☰

Image Viewer

Allows viewing full image without leaving the page

当前为 2022-05-08 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Image Viewer
  3. // @version      1.1.9
  4. // @description  Allows viewing 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      www.imagebam.com
  14. // @connect      imagevenue.com
  15. // @connect      www.turboimagehost.com
  16. // @connect      fastpic.ru
  17. // @connect      radikal.ru
  18. // @noframes
  19. // @run-at       document-start
  20. // @grant        GM_addStyle
  21. // @grant        GM_xmlhttpRequest
  22. // @grant        GM.xmlHttpRequest
  23. // @grant        GM_setValue
  24. // @grant        GM.setValue
  25. // @grant        GM_getValue
  26. // @grant        GM.getValue
  27. // @grant        GM_registerMenuCommand
  28. // ==/UserScript==
  29.  
  30. ;(function () {
  31.   /* global Bliss */
  32.   // eslint-disable-next-line
  33.   !(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 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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)$/);r.style(this,{transitionDuration:(e||400)+"ms",transitionProperty:Object.keys(t).join(", ")}),r.once(this,"transitionend",function(){clearTimeout(s),r.style(this,o),n(this);});var s=setTimeout(n,e+50,this);r.style(this,t);}else r.style(this,t),n(this);}.bind(this))},fire:function(t,e){var n=document.createEvent("HTMLEvents");return n.initEvent(t,!0,!0),this.dispatchEvent(r.extend(n,e))},bind:t(function(t,e){if(arguments.length>1&&("function"===r.type(e)||e.handleEvent)){var n=e;e="object"===r.type(arguments[2])?arguments[2]:{capture:!!arguments[2]},e.callback=n;}var i=r.listeners.get(this)||{};t.trim().split(/\s+/).forEach(function(t){if(t.indexOf(".")>-1){t=t.split(".");var n=t[1];t=t[0];}i[t]=i[t]||[],0===i[t].filter(function(t){return t.callback===e.callback&&t.capture==e.capture}).length&&i[t].push(r.extend({className:n},e)),r.original.addEventListener.call(this,t,e.callback,e);},this),r.listeners.set(this,i);},0),unbind:t(function(t,e){if(e&&("function"===r.type(e)||e.handleEvent)){var n=e;e=arguments[2];}"boolean"==r.type(e)&&(e={capture:e}),e=e||{},e.callback=e.callback||n;var i=r.listeners.get(this);(t||"").trim().split(/\s+/).forEach(function(t){if(t.indexOf(".")>-1){t=t.split(".");var n=t[1];t=t[0];}if(t&&e.callback)return r.original.removeEventListener.call(this,t,e.callback,e.capture);if(i)for(var o in i)if(!t||o===t)for(var s,a=0;s=i[o][a];a++)n&&n!==s.className||e.callback&&e.callback!==s.callback||!!e.capture!=!!s.capture||(i[o].splice(a,1),r.original.removeEventListener.call(this,o,s.callback,s.capture),a--);},this);},0)},r.setProps={style:function(t){for(var e in t)e in this.style?this.style[e]=t[e]:this.style.setProperty(e,t[e]);},attributes:function(t){for(var e in t)this.setAttribute(e,t[e]);},properties:function(t){r.extend(this,t);},events:function(t){if(1!=arguments.length||!t||!t.addEventListener)return r.bind.apply(this,[this].concat(r.$(arguments)));var e=this;if(r.listeners){var n=r.listeners.get(t);for(var i in n)n[i].forEach(function(t){r.bind(e,i,t.callback,t.capture);});}for(var o in t)0===o.indexOf("on")&&(this[o]=t[o]);},once:t(function(t,e){var n=this,i=function(){return 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);}());
  34.  
  35.   // eslint-disable-next-line
  36.   const $ = Bliss;
  37.   // eslint-disable-next-line
  38.   const $$ = Bliss.$;
  39.  
  40.   function hasOwnProperty(object, property) {
  41.     return Object.prototype.hasOwnProperty.call(object, property)
  42.   }
  43.  
  44.   function getGMPolyfillMethod(methodName) {
  45.     const GM_METHOD_MAP = {
  46.       getValue: 'GM_getValue',
  47.       setValue: 'GM_setValue',
  48.       openInTab: 'GM_openInTab',
  49.     }
  50.  
  51.     if (hasOwnProperty(GM_METHOD_MAP, methodName)) {
  52.       return GM !== undefined && methodName in GM
  53.         ? GM[methodName]
  54.         : function (...arguments_) {
  55.             return new Promise((resolve, reject) => {
  56.               try {
  57.                 resolve(window[GM_METHOD_MAP[methodName]](...arguments_))
  58.               } catch (error) {
  59.                 reject(error)
  60.               }
  61.             })
  62.           }
  63.     }
  64.   }
  65.  
  66.   const addStyle =
  67.     'GM_addStyle' in window
  68.       ? GM_addStyle // eslint-disable-line camelcase
  69.       : (css) => {
  70.           const head = document.querySelectorAll('head')[0]
  71.  
  72.           if (head) {
  73.             const style = document.createElement('style')
  74.  
  75.             style.innerHTML = css
  76.             head.append(style)
  77.  
  78.             return css
  79.           }
  80.         }
  81.  
  82.   let request$1
  83.  
  84.   function getRequest() {
  85.     if (!request$1) {
  86.       const xmlHttpRequest =
  87.         GM !== undefined && 'xmlHttpRequest' in GM
  88.           ? GM.xmlHttpRequest
  89.           : GM_xmlhttpRequest // eslint-disable-line camelcase
  90.  
