// ==UserScript==
// @name AI Image Description Generator Gimini
// @namespace http://tampermonkey.net/
// @version 1.0
// @description 使用AI生成网页图片描述
// @author AlphaCat
// @match *://*/*
// @grant GM_addStyle
// @grant GM_setValue
// @grant GM_getValue
// @license MIT
// ==/UserScript==
(function () {
'use strict';
// 添加样式
GM_addStyle(`
.ai-config-modal {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background: white;
padding: 20px;
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
z-index: 10000;
min-width: 500px;
height: auto;
}
.ai-config-modal h3 {
margin: 0 0 15px 0;
font-size: 14px;
font-weight: bold;
color: #333;
}
.ai-config-modal label {
display: inline-block;
font-size: 12px;
font-weight: bold;
color: #333;
margin: 0;
line-height: normal;
height: auto;
}
.ai-config-modal .input-wrapper {
position: relative;
display: flex;
align-items: center;
}
.ai-config-modal input {
display: block;
width: 100%;
padding: 2px 24px 2px 2px;
margin: 2px;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 13px;
line-height: normal;
height: auto;
box-sizing: border-box;
}
.ai-config-modal .input-icon {
position: absolute;
right: 4px;
width: 16px;
height: 16px;
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
color: #666;
font-size: 12px;
user-select: none;
}
.ai-config-modal .clear-icon {
right: 24px;
}
.ai-config-modal .toggle-password {
right: 4px;
}
.ai-config-modal .input-icon:hover {
color: #333;
}
.ai-config-modal .input-group {
margin-bottom: 12px;
height: auto;
display: flex;
flex-direction: column;
}
.ai-config-modal .button-row {
display: flex;
gap: 10px;
align-items: center;
margin-top: 5px;
}
.ai-config-modal .check-button {
padding: 4px 8px;
border: none;
border-radius: 4px;
background: #007bff;
color: white;
cursor: pointer;
font-size: 12px;
}
.ai-config-modal .check-button:hover {
background: #0056b3;
}
.ai-config-modal .check-button:disabled {
background: #cccccc;
cursor: not-allowed;
}
.ai-config-modal select {
width: 100%;
padding: 4px;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 13px;
margin-top: 2px;
}
.ai-config-modal .status-text {
font-size: 12px;
margin-left: 10px;
}
.ai-config-modal .status-success {
color: #28a745;
}
.ai-config-modal .status-error {
color: #dc3545;
}
.ai-config-modal button {
margin: 10px 5px;
padding: 8px 15px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 14px;
}
.ai-config-modal button#ai-save-config {
background: #4CAF50;
color: white;
}
.ai-config-modal button#ai-cancel-config {
background: #dc3545;
color: white;
}
.ai-config-modal button:hover {
opacity: 0.9;
}
.ai-floating-btn {
position: fixed;
width: 32px;
height: 32px;
background: #4CAF50;
color: white;
border-radius: 50%;
cursor: move;
z-index: 9999;
box-shadow: 0 2px 5px rgba(0,0,0,0.2);
display: flex;
align-items: center;
justify-content: center;
user-select: none;
transition: background-color 0.3s;
}
.ai-floating-btn:hover {
background: #45a049;
}
.ai-floating-btn svg {
width: 20px;
height: 20px;
fill: white;
}
.ai-menu {
position: absolute;
background: white;
border-radius: 5px;
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
padding: 8px;
z-index: 10000;
display: flex;
gap: 8px;
}
.ai-menu-item {
width: 32px;
height: 32px;
padding: 6px;
cursor: pointer;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
transition: background-color 0.3s;
}
.ai-menu-item:hover {
background: #f5f5f5;
}
.ai-menu-item svg {
width: 20px;
height: 20px;
fill: #666;
}
.ai-menu-item:hover svg {
fill: #4CAF50;
}
.ai-image-options {
display: flex;
flex-direction: column;
gap: 10px;
