector("body > .ujs-modal-wrapper")?.remove();
  391.     }
  392.  
  393.  
  394. }
  395.  
  396. // ---------------------------------------------------------------------------------------------------------------------
  397. // ---------------------------------------------------------------------------------------------------------------------
  398. // --- Twitter Specific code --- //
  399.  
  400. const downloadedImages        = new LS(StorageNames.downloadedImageNames);
  401. const downloadedImageTweetIds = new LS(StorageNames.downloadedImageTweetIds);
  402. const downloadedVideoTweetIds = new LS(StorageNames.downloadedVideoTweetIds);
  403.  
  404. // --- That to use for the image history --- //
  405. /** @type {"TWEET_ID" | "IMAGE_NAME"} */
  406. const imagesHistoryBy = LS.getItem(StorageNames.settingsImageHistoryBy, "IMAGE_NAME"); // Hidden settings
  407. // With "TWEET_ID" downloading of 1 image of 4 will mark all 4 images as "already downloaded"
  408. // on the next time when the tweet will appear.
  409. // "IMAGE_NAME" will count each image of a tweet, but it will take more data to store.
  410.  
  411.  
  412. // ---------------------------------------------------------------------------------------------------------------------
  413. // --- Twitter.Features --- //
  414. function hoistFeatures() {
  415.     class Features {
  416.         static createButton({url, downloaded, isVideo, isThumb, isMultiMedia}) {
  417.             const btn = document.createElement("div");
  418.             btn.innerHTML = `
  419. <div class="ujs-btn-common ujs-btn-background"></div>
  420. <div class="ujs-btn-common ujs-hover"></div>
  421. <div class="ujs-btn-common ujs-shadow"></div>
  422. <div class="ujs-btn-common ujs-progress" style="--progress: 0%"></div>
  423. <div class="ujs-btn-common ujs-btn-error-text"></div>`.slice(1);
  424.             btn.classList.add("ujs-btn-download");
  425.             if (!downloaded) {
  426.                 btn.classList.add("ujs-not-downloaded");
  427.             } else {
  428.                 btn.classList.add("ujs-already-downloaded");
  429.             }
  430.             if (isVideo) {
  431.                 btn.classList.add("ujs-video");
  432.             }
  433.             if (url) {
  434.                 btn.dataset.url = url;
  435.             }
  436.             if (isThumb) {
  437.                 btn.dataset.thumb = "true";
  438.             }
  439.             if (isMultiMedia) {
  440.                 btn.dataset.isMultiMedia = "true";
  441.             }
  442.             return btn;
  443.         }
  444.  
  445.  
  446.         // Banner/Background
  447.         static async _downloadBanner(url, btn) {
  448.             const username = location.pathname.slice(1).split("/")[0];
  449.  
  450.             btn.classList.add("ujs-downloading");
  451.  
  452.             // https://pbs.twimg.com/profile_banners/34743251/1596331248/1500x500
  453.             const {
  454.                 id, seconds, res
  455.             } = url.match(/(?<=\/profile_banners\/)(?<id>\d+)\/(?<seconds>\d+)\/(?<res>\d+x\d+)/)?.groups || {};
  456.  
  457.             const {blob, lastModifiedDate, extension, name} = await fetchResource(url);
  458.  
  459.             Features.verifyBlob(blob, url, btn);
  460.  
  461.             const filename = `[twitter][bg] ${username}—${lastModifiedDate}—${id}—${seconds}.${extension}`;
  462.             downloadBlob(blob, filename, url);
  463.  
  464.             btn.classList.remove("ujs-downloading");
  465.             btn.classList.add("ujs-downloaded");
  466.         }
  467.  
  468.         static _ImageHistory = class {
  469.             static getImageNameFromUrl(url) {
  470.                 const _url = new URL(url);
  471.                 const {filename} = (_url.origin + _url.pathname).match(/(?<filename>[^\/]+$)/).groups;
  472.                 return filename.match(/^[^.]+/)[0]; // remove extension
  473.             }
  474.             static isDownloaded({id, url}) {
  475.                 if (imagesHistoryBy === "TWEET_ID") {
  476.                     return downloadedImageTweetIds.hasItem(id);
  477.                 } else if (imagesHistoryBy === "IMAGE_NAME") {
  478.                     const name = Features._ImageHistory.getImageNameFromUrl(url);
  479.                     return downloadedImages.hasItem(name);
  480.                 }
  481.             }
  482.             static async markDownloaded({id, url}) {
  483.                 if (imagesHistoryBy === "TWEET_ID") {
  484.                     await downloadedImageTweetIds.pushItem(id);
  485.                 } else if (imagesHistoryBy === "IMAGE_NAME") {
  486.                     const name = Features._ImageHistory.getImageNameFromUrl(url);
  487.                     await downloadedImages.pushItem(name);
  488.                 }
  489.             }
  490.         }
  491.         static async imagesHandler() {
  492.             verbose && console.log("[ujs][imagesHandler]");
  493.             const images = document.querySelectorAll(`img:not([data-handled]):not([src$=".svg"])`);
  494.             for (const img of images) {
  495.                 if (img.dataset.handled) {
  496.                     continue;
  497.                 }
  498.                 img.dataset.handled = "true";
  499.                 if (img.width === 0) {
  500.                     const imgOnload = new Promise(async (resolve) => {
  501.                         img.onload = resolve;
  502.                     });
  503.                     await Promise.any([imgOnload, sleep(500)]);
  504.                     await sleep(10); // to get updated img.width
  505.                 }
  506.                 if (img.width < 140) {
  507.                     continue;
  508.                 }
  509.                 verbose && console.log("[ujs][imagesHandler]", {img, img_width: img.width});
  510.  
  511.                 let anchor = img.closest("a");
  512.                 // if expanded_url (an image is _opened_ "https://twitter.com/UserName/status/1234567890123456789/photo/1" [fake-url])
  513.                 if (!anchor) {
  514.                     anchor = img.parentNode;
  515.                 }
  516.  
  517.                 const listitemEl = img.closest(`li[role="listitem"]`);
  518.                 const isThumb = Boolean(listitemEl); // isMediaThumbnail
  519.  
  520.                 if (isThumb && anchor.querySelector("svg")) {
  521.                     await Features.multiMediaThumbHandler(img);
  522.                     continue;
  523.                 }
  524.  
  525.                 const isMobileVideo = img.src.includes("ext_tw_video_thumb")  || img.closest(`a[aria-label="Embedded video"]`) || img.alt === "Animated Text GIF" || img.alt === "Embedded video"
  526.                                    || img.src.includes("tweet_video_thumb") /* GIF thumb */;
  527.                 if (isMobileVideo) {
  528.                     await Features.mobileVideoHandler(img, isThumb);
  529.                     continue;
  530.                 }
  531.  
  532.                 const btn = Features.createButton({url: img.src, isThumb});
  533.                 btn.addEventListener("click", Features._imageClickHandler);
  534.                 anchor.append(btn);
  535.  
  536.                 const downloaded = Features._ImageHistory.isDownloaded({
  537.                     id: Tweet.of(btn).id,
  538.                     url: btn.dataset.url
  539.                 });
  540.                 if (downloaded) {
  541.                     btn.classList.add("ujs-already-downloaded");
  542.                 }
  543.             }
  544.         }
  545.         static async _imageClickHandler(event) {
  546.             event.preventDefault();
  547.             event.stopImmediatePropagation();
  548.  
  549.             const btn = event.currentTarget;
  550.             let url = btn.dataset.url;
  551.  
  552.             const isBanner = url.includes("/profile_banners/");
  553.             if (isBanner) {
  554.                 return Features._downloadBanner(url, btn);
  555.             }
  556.  
  557.             const {id, author} = Tweet.of(btn);
  558.             verbose && console.log("[ujs][_imageClickHandler]", {id, author});
  559.  
  560.             await Features._downloadPhotoMediaEntry(id, author, url, btn);
  561.         }
  562.         static async _downloadPhotoMediaEntry(id, author, url, btn) {
  563.             const btnErrorTextElem = btn.querySelector(".ujs-btn-error-text");
  564.             const btnProgress = btn.querySelector(".ujs-progress");
  565.             if (btn.textContent !== "") {
  566.                 btnErrorTextElem.textContent = "";
  567.             }
  568.             btn.classList.remove("ujs-error");
  569.             btn.classList.add("ujs-downloading");
  570.  
  571.             let onProgress = null;
  572.             if (settings.downloadProgress) {
  573.                 onProgress = ({loaded, total}) => btnProgress.style.cssText = "--progress: " + loaded / total * 90 + "%";
  574.             }
  575.  
  576.             const originals = ["orig", "4096x4096"];
  577.             const samples = ["large", "medium", "900x900", "small", "360x360", /*"240x240", "120x120", "tiny"*/];
  578.             let isSample = false;
  579.             const previewSize = new URL(url).searchParams.get("name");
  580.             if (!samples.includes(previewSize)) {
  581.                 samples.push(previewSize);
  582.             }
  583.  
  584.             function handleImgUrl(url) {
  585.                 const urlObj = new URL(url);
  586.                 if (originals.length) {
  587.                     urlObj.searchParams.set("name", originals.shift());
  588.                 } else if (samples.length) {
  589.                     isSample = true;
  590.                     urlObj.searchParams.set("name", samples.shift());
  591.                 } else {
  592.                     throw new Error("All fallback URLs are failed to download.");
  593.                 }
  594.                 if (urlObj.searchParams.get("format") === "webp") {
  595.                     urlObj.searchParams.set("format", "jpg");
  596.                 }
  597.                 url = urlObj.toString();
  598.                 verbose && console.log("[ujs][handleImgUrl][url]", url);
  599.                 return url;
  600.             }
  601.  
  602.             async function safeFetchResource(url) {
  603.                 while (true) {
  604.                     url = handleImgUrl(url);
  605.                     try {
  606.                         const result = await fetchResource(url, onProgress);
  607.                         if (result.status === 404) {
  608.                             const urlObj = new URL(url);
  609.                             const params = urlObj.searchParams;
  610.                             if (params.get("name") === "orig" && params.get("format") === "jpg") {
  611.                                 params.set("format", "png");
  612.                                 url = urlObj.toString();
  613.                                 return await fetchResource(url, onProgress);
  614.                             }
  615.                         }
  616.                         return result;
  617.                     } catch (err) {
  618.                         if (!originals.length) {
  619.                             btn.classList.add("ujs-error");
  620.                             btnErrorTextElem.textContent = "";
  621.                             // Add ⚠
  622.                             btnErrorTextElem.style = `background-image: url("https://abs-0.twimg.com/emoji/v2/svg/26a0.svg"); background-size: 1.5em; background-position: center; background-repeat: no-repeat;`;
  623.                             btn.title = "[warning] Original images are not available.";
  624.                         }
  625.  
  626.                         const ffAutoAllocateChunkSizeBug = err.message.includes("autoAllocateChunkSize"); // https://bugzilla.mozilla.org/show_bug.cgi?id=1757836
  627.                         if (!samples.length || ffAutoAllocateChunkSizeBug) {
  628.                             btn.classList.add("ujs-error");
  629.                             btnErrorTextElem.textContent = "";
  630.                             // Add ❌
  631.                             btnErrorTextElem.style = `background-image: url("https://abs-0.twimg.com/emoji/v2/svg/274c.svg"); background-size: 1.5em; background-position: center; background-repeat: no-repeat;`;
  632.  