  91.       request$1 = function (url, { method = 'GET' } = {}) {
  92.         return new Promise((resolve, reject) => {
  93.           xmlHttpRequest({
  94.             url,
  95.             method,
  96.             onload: resolve,
  97.             onerror: reject,
  98.           })
  99.         })
  100.       }
  101.     }
  102.  
  103.     return request$1
  104.   }
  105.  
  106.   let store$1
  107.  
  108.   const getStore = () => {
  109.     if (!store$1) {
  110.       store$1 = {
  111.         get: getGMPolyfillMethod('getValue'),
  112.         set: getGMPolyfillMethod('setValue'),
  113.       }
  114.     }
  115.  
  116.     return store$1
  117.   }
  118.  
  119.   const request = getRequest()
  120.  
  121.   async function getURLFromPage(link, extractor) {
  122.     const html = await getPageHtml(link.url)
  123.  
  124.     const match = extractor.imageURLRegExp?.exec(html)
  125.  
  126.     let url
  127.  
  128.     if (match) {
  129.       url = match.groups ? match.groups.url : match[1]
  130.     }
  131.  
  132.     if (!url) {
  133.       console.warn(`[image-viewer] Unable to get URL from page ${link.url}`)
  134.     }
  135.  
  136.     return url
  137.   }
  138.  
  139.   async function getPageHtml(pageURL) {
  140.     const response = await request(pageURL)
  141.  
  142.     return response.responseText
  143.   }
  144.  
  145.   const fastpic = {
  146.     name: 'FastPic',
  147.     linkRegExp: /^http.?:\/\/fastpic\.ru\/view/,
  148.  
  149.     imageURLRegExp: /src="(?<url>[^"]+)" class="image img-fluid"/,
  150.     getURL: getURLFromPage,
  151.   }
  152.  
  153.   const URL_PARTS_REGEXP = /i(\d+).+big(\/\d+\/\d+\/).+\/([^/]+)$/
  154.  
  155.   const fastpicDirect = {
  156.     name: 'FastPic (direct link)',
  157.     linkRegExp: /fastpic\.ru\/big/,
  158.  
  159.     async getURL(link) {
  160.       let hostLink = link.url
  161.  
  162.       if (hostLink.includes('?')) {
  163.         const urlObject = new URL(hostLink)
  164.         const parameters = new URLSearchParams(urlObject.search)
  165.  
  166.         for (const parameter of parameters.values()) {
  167.           if (fastpicDirect.linkRegExp.test(parameter)) {
  168.             hostLink = parameter
  169.             break
  170.           }
  171.         }
  172.       }
  173.  
  174.       const [, index, date, filename] = URL_PARTS_REGEXP.exec(hostLink)
  175.  
  176.       const url = `https://fastpic.ru/view/${index}${date}${filename}.html`
  177.  
  178.       return fastpic.getURL({ ...link, url }, fastpic)
  179.     },
  180.   }
  181.  
  182.   const imagebam = {
  183.     name: 'ImageBam',
  184.     linkRegExp: /^http:\/\/www\.imagebam\.com\/image/,
  185.     imageURLRegExp: /property="og:image" content="([^"]*)"/,
  186.     getURL: getURLFromPage,
  187.   }
  188.  
  189.   const DATE_PATTERN = /(\d{4})\.(\d{2})\.(\d{2})/
  190.  
  191.   const imageban = {
  192.     name: 'ImageBan.ru',
  193.     linkRegExp: /\/\/imageban\.ru\/show/,
  194.  
  195.     async getURL(link) {
  196.       return link.thumbnailURL
  197.         .replace('thumbs', 'out')
  198.         .replace(DATE_PATTERN, '$1/$2/$3')
  199.     },
  200.   }
  201.  
  202.   const imagebanDirect = {
  203.     name: 'ImageBan.ru (direct link)',
  204.     linkRegExp: /imageban\.ru\/out/,
  205.  
  206.     async getURL(link) {
  207.       return link.url
  208.     },
  209.   }
  210.  
  211.   const imagetwist = {
  212.     name: 'ImageTwist',
  213.     linkRegExp: /imagetwist\.com/,
  214.  
  215.     async getURL(link) {
  216.       const imageName = link.url.split('/').pop()?.replace('.html', '')
  217.       const extension = imageName?.split('.').pop()
  218.       const imageUrl = link.thumbnailURL
  219.         .replace('/th/', '/i/')
  220.         .slice(0, -(extension?.length ?? 0))
  221.  
  222.       return `${imageUrl}${extension}/${imageName}`
  223.     },
  224.   }
  225.  
  226.   const HOST_REPLACE_REG_EXP = /(picturelol|picshick|imageshimage)/
  227.  
  228.   const imagetwistBased = {
  229.     name: 'ImageTwist based (legacy)',
  230.     hosts: ['Picturelol.com', 'PicShick.com', 'Imageshimage.com'],
  231.     linkRegExp: /^https?:\/\/(picturelol|picshick|imageshimage)\.com/,
  232.  
  233.     async getURL(link) {
  234.       const imageName = link.url.split('/').pop()
  235.       const imageUrl = link.thumbnailURL
  236.         .replace('/th/', '/i/')
  237.         .replace(HOST_REPLACE_REG_EXP, 'imagetwist')
  238.  
  239.       return `${imageUrl}/${imageName}`
  240.     },
  241.   }
  242.  
  243.   const imagevenueLegacy = {
  244.     name: 'ImageVenue.com',
  245.  
  246.     linkRegExp: /(imagevenue.com\/img.php|www.imagevenue.com\/\\w+$)/,
  247.     imageURLRegExp: /data-toggle="full">\W*<img src="(?<url>[^"]*)/im,
  248.  