margin: 15px 0;
}
.ai-image-options button {
padding: 8px 15px;
border: none;
border-radius: 4px;
background: #4CAF50;
color: white;
cursor: pointer;
transition: background-color 0.3s;
font-size: 14px;
}
.ai-image-options button:hover {
background: #45a049;
}
#ai-cancel {
background: #dc3545;
color: white;
}
#ai-cancel:hover {
opacity: 0.9;
}
.ai-toast {
position: fixed;
top: 20px;
left: 50%;
transform: translateX(-50%);
padding: 10px 20px;
background: rgba(0, 0, 0, 0.8);
color: white;
border-radius: 4px;
font-size: 14px;
z-index: 10000;
animation: fadeInOut 3s ease;
pointer-events: none;
white-space: pre-line;
text-align: center;
max-width: 80%;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
@keyframes fadeInOut {
0% { opacity: 0; transform: translate(-50%, 10px); }
10% { opacity: 1; transform: translate(-50%, 0); }
90% { opacity: 1; transform: translate(-50%, 0); }
100% { opacity: 0; transform: translate(-50%, -10px); }
}
.ai-config-modal .button-group {
display: flex;
justify-content: flex-end;
gap: 10px;
margin-top: 20px;
}
.ai-config-modal .button-group button {
padding: 6px 16px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 14px;
transition: background-color 0.2s;
}
.ai-config-modal .save-button {
background: #007bff;
color: white;
}
.ai-config-modal .save-button:hover {
background: #0056b3;
}
.ai-config-modal .save-button:disabled {
background: #cccccc;
cursor: not-allowed;
}
.ai-config-modal .cancel-button {
background: #f8f9fa;
color: #333;
}
.ai-config-modal .cancel-button:hover {
background: #e2e6ea;
}
.ai-selecting-image {
cursor: crosshair !important;
}
.ai-selecting-image * {
cursor: crosshair !important;
}
.ai-image-description {
position: fixed;
background: rgba(0, 0, 0, 0.8);
color: white;
padding: 8px 12px;
border-radius: 4px;
font-size: 14px;
line-height: 1.4;
max-width: 300px;
text-align: center;
word-wrap: break-word;
z-index: 10000;
pointer-events: none;
animation: fadeIn 0.3s ease;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
@keyframes fadeIn {
from { opacity: 0; }
to { opacity: 1; }
}
.ai-modal-overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
display: flex;
justify-content: center;
align-items: center;
z-index: 9999;
}
.ai-result-modal {
background: white;
padding: 20px;
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
position: relative;
min-width: 300px;
max-width: 1000px;
max-height: 540px;
overflow-y: auto;
width: 90%;
}
.ai-result-modal h3 {
margin: 0 0 10px 0;
font-size: 14px;
color: #333;
}
.ai-result-modal .description-code {
background: #1e1e1e;
color: #ffffff;
padding: 12px;
border-radius: 4px;
margin: 5px 0;
cursor: pointer;
white-space: pre-wrap;
word-wrap: break-word;
font-family: monospace;
border: 1px solid #333;
position: relative;
max-height: 500px;
overflow-y: auto;
font-size: 12px;
line-height: 1.4;
}
.ai-result-modal .description-code * {
color: #ffffff !important;
}
.ai-result-modal .description-code code {
color: #ffffff;
display: block;
width: 100%;
}
.ai-result-modal .description-code:hover {
background: #2d2d2d;
color: #ffffff;
}
.ai-result-modal .copy-hint {
font-size: 11px;
color: #666;
text-align: center;
margin: 2px 0;
}
.ai-result-modal .close-button {
position: absolute;
top: 8px;
right: 8px;
background: none;
border: none;
font-size: 18px;
cursor: pointer;
color: #666;
padding: 2px 6px;
line-height: 1;
}
.ai-result-modal .close-button:hover {
color: #333;
}
.ai-selection-overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
z-index: 9998;
cursor: crosshair;
pointer-events: none;
}
.ai-selecting-image img {
