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Ctrl+F 呼出查找替换面板，支持高亮、逐项替换、全部替换、撤回上一次替换操作（单个或全部）、快捷键Enter替换全部、Ctrl+Enter替换当前、Ctrl+Z撤回
// ==UserScript==
// @name 网页查找替换增强
// @namespace http://tampermonkey.local/
// @version 1.6
// @description Ctrl+F 呼出查找替换面板，支持高亮、逐项替换、全部替换、撤回上一次替换操作（单个或全部）、快捷键Enter替换全部、Ctrl+Enter替换当前、Ctrl+Z撤回
// @author akers
// @license MIT
// @match *://*/*
// @grant none
// ==/UserScript==
(function () {
'use strict';
// ---- 配置 ----
const HIGH_LIGHT_CLASS = 'tm-text-replace-hit';
const PANEL_ID = 'tmTextReplacePanel';
// ---- 样式 ----
const style = document.createElement('style');
style.textContent = `
.${HIGH_LIGHT_CLASS} {
background: yellow;
color: black;
border-radius: 2px;
padding: 0 2px;
}
.${HIGH_LIGHT_CLASS}.tr-current {
outline: 2px solid orange;
box-shadow: 0 0 6px rgba(255,165,0,0.6);
}
#${PANEL_ID} input, #${PANEL_ID} button { font-size:12px; }
`;
document.head.appendChild(style);
// ---- 工具 ----
function isInEditable(evt) {
const active = document.activeElement;
if (!active) return false;
const tag = active.tagName;
if (tag === 'INPUT' || tag === 'TEXTAREA') return true;
if (active.isContentEditable) return true;
return false;
}
// ---- 全局状态 ----
let hits = [];
let currentIndex = -1;
let ignoreObserver = false;
let undoStack = []; // 每次替换操作存一条记录（单个或全部）
// ---- UI ----
function createPanel() {
if (document.getElementById(PANEL_ID)) return document.getElementById(PANEL_ID);
const container = document.createElement('div');
container.id = PANEL_ID;
container.style = `
position: fixed;
top: 1%;
left: 50%;
transform: translateX(-50%);
z-index: 2147483647;
background: #fff;
color: #000;
border: 1px solid #ddd;
padding: 10px;
width: 360px;
font-family: Arial, sans-serif;
border-radius: 6px;
box-shadow: 0 4px 12px rgba(0,0,0,0.25);
`;
container.innerHTML = `
<div style="display:flex;align-items:center;justify-content:space-between;margin-bottom:6px;">
<strong>查找替换</strong>
<div>
<label style="font-size:12px;margin-right:6px;"><input type="checkbox" id="trCase"> 区分大小写</label>
<button id="trClose" title="关闭" style="margin-left:6px;">✖</button>
</div>
</div>
<div style="display:flex;gap:6px;margin-bottom:6px;">
<input id="trFind" placeholder="查找内容" style="flex:1;padding:6px;">
<input id="trReplace" placeholder="替换为" style="width:120px;padding:6px;">
</div>
<div style="display:flex;gap:6px;justify-content:flex-end;">
<button id="trPrev">上一个</button>
<button id="trNext">下一个</button>
<button id="trReplaceOne">替换</button>
<button id="trReplaceAll">全部替换</button>
<button id="trUndo">撤回</button>
</div>
<div style="margin-top:6px;font-size:12px;color:#666;display:flex;justify-content:space-between;align-items:center;">
<span id="trStatus">匹配: 0</span>
</div>
`;
document.body.appendChild(container);
container.querySelector('#trClose').onclick = () => { container.remove(); removeHighlights(); };
return container;
}
// ---- 清理高亮 ----
function removeHighlights() {
if (!hits.length) return;
ignoreObserver = true;
for (const el of hits) {
const parent = el.parentNode;
if (!parent) continue;
parent.replaceChild(document.createTextNode(el.textContent), el);
parent.normalize && parent.normalize();
}
hits = [];
currentIndex = -1;
ignoreObserver = false;
updateStatus();
}
// ---- 单节点高亮 ----
function highlightInTextNode(textNode, regex) {
const text = textNode.nodeValue;
let match, lastIndex = 0;
const docFrag = document.createDocumentFragment();
let any = false;
while ((match = regex.exec(text)) !== null) {
any = true;
const start = match.index;
const end = start + match[0].length;
