☰

Image Viewer

View full image without leaving the page

当前为 2022-05-14 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Image Viewer
  3. // @version      1.2.0
  4. // @description  View full image without leaving the page
  5. // @namespace    https://github.com/nikolay-borzov
  6. // @author       nikolay-borzov
  7. // @license      MIT
  8. // @icon         https://raw.githubusercontent.com/nikolay-borzov/user-scripts/master/image-viewer/icon.png
  9. // @homepageURL  https://github.com/nikolay-borzov/user-scripts
  10. // @homepage     https://github.com/nikolay-borzov/user-scripts
  11. // @supportURL   https://github.com/nikolay-borzov/user-scripts/issues
  12. // @match        *://*/*
  13. // @connect      imagebam.com
  14. // @connect      imagevenue.com
  15. // @connect      www.turboimagehost.com
  16. // @connect      fastpic.ru
  17. // @connect      fastpic.org
  18. // @connect      radikal.ru
  19. // @connect      imagetwist.com
  20. // @noframes
  21. // @run-at       document-start
  22. // @grant        GM_addStyle
  23. // @grant        GM_xmlhttpRequest
  24. // @grant        GM.xmlHttpRequest
  25. // @grant        GM_setValue
  26. // @grant        GM.setValue
  27. // @grant        GM_getValue
  28. // @grant        GM.getValue
  29. // @grant        GM_registerMenuCommand
  30. // @grant        GM.registerMenuCommand
  31. // ==/UserScript==
  32.  
  33. ;(function () {
  34.   /* global Bliss */
  35.   // eslint-disable-next-line
  36.   !(function(){function t(e,n,i){return n=void 0===n?1:n,i=i||n+1,i-n<=1?function(){if(arguments.length<=n||"string"===r.type(arguments[n]))return e.apply(this,arguments);var t,i=arguments[n];for(var o in i){var s=Array.prototype.slice.call(arguments);s.splice(n,1,o,i[o]),t=e.apply(this,s);}return t}:t(t(e,n+1,i),n,i-1)}function e(t,r,i){var o=n(i);if("string"===o){var s=Object.getOwnPropertyDescriptor(r,i);!s||s.writable&&s.configurable&&s.enumerable&&!s.get&&!s.set?t[i]=r[i]:(delete t[i],Object.defineProperty(t,i,s));}else if("array"===o)i.forEach(function(n){n in r&&e(t,r,n);});else for(var a in r)i&&("regexp"===o&&!i.test(a)||"function"===o&&!i.call(r,a))||e(t,r,a);return t}function n(t){if(null===t)return "null";if(void 0===t)return "undefined";var e=(Object.prototype.toString.call(t).match(/^\[object\s+(.*?)\]$/)[1]||"").toLowerCase();return "number"==e&&isNaN(t)?"nan":e}var r=self.Bliss=e(function(t,e){return 2==arguments.length&&!e||!t?null:"string"===r.type(t)?(e||document).querySelector(t):t||null},self.Bliss);e(r,{extend:e,overload:t,type:n,property:r.property||"_",listeners:self.WeakMap?new WeakMap:new Map,original:{addEventListener:(self.EventTarget||Node).prototype.addEventListener,removeEventListener:(self.EventTarget||Node).prototype.removeEventListener},sources:{},noop:function(){},$:function(t,e){return t instanceof Node||t instanceof Window?[t]:2!=arguments.length||e?Array.prototype.slice.call("string"==typeof t?(e||document).querySelectorAll(t):t||[]):[]},defined:function(){for(var t=0;t<arguments.length;t++)if(void 0!==arguments[t])return arguments[t]},create:function(t,e){return t instanceof Node?r.set(t,e):(1===arguments.length&&("string"===r.type(t)?e={}:(e=t,t=e.tag,e=r.extend({},e,function(t){return "tag"!==t}))),r.set(document.createElement(t||"div"),e))},each:function(t,e,n){n=n||{};for(var r in t)n[r]=e.call(t,r,t[r]);return n},ready:function(t,e,n){if("function"!=typeof t||e||(e=t,t=void 0),t=t||document,e&&("loading"!==t.readyState?e():r.once(t,"DOMContentLoaded",function(){e();})),!n)return new Promise(function(e){r.ready(t,e,!0);})},Class:function(t){var e,n=["constructor","extends","abstract","static"].concat(Object.keys(r.classProps)),i=t.hasOwnProperty("constructor")?t.constructor:r.noop;2==arguments.length?(e=arguments[0],t=arguments[1]):(e=function(){if(this.constructor.__abstract&&this.constructor===e)throw new Error("Abstract classes cannot be directly instantiated.");e["super"]&&e["super"].apply(this,arguments),i.apply(this,arguments);},e["super"]=t["extends"]||null,e.prototype=r.extend(Object.create(e["super"]?e["super"].prototype:Object),{constructor:e}),e.prototype["super"]=e["super"]?e["super"].prototype:null,e.__abstract=!!t["abstract"]);var o=function(t){return this.hasOwnProperty(t)&&n.indexOf(t)===-1};if(t["static"]){r.extend(e,t["static"],o);for(var s in r.classProps)s in t["static"]&&r.classProps[s](e,t["static"][s]);}r.extend(e.prototype,t,o);for(var s in r.classProps)s in t&&r.classProps[s](e.prototype,t[s]);return e},classProps:{lazy:t(function(t,e,n){return Object.defineProperty(t,e,{get:function(){var t=n.call(this);return Object.defineProperty(this,e,{value:t,configurable:!0,enumerable:!0,writable:!0}),t},set:function(t){Object.defineProperty(this,e,{value:t,configurable:!0,enumerable:!0,writable:!0});},configurable:!0,enumerable:!0}),t}),live:t(function(t,e,n){return "function"===r.type(n)&&(n={set:n}),Object.defineProperty(t,e,{get:function(){var t=this["_"+e],r=n.get&&n.get.call(this,t);return void 0!==r?r:t},set:function(t){var r=this["_"+e],i=n.set&&n.set.call(this,t,r);this["_"+e]=void 0!==i?i:t;},configurable:n.configurable,enumerable:n.enumerable}),t})},include:function(){var t=arguments[arguments.length-1],e=2===arguments.length&&arguments[0],n=document.createElement("script");return e?Promise.resolve():new Promise(function(e,i){r.set(n,{async:!0,onload:function(){e(),n.parentNode&&n.parentNode.removeChild(n);},onerror:function(){i();},src:t,inside:document.head});})},fetch:function(t,n){if(!t)throw new TypeError("URL parameter is mandatory and cannot be "+t);var i=e({url:new URL(t,location),data:"",method:"GET",headers:{},xhr:new XMLHttpRequest},n);i.method=i.method.toUpperCase(),r.hooks.run("fetch-args",i),"GET"===i.method&&i.data&&(i.url.search+=i.data),document.body.setAttribute("data-loading",i.url),i.xhr.open(i.method,i.url.href,i.async!==!1,i.user,i.password);for(var o in n)if("upload"===o)i.xhr.upload&&"object"==typeof n[o]&&r.extend(i.xhr.upload,n[o]);else if(o in i.xhr)try{i.xhr[o]=n[o];}catch(s){self.console&&console.error(s);}var a=Object.keys(i.headers).map(function(t){return t.toLowerCase()});"GET"!==i.method&&a.indexOf("content-type")===-1&&i.xhr.setRequestHeader("Content-type","application/x-www-form-urlencoded");for(var c in i.headers)void 0!