position: relative;
z-index: 9999;
cursor: pointer !important;
transition: outline 0.2s ease;
}
.ai-selecting-image img:hover {
outline: 2px solid white;
outline-offset: 2px;
}
/* 移动端样式优化 */
@media (max-width: 768px) {
.ai-floating-btn {
width: 40px;
height: 40px;
touch-action: none;
}
.ai-floating-btn svg {
width: 24px;
height: 24px;
}
.ai-config-modal {
width: 90%;
min-width: auto;
max-width: 400px;
padding: 15px;
margin: 10px;
box-sizing: border-box;
}
.ai-config-modal .button-group {
margin-top: 15px;
flex-direction: row;
justify-content: space-between;
gap: 10px;
}
.ai-config-modal .button-group button {
flex: 1;
min-height: 44px;
font-size: 16px;
padding: 10px;
margin: 0;
}
.ai-result-modal {
width: 95%;
min-width: auto;
max-width: 90%;
margin: 10px;
padding: 15px;
}
.ai-modal-overlay {
padding: 10px;
box-sizing: border-box;
}
.ai-config-modal button,
.ai-config-modal .input-icon,
.ai-config-modal select,
.ai-config-modal input {
min-height: 44px;
padding: 10px;
font-size: 16px;
}
.ai-config-modal textarea {
min-height: 100px;
font-size: 16px;
padding: 10px;
}
.ai-config-modal .input-icon {
width: 44px;
height: 44px;
font-size: 20px;
}
.ai-config-modal {
max-height: 90vh;
overflow-y: auto;
-webkit-overflow-scrolling: touch;
}
}
`);
// 全局变量
let isSelectionMode = false;
// 定义默认提示词
const DEFAULT_PROMPT = "I will give you a picture, help me describe the main content of the picture. If there are people in the picture, describe their clothing, posture, and expressions, and give a simple compliment. Answer in Chinese";
// 在全局变量部分添加
const DEFAULT_API_KEY = '';
const DEFAULT_API_ENDPOINT = 'https://generativelanguage.googleapis.com/v1/models/gemini-2.0-flash-exp:generateContent';
const DEFAULT_MODEL = 'gemini-2.0-flash-exp';
// 添加支持的图片格式
const SUPPORTED_MIME_TYPES = [
'image/png',
'image/jpeg',
'image/webp',
'image/heic',
'image/heif'
];
const MAX_FILE_SIZE = 7 * 1024 * 1024; // 7MB
const TARGET_FILE_SIZE = 1 * 1024 * 1024; // 1MB
// 添加日志函数
function log(message, data = null) {
const timestamp = new Date().toISOString();
if (data) {
console.log(`[Gemini] ${timestamp} ${message}:`, data);
} else {
console.log(`[Gemini] ${timestamp} ${message}`);
}
}
// 修改图片压缩函数
async function compressImage(base64Image, mimeType) {
log('开始压缩图片', { mimeType });
return new Promise((resolve, reject) => {
const img = new Image();
img.onload = () => {
let quality = 0.9;
let canvas = document.createElement('canvas');
let ctx = canvas.getContext('2d');
let width = img.width;
let height = img.height;
log('原始图片尺寸', { width, height });
const MAX_DIMENSION = 2048;
if (width > MAX_DIMENSION || height > MAX_DIMENSION) {
const ratio = Math.min(MAX_DIMENSION / width, MAX_DIMENSION / height);
width *= ratio;
height *= ratio;
log('调整后的图片尺寸', { width, height });
}
canvas.width = width;
canvas.height = height;
ctx.drawImage(img, 0, 0, width, height);
const compress = () => {
const base64 = canvas.toDataURL(mimeType, quality);
const size = Math.ceil((base64.length * 3) / 4);
log('当前压缩质量和大小', { quality, size: `${(size / 1024 / 1024).toFixed(2)}MB` });
if (size > TARGET_FILE_SIZE && quality > 0.1) {
quality -= 0.1;
compress();
} else {
log('压缩完成', { finalQuality: quality, finalSize: `${(size / 1024 / 1024).toFixed(2)}MB` });
resolve(base64.split(',')[1]);
}
};
compress();
};
img.onerror = (error) => {
log('图片加载失败', error);
reject(error);
};
img.src = `data:${mimeType};base64,${base64Image}`;
});
}
// 修改图片上传函数
async function uploadImageToGemini(base64Image, mimeType) {
try {
log('开始上传图片', { mimeType });
if (!SUPPORTED_MIME_TYPES.includes(mimeType)) {