if (start > lastIndex) docFrag.appendChild(document.createTextNode(text.slice(lastIndex, start)));
const sp = document.createElement('span');
sp.className = HIGH_LIGHT_CLASS;
sp.textContent = text.slice(start, end);
sp.setAttribute('title', '查找匹配');
docFrag.appendChild(sp);
lastIndex = end;
if (regex.lastIndex === match.index) regex.lastIndex++;
}
if (!any) return null;
if (lastIndex < text.length) docFrag.appendChild(document.createTextNode(text.slice(lastIndex)));
return docFrag;
}
// ---- 遍历并高亮 ----
function doHighlight(findText, caseSensitive = false) {
removeHighlights();
if (!findText) return;
const esc = findText.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
const flags = caseSensitive ? 'g' : 'gi';
const regex = new RegExp(esc, flags);
const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT, {
acceptNode(node) {
if (!node.nodeValue || !node.nodeValue.trim()) return NodeFilter.FILTER_REJECT;
const parent = node.parentNode;
if (!parent) return NodeFilter.FILTER_REJECT;
const tag = parent.tagName;
if (!tag) return NodeFilter.FILTER_REJECT;
if (['SCRIPT', 'STYLE', 'NOSCRIPT', 'IFRAME'].includes(tag)) return NodeFilter.FILTER_REJECT;
if (parent.isContentEditable) return NodeFilter.FILTER_REJECT;
if (parent.closest && parent.closest('input,textarea')) return NodeFilter.FILTER_REJECT;
return NodeFilter.FILTER_ACCEPT;
}
});
const nodesToReplace = [];
while (walker.nextNode()) nodesToReplace.push(walker.currentNode);
ignoreObserver = true;
try {
for (const tnode of nodesToReplace) {
const frag = highlightInTextNode(tnode, regex);
if (frag) tnode.parentNode.replaceChild(frag, tnode);
}
hits = Array.from(document.querySelectorAll('span.' + HIGH_LIGHT_CLASS));
hits.forEach((el, idx) => { el.onclick = (e) => { e.stopPropagation(); setCurrent(idx, true); }; });
} finally { ignoreObserver = false; }
if (hits.length) setCurrent(0, true);
updateStatus();
}
function updateStatus() {
const panel = document.getElementById(PANEL_ID);
if (!panel) return;
const stat = panel.querySelector('#trStatus');
stat.textContent = `匹配: ${hits.length} 当前: ${currentIndex >= 0 ? (currentIndex + 1) : 0}`;
}
function setCurrent(index, scroll = true) {
if (!hits.length) { currentIndex = -1; updateStatus(); return; }
if (index < 0) index = hits.length - 1;
if (index >= hits.length) index = 0;
if (currentIndex >= 0 && hits[currentIndex]) hits[currentIndex].classList.remove('tr-current');
currentIndex = index;
const el = hits[currentIndex];
if (!el) return;
el.classList.add('tr-current');
if (scroll) try { el.scrollIntoView({ behavior: 'smooth', block: 'center' }); } catch(e){el.scrollIntoView();}
updateStatus();
}
// ---- 替换 ----
function replaceCurrent(replaceText) {
if (!hits.length || currentIndex < 0) return;
const cur = hits[currentIndex];
const parent = cur.parentNode;
if (!parent) return;
ignoreObserver = true;
undoStack.push({ type:'replaceOne', items:[{ parent, originalText: cur.textContent, index: Array.prototype.indexOf.call(parent.childNodes, cur) }] });
parent.replaceChild(document.createTextNode(replaceText), cur);
parent.normalize && parent.normalize();
ignoreObserver = false;
doHighlight(document.getElementById(PANEL_ID).querySelector('#trFind').value, document.getElementById(PANEL_ID).querySelector('#trCase').checked);
}
function replaceAll(replaceText) {
if (!hits.length) return;
ignoreObserver = true;
const items = hits.map(el => ({ parent: el.parentNode, originalText: el.textContent, index: Array.prototype.indexOf.call(el.parentNode.childNodes, el) }));
undoStack.push({ type:'replaceAll', items });