  633.                             const ffHint = isFirefox && !settings.strictTrackingProtectionFix && ffAutoAllocateChunkSizeBug ? "\nTry to enable 'Strict Tracking Protection Fix' in the userscript settings." : "";
  634.                             btn.title = "Failed to download the image." + ffHint;
  635.                             throw new Error("[error] Fallback URLs are failed.");
  636.                         }
  637.                     }
  638.                 }
  639.             }
  640.  
  641.             const {blob, lastModifiedDate, extension, name} = await safeFetchResource(url);
  642.  
  643.             Features.verifyBlob(blob, url, btn);
  644.  
  645.             btnProgress.style.cssText = "--progress: 100%";
  646.  
  647.             const sampleText = !isSample ? "" : "[sample]";
  648.             const filename = `[twitter]${sampleText} ${author}—${lastModifiedDate}—${id}—${name}.${extension}`;
  649.             downloadBlob(blob, filename, url);
  650.  
  651.             const downloaded = btn.classList.contains("ujs-already-downloaded") || btn.classList.contains("ujs-downloaded");
  652.             if (!downloaded && !isSample) {
  653.                 await Features._ImageHistory.markDownloaded({id, url});
  654.             }
  655.             btn.classList.remove("ujs-downloading");
  656.             btn.classList.add("ujs-downloaded");
  657.  
  658.             if (btn.dataset.isMultiMedia && !isSample) { // dirty fix
  659.                 const isDownloaded = Features._ImageHistory.isDownloaded({id, url});
  660.                 if (!isDownloaded) {
  661.                     await Features._ImageHistory.markDownloaded({id, url});
  662.                 }
  663.             }
  664.  
  665.             await sleep(40);
  666.             btnProgress.style.cssText = "--progress: 0%";
  667.         }
  668.  
  669.  
  670.         // Quick Dirty Fix // todo refactor
  671.         static async mobileVideoHandler(imgElem, isThumb) { // + thumbVideoHandler
  672.             verbose && console.log("[ujs][mobileVideoHandler][vid]", imgElem);
  673.  
  674.             const btn = Features.createButton({isVideo: true, url: imgElem.src, isThumb});
  675.             btn.addEventListener("click", Features._videoClickHandler);
  676.  
  677.             let anchor = imgElem.closest("a");
  678.             if (!anchor) {
  679.                 anchor = imgElem.parentNode;
  680.             }
  681.             anchor.append(btn);
  682.  
  683.             const tweet = Tweet.of(btn);
  684.             const id = tweet.id;
  685.             const tweetElem = tweet.elem || btn.closest(`[data-testid="tweet"]`);
  686.             let vidNumber = 0;
  687.  
  688.             if (tweetElem) {
  689.                 const map = Features.tweetVidWeakMapMobile;
  690.                 if (map.has(tweetElem)) {
  691.                     vidNumber = map.get(tweetElem) + 1;
  692.                     map.set(tweetElem, vidNumber);
  693.                 } else {
  694.                     map.set(tweetElem, vidNumber); // can throw an error for null
  695.                 }
  696.             } // else thumbnail
  697.  
  698.             const historyId = vidNumber ? id + "-" + vidNumber : id;
  699.  
  700.             const downloaded = downloadedVideoTweetIds.hasItem(historyId);
  701.             if (downloaded) {
  702.                 btn.classList.add("ujs-already-downloaded");
  703.             }
  704.         }
  705.  
  706.  
  707.         static async multiMediaThumbHandler(imgElem) {
  708.             verbose && console.log("[ujs][multiMediaThumbHandler]", imgElem);
  709.             let isVideo = false;
  710.             if (imgElem.src.includes("/ext_tw_video_thumb/")) {
  711.                 isVideo = true;
  712.             }
  713.  
  714.             const btn = Features.createButton({url: imgElem.src, isVideo, isThumb: true, isMultiMedia: true});
  715.             btn.addEventListener("click", Features._multiMediaThumbClickHandler);
  716.             let anchor = imgElem.closest("a");
  717.             if (!anchor) {
  718.                 anchor = imgElem.parentNode;
  719.             }
  720.             anchor.append(btn);
  721.  
  722.             let downloaded;
  723.             const tweetId = Tweet.of(btn).id;
  724.             if (isVideo) {
  725.                 downloaded = downloadedVideoTweetIds.hasItem(tweetId);
  726.             } else {
  727.                 downloaded = Features._ImageHistory.isDownloaded({
  728.                     id: tweetId,
  729.                     url: btn.dataset.url
  730.                 });
  731.             }
  732.             if (downloaded) {
  733.                 btn.classList.add("ujs-already-downloaded");
  734.             }
  735.         }
  736.         static async _multiMediaThumbClickHandler(event) {
  737.             event.preventDefault();
  738.             event.stopImmediatePropagation();
  739.             const btn = event.currentTarget;
  740.             const btnErrorTextElem = btn.querySelector(".ujs-btn-error-text");
  741.             if (btn.textContent !== "") {
  742.                 btnErrorTextElem.textContent = "";
  743.             }
  744.             const {id} = Tweet.of(btn);
  745.             /** @type {TweetMediaEntry[]} */
  746.             let medias;
  747.             try {
  748.                 medias = await API.getTweetMedias(id);
  749.                 medias = medias.filter(mediaEntry => mediaEntry.tweet_id === id);
  750.             } catch (err) {
  751.                 console.error(err);
  752.                 btn.classList.add("ujs-error");
  753.                 btnErrorTextElem.textContent = "Error";
  754.                 btn.title = "API.getTweetMedias Error";
  755.                 throw new Error("API.getTweetMedias Error");
  756.             }
  757.  
  758.             for (const mediaEntry of medias) {
  759.                 if (mediaEntry.type === "video") {
  760.                     await Features._downloadVideoMediaEntry(mediaEntry, btn, id);
  761.                 } else { // "photo"
  762.                     const {screen_name: author,download_url: url, tweet_id: id} = mediaEntry;
  763.                     await Features._downloadPhotoMediaEntry(id, author, url, btn);
  764.                 }
  765.                 await sleep(50);
  766.             }
  767.         }
  768.  
  769.         static tweetVidWeakMapMobile = new WeakMap();
  770.         static tweetVidWeakMap = new WeakMap();
  771.         static async videoHandler() {
  772.             const videos = document.querySelectorAll("video:not([data-handled])");
  773.             for (const vid of videos) {
  774.                 if (vid.dataset.handled) {
  775.                     continue;
  776.                 }
  777.                 vid.dataset.handled = "true";
  778.                 verbose && console.log("[ujs][videoHandler][vid]", vid);
  779.  
  780.                 const poster = vid.getAttribute("poster");
  781.  
  782.                 const btn = Features.createButton({isVideo: true, url: poster});
  783.                 btn.addEventListener("click", Features._videoClickHandler);
  784.  
  785.                 let elem = vid.closest(`[data-testid="videoComponent"]`).parentNode;
  786.                 if (elem) {
  787.                     elem.append(btn);
  788.                 } else {
  789.                     elem = vid.parentNode.parentNode.parentNode;
  790.                     elem.after(btn);
  791.                 }
  792.  
  793.  
  794.                 const tweet = Tweet.of(btn);
  795.                 const id = tweet.id;
  796.                 const tweetElem = tweet.elem;
  797.                 let vidNumber = 0;
  798.  
  799.                 if (tweetElem) {
  800.                     const map = Features.tweetVidWeakMap;
  801.                     if (map.has(tweetElem)) {
  802.                         vidNumber = map.get(tweetElem) + 1;
  803.                         map.set(tweetElem, vidNumber);
  804.                     } else {
  805.                         map.set(tweetElem, vidNumber); // can throw an error for null
  806.                     }
  807.                 } else { // expanded_url
  808.                     await sleep(10);
  809.                     const match = location.pathname.match(/(?<=\/video\/)\d/);
  810.                     if (!match) {
  811.                         verbose && console.log("[ujs][videoHandler] missed match for match");
  812.                     }
  813.                     vidNumber = Number(match[0]) - 1;
  814.  
  815.                     console.warn("[ujs][videoHandler] vidNumber", vidNumber);
  816.                     // todo: add support for expanded_url video downloading
  817.                 }
  818.  
  819.                 const historyId = vidNumber ? id + "-" + vidNumber : id;
  820.  
  821.                 const downloaded = downloadedVideoTweetIds.hasItem(historyId);
  822.                 if (downloaded) {
  823.                     btn.classList.add("ujs-already-downloaded");
  824.                 }
  825.             }
  826.         }
  827.         static async _videoClickHandler(event) { // todo: parse the URL from HTML (For "Embedded video" (?))
  828.             event.preventDefault();
  829.             event.stopImmediatePropagation();
  830.  
  831.             const btn = event.currentTarget;
  832.             const btnErrorTextElem = btn.querySelector(".ujs-btn-error-text");
  833.             const {id} = Tweet.of(btn);
  834.  
  835.             if (btn.textContent !== "") {
  836.                 btnErrorTextElem.textContent = "";
  837.             }
  838.             btn.classList.remove("ujs-error");
  839.             btn.classList.add("ujs-downloading");
  840.  
  841.             let mediaEntry;
  842.             try {
  843.                 const medias = await API.getTweetMedias(id);
  844.                 const posterUrl = btn.dataset.url; // [note] if `posterUrl` has `searchParams`, it will have no extension at the end of `pathname`.
  845.                 const posterUrlClear = removeSearchParams(posterUrl);
  846.                 mediaEntry = medias.find(media => media.preview_url.startsWith(posterUrlClear));
  847.                 verbose && console.log("[ujs][_videoClickHandler] mediaEntry", mediaEntry);
  848.             } catch (err) {
  849.                 console.error(err);
  850.                 btn.classList.add("ujs-error");
  851.                 btnErrorTextElem.textContent = "Error";
  852.                 btn.title = "API.getVideoInfo Error";
  853.                 throw new Error("API.getVideoInfo Error");
  854.             }
  855.  
  856.             await Features._downloadVideoMediaEntry(mediaEntry, btn, id);
  857.         }
  858.  
  859.         static async _downloadVideoMediaEntry(mediaEntry, btn, id /* of original tweet */) {
  860.             const {
  861.                 screen_name:  author,
  862.                 tweet_id:     videoTweetId,
  863.                 download_url: url,
  864.                 type_index:   vidNumber,
  865.             } = mediaEntry;
  866.             if (!url) {
  867.                 throw new Error("No video URL found");
  868.             }
  869.  
  870.             const btnProgress = btn.querySelector(".ujs-progress");
  871.  
  872.             let onProgress = null;
  873.             if (settings.downloadProgress) {
  874.                 onProgress = ({loaded, total}) => btnProgress.style.cssText = "--progress: " + loaded / total * 90 + "%";
  875.             }
  876.  
  877.             const {blob, lastModifiedDate, extension, name} = await fetchResource(url, onProgress);
  878.  