==i.headers[c]&&i.xhr.setRequestHeader(c,i.headers[c]);var u=new Promise(function(t,e){i.xhr.onload=function(){document.body.removeAttribute("data-loading"),0===i.xhr.status||i.xhr.status>=200&&i.xhr.status<300||304===i.xhr.status?t(i.xhr):e(r.extend(Error(i.xhr.statusText),{xhr:i.xhr,get status(){return this.xhr.status}}));},i.xhr.onerror=function(){document.body.removeAttribute("data-loading"),e(r.extend(Error("Network Error"),{xhr:i.xhr}));},i.xhr.ontimeout=function(){document.body.removeAttribute("data-loading"),e(r.extend(Error("Network Timeout"),{xhr:i.xhr}));},i.xhr.send("GET"===i.method?null:i.data);});return u.xhr=i.xhr,u},value:function(t){var e="string"!==r.type(t);return r.$(arguments).slice(+e).reduce(function(t,e){return t&&t[e]},e?t:self)}}),r.Hooks=new r.Class({add:function(t,e,n){if("string"==typeof arguments[0])(Array.isArray(t)?t:[t]).forEach(function(t){this[t]=this[t]||[],e&&this[t][n?"unshift":"push"](e);},this);else for(var t in arguments[0])this.add(t,arguments[0][t],arguments[1]);},run:function(t,e){this[t]=this[t]||[],this[t].forEach(function(t){t.call(e&&e.context?e.context:e,e);});}}),r.hooks=new r.Hooks;r.property;r.Element=function(t){this.subject=t,this.data={},this.bliss={};},r.Element.prototype={set:t(function(t,e){t in r.setProps?r.setProps[t].call(this,e):t in this?this[t]=e:this.setAttribute(t,e);},0),transition:function(t,e){return e=+e||400,new Promise(function(n,i){if("transition"in this.style){var o=r.extend({},this.style,/^transition(Duration|Property)$/);r.style(this,{transitionDuration:(e||400)+"ms",transitionProperty:Object.keys(t).join(", ")}),r.once(this,"transitionend",function(){clearTimeout(s),r.style(this,o),n(this);});var s=setTimeout(n,e+50,this);r.style(this,t);}else r.style(this,t),n(this);}.bind(this))},fire:function(t,e){var n=document.createEvent("HTMLEvents");return n.initEvent(t,!0,!0),this.dispatchEvent(r.extend(n,e))},bind:t(function(t,e){if(arguments.length>1&&("function"===r.type(e)||e.handleEvent)){var n=e;e="object"===r.type(arguments[2])?arguments[2]:{capture:!!arguments[2]},e.callback=n;}var i=r.listeners.get(this)||{};t.trim().split(/\s+/).forEach(function(t){if(t.indexOf(".")>-1){t=t.split(".");var n=t[1];t=t[0];}i[t]=i[t]||[],0===i[t].filter(function(t){return t.callback===e.callback&&t.capture==e.capture}).length&&i[t].push(r.extend({className:n},e)),r.original.addEventListener.call(this,t,e.callback,e);},this),r.listeners.set(this,i);},0),unbind:t(function(t,e){if(e&&("function"===r.type(e)||e.handleEvent)){var n=e;e=arguments[2];}"boolean"==r.type(e)&&(e={capture:e}),e=e||{},e.callback=e.callback||n;var i=r.listeners.get(this);(t||"").trim().split(/\s+/).forEach(function(t){if(t.indexOf(".")>-1){t=t.split(".");var n=t[1];t=t[0];}if(t&&e.callback)return r.original.removeEventListener.call(this,t,e.callback,e.capture);if(i)for(var o 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r.unbind(n,t,i),e.apply(n,arguments)};r.bind(this,t,i,{once:!0});},0),delegate:t(function(t,e,n){r.bind(this,t,function(t){t.target.closest(e)&&n.call(this,t);});},0,2),contents:function(t){(t||0===t)&&(Array.isArray(t)?t:[t]).forEach(function(t){var e=r.type(t);/^(string|number)$/.test(e)?t=document.createTextNode(t+""):"object"===e&&(t=r.create(t)),t instanceof Node&&this.appendChild(t);},this);},inside:function(t){t&&t.appendChild(this);},before:function(t){t&&t.parentNode.insertBefore(this,t);},after:function(t){t&&t.parentNode.insertBefore(this,t.nextSibling);},start:function(t){t&&t.insertBefore(this,t.firstChild);},around:function(t){t&&t.parentNode&&r.before(this,t),this.appendChild(t);}},r.Array=function(t){this.subject=t;},r.Array.prototype={all:function(t){var e=r.$(arguments).slice(1);return this[t].apply(this,e)}},r.add=t(function(t,e,n,i){n=r.extend({$:!0,element:!0,array:!0},n),"function"==r.type(e)&&(!n.element||t in r.Element.prototype&&i||(r.Element.prototype[t]=function(){return this.subject&&r.defined(e.apply(this.subject,arguments),this.subject)}),!n.array||t in r.Array.prototype&&i||(r.Array.prototype[t]=function(){var t=arguments;return this.subject.map(function(n){return n&&r.defined(e.apply(n,t),n)})}),n.$&&(r.sources[t]=r[t]=e,(n.array||n.element)&&(r[t]=function(){var e=[].slice.apply(arguments),i=e.shift(),o=n.array&&Array.isArray(i)?"Array":"Element";return r[o].prototype[t].apply({subject:i},e)})));},0),r.add(r.Array.prototype,{element:!1}),r.add(r.Element.prototype),r.add(r.setProps),r.add(r.classProps,{element:!1,array:!1});var i=document.createElement("_");r.add(r.extend({},HTMLElement.prototype,function(t){return "function"===r.type(i[t])}),null,!0);}());
  37.  
  38.   // eslint-disable-next-line
  39.   const $ = Bliss;
  40.   // eslint-disable-next-line
  41.   const $$ = Bliss.$;
  42.  
  43.   const GM_METHOD_MAP = {
  44.     GM_addStyle: 'addStyle',
  45.     GM_deleteValue: 'deleteValue',
  46.     GM_getResourceURL: 'getResourceUrl',
  47.     GM_getValue: 'getValue',
  48.     GM_listValues: 'listValues',
  49.     GM_notification: 'notification',
  50.     GM_openInTab: 'openInTab',
  51.     GM_registerMenuCommand: 'registerMenuCommand',
  52.     GM_setClipboard: 'setClipboard',
  53.     GM_setValue: 'setValue',
  54.     GM_xmlhttpRequest: 'xmlHttpRequest',
  55.     GM_getResourceText: 'getResourceText',
  56.   }
  57.  
  58.   function getGM4PolyfilledMethod(methodName) {
  59.     const gm4MethodName = GM_METHOD_MAP[methodName]
  60.  
  61.     if (GM !== undefined && gm4MethodName in GM) {
  62.       return GM[gm4MethodName]
  63.     } else if (methodName in window) {
  64.       return function (...arguments_) {
  65.         return new Promise((resolve, reject) => {
  66.           try {
  67.             // eslint-disable-next-line unicorn/no-null
  68.             resolve(window[methodName].apply(null, arguments_))
  69.           } catch (error) {
  70.             reject(error)
  71.           }
  72.         })
  73.       }
  74.     }
  75.  
  76.     return async function () {
  77.       throw new Error(`Method ${methodName} is not available. Missing @grant?`)
  78.     }
  79.   }
  80.  
  81.   const addStyle =
  82.     'GM_addStyle' in window
  83.       ? GM_addStyle // eslint-disable-line camelcase
  84.       : (css) => {
  85.           const head = document.querySelectorAll('head')[0]
  86.           const style = document.createElement('style')
  87.  
