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在手机上查看网页元素信息，帮助分析广告位置
// ==UserScript==
// @name 移动端网页元素查看器3
// @name:zh-CN 移动端网页元素查看器3
// @namespace http://greasyfork.icu/users/cj920815
// @version 1.0.1
// @description 在手机上查看网页元素信息，帮助分析广告位置
// @description:zh-CN 在手机上查看网页元素信息，帮助分析广告位置
// @author cj920815
// @match *://*/*
// @grant none
// @license MIT
// @run-at document-end
// ==/UserScript==
(function() {
'use strict';
// 创建悬浮按钮
const button = document.createElement('button');
button.textContent = '查看元素';
button.style.cssText = `
position: fixed;
top: 10px;
right: 10px;
z-index: 999999;
background: #4CAF50;
color: white;
border: none;
padding: 8px 16px;
border-radius: 4px;
box-shadow: 0 2px 5px rgba(0,0,0,0.2);
font-size: 14px;
`;
// 创建信息面板
const panel = document.createElement('div');
panel.style.cssText = `
position: fixed;
bottom: 0;
left: 0;
right: 0;
background: rgba(0,0,0,0.8);
color: white;
padding: 10px;
font-size: 12px;
z-index: 999998;
max-height: 50vh;
overflow-y: auto;
display: none;
`;
// 创建遮罩层
const overlay = document.createElement('div');
overlay.style.cssText = `
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: transparent;
z-index: 999996;
display: none;
`;
let isInspecting = false;
let highlightBox = null;
let lastTouchTime = 0;
const DOUBLE_TAP_DELAY = 300; // 双击间隔时间（毫秒）
// 创建高亮框
function createHighlightBox() {
const box = document.createElement('div');
box.style.cssText = `
position: absolute;
border: 2px solid #ff0000;
background: rgba(255,0,0,0.2);
pointer-events: none;
z-index: 999997;
display: none;
`;
document.body.appendChild(box);
return box;
}
// 显示元素信息
function showElementInfo(element) {
const rect = element.getBoundingClientRect();
const styles = window.getComputedStyle(element);
// 获取元素的所有父元素
let parents = [];
let currentElement = element;
while (currentElement && currentElement !== document.body) {
parents.unshift(currentElement);
currentElement = currentElement.parentElement;
}
// 构建元素路径
const elementPath = parents.map(el => {
let str = el.tagName.toLowerCase();
if (el.id) str += '#' + el.id;
if (el.className) str += '.' + el.className.replace(/\s+/g, '.');
return str;
}).join(' > ');
panel.innerHTML = `
<div style="margin-bottom: 8px;">
<strong>标签:</strong> ${element.tagName.toLowerCase()}<br>
<strong>ID:</strong> ${element.id || '无'}<br>
<strong>类名:</strong> ${element.className || '无'}<br>
<strong>位置:</strong> 上${Math.round(rect.top)}px, 左${Math.round(rect.left)}px<br>
<strong>尺寸:</strong> ${Math.round(rect.width)}x${Math.round(rect.height)}px<br>
<strong>定位:</strong> ${styles.position}<br>
<strong>z-index:</strong> ${styles.zIndex}<br>
<strong>display:</strong> ${styles.display}<br>
<strong>visibility:</strong> ${styles.visibility}<br>
<strong>元素路径:</strong> ${elementPath}<br>
</div>
<div style="margin-bottom: 8px;">
<strong>内部HTML:</strong><br>
<div style="background: rgba(255,255,255,0.1); padding: 5px; margin-top: 5px; word-break: break-all;">
${element.outerHTML.replace(/</g, '<').replace(/>/g, '>')}
</div>
</div>
<div style="color: #ffeb3b; margin-top: 10px;">
提示：双击元素可以复制元素信息
</div>
`;
// 更新高亮框位置
highlightBox.style.display = 'block';
highlightBox.style.left = rect.left + window.scrollX + 'px';
highlightBox.style.top = rect.top + window.scrollY + 'px';
highlightBox.style.width = rect.width + 'px';
highlightBox.style.height = rect.height + 'px';
}
// 切换检查模式
function toggleInspect() {
isInspecting = !isInspecting;
button.textContent = isInspecting ? '停止查看' : '查看元素';
button.style.background = isInspecting ? '#f44336' : '#4CAF50';
panel.style.display = isInspecting ? 'block' : 'none';
overlay.style.display = isInspecting ? 'block' : 'none';
highlightBox.style.display = 'none';
if (!isInspecting) {
panel.innerHTML = '';
}
// 在检查模式下禁用页面滚动
document.body.style.overflow = isInspecting ? 'hidden' : '';
}
// 复制元素信息到剪贴板
function copyElementInfo() {
const info = panel.innerText;
const textarea = document.createElement('textarea');
textarea.value = info;
document.body.appendChild(textarea);
textarea.select();
document.execCommand('copy');
document.body.removeChild(textarea);
const notification = document.createElement('div');
notification.style.cssText = `
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background: rgba(0,0,0,0.8);
color: white;
padding: 10px 20px;
border-radius: 4px;
z-index: 999999;
`;
notification.textContent = '元素信息已复制到剪贴板';
document.body.appendChild(notification);
setTimeout(() => {
document.body.removeChild(notification);
}, 2000);
}
// 初始化
document.body.appendChild(button);
document.body.appendChild(panel);
document.body.appendChild(overlay);
highlightBox = createHighlightBox();
// 事件处理
button.addEventListener('click', toggleInspect);
overlay.addEventListener('click', function(e) {
if (!isInspecting) return;
e.preventDefault();
e.stopPropagation();
const element = document.elementFromPoint(e.clientX, e.clientY);
if (element) {
showElementInfo(element);
}
});
// 添加触摸支持
overlay.addEventListener('touchstart', function(e) {
if (!isInspecting) return;
e.preventDefault();
const now = Date.now();
const touch = e.touches[0];
const element = document.elementFromPoint(touch.clientX, touch.clientY);
if (element) {
showElementInfo(element);
// 检测双击
if (now - lastTouchTime < DOUBLE_TAP_DELAY) {
copyElementInfo();
}
lastTouchTime = now;
}
}, {passive: false});
// 防止页面滚动穿透
overlay.addEventListener('touchmove', function(e) {
if (isInspecting) {
e.preventDefault();
}
}, {passive: false});
// 添加键盘快捷键支持
document.addEventListener('keydown', function(e) {
if (e.key === 'Escape' && isInspecting) {
toggleInspect();
}
});
})();