  879.             btnProgress.style.cssText = "--progress: 100%";
  880.  
  881.             Features.verifyBlob(blob, url, btn);
  882.  
  883.             const filename = `[twitter] ${author}—${lastModifiedDate}—${videoTweetId}—${name}.${extension}`;
  884.             downloadBlob(blob, filename, url);
  885.  
  886.             const downloaded = btn.classList.contains("ujs-already-downloaded");
  887.             const historyId = vidNumber /* not 0 */ ? videoTweetId + "-" + vidNumber : videoTweetId;
  888.             if (!downloaded) {
  889.                 await downloadedVideoTweetIds.pushItem(historyId);
  890.                 if (videoTweetId !== id) { // if QRT
  891.                     const historyId = vidNumber ? id + "-" + vidNumber : id;
  892.                     await downloadedVideoTweetIds.pushItem(historyId);
  893.                 }
  894.             }
  895.             btn.classList.remove("ujs-downloading");
  896.             btn.classList.add("ujs-downloaded");
  897.  
  898.             if (btn.dataset.isMultiMedia) { // dirty fix
  899.                 const isDownloaded = downloadedVideoTweetIds.hasItem(historyId);
  900.                 if (!isDownloaded) {
  901.                     await downloadedVideoTweetIds.pushItem(historyId);
  902.                     if (videoTweetId !== id) { // if QRT
  903.                         const historyId = vidNumber ? id + "-" + vidNumber : id;
  904.                         await downloadedVideoTweetIds.pushItem(historyId);
  905.                     }
  906.                 }
  907.             }
  908.  
  909.             await sleep(40);
  910.             btnProgress.style.cssText = "--progress: 0%";
  911.         }
  912.  
  913.         static verifyBlob(blob, url, btn) {
  914.             if (!blob.size) {
  915.                 btn.classList.add("ujs-error");
  916.                 btn.querySelector(".ujs-btn-error-text").textContent = "Error";
  917.                 btn.title = "Download Error";
  918.                 throw new Error("Zero size blob: " + url);
  919.             }
  920.         }
  921.  
  922.         static addRequiredCSS() {
  923.             const code = getUserScriptCSS();
  924.             addCSS(code);
  925.         }
  926.  
  927.         // it depends on `directLinks()` use only it after `directLinks()`
  928.         static handleTitle(title) {
  929.  
  930.             if (!I18N.QUOTES) { // Unsupported lang, no QUOTES, ON_TWITTER, TWITTER constants
  931.                 return;
  932.             }
  933.  
  934.             // if not an opened tweet
  935.             if (!location.href.match(/twitter\.com\/[^\/]+\/status\/\d+/)) {
  936.                 return;
  937.             }
  938.  
  939.             let titleText = title || document.title;
  940.             if (titleText === Features.lastHandledTitle) {
  941.                 return;
  942.             }
  943.             Features.originalTitle = titleText;
  944.  
  945.             const [OPEN_QUOTE, CLOSE_QUOTE] = I18N.QUOTES;
  946.             const urlsToReplace = [
  947.                 ...titleText.matchAll(new RegExp(`https:\\/\\/t\\.co\\/[^ ${CLOSE_QUOTE}]+`, "g"))
  948.             ].map(el => el[0]);
  949.             // the last one may be the URL to the tweet // or to an embedded shared URL
  950.  
  951.             const map = new Map();
  952.             const anchors = document.querySelectorAll(`a[data-redirect^="https://t.co/"]`);
  953.             for (const anchor of anchors) {
  954.                 if (urlsToReplace.includes(anchor.dataset.redirect)) {
  955.                     map.set(anchor.dataset.redirect, anchor.href);
  956.                 }
  957.             }
  958.  
  959.             const lastUrl = urlsToReplace.slice(-1)[0];
  960.             let lastUrlIsAttachment = false;
  961.             let attachmentDescription = "";
  962.             if (!map.has(lastUrl)) {
  963.                 const a = document.querySelector(`a[href="${lastUrl}?amp=1"]`);
  964.                 if (a) {
  965.                     lastUrlIsAttachment = true;
  966.                     attachmentDescription = document.querySelectorAll(`a[href="${lastUrl}?amp=1"]`)[1].innerText;
  967.                     attachmentDescription = attachmentDescription.replaceAll("\n", " — ");
  968.                 }
  969.             }
  970.  
  971.             for (const [key, value] of map.entries()) {
  972.                 titleText = titleText.replaceAll(key, value + ` (${key})`);
  973.             }
  974.  
  975.             titleText = titleText.replace(new RegExp(`${I18N.ON_TWITTER}(?= ${OPEN_QUOTE})`), ":");
  976.             titleText = titleText.replace(new RegExp(`(?<=${CLOSE_QUOTE}) \\\/ ${I18N.TWITTER}$`), "");
  977.             if (!lastUrlIsAttachment) {
  978.                 const regExp = new RegExp(`(?<short> https:\\/\\/t\\.co\\/.{6,14})${CLOSE_QUOTE}$`);
  979.                 titleText = titleText.replace(regExp, (match, p1, p2, offset, string) => `${CLOSE_QUOTE} —${p1}`);
  980.             } else {
  981.                 titleText = titleText.replace(lastUrl, `${lastUrl} (${attachmentDescription})`);
  982.             }
  983.             document.title = titleText; // Note: some characters will be removed automatically (`\n`, extra spaces)
  984.             Features.lastHandledTitle = document.title;
  985.         }
  986.         static lastHandledTitle = "";
  987.         static originalTitle = "";
  988.  
  989.         static profileUrlCache = new Map();
  990.         static async directLinks() {
  991.             verbose && console.log("[ujs][directLinks]");
  992.             const hasHttp = url => Boolean(url.match(/^https?:\/\//));
  993.             const anchors = xpathAll(`.//a[@dir="ltr" and child::span and not(@data-handled)]`);
  994.             for (const anchor of anchors) {
  995.                 const redirectUrl = new URL(anchor.href);
  996.                 const shortUrl = redirectUrl.origin + redirectUrl.pathname; // remove "?amp=1"
  997.  
  998.                 const hrefAttr = anchor.getAttribute("href");
  999.                 if (hrefAttr.startsWith("/")) {
  1000.                     anchor.dataset.handled = "true";
  1001.                     return;
  1002.                 }
  1003.  
  1004.                 verbose && console.log("[ujs][directLinks]", {hrefAttr, redirectUrl_href: redirectUrl.href, shortUrl});
  1005.  
  1006.                 anchor.dataset.redirect = shortUrl;
  1007.                 anchor.dataset.handled = "true";
  1008.                 anchor.rel = "nofollow noopener noreferrer";
  1009.  
  1010.                 if (Features.profileUrlCache.has(shortUrl)) {
  1011.                     anchor.href = Features.profileUrlCache.get(shortUrl);
  1012.                     continue;
  1013.                 }
  1014.  
  1015.                 const nodes = xpathAll(`./span[text() != "…"]|./text()`, anchor);
  1016.                 let url = nodes.map(node => node.textContent).join("");
  1017.  
  1018.                 const doubleProtocolPrefix = url.match(/(?<dup>^https?:\/\/)(?=https?:)/)?.groups.dup;
  1019.                 if (doubleProtocolPrefix) {
  1020.                     url = url.slice(doubleProtocolPrefix.length);
  1021.                     const span = anchor.querySelector(`[aria-hidden="true"]`);
  1022.                     if (hasHttp(span.textContent)) { // Fix Twitter's bug related to text copying
  1023.                         span.style = "display: none;";
  1024.                     }
  1025.                 }
  1026.  
  1027.                 anchor.href = url;
  1028.  
  1029.                 if (anchor.dataset?.testid === "UserUrl") {
  1030.                     const href = anchor.getAttribute("href");
  1031.                     const profileUrl = hasHttp(href) ? href : "https://" + href;
  1032.                     anchor.href = profileUrl;
  1033.                     verbose && console.log("[ujs][directLinks][profileUrl]", profileUrl);
  1034.  
  1035.                     // Restore if URL's text content is too long
  1036.                     if (anchor.textContent.endsWith("…")) {
  1037.                         anchor.href = shortUrl;
  1038.  
  1039.                         try {
  1040.                             const author = location.pathname.slice(1).match(/[^\/]+/)[0];
  1041.                             const expanded_url = await API.getUserInfo(author); // todo: make lazy
  1042.                             anchor.href = expanded_url;
  1043.                             Features.profileUrlCache.set(shortUrl, expanded_url);
  1044.                         } catch (err) {
  1045.                             verbose && console.error("[ujs]", err);
  1046.                         }
  1047.                     }
  1048.                 }
  1049.             }
  1050.             if (anchors.length) {
  1051.                 Features.handleTitle(Features.originalTitle);
  1052.             }
  1053.         }
  1054.  
  1055.         // Do NOT throttle it
  1056.         static expandSpoilers() {
  1057.             const main = document.querySelector("main[role=main]");
  1058.             if (!main) {
  1059.                 return;
  1060.             }
  1061.  
  1062.             if (!I18N.YES_VIEW_PROFILE) { // Unsupported lang, no YES_VIEW_PROFILE, SHOW_NUDITY, VIEW constants
  1063.                 return;
  1064.             }
  1065.  
  1066.             const a = main.querySelectorAll("[data-testid=primaryColumn] [role=button]");
  1067.             if (a) {
  1068.                 const elems = [...a];
  1069.                 const button = elems.find(el => el.textContent === I18N.YES_VIEW_PROFILE);
  1070.                 if (button) {
  1071.                     button.click();
  1072.                 }
  1073.  
  1074.                 // "Content warning: Nudity"
  1075.                 // "The Tweet author flagged this Tweet as showing sensitive content."
  1076.                 // "Show"
  1077.                 const buttonShow = elems.find(el => el.textContent === I18N.SHOW_NUDITY);
  1078.                 if (buttonShow) {
  1079.                     // const verifying = a.previousSibling.textContent.includes("Nudity"); // todo?
  1080.                     // if (verifying) {
  1081.                     buttonShow.click();
  1082.                     // }
  1083.                 }
  1084.             }
  1085.  
  1086.             // todo: expand spoiler commentary in photo view mode (.../photo/1)
  1087.             const b = main.querySelectorAll("article [role=presentation] div[role=button]");
  1088.             if (b) {
  1089.                 const elems = [...b];
  1090.                 const buttons = elems.filter(el => el.textContent === I18N.VIEW);
  1091.                 if (buttons.length) {
  1092.                     buttons.forEach(el => el.click());
  1093.                 }
  1094.             }
  1095.         }
  1096.  
  1097.         static hideSignUpSection() { // "New to Twitter?"
  1098.             if (!I18N.SIGNUP) {// Unsupported lang, no SIGNUP constant
  1099.                 return;
  1100.             }
  1101.             const elem = document.querySelector(`section[aria-label="${I18N.SIGNUP}"][role=region]`);
  1102.             if (elem) {
  1103.                 elem.parentNode.classList.add("ujs-hidden");
  1104.             }
  1105.         }
  1106.  
  1107.         // Call it once.
  1108.         // "Don’t miss what’s happening" if you are not logged in.