throw new Error('不支持的图片格式，仅支持 PNG、JPEG、WEBP、HEIC、HEIF 格式');
}
const originalSize = Math.ceil((base64Image.length * 3) / 4);
log('原始文件大小', `${(originalSize / 1024 / 1024).toFixed(2)}MB`);
let finalBase64 = base64Image;
if (originalSize > MAX_FILE_SIZE) {
log('图片超过大小限制，开始压缩');
finalBase64 = await compressImage(base64Image, mimeType);
}
// 转换为二进制数据
const binaryData = atob(finalBase64);
const bytes = new Uint8Array(binaryData.length);
for (let i = 0; i < binaryData.length; i++) {
bytes[i] = binaryData.charCodeAt(i);
}
const blob = new Blob([bytes], { type: mimeType });
log('准备上传的文件大小', `${(blob.size / 1024 / 1024).toFixed(2)}MB`);
// 第一步：发起 resumable 上传请求
log('发起 resumable 上传请求');
const initResponse = await fetch(`https://generativelanguage.googleapis.com/upload/v1beta/files?key=${DEFAULT_API_KEY}`, {
method: 'POST',
headers: {
'X-Goog-Upload-Protocol': 'resumable',
'X-Goog-Upload-Command': 'start',
'X-Goog-Upload-Header-Content-Length': blob.size.toString(),
'X-Goog-Upload-Header-Content-Type': mimeType,
'Content-Type': 'application/json'
},
body: JSON.stringify({
file: {
display_name: `image_${Date.now()}.${mimeType.split('/')[1]}`
}
})
});
// 从响应头中获取上传 URL
const uploadUrl = initResponse.headers.get('x-goog-upload-url');
if (!uploadUrl) {
throw new Error('未能获取上传 URL');
}
log('获取到上传 URL', uploadUrl);
// 第二步：上传实际的图片数据
log('开始上传图片数据');
const uploadResponse = await fetch(uploadUrl, {
method: 'POST',
headers: {
'Content-Length': blob.size.toString(),
'X-Goog-Upload-Offset': '0',
'X-Goog-Upload-Command': 'upload, finalize'
},
body: blob
});
const data = await uploadResponse.json();
log('上传响应数据', data);
if (data.file && data.file.uri) {
log('文件上传成功', { fileUri: data.file.uri });
return data.file.uri;
} else {
log('上传响应数据异常', data);
throw new Error(`文件上传失败: ${JSON.stringify(data)}`);
}
} catch (error) {
log('上传图片失败', error);
throw error;
}
}
// 修改 imageToBase64 函数，添加跨域处理
async function imageToBase64(imgElement) {
return new Promise((resolve, reject) => {
try {
// 创建新的图片对象来处理跨域
const img = new Image();
img.crossOrigin = 'anonymous'; // 关键是添加这个属性
img.onload = () => {
const canvas = document.createElement('canvas');
canvas.width = img.naturalWidth;
canvas.height = img.naturalHeight;
const ctx = canvas.getContext('2d');
try {
ctx.drawImage(img, 0, 0);
// 获取图片的实际 MIME 类型
let mimeType = 'image/jpeg'; // 默认值
const src = imgElement.src;
if (src.startsWith('data:')) {
mimeType = src.split(';')[0].split(':')[1];
} else {
const extension = src.split('.').pop().toLowerCase();
const mimeMap = {
'png': 'image/png',
'jpg': 'image/jpeg',
'jpeg': 'image/jpeg',
'webp': 'image/webp',
'heic': 'image/heic',
'heif': 'image/heif'
};
mimeType = mimeMap[extension] || 'image/jpeg';
}
// 返回 base64 数据和 MIME 类型
const base64 = canvas.toDataURL(mimeType).split(',')[1];
resolve({
base64,
mimeType
});
} catch (e) {
// 如果跨域请求失败，尝试直接通过 fetch 获取图片
log('Canvas 绘制失败，尝试直接获取图片', e);
fetchImageAsBase64(imgElement.src).then(resolve).catch(reject);
}
};
img.onerror = () => {
// 如果加载失败，尝试直接通过 fetch 获取图片
log('图片加载失败，尝试直接获取图片');
fetchImageAsBase64(imgElement.src).then(resolve).catch(reject);
};
// 设置图片源
img.src = imgElement.src;
// 如果图片已经被缓存，可能不会触发 onload
if (img.complete) {
img.onload();
}
} catch (error) {
reject(error);
}
});
}
// 添加通过 fetch 获取图片的函数
async function fetchImageAsBase64(url) {
try {
log('开始通过 fetch 获取图片', url);
const response = await fetch(url);
const blob = await response.blob();
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onloadend = () => {
const base64 = reader.result.split(',')[1];
resolve({
