Bionic Reading User Script ⌘ + B
Version vom
// ==UserScript==
// @name Bionic Reading Neo
// @namespace http://tampermonkey.net/
// @version 0.1.1
// @description Bionic Reading User Script ⌘ + B
// @author RoCry
// @match *://*/*
// @icon data:image/png;base64,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
// @exclude /\.(js|java|c|cpp|h|py|css|less|scss|json|yaml|yml|xml)(?:\?.+)$/
// @license MIT
// @run-at document-end
// @grant GM_getValue
// @grant GM_setValue
// ==/UserScript==
/*
To change config, open browser console and run:
1. Get current config:
> GM_getValue('config')
2. Set new config (example):
> const newConfig = GM_getValue('config')
> newConfig.scale = 0.7 // change any option you want
> GM_setValue('config', newConfig)
3. Refresh the page to apply changes
Available config options are listed below in defaultConfig
*/
const defaultConfig = {
// Whether to automatically apply bionic reading when page loads
autoBionic: false,
// Whether to skip processing text inside <a> tags that contain URLs
skipLinks: true,
// The ratio of characters to bold at the start of each word (0.0 to 1.0)
scale: 0.5,
// Maximum number of characters to bold in any word (null for no limit)
maxBionicLength: null,
// Opacity of the bold text (0.0 to 1.0)
opacity: 1,
// Number of words to skip between processed words (0 for no skipping)
// Higher values create a "saccade" effect, mimicking natural eye movement
saccade: 0,
// Whether to use special Unicode characters instead of bold text
symbolMode: false,
// Whether to skip processing words in the excludeWords list
skipWords: true,
// List of common words to skip when skipWords is true
excludeWords: ['is','and','as','if','the','of','to','be','for','this'],
// Minimum word length to apply bionic reading (shorter words are skipped)
minWordLength: 3,
// Minimum ratio of ASCII characters required to consider content as English
// (0.0 to 1.0) - Higher values mean stricter English detection
minAsciiRatio: 0.9,
// Number of characters to analyze for language detection
charsToCheck: 300
};
let config = defaultConfig;
try {
config = (_=>{
const _config = GM_getValue('config');
if(!_config) return defaultConfig;
for(let key in defaultConfig){
if(_config[key] === undefined) _config[key] = defaultConfig[key];
}
return _config;
})();
GM_setValue('config',config);
} catch(e) {
console.log('Failed to read default config')
}
let isBionic = false;
let body = document.body;
const styleEl = document.createElement('style');
styleEl.textContent = `bbb{font-weight:bold;opacity:${config.opacity}}html[data-site="greasyfork"] a bionic{pointer-events:none}`;
document.documentElement.setAttribute('data-site',location.hostname.replace(/\.\w+$|www\./ig,''))
const excludeNodeNames = [
'script','style','xmp',
'input','textarea','select',
'pre','code',
'h1','h2',
'b','strong',
'svg','embed',
'img','audio','video',
'canvas',
];
const excludeClasses = [
'highlight',
'katex',
'editor',
]
const excludeClassesRegexi = new RegExp(excludeClasses.join('|'),'i');
const linkRegex = /^https?:\/\//;
function isEnglishContent() {
try {
const title = document.title || '';
const firstParagraphs = Array.from(document.getElementsByTagName('p'))
.slice(0, 3)
.map(p => p.textContent)
.join(' ');
const textToAnalyze = (title + ' ' + firstParagraphs)
.slice(0, config.charsToCheck)
.replace(/\s+/g, ' ')
.trim();
if (!textToAnalyze) return true;
const asciiChars = textToAnalyze.replace(/[\s\.,\-_'"!?()]/g, '')
.split('')
.filter(char => char.charCodeAt(0) <= 127).length;
const totalChars = textToAnalyze.replace(/[\s\.,\-_'"!?()]/g, '').length;
if (totalChars === 0) return true;
const asciiRatio = asciiChars / totalChars;
console.log('🈂️ ASCII Ratio:', asciiRatio.toFixed(2));
return asciiRatio >= config.minAsciiRatio;
} catch (e) {
console.error('Error checking content language:', e);
return true;
}
}
const gather = el=>{
let textEls = [];
el.childNodes.forEach(el=>{
if(el.isEnB) return;
if(el.originEl) return;
