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content.js
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function parseWebContent() {
// 克隆当前文档以供解析，不影响原始页面
const docClone = document.cloneNode(true);
// 在克隆的文档中移除不需要的元素
const scripts = docClone.querySelectorAll('script');
const styles = docClone.querySelectorAll('style, link[rel="stylesheet"]');
const headers = docClone.querySelectorAll('header, nav');
const footers = docClone.querySelectorAll('footer');
// 从克隆的文档中移除元素
[...scripts, ...styles, ...headers, ...footers].forEach(element => {
if (element.parentNode) {
element.parentNode.removeChild(element);
}
});
// 获取主要内容（从body中提取）
const mainContent = docClone.querySelector('body');
// 如果找到了body元素，获取其文本内容
const textContent = mainContent ? mainContent.innerText : '';
// 清理文本
return textContent
.replace(/\s+/g, ' ') // 将多个空白字符替换为单个空格
.trim(); // 移除首尾空白
}
// 创建对话框
function createDialog() {
// 先移除可能存在的旧对话框
const existingDialog = document.getElementById('ai-assistant-dialog');
if (existingDialog) {
existingDialog.remove();
}
const dialog = document.createElement('div');
dialog.id = 'ai-assistant-dialog';
// 复制popup.html的内容结构
dialog.innerHTML = `
<div class="container">
<div class="header">
<div class="tokens-counter">Tokens: 0</div>
</div>
<div id="chat-container" class="chat-container">
<div id="messages" class="messages"></div>
</div>
<div class="input-container">
<textarea id="userInput" placeholder="请输入您的问题..." rows="2"></textarea>
<button id="askButton" class="send-button">
</button>
</div>
</div>
<div class="resize-handle"></div>
`;
// 添加拖动功能
const container = dialog.querySelector('.container');
const header = dialog.querySelector('.header');
// 声明拖动相关的变量
let isDragging = false;
let dragCurrentX;
let dragCurrentY;
let dragInitialX;
let dragInitialY;
// 创建遮罩层
const overlay = document.createElement('div');
overlay.className = 'dialog-overlay';
document.body.appendChild(overlay);
// 修改拖动相关代码
header.addEventListener('mousedown', (e) => {
if (e.target.closest('.toggle-ball')) return;
isDragging = true;
dialog.style.transition = 'none';
const rect = dialog.getBoundingClientRect();
dragInitialX = e.clientX - rect.left;
dragInitialY = e.clientY - rect.top;
// 显示遮罩层
overlay.classList.add('dragging');
});
// 使用requestAnimationFrame优化拖动
let dragAnimationFrame;
document.addEventListener('mousemove', (e) => {
if (isDragging) {
e.preventDefault();
// 取消之前的动画帧
if (dragAnimationFrame) {
cancelAnimationFrame(dragAnimationFrame);
}
// 请求新的动画帧
dragAnimationFrame = requestAnimationFrame(() => {
dragCurrentX = e.clientX - dragInitialX;
dragCurrentY = e.clientY - dragInitialY;
// 确保不会超出屏幕边界
const maxX = window.innerWidth - dialog.offsetWidth;
const maxY = window.innerHeight - dialog.offsetHeight;
dragCurrentX = Math.max(0, Math.min(dragCurrentX, maxX));
dragCurrentY = Math.max(0, Math.min(dragCurrentY, maxY));
// 直接设置left和top
dialog.style.left = `${dragCurrentX}px`;
dialog.style.top = `${dragCurrentY}px`;
});
}
});
document.addEventListener('mouseup', () => {
if (isDragging) {
isDragging = false;
dialog.style.transition = '';
// 隐藏遮罩层
overlay.classList.remove('dragging');
if (dragAnimationFrame) {
cancelAnimationFrame(dragAnimationFrame);
}
// 保存位置
chrome.storage.sync.set({
dialogPosition: {