base64,
mimeType: blob.type
});
};
reader.onerror = reject;
reader.readAsDataURL(blob);
});
} catch (error) {
log('Fetch 获取图片失败', error);
throw new Error('无法获取图片数据');
}
}
// 修改生成描述的函数
async function generateImageDescription(imageBase64, prompt, mimeType) {
try {
log('开始生成图片描述');
log('使用的提示词', prompt);
const fileUri = await uploadImageToGemini(imageBase64, mimeType);
log('开始调用生成接口');
// 完全按照 demo-gemini.sh 的请求格式修改
const requestBody = {
contents: [{
parts: [
{
text: prompt || DEFAULT_PROMPT
},
{
file_data: { // 注意这里是 file_data 而不是 fileData
mime_type: mimeType, // 使用下划线格式
file_uri: fileUri // 使用下划线格式
}
}
]
}]
};
log('请求参数', requestBody);
// 修改请求 URL，使用 v1beta 版本的 API
const response = await fetch(`https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash-exp:generateContent?key=${DEFAULT_API_KEY}`, {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(requestBody)
});
const data = await response.json();
log('生成接口响应', data);
// 解析响应数据
if (data.candidates && data.candidates[0] && data.candidates[0].content) {
const text = data.candidates[0].content.parts[0].text;
log('成功生成描述');
return text;
} else {
throw new Error(data.error?.message || '无法获取图片描述');
}
} catch (error) {
log('生成描述失败', error);
throw error;
}
}
// 修改 API 检测功能
async function checkApiKey(apiKey) {
try {
log('开始验证 API Key');
const response = await fetch(`https://generativelanguage.googleapis.com/v1/models/gemini-2.0-flash-exp`, {
headers: {
'x-goog-api-key': apiKey
}
});
const data = await response.json();
log('API 验证响应', data);
if (data.name && data.name.includes('gemini-2.0-flash-exp')) {
log('API Key 验证成功');
return [data];
}
throw new Error('无效的 API Key 或模型不可用');
} catch (error) {
log('API 验证失败', error);
throw new Error(`API 验证失败: ${error.message}`);
}
}
// 显示toast提示
function showToast(message, duration = 3000) {
const toast = document.createElement('div');
toast.className = 'ai-toast';
toast.textContent = message;
document.body.appendChild(toast);
setTimeout(() => {
toast.remove();
}, duration);
}
// 进入图片选择模式
function enterImageSelectionMode() {
if (isSelectionMode) return;
isSelectionMode = true;
const floatingBtn = document.querySelector('.ai-floating-btn');
if (floatingBtn) {
floatingBtn.style.display = 'none';
}
const overlay = document.createElement('div');
overlay.className = 'ai-selection-overlay';
document.body.appendChild(overlay);
document.body.classList.add('ai-selecting-image');
const clickHandler = async function (e) {
if (!isSelectionMode) return;
if (e.target.tagName === 'IMG') {
e.preventDefault();
e.stopPropagation();
try {
showToast('正在生成图片描述...');
// 获取图片的 base64 编码和 MIME 类型
const { base64, mimeType } = await imageToBase64(e.target);
// 获取用户设置的提示词
const customPrompt = GM_getValue('customPrompt', DEFAULT_PROMPT);
// 调用 Gemini API 获取描述
const description = await generateImageDescription(base64, customPrompt, mimeType);
// 创建结果展示模态框
const modalOverlay = document.createElement('div');
modalOverlay.className = 'ai-modal-overlay';
modalOverlay.innerHTML = `
<div class="ai-result-modal">
<h3>图片描述结果</h3>
<div class="description-code" title="点击复制">
<code>${description}</code>
</div>
<div class="copy-hint">点击上方文本可复制</div>
<button class="close-button">×</button>
</div>
`;
document.body.appendChild(modalOverlay);
// 添加复制功能
const codeBlock = modalOverlay.querySelector('.description-code');
codeBlock.addEventListener('click', () => {
navigator.clipboard.writeText(description);
showToast('已复制到剪贴板');
});
// 添加关闭功能
const closeButton = modalOverlay.querySelector('.close-button');
closeButton.addEventListener('click', () => modalOverlay.remove());
