网页英文前部加粗脚本 Ctrl + B / ⌘ + B 开启关闭
// ==UserScript==
// @name 英文前部加粗
// @namespace https://github.com/itorr/bionic-reading.user.js
// @version 0.8.3
// @description 网页英文前部加粗脚本 Ctrl + B / ⌘ + B 开启关闭
// @author itorr
// @match *://*/*
// @grant none
// @license MIT
// @run-at document-idle
// @supportURL https://github.com/itorr/bionic-reading.user.js/issues
// ==/UserScript==
let isBionic = false;
const enCodeHTML = s=> s.replace(/[\u00A0-\u9999<>\&]/g,w=>'&#'+w.charCodeAt(0)+';');
let body = document.body;
if(/weibo/.test(location.hostname)){
const wbMainEl = document.querySelector('.WB_main');
if(wbMainEl) body = wbMainEl;
// 修复旧版微博自定义样式失效 bug
const customStyleEl = document.querySelector('#custom_style');
if(customStyleEl) customStyleEl.removeAttribute('id');
}
const styleEl = document.createElement('style');
styleEl.innerHTML = `
bbb{
font-weight:bold;
opacity: 1;
}
html[data-site="greasyfork"] a bionic{
pointer-events: none;
}
`;
document.documentElement.setAttribute('data-site',location.hostname.replace(/\.\w+$|www\./ig,''))
const excludeTagNames = [
'script','style','xmp',
'input','textarea','select',
'pre','code',
'h1','h2','h3','h4',
'b','strong'
].map(a=>a.toUpperCase());
const gather = el=>{
let textEls = [];
el.childNodes.forEach(el=>{
if(el.isEnB) return;
if(el.originEl) return;
if(el.nodeType === 3){
textEls.push(el);
}else if(el.childNodes){
if(excludeTagNames.includes(el.tagName)) return;
// Skip DIV Code Frame
if(el.getAttribute && el.getAttribute('class') && el.getAttribute('class').includes('highlight')) return;
textEls = textEls.concat(gather(el))
}
})
return textEls;
};
const engRegex = /[a-zA-Z][a-z]+/;
const engRegexg = /[a-zA-Z][a-z]+/g;
let replaceTextByEl = el=>{
const text = el.data;
if(!engRegex.test(text))return;
if(!el.replaceEl){
const spanEl = document.createElement('bionic');
spanEl.isEnB = true;
spanEl.innerHTML = enCodeHTML(text).replace(engRegexg,word=>{
let halfLength;
if(/ing$/.test(word)){
halfLength = word.length - 3;
}else if(word.length<5){
halfLength = Math.floor(word.length/2);
}else{
halfLength = Math.ceil(word.length/2);
}
return '<bbb>'+word.substr(0,halfLength)+'</bbb>'+word.substr(halfLength)
})
spanEl.originEl = el;
el.replaceEl = spanEl;
}
el.after(el.replaceEl);
el.remove();
};
// replaceTextByEl = el=>{
// el.data = el.data.replace(engRegexg,word=>{
// let halfLength;
// if(/ing$/.test(word)){
// halfLength = word.length - 3;
// }else if(word.length<5){
// halfLength = Math.floor(word.length/2);
// }else{
// halfLength = Math.ceil(word.length/2);
// }
// const a = word.substr(0,halfLength).
// replace(/[a-z]/g,w=>'\uD835' + String.fromCharCode(w.charCodeAt(0)+56717)).
// replace(/[A-Z]/g,w=>'\uD835' + String.fromCharCode(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 = _=>{
const textEls = gather(body);
isBionic = true;
textEls.forEach(replaceTextByEl);
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);
}
window.addEventListener('load',bionic);
// document.addEventListener('click',listenerFunc);
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('mousedown',revoke);
const redo = _=>{
const textEls = gather(body);
textEls.forEach(el=>{
const { replaceEl } = el;
if(!replaceEl) return;
el.after(replaceEl);
el.remove();
})
isBionic = false;
};
document.addEventListener('keydown',e=>{
const { ctrlKey , metaKey, key } = e;
if( ctrlKey || metaKey ){
if(key === 'b'){
if(isBionic){
revoke();
}else{
bionic();
}
}
}
})
// document.addEventListener('mouseup',redo);