  88.           style.innerHTML = css
  89.           head.append(style)
  90.  
  91.           return style
  92.         }
  93.  
  94.   const request = getGM4PolyfilledMethod('GM_xmlhttpRequest')
  95.  
  96.   const store = {
  97.     get: getGM4PolyfilledMethod('GM_getValue'),
  98.  
  99.     set: getGM4PolyfilledMethod('GM_setValue'),
  100.  
  101.     async patch(name, value) {
  102.       const oldValue = await store.get(name)
  103.  
  104.       store.set(name, {
  105.         ...oldValue,
  106.         ...value,
  107.       })
  108.     },
  109.   }
  110.  
  111.   const registerMenuCommand = getGM4PolyfilledMethod('GM_registerMenuCommand')
  112.  
  113.   async function getURLFromPage(link, extractor) {
  114.     const html = await getPageHtml(link.url)
  115.  
  116.     const match = extractor.imageURLRegExp?.exec(html)
  117.  
  118.     let url
  119.  
  120.     if (match) {
  121.       url = match.groups ? match.groups.url : match[1]
  122.     }
  123.  
  124.     if (!url) {
  125.       console.warn(`[image-viewer] Unable to get URL from page ${link.url}`)
  126.     }
  127.  
  128.     return url
  129.   }
  130.  
  131.   async function getPageHtml(pageURL) {
  132.     const response = await request({ url: pageURL })
  133.  
  134.     return response.responseText
  135.   }
  136.  
  137.   const fastpic = {
  138.     name: 'FastPic',
  139.     linkRegExp: /^http.?:\/\/fastpic\.(?:ru|org)\/view/,
  140.     imageURLRegExp: /src="(?<url>http[^"]+)" class="image img-fluid"/,
  141.     getURL: getURLFromPage,
  142.   }
  143.  
  144.   const URL_PARTS_REGEXP = /i(\d+).+\.(ru|org)\/big(\/\d+\/\d+\/).+\/([^/]+)$/
  145.  
  146.   const fastpicDirect = {
  147.     name: 'FastPic (direct link)',
  148.     linkRegExp: /fastpic\.(?:ru|org)\/big/,
  149.  
  150.     async getURL(link) {
  151.       let hostLink = link.url
  152.  
  153.       if (hostLink.includes('?')) {
  154.         const urlObject = new URL(hostLink)
  155.         const parameters = new URLSearchParams(urlObject.search)
  156.  
  157.         for (const parameter of parameters.values()) {
  158.           if (fastpicDirect.linkRegExp.test(parameter)) {
  159.             hostLink = parameter
  160.             break
  161.           }
  162.         }
  163.       }
  164.  
  165.       const [, index, domain, date, filename] =
  166.         URL_PARTS_REGEXP.exec(hostLink) || []
  167.  
  168.       const url = `https://fastpic.${domain}/view/${index}${date}${filename}.html`
  169.  
  170.       return fastpic.getURL({ ...link, url }, fastpic)
  171.     },
  172.   }
  173.  
  174.   const imagebam = {
  175.     name: 'ImageBam',
  176.     linkRegExp: /^http:\/\/www\.imagebam\.com\/image/,
  177.     imageURLRegExp: /src="(?<url>[^"]+)".+class="main-image/,
  178.     getURL: getURLFromPage,
  179.   }
  180.  
  181.   const DATE_PATTERN = /(\d{4})\.(\d{2})\.(\d{2})/
  182.  
  183.   const imageban = {
  184.     name: 'ImageBan.ru',
  185.     linkRegExp: /\/\/imageban\.ru\/show/,
  186.  
  187.     async getURL(link) {
  188.       return link.thumbnailURL
  189.         .replace('thumbs', 'out')
  190.         .replace(DATE_PATTERN, '$1/$2/$3')
  191.     },
  192.   }
  193.  
  194.   const imagebanDirect = {
  195.     name: 'ImageBan.ru (direct link)',
  196.     linkRegExp: /imageban\.ru\/out/,
  197.  
  198.     async getURL(link) {
  199.       return link.url
  200.     },
  201.   }
  202.  
  203.   const imagetwist = {
  204.     name: 'ImageTwist',
  205.     linkRegExp: /imagetwist\.com/,
  206.     hotLinkingDisabled: true,
  207.  
  208.     async getURL(link) {
  209.       const imageName = link.url.split('/').pop()?.replace('.html', '')
  210.       const extension = imageName?.split('.').pop()
  211.       const imageUrl = link.thumbnailURL
  212.         .replace('/th/', '/i/')
  213.         .slice(0, -(extension?.length ?? 0))
  214.  
  215.       return `${imageUrl}${extension}/${imageName}`
  216.     },
  217.   }
  218.  
  219.   const HOST_REPLACE_REG_EXP = /(picturelol|picshick|imageshimage)/
  220.  
  221.   const imagetwistBased = {
  222.     name: 'ImageTwist based (legacy)',
  223.     hosts: ['Picturelol.com', 'PicShick.com', 'Imageshimage.com'],
  224.     linkRegExp: /^https?:\/\/(picturelol|picshick|imageshimage)\.com/,
  225.  
  226.     async getURL(link) {
  227.       const imageName = link.url.split('/').pop()
  228.       const imageUrl = link.thumbnailURL
  229.         .replace('/th/', '/i/')
  230.         .replace(HOST_REPLACE_REG_EXP, 'imagetwist')
  231.  
  232.       return `${imageUrl}/${imageName}`
  233.     },
  234.   }
  235.  
  236.   const imagevenueLegacy = {
  237.     name: 'ImageVenue.com',
  238.  
  239.     linkRegExp: /(imagevenue.com\/img.php|www.imagevenue.com\/\\w+$)/,
  240.     imageURLRegExp: /data-toggle="full">\W*<img src="(?<url>[^"]*)/im,
  241.  
  242.     getURL: getURLFromPage,
  243.   }
  244.  
  245.   const imgadult = {
  246.     name: 'ImgAdult.com',
  247.     linkRegExp: /^https:\/\/imgadult\.com/,
  248.  
  249.     async getURL(link) {
  250.       return link.thumbnailURL.replace('/small/', '/big/')
  251.     },
  252.   }
  253.  
  254.   const imgbb = {
  255.     name: 'imgbb.com',
  256.     linkRegExp: /^https:\/\/ibb\.co/,
  257.  
  258.     async getURL(link) {
  259.       return link.thumbnailURL.replace('//thumb', '//image')
  260.     },
  261.   }
  262.  
  263.   const imgbox = {
  264.     name: 'imgbox.com',
  265.     linkRegExp: /^https?:\/\/imgbox\.com/,
  266.  
  267.     async getURL(link) {
  268.       return link.thumbnailURL.replace('/thumbs', '/images').replace('_t', '_o')
  269.     },
  270.   }
  271.  
  272.   const imgbum = {
  273.     name: 'imgbum.net',
  274.     linkRegExp: /^http:\/\/imgbum\.net/,
  275.  
  276.     async getURL(link) {
  277.       return link.thumbnailURL.replace('-thumb', '')
  278.     },
  279.   }
  280.  
  281.   const imgchilibum = {
  282.     name: 'imgchilibum.ru',
  283.     linkRegExp: /^http:\/\/imgchilibum\.ru\/v/,
  284.  
  285.     async getURL(link) {
  286.       return link.thumbnailURL.replace('_s/', '_b/')
  287.     },
  288.   }
  289.  
  290.   const imgdrive = {
  291.     name: 'ImgDrive.net',
  292.     linkRegExp: /^https:\/\/imgdrive\.net/,
  293.  
