// ==UserScript==
// @name         知乎下载器
// @namespace    http://howardzhangdqs.eu.org/
// @source       
// @version      0.1.2
// @description  一键复制知乎文章、回答为Markdown
// @author       HowardZhangdqs
// @match        *://*.zhihu.com/*
// @license      MIT
// @icon         https://static.zhihu.com/heifetz/favicon.ico
// @grant        none
// @downloadURL none
// ==/UserScript==

(()=>{"use strict";function e(){for(var e="复制为Markdown",n=function(n){if(n.children[0].classList.contains("zhihucopier-button"))return"continue";var c=function(e){for(var n=[],a=0;a<e.length;a++){var c=e[a];switch(c.tagName.toLowerCase()){case"h2":n.push({type:t.H1,text:c.textContent,dom:c});break;case"h3":n.push({type:t.H2,text:c.textContent,dom:c});break;case"div":c.classList.contains("highlight")&&n.push({type:t.Code,content:c.textContent,language:c.querySelector("pre > code").classList.value.slice(9),dom:c});break;case"blockquote":n.push({type:t.Blockquote,content:o(c),dom:c});break;case"figure":var r=c.querySelector("img").getAttribute("data-actualsrc");r&&n.push({type:t.Figure,src:r,dom:c});break;case"ul":var s=Array.from(c.querySelectorAll("li"));n.push({type:t.UList,content:s.map((function(e){return o(e)})),dom:c});break;case"ol":s=Array.from(c.querySelectorAll("li")),n.push({type:t.Olist,content:s.map((function(e){return o(e)})),dom:c});break;case"p":n.push({type:t.Text,content:o(c),dom:c});break;case"hr":n.push({type:t.HR,dom:c})}}return n}(n.childNodes),r=function(e){for(var n=[],o=0;o<e.length;o++){var c=e[o];switch(c.type){case t.Figure:n.push("![](".concat(c.src,")"));break;case t.Code:n.push("```".concat(c.language||"","\n").concat(c.content,"```"));break;case t.UList:n.push(c.content.map((function(e){return"- ".concat(a(e))})).join("\n"));break;case t.Olist:n.push(c.content.map((function(e,t){return"".concat(t+1,". ").concat(a(e))})).join("\n"));break;case t.H1:n.push("# ".concat(c.text));break;case t.H2:n.push("## ".concat(c.text));break;case t.Blockquote:n.push(a(c.content,"> "));break;case t.Text:n.push(a(c.content));break;case t.HR:n.push("\n---\n")}}return n}(c),s=((c=document.createElement("button")).classList.add("zhihucopier-button"),c.innerText=e,c.style.right="0",c.style.top="-2em",c.style.zIndex="999",c.style.width="150px",c.style.height="2em",c.style.backgroundColor="rgba(0,0,0,0.3)",c.style.color="white",c.style.border="white 1px solid",c.style.outline="none",c.style.cursor="pointer",c.style.borderRadius="1em 0 0 1em",c.style.margin="0 0 1em 0",c);s.style.borderRadius="1em",n.prepend(s),s.addEventListener("click",(function(){try{navigator.clipboard.writeText(r.join("\n\n")),s.innerHTML="复制成功✅",setTimeout((function(){s.innerHTML=e}),1e3)}catch(t){s.innerHTML="发生未知错误<br>请联系开发者",s.style.height="4em",setTimeout((function(){s.style.height="2em",s.innerHTML=e}),1e3)}}))},c=0,r=Array.from(document.querySelectorAll(".RichText"));c<r.length;c++)n(r[c])}(n=t=t||{})[n.H1=0]="H1",n[n.H2=1]="H2",n[n.Figure=2]="Figure",n[n.Text=3]="Text",n[n.Bold=4]="Bold",n[n.Link=5]="Link",n[n.PlainText=6]="PlainText",n[n.Italic=7]="Italic",n[n.UList=8]="UList",n[n.Olist=9]="Olist",n[n.BR=10]="BR",n[n.HR=11]="HR",n[n.Blockquote=12]="Blockquote",n[n.Code=13]="Code",n[n.InlineCode=14]="InlineCode",n[n.InlineMath=15]="InlineMath";var t,n,o=function(e){if("string"==typeof e)return[{type:t.PlainText,text:e}];for(var n=[],a=0,c=Array.from(e.childNodes);a<c.length;a++){var r=c[a];if(r.nodeType==r.TEXT_NODE)n.push({type:t.PlainText,text:r.textContent,dom:r});else{var s=r;switch(s.tagName.toLowerCase()){case"b":n.push({type:t.Bold,content:o(s),dom:s});break;case"i":n.push({type:t.Italic,content:o(s),dom:s});break;case"br":n.push({type:t.BR,dom:s});break;case"code":n.push({type:t.InlineCode,dom:s});case"span":s.classList.contains("ztext-math")&&n.push({type:t.InlineMath,content:s.getAttribute("data-tex"),dom:s})}}}return n},a=function(e,n){void 0===n&&(n="");for(var o="",c=0,r=e;c<r.length;c++){var s=r[c];switch(s.type){case t.Bold:o+="**".concat(a(s.content),"**");break;case t.Italic:o+="*".concat(a(s.content),"*");break;case t.Link:o+="[".concat(s.text,"](").concat(s.href,")");break;case t.PlainText:o+=s.text;break;case t.BR:o+="\n"+n;break;case t.InlineCode:o+="`".concat(s.content,"`");break;case t.InlineMath:o+="$".concat(s.content,"$")}}return n+o};setTimeout(e,100),document.addEventListener("scroll",(function(){e()}))})();