  1109.         // It looks that `#layers` is used only for this bar.
  1110.         static hideSignUpBottomBarAndMessages(doNotPlayVideosAutomatically) {
  1111.             if (doNotPlayVideosAutomatically) {
  1112.                 addCSS(`
  1113.                     #layers > div:nth-child(1) {
  1114.                         display: none;
  1115.                     }
  1116.                 `);
  1117.             } else {
  1118.                 addCSS(`
  1119.                     #layers > div:nth-child(1) {
  1120.                         height: 1px;
  1121.                         opacity: 0;
  1122.                     }
  1123.                 `);
  1124.             }
  1125.         }
  1126.  
  1127.         // "Trends for you"
  1128.         static hideTrends() {
  1129.             if (!I18N.TRENDS) { // Unsupported lang, no TRENDS constant
  1130.                 return;
  1131.             }
  1132.             addCSS(`
  1133.                 [aria-label="${I18N.TRENDS}"]
  1134.                 {
  1135.                     display: none;
  1136.                 }
  1137.             `);
  1138.         }
  1139.  
  1140.         static highlightVisitedLinks() {
  1141.             if (settings.highlightOnlySpecialVisitedLinks) {
  1142.                 addCSS(`
  1143.                     a[href^="http"]:visited {
  1144.                         color: darkorange !important;
  1145.                     }
  1146.                 `);
  1147.                 return;
  1148.             }
  1149.             addCSS(`
  1150.                 a:visited {
  1151.                     color: darkorange !important;
  1152.                 }
  1153.             `);
  1154.         }
  1155.  
  1156.         // todo split to two methods
  1157.         // todo fix it, currently it works questionably
  1158.         // not tested with non eng languages
  1159.         static footerHandled = false;
  1160.         static hideAndMoveFooter() { // "Terms of Service   Privacy Policy   Cookie Policy"
  1161.             let footer = document.querySelector(`main[role=main] nav[aria-label=${I18N.FOOTER}][role=navigation]`);
  1162.             const nav  = document.querySelector("nav[aria-label=Primary][role=navigation]"); // I18N."Primary" [?]
  1163.  
  1164.             if (footer) {
  1165.                 footer = footer.parentNode;
  1166.                 const separatorLine = footer.previousSibling;
  1167.  
  1168.                 if (Features.footerHandled) {
  1169.                     footer.remove();
  1170.                     separatorLine.remove();
  1171.                     return;
  1172.                 }
  1173.  
  1174.                 nav.append(separatorLine);
  1175.                 nav.append(footer);
  1176.                 footer.classList.add("ujs-show-on-hover");
  1177.                 separatorLine.classList.add("ujs-show-on-hover");
  1178.  
  1179.                 Features.footerHandled = true;
  1180.             }
  1181.         }
  1182.  
  1183.         static hideLoginPopup() { // When you are not logged in
  1184.             const targetNode = document.querySelector("html");
  1185.             const observerOptions = {
  1186.                 attributes: true,
  1187.             };
  1188.             const observer = new MutationObserver(callback);
  1189.             observer.observe(targetNode, observerOptions);
  1190.  
  1191.             function callback(mutationList, _observer) {
  1192.                 const html = document.querySelector("html");
  1193.                 verbose && console.log("[ujs][hideLoginPopup][mutationList]", mutationList);
  1194.                 // overflow-y: scroll; overscroll-behavior-y: none; font-size: 15px;                     // default
  1195.                 // overflow: hidden; overscroll-behavior-y: none; font-size: 15px; margin-right: 15px;   // popup
  1196.                 if (html.style["overflow"] === "hidden") {
  1197.                     html.style["overflow"] = "";
  1198.                     html.style["overflow-y"] = "scroll";
  1199.                     html.style["margin-right"] = "";
  1200.                 }
  1201.                 const popup = document.querySelector(`#layers div[data-testid="sheetDialog"]`);
  1202.                 if (popup) {
  1203.                     popup.closest(`div[role="dialog"]`).remove();
  1204.                     verbose && (document.title = "⚒" + document.title);
  1205.                     // observer.disconnect();
  1206.                 }
  1207.             }
  1208.         }
  1209.  
  1210.         static goFromMobileToMainSite() { // uncompleted
  1211.             if (location.href.startsWith("https://mobile.twitter.com/")) {
  1212.                 location.href = location.href.replace("https://mobile.twitter.com/", "https://twitter.com/");
  1213.             }
  1214.             // TODO: add #redirected, remove by timer // to prevent a potential infinity loop
  1215.         }
  1216.     }
  1217.  
  1218.     return Features;
  1219. }
  1220.  
  1221. function getStoreInfo() {
  1222.     const resultObj = {
  1223.         total: 0
  1224.     };
  1225.     for (const [name, lsKey] of Object.entries(StorageNames)) {
  1226.         const valueStr = localStorage.getItem(lsKey);
  1227.         if (valueStr) {
  1228.             try {
  1229.                 const value = JSON.parse(valueStr);
  1230.                 if (Array.isArray(value)) {
  1231.                     const size = new Set(value).size;
  1232.                     resultObj[name] = size;
  1233.                     resultObj.total += size;
  1234.                 }
  1235.             } catch (err) {
  1236.                 // ...
  1237.             }
  1238.         }
  1239.     }
  1240.     return resultObj;
  1241. }
  1242.  
  1243. // --- Twitter.RequiredCSS --- //
  1244. function getUserScriptCSS() {
  1245.     const labelText = I18N.IMAGE || "Image";
  1246.  
  1247.     // By default, the scroll is showed all time, since <html style="overflow-y: scroll;>,
  1248.     // so it works — no need to use `getScrollbarWidth` function from SO (13382516).
  1249.     const scrollbarWidth = window.innerWidth - document.body.offsetWidth;
  1250.  
  1251.     const css = `
  1252. .ujs-modal-wrapper .ujs-modal-settings {
  1253.   color: black;
  1254. }
  1255. .ujs-hidden {
  1256.     display: none;
  1257. }
  1258. .ujs-no-scroll {
  1259.     overflow-y: hidden;
  1260. }
  1261. .ujs-scroll-initial {
  1262.     overflow-y: initial!important;
  1263. }
  1264. .ujs-scrollbar-width-margin-right {
  1265.     margin-right: ${scrollbarWidth}px;
  1266. }
  1267.  
  1268. .ujs-show-on-hover:hover {
  1269.     opacity: 1;
  1270.     transition: opacity 1s ease-out 0.1s;
  1271. }
  1272. .ujs-show-on-hover {
  1273.     opacity: 0;
  1274.     transition: opacity 0.5s ease-out;
  1275. }
  1276.  
  1277. :root {
  1278.     --ujs-shadow-1: linear-gradient(to top, rgba(0,0,0,0.15), rgba(0,0,0,0.05));
  1279.     --ujs-shadow-2: linear-gradient(to top, rgba(0,0,0,0.25), rgba(0,0,0,0.05));
  1280.     --ujs-shadow-3: linear-gradient(to top, rgba(0,0,0,0.45), rgba(0,0,0,0.15));
  1281.     --ujs-shadow-4: linear-gradient(to top, rgba(0,0,0,0.55), rgba(0,0,0,0.25));
  1282.     --ujs-red:   #e0245e;
  1283.     --ujs-blue:  #1da1f2;
  1284.     --ujs-green: #4caf50;
  1285.     --ujs-gray:  #c2cbd0;
  1286.     --ujs-error: white;
  1287. }
  1288.  
  1289. .ujs-progress {
  1290.   background-image: linear-gradient(to right, var(--ujs-green) var(--progress), transparent 0%);
  1291. }
  1292.  
  1293. .ujs-shadow {
  1294.   background-image: var(--ujs-shadow-1);
  1295. }
  1296. .ujs-btn-download:hover .ujs-hover {
  1297.   background-image: var(--ujs-shadow-2);
  1298. }
  1299. .ujs-btn-download.ujs-downloading .ujs-shadow {
  1300.   background-image: var(--ujs-shadow-3);
  1301. }
  1302. .ujs-btn-download:active .ujs-shadow {
  1303.   background-image: var(--ujs-shadow-4);
  1304. }
  1305.  
  1306. li[role="listitem"]:hover .ujs-btn-download {
  1307.     opacity: 1;
  1308. }
  1309. article[role=article]:hover .ujs-btn-download {
  1310.     opacity: 1;
  1311. }
  1312. div[aria-label="${labelText}"]:hover .ujs-btn-download {
  1313.     opacity: 1;
  1314. }
  1315. .ujs-btn-download.ujs-downloaded {
  1316.     opacity: 1;
  1317. }
  1318. .ujs-btn-download.ujs-downloading {
  1319.     opacity: 1;
  1320. }
  1321. [data-testid="videoComponent"]:hover + .ujs-btn-download {
  1322.     opacity: 1;
  1323. }
  1324. [data-testid="videoComponent"] + .ujs-btn-download:hover {
  1325.     opacity: 1;
  1326. }
  1327.  
  1328. .ujs-btn-download {
  1329.   cursor: pointer;
  1330.   top: 0.5em;
  1331.   left: 0.5em;
  1332.   position: absolute;
  1333.   opacity: 0;
  1334. }
  1335. .ujs-btn-common {
  1336.   width: 33px;
  1337.   height: 33px;
  1338.   border-radius: 0.3em;
  1339.   top: 0;
  1340.   position: absolute;
  1341.   border: 1px solid transparent;
  1342.   border-color: var(--ujs-gray);
  1343.   ${settings.addBorder ? "border: 2px solid white;" : "border-color: var(--ujs-gray);"}
  1344. }
  1345. .ujs-not-downloaded .ujs-btn-background {
  1346.   background: var(--ujs-red);
  1347. }
  1348.  
  1349. .ujs-already-downloaded .ujs-btn-background {
  1350.   background: var(--ujs-blue);
  1351. }
  1352.  
  1353. .ujs-btn-done {
  1354.   box-shadow: 0 0 6px var(--ujs-green);
  1355. }
  1356. .ujs-btn-error {
  1357.   box-shadow: 0 0 6px var(--ujs-red);
  1358. }
  1359.  
  1360. .ujs-downloaded .ujs-btn-background {
  1361.   background: var(--ujs-green);
  1362. }
  1363.  
  1364. .ujs-error .ujs-btn-background {
  1365.   background: var(--ujs-error);
  1366. }
  1367.  
  1368. .ujs-btn-error-text {
  1369.   display: flex;
  1370.   align-items: center;
  1371.   justify-content: center;
  1372.   color: black;
  1373.   font-size: 100%;
  1374. }`;
  1375.     return css.slice(1);
  1376. }
  1377.  
  1378. /*
  1379. Features depend on:
  1380.  
  1381. addRequiredCSS:     IMAGE
  1382.  
  1383. expandSpoilers:     YES_VIEW_PROFILE, SHOW_NUDITY, VIEW
  1384. handleTitle:        QUOTES,           ON_TWITTER,  TWITTER
  1385. hideSignUpSection:  SIGNUP
  1386. hideTrends:         TRENDS
  1387.  
  1388. [unused]
  1389. hideAndMoveFooter:  FOOTER
  1390. */
  1391.  