  294.     async getURL(link) {
  295.       return link.thumbnailURL.replace('small', 'big')
  296.     },
  297.   }
  298.  
  299.   const imgtaxi = {
  300.     name: 'imgtaxi.com',
  301.     linkRegExp: /^https:\/\/imgtaxi\.com/,
  302.  
  303.     async getURL(link) {
  304.       return link.thumbnailURL
  305.         .replace('/small/', '/big/')
  306.         .replace('/small-medium/', '/big/')
  307.     },
  308.   }
  309.  
  310.   const imx = {
  311.     name: 'IMX.to',
  312.     linkRegExp: /^https:\/\/imx\.to/,
  313.  
  314.     async getURL(link) {
  315.       return link.thumbnailURL.replace('/imx', '/i.imx').replace('/u/t/', '/i/')
  316.     },
  317.   }
  318.  
  319.   const lostpic = {
  320.     name: 'Lostpic.net',
  321.     linkRegExp: /^http:\/\/lostpic\.net/,
  322.  
  323.     async getURL(link) {
  324.       return link.thumbnailURL.replace('.th', '').replace('http:', 'https:')
  325.     },
  326.   }
  327.  
  328.   const moneyPic = {
  329.     name: 'money-pic.ru',
  330.     linkRegExp: /^http:\/\/money-pic\.ru/,
  331.  
  332.     async getURL(link) {
  333.       return link.thumbnailURL.replace('-thumb', '')
  334.     },
  335.   }
  336.  
  337.   const nikapic = {
  338.     name: 'nikapic.ru',
  339.     linkRegExp: /^http:\/\/nikapic\.ru/,
  340.  
  341.     async getURL(link) {
  342.       return link.thumbnailURL.replace('/small/', '/big/')
  343.     },
  344.   }
  345.  
  346.   const picage = {
  347.     name: 'picage.ru',
  348.     linkRegExp: /^http:\/\/picage\.ru/,
  349.  
  350.     async getURL(link) {
  351.       return link.thumbnailURL
  352.         .replace('picage', 'pic4you')
  353.         .replace('-thumb', '')
  354.     },
  355.   }
  356.  
  357.   const piccash = {
  358.     name: 'PicCash.net',
  359.     linkRegExp: /^http:\/\/piccash\.net\//,
  360.  
  361.     async getURL(link) {
  362.       return link.thumbnailURL.replace('_thumb', '_full').replace('-thumb', '')
  363.     },
  364.   }
  365.  
  366.   const picforall = {
  367.     name: 'PicForAll.ru',
  368.     hosts: [
  369.       'freescreens.ru',
  370.       'imgclick.ru',
  371.       'picclick.ru',
  372.       'payforpic.ru',
  373.       'picforall.ru',
  374.       'imgbase.ru',
  375.     ],
  376.     linkRegExp:
  377.       /^http:\/\/(freescreens\.ru|imgclick\.ru|picclick\.ru|payforpic\.ru|picforall\.ru)/,
  378.  
  379.     async getURL(link) {
  380.       return link.thumbnailURL.replace('-thumb', '')
  381.     },
  382.   }
  383.  
  384.   const HOST_REPLACE_REG_EX =
  385.     /(iceimg\.net|pixsense\.net|vestimage\.site|chaosimg\.site)/
  386.  
  387.   const pixsense = {
  388.     name: 'PixSense',
  389.     hosts: [
  390.       'www.iceimg.net',
  391.       'www.pixsense.net',
  392.       'www.vestimage.site',
  393.       'www.chaosimg.site',
  394.     ],
  395.     linkRegExp:
  396.       /^http:\/\/www\.(iceimg\.net|pixsense\.net|vestimage\.site|chaosimg\.site)/,
  397.  
  398.     async getURL(link) {
  399.       return link.thumbnailURL
  400.         .replace(HOST_REPLACE_REG_EX, 'fortstore.net')
  401.         .replace('small-', '')
  402.         .replace('/small/', '/big/')
  403.     },
  404.   }
  405.  
  406.   const radikal = {
  407.     name: 'Radikal.ru',
  408.     linkRegExp: /https?:\/\/.\.radikal\.ru\//,
  409.  
  410.     async getURL(link) {
  411.       return link.url
  412.     },
  413.   }
  414.  
  415.   const radikalLegacy = {
  416.     name: 'Radikal.ru (legacy)',
  417.     linkRegExp: /^http:\/\/radikal\.ru\//,
  418.     imageURLRegExp: /id="imgFullSize" src="(?<url>[^"]+)"/,
  419.     getURL: getURLFromPage,
  420.   }
  421.  
  422.   const stuffed = {
  423.     name: 'stuffed.ru',
  424.     linkRegExp: /^http:\/\/stuffed\.ru/,
  425.  
  426.     async getURL(link) {
  427.       return link.thumbnailURL.replace('-thumb', '')
  428.     },
  429.   }
  430.  
  431.   const turboimagehost = {
  432.     name: 'TurboImageHost',
  433.     linkRegExp: /^https:\/\/www\.turboimagehost\.com\/p/,
  434.     imageURLRegExp: /property="og:image" content="([^"]*)"/,
  435.     getURL: getURLFromPage,
  436.   }
  437.  
  438.   const vfl = {
  439.     name: 'VFL.ru',
  440.     linkRegExp: /^http:\/\/vfl\.ru/,
  441.  
  442.     async getURL(link) {
  443.       return link.thumbnailURL.replace('_s', '')
  444.     },
  445.   }
  446.  
  447.   const xxxscreens = {
  448.     name: 'XXXScreens.com',
  449.     linkRegExp: /^http:\/\/xxxscreens\.com/,
  450.  
  451.     async getURL(link) {
  452.       return link.thumbnailURL.replace('small/', 'big/')
  453.     },
  454.   }
  455.  
  456.   const hostExtractors = /* #__PURE__ */ Object.freeze({
  457.     __proto__: null,
  458.     fastpic,
  459.     fastpicDirect,
  460.     imagebam,
  461.     imageban,
  462.     imagebanDirect,
  463.     imagetwist,
  464.     imagetwistBased,
  465.     imagevenueLegacy,
  466.     imgadult,
  467.     imgbb,
  468.     imgbox,
  469.     imgbum,
  470.     imgchilibum,
  471.     imgdrive,
  472.     imgtaxi,
  473.     imx,
  474.     lostpic,
  475.     moneyPic,
  476.     nikapic,
  477.     picage,
  478.     piccash,
  479.     picforall,
  480.     pixsense,
  481.     radikal,
  482.     radikalLegacy,
  483.     stuffed,
  484.     turboimagehost,
  485.     vfl,
  486.     xxxscreens,
  487.   })
  488.  
  489.   let extractorsActive = []
  490.  
  491.   const extractors = Object.values(hostExtractors).filter(Boolean)
  492.  
  493.   const extractorsByName = extractors.reduce((result, extractor) => {
  494.     result[extractor.name] = extractor
  495.  
  496.     return result
  497.   }, {})
  498.  
  499.   const urlExtractor = {
  500.     getImageHostsMetadata() {
  501.       const result = extractors.map(({ name, hosts }) => ({
  502.         name,
  503.         description: hosts ? hosts.join(', ') : '',
  504.       }))
  505.  
  506.       return sortCaseInsensitive(result, ({ name }) => name)
  507.     },
  508.  
  509.     getImageURL(link) {
  510.       const extractor = extractorsByName[link.host]
  511.  
  512.       return extractor.getURL(link, extractor)
  513.     },
  514.  