left: dialog.style.left,
top: dialog.style.top
}
});
}
});
// 从存储中加载对话框位置
chrome.storage.sync.get({
dialogPosition: {
left: 'auto',
top: 'auto',
isCustomPosition: false
}
}, (items) => {
// 只有当存在自定义位置时才应用
if (items.dialogPosition.isCustomPosition) {
dialog.style.left = items.dialogPosition.left;
dialog.style.top = items.dialogPosition.top;
}
});
// 调整大小功能
const resizeHandle = dialog.querySelector('.resize-handle');
resizeHandle.addEventListener('mousedown', (e) => {
isResizing = true;
dialog.style.transition = 'none'; // 禁用过渡动画
resizeInitialWidth = dialog.offsetWidth;
resizeInitialHeight = dialog.offsetHeight;
resizeInitialX = e.clientX;
resizeInitialY = e.clientY;
// 添加临时的全局事件监听器
document.addEventListener('mousemove', handleResize);
document.addEventListener('mouseup', stopResize);
e.preventDefault();
e.stopPropagation();
});
// 使用requestAnimationFrame优化调整大小
let resizeAnimationFrame;
function handleResize(e) {
if (!isResizing) return;
// 取消之前的动画帧
if (resizeAnimationFrame) {
cancelAnimationFrame(resizeAnimationFrame);
}
// 请求新的动画帧
resizeAnimationFrame = requestAnimationFrame(() => {
const deltaX = e.clientX - resizeInitialX;
const deltaY = e.clientY - resizeInitialY;
const newWidth = Math.max(300, resizeInitialWidth + deltaX);
const newHeight = Math.max(400, resizeInitialHeight + deltaY);
const rect = dialog.getBoundingClientRect();
const maxWidth = window.innerWidth - rect.left - 20;
const maxHeight = window.innerHeight - rect.top - 20;
const finalWidth = Math.min(newWidth, maxWidth);
const finalHeight = Math.min(newHeight, maxHeight);
dialog.style.width = `${finalWidth}px`;
dialog.style.height = `${finalHeight}px`;
// 保存尺寸
chrome.storage.sync.set({
dialogSize: {
width: finalWidth,
height: finalHeight
}
});
});
}
function stopResize() {
if (isResizing) {
isResizing = false;
dialog.style.transition = ''; // 恢复过渡动画
document.removeEventListener('mousemove', handleResize);
document.removeEventListener('mouseup', stopResize);
if (resizeAnimationFrame) {
cancelAnimationFrame(resizeAnimationFrame);
}
}
}
// 从存储中加载对话框尺寸
chrome.storage.sync.get({
dialogSize: {
width: 400,
height: 500
}
}, (items) => {
dialog.style.width = `${items.dialogSize.width}px`;
dialog.style.height = `${items.dialogSize.height}px`;
});
document.body.appendChild(dialog);
// 修改点击外部关闭功能
document.addEventListener('mousedown', async (e) => {
const ball = document.getElementById('ai-assistant-ball');
const contextMenu = document.querySelector('.context-menu');
// 获取自动隐藏设置
const settings = await chrome.storage.sync.get({
autoHideDialog: true // 默认开启
});
if (settings.autoHideDialog && // 检查设置
dialog.classList.contains('show') &&
!dialog.contains(e.target) &&
(!ball || !ball.contains(e.target)) &&
(!contextMenu || !contextMenu.contains(e.target))) {
dialog.classList.remove('show');
}
});
return dialog;
}
// 修改createFloatingBall函
function createFloatingBall() {
// 创建容器
const container = document.createElement('div');
container.className = 'ball-container';
// 创建悬浮球
const ball = document.createElement('div');
ball.id = 'ai-assistant-ball';
ball.innerHTML = `<svg t="1731757557572" class="icon" width="32" height="32" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="1317" width="128" height="128">
