52pojie主题筛选工具

52pojie主题页面增强,可以对主题列表进行筛选和排序

このスクリプトの質問や評価の投稿はこちら通報はこちらへお寄せください。
// ==UserScript==
// @name         52pojie主题筛选工具
// @namespace    http://tampermonkey.net/
// @version      0.0.1-b20241121
// @description  52pojie主题页面增强,可以对主题列表进行筛选和排序
// @author       wonder2018
// @license      CC-BY-4.0 license
// @match        https://www.52pojie.cn/forum*
// @icon         http://52pojie.cn/favicon.ico
// @grant        GM_addStyle
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_registerMenuCommand
// @grant        GM_unregisterMenuCommand
// ==/UserScript==

;(function () {
  'use strict'
  // #region 初始化
  const tableSelector = `div#threadlist table`
  const appendSelector = `ul#thread_types`
  const dftOrderAttrName = 'pj-dft-order'
  const sideBtnWrapId = `filterBox`
  const sideBtnWrapSelector = `ul#${sideBtnWrapId}`
  const allHideTypes = new Set()
  const filterBtnColor = '#66ccff'
  const showBtnColor = 'goldenrod'
  /** @type {HTMLLIElement[]} */
  const btnList = []
  const availableTools = [
    { switchName: '移除已解决', switchKey: 'useFilterBySolved', init: filterBySolved, menuId: null },
    { switchName: '移除回复多于x', switchKey: 'useFilterByReplyGt', init: filterByReplyGt, menuId: null },
    { switchName: '移除CB少于x', switchKey: 'useFilterByCBLt', init: filterByCBLt, menuId: null },
    { switchName: '正则过滤', switchKey: 'useFilterByRegExp', init: filterByRegExp, menuId: null },
    { switchName: '按创建时间排序', switchKey: 'useSortByCreateTime', init: sortByCreateTime, menuId: null },
  ]
  const dftPJOpts = availableTools.reduce((p, i) => ((p[i.switchKey] = true), p), { showPos: 2 })
  dftPJOpts.useFilterByRegExp = false
  let togglePosMenuId = null
  // #endregion 初始化

  // #region 样式

  // #region 样式 > 基础样式
  GM_addStyle(`
    .pj-btn {
      border-radius: 5px;
      color: #fff;
      cursor: pointer;
    }
    .pj-btn>input.pj-ctl{
      width:2em;
      height:1em;
      pointer-events:all;
      text-align:center;
    }
  `)

  // #endregion 样式 > 基础样式

  // #region 样式 > fixed mode box
  GM_addStyle(`
    ${sideBtnWrapSelector} {
      position: fixed;
      top: 50%;
      right: 0;
      padding: 40px 20px;
      flex-direction: row;
      z-index: 99999;
      display: flex;
      flex-wrap: wrap;
      width: 295px;
      transform: translate(95%, -50%);
      transition: .3s;
      transition-delay: .3s;
    }

    ${sideBtnWrapSelector}:hover{
      transform: translate(0, -50%);
      transition-delay: 0s;
    }

    ${sideBtnWrapSelector}::after{
      content: '<';
      position: absolute;
      display: block;
      width: 30px;
      height: 50px;
      line-height: 50px;
      text-align: center;
      background-color: #66ccff;
      top: 0;
      bottom: 0;
      margin: auto;
      left: -40px;
      margin-left: 20px;
      font-weight: bold;
      color: rgb(0, 102, 255);
      border-radius: 5px;
    }

    ${sideBtnWrapSelector}>li {
      margin: 5px 0;
      flex-grow: 1;
      flex-basis: 40%;
    }
    ${sideBtnWrapSelector}>li>a {
      padding: 10px;
      border-color: rgb(0,102,255);
      border-radius: 5px;
      background-color: white;
      color: rgb(0,102,255);
      margin-right: 10px;
      box-shadow: rgb(207,207,207) 1px 1px 9px 3px;
      text-decoration: none;
      display: block;
      transition: .3s;
    }
    ${sideBtnWrapSelector}>li>a:hover {
      box-shadow: #888 1px 1px 9px 3px;
    }
    ${sideBtnWrapSelector}>li>a>input {
      float:right;
    }
  `)
  // #endregion > fixed mode box