  515.     isHotLinkingDisabled(host) {
  516.       return extractorsByName[host].hotLinkingDisabled ?? false
  517.     },
  518.  
  519.     getHostNameMatcher(enabledHosts) {
  520.       extractorsActive = extractors.filter((extractor) =>
  521.         enabledHosts.includes(extractor.name)
  522.       )
  523.  
  524.       let previousExtractor
  525.  
  526.       return (url) => {
  527.         if (previousExtractor && previousExtractor.linkRegExp.test(url)) {
  528.           return previousExtractor.name
  529.         }
  530.  
  531.         const extractor = extractorsActive.find((extractor) =>
  532.           extractor.linkRegExp.test(url)
  533.         )
  534.  
  535.         if (extractor) {
  536.           previousExtractor = extractor
  537.  
  538.           return extractor.name
  539.         }
  540.       }
  541.     },
  542.   }
  543.  
  544.   function sortCaseInsensitive(items, getValue) {
  545.     return items
  546.       .map((value, index) => ({ index, value: getValue(value).toLowerCase() }))
  547.       .sort((a, b) => {
  548.         if (a.value > b.value) {
  549.           return 1
  550.         }
  551.         if (a.value < b.value) {
  552.           return -1
  553.         }
  554.  
  555.         return 0
  556.       })
  557.       .map((m) => items[m.index])
  558.   }
  559.  
  560.   const CLASSES$1 = {
  561.     open: 'iv-config-form--open',
  562.   }
  563.  
  564.   let configMenu
  565.   const currentHost = unsafeWindow.location.host
  566.  
  567.   async function initHostConfig() {
  568.     const config = await getHostConfig()
  569.  
  570.     await registerMenuCommand('Settings', () => showMenu(config))
  571.  
  572.     return config
  573.   }
  574.  
  575.   async function getHostConfig() {
  576.     const hosts = urlExtractor.getImageHostsMetadata()
  577.  
  578.     const storedConfig = await store.get(currentHost, { hosts: {} })
  579.     const enabledHosts = []
  580.  
  581.     for (const host of hosts) {
  582.       const id = host.name
  583.       const isEnabled = id in storedConfig.hosts ? storedConfig.hosts[id] : true
  584.  
  585.       host.isEnabled = isEnabled
  586.       storedConfig.hosts[id] = isEnabled
  587.  
  588.       if (isEnabled) {
  589.         enabledHosts.push(id)
  590.       }
  591.     }
  592.  
  593.     storedConfig.hosts = hosts.reduce((result, host) => {
  594.       result[host.name] = host.isEnabled
  595.  
  596.       return result
  597.     }, {})
  598.  
  599.     return {
  600.       hosts,
  601.       storedConfig,
  602.       enabledHosts,
  603.     }
  604.   }
  605.  
  606.   function showMenu(config) {
  607.     createMenuElement(config).classList.add(CLASSES$1.open)
  608.   }
  609.  
  610.   function createMenuElement(config) {
  611.     if (configMenu) {
  612.       return configMenu
  613.     }
  614.  
  615.     const rows = config.hosts.map((host) => createConfigMenuRow(host))
  616.  
  617.     configMenu = $.create('div', {
  618.       id: 'iv-config-form',
  619.       className: 'iv-config-form',
  620.       contents: [
  621.         createMenuHeader(),
  622.         {
  623.           tag: 'div',
  624.           className: 'iv-config-form__options',
  625.           contents: rows,
  626.         },
  627.       ],
  628.       delegate: {
  629.         change: {
  630.           '.js-iv-config-checkbox': ({ target: { value, checked } }) =>
  631.             updateHostConfig(config.storedConfig, value, checked),
  632.         },
  633.       },
  634.     })
  635.  
  636.     document.body.append(configMenu)
  637.  
  638.     return configMenu
  639.   }
  640.  
  641.   function createConfigMenuRow(host) {
  642.     return $.create('label', {
  643.       className: 'iv-config-form__label',
  644.       title: host.description,
  645.       contents: [
  646.         {
  647.           tag: 'input',
  648.           type: 'checkbox',
  649.           className: 'iv-config-form__checkbox js-iv-config-checkbox',
  650.           checked: host.isEnabled,
  651.           value: host.name,
  652.         },
  653.         host.name,
  654.       ],
  655.     })
  656.   }
  657.  
  658.   function createMenuHeader() {
  659.     const closeButton = $.create('a', {
  660.       href: '#',
  661.       title: 'Close',
  662.       className: `iv-icon-button iv-icon-button--small iv-icon iv-icon--type-close`,
  663.       events: {
  664.         click: (event) => {
  665.           event.preventDefault()
  666.           configMenu.classList.remove(CLASSES$1.open)
  667.         },
  668.       },
  669.     })
  670.  
  671.     return {
  672.       tag: 'div',
  673.       className: 'iv-config-form__header',
  674.       contents: [
  675.         {
  676.           tag: 'span',
  677.           className: 'iv-config-form__header-title',
  678.           contents: `Settings for ${currentHost}`,
  679.         },
  680.         closeButton,
  681.       ],
  682.     }
  683.   }
  684.  
  685.   function updateHostConfig(config, hostName, isEnabled) {
  686.     config.hosts[hostName] = isEnabled
  687.     store.set(currentHost, config)
  688.   }
  689.  
  690.   const css_248z =
  691.     "@keyframes spin{0%{transform:translate(-50%,-50%) rotate(0deg)}to{transform:translate(-50%,-50%) rotate(1turn)}}.iv-icon{position:relative}.iv-icon:after,.iv-image-link img:after{background-position:50%;background-repeat:no-repeat;background-size:contain;content:\"\";height:100%;left:50%;position:absolute;top:50%;transform:translate(-50%,-50%);width:100%;z-index:2}.iv-icon--hover:after{opacity:0;transition:opacity .35s ease}.iv-icon--hover:hover:after{opacity:1}.iv-icon--size-button:after{height:50px;width:50px}.iv-icon--type-loading:after{animation:spin 1s linear infinite;background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='%23fff'%3E%3Cpath d='M12 4V2A10 10 0 0 0 2 12h2a8 8 0 0 1 8-8Z'/%3E%3C/svg%3E\")!important;opacity:1}.iv-icon--type-zoom:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' width='24' fill='%23fff'%3E%3Cpath d='M0 0h24v24H0V0z' fill='none'/%3E%3Cpath d='M15.5 14h-.79l-.28-.27A6.471 6.471 0 0 0 16 9.5 6.5 6.5 0 1 0 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14zm.5-7H9v2H7v1h2v2h1v-2h2V9h-2z'/%3E%3C/svg%3E\")}.iv-icon--type-next:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' width='24' fill='%23fff'%3E%3Cpath d='M0 0h24v24H0V0z' fill='none'/%3E%3Cpath d='M10.02 6 8.61 7.41 13.19 12l-4.58 4.59L10.02 18l6-6-6-6z'/%3E%3C/svg%3E\")}.iv-icon--type-previous:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' width='24' fill='%23fff'%3E%3Cpath