if(el.nodeType === 3){
textEls.push(el);
}else if(el.childNodes){
const nodeName = el.nodeName.toLowerCase();
if(excludeNodeNames.includes(nodeName)) return;
if(config.skipLinks){
if(nodeName === 'a'){
if(linkRegex.test(el.textContent)) return;
}
}
if(el.getAttribute){
if(el.getAttribute('class') && excludeClassesRegexi.test(el.getAttribute('class'))) return;
if(el.getAttribute('contentEditable') === 'true') return;
}
textEls = textEls.concat(gather(el))
}
})
return textEls;
};
const engRegex = /[a-zA-Z][a-z]+/;
const engRegexg = new RegExp(engRegex,'g');
const getHalfLength = word=>{
if (word.length < config.minWordLength) return 0;
let halfLength;
if(/ing$/.test(word)){
halfLength = word.length - 3;
}else if(word.length<5){
halfLength = Math.floor(word.length * config.scale);
}else{
halfLength = Math.ceil(word.length * config.scale);
}
if(config.maxBionicLength){
halfLength = Math.min(halfLength, config.maxBionicLength)
}
return halfLength;
}
let count = 0;
const saccadeRound = config.saccade + 1;
const saccadeCounter = _=>{
return ++count % saccadeRound === 0;
};
const replaceTextByEl = el=>{
const text = el.data;
if(!engRegex.test(text))return;
if(!el.replaceEl){
const spanEl = document.createElement('bionic');
spanEl.isEnB = true;
spanEl.innerHTML = text.replace(/[\u00A0-\u9999<>\&]/g, w=>'&#'+w.charCodeAt(0)+';')
.replace(engRegexg,word=>{
if(word.length < config.minWordLength) return word;
if(config.skipWords && config.excludeWords.includes(word)) return word;
if(config.saccade && !saccadeCounter()) return word;
const halfLength = getHalfLength(word);
if (halfLength === 0) return word;
return '<bbb>'+word.substr(0,halfLength)+'</bbb>'+word.substr(halfLength);
});
spanEl.originEl = el;
el.replaceEl = spanEl;
}
el.after(el.replaceEl);
el.remove();
};
const replaceTextSymbolModeByEl = el=>{
const text = el.data;
if(!engRegex.test(text))return;
// For symbol mode, we can still use textContent since we're not creating HTML
el.data = text.replace(engRegexg,word=>{
if(word.length < config.minWordLength) return word;
if(config.skipWords && config.excludeWords.includes(word)) return word;
if(config.saccade && !saccadeCounter()) return word;
const halfLength = getHalfLength(word);
if (halfLength === 0) return word;
const a = word.substr(0,halfLength).
replace(/[a-z]/g,w=>String.fromCharCode(55349,w.charCodeAt(0)+56717)).
replace(/[A-Z]/g,w=>String.fromCharCode(55349,w.charCodeAt(0)+56723));
const b = word.substr(halfLength).
replace(/[a-z]/g,w=> String.fromCharCode(55349,w.charCodeAt(0)+56665)).
replace(/[A-Z]/g,w=> String.fromCharCode(55349,w.charCodeAt(0)+56671));
return a + b;
})
}
const bionic = _=>{
if (!isEnglishContent()) {
console.log('🈂️ Non-English content detected, skipping bionic reading');
return;
}
const textEls = gather(body);
isBionic = true;
count = 0;
let replaceFunc = config.symbolMode ? replaceTextSymbolModeByEl : replaceTextByEl;
textEls.forEach(replaceFunc);
document.head.appendChild(styleEl);
}
const lazy = (func,ms = 15)=> {
return _=>{
clearTimeout(func.T)
func.T = setTimeout(func,ms)
}
};
const listenerFunc = lazy(_=>{
if(!isBionic) return;
bionic();
});
if(window.MutationObserver){
(new MutationObserver(listenerFunc)).observe(body,{
childList: true,
subtree: true,
attributes: true,
});
}else{
const {open,send} = XMLHttpRequest.prototype;
XMLHttpRequest.prototype.open = function(){
this.addEventListener('load',listenerFunc);
return open.apply(this,arguments);
};
document.addEventListener('DOMContentLoaded',listenerFunc);
document.addEventListener('DOMNodeInserted',listenerFunc);
}
if(config.autoBionic){
window.addEventListener('load',bionic);
}
const revoke = _=>{
const els = [...document.querySelectorAll('bionic')];
els.forEach(el=>{
const {originEl} = el;
if(!originEl) return;
el.after(originEl);
el.remove();
})
isBionic = false;
};
document.addEventListener('keydown',e=>{
const { ctrlKey , metaKey, key } = e;
if( ctrlKey || metaKey ){
if(key === 'b'){
if(isBionic){
revoke();
}else{
bionic();
}
}
}
})