  // #endregion 样式

  // #region 菜单
  const OPTION_KEY = 'PJ_FILTER_OPT'

  const showPosList = ['移除按钮', '列表头部', '窗口右侧']

  /** @type {typeof dftPJOpts} */
  const options = JSON.parse(GM_getValue(OPTION_KEY, JSON.stringify(dftPJOpts)))
  function saveOpt() {
    regMenu()
    GM_setValue(OPTION_KEY, JSON.stringify(options))
  }

  function toggleBtnPos(type = options.showPos) {
    options.showPos = (type || 0) % 3
    saveOpt()
    if (options.showPos === 0) return removeAllBtn()
    if (options.showPos === 1) return showBtnTableHead()
    if (options.showPos === 2) return showBtnFixed()
  }
  /** @param {(typeof availableTools)[number]} type */
  function togglePJToolUse(type) {
    if (type.switchKey === 'useFilterByRegExp') return changeRegExpFilter(type)
    options[type.switchKey] = !options[type.switchKey]
    saveOpt()
    initPJTools()
  }

  /** @param {(typeof availableTools)[number]} type */
  function changeRegExpFilter(type) {
    if (type.switchKey !== 'useFilterByRegExp') return
    let reg = prompt('输入正则表达式(留空点击确定可关闭此功能)', options[type.switchKey] || '')
    // 点击取消时不做任何操作
    if (typeof reg !== 'string') return
    reg = reg.trim()
    const regObj = strToRegExp(reg.trim())
    if (!(regObj instanceof RegExp) && regObj != null) return alert(`输入的正则表达式有误请检查:${reg}`)
    options[type.switchKey] = !!regObj && `/${regObj.source}/${regObj.flags}`
    saveOpt()
    initPJTools()
  }

  function initPJTools() {
    loadBtnByOpts()
    toggleBtnPos(options.showPos)
  }

  function regToggleBtnPosMenu() {
    if (togglePosMenuId != null) GM_unregisterMenuCommand(togglePosMenuId)
    togglePosMenuId = GM_registerMenuCommand(`切换按钮位置:[${showPosList[options.showPos]}]`, () => toggleBtnPos(options.showPos + 1))
  }

  /** @param {(typeof availableTools)[number]} type */
  function regToolsMenu(type) {
    if (type.switchKey === 'useFilterByRegExp') return regRegExpFilterMenu(type)
    if (type.menuId != null) GM_unregisterMenuCommand(type.menuId)
    type.menuId = GM_registerMenuCommand(`${type.switchName}[${options[type.switchKey] ? '开' : '关'}]`, () => togglePJToolUse(type))
  }

  /** @param {(typeof availableTools)[number]} type */
  function regRegExpFilterMenu(type) {
    if (type.switchKey !== 'useFilterByRegExp') return null
    if (type.menuId != null) GM_unregisterMenuCommand(type.menuId)
    type.menuId = GM_registerMenuCommand(`${type.switchName}[${options[type.switchKey] || '关'}]`, () => togglePJToolUse(type))
  }

  function regMenu() {
    regToggleBtnPosMenu()
    availableTools.forEach(i => regToolsMenu(i))
  }
  // #endregion 菜单

  // #region utils
  function createBtn(text, color) {
    const btn = document.createElement('li')
    btn.classList.add('pj-btn-wrap')
    btn.innerHTML = `<a class="pj-btn" style="background-color:${color};">${text}</a>`
    btnList.push(btn)
    return btn
  }

  /** 处理还原隐藏帖子事件 */
  function recoverByType(type) {
    /** @type {HTMLTableSectionElement[]} */
    const lines = [...document.querySelectorAll(`${tableSelector}>tbody[id*=normalthread_][${type}]`)]
    lines.forEach(i => {
      i.setAttribute(type, false)
      if ([...allHideTypes].every(t => !i.getAttribute(t) || i.getAttribute(t) == 'false')) {
        i.style.display = ''
      }
    })
  }

  /** 根据配置项初始化所有按钮 */
  function loadBtnByOpts() {
    // 移除已添加的按钮,和附带元素(比如fixed模式下的按钮容器)
    removeAllBtn()
    // 确保所有按钮都被移除再清空数组
    btnList.forEach(i => i.remove())
    btnList.length = 0
    availableTools.filter(i => options[i.switchKey]).forEach(i => i.init())
  }