d='M0 0h24v24H0V0z' fill='none'/%3E%3Cpath d='M15.61 7.41 14.2 6l-6 6 6 6 1.41-1.41L11.03 12l4.58-4.59z'/%3E%3C/svg%3E\")}.iv-icon--type-close:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' width='24' fill='%23fff'%3E%3Cpath d='M0 0h24v24H0V0z' fill='none'/%3E%3Cpath d='M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41z'/%3E%3C/svg%3E\")}.iv-icon--type-expand:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' width='24' fill='%23fff'%3E%3Cpath d='M0 0h24v24H0V0z' fill='none'/%3E%3Cpath d='M7 14H5v5h5v-2H7v-3zm-2-4h2V7h3V5H5v5zm12 7h-3v2h5v-5h-2v3zM14 5v2h3v3h2V5h-5z'/%3E%3C/svg%3E\")}.iv-icon--type-shrink:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' width='24' fill='%23fff'%3E%3Cpath d='M0 0h24v24H0V0z' fill='none'/%3E%3Cpath d='M5 16h3v3h2v-5H5v2zm3-8H5v2h5V5H8v3zm6 11h2v-3h3v-2h-5v5zm2-11V5h-2v5h5V8h-3z'/%3E%3C/svg%3E\")}.iv-icon--type-image-broken:after,.iv-image-link img:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='%23fff'%3E%3Cpath d='M21 5v6.59l-3-3.01-4 4.01-4-4-4 4-3-3.01V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2m-3 6.42 3 3.01V19a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-6.58l3 2.99 4-4 4 4'/%3E%3C/svg%3E\")}.iv-image-link{border:1px solid rgba(0,0,0,.2);box-shadow:1px 1px 3px rgba(0,0,0,.5);display:inline-flex;margin:3px;min-height:50px;min-width:50px;padding:4px;vertical-align:top}.iv-image-link img{margin:0}.iv-image-link>:not(img){align-items:center;display:flex;justify-content:center;width:100%}.iv-image-link:before{background-color:rgba(0,0,0,.5);bottom:4px;content:\"\";left:4px;opacity:0;position:absolute;right:4px;top:4px;transition:opacity .35s ease;z-index:1}.iv-image-link.iv-icon--type-loading:before,.iv-image-link:hover:before{opacity:1}.iv-image-link img:after,.iv-image-link img:before{content:\"\";position:absolute}.iv-image-link img:before{background-color:rgba(0,0,0,.2);height:100%;left:0;top:0;width:100%}.iv-image-link img:after{height:35px;width:35px;z-index:0}.iv-image-view{background-color:rgba(0,0,0,.8);color:#fff;display:none;flex-direction:column;height:0;opacity:0;transition:opacity .35s ease-out;user-select:none}.iv-image-view--open body,html.iv-image-view--open{overflow:hidden}.iv-image-view--open .iv-image-view{bottom:0;display:flex;height:auto;left:0;opacity:1;position:fixed;right:0;top:0;z-index:3}.iv-image-view--single .single-hide{visibility:hidden}.iv-image-view__footer,.iv-image-view__header{background-color:rgba(0,0,0,.8);display:flex}.iv-image-view__footer-wrapper,.iv-image-view__header-wrapper{z-index:2}.iv-image-view__header-wrapper{box-shadow:0 3px 7px rgba(0,0,0,.7)}.iv-image-view__footer-wrapper{box-shadow:0 -3px 7px rgba(0,0,0,.7)}.iv-image-view__header{justify-content:space-between}.iv-image-view__footer{justify-content:center}.iv-image-view__body{display:flex;height:100%;overflow:auto;position:relative}.iv-image-view__body::-webkit-scrollbar{width:20px}.iv-image-view__body::-webkit-scrollbar-thumb{background-color:rgba(0,0,0,.8)}.iv-image-view__body::-webkit-scrollbar-track{background-color:hsla(0,0%,100%,.8)}.iv-thumbnail-wrapper{display:flex;height:100%;left:0;position:absolute;top:0;width:100%;z-index:0}.iv-image-view__number{align-items:center;display:flex;font-size:18px;padding:0 40px}.iv-image-view__backdrop{height:100%;left:0;position:fixed;top:0;width:100%;z-index:1}.iv-image,.iv-thumbnail{margin:auto;max-height:100%;max-width:100%;object-fit:contain}.iv-image{opacity:1;transition:opacity .35s ease-out;z-index:2}.iv-thumbnail{filter:blur(5px)}.iv-icon--type-error .iv-image,.iv-image-view__image--loading .iv-image,.iv-image-view__image--thumbnail .iv-image{opacity:0}.iv-image-view__image--thumbnail .iv-thumbnail-wrapper{z-index:2}.iv-image-view--full-height .iv-image,.iv-image-view--full-height .iv-thumbnail{cursor:grab;max-height:none}.iv-image-view--full-height .iv-image--grabbing{cursor:grabbing}.iv-icon-button{height:50px;transition:all .35s ease-out;width:50px}.iv-icon-button--small{height:25px;width:25px}.iv-icon-button+.iv-icon-button{margin-left:5px}.iv-icon-button:hover{background-color:hsla(0,0%,100%,.1)}.iv-icon-button--active,.iv-icon-button:active{background-color:hsla(0,0%,100%,.2)}.iv-config-form{background-color:rgba(0,0,0,.85);color:#fff;display:none;flex-direction:column;height:50%;left:10px;max-width:500px;padding:10px;top:10px;width:50%}.iv-config-form--open{display:flex;position:fixed;z-index:3}.iv-config-form__header{align-items:center;display:flex;padding:10px}.iv-config-form__header-title{flex-grow:1}.iv-config-form__options{display:flex;flex-flow:column wrap;flex-grow:1;overflow:auto}.iv-config-form__label{align-items:center;display:flex;flex:0 0 auto;margin:0;padding:10px;transition:all .35s ease-out}.iv-config-form__label:hover{background-color:hsla(0,0%,100%,.15)}.iv-config-form__checkbox{margin:0 5px 0 0!important}"
  692.  
  693.   const CLASSES = {
  694.     imageLink: 'js-image-link',
  695.     imageLinkZoom: 'iv-icon--type-zoom',
  696.     imageLinkHover: 'iv-icon--hover',
  697.     brokenImage: 'iv-icon--type-image-broken',
  698.     loadingIcon: 'iv-icon--type-loading',
  699.     loading: 'iv-image-view__image--loading',
  700.     thumbnail: 'iv-image-view__image--thumbnail',
  701.     open: 'iv-image-view--open',
  702.     single: 'iv-image-view--single',
  703.     fullHeight: 'iv-image-view--full-height',
  704.     iconExpand: 'iv-icon--type-expand',
  705.     iconShrink: 'iv-icon--type-shrink',
  706.     grabbing: 'iv-image--grabbing',
  707.     buttonActive: 'iv-icon-button--active',
  708.   }
  709.  
  710.   const SELECTORS = {
  711.     imageLink: `.${CLASSES.imageLink}`,
  712.   }
  713.  
  714.   const EMPTY_SRC =
  715.     'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEAAAAALAAAAAABAAEAAAI='
  716.  
  717.   const TRANSITION_DURATION = 350
  718.  
  719.   function initViewer(enabledHosts) {
  720.     addStyle(css_248z)
  721.  
  722.     const container = $('body')
  723.  
  724.     const linkClasses = [
  725.       CLASSES.imageLink,
  726.       'iv-image-link',
  727.       'iv-icon',
  728.       'iv-icon--hover',
  729.       CLASSES.imageLinkZoom,
  730.       'iv-icon--size-button',
  731.     ]
  732.  
  733.     const getHostName = urlExtractor.getHostNameMatcher(enabledHosts)
  734.  
  735.     const imagesWithLinks = $$('a > img, a > var', container)
  736.       .map((img) => ({
  737.         link: img.parentElement,
  738.         thumbnailUrl: img.src || img.title,
  739.       }))
  740.       .filter(({ link }) => link.href)
  741.  
  742.     for (const { link, thumbnailUrl } of imagesWithLinks) {
  743.       const hostName = getHostName(link.href)
  744.  
