Discourse Prevent Jump on Reply

Prevent Discourse from jumping after posting a reply by intercepting the reply button click and forcing shiftKey, keeping scroll position and context.

Verze ze dne 04. 12. 2025. Zobrazit nejnovější verzi.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name                 Discourse Prevent Jump on Reply
// @name:zh-CN           Discourse 回复时防止跳转
// @namespace            https://github.com/utags
// @homepageURL          https://github.com/utags/userscripts#readme
// @supportURL           https://github.com/utags/userscripts/issues
// @version              0.1.2
// @description          Prevent Discourse from jumping after posting a reply by intercepting the reply button click and forcing shiftKey, keeping scroll position and context.
// @description:zh-CN    拦截回复按钮点击并强制 shiftKey,避免发帖后页面跳转,保持当前位置与上下文。
// @icon                 https://www.google.com/s2/favicons?sz=64&domain=meta.discourse.org
// @author               Pipecraft
// @license              MIT
// @match                https://meta.discourse.org/*
// @match                https://linux.do/*
// @match                https://idcflare.com/*
// @match                https://www.nodeloc.com/*
// @match                https://meta.appinn.net/*
// @noframes
// @run-at               document-idle
// @grant                GM.getValue
// @grant                GM.setValue
// ==/UserScript==
//
;(() => {
  'use strict'
  var SELECTOR_REPLY_BUTTON =
    '.composer-action-reply .save-or-cancel button.create'
  var I18N_LABEL = {
    en: 'Prevent jump to latest post',
    'zh-CN': '\u9632\u6B62\u8DF3\u8F6C\u5230\u6700\u65B0\u5E16\u5B50',
  }
  function getDiscourseLocale() {
    try {
      const htmlLang = (
        document.documentElement.getAttribute('lang') || ''
      ).toLowerCase()
      if (htmlLang) return htmlLang
      const bodyLang =
        (document.body && document.body.getAttribute('lang')) || ''
      if (bodyLang) return bodyLang.toLowerCase()
      const classes = (document.documentElement.className || '').toLowerCase()
      const m = /\blocale-([a-z-]+)/.exec(classes)
      if (m && m[1]) return m[1]
      const meta =
        document.querySelector('meta[name="language"]') ||
        document.querySelector('meta[http-equiv="content-language"]')
      const metaLang = meta && meta.content ? meta.content.toLowerCase() : ''
      if (metaLang) return metaLang
    } catch (e) {}
    return ''
  }
  function getLang() {
    const l =
      getDiscourseLocale() || String(navigator.language || '').toLowerCase()
    return l.startsWith('zh') ? 'zh-CN' : 'en'
  }
  var inited = /* @__PURE__ */ new WeakSet()
  function register(button) {
    if (!button || inited.has(button)) return
    inited.add(button)
    ensureToggle(button)
    button.addEventListener(
      'click',
      (originalEvent) => {
        if (!getEnabled() || originalEvent.shiftKey) return
        originalEvent.stopImmediatePropagation()
        originalEvent.preventDefault()
        const newEvent = new MouseEvent('click', {
          bubbles: originalEvent.bubbles,
          cancelable: originalEvent.cancelable,
          clientX: originalEvent.clientX,
          clientY: originalEvent.clientY,
          shiftKey: true,
          altKey: originalEvent.altKey,
          ctrlKey: originalEvent.ctrlKey,
          metaKey: originalEvent.metaKey,
          button: originalEvent.button,
          buttons: originalEvent.buttons,
        })
        originalEvent.target.dispatchEvent(newEvent)
      },
      true
    )
  }
  function scan() {
    const list = document.querySelectorAll(SELECTOR_REPLY_BUTTON)
    for (const b of list) register(b)
  }
  function getActiveReplyButton() {
    const list = document.querySelectorAll(SELECTOR_REPLY_BUTTON)
    return (
      Array.from(list).find((b) => Boolean(b.offsetParent)) || list[0] || null
    )
  }
  document.addEventListener(
    'keydown',
    (e) => {
      if (
        getEnabled() &&
        (e.metaKey || e.ctrlKey) &&
        (e.key === 'Enter' || e.code === 'Enter')
      ) {
        e.stopImmediatePropagation()
        e.preventDefault()
        const btn = getActiveReplyButton()
        if (btn) {
          const ev = new MouseEvent('click', {
            bubbles: true,
            cancelable: true,
            shiftKey: true,
          })
          btn.dispatchEvent(ev)
        }
      }
    },
    true
  )
  var KEY = 'dpjor_enabled:' + (location.hostname || '')
  var enabledFlag = false
  function getEnabled() {
    return Boolean(enabledFlag)
  }
  async function loadEnabled() {
    try {
      const val = await GM.getValue(KEY, '0')
      enabledFlag = val === '1' || val === true
      updateToggleUI()
    } catch (e) {
      enabledFlag = false
    }
  }
  function setEnabled(v) {
    enabledFlag = Boolean(v)
    try {
      GM.setValue(KEY, v ? '1' : '0')
    } catch (e) {}
  }
  function updateToggleUI() {
    try {
      for (const cb of document.querySelectorAll(
        '.dpjor-toggle input[type="checkbox"]'
      ))
        cb.checked = getEnabled()
    } catch (e) {}
  }
  function ensureToggle(button) {
    const container = button.closest('.save-or-cancel') || button.parentElement
    if (!container || container.querySelector('.dpjor-toggle')) return
    const label = document.createElement('label')
    label.className = 'dpjor-toggle'
    label.style.marginLeft = '8px'
    label.style.display = 'inline-flex'
    label.style.alignItems = 'center'
    label.style.gap = '6px'
    const cb = document.createElement('input')
    cb.type = 'checkbox'
    cb.checked = getEnabled()
    const span = document.createElement('span')
    span.textContent = I18N_LABEL[getLang()] || I18N_LABEL.en
    cb.addEventListener('change', () => {
      setEnabled(cb.checked)
    })
    label.append(cb)
    label.append(span)
    container.append(label)
  }
  void loadEnabled()
  scan()
  var mo = new MutationObserver(() => {
    scan()
  })
  mo.observe(document.documentElement || document.body, {
    childList: true,
    subtree: true,
  })
})()