  1392. // --- Twitter.LangConstants --- //
  1393. function getLanguageConstants() { // todo: "de", "fr"
  1394.     const defaultQuotes = [`"`, `"`];
  1395.  
  1396.     const SUPPORTED_LANGUAGES = ["en",                     "ru",                     "es",                                 "zh",               "ja",                       ];
  1397.  
  1398.     // texts
  1399.     const VIEW                = ["View",                   "Посмотреть",             "Ver",                                "查看",             "表示",                      ];
  1400.     const YES_VIEW_PROFILE    = ["Yes, view profile",      "Да, посмотреть профиль", "Sí, ver perfil",                     "是，查看个人资料",   "プロフィールを表示する",       ];
  1401.     const SHOW_NUDITY         = ["Show",                   "Показать",               "Mostrar",                            "显示",              "表示",                     ];
  1402.  
  1403.     // aria-label texts
  1404.     const IMAGE               = ["Image",                  "Изображение",            "Imagen",                             "图像",              "画像",                     ];
  1405.     const SIGNUP              = ["Sign up",                "Зарегистрироваться",     "Regístrate",                         "注册(不可用)",             "アカウント作成",              ];
  1406.     const TRENDS              = ["Timeline: Trending now", "Лента: Актуальные темы", "Cronología: Tendencias del momento", "时间线：当前趋势",   "タイムライン: トレンド",       ];
  1407.     const FOOTER              = ["Footer",                 "Нижний колонтитул",      "Pie de página",                      "页脚",             "フッター",                   ];
  1408.  
  1409.     // document.title "{AUTHOR}{ON_TWITTER} {QUOTES[0]}{TEXT}{QUOTES[1]} / {TWITTER}"
  1410.     const QUOTES              = [defaultQuotes,            [`«`, `»`],               defaultQuotes,                        defaultQuotes,      [`「`, `」`],                ];
  1411.     const ON_TWITTER          = [" on Twitter:",           " в Твиттере:",           " en Twitter:",                       " 在 Twitter:",      "さんはTwitterを使っています", ];
  1412.     const TWITTER             = ["Twitter",                "Твиттер",                "Twitter",                            "Twitter",          "Twitter",                  ];
  1413.  
  1414.     const lang = document.querySelector("html").getAttribute("lang");
  1415.     const langIndex = SUPPORTED_LANGUAGES.indexOf(lang);
  1416.  
  1417.     return {
  1418.         SUPPORTED_LANGUAGES,
  1419.         VIEW: VIEW[langIndex],
  1420.         YES_VIEW_PROFILE: YES_VIEW_PROFILE[langIndex],
  1421.         SHOW_NUDITY: SHOW_NUDITY[langIndex],
  1422.         IMAGE: IMAGE[langIndex],
  1423.         SIGNUP: SIGNUP[langIndex],
  1424.         TRENDS: TRENDS[langIndex],
  1425.         FOOTER: FOOTER[langIndex],
  1426.         QUOTES: QUOTES[langIndex],
  1427.         ON_TWITTER: ON_TWITTER[langIndex],
  1428.         TWITTER: TWITTER[langIndex],
  1429.     }
  1430. }
  1431.  
  1432. // --- Twitter.Tweet --- //
  1433. function hoistTweet() {
  1434.     class Tweet {
  1435.         constructor({elem, url}) {
  1436.             if (url) {
  1437.                 this.elem = null;
  1438.                 this.url = url;
  1439.             } else {
  1440.                 this.elem = elem;
  1441.                 this.url = Tweet.getUrl(elem);
  1442.             }
  1443.         }
  1444.  
  1445.         static of(innerElem) {
  1446.             // Workaround for media from a quoted tweet
  1447.             const url = innerElem.closest(`a[href^="/"]`)?.href;
  1448.             if (url && url.includes("/status/")) {
  1449.                 return new Tweet({url});
  1450.             }
  1451.  
  1452.             const elem = innerElem.closest(`[data-testid="tweet"]`);
  1453.             if (!elem) { // opened image
  1454.                 verbose && console.log("[ujs][Tweet.of]", "No-tweet elem");
  1455.             }
  1456.             return new Tweet({elem});
  1457.         }
  1458.  
  1459.         static getUrl(elem) {
  1460.             if (!elem) {
  1461.                 verbose && console.log("[ujs][Tweet.getUrl]", "Opened full screen image");
  1462.                 return location.href;
  1463.             }
  1464.             const quotedTweetAnchorEl = [...elem.querySelectorAll("a")].find(el => {
  1465.                 return el.childNodes[0]?.nodeName === "TIME";
  1466.             });
  1467.             if (quotedTweetAnchorEl) {
  1468.                 verbose && console.log("[ujs][Tweet.getUrl]", "Quoted/Re Tweet");
  1469.                 return quotedTweetAnchorEl.href;
  1470.             }
  1471.             verbose && console.log("[ujs][Tweet.getUrl]", "Unreachable"); // Is it used?
  1472.             return location.href;
  1473.         }
  1474.  
  1475.         get author() {
  1476.             return this.url.match(/(?<=twitter\.com\/).+?(?=\/)/)?.[0];
  1477.         }
  1478.  
  1479.         get id() {
  1480.             return this.url.match(/(?<=\/status\/)\d+/)?.[0];
  1481.         }
  1482.     }
  1483.  
  1484.     return Tweet;
  1485. }
  1486.  
  1487. // --- Twitter.API --- //
  1488. function hoistAPI() {
  1489.     class API {
  1490.         static guestToken = getCookie("gt");
  1491.         static csrfToken  = getCookie("ct0");  // todo: lazy — not available at the first run
  1492.         // Guest/Suspended account Bearer token
  1493.         static guestAuthorization = "Bearer AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH5E6I8xnZz4puTs%3D1Zv7ttfk8LF81IUq16cHjhLTvJu4FA33AGWWjCpTnA";
  1494.  
  1495.         // Seems to be outdated at 2022.05
  1496.         static async _requestBearerToken() {
  1497.             const scriptSrc = [...document.querySelectorAll("script")]
  1498.                 .find(el => el.src.match(/https:\/\/abs\.twimg\.com\/responsive-web\/client-web\/main[\w.]*\.js/)).src;
  1499.  
  1500.             let text;
  1501.             try {
  1502.                 text = await (await fetch(scriptSrc)).text();
  1503.             } catch (err) {
  1504.                 /* verbose && */ console.error("[ujs][_requestBearerToken][scriptSrc]", scriptSrc);
  1505.                 /* verbose && */ console.error("[ujs][_requestBearerToken]", err);
  1506.                 throw err;
  1507.             }
  1508.  
  1509.             const authorizationKey = text.match(/(?<=")AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH5E6I8xnZz4puTs%3D.+?(?=")/)[0];
  1510.             const authorization = `Bearer ${authorizationKey}`;
  1511.  
  1512.             return authorization;
  1513.         }
  1514.  
  1515.         static async getAuthorization() {
  1516.             if (!API.authorization) {
  1517.                 API.authorization = await API._requestBearerToken();
  1518.             }
  1519.             return API.authorization;
  1520.         }
  1521.  
  1522.         static requestCache = new Map();
  1523.         static vacuumCache() {
  1524.             if (API.requestCache.size > 16) {
  1525.                 API.requestCache.delete(API.requestCache.keys().next().value);
  1526.             }
  1527.         }
  1528.  
  1529.         static async apiRequest(url) {
  1530.             const _url = url.toString();
  1531.             verbose && console.log("[ujs][apiRequest]", _url);
  1532.  
  1533.             if (API.requestCache.has(_url)) {
  1534.                 verbose && console.log("[ujs][apiRequest] Use cached API request", _url);
  1535.                 return API.requestCache.get(_url);
  1536.             }
  1537.  
  1538.             // Hm... it is always the same. Even for a logged user.
  1539.             // const authorization = API.guestToken ? API.guestAuthorization : await API.getAuthorization();
  1540.             const authorization = API.guestAuthorization;
  1541.  
  1542.             // for debug
  1543.             verbose && sessionStorage.setItem("guestAuthorization", API.guestAuthorization);
  1544.             verbose && sessionStorage.setItem("authorization", API.authorization);
  1545.             verbose && sessionStorage.setItem("x-csrf-token", API.csrfToken);
  1546.             verbose && sessionStorage.setItem("x-guest-token", API.guestToken);
  1547.  
  1548.             const headers = new Headers({
  1549.                 authorization,
  1550.                 "x-csrf-token": API.csrfToken,
  1551.                 "x-twitter-client-language": "en",
  1552.                 "x-twitter-active-user": "yes"
  1553.             });
  1554.             if (API.guestToken) {
  1555.                 headers.append("x-guest-token", API.guestToken);
  1556.             } else { // may be skipped
  1557.                 headers.append("x-twitter-auth-type", "OAuth2Session");
  1558.             }
  1559.  
  1560.             let json;
  1561.             try {
  1562.                 const response = await fetch(_url, {headers});
  1563.                 json = await response.json();
  1564.                 if (response.ok) {
  1565.                     verbose && console.log("[ujs][apiRequest]", "Cache API request", _url);
  1566.                     API.vacuumCache();
  1567.                     API.requestCache.set(_url, json);
  1568.                 }
  1569.             } catch (err) {
  1570.                 /* verbose && */ console.error("[ujs][apiRequest]", _url);
  1571.                 /* verbose && */ console.error("[ujs][apiRequest]", err);
  1572.                 throw err;
  1573.             }
  1574.  
  1575.             verbose && console.log("[ujs][apiRequest][json]", JSON.stringify(json, null, " "));
  1576.             // 429 - [{code: 88, message: "Rate limit exceeded"}] — for suspended accounts
  1577.  
  1578.             return json;
  1579.         }
  1580.  
  1581.         static async getTweetJson(tweetId) {
  1582.             const url = API.createTweetJsonEndpointUrl(tweetId);
  1583.             const json = await API.apiRequest(url);
  1584.             verbose && console.log("[ujs][getTweetJson]", json, JSON.stringify(json));
  1585.             return json;
  1586.         }
  1587.  
  1588.         /** return {tweetResult, tweetLegacy, tweetUser} */
  1589.         static parseTweetJson(json, tweetId) {
  1590.             const instruction = json.data.threaded_conversation_with_injections_v2.instructions.find(ins => ins.type === "TimelineAddEntries");
  1591.             const tweetEntry  = instruction.entries.find(ins => ins.entryId === "tweet-" + tweetId);
  1592.             let tweetResult = tweetEntry.content.itemContent.tweet_results.result; // {"__typename": "Tweet"} // or {"__typename": "TweetWithVisibilityResults", tweet: {...}} (1641596499351212033)
  1593.             if (tweetResult.tweet) {
  1594.                 tweetResult = tweetResult.tweet;
  1595.             }
  1596.             verbose && console.log("[ujs][parseTweetJson] tweetResult", tweetResult, JSON.stringify(tweetResult));
  1597.             const tweetUser   = tweetResult.core.user_results.result; // {"__typename": "User"}
  1598.             const tweetLegacy = tweetResult.legacy;
  1599.             verbose && console.log("[ujs][parseTweetJson] tweetLegacy", tweetLegacy, JSON.stringify(tweetLegacy));
  1600.             verbose && console.log("[ujs][parseTweetJson] tweetUser", tweetUser, JSON.stringify(tweetUser));
  1601.             return {tweetResult, tweetLegacy, tweetUser};
  1602.         }
  1603.  