  745.       if (hostName) {
  746.         link.dataset.ivHost = hostName
  747.         link.dataset.ivThumbnail = thumbnailUrl
  748.         link.classList.add(...linkClasses)
  749.       }
  750.     }
  751.  
  752.     $.delegate(container, 'click', SELECTORS.imageLink, events.linkClick)
  753.   }
  754.  
  755.   const elements = {
  756.     container: undefined,
  757.     image: undefined,
  758.     imageThumbnail: undefined,
  759.     imageContainer: undefined,
  760.     imageNumber: undefined,
  761.     imageTotal: undefined,
  762.     buttons: {
  763.       next: undefined,
  764.       previous: undefined,
  765.       close: undefined,
  766.       toggleFullHeight: undefined,
  767.     },
  768.   }
  769.  
  770.   const state = {
  771.     isFirstClick: true,
  772.     isOpened: false,
  773.     currentLink: undefined,
  774.     linksSet: [],
  775.     isSingle: false,
  776.     getCurrentLinkIndex() {
  777.       return this.currentLink === undefined
  778.         ? -1
  779.         : this.linksSet.indexOf(this.currentLink)
  780.     },
  781.     getLastLinkIndex() {
  782.       return this.linksSet.length - 1
  783.     },
  784.     dragPosition: 0,
  785.     dragging: false,
  786.   }
  787.  
  788.   const image = {
  789.     async show(link) {
  790.       const container = elements.container
  791.       const img = elements.image
  792.       const thumbnail = elements.imageThumbnail
  793.  
  794.       state.currentLink = link
  795.  
  796.       if (state.isSingle) {
  797.         container.classList.add(CLASSES.single)
  798.       } else {
  799.         container.classList.remove(CLASSES.single)
  800.         elements.imageNumber.textContent = (
  801.           state.getCurrentLinkIndex() + 1
  802.         ).toString()
  803.       }
  804.  
  805.       if (!state.isOpened) {
  806.         document.documentElement.classList.add(CLASSES.open)
  807.         state.isOpened = true
  808.       }
  809.  
  810.       img.src = EMPTY_SRC
  811.  
  812.       if (link.classList.contains(CLASSES.brokenImage)) {
  813.         container.classList.add(CLASSES.brokenImage)
  814.  
  815.         return
  816.       }
  817.  
  818.       container.classList.remove(CLASSES.brokenImage)
  819.  
  820.       container.classList.add(CLASSES.loading, CLASSES.loadingIcon)
  821.  
  822.       const isSizeKnown = !!link.dataset.ivWidth
  823.       const thumbnailURL = link.dataset.ivThumbnail
  824.       const imageHost = link.dataset.ivHost
  825.  
  826.       if (!thumbnailURL || !imageHost) {
  827.         throw new Error(
  828.           '[image-viewer] Either thumbnail URL or host is not set'
  829.         )
  830.       }
  831.  
  832.       if (isSizeKnown) {
  833.         thumbnail.width = Number(link.dataset.ivWidth)
  834.         thumbnail.src = thumbnailURL
  835.  
  836.         container.classList.add(CLASSES.thumbnail)
  837.       }
  838.  
  839.       let imageURL = link.dataset.ivImgUrl
  840.  
  841.       if (!imageURL) {
  842.         imageURL = await urlExtractor.getImageURL({
  843.           url: link.href,
  844.           thumbnailURL,
  845.           host: imageHost,
  846.         })
  847.  
  848.         if (!imageURL) {
  849.           image.markAsBroken(link)
  850.  
  851.           return
  852.         }
  853.  
  854.         link.dataset.ivImgUrl = imageURL
  855.       }
  856.  
  857.       try {
  858.         if (urlExtractor.isHotLinkingDisabled(imageHost)) {
  859.           img.src = await image.loadAsBlob(imageURL)
  860.         } else {
  861.           await image.preload(
  862.             imageURL,
  863.             isSizeKnown ? undefined : image.setThumbnailSize
  864.           )
  865.  
  866.           img.src = imageURL
  867.         }
  868.  
  869.         container.classList.remove(
  870.           CLASSES.thumbnail,
  871.           CLASSES.loading,
  872.           CLASSES.loadingIcon
  873.         )
  874.  
  875.         setTimeout(image.hideThumbnail, TRANSITION_DURATION)
  876.       } catch {
  877.         link.classList.remove(CLASSES.imageLink)
  878.         image.markAsBroken(link)
  879.  
  880.         $.attributes(link, { target: '_blank' })
  881.       }
  882.     },
  883.  
  884.     preload(url, onSizeGet) {
  885.       return new Promise((resolve, reject) => {
  886.         const imageObject = new Image()
  887.  
  888.         imageObject.addEventListener('load', () => resolve())
  889.         imageObject.addEventListener('error', reject)
  890.  
  891.         imageObject.src = url
  892.  
  893.         if (onSizeGet) {
  894.           image.getSize(imageObject).then(onSizeGet)
  895.         }
  896.       })
  897.     },
  898.  
  899.     async loadAsBlob(url) {
  900.       const response = await request({
  901.         url,
  902.         headers: { referer: url, origin: url },
  903.         responseType: 'blob',
  904.       })
  905.  
  906.       return window.URL.createObjectURL(response.response)
  907.     },
  908.  
  909.     getSize(img) {
  910.       return new Promise((resolve) => {
  911.         const intervalId = setInterval(() => {
  912.           if (img.naturalWidth) {
  913.             clearInterval(intervalId)
  914.             resolve({ width: img.naturalWidth, isLoaded: img.complete })
  915.           }
  916.         }, 10)
  917.       })
  918.     },
  919.  
  920.     setThumbnailSize({ width, isLoaded }) {
  921.       if (!state.currentLink) {
  922.         throw new Error('[image-viewer] currentLink is not set')
  923.       }
  924.  
  925.       const thumbnailURL = state.currentLink.dataset.ivThumbnail
  926.  
  927.       if (!thumbnailURL) {
  928.         throw new Error('[image-viewer] Thumbnail URL is not set')
  929.       }
  930.  
  931.       elements.imageThumbnail.width = width
  932.       elements.imageThumbnail.src = thumbnailURL
  933.  
  934.       if (!isLoaded) {
  935.         elements.container.classList.add(CLASSES.thumbnail)
  936.       }
  937.  
  938.       state.currentLink.dataset.ivWidth = width.toString()
  939.     },
  940.  
  941.     hideThumbnail() {
  942.       elements.imageThumbnail.removeAttribute('width')
  943.       elements.imageThumbnail.src = EMPTY_SRC
  944.     },
  945.  
  946.     hide() {
  947.       document.documentElement.classList.remove(CLASSES.open)
  948.       state.isOpened = false
  949.       state.currentLink = undefined
  950.       elements.image.src = EMPTY_SRC
  951.       events.keyboard.unbind()
  952.     },
  953.  
  954.     next() {
  955.       const currentIndex = state.getCurrentLinkIndex()
  956.       const newIndex =
  957.         currentIndex < state.getLastLinkIndex() ? currentIndex + 1 : 0
  958.  
  959.       image.show(state.linksSet[newIndex])
  960.     },
  961.  
  962.     previous() {
  963.       const currentIndex = state.getCurrentLinkIndex()
  964.       const newIndex =
  965.         currentIndex === 0 ? state.getLastLinkIndex() : currentIndex - 1
  966.  
  967.       image.show(state.linksSet[newIndex])
  968.     },
  969.  
