// ==UserScript==
// @name         防止未经授权的自动复制
// @version      25
// @description  并在非选词复制时显示小红点提示用户以防止未经授权的自动复制，脚本菜单还加入了禁止写入剪贴板功能
// @author       ChatGPT
// @match        *://*/*
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_registerMenuCommand
// @grant        GM_setClipboard
// @run-at       document-start
// @namespace https://greasyfork.org/users/452911
// ==/UserScript==
(function() {
'use strict';
// 获取当前域名
const domain = window.location.hostname;
// 获取当前域名对应的脚本启用状态
let isEnabledClipboard = GM_getValue(domain + '_clipboard', false);
let isEnabledAutoCopy = GM_getValue(domain + '_autocopy', true);
// 注册菜单命令
GM_registerMenuCommand((isEnabledClipboard ? '允许' : '禁止') + '写入剪贴板', () => {
isEnabledClipboard = !isEnabledClipboard; // 切换启用状态
GM_setValue(domain + '_clipboard', isEnabledClipboard); // 保存启用状态
location.reload(); // 刷新页面使变更生效
});
GM_registerMenuCommand((isEnabledAutoCopy ? '禁用' : '启用') + '复制监听', () => {
isEnabledAutoCopy = !isEnabledAutoCopy;
GM_setValue(domain + '_autocopy', isEnabledAutoCopy);
location.reload();
});
// 如果脚本启用，禁用剪贴板相关操作
if (isEnabledClipboard) {
['execCommand', 'writeText', 'write'].forEach(method => {
const target = method === 'execCommand' ? document : navigator.clipboard;
Object.defineProperty(target, method, {
value: () => {},
writable: false,
configurable: false
});
});
}
if (!isEnabledAutoCopy) return; // 如果脚本被禁用，则不执行以下代码
let hasCopied = false;
let timeoutId = null;
let dot = null;
const handleCopy = function(event) {
event.preventDefault();
const selection = window.getSelection().toString();
if (!hasCopied && selection.trim().length > 0) {
hasCopied = true;
createDot(selection);
}
};
const createDot = function(selection) {
dot = document.createElement('div');
dot.style.width = '20px';
dot.style.height = '20px';
dot.style.zIndex = '9999';
dot.style.background = 'rgba(255, 0, 0, 0.2)';
dot.style.borderRadius = '50%';
dot.style.position = 'fixed';
dot.style.top = '50%';
dot.style.right = '10px';
dot.style.transform = 'translateY(-50%)';
dot.style.cursor = 'pointer';
dot.addEventListener('click', function() {
const shouldCopy = confirm(selection);
if (shouldCopy) {
if (typeof GM_setClipboard === "function") {
GM_setClipboard(selection);
} else {
copyToClipboard(selection);
}
}
document.body.removeChild(dot);
hasCopied = false;
});
document.body.appendChild(dot);
timeoutId = setTimeout(function() {
if (dot && dot.parentNode) {
document.body.removeChild(dot);
}
hasCopied = false;
timeoutId = null;
}, 4000);
};
document.addEventListener('selectionchange', handleSelectionChange);
const copyToClipboard = function(text) {
const textArea = document.createElement('textarea');
textArea.value = text;
document.body.appendChild(textArea);
textArea.select();
document.execCommand('copy');
document.body.removeChild(textArea);
};
navigator.clipboard.writeText = function(text) {
return new Promise((resolve, reject) => {
copyToClipboard(text);
resolve();
});
};
document.addEventListener('copy', handleCopy, { capture: true });
window.addEventListener('beforeunload', function() {
if (timeoutId) {
clearTimeout(timeoutId);
}
});
let startX = null;
let startY = null;
document.addEventListener('touchstart', function(e) {
startX = e.touches[0].clientX;
startY = e.touches[0].clientY;
});
document.addEventListener('touchmove', function(e) {
const currentX = e.touches[0].clientX;
const currentY = e.touches[0].clientY;
const diffX = Math.abs(currentX - startX);
const diffY = Math.abs(currentY - startY);
if ((diffX > 10 || diffY > 10) && dot) {
document.body.removeChild(dot);
hasCopied = false;
if (timeoutId) {
clearTimeout(timeoutId);
timeoutId = null;
}
}
});
function handleSelectionChange() {
if (window.getSelection().toString().trim().length === 0) {
document.addEventListener('copy', handleCopy, { capture: true });
} else {
document.removeEventListener('copy', handleCopy, { capture: true });
}
}
})();