  249.     getURL: getURLFromPage,
  250.   }
  251.  
  252.   const imgadult = {
  253.     name: 'ImgAdult.com',
  254.     linkRegExp: /^https:\/\/imgadult\.com/,
  255.  
  256.     async getURL(link) {
  257.       return link.thumbnailURL.replace('/small/', '/big/')
  258.     },
  259.   }
  260.  
  261.   const imgbb = {
  262.     name: 'imgbb.com',
  263.     linkRegExp: /^https:\/\/ibb\.co/,
  264.  
  265.     async getURL(link) {
  266.       return link.thumbnailURL.replace('//thumb', '//image')
  267.     },
  268.   }
  269.  
  270.   const imgbox = {
  271.     name: 'imgbox.com',
  272.     linkRegExp: /^http:\/\/imgbox\.com/,
  273.  
  274.     async getURL(link) {
  275.       return link.thumbnailURL.replace('/thumbs', '/images').replace('_t', '_o')
  276.     },
  277.   }
  278.  
  279.   const imgbum = {
  280.     name: 'imgbum.net',
  281.     linkRegExp: /^http:\/\/imgbum\.net/,
  282.  
  283.     async getURL(link) {
  284.       return link.thumbnailURL.replace('-thumb', '')
  285.     },
  286.   }
  287.  
  288.   const imgchilibum = {
  289.     name: 'imgchilibum.ru',
  290.     linkRegExp: /^http:\/\/imgchilibum\.ru\/v/,
  291.  
  292.     async getURL(link) {
  293.       return link.thumbnailURL.replace('_s/', '_b/')
  294.     },
  295.   }
  296.  
  297.   const imgdrive = {
  298.     name: 'ImgDrive.net',
  299.     linkRegExp: /^https:\/\/imgdrive\.net/,
  300.  
  301.     async getURL(link) {
  302.       return link.thumbnailURL.replace('small', 'big')
  303.     },
  304.   }
  305.  
  306.   const imgtaxi = {
  307.     name: 'imgtaxi.com',
  308.     linkRegExp: /^https:\/\/imgtaxi\.com/,
  309.  
  310.     async getURL(link) {
  311.       return link.thumbnailURL
  312.         .replace('/small/', '/big/')
  313.         .replace('/small-medium/', '/big/')
  314.     },
  315.   }
  316.  
  317.   const imx = {
  318.     name: 'IMX.to',
  319.     linkRegExp: /^https:\/\/imx\.to/,
  320.  
  321.     async getURL(link) {
  322.       return link.thumbnailURL.replace('/imx', '/i.imx').replace('/u/t/', '/i/')
  323.     },
  324.   }
  325.  
  326.   const lostpic = {
  327.     name: 'Lostpic.net',
  328.     linkRegExp: /^http:\/\/lostpic\.net/,
  329.  
  330.     async getURL(link) {
  331.       return link.thumbnailURL.replace('.th', '').replace('http:', 'https:')
  332.     },
  333.   }
  334.  
  335.   const moneyPic = {
  336.     name: 'money-pic.ru',
  337.     linkRegExp: /^http:\/\/money-pic\.ru/,
  338.  
  339.     async getURL(link) {
  340.       return link.thumbnailURL.replace('-thumb', '')
  341.     },
  342.   }
  343.  
  344.   const nikapic = {
  345.     name: 'nikapic.ru',
  346.     linkRegExp: /^http:\/\/nikapic\.ru/,
  347.  
  348.     async getURL(link) {
  349.       return link.thumbnailURL.replace('/small/', '/big/')
  350.     },
  351.   }
  352.  
  353.   const picage = {
  354.     name: 'picage.ru',
  355.     linkRegExp: /^http:\/\/picage\.ru/,
  356.  
  357.     async getURL(link) {
  358.       return link.thumbnailURL
  359.         .replace('picage', 'pic4you')
  360.         .replace('-thumb', '')
  361.     },
  362.   }
  363.  
  364.   const piccash = {
  365.     name: 'PicCash.net',
  366.     linkRegExp: /^http:\/\/piccash\.net\//,
  367.  
  368.     async getURL(link) {
  369.       return link.thumbnailURL.replace('_thumb', '_full').replace('-thumb', '')
  370.     },
  371.   }
  372.  
  373.   const HOST_REPLACE_REG_EX$1 =
  374.     /(freescreens\.ru|imgclick\.ru|picclick\.ru|payforpic\.ru|picforall\.ru)/
  375.  
  376.   const picforall = {
  377.     name: 'PicForAll.ru',
  378.     hosts: [
  379.       'freescreens.ru',
  380.       'imgclick.ru',
  381.       'picclick.ru',
  382.       'payforpic.ru',
  383.       'picforall.ru',
  384.     ],
  385.     linkRegExp:
  386.       /^http:\/\/(freescreens\.ru|imgclick\.ru|picclick\.ru|payforpic\.ru|picforall\.ru)/,
  387.  
  388.     async getURL(link) {
  389.       return link.thumbnailURL
  390.         .replace(HOST_REPLACE_REG_EX$1, 'picpic.online')
  391.         .replace('-thumb', '')
  392.     },
  393.   }
  394.  
  395.   const HOST_REPLACE_REG_EX =
  396.     /(iceimg\.net|pixsense\.net|vestimage\.site|chaosimg\.site)/
  397.  
  398.   const pixsense = {
  399.     name: 'PixSense',
  400.     hosts: [
  401.       'www.iceimg.net',
  402.       'www.pixsense.net',
  403.       'www.vestimage.site',
  404.       'www.chaosimg.site',
  405.     ],
  406.     linkRegExp:
  407.       /^http:\/\/www\.(iceimg\.net|pixsense\.net|vestimage\.site|chaosimg\.site)/,
  408.  