modalOverlay.addEventListener('click', (e) => {
if (e.target === modalOverlay) {
modalOverlay.remove();
}
});
} catch (error) {
showToast(`生成描述失败: ${error.message}`);
}
exitImageSelectionMode();
}
};
document.addEventListener('click', clickHandler, true);
const escHandler = (e) => {
if (e.key === 'Escape') {
exitImageSelectionMode();
}
};
document.addEventListener('keydown', escHandler);
window._imageSelectionHandlers = {
click: clickHandler,
keydown: escHandler
};
}
// 退出图片选择模式
function exitImageSelectionMode() {
isSelectionMode = false;
const floatingBtn = document.querySelector('.ai-floating-btn');
if (floatingBtn) {
floatingBtn.style.display = 'flex';
}
const overlay = document.querySelector('.ai-selection-overlay');
if (overlay) {
overlay.remove();
}
document.body.classList.remove('ai-selecting-image');
if (window._imageSelectionHandlers) {
document.removeEventListener('click', window._imageSelectionHandlers.click, true);
document.removeEventListener('keydown', window._imageSelectionHandlers.keydown);
window._imageSelectionHandlers = null;
}
}
// 修改配置界面创建函数
function createConfigUI() {
const existingModal = document.querySelector('.ai-modal-overlay');
if (existingModal) {
existingModal.remove();
}
const overlay = document.createElement('div');
overlay.className = 'ai-modal-overlay';
const modal = document.createElement('div');
modal.className = 'ai-config-modal';
modal.innerHTML = `
<h3>AI图像描述配置</h3>
<div class="input-group">
<label>API Endpoint:</label>
<div class="input-wrapper">
<input type="text" id="ai-endpoint" placeholder="https://api.openai.com" value="${DEFAULT_API_ENDPOINT}" readonly>
</div>
</div>
<div class="input-group">
<label>API Key:</label>
<div class="input-wrapper">
<input type="text" id="ai-apikey" value="${DEFAULT_API_KEY}" readonly>
</div>
</div>
<div class="input-group">
<label>使用模型:</label>
<select id="ai-model" disabled>
<option value="${DEFAULT_MODEL}">${DEFAULT_MODEL}</option>
</select>
</div>
<div class="input-group">
<label>提示词:</label>
<div class="input-wrapper">
<textarea id="ai-prompt" rows="4" style="width: 100%; resize: vertical;">${GM_getValue('customPrompt', DEFAULT_PROMPT)}</textarea>
<span class="input-icon clear-icon" title="重置为默认值">↺</span>
</div>
</div>
<div class="button-group">
<button type="button" class="cancel-button" id="ai-cancel-config">取消</button>
<button type="button" class="save-button" id="ai-save-config">保存</button>
</div>
`;
overlay.appendChild(modal);
document.body.appendChild(overlay);
// 只保留提示词的重置功能
const clearButtons = modal.querySelectorAll('.clear-icon');
clearButtons.forEach(button => {
button.addEventListener('click', function (e) {
const input = this.parentElement.querySelector('textarea');
if (input && input.id === 'ai-prompt') {
input.value = DEFAULT_PROMPT;
input.focus();
}
});
});
// 修改保存按钮事件
const saveButton = modal.querySelector('#ai-save-config');
if (saveButton) {
saveButton.addEventListener('click', function (e) {
e.preventDefault();
e.stopPropagation();
showToast('配置已保存');
overlay.remove();
});
}
// 取消配置
const cancelButton = modal.querySelector('#ai-cancel-config');
if (cancelButton) {
cancelButton.addEventListener('click', function (e) {
e.preventDefault();
e.stopPropagation();
overlay.remove();
});
}
// 点击遮罩层关闭
overlay.addEventListener('click', function (e) {
if (e.target === overlay) {
overlay.remove();
}
});
// 阻止模态框内的点击事件冒泡
modal.addEventListener('click', function (e) {
e.stopPropagation();
});
}
// 创建悬浮按钮
function createFloatingButton() {
const btn = document.createElement('div');
