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洛谷犇犇 Better

增加洛谷犇犇回复 Markdown，防止错误/失效 @，优化删除行为，增加 Sweetalert（请先开启学术模式，不影响正常使用）

目前为 2024-08-30 提交的版本。查看 最新版本。

// ==UserScript==
// @name         洛谷犇犇 Better
// @namespace    http://tampermonkey.net/
// @version      3.8
// @description  增加洛谷犇犇回复 Markdown，防止错误/失效 @，优化删除行为，增加 Sweetalert（请先开启学术模式，不影响正常使用）
// @author       nr0728 & _s_z_y_
// @match        https://www.luogu.com.cn/
// @match        https://www.luogu.com.cn/discuss
// @match        https://www.luogu.com.cn/discuss?forum=*
// @license      MIT
// @grant        none
// @require      https://cdn.jsdelivr.net/npm/sweetalert2@11/dist/sweetalert2.all.min.js
// ==/UserScript==
(function(){'use strict';if(window.location.href==='https://www.luogu.com.cn/'){let targetDiv=document.querySelector('.am-u-lg-9.am-u-md-8.lg-index-benben.lg-right');if(targetDiv){let newDiv=document.createElement('div');newDiv.className='lg-article';newDiv.innerHTML=`<h2>有什么新鲜事告诉大家</h2><div class="am-form-group am-form"><textarea rows="3" id="feed-content"></textarea></div><button class="am-btn am-btn-danger am-btn-sm" id="feed-submit">　发射犇犇！　</button>`;targetDiv.appendChild(newDiv);let navDiv=document.createElement('div');navDiv.className='lg-article';navDiv.innerHTML=`<ul class="am-nav am-nav-pills am-nav-justify" id="home-center-nav"><li class="feed-selector am-active" data-mode="watching"><a style="cursor: pointer">我关注的</a></li><li class="feed-selector" data-mode="my"><a style="cursor: pointer">我发布的</a></li></ul>`;targetDiv.appendChild(navDiv);let feedList=document.createElement('ul');feedList.className='am-comments-list am-comments-list-flip';feedList.id='feed';targetDiv.appendChild(feedList);document.getElementById('feed-submit').addEventListener('click',function(){let content=document.getElementById('feed-content').value;$.ajax({type:"POST",url:'https://www.luogu.com.cn/api/feed/postBenben',data:{content:content},success:function(response){Sweetalert2.fire({icon:'success',title:'发送成功',toast:true,position:'top-end',showConfirmButton:false,timer:1500,timerProgressBar:true});document.getElementById('feed-content').value='';},error:function(error){Sweetalert2.fire({icon:'error',title:'发送失败，请稍后再试！',toast:true,position:'top-end',showConfirmButton:false,timer:1500,timerProgressBar:true});}});});let currentPage=1;let stopLoadingMore=false;document.querySelectorAll('.feed-selector').forEach(function(elem){elem.addEventListener('click',function(){let mode=this.getAttribute('data-mode');currentPage=1;stopLoadingMore=false;let url=mode==='watching'?`https://www.luogu.com.cn/feed/watching?page=${currentPage}`:`https://www.luogu.com.cn/feed/my?page=${currentPage}`;document.querySelectorAll('.feed-selector').forEach(function(item){item.classList.remove('am-active');});this.classList.add('am-active');loadFeedContent(url,true);});});document.querySelector('.feed-selector[data-mode="watching"]').click();function loadFeedContent(url,isNewLoad){fetch(url).then(response=>response.text()).then(html=>{let parser=new DOMParser();let doc=parser.parseFromString(html,'text/html');let content=doc.querySelector('body').innerHTML;if(isNewLoad){feedList.innerHTML=content;}else{feedList.innerHTML+=content;}if(content.includes('<h2>没有更多动态了</h2>')){stopLoadingMore=true;}let oldMore=document.getElementById('feed-more');if(oldMore){oldMore.remove();}if(!stopLoadingMore){addLoadMoreButton(url);}bindFeedButtons();}).catch(error=>console.error('Error loading feed:',error));}function bindFeedButtons(){document.querySelectorAll('a[name="feed-delete"]').forEach(function(deleteButton){deleteButton.addEventListener('click',function(){let feedId=this.getAttribute('data-feed-id');$.post(`/api/feed/delete/${feedId}`,function(response){Sweetalert2.fire({icon:'success',title:'删除成功',toast:true,position:'top-end',showConfirmButton:false,timer:1500,timerProgressBar:true});deleteButton.closest('.am-comment').remove();}).fail(function(){Sweetalert2.fire({icon:'error',title:'删除失败，请稍后再试！',toast:true,position:'top-end',showConfirmButton:false,timer:1500,timerProgressBar:true});});});});document.querySelectorAll('a[name="feed-reply"]').forEach(function(replyButton){replyButton.addEventListener('click',function(){let commentElement=this.closest('.am-comment').querySelector('.feed-comment');let headerElement=this.closest('.am-comment').querySelector('.am-comment-meta .feed-username a');let username=headerElement?headerElement.textContent.trim():'unknown';let rawHTML=commentElement.innerHTML;let markdown=convertHtmlToMarkdown(rawHTML);let textarea=document.getElementById('feed-content');textarea.value=`|| @${username} : ${markdown}`;});});}function addLoadMoreButton(baseUrl){let moreDiv=document.createElement('div');moreDiv.className='lg-article am-text-center';moreDiv.id='feed-more';moreDiv.innerHTML=`<a>点击查看更多...