  409.     async getURL(link) {
  410.       return link.thumbnailURL
  411.         .replace(HOST_REPLACE_REG_EX, 'fortstore.net')
  412.         .replace('small-', '')
  413.         .replace('/small/', '/big/')
  414.     },
  415.   }
  416.  
  417.   const radikal = {
  418.     name: 'Radikal.ru',
  419.     linkRegExp: /https?:\/\/.\.radikal\.ru\//,
  420.  
  421.     async getURL(link) {
  422.       return link.url
  423.     },
  424.   }
  425.  
  426.   const radikalLegacy = {
  427.     name: 'Radikal.ru (legacy)',
  428.     linkRegExp: /^http:\/\/radikal\.ru\//,
  429.     imageURLRegExp: /id="imgFullSize" src="(?<url>[^"]+)"/,
  430.     getURL: getURLFromPage,
  431.   }
  432.  
  433.   const stuffed = {
  434.     name: 'stuffed.ru',
  435.     linkRegExp: /^http:\/\/stuffed\.ru/,
  436.  
  437.     async getURL(link) {
  438.       return link.thumbnailURL.replace('-thumb', '')
  439.     },
  440.   }
  441.  
  442.   const turboimagehost = {
  443.     name: 'TurboImageHost',
  444.     linkRegExp: /^https:\/\/www\.turboimagehost\.com\/p/,
  445.     imageURLRegExp: /property="og:image" content="([^"]*)"/,
  446.     getURL: getURLFromPage,
  447.   }
  448.  
  449.   const vfl = {
  450.     name: 'VFL.ru',
  451.     linkRegExp: /^http:\/\/vfl\.ru/,
  452.  
  453.     async getURL(link) {
  454.       return link.thumbnailURL.replace('_s', '')
  455.     },
  456.   }
  457.  
  458.   const xxxscreens = {
  459.     name: 'XXXScreens.com',
  460.     linkRegExp: /^http:\/\/xxxscreens\.com/,
  461.  
  462.     async getURL(link) {
  463.       return link.thumbnailURL.replace('small/', 'big/')
  464.     },
  465.   }
  466.  
  467.   const hostExtractors = /* #__PURE__ */ Object.freeze({
  468.     __proto__: null,
  469.     fastpic,
  470.     fastpicDirect,
  471.     imagebam,
  472.     imageban,
  473.     imagebanDirect,
  474.     imagetwist,
  475.     imagetwistBased,
  476.     imagevenueLegacy,
  477.     imgadult,
  478.     imgbb,
  479.     imgbox,
  480.     imgbum,
  481.     imgchilibum,
  482.     imgdrive,
  483.     imgtaxi,
  484.     imx,
  485.     lostpic,
  486.     moneyPic,
  487.     nikapic,
  488.     picage,
  489.     piccash,
  490.     picforall,
  491.     pixsense,
  492.     radikal,
  493.     radikalLegacy,
  494.     stuffed,
  495.     turboimagehost,
  496.     vfl,
  497.     xxxscreens,
  498.   })
  499.  
  500.   let extractorsActive = []
  501.  
  502.   const extractors = Object.values(hostExtractors).filter(Boolean)
  503.  
  504.   const extractorsByName = extractors.reduce((result, extractor) => {
  505.     result[extractor.name] = extractor
  506.  
  507.     return result
  508.   }, {})
  509.  
  510.   const urlExtractor = {
  511.     getImageHostsMetadata() {
  512.       const result = extractors.map(({ name, hosts }) => ({
  513.         name,
  514.         description: hosts ? hosts.join(', ') : '',
  515.       }))
  516.  
  517.       return sortCaseInsensitive(result, ({ name }) => name)
  518.     },
  519.  
  520.     getImageURL(link) {
  521.       const extractor = extractorsByName[link.host]
  522.  
  523.       return extractor.getURL(link, extractor)
  524.     },
  525.  
  526.     getHostNameMatcher(enabledHosts) {
  527.       extractorsActive = extractors.filter((extractor) =>
  528.         enabledHosts.includes(extractor.name)
  529.       )
  530.  
  531.       let previousExtractor
  532.  
  533.       return (url) => {
  534.         if (previousExtractor && previousExtractor.linkRegExp.test(url)) {
  535.           return previousExtractor.name
  536.         }
  537.  
  538.         const extractor = extractorsActive.find((extractor) =>
  539.           extractor.linkRegExp.test(url)
  540.         )
  541.  
  542.         if (extractor) {
  543.           previousExtractor = extractor
  544.  
  545.           return extractor.name
  546.         }
  547.       }
  548.     },
  549.   }
  550.  
  551.   function sortCaseInsensitive(items, getValue) {
  552.     return items
  553.       .map((value, index) => ({ index, value: getValue(value).toLowerCase() }))
  554.       .sort((a, b) => {
  555.         if (a.value > b.value) {
  556.           return 1
  557.         }
  558.         if (a.value < b.value) {
  559.           return -1
  560.         }
  561.  
  562.         return 0
  563.       })
  564.       .map((m) => items[m.index])
  565.   }
  566.  
  567.   const store = getStore()
  568.  
  569.   const CLASSES$1 = {
  570.     open: 'iv-config-form--open',
  571.   }
  572.  
  573.   let configMenu
  574.   const currentHost = unsafeWindow.location.host
  575.  
  576.   async function initHostConfig() {
  577.     const config = await getHostConfig()
  578.  