  1604.         /**
  1605.          * @typedef {Object} TweetMediaEntry
  1606.          * @property {string} screen_name - "kreamu"
  1607.          * @property {string} tweet_id - "1687962620173733890"
  1608.          * @property {string} download_url - "https://pbs.twimg.com/media/FWYvXNMXgAA7se2?format=jpg&name=orig"
  1609.          * @property {"photo" | "video"} type - "photo"
  1610.          * @property {"photo" | "video" | "animated_gif"} type_original - "photo"
  1611.          * @property {number} index - 0
  1612.          * @property {number} type_index - 0
  1613.          * @property {number} type_index_original - 0
  1614.          * @property {string} preview_url - "https://pbs.twimg.com/media/FWYvXNMXgAA7se2.jpg"
  1615.          * @property {string} media_id  -   "1687949851516862464"
  1616.          * @property {string} media_key - "7_1687949851516862464"
  1617.          * @property {string} expanded_url - "https://twitter.com/kreamu/status/1687962620173733890/video/1"
  1618.          * @property {string} short_expanded_url - "pic.twitter.com/KeXR8T910R"
  1619.          * @property {string} short_tweet_url - "https://t.co/KeXR8T910R"
  1620.          * @property {string} tweet_text - "Tracer providing some In-flight entertainment"
  1621.          */
  1622.         /** @returns {TweetMediaEntry[]} */
  1623.         static parseTweetLegacyMedias(tweetResult, tweetLegacy, tweetUser) {
  1624.             if (!tweetLegacy.extended_entities || !tweetLegacy.extended_entities.media) {
  1625.                 return [];
  1626.             }
  1627.  
  1628.             const medias = [];
  1629.             const typeIndex = {}; // "photo", "video", "animated_gif"
  1630.             let index = -1;
  1631.  
  1632.             for (const media of tweetLegacy.extended_entities.media) {
  1633.                 index++;
  1634.                 let   type          = media.type;
  1635.                 const type_original = media.type;
  1636.                 typeIndex[type] = (typeIndex[type] === undefined ? -1 : typeIndex[type]) + 1;
  1637.                 if (type === "animated_gif") {
  1638.                     type = "video";
  1639.                     typeIndex[type] = (typeIndex[type] === undefined ? -1 : typeIndex[type]) + 1;
  1640.                 }
  1641.  
  1642.                 let download_url;
  1643.                 if (media.video_info) {
  1644.                     const videoInfo = media.video_info.variants
  1645.                         .filter(el => el.bitrate !== undefined) // if content_type: "application/x-mpegURL" // .m3u8
  1646.                         .reduce((acc, cur) => cur.bitrate > acc.bitrate ? cur : acc);
  1647.                     download_url = videoInfo.url;
  1648.                 } else {
  1649.                     if (media.media_url_https.includes("?format=")) {
  1650.                         download_url = media.media_url_https;
  1651.                     } else {
  1652.                         // "https://pbs.twimg.com/media/FWYvXNMXgAA7se2.jpg" -> "https://pbs.twimg.com/media/FWYvXNMXgAA7se2?format=jpg&name=orig"
  1653.                         const parts = media.media_url_https.split(".");
  1654.                         const ext = parts[parts.length - 1];
  1655.                         const urlPart = parts.slice(0, -1).join(".");
  1656.                         download_url = `${urlPart}?format=${ext}&name=orig`;
  1657.                     }
  1658.                 }
  1659.  
  1660.                 const screen_name   = tweetUser.legacy.screen_name;              // "kreamu"
  1661.                 const tweet_id      = tweetResult.rest_id || tweetLegacy.id_str; // "1687962620173733890"
  1662.  
  1663.                 const type_index          = typeIndex[type];          // 0
  1664.                 const type_index_original = typeIndex[type_original]; // 0
  1665.  
  1666.                 const preview_url = media.media_url_https; // "https://pbs.twimg.com/ext_tw_video_thumb/1687949851516862464/pu/img/mTBjwz--nylYk5Um.jpg"
  1667.                 const media_id    = media.id_str;          //   "1687949851516862464"
  1668.                 const media_key   = media.media_key;       // "7_1687949851516862464"
  1669.  
  1670.                 const expanded_url       = media.expanded_url; // "https://twitter.com/kreamu/status/1687962620173733890/video/1"
  1671.                 const short_expanded_url = media.display_url;  // "pic.twitter.com/KeXR8T910R"
  1672.                 const short_tweet_url    = media.url;          // "https://t.co/KeXR8T910R"
  1673.                 const tweet_text = tweetLegacy.full_text       // "Tracer providing some In-flight entertainment https://t.co/KeXR8T910R"
  1674.                                               .replace(` ${media.url}`, "");
  1675.  
  1676.                 // {screen_name, tweet_id, download_url, preview_url, type_index}
  1677.                 /** @type {TweetMediaEntry} */
  1678.                 const mediaEntry = {
  1679.                     screen_name, tweet_id,
  1680.                     download_url, type, type_original, index,
  1681.                     type_index, type_index_original,
  1682.                     preview_url, media_id, media_key,
  1683.                     expanded_url, short_expanded_url, short_tweet_url, tweet_text,
  1684.                 };
  1685.                 medias.push(mediaEntry);
  1686.             }
  1687.  
  1688.             verbose && console.log("[ujs][parseTweetLegacyMedias] medias", medias);
  1689.             return medias;
  1690.         }
  1691.  
  1692.         static async getTweetMedias(tweetId) {
  1693.             const tweetJson = await API.getTweetJson(tweetId);
  1694.             const {tweetResult, tweetLegacy, tweetUser} = API.parseTweetJson(tweetJson, tweetId);
  1695.  
  1696.             let result = API.parseTweetLegacyMedias(tweetResult, tweetLegacy, tweetUser);
  1697.  
  1698.             if (tweetResult.quoted_status_result) {
  1699.                 const tweetResultQuoted = tweetResult.quoted_status_result.result;
  1700.                 const tweetLegacyQuoted = tweetResultQuoted.legacy;
  1701.                 const tweetUserQuoted   = tweetResultQuoted.core.user_results.result;
  1702.                 result = [...result, ...API.parseTweetLegacyMedias(tweetResultQuoted, tweetLegacyQuoted, tweetUserQuoted)];
  1703.             }
  1704.  
  1705.             return result;
  1706.         }
  1707.  
  1708.  
  1709.         // todo: keep `queryId` updated
  1710.         // https://github.com/fa0311/TwitterInternalAPIDocument/blob/master/docs/json/API.json
  1711.         static TweetDetailQueryId      = "xOhkmRac04YFZmOzU9PJHg"; // TweetDetail      (for videos)
  1712.         static UserByScreenNameQueryId = "G3KGOASz96M-Qu0nwmGXNg"; // UserByScreenName (for the direct user profile url)
  1713.  
  1714.         static createTweetJsonEndpointUrl(tweetId) {
  1715.             const variables = {
  1716.                 "focalTweetId": tweetId,
  1717.                 "with_rux_injections": false,
  1718.                 "includePromotedContent": true,
  1719.                 "withCommunity": true,
  1720.                 "withQuickPromoteEligibilityTweetFields": true,
  1721.                 "withBirdwatchNotes": true,
  1722.                 "withVoice": true,
  1723.                 "withV2Timeline": true
  1724.             };
  1725.             const features = {
  1726.                 "rweb_lists_timeline_redesign_enabled": true,
  1727.                 "responsive_web_graphql_exclude_directive_enabled": true,
  1728.                 "verified_phone_label_enabled": false,
  1729.                 "creator_subscriptions_tweet_preview_api_enabled": true,
  1730.                 "responsive_web_graphql_timeline_navigation_enabled": true,
  1731.                 "responsive_web_graphql_skip_user_profile_image_extensions_enabled": false,
  1732.                 "tweetypie_unmention_optimization_enabled": true,
  1733.                 "responsive_web_edit_tweet_api_enabled": true,
  1734.                 "graphql_is_translatable_rweb_tweet_is_translatable_enabled": true,
  1735.                 "view_counts_everywhere_api_enabled": true,
  1736.                 "longform_notetweets_consumption_enabled": true,
  1737.                 "responsive_web_twitter_article_tweet_consumption_enabled": false,
  1738.                 "tweet_awards_web_tipping_enabled": false,
  1739.                 "freedom_of_speech_not_reach_fetch_enabled": true,
  1740.                 "standardized_nudges_misinfo": true,
  1741.                 "tweet_with_visibility_results_prefer_gql_limited_actions_policy_enabled": true,
  1742.                 "longform_notetweets_rich_text_read_enabled": true,
  1743.                 "longform_notetweets_inline_media_enabled": true,
  1744.                 "responsive_web_media_download_video_enabled": false,
  1745.                 "responsive_web_enhance_cards_enabled": false
  1746.             };
  1747.             const fieldToggles = {
  1748.                 "withArticleRichContentState": false
  1749.             };
  1750.  
  1751.             const urlBase = `https://twitter.com/i/api/graphql/${API.TweetDetailQueryId}/TweetDetail`;
  1752.             const urlObj = new URL(urlBase);
  1753.             urlObj.searchParams.set("variables", JSON.stringify(variables));
  1754.             urlObj.searchParams.set("features", JSON.stringify(features));
  1755.             urlObj.searchParams.set("fieldToggles", JSON.stringify(fieldToggles));
  1756.             const url = urlObj.toString();
  1757.             return url;
  1758.         }
  1759.  
  1760.         static async getUserInfo(username) {
  1761.             const variables = JSON.stringify({
  1762.                 "screen_name": username,
  1763.                 "withSafetyModeUserFields": true,
  1764.                 "withSuperFollowsUserFields": true
  1765.             });
  1766.             const url = `https://twitter.com/i/api/graphql/${API.UserByScreenNameQueryId}/UserByScreenName?variables=${encodeURIComponent(variables)}`;
  1767.             const json = await API.apiRequest(url);
  1768.             verbose && console.log("[ujs][getUserInfo][json]", json);
  1769.             return json.data.user.result.legacy.entities.url?.urls[0].expanded_url;
  1770.         }
  1771.     }
  1772.  
  1773.     return API;
  1774. }
  1775.  
  1776. function getHistoryHelper() {
  1777.     function migrateLocalStore() {
  1778.         // 2023.07.05 // todo: uncomment after two+ months
  1779.         // Currently I disable it for cases if some browser's tabs uses the old version of the script.
  1780.         // const migrated = localStorage.getItem(StorageNames.migrated);
  1781.         // if (migrated === "true") {
  1782.         //     return;
  1783.         // }
  1784.  
