[JavaScript] 纯文本查看 复制代码
// ==UserScript==
// @id 763221847@qq.com.com
// @namespace https://gitee.com/isteng/
// @name markdown_preview
// @name:zh-CN SUMMARY
// @version 0.12
// @description 预览本地Markdown文件
// @author Teng
// @match file:///*/*.md*
// @match file:///*/*.MD*
// @exclude file:///*/SUMMARY.MD*
// @exclude file:///*/SUMMARY.md*
// @grant None
// ==/UserScript==
// console.log(tochtml) // 输出到控制台
// -------------------- markdown转HTML代码 --------------------
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// tocs=document.body.firstChild.textContent.split("\n")
// -------------------- 定义变量 --------------------
var markcss;var markcss2;var content;var a;var i;
// -------------------- 脚本开始 --------------------
// 判断打开的文件是否本地markdown
if (document.body.firstChild.nodeName == 'PRE'){
// 添加CSS样式
document.head.innerHTML=document.head.innerHTML+'<style type="text/css">'+markcss+'</style>'+'<style type="text/css">'+markcss2+'</style>';
// 若窗口大小改变则自动更改显示
document.body.setAttribute("onresize",'document.getElementById("container").style.height=window.innerHeight-20;document.getElementById("container").style.width=window.innerWidth-20;document.getElementById("content").style.width=window.innerWidth-232');
// -------------------- 初始化body --------------------
// 或者使用frameset(document.body.parentElement.innerHTML能修改整个HTML)
document.body.innerHTML='<iframe name="MarkdownIframe" id="MarkdownView" src="SUMMARY.md" style="display:none"></iframe>\
<div id="container" style="border:1px solid #E0E0E0;height:'+(window.innerHeight-20).toString()+'px;width:'+(window.innerWidth-20).toString()+'px;">\
<div id="toc" style="display:block;border-right:1px solid #E0E0E0;float:left;width:200px;height:100%;overflow-x:auto;overflow-y:auto;white-space:nowrap;">Loading...</div>\
<div id="Toc3" style="display:none;border-right:1px solid #E0E0E0;float:left;width:200px;height:100%;overflow-x:auto;overflow-y:auto;white-space:nowrap;">Loading...</div>\
<div id="content" class="markdown_views" style="float:left;overflow-y:auto;height:100%;width:'+(window.innerWidth-232).toString()+'px;padding-left:10px;">'+marked(document.body.firstChild.textContent)+'</div>\
<div id="Toc2" style="position:absolute;left:190;top:3px;px;width:40px;height:20px;border-radius:0 0 40px 40px;background:#E0E0E0;text-align:center;color:#FFF">TOC</div>\
</div>'
// -------------------- Toc2鼠标点击事件 --------------------
// 循环切换书籍目录和文章目录的显示
document.getElementById("Toc2").setAttribute("onclick",'if( document.getElementById("toc").style.display=="block"){document.getElementById("Toc3").style.display="block";document.getElementById("toc").style.display="none"}else{document.getElementById("Toc3").style.display="none";document.getElementById("toc").style.display="block"}');
// -------------------- markdown视图内所有h标签转为目录 --------------------
a = document.getElementById("content").querySelectorAll("h1,h2,h3,h4,h5,h6")
txt=""
for(i=0,len=a.length;i<len;i++){
nunu="  ".repeat(Number(a[i].tagName.slice(-1)) - 1);
a[i].id=a[i].textContent;
txt=txt+"<a href='#"+a[i].textContent +"'>"+nunu+a[i].textContent+"</a><br>";}
document.querySelector("#Toc3").innerHTML=txt
// --------------------等待ifarm(MarkdownView)加载完成之后的事件--------------------
document.getElementById("MarkdownView").onload=function(){
// -------------------- 定义变量 --------------------
var MarkdownView;var a;var i;var len;var txt;var nunu;
if(document.getElementById("toc").innerText=="Loading..."){
document.getElementById("toc").innerHTML=marked(parent.document.getElementById("MarkdownView").contentDocument.body.firstChild.textContent);
// 删除SUMMARY的标题
document.getElementById("toc").removeChild(document.getElementById('summary'));
// -------------------- 设置所有SUMMARY目录超链接用iframe方式打开 --------------------
// 此设置首先需要页面内有iframe标签,且标签具有name属性
a=document.getElementById("toc").querySelectorAll('a');
for (i in a){a[i].target="MarkdownIframe"};
}
else{
// 获取iframe的内容
MarkdownView=parent.document.getElementById("MarkdownView").contentDocument.body.firstChild.textContent;
// 显示iframe的内容
document.querySelector('.markdown_views').innerHTML=marked(MarkdownView)
}
// -------------------- markdown视图内的a标签链接打开方式转为新窗口打开 --------------------
a = document.querySelectorAll(".markdown_views a");
for (i=0, len=a.length; i<len; i++) {a[i].target = "_blank"};
// -------------------- 释放变量 --------------------
delete MarkdownView;delete a;delete nunu;delete txt;delete i;delete len;
};
}
// -------------------- 释放变量 --------------------
delete markcss;delete markcss2;delete content;delete a;delete i;
发表于 2018-8-3 18:02
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发表于 2018-8-3 19:03