<path d="M200 935.744a39.517867 39.517867 0 0 1-14.122667-7.185067c-12.906667-10.295467-18.602667-27.2896-14.741333-43.4688a1295.863467 1295.863467 0 0 0 17.207467-520c-5.6448-33.216 0.418133-66.760533 17.5488-96.443733 17.156267-29.563733 43.498667-51.648 75.656533-60.497067h0.008533l417.591467-114.24c66.0352-19.434667 144.533333 49.792 162.602667 156.258134a1978.666667 1978.666667 0 0 1 27.144533 397.806933c-3.4432 107.592533-71.6928 186.248533-139.758933 176.008533l-64.823467-8.494933c-22.203733-3.042133-36.8768-29.952-33.8944-60.1984 3.008-30.2336 22.664533-53.713067 45.038933-52.343467 21.7472 1.463467 43.485867 2.922667 65.233067 4.3776 24.170667 1.783467 45.969067-26.0096 47.133867-62.007466a1897.941333 1897.941333 0 0 0-26.030934-381.499734c-6.062933-35.618133-31.466667-60.3136-55.168-55.2576l-424.0128 87.466667c-11.4176 2.363733-21.1584 9.570133-27.6096 20.078933-6.4512 10.530133-8.802133 22.993067-6.698666 35.345067a1377.0368 1377.0368 0 0 1 2.346666 449.117867 1341.696 1341.696 0 0 0 118.4512-104.448c8.251733-8.1792 18.862933-12.475733 29.602134-11.758934l293.009066 19.6736c22.340267 1.365333 38.839467 28.650667 35.639467 60.842667-3.1744 32.200533-24.704 55.765333-46.882133 52.7232l-274.5216-35.972267c-62.229333 57.1136-127.6544 106.965333-194.973867 149.384534-9.629867 6.071467-20.8 7.522133-30.976 4.731733z" p-id="1318" fill="white"></path>
<path d="M635.733333 488.533333m-59.733333 0a59.733333 59.733333 0 1 0 119.466667 0 59.733333 59.733333 0 1 0-119.466667 0Z" p-id="1319" fill="white"></path>
<path d="M460.864 507.733333m-50.133333 0a50.133333 50.133333 0 1 0 100.266666 0 50.133333 50.133333 0 1 0-100.266666 0Z" p-id="1320" fill="white"></path>
</svg>`;
// 创建设置按钮
const settingsButton = document.createElement('div');
settingsButton.className = 'settings-button';
settingsButton.innerHTML = '<svg t="1731757768104" class="icon" width="24" height="24" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="1612" width="128" height="128"><path d="M550.4 924.404h-49.1c-57.7 0-104.6-46.9-104.6-104.6-0.1-7.2-2.1-14.5-5.9-20.9-6.6-11.2-16.3-18.6-27.9-21.7-11.6-3.1-23.7-1.5-34.1 4.6-51.6 28.6-115.3 10.1-143.2-40.4l-24.5-42.2c-0.1-0.1-0.1-0.2-0.2-0.3v-0.1c-28.5-49.8-11.2-113.5 38.5-142 14-8.1 22.8-23.3 22.8-39.5s-8.7-31.4-22.9-39.6c-49.8-28.8-67-92.8-38.3-142.6l26.6-43.8c28.5-49.3 92.5-66.3 142.3-37.7 6.7 4 14.1 6 21.6 6.1h0.1c24.6 0 45.1-20.2 45.4-45.1 0-57.5 46.7-104.2 104-104.2h49.3c61 1.9 106.4 50.3 104.6 107.9 0.1 6.3 2.1 13.6 5.9 20 6.4 10.8 16.2 18.2 27.9 21.2s23.8 1.2 34.2-4.9c50-28.8 114.1-11.7 143 38l24.5 42.5 1.5 3c26.2 49.3 8.8 111.3-39.7 139.6-7.1 4-12.8 9.7-16.7 16.7-6.4 11.1-7.9 23.3-4.7 34.9 3.2 11.6 10.7 21.3 21.2 27.3 25 14.6 42.1 37.1 49.2 64 7.1 26.9 3.2 54.9-10.8 78.9l-26 43.5c-28.7 49.3-92.6 66.5-142.6 37.8-6.6-3.8-14.3-6-22.1-6.2-12 0.1-23.4 4.9-31.8 13.5-8.5 8.6-13.1 20-13 32-0.4 57.7-47.3 104.3-104.5 104.3z m-199.2-207.6c8.9 0 17.9 1.2 26.7 3.5 26.8 7.1 49.3 24.2 63.2 48.2 9.3 15.7 14.2 33.2 14.4 51 0 25.5 20.5 46 45.7 46h49.1c25 0 45.5-20.4 45.7-45.4-0.2-27.4 10.4-53.6 30-73.4 19.5-19.8 45.6-30.8 73.4-31 19.4 0.5 36.6 5.3 51.7 14 21.9 12.5 49.8 5 62.4-16.7l26.1-43.6c5.9-10.1 7.6-22.3 4.5-34-3.1-11.7-10.5-21.4-20.9-27.5-24.6-14-42-36.4-49.3-63.2-7.3-26.8-3.8-54.9 10-79 9.6-16.8 22.9-30.1 38.9-39.2 