  /** 按钮显示到列表头部 */
  function removeAllBtn() {
    btnList.forEach(i => i.remove())
    const sideBtnWrap = document.querySelector(sideBtnWrapSelector)
    sideBtnWrap && sideBtnWrap.remove()
  }

  /** 按钮显示到列表头部 */
  function showBtnTableHead() {
    const appendTarget = document.querySelector(appendSelector)
    if (!appendTarget) return console.warn('不是论坛列表页,不添加按钮。')
    btnList.forEach(i => appendTarget.appendChild(i))
    const sideBtnWrap = document.querySelector(sideBtnWrapSelector)
    sideBtnWrap && sideBtnWrap.remove()
  }

  /** 按钮固定在窗口右侧 */
  function showBtnFixed() {
    if (!btnList.length) return
    const filterButtonBox = document.createElement('ul')
    filterButtonBox.id = sideBtnWrapId
    btnList.forEach(i => filterButtonBox.appendChild(i))
    document.body.appendChild(filterButtonBox)
  }

  /** 字符串转正则表达式 */
  function strToRegExp(str) {
    if (!str || typeof str !== 'string') return null
    try {
      str = str.trim()
      const part = str.match(/^\/(.+?)\/(\w*)$/)
      /** @type {RegExp} */
      let regObj = null
      if (part) {
        regObj = new RegExp(part[1], part[2])
      } else if (str) {
        regObj = new RegExp(str, 'i')
      }
      return regObj
    } catch (error) {
      return new Error('错误的正则表达式!')
    }
  }

  /** 论坛目前默认排序方式是按照最新回复排序,为了兼容后续可能的改动,这里还是先保存默认排序,之后再按此顺序恢复 */
  /** 保存原始顺序 @param {HTMLTableSectionElement[]} lines */
  function setDftOrder(lines) {
    let maxOrder = Math.max(-Infinity, 1, ...lines.map(i => i.getAttribute(dftOrderAttrName) || 0))
    // 保存原始顺序
    lines.forEach(i => {
      // 已经记录了默认顺序的帖子跳过
      if (i.hasAttribute(dftOrderAttrName)) return
      i.setAttribute(dftOrderAttrName, maxOrder++)
    })
  }
  /** 还原帖子排序 */
  function recoverOrder() {
    /** @type {HTMLTableSectionElement[]} */
    const lines = [...document.querySelectorAll(`${tableSelector}>tbody[id*=normalthread_]`)]
    // 为新增的没有参与排序的行添加顺序以便排序
    setDftOrder(lines)
    const sorted = lines.sort((a, b) => parseInt(a.getAttribute(dftOrderAttrName)) - parseInt(b.getAttribute(dftOrderAttrName)))
    sortLines(sorted)
  }
  /** 按照顺序排列帖子 @param {HTMLTableSectionElement[]} lines */
  function sortLines(lines) {
    if (!Array.isArray(lines) || !lines.length) return
    const container = lines[0].parentNode
    if (!container) return console.warn('列表没有祖先节点,不进行操作!')

    container.append(...lines)
  }

  /** 获取创建时间 @param {HTMLTableSectionElement} line */
  function readCreateTime(line) {
    let text = line.querySelector('.by')
    if (!text || typeof text.innerText != 'string' || !text.innerText.trim()) return 0
    let part = text.innerText
      .replaceAll('\n', '')
      .trim()
      .match(/^.*?(\d{4})-(\d+)-(\d+)\s*(\d+):(\d+)$/)
    // 获取时间失败,排在最后面
    if (!part) return 0
    // 将 part 转为标准数组,并且把获取到的值转为数字
    part = new Array(5).fill(0).map((_, i) => parseInt(part[i + 1]))
    // 获取date实例时月份要减1
    part[1] = part[1] - 1
    // 对 Invalid Date 执行 getTime 会得到 NaN
    return new Date(...part).getTime() || 0
  }