for (let i = hits.length - 1; i >= 0; i--) {
const el = hits[i];
const parent = el.parentNode;
if (!parent) continue;
parent.replaceChild(document.createTextNode(replaceText), el);
parent.normalize && parent.normalize();
}
ignoreObserver = false;
hits = [];
currentIndex = -1;
updateStatus();
}
function undoLast() {
if (!undoStack.length) return;
ignoreObserver = true;
const op = undoStack.pop();
for (const it of op.items) {
const textNode = document.createTextNode(it.originalText);
const parent = it.parent;
if (parent.childNodes[it.index]) parent.insertBefore(textNode, parent.childNodes[it.index]);
else parent.appendChild(textNode);
parent.normalize && parent.normalize();
}
ignoreObserver = false;
const panel = document.getElementById(PANEL_ID);
if (panel && panel.querySelector('#trFind').value) {
doHighlight(panel.querySelector('#trFind').value, panel.querySelector('#trCase').checked);
}
}
function bindPanelEvents(panel) {
const findInput = panel.querySelector('#trFind');
const replaceInput = panel.querySelector('#trReplace');
const nextBtn = panel.querySelector('#trNext');
const prevBtn = panel.querySelector('#trPrev');
const repOneBtn = panel.querySelector('#trReplaceOne');
const repAllBtn = panel.querySelector('#trReplaceAll');
const undoBtn = panel.querySelector('#trUndo');
const caseChk = panel.querySelector('#trCase');
let tmr = null;
findInput.addEventListener('input', () => {
clearTimeout(tmr);
tmr = setTimeout(() => doHighlight(findInput.value, caseChk.checked), 250);
});
findInput.addEventListener('keydown', (e) => {
if (e.key === 'Enter') {
e.preventDefault();
if (e.ctrlKey) replaceCurrent(replaceInput.value); // Ctrl+Enter 替换当前
else replaceAll(replaceInput.value); // Enter 替换全部
}
});
replaceInput.addEventListener('keydown', (e) => {
if (e.key === 'Enter') {
e.preventDefault();
if (e.ctrlKey) replaceCurrent(replaceInput.value);
else replaceAll(replaceInput.value);
}
});
nextBtn.onclick = () => { if (hits.length) setCurrent(currentIndex+1); };
prevBtn.onclick = () => { if (hits.length) setCurrent(currentIndex-1); };
repOneBtn.onclick = () => replaceCurrent(replaceInput.value);
repAllBtn.onclick = () => replaceAll(replaceInput.value);
undoBtn.onclick = () => undoLast();
}
function openPanelAndFocus() {
const panel = createPanel();
const findInput = panel.querySelector('#trFind');
findInput.focus();
return panel;
}
// ---- 全局快捷键 ----
window.addEventListener('keydown', function(e){
const panel = document.getElementById(PANEL_ID);
// Esc 关闭面板
if (e.key==='Escape' && panel){
e.preventDefault();
panel.remove();
removeHighlights();
return;
}
// Ctrl+F 打开面板
if (!isInEditable(e) && e.ctrlKey && e.key.toLowerCase()==='f'){
e.preventDefault();
if (panel) panel.querySelector('#trFind').focus();
else {
const newPanel = openPanelAndFocus();
bindPanelEvents(newPanel);
}
}
// Ctrl+Z 撤回
if (!isInEditable(e) && e.ctrlKey && !e.shiftKey && e.key.toLowerCase() === 'z') {
e.preventDefault();
undoLast();
}
});
// ---- 页面变动监控 ----
const observer = new MutationObserver(mutations => {
if (ignoreObserver) return;
const panel = document.getElementById(PANEL_ID);
if (!panel) return;
const findInput = panel.querySelector('#trFind');
if (findInput && findInput.value) {
if (window.__tm_tr_debounce) clearTimeout(window.__tm_tr_debounce);
window.__tm_tr_debounce = setTimeout(() => doHighlight(findInput.value, panel.querySelector('#trCase').checked), 300);
}
});
observer.observe(document.body, { childList:true, subtree:true, characterData:true });
window.addEventListener('beforeunload', ()=>removeHighlights());
})();