21.3-12.4 28.8-40.3 16.5-62-0.5-0.8-0.8-1.6-1.2-2.4l-23.2-40.2c-12.5-21.6-40.5-29.2-62.2-16.7-23.6 14-51.6 17.9-78.5 11.1-26.9-6.9-49.5-23.9-63.7-47.8-9.3-15.7-14.2-33.2-14.4-51.1 0.8-26.4-19-47.5-44.2-48.3h-50.8c-24.9 0-45.1 20.3-45.1 45.2-0.8 57.8-47.7 104.1-104.6 104.1h-0.2c-18.1-0.2-35.5-5.1-50.9-14.2-21.5-12.4-49.4-4.8-62 16.9l-26.6 43.7c-12.1 21.1-4.6 49.1 17.1 61.7 32.2 18.6 52.3 53.3 52.3 90.6s-20.1 72-52.3 90.6c-21.7 12.4-29.2 40.1-16.8 61.7 0 0.1 0.1 0.1 0.1 0.2l24.8 42.8c12.5 22.6 40.3 30.6 62.4 18.5 16-9.3 33.8-14.1 51.9-14.1zM525.9 650.204c-73.3 0-133-59.7-133-133s59.7-133 133-133 133 59.7 133 133c0 73.4-59.7 133-133 133z m0-207c-40.8 0-74.1 33.2-74.1 74.1s33.2 74.1 74.1 74.1 74.1-33.2 74.1-74.1-33.3-74.1-74.1-74.1z" p-id="1613" fill="#ffffff"></path></svg>';
settingsButton.title = '设置';
// 创建对话框（如果不存在）
let dialog = document.getElementById('ai-assistant-dialog');
if (!dialog) {
dialog = createDialog();
// 初始化对话框内容（只初始化一次）
initializeDialog(dialog);
}
// 设置按钮点击事件
settingsButton.addEventListener('click', (e) => {
e.stopPropagation(); // 防止触发悬浮球的点击事件
chrome.runtime.sendMessage({ action: 'openOptions' });
});
// 悬浮球点击事件
ball.addEventListener('click', () => {
const isVisible = dialog.classList.contains('show');
if (!isVisible) {
// 计算对话框的理想位置
const ballRect = ball.getBoundingClientRect();
const windowWidth = window.innerWidth;
const windowHeight = window.innerHeight;
const dialogWidth = dialog.offsetWidth || 400; // 使用当前宽度或默认值
const dialogHeight = dialog.offsetHeight || 500; // 使用当前高度或默认值
// 默认尝试将对话框放在悬浮球的左侧
let left = ballRect.left - dialogWidth - 20; // 20px作为间距
let top = Math.min(
ballRect.top,
windowHeight - dialogHeight - 20
);
// 如果左侧放不下，尝试放在右侧
if (left < 20) {
left = ballRect.right + 20;
// 如果右侧也放不下，放在屏幕中央，但要避免被悬浮球遮挡
if (left + dialogWidth > windowWidth - 20) {
// 如果悬浮球在右半部分，对话框放在左半部分
if (ballRect.left > windowWidth / 2) {
left = 20;
} else {
// 否则放在右半部分
left = windowWidth - dialogWidth - 20;
}
}
}
// 确保顶部有足够空间，否则将对话框放在下方
if (top < 20) {
top = Math.min(
ballRect.bottom + 20,
windowHeight - dialogHeight - 20
);
}
// 最终的边界检查
left = Math.max(20, Math.min(left, windowWidth - dialogWidth - 20));
top = Math.max(20, Math.min(top, windowHeight - dialogHeight - 20));
// 应用位置
dialog.style.left = `${left}px`;
dialog.style.top = `${top}px`;
dialog.style.right = 'auto';
dialog.style.bottom = 'auto';
// 显示对话框
dialog.classList.add('show');
} else {
// 隐藏对话框时不改变位置
dialog.classList.remove('show');
}
});
// 将悬浮球和设置按钮添加到容器中
container.appendChild(ball);
container.appendChild(settingsButton);
// 修改拖拽功能
let isDragging = false;
let currentX;
let currentY;
let initialX;
let initialY;
ball.addEventListener('mousedown', (e) => {
isDragging = true;
const rect = container.getBoundingClientRect();
initialX = e.clientX - rect.left;
initialY = e.clientY - rect.top;
});
document.addEventListener('mousemove', (e) => {
if (isDragging) {
e.preventDefault();
currentX = e.clientX - initialX;
currentY = e.clientY - initialY;
// 确保不会超出屏幕边界
const maxX = window.innerWidth - container.offsetWidth;
const maxY = window.innerHeight - container.offsetHeight;
const edgeThreshold = ball.offsetWidth / 2;
// 移除所有边缘类
ball.classList.remove('edge-left', 'edge-right', 'edge-top', 'edge-bottom');
// 检查是否靠近边缘并添加相应的类