</a>`;targetDiv.appendChild(moreDiv);moreDiv.addEventListener('click',function(){currentPage++;let nextUrl=baseUrl.replace(/page=\d+/,'page='+currentPage);loadFeedContent(nextUrl,false);});}function convertHtmlToMarkdown(html){let parser=new DOMParser();let doc=parser.parseFromString(html,'text/html');let traverseNode=function(node){if(node.nodeType===Node.TEXT_NODE){return node.textContent;}else if(node.nodeType===Node.ELEMENT_NODE){switch(node.tagName.toLowerCase()){case'strong':{return`__${Array.from(node.childNodes).map(traverseNode).join('')}__`;}case'em':{return`_${Array.from(node.childNodes).map(traverseNode).join('')}_`;}case'del':{return`~~${Array.from(node.childNodes).map(traverseNode).join('')}~~`;}case'a':{let href=node.getAttribute('href');let text=Array.from(node.childNodes).map(traverseNode).join('');if(node.previousSibling&&node.previousSibling.nodeType===Node.TEXT_NODE&&node.previousSibling.textContent.endsWith('@')){return text;}if(text===href){return`<${href}>`;}return`[${text}](${href})`;}case'code':{if(node.parentElement&&node.parentElement.tagName.toLowerCase()==='pre'){return Array.from(node.childNodes).map(traverseNode).join('');}return`\`${Array.from(node.childNodes).map(traverseNode).join('')}\``;}case'pre':{let codeContent=Array.from(node.childNodes).map(traverseNode).join('');return`\n\`\`\`\n${codeContent}\n\`\`\``;}case'h1':{return`\n# ${Array.from(node.childNodes).map(traverseNode).join('')}\n`;}case'h2':{return`\n## ${Array.from(node.childNodes).map(traverseNode).join('')}\n`;}case'h3':{return`\n### ${Array.from(node.childNodes).map(traverseNode).join('')}\n`;}case'h4':{return`\n#### ${Array.from(node.childNodes).map(traverseNode).join('')}\n`;}case'h5':{return`\n##### ${Array.from(node.childNodes).map(traverseNode).join('')}\n`;}case'h6':{return`\n###### ${Array.from(node.childNodes).map(traverseNode).join('')}\n`;}case'hr':{return`---`;}case'ul':{return`${Array.from(node.childNodes).map(traverseNode).join('').trim()}`;}case'ol':{return`${Array.from(node.childNodes).map(traverseNode).join('').trim()}`;}case'li':{if(node.parentElement.tagName.toLowerCase()==='ol'){let index=Array.from(node.parentElement.children).indexOf(node)+1;return`${index}. ${Array.from(node.childNodes).map(traverseNode).join('').trim()}`;}else{return`- ${Array.from(node.childNodes).map(traverseNode).join('').trim()}`;}}case'quote':{let quoteContent=Array.from(node.childNodes).map(traverseNode).join('').trim();return`\n> ${quoteContent.trim().replace(/\n/g,'\n> ')}\n`;}case'blockquote':{let blockquoteContent=Array.from(node.childNodes).map(traverseNode).join('').trim();return`\n> ${blockquoteContent.trim().replace(/\n/g,'\n> ')}\n`;}case'p':{return`${Array.from(node.childNodes).map(traverseNode).join('').trim()}\n`;}case'br':{return`\n`;}case'img':{let src=node.getAttribute('src');let alt=node.getAttribute('alt')||'';return`![${alt}](${src})`;}default:{return Array.from(node.childNodes).map(traverseNode).join('');}}}return'';};return'\n'+Array.from(doc.body.childNodes).map(traverseNode).join('')+'\n';}}}if(window.location.href.startsWith('https://www.luogu.com.cn/discuss')){setInterval(function(){let sectionDiv=document.querySelector('div.section');let forum=new URLSearchParams(window.location.search).get('forum');let targetElement=sectionDiv.querySelector('div.row-item');if(sectionDiv&&forum!=='relevantaffairs'){let existingLink=sectionDiv.querySelector('a[href="/discuss?forum=relevantaffairs"]');if(!existingLink){let newLink=document.createElement('a');newLink.href='/discuss?forum=relevantaffairs';newLink.className='forum-container section-item row-item router-link-exact-active router-link-active color-default link';newLink.title='灌水区';newLink.style='--forum-color: #52c41a; color: var(--forum-color);';newLink.innerHTML=`<svg data-v-d6def288 aria-hidden="true" focusable="false" data-prefix="fas" data-icon="square" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="forum-icon svg-inline--fa fa-square"><path fill="currentColor" d="M0 96C0 60.7 28.7 32 64 32H384c35.3 0 64 28.7 64 64V416c0 35.3-28.7 64-64 64H64c-35.3 0-64-28.7-64-64V96z"></path></svg><span data-v-d6def288 class="forum-name">灌水区</span>`;sectionDiv.insertBefore(newLink,targetElement);}}},100);}})();

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