  1785.         const newToOldNameMap = [
  1786.             [StorageNames.settings,                StorageNamesOld.settings],
  1787.             [StorageNames.settingsImageHistoryBy,  StorageNamesOld.settingsImageHistoryBy],
  1788.             [StorageNames.downloadedImageNames,    StorageNamesOld.downloadedImageNames],
  1789.             [StorageNames.downloadedImageTweetIds, StorageNamesOld.downloadedImageTweetIds],
  1790.             [StorageNames.downloadedVideoTweetIds, StorageNamesOld.downloadedVideoTweetIds],
  1791.         ];
  1792.  
  1793.         /**
  1794.          * @param {string} newName
  1795.          * @param {string} oldName
  1796.          * @param {string} value
  1797.          */
  1798.         function setValue(newName, oldName, value) {
  1799.             try {
  1800.                 localStorage.setItem(newName, value);
  1801.             } catch (err) {
  1802.                 localStorage.removeItem(oldName); // if there is no space ("exceeded the quota")
  1803.                 localStorage.setItem(newName, value);
  1804.             }
  1805.             localStorage.removeItem(oldName);
  1806.         }
  1807.  
  1808.         function mergeOldWithNew({newName, oldName}) {
  1809.             const oldValueStr = localStorage.getItem(oldName);
  1810.             if (oldValueStr === null) {
  1811.                 return;
  1812.             }
  1813.             const newValueStr = localStorage.getItem(newName);
  1814.             if (newValueStr === null) {
  1815.                 setValue(newName, oldName, oldValueStr);
  1816.                 return;
  1817.             }
  1818.             try {
  1819.                 const oldValue = JSON.parse(oldValueStr);
  1820.                 const newValue = JSON.parse(newValueStr);
  1821.                 if (Array.isArray(oldValue) && Array.isArray(newValue)) {
  1822.                     const resultArray = [...new Set([...newValue, ...oldValue])];
  1823.                     const resultArrayStr = JSON.stringify(resultArray);
  1824.                     setValue(newName, oldName, resultArrayStr);
  1825.                 }
  1826.             } catch (err) {
  1827.                 // return;
  1828.             }
  1829.         }
  1830.  
  1831.         for (const [newName, oldName] of newToOldNameMap) {
  1832.             mergeOldWithNew({newName, oldName});
  1833.         }
  1834.         // localStorage.setItem(StorageNames.migrated, "true");
  1835.     }
  1836.  
  1837.     function exportHistory(onDone) {
  1838.         const exportObject = [
  1839.             StorageNames.settings,
  1840.             StorageNames.settingsImageHistoryBy,
  1841.             StorageNames.downloadedImageNames,    // only if "settingsImageHistoryBy" === "IMAGE_NAME" (by default)
  1842.             StorageNames.downloadedImageTweetIds, // only if "settingsImageHistoryBy" === "TWEET_ID" (need to set manually with DevTools)
  1843.             StorageNames.downloadedVideoTweetIds,
  1844.         ].reduce((acc, name) => {
  1845.             const valueStr = localStorage.getItem(name);
  1846.             if (valueStr === null) {
  1847.                 return acc;
  1848.             }
  1849.             let value = JSON.parse(valueStr);
  1850.             if (Array.isArray(value)) {
  1851.                 value = [...new Set(value)];
  1852.             }
  1853.             acc[name] = value;
  1854.             return acc;
  1855.         }, {});
  1856.         const browserName = localStorage.getItem(StorageNames.browserName) || getBrowserName();
  1857.         const browserLine = browserName ? "-" + browserName : "";
  1858.  
  1859.         downloadBlob(new Blob([toLineJSON(exportObject, true)]), `ujs-twitter-click-n-save-export-${dateToDayDateString(new Date())}${browserLine}.json`);
  1860.         onDone();
  1861.     }
  1862.  
  1863.     function verify(jsonObject) {
  1864.         if (Array.isArray(jsonObject)) {
  1865.             throw new Error("Wrong object! JSON contains an array.");
  1866.         }
  1867.         if (Object.keys(jsonObject).some(key => !key.startsWith("ujs-twitter-click-n-save"))) {
  1868.             throw new Error("Wrong object! The keys should start with 'ujs-twitter-click-n-save'.");
  1869.         }
  1870.     }
  1871.  
  1872.     function importHistory(onDone, onError) {
  1873.         const importInput = document.createElement("input");
  1874.         importInput.type = "file";
  1875.         importInput.accept = "application/json";
  1876.         importInput.style.display = "none";
  1877.         document.body.prepend(importInput);
  1878.         importInput.addEventListener("change", async _event => {
  1879.             let json;
  1880.             try {
  1881.                 json = JSON.parse(await importInput.files[0].text());
  1882.                 verify(json);
  1883.  
  1884.                 Object.entries(json).forEach(([key, value]) => {
  1885.                     if (Array.isArray(value)) {
  1886.                         value = [...new Set(value)];
  1887.                     }
  1888.                     localStorage.setItem(key, JSON.stringify(value));
  1889.                 });
  1890.                 onDone();
  1891.             } catch (err) {
  1892.                 onError(err);
  1893.             } finally {
  1894.                 await sleep(1000);
  1895.                 importInput.remove();
  1896.             }
  1897.         });
  1898.         importInput.click();
  1899.     }
  1900.  
  1901.     function mergeHistory(onDone, onError) { // Only merges arrays
  1902.         const mergeInput = document.createElement("input");
  1903.         mergeInput.type = "file";
  1904.         mergeInput.accept = "application/json";
  1905.         mergeInput.style.display = "none";
  1906.         document.body.prepend(mergeInput);
  1907.         mergeInput.addEventListener("change", async _event => {
  1908.             let json;
  1909.             try {
  1910.                 json = JSON.parse(await mergeInput.files[0].text());
  1911.                 verify(json);
  1912.                 Object.entries(json).forEach(([key, value]) => {
  1913.                     if (!Array.isArray(value)) {
  1914.                         return;
  1915.                     }
  1916.                     const existedValue = JSON.parse(localStorage.getItem(key));
  1917.                     if (Array.isArray(existedValue)) {
  1918.                         const resultValue = [...new Set([...existedValue, ...value])];
  1919.                         localStorage.setItem(key, JSON.stringify(resultValue));
  1920.                     } else {
  1921.                         localStorage.setItem(key, JSON.stringify(value));
  1922.                     }
  1923.                 });
  1924.                 onDone();
  1925.             } catch (err) {
  1926.                 onError(err);
  1927.             } finally {
  1928.                 await sleep(1000);
  1929.                 mergeInput.remove();
  1930.             }
  1931.         });
  1932.         mergeInput.click();
  1933.     }
  1934.  
  1935.     return {exportHistory, importHistory, mergeHistory, migrateLocalStore};
  1936. }
  1937.  
  1938. // ---------------------------------------------------------------------------------------------------------------------
  1939. // ---------------------------------------------------------------------------------------------------------------------
  1940. // --- Common Utils --- //
  1941.  
  1942. // --- LocalStorage util class --- //
  1943. function hoistLS(settings = {}) {
  1944.     const {
  1945.         verbose, // debug "messages" in the document.title
  1946.     } = settings;
  1947.  
  1948.     class LS {
  1949.         constructor(name) {
  1950.             this.name = name;
  1951.         }
  1952.         getItem(defaultValue) {
  1953.             return LS.getItem(this.name, defaultValue);
  1954.         }
  1955.         setItem(value) {
  1956.             LS.setItem(this.name, value);
  1957.         }
  1958.         removeItem() {
  1959.             LS.removeItem(this.name);
  1960.         }
  1961.         async pushItem(value) {  // array method
  1962.             await LS.pushItem(this.name, value);
  1963.         }
  1964.         async popItem(value) {   // array method
  1965.             await LS.popItem(this.name, value);
  1966.         }
  1967.         hasItem(value) {         // array method
  1968.             return LS.hasItem(this.name, value);
  1969.         }
  1970.  
  1971.         static getItem(name, defaultValue) {
  1972.             const value = localStorage.getItem(name);
  1973.             if (value === undefined) {
  1974.                 return undefined;
  1975.             }
  1976.             if (value === null) { // when there is no such item
  1977.                 LS.setItem(name, defaultValue);
  1978.                 return defaultValue;
  1979.             }
  1980.             return JSON.parse(value);
  1981.         }
  1982.         static setItem(name, value) {
  1983.             localStorage.setItem(name, JSON.stringify(value));
  1984.         }
  1985.         static removeItem(name) {
  1986.             localStorage.removeItem(name);
  1987.         }
  1988.         static async pushItem(name, value) {
  1989.             const array = LS.getItem(name, []);
  1990.             array.push(value);
  1991.             LS.setItem(name, array);
  1992.  
  1993.             //sanity check
  1994.             await sleep(50);
  1995.             if (!LS.hasItem(name, value)) {
  1996.                 if (verbose) {
  1997.                     document.title = "🟥" + document.title;
  1998.                 }
  1999.                 await LS.pushItem(name, value);
  2000.             }
  2001.         }
  2002.         static async popItem(name, value) { // remove from an array
  2003.             const array = LS.getItem(name, []);
  2004.             if (array.indexOf(value) !== -1) {
  2005.                 array.splice(array.indexOf(value), 1);
  2006.                 LS.setItem(name, array);
  2007.  
  2008.                 //sanity check
  2009.                 await sleep(50);
  2010.                 if (LS.hasItem(name, value)) {
  2011.                     if (verbose) {
  2012.                         document.title = "🟨" + document.title;
  2013.                     }
  2014.                     await LS.popItem(name, value);
  2015.                 }
  2016.             }
  2017.         }
  2018.         static hasItem(name, value) { // has in array
  2019.             const array = LS.getItem(name, []);
  2020.             return array.indexOf(value) !== -1;
  2021.         }
  2022.     }
  2023.  
  2024.     return LS;
  2025. }
  2026.  
  2027. // --- Just groups them in a function for the convenient code looking --- //
  2028. function getUtils({verbose}) {
  2029.     function sleep(time) {
  2030.         return new Promise(resolve => setTimeout(resolve, time));
  2031.     }
  2032.  
  2033.     async function fetchResource(url, onProgress = props => console.log(props)) {
  2034.         try {
  2035.             /** @type {Response} */
  2036.             let response = await fetch(url, {
  2037.                 // cache: "force-cache",
  2038.             });
  2039.             const lastModifiedDateSeconds = response.headers.get("last-modified");
  2040.             const contentType = response.headers.get("content-type");
  2041.  
  2042.             const lastModifiedDate = dateToDayDateString(lastModifiedDateSeconds);
  2043.             const extension = contentType ? extensionFromMime(contentType) : null;
  2044.  
  2045.             if (onProgress) {
  2046.                 response = responseProgressProxy(response, onProgress);
  2047.             }
  2048.  
  2049.             const blob = await response.blob();
  2050.  
  2051.             // https://pbs.twimg.com/media/AbcdEFgijKL01_9?format=jpg&name=orig                                     -> AbcdEFgijKL01_9
  2052.             // https://pbs.twimg.com/ext_tw_video_thumb/1234567890123456789/pu/img/Ab1cd2345EFgijKL.jpg?name=orig   -> Ab1cd2345EFgijKL.jpg
  2053.             // https://video.twimg.com/ext_tw_video/1234567890123456789/pu/vid/946x720/Ab1cd2345EFgijKL.mp4?tag=10  -> Ab1cd2345EFgijKL.mp4
  2054.             const _url = new URL(url);
  2055.             const {filename} = (_url.origin + _url.pathname).match(/(?<filename>[^\/]+$)/).groups;
  2056.  