  // #endregion utils

  // #region 脚本功能

  /** 移除已解决 */
  function filterBySolved() {
    const hideType = 'hide-by-solved'
    allHideTypes.add(hideType)
    const filterNonSolvedBtn = createBtn('移除已解决', filterBtnColor)
    filterNonSolvedBtn.addEventListener('click', () => {
      /** @type {HTMLTableSectionElement[]} */
      const lines = [...document.querySelectorAll(`${tableSelector}>tbody[id*=normalthread_]`)]
      lines.forEach(i => {
        if (!(i.innerText || '').includes('已解决')) return
        i.setAttribute(hideType, true)
        i.style.display = 'none'
      })
    })
    createBtn('还原已解决', showBtnColor).addEventListener('click', () => recoverByType(hideType))
  }
  /** 移除回复多于x */
  function filterByReplyGt() {
    const hideType = 'hide-by-reply-gt'
    allHideTypes.add(hideType)
    const filterByReply = createBtn(`移除回复多于 <input class="pj-ctl"/>`, filterBtnColor)
    const replyCount = filterByReply.querySelector('input')
    replyCount.addEventListener('click', e => e.stopPropagation())
    replyCount.value = 0
    filterByReply.addEventListener('click', () => {
      const maxCount = replyCount.value
      /** @type {HTMLTableSectionElement[]} */
      const lines = [...document.querySelectorAll(`${tableSelector}>tbody[id*=normalthread_]`)]
      lines.forEach(i => {
        const countEl = i.querySelector('tr>td.num>.xi2')
        if (parseInt(countEl.innerText) <= maxCount) return
        i.setAttribute(hideType, true)
        i.style.display = 'none'
      })
    })
    createBtn('还原回复多于x', showBtnColor).addEventListener('click', () => recoverByType(hideType))
  }
  /** 移除CB少于x */
  function filterByCBLt() {
    const hideType = 'hide-by-cb-lt'
    allHideTypes.add(hideType)
    const filterByCB = createBtn(`移除CB少于 <input class="pj-ctl"/>`, filterBtnColor)
    const CBCount = filterByCB.querySelector('input')
    CBCount.addEventListener('click', e => e.stopPropagation())
    CBCount.value = 0
    filterByCB.addEventListener('click', () => {
      const minCount = CBCount.value
      /** @type {HTMLTableSectionElement[]} */
      const lines = [...document.querySelectorAll(`${tableSelector}>tbody[id*=normalthread_]`)]
      lines.forEach(i => {
        const cb = parseInt(i.innerText.replaceAll('\n', '').replace(/.*悬赏\s*(\d+)\s*CB\s*吾爱币.*/, '$1'))
        if (cb >= minCount) return
        i.setAttribute(hideType, true)
        i.style.display = 'none'
      })
    })
    createBtn('还原CB少于x', showBtnColor).addEventListener('click', () => recoverByType(hideType))
  }

  /** 正则过滤 */
  function filterByRegExp() {
    const hideType = 'hide-by-reg-exp'
    allHideTypes.add(hideType)
    const filterByRegExp = createBtn(`正则过滤`, filterBtnColor)
    filterByRegExp.addEventListener('click', () => {
      /** @type {HTMLTableSectionElement[]} */
      const lines = [...document.querySelectorAll(`${tableSelector}>tbody[id*=normalthread_]`)]
      const regObj = strToRegExp(options.useFilterByRegExp)
      if (!(regObj instanceof RegExp)) return
      lines.forEach(i => {
        if (!regObj.test(i.innerText.replaceAll('\n', ''))) return
        i.setAttribute(hideType, true)
        i.style.display = 'none'
      })
    })
    createBtn('还原正则过滤', showBtnColor).addEventListener('click', () => recoverByType(hideType))
  }

  /** 按创建时间排序 */
  function sortByCreateTime() {
    const sortByCreateTime = createBtn(`按创建时间排序`, filterBtnColor)
    sortByCreateTime.addEventListener('click', () => {
      /** @type {HTMLTableSectionElement[]} */
      const lines = [...document.querySelectorAll(`${tableSelector}>tbody[id*=normalthread_]`)]
      setDftOrder(lines)
      const sorted = lines.sort((a, b) => readCreateTime(b) - readCreateTime(a))
      sortLines(sorted)
    })
    createBtn('还原排序', showBtnColor).addEventListener('click', recoverOrder)
  }

  // #endregion 脚本功能

  window.addEventListener('load', () => {
    regMenu()
    const appendTarget = document.querySelector(appendSelector)
    if (!appendTarget) return console.warn('不是论坛列表页,不添加按钮。')
    initPJTools()
  })
})()