  579.     const handler = () => showMenu(config)
  580.  
  581.     // eslint-disable-next-line camelcase
  582.     if (typeof GM_registerMenuCommand !== 'undefined') {
  583.       GM_registerMenuCommand('Image Viewer Settings', handler)
  584.     } else {
  585.       unsafeWindow.imageViewer = {
  586.         settings: handler,
  587.       }
  588.     }
  589.  
  590.     return config
  591.   }
  592.  
  593.   async function getHostConfig() {
  594.     const hosts = urlExtractor.getImageHostsMetadata()
  595.  
  596.     const storedConfig = await store.get(currentHost, { hosts: {} })
  597.     const enabledHosts = []
  598.  
  599.     for (const host of hosts) {
  600.       const id = host.name
  601.       const isEnabled = id in storedConfig.hosts ? storedConfig.hosts[id] : true
  602.  
  603.       host.isEnabled = isEnabled
  604.       storedConfig.hosts[id] = isEnabled
  605.  
  606.       if (isEnabled) {
  607.         enabledHosts.push(id)
  608.       }
  609.     }
  610.  
  611.     storedConfig.hosts = hosts.reduce((result, host) => {
  612.       result[host.name] = host.isEnabled
  613.  
  614.       return result
  615.     }, {})
  616.  
  617.     return {
  618.       hosts,
  619.       storedConfig,
  620.       enabledHosts,
  621.     }
  622.   }
  623.  
  624.   function showMenu(config) {
  625.     createMenuElement(config).classList.add(CLASSES$1.open)
  626.   }
  627.  
  628.   function createMenuElement(config) {
  629.     if (configMenu) {
  630.       return configMenu
  631.     }
  632.  
  633.     const rows = config.hosts.map((host) => createConfigMenuRow(host))
  634.  
  635.     configMenu = $.create('div', {
  636.       id: 'iv-config-form',
  637.       className: 'iv-config-form',
  638.       contents: [
  639.         createMenuHeader(),
  640.         {
  641.           tag: 'div',
  642.           className: 'iv-config-form__options',
  643.           contents: rows,
  644.         },
  645.       ],
  646.       delegate: {
  647.         change: {
  648.           '.js-iv-config-checkbox': ({ target: { value, checked } }) =>
  649.             updateHostConfig(config.storedConfig, value, checked),
  650.         },
  651.       },
  652.     })
  653.  
  654.     document.body.append(configMenu)
  655.  
  656.     return configMenu
  657.   }
  658.  
  659.   function createConfigMenuRow(host) {
  660.     return $.create('label', {
  661.       className: 'iv-config-form__label',
  662.       title: host.description,
  663.       contents: [
  664.         {
  665.           tag: 'input',
  666.           type: 'checkbox',
  667.           className: 'iv-config-form__checkbox js-iv-config-checkbox',
  668.           checked: host.isEnabled,
  669.           value: host.name,
  670.         },
  671.         host.name,
  672.       ],
  673.     })
  674.   }
  675.  
  676.   function createMenuHeader() {
  677.     const closeButton = $.create('a', {
  678.       href: '#',
  679.       title: 'Close',
  680.       className: `iv-icon-button iv-icon-button--small iv-icon iv-icon--type-close`,
  681.       events: {
  682.         click: (event) => {
  683.           event.preventDefault()
  684.           configMenu.classList.remove(CLASSES$1.open)
  685.         },
  686.       },
  687.     })
  688.  
  689.     return {
  690.       tag: 'div',
  691.       className: 'iv-config-form__header',
  692.       contents: [
  693.         {
  694.           tag: 'span',
  695.           className: 'iv-config-form__header-title',
  696.           contents: `Settings for ${currentHost}`,
  697.         },
  698.         closeButton,
  699.       ],
  700.     }
  701.   }
  702.  
  703.   function updateHostConfig(config, hostName, isEnabled) {
  704.     config.hosts[hostName] = isEnabled
  705.     store.set(currentHost, config)
  706.   }
  707.  
  708.   const css_248z =
  709.     "@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 fill='%23fff' height='24' width='24' xmlns='http://www.w3.org/2000/svg'%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 14z'/%3E%3Cpath d='M0 0h24v24H0V0z' fill='none'/%3E%3Cpath d='M12 10h-2v2H9v-2H7V9h2V7h1v2h2v1z'/%3E%3C/svg%3E\")}.iv-icon--type-next:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg fill='%23fff' height='24' width='24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z'/%3E%3Cpath d='M0 0h24v24H0z' fill='none'/%3E%3C/svg%3E\")}.iv-icon--type-previous:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg fill='%23fff' height='24' width='24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M15.41 7.41 14 6l-6 6 6 6 1.41-1.41L10.83 12z'/%3E%3Cpath d='M0 0h24v24H0z' fill='none'/%3E%3C/svg%3E\")}.iv-icon--type-close:after{background-image:url(\"data:image/svg+xml;charset=utf-8,%3Csvg fill='%23fff' height='24' width='24' xmlns='http://www.w3.org/2000/svg'%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 12z'/%3E%3Cpath d='M0 0h24v24H0z' fill='none'/%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' width='24' height='24' fill='%23fff'%3E%3Cpath d='M5 5h5v2H7v3H5V5m9 0h5v5h-2V7h-3V5m3 9h2v5h-5v-2h3v-3m-7 3v2H5v-5h2v3h3z'/%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' width='24' height='24' fill='%23fff'%3E%3Cpath d='M14 14h5v2h-3v3h-2v-5m-9 0h5v5H8v-3H5v-2m3-9h2v5H5V8h3V5m11 3v2h-5V5h2v3h3z'/%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}"
  710.  