  970.     toggleFullHeight() {
  971.       elements.container.classList.toggle(CLASSES.fullHeight)
  972.       elements.buttons.toggleFullHeight.classList.toggle(CLASSES.iconExpand)
  973.       elements.buttons.toggleFullHeight.classList.toggle(CLASSES.iconShrink)
  974.     },
  975.  
  976.     markAsBroken(link) {
  977.       elements.container.classList.replace(
  978.         CLASSES.loadingIcon,
  979.         CLASSES.brokenImage
  980.       )
  981.       elements.container.classList.remove(CLASSES.loading)
  982.       link.classList.replace(CLASSES.imageLinkZoom, CLASSES.brokenImage)
  983.     },
  984.   }
  985.  
  986.   const events = {
  987.     linkClick(event) {
  988.       event.preventDefault()
  989.  
  990.       if (state.isFirstClick) {
  991.         create.viewContainer()
  992.         state.isFirstClick = false
  993.       }
  994.  
  995.       const link = event.target
  996.  
  997.       state.linksSet = $$(SELECTORS.imageLink, link.parentElement ?? undefined)
  998.       state.isSingle = state.linksSet.length === 1
  999.  
  1000.       if (!state.isSingle) {
  1001.         elements.imageTotal.textContent = state.linksSet.length.toString()
  1002.       }
  1003.  
  1004.       events.keyboard.bind()
  1005.  
  1006.       image.show(link)
  1007.     },
  1008.  
  1009.     keyboard: {
  1010.       bind() {
  1011.         document.addEventListener('keydown', events.keyboard.handler, true)
  1012.       },
  1013.       unbind() {
  1014.         document.removeEventListener('keydown', events.keyboard.handler, true)
  1015.       },
  1016.  
  1017.       handler(event) {
  1018.         if (event.defaultPrevented || event.repeat) {
  1019.           return
  1020.         }
  1021.  
  1022.         switch (event.key) {
  1023.           case 'ArrowRight':
  1024.             image.next()
  1025.             break
  1026.  
  1027.           case 'ArrowLeft':
  1028.             image.previous()
  1029.             break
  1030.  
  1031.           case 'Escape':
  1032.             image.hide()
  1033.             break
  1034.  
  1035.           case ' ':
  1036.             image.toggleFullHeight()
  1037.             break
  1038.  
  1039.           default:
  1040.             return
  1041.         }
  1042.  
  1043.         event.preventDefault()
  1044.       },
  1045.     },
  1046.  
  1047.     mouse(event) {
  1048.       switch (event.type) {
  1049.         case 'mousedown':
  1050.           state.dragging = true
  1051.           state.dragPosition = event.clientY
  1052.           elements.image.classList.add(CLASSES.grabbing)
  1053.           break
  1054.  
  1055.         case 'mousemove':
  1056.           if (state.dragging) {
  1057.             elements.imageContainer.scrollTop -=
  1058.               event.clientY - state.dragPosition
  1059.             state.dragPosition = event.clientY
  1060.           }
  1061.           break
  1062.  
  1063.         case 'mouseup':
  1064.  
  1065.         // fall through
  1066.         case 'mouseout':
  1067.           state.dragging = false
  1068.           elements.image.classList.remove(CLASSES.grabbing)
  1069.           break
  1070.  
  1071.         case 'dblclick':
  1072.           image.toggleFullHeight()
  1073.           break
  1074.  
  1075.         default:
  1076.           return
  1077.       }
  1078.  
  1079.       event.preventDefault()
  1080.     },
  1081.   }
  1082.  
  1083.   const create = {
  1084.     viewContainer() {
  1085.       elements.container = $.create('div', {
  1086.         className: 'iv-image-view iv-icon iv-icon--size-button',
  1087.         contents: [
  1088.           create.viewContainerHeader(),
  1089.           create.viewContainerBody(),
  1090.           create.viewContainerFooter(),
  1091.         ],
  1092.       })
  1093.  
  1094.       document.body.append(elements.container)
  1095.     },
  1096.  
  1097.     viewContainerBody() {
  1098.       elements.image = $.create('img', {
  1099.         className: 'iv-image',
  1100.         events: {
  1101.           'mousedown mouseup mousemove mouseout dblclick': events.mouse,
  1102.         },
  1103.       })
  1104.  
  1105.       elements.imageThumbnail = $.create('img', {
  1106.         className: 'iv-thumbnail',
  1107.       })
  1108.  
  1109.       elements.imageContainer = $.create('div', {
  1110.         className: 'iv-image-view__body',
  1111.         contents: [
  1112.           {
  1113.             tag: 'div',
  1114.             className: 'iv-image-view__backdrop',
  1115.             events: {
  1116.               click: image.hide,
  1117.             },
  1118.           },
  1119.           {
  1120.             tag: 'div',
  1121.             className: 'iv-thumbnail-wrapper',
  1122.             contents: elements.imageThumbnail,
  1123.           },
  1124.           elements.image,
  1125.         ],
  1126.       })
  1127.  
  1128.       return elements.imageContainer
  1129.     },
  1130.  
  1131.     viewContainerHeader() {
  1132.       elements.imageNumber = document.createElement('span')
  1133.       elements.imageTotal = document.createElement('span')
  1134.       const imageNumber = $.create('div', {
  1135.         className: 'iv-image-view__number single-hide',
  1136.         contents: [elements.imageNumber, '/', elements.imageTotal],
  1137.       })
  1138.  
  1139.       elements.buttons.close = create.toolbarButton(
  1140.         'Close (Esc)',
  1141.         'close',
  1142.         image.hide
  1143.       )
  1144.  
  1145.       return {
  1146.         tag: 'div',
  1147.         className: 'iv-image-view__header-wrapper',
  1148.         contents: {
  1149.           tag: 'div',
  1150.           className: 'iv-image-view__header',
  1151.           contents: [imageNumber, elements.buttons.close],
  1152.         },
  1153.       }
  1154.     },
  1155.  
  1156.     viewContainerFooter() {
  1157.       const buttons = elements.buttons
  1158.  
  1159.       buttons.previous = create.toolbarButton(
  1160.         'Previous (←)',
  1161.         'previous',
  1162.         image.previous,
  1163.         'single-hide'
  1164.       )
  1165.       buttons.toggleFullHeight = create.toolbarButton(
  1166.         'Toggle full height (Space)',
  1167.         'expand',
  1168.         image.toggleFullHeight
  1169.       )
  1170.       buttons.next = create.toolbarButton(
  1171.         'Next (→)',
  1172.         'next',
  1173.         image.next,
  1174.         'single-hide'
  1175.       )
  1176.  
  1177.       return {
  1178.         tag: 'div',
  1179.         className: 'iv-image-view__footer-wrapper',
  1180.         contents: {
  1181.           tag: 'div',
  1182.           className: 'iv-image-view__footer',
  1183.           contents: [buttons.previous, buttons.toggleFullHeight, buttons.next],
  1184.         },
  1185.       }
  1186.     },
  1187.  
  1188.     toolbarButton(title, icon, handler, className = '') {
  1189.       return $.create('a', {
  1190.         href: '#',
  1191.         title,
  1192.         className: `iv-icon-button iv-icon iv-icon--type-${icon} ${className}`,
  1193.         events: {
  1194.           click: (event) => {
  1195.             event.preventDefault()
  1196.             handler()
  1197.           },
  1198.         },
  1199.       })
  1200.     },
  1201.   }
  1202.  
  1203.   $.ready().then(async () => {
  1204.     const hostConfig = await initHostConfig()
  1205.  
  1206.     initViewer(hostConfig.enabledHosts)
  1207.   })
  1208. })()