  2057.             const {name} = filename.match(/(?<name>^[^.]+)/).groups;
  2058.             return {blob, lastModifiedDate, contentType, extension, name, status: response.status};
  2059.         } catch (error) {
  2060.             verbose && console.error("[ujs][fetchResource]", url);
  2061.             verbose && console.error("[ujs][fetchResource]", error);
  2062.             throw error;
  2063.         }
  2064.     }
  2065.  
  2066.     function extensionFromMime(mimeType) {
  2067.         let extension = mimeType.match(/(?<=\/).+/)[0];
  2068.         extension = extension === "jpeg" ? "jpg" : extension;
  2069.         return extension;
  2070.     }
  2071.  
  2072.     // the original download url will be posted as hash of the blob url, so you can check it in the download manager's history
  2073.     function downloadBlob(blob, name, url) {
  2074.         const anchor = document.createElement("a");
  2075.         anchor.setAttribute("download", name || "");
  2076.         const blobUrl = URL.createObjectURL(blob);
  2077.         anchor.href = blobUrl + (url ? ("#" + url) : "");
  2078.         anchor.click();
  2079.         setTimeout(() => URL.revokeObjectURL(blobUrl), 30000);
  2080.     }
  2081.  
  2082.     // "Sun, 10 Jan 2021 22:22:22 GMT" -> "2021.01.10"
  2083.     function dateToDayDateString(dateValue, utc = true) {
  2084.         const _date = new Date(dateValue);
  2085.         function pad(str) {
  2086.             return str.toString().padStart(2, "0");
  2087.         }
  2088.         const _utc = utc ? "UTC" : "";
  2089.         const year  = _date[`get${_utc}FullYear`]();
  2090.         const month = _date[`get${_utc}Month`]() + 1;
  2091.         const date  = _date[`get${_utc}Date`]();
  2092.  
  2093.         return year + "." + pad(month) + "." + pad(date);
  2094.     }
  2095.  
  2096.     function addCSS(css) {
  2097.         const styleElem = document.createElement("style");
  2098.         styleElem.textContent = css;
  2099.         document.body.append(styleElem);
  2100.         return styleElem;
  2101.     }
  2102.  
  2103.     function getCookie(name) {
  2104.         verbose && console.log("[ujs][getCookie]", document.cookie);
  2105.         const regExp = new RegExp(`(?<=${name}=)[^;]+`);
  2106.         return document.cookie.match(regExp)?.[0];
  2107.     }
  2108.  
  2109.     function throttle(runnable, time = 50) {
  2110.         let waiting = false;
  2111.         let queued = false;
  2112.         let context;
  2113.         let args;
  2114.  
  2115.         return function() {
  2116.             if (!waiting) {
  2117.                 waiting = true;
  2118.                 setTimeout(function() {
  2119.                     if (queued) {
  2120.                         runnable.apply(context, args);
  2121.                         context = args = undefined;
  2122.                     }
  2123.                     waiting = queued = false;
  2124.                 }, time);
  2125.                 return runnable.apply(this, arguments);
  2126.             } else {
  2127.                 queued = true;
  2128.                 context = this;
  2129.                 args = arguments;
  2130.             }
  2131.         }
  2132.     }
  2133.  
  2134.     function throttleWithResult(func, time = 50) {
  2135.         let waiting = false;
  2136.         let args;
  2137.         let context;
  2138.         let timeout;
  2139.         let promise;
  2140.  
  2141.         return async function() {
  2142.             if (!waiting) {
  2143.                 waiting = true;
  2144.                 timeout = new Promise(async resolve => {
  2145.                     await sleep(time);
  2146.                     waiting = false;
  2147.                     resolve();
  2148.                 });
  2149.                 return func.apply(this, arguments);
  2150.             } else {
  2151.                 args = arguments;
  2152.                 context = this;
  2153.             }
  2154.  
  2155.             if (!promise) {
  2156.                 promise = new Promise(async resolve => {
  2157.                     await timeout;
  2158.                     const result = func.apply(context, args);
  2159.                     args = context = promise = undefined;
  2160.                     resolve(result);
  2161.                 });
  2162.             }
  2163.             return promise;
  2164.         }
  2165.     }
  2166.  
  2167.     function xpath(path, node = document) {
  2168.         let xPathResult = document.evaluate(path, node, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
  2169.         return xPathResult.singleNodeValue;
  2170.     }
  2171.     function xpathAll(path, node = document) {
  2172.         let xPathResult = document.evaluate(path, node, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
  2173.         const nodes = [];
  2174.         try {
  2175.             let node = xPathResult.iterateNext();
  2176.  
  2177.             while (node) {
  2178.                 nodes.push(node);
  2179.                 node = xPathResult.iterateNext();
  2180.             }
  2181.             return nodes;
  2182.         } catch (err) {
  2183.             // todo need investigate it
  2184.             console.error(err); // "The document has mutated since the result was returned."
  2185.             return [];
  2186.         }
  2187.     }
  2188.  
  2189.     const identityContentEncodings = new Set([null, "identity", "no encoding"]);
  2190.     function getOnProgressProps(response) {
  2191.         const {headers, status, statusText, url, redirected, ok} = response;
  2192.         const isIdentity = identityContentEncodings.has(headers.get("Content-Encoding"));
  2193.         const compressed = !isIdentity;
  2194.         const _contentLength = parseInt(headers.get("Content-Length")); // `get()` returns `null` if no header present
  2195.         const contentLength = isNaN(_contentLength) ? null : _contentLength;
  2196.         const lengthComputable = isIdentity && _contentLength !== null;
  2197.  
  2198.         // Original XHR behaviour; in TM it equals to `contentLength`, or `-1` if `contentLength` is `null` (and `0`?).
  2199.         const total = lengthComputable ? contentLength : 0;
  2200.         const gmTotal = contentLength > 0 ? contentLength : -1; // Like `total` is in TM and GM.
  2201.  
  2202.         return {
  2203.             gmTotal, total, lengthComputable,
  2204.             compressed, contentLength,
  2205.             headers, status, statusText, url, redirected, ok
  2206.         };
  2207.     }
  2208.     function responseProgressProxy(response, onProgress) {
  2209.         const onProgressProps = getOnProgressProps(response);
  2210.         let loaded = 0;
  2211.         const reader = response.body.getReader();
  2212.         const readableStream = new ReadableStream({
  2213.             async start(controller) {
  2214.                 while (true) {
  2215.                     const {done, /** @type {Uint8Array} */ value} = await reader.read();
  2216.                     if (done) {
  2217.                         break;
  2218.                     }
  2219.                     loaded += value.length;
  2220.                     try {
  2221.                         onProgress({loaded, ...onProgressProps});
  2222.                     } catch (err) {
  2223.                         console.error("[ujs][onProgress]:", err);
  2224.                     }
  2225.                     controller.enqueue(value);
  2226.                 }
  2227.                 controller.close();
  2228.                 reader.releaseLock();
  2229.             },
  2230.             cancel() {
  2231.                 void reader.cancel();
  2232.             }
  2233.         });
  2234.         return new ResponseEx(readableStream, response);
  2235.     }
  2236.     class ResponseEx extends Response {
  2237.         [Symbol.toStringTag] = "ResponseEx";
  2238.  
  2239.         constructor(body, {headers, status, statusText, url, redirected, type, ok}) {
  2240.             super(body, {
  2241.                 status, statusText, headers: {
  2242.                     ...headers,
  2243.                     "content-type": headers.get("content-type")?.split("; ")[0] // Fixes Blob type ("text/html; charset=UTF-8") in TM
  2244.                 }
  2245.             });
  2246.             this._type = type;
  2247.             this._url = url;
  2248.             this._redirected = redirected;
  2249.             this._ok = ok;
  2250.             this._headers = headers; // `HeadersLike` is more user-friendly for debug than the original `Headers` object
  2251.         }
  2252.         get redirected() { return this._redirected; }
  2253.         get url() { return this._url; }
  2254.         get type() { return this._type || "basic"; }
  2255.         get ok() { return this._ok; }
  2256.         /** @returns {Headers} - `Headers`-like object */
  2257.         get headers() { return this._headers; }
  2258.     }
  2259.  
  2260.     function toLineJSON(object, prettyHead = false) {
  2261.         let result = "{\n";
  2262.         const entries = Object.entries(object);
  2263.         const length = entries.length;
  2264.         if (prettyHead && length > 0) {
  2265.             result += `"${entries[0][0]}":${JSON.stringify(entries[0][1], null, " ")}`;
  2266.             if (length > 1) {
  2267.                 result += `,\n\n`;
  2268.             }
  2269.         }
  2270.         for (let i = 1; i < length - 1; i++) {
  2271.             result += `"${entries[i][0]}":${JSON.stringify(entries[i][1])},\n`;
  2272.         }
  2273.         if (length > 0 && !prettyHead || length > 1) {
  2274.             result += `"${entries[length - 1][0]}":${JSON.stringify(entries[length - 1][1])}`;
  2275.         }
  2276.         result += `\n}`;
  2277.         return result;
  2278.     }
  2279.  
  2280.     const isFirefox = navigator.userAgent.toLowerCase().indexOf("firefox") !== -1;
  2281.  
  2282.     function getBrowserName() {
  2283.         const userAgent = window.navigator.userAgent.toLowerCase();
  2284.         return userAgent.indexOf("edge") > -1 ? "edge-legacy"
  2285.             : userAgent.indexOf("edg") > -1 ? "edge"
  2286.             : userAgent.indexOf("opr") > -1 && !!window.opr ? "opera"
  2287.             : userAgent.indexOf("chrome") > -1 && !!window.chrome ? "chrome"
  2288.             : userAgent.indexOf("firefox") > -1 ? "firefox"
  2289.             : userAgent.indexOf("safari") > -1 ? "safari"
  2290.             : "";
  2291.     }
  2292.  
  2293.     function removeSearchParams(url) {
  2294.         const urlObj = new URL(url);
  2295.         const keys = []; // FF + VM fix // Instead of [...urlObj.searchParams.keys()]
  2296.         urlObj.searchParams.forEach((v, k) => { keys.push(k); });
  2297.         for (const key of keys) {
  2298.             urlObj.searchParams.delete(key);
  2299.         }
  2300.         return urlObj.toString();
  2301.     }
  2302.  
  2303.     return {
  2304.         sleep, fetchResource, extensionFromMime, downloadBlob, dateToDayDateString,
  2305.         addCSS,
  2306.         getCookie,
  2307.         throttle, throttleWithResult,
  2308.         xpath, xpathAll,
  2309.         responseProgressProxy,
  2310.         toLineJSON,
  2311.         isFirefox,
  2312.         getBrowserName,
  2313.         removeSearchParams,
  2314.     }
  2315. }
  2316.  
  2317. // ---------------------------------------------------------------------------------------------------------------------
  2318. // ---------------------------------------------------------------------------------------------------------------------

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