  711.   const CLASSES = {
  712.     imageLink: 'js-image-link',
  713.     imageLinkZoom: 'iv-icon--type-zoom',
  714.     imageLinkHover: 'iv-icon--hover',
  715.     brokenImage: 'iv-icon--type-image-broken',
  716.     loadingIcon: 'iv-icon--type-loading',
  717.     loading: 'iv-image-view__image--loading',
  718.     thumbnail: 'iv-image-view__image--thumbnail',
  719.     open: 'iv-image-view--open',
  720.     single: 'iv-image-view--single',
  721.     fullHeight: 'iv-image-view--full-height',
  722.     iconExpand: 'iv-icon--type-expand',
  723.     iconShrink: 'iv-icon--type-shrink',
  724.     grabbing: 'iv-image--grabbing',
  725.     buttonActive: 'iv-icon-button--active',
  726.   }
  727.  
  728.   const SELECTORS = {
  729.     imageLink: `.${CLASSES.imageLink}`,
  730.   }
  731.  
  732.   const EMPTY_SRC =
  733.     'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEAAAAALAAAAAABAAEAAAI='
  734.  
  735.   const TRANSITION_DURATION = 350
  736.  
  737.   function initViewer(enabledHosts) {
  738.     addStyle(css_248z)
  739.  
  740.     const container = $('body')
  741.  
  742.     const linkClasses = [
  743.       CLASSES.imageLink,
  744.       'iv-image-link',
  745.       'iv-icon',
  746.       'iv-icon--hover',
  747.       CLASSES.imageLinkZoom,
  748.       'iv-icon--size-button',
  749.     ]
  750.  
  751.     const getHostName = urlExtractor.getHostNameMatcher(enabledHosts)
  752.  
  753.     const imagesWithLinks = $$('a > img, a > var', container)
  754.       .map((img) => ({
  755.         link: img.parentElement,
  756.         thumbnailUrl: img.src || img.title,
  757.       }))
  758.       .filter(({ link }) => link.href)
  759.  
  760.     for (const { link, thumbnailUrl } of imagesWithLinks) {
  761.       const hostName = getHostName(link.href)
  762.  
  763.       if (hostName) {
  764.         link.dataset.ivHost = hostName
  765.         link.dataset.ivThumbnail = thumbnailUrl
  766.         link.classList.add(...linkClasses)
  767.       }
  768.     }
  769.  
  770.     $.delegate(container, 'click', SELECTORS.imageLink, events.linkClick)
  771.   }
  772.  
  773.   const elements = {
  774.     container: undefined,
  775.     image: undefined,
  776.     imageThumbnail: undefined,
  777.     imageContainer: undefined,
  778.     imageNumber: undefined,
  779.     imageTotal: undefined,
  780.     buttons: {
  781.       next: undefined,
  782.       previous: undefined,
  783.       close: undefined,
  784.       toggleFullHeight: undefined,
  785.     },
  786.   }
  787.  
  788.   const state = {
  789.     isFirstClick: true,
  790.     isOpened: false,
  791.     currentLink: undefined,
  792.     linksSet: [],
  793.     isSingle: false,
  794.     getCurrentLinkIndex() {
  795.       return this.currentLink === undefined
  796.         ? -1
  797.         : this.linksSet.indexOf(this.currentLink)
  798.     },
  799.     getLastLinkIndex() {
  800.       return this.linksSet.length - 1
  801.     },
  802.     dragPosition: 0,
  803.     dragging: false,
  804.   }
  805.  
  806.   const image = {
  807.     async show(link) {
  808.       const container = elements.container
  809.       const img = elements.image
  810.       const thumbnail = elements.imageThumbnail
  811.  
  812.       state.currentLink = link
  813.  
  814.       if (state.isSingle) {
  815.         container.classList.add(CLASSES.single)
  816.       } else {
  817.         container.classList.remove(CLASSES.single)
  818.         elements.imageNumber.textContent = (
  819.           state.getCurrentLinkIndex() + 1
  820.         ).toString()
  821.       }
  822.  
  823.       if (!state.isOpened) {
  824.         document.documentElement.classList.add(CLASSES.open)
  825.         state.isOpened = true
  826.       }
  827.  
  828.       img.src = EMPTY_SRC
  829.  
  830.       if (link.classList.contains(CLASSES.brokenImage)) {
  831.         container.classList.add(CLASSES.brokenImage)
  832.  
  833.         return
  834.       }
  835.  
  836.       container.classList.remove(CLASSES.brokenImage)
  837.  
  838.       container.classList.add(CLASSES.loading, CLASSES.loadingIcon)
  839.  
  840.       const isSizeKnown = !!link.dataset.ivWidth
  841.       const thumbnailURL = link.dataset.ivThumbnail
  842.  
  843.       if (!thumbnailURL || !link.dataset.ivHost) {
  844.         throw new Error(
  845.           '[image-viewer] Either thumbnail URL or host is not set'
  846.         )
  847.       }
  848.  
  849.       if (isSizeKnown) {
  850.         thumbnail.width = Number(link.dataset.ivWidth)
  851.         thumbnail.src = thumbnailURL
  852.  
  853.         container.classList.add(CLASSES.thumbnail)
  854.       }
  855.  
  856.       let imageURL = link.dataset.ivImgUrl
  857.  
  858.       if (!imageURL) {
  859.         imageURL = await urlExtractor.getImageURL({
  860.           url: link.href,
  861.           thumbnailURL,
  862.           host: link.dataset.ivHost,
  863.         })
  864.  
  865.         if (!imageURL) {
  866.           image.markAsBroken(link)
  867.  