btn.className = 'ai-floating-btn';
btn.innerHTML = `
<svg viewBox="0 0 24 24">
<path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.42 0-8-3.58-8-8s3.58-8 8-8 8 3.58 8 8-3.58 8-8 8zm0-14c-3.31 0-6 2.69-6 6s2.69 6 6 6 6-2.69 6-6-2.69-6-6-6zm0 10c-2.21 0-4-1.79-4-4h2c0-1.1.9-2 2-2s2 .9 2 2c0 2-3 1.75-3 5h2c0-2.25 3-2.5 3-5 0-2.21-1.79-4-4-4z"/>
</svg>
`;
const savedPos = JSON.parse(GM_getValue('btnPosition', '{"x": 20, "y": 20}'));
btn.style.left = (savedPos.x || 20) + 'px';
btn.style.top = (savedPos.y || 20) + 'px';
btn.style.right = 'auto';
btn.style.bottom = 'auto';
let isDragging = false;
let hasMoved = false;
let startX, startY;
let initialLeft, initialTop;
let longPressTimer;
let touchStartTime;
// 触屏事件处理
btn.addEventListener('touchstart', function (e) {
e.preventDefault();
touchStartTime = Date.now();
longPressTimer = setTimeout(() => {
exitImageSelectionMode();
createConfigUI();
}, 500);
const touch = e.touches[0];
startX = touch.clientX;
startY = touch.clientY;
const rect = btn.getBoundingClientRect();
initialLeft = rect.left;
initialTop = rect.top;
});
btn.addEventListener('touchmove', function (e) {
e.preventDefault();
clearTimeout(longPressTimer);
const touch = e.touches[0];
const deltaX = touch.clientX - startX;
const deltaY = touch.clientY - startY;
if (Math.abs(deltaX) > 5 || Math.abs(deltaY) > 5) {
hasMoved = true;
}
const newLeft = Math.max(0, Math.min(window.innerWidth - btn.offsetWidth, initialLeft + deltaX));
const newTop = Math.max(0, Math.min(window.innerHeight - btn.offsetHeight, initialTop + deltaY));
btn.style.left = newLeft + 'px';
btn.style.top = newTop + 'px';
});
btn.addEventListener('touchend', function (e) {
e.preventDefault();
clearTimeout(longPressTimer);
const touchDuration = Date.now() - touchStartTime;
if (!hasMoved && touchDuration < 500) {
enterImageSelectionMode();
}
if (hasMoved) {
const rect = btn.getBoundingClientRect();
GM_setValue('btnPosition', JSON.stringify({
x: rect.left,
y: rect.top
}));
}
hasMoved = false;
});
// 鼠标事件处理
btn.addEventListener('click', function (e) {
if (e.button === 0 && !hasMoved) {
enterImageSelectionMode();
e.stopPropagation();
}
hasMoved = false;
});
btn.addEventListener('contextmenu', function (e) {
e.preventDefault();
exitImageSelectionMode();
createConfigUI();
});
// 拖拽相关事件
function dragStart(e) {
if (e.target === btn || btn.contains(e.target)) {
isDragging = true;
hasMoved = false;
const rect = btn.getBoundingClientRect();
startX = e.clientX;
startY = e.clientY;
initialLeft = rect.left;
initialTop = rect.top;
e.preventDefault();
}
}
function drag(e) {
if (isDragging) {
e.preventDefault();
const deltaX = e.clientX - startX;
const deltaY = e.clientY - startY;
if (Math.abs(deltaX) > 5 || Math.abs(deltaY) > 5) {
hasMoved = true;
}
const newLeft = Math.max(0, Math.min(window.innerWidth - btn.offsetWidth, initialLeft + deltaX));
const newTop = Math.max(0, Math.min(window.innerHeight - btn.offsetHeight, initialTop + deltaY));
btn.style.left = newLeft + 'px';
btn.style.top = newTop + 'px';
}
}
function dragEnd(e) {
if (isDragging) {
isDragging = false;
const rect = btn.getBoundingClientRect();
GM_setValue('btnPosition', JSON.stringify({
x: rect.left,
y: rect.top
}));
}
}
btn.addEventListener('mousedown', dragStart);
document.addEventListener('mousemove', drag);
document.addEventListener('mouseup', dragEnd);
document.body.appendChild(btn);
return btn;
}
// 初始化
function initialize() {
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', () => {
createFloatingButton();
});
} else {
createFloatingButton();
}
}
// 启动脚本
initialize();
})();