  868.           return
  869.         }
  870.  
  871.         link.dataset.ivImgUrl = imageURL
  872.       }
  873.  
  874.       try {
  875.         await image.preload(
  876.           imageURL,
  877.           isSizeKnown ? undefined : image.setThumbnailSize
  878.         )
  879.  
  880.         img.src = imageURL
  881.  
  882.         container.classList.remove(
  883.           CLASSES.thumbnail,
  884.           CLASSES.loading,
  885.           CLASSES.loadingIcon
  886.         )
  887.  
  888.         setTimeout(image.hideThumbnail, TRANSITION_DURATION)
  889.       } catch {
  890.         link.classList.remove(CLASSES.imageLink)
  891.         image.markAsBroken(link)
  892.  
  893.         $.attributes(link, { target: '_blank' })
  894.       }
  895.     },
  896.  
  897.     preload(url, onSizeGet) {
  898.       return new Promise((resolve, reject) => {
  899.         const imageObject = new Image()
  900.  
  901.         imageObject.addEventListener('load', () => resolve())
  902.         imageObject.addEventListener('error', reject)
  903.  
  904.         imageObject.src = url
  905.  
  906.         if (onSizeGet) {
  907.           image.getSize(imageObject).then(onSizeGet)
  908.         }
  909.       })
  910.     },
  911.  
  912.     getSize(img) {
  913.       return new Promise((resolve) => {
  914.         const intervalId = setInterval(() => {
  915.           if (img.naturalWidth) {
  916.             clearInterval(intervalId)
  917.             resolve({ width: img.naturalWidth, isLoaded: img.complete })
  918.           }
  919.         }, 10)
  920.       })
  921.     },
  922.  
  923.     setThumbnailSize({ width, isLoaded }) {
  924.       if (!state.currentLink) {
  925.         throw new Error('[image-viewer] currentLink is not set')
  926.       }
  927.  
  928.       const thumbnailURL = state.currentLink.dataset.ivThumbnail
  929.  
  930.       if (!thumbnailURL) {
  931.         throw new Error('[image-viewer] Thumbnail URL is not set')
  932.       }
  933.  
  934.       elements.imageThumbnail.width = width
  935.       elements.imageThumbnail.src = thumbnailURL
  936.  
  937.       if (!isLoaded) {
  938.         elements.container.classList.add(CLASSES.thumbnail)
  939.       }
  940.  
  941.       state.currentLink.dataset.ivWidth = width.toString()
  942.     },
  943.  
  944.     hideThumbnail() {
  945.       elements.imageThumbnail.removeAttribute('width')
  946.       elements.imageThumbnail.src = EMPTY_SRC
  947.     },
  948.  
  949.     hide() {
  950.       document.documentElement.classList.remove(CLASSES.open)
  951.       state.isOpened = false
  952.       state.currentLink = undefined
  953.       elements.image.src = EMPTY_SRC
  954.       events.keyboard.unbind()
  955.     },
  956.  
  957.     next() {
  958.       const currentIndex = state.getCurrentLinkIndex()
  959.       const newIndex =
  960.         currentIndex < state.getLastLinkIndex() ? currentIndex + 1 : 0
  961.  
  962.       image.show(state.linksSet[newIndex])
  963.     },
  964.  
  965.     previous() {
  966.       const currentIndex = state.getCurrentLinkIndex()
  967.       const newIndex =
  968.         currentIndex === 0 ? state.getLastLinkIndex() : currentIndex - 1
  969.  
  970.       image.show(state.linksSet[newIndex])
  971.     },
  972.  
  973.     toggleFullHeight() {
  974.       elements.container.classList.toggle(CLASSES.fullHeight)
  975.       elements.buttons.toggleFullHeight.classList.toggle(CLASSES.iconExpand)
  976.       elements.buttons.toggleFullHeight.classList.toggle(CLASSES.iconShrink)
  977.     },
  978.  
  979.     markAsBroken(link) {
  980.       elements.container.classList.replace(
  981.         CLASSES.loadingIcon,
  982.         CLASSES.brokenImage
  983.       )
  984.       elements.container.classList.remove(CLASSES.loading)
  985.       link.classList.replace(CLASSES.imageLinkZoom, CLASSES.brokenImage)
  986.     },
  987.   }
  988.  
  989.   const events = {
  990.     linkClick(event) {
  991.       event.preventDefault()
  992.  
  993.       if (state.isFirstClick) {
  994.         create.viewContainer()
  995.         state.isFirstClick = false
  996.       }
  997.  
  998.       const link = event.target
  999.  
  1000.       state.linksSet = $$(SELECTORS.imageLink, link.parentElement ?? undefined)
  1001.       state.isSingle = state.linksSet.length === 1
  1002.  
  1003.       if (!state.isSingle) {
  1004.         elements.imageTotal.textContent = state.linksSet.length.toString()
  1005.       }
  1006.  
  1007.       events.keyboard.bind()
  1008.  
  1009.       image.show(link)
  1010.     },
  1011.  
  1012.     keyboard: {
  1013.       bind() {
  1014.         document.addEventListener('keydown', events.keyboard.handler, true)
  1015.       },
  1016.       unbind() {
  1017.         document.removeEventListener('keydown', events.keyboard.handler, true)
  1018.       },
  1019.  
  1020.       handler(event) {
  1021.         if (event.defaultPrevented || event.repeat) {
  1022.           return
  1023.         }
  1024.  
  1025.         switch (event.key) {
  1026.           case 'ArrowRight':
  1027.             image.next()
  1028.             break
  1029.  
  1030.           case 'ArrowLeft':
  1031.             image.previous()
  1032.             break
  1033.  
  1034.           case 'Escape':
  1035.             image.hide()
  1036.             break
  1037.  
  1038.           case ' ':
  1039.             image.toggleFullHeight()
  1040.             break
  1041.  
  1042.           default:
  1043.             return
  1044.         }
  1045.  
  1046.         event.preventDefault()
  1047.       },
  1048.     },
  1049.  
  1050.     mouse(event) {
  1051.       switch (event.type) {
  1052.         case 'mousedown':
  1053.           state.dragging = true
  1054.           state.dragPosition = event.clientY
  1055.           elements.image.classList.add(CLASSES.grabbing)
  1056.           break
  1057.  
  1058.         case 'mousemove':
  1059.           if (state.dragging) {
  1060.             elements.imageContainer.scrollTop -=
  1061.               event.clientY - state.dragPosition
  1062.             state.dragPosition = event.clientY
  1063.           }
  1064.           break
  1065.  
  1066.         case 'mouseup':
  1067.  
  1068.         // fall through
  1069.         case 'mouseout':
  1070.           state.dragging = false
  1071.           elements.image.classList.remove(CLASSES.grabbing)
  1072.           break
  1073.  
  1074.         case 'dblclick':
  1075.           image.toggleFullHeight()
  1076.           break
  1077.  
  1078.         default:
  1079.           return
  1080.       }
  1081.  
  1082.       event.preventDefault()
  1083.     },
  1084.   }
  1085.  
  1086.   const create = {
  1087.     viewContainer() {
  1088.       elements.container = $.create('div', {
  1089.         className: 'iv-image-view iv-icon iv-icon--size-button',
  1090.         contents: [
  1091.           create.viewContainerHeader(),
  1092.           create.viewContainerBody(),
  1093.           create.viewContainerFooter(),
  1094.         ],
  1095.       })
  1096.  
  1097.       document.body.append(elements.container)
  1098.     },
  1099.  
  1100.     viewContainerBody() {
  1101.       elements.image = $.create('img', {
  1102.         className: 'iv-image',
  1103.         events: {
  1104.           'mousedown mouseup mousemove mouseout dblclick': events.mouse,
  1105.         },
  1106.       })
  1107.  
  1108.       elements.imageThumbnail = $.create('img', {
  1109.         className: 'iv-thumbnail',
  1110.       })
  1111.  
  1112.       elements.imageContainer = $.create('div', {
  1113.         className: 'iv-image-view__body',
  1114.         contents: [
  1115.           {
  1116.             tag: 'div',
  1117.             className: 'iv-image-view__backdrop',
  1118.             events: {
  1119.               click: image.hide,
  1120.             },
  1121.           },
  1122.           {
  1123.             tag: 'div',
  1124.             className: 'iv-thumbnail-wrapper',
  1125.             contents: elements.imageThumbnail,
  1126.           },
  1127.           elements.image,
  1128.         ],
  1129.       })
  1130.  
  1131.       return elements.imageContainer
  1132.     },
  1133.  
  1134.     viewContainerHeader() {
  1135.       elements.imageNumber = document.createElement('span')
  1136.       elements.imageTotal = document.createElement('span')
  1137.       const imageNumber = $.create('div', {
  1138.         className: 'iv-image-view__number single-hide',
  1139.         contents: [elements.imageNumber, '/', elements.imageTotal],
  1140.       })
  1141.  
  1142.       elements.buttons.close = create.toolbarButton(
  1143.         'Close (Esc)',
  1144.         'close',
  1145.         image.hide
  1146.       )
  1147.  
  1148.       return {
  1149.         tag: 'div',
  1150.         className: 'iv-image-view__header-wrapper',
  1151.         contents: {
  1152.           tag: 'div',
  1153.           className: 'iv-image-view__header',
  1154.           contents: [imageNumber, elements.buttons.close],
  1155.         },
  1156.       }
  1157.     },
  1158.  
  1159.     viewContainerFooter() {
  1160.       const buttons = elements.buttons
  1161.  
  1162.       buttons.previous = create.toolbarButton(
  1163.         'Previous (←)',
  1164.         'previous',
  1165.         image.previous,
  1166.         'single-hide'
  1167.       )
  1168.       buttons.toggleFullHeight = create.toolbarButton(
  1169.         'Toggle full height (Space)',
  1170.         'expand',
  1171.         image.toggleFullHeight
  1172.       )
  1173.       buttons.next = create.toolbarButton(
  1174.         'Next (→)',
  1175.         'next',
  1176.         image.next,
  1177.         'single-hide'
  1178.       )
  1179.  
  1180.       return {
  1181.         tag: 'div',
  1182.         className: 'iv-image-view__footer-wrapper',
  1183.         contents: {
  1184.           tag: 'div',
  1185.           className: 'iv-image-view__footer',
  1186.           contents: [buttons.previous, buttons.toggleFullHeight, buttons.next],
  1187.         },
  1188.       }
  1189.     },
  1190.  
  1191.     toolbarButton(title, icon, handler, className = '') {
  1192.       return $.create('a', {
  1193.         href: '#',
  1194.         title,
  1195.         className: `iv-icon-button iv-icon iv-icon--type-${icon} ${className}`,
  1196.         events: {
  1197.           click: (event) => {
  1198.             event.preventDefault()
  1199.             handler()
  1200.           },
  1201.         },
  1202.       })
  1203.     },
  1204.   }
  1205.  
  1206.   $.ready().then(async () => {
  1207.     const hostConfig = await initHostConfig()
  1208.  
  1209.     initViewer(hostConfig.enabledHosts)
  1210.   })
  1211. })()