let position = {};
if (currentX <= edgeThreshold) {
currentX = 0;
ball.classList.add('edge-left');
position = {
left: '0px',
top: `${currentY}px`,
right: 'auto',
bottom: 'auto',
edge: 'left'
};
} else if (currentX >= maxX - edgeThreshold) {
currentX = maxX;
ball.classList.add('edge-right');
position = {
right: '0px',
top: `${currentY}px`,
left: 'auto',
bottom: 'auto',
edge: 'right'
};
} else if (currentY <= edgeThreshold) {
currentY = 0;
ball.classList.add('edge-top');
position = {
top: '0px',
left: `${currentX}px`,
right: 'auto',
bottom: 'auto',
edge: 'top'
};
} else if (currentY >= maxY - edgeThreshold) {
currentY = maxY;
ball.classList.add('edge-bottom');
position = {
bottom: '0px',
left: `${currentX}px`,
right: 'auto',
top: 'auto',
edge: 'bottom'
};
} else {
position = {
left: `${currentX}px`,
top: `${currentY}px`,
right: 'auto',
bottom: 'auto',
edge: null
};
}
// 应用位置到容器
Object.assign(container.style, position);
// 保存位置和边缘状态到存储
chrome.storage.sync.set({
ballPosition: position
});
}
});
document.addEventListener('mouseup', () => {
isDragging = false;
});
// 从存储中加载位置，并确保位置在可视区域内
chrome.storage.sync.get({
ballPosition: { right: '20px', bottom: '20px', left: 'auto', top: 'auto', edge: null }
}, (items) => {
// 获取容器和窗口尺寸
const containerRect = container.getBoundingClientRect();
const windowWidth = window.innerWidth;
const windowHeight = window.innerHeight;
// 解析保存的位置值
let position = items.ballPosition;
let left = position.left !== 'auto' ? parseInt(position.left) : null;
let right = position.right !== 'auto' ? parseInt(position.right) : null;
let top = position.top !== 'auto' ? parseInt(position.top) : null;
let bottom = position.bottom !== 'auto' ? parseInt(position.bottom) : null;
// 确保位置在可视区域内
if (left !== null) {
// 如果使用left定位
left = Math.min(Math.max(0, left), windowWidth - containerRect.width);
position = {
left: `${left}px`,
top: position.top,
right: 'auto',
bottom: position.bottom,
edge: position.edge
};
} else if (right !== null) {
// 如果使用right定位
right = Math.min(Math.max(0, right), windowWidth - containerRect.width);
position = {
right: `${right}px`,
top: position.top,
left: 'auto',
bottom: position.bottom,
edge: position.edge
};
}
if (top !== null) {
// 如果使用top定
top = Math.min(Math.max(0, top), windowHeight - containerRect.height);
position = {
...position,
top: `${top}px`,
bottom: 'auto'
};
} else if (bottom !== null) {
// 如果使用bottom定位
bottom = Math.min(Math.max(0, bottom), windowHeight - containerRect.height);
position = {
...position,
bottom: `${bottom}px`,
top: 'auto'
};
}
// 应用位置
Object.assign(container.style, position);
// 如果有边缘状态，添加相应的类
if (position.edge) {
ball.classList.add(`edge-${position.edge}`);
}
// 保存调整后的位置
chrome.storage.sync.set({ ballPosition: position });
});
// 添加窗口大小变化监听器
window.addEventListener('resize', () => {
// 获取当前位置
const rect = container.getBoundingClientRect();
const windowWidth = window.innerWidth;
const windowHeight = window.innerHeight;
// 确保位置在可视区内
let left = rect.left;
let top = rect.top;
// 调整位置
if (left + rect.width > windowWidth) {
left = windowWidth - rect.width;
}
if (top + rect.height > windowHeight) {
top = windowHeight - rect.height;
}
// 确保不会小于0
left = Math.max(0, left);
top = Math.max(0, top);
// 应用新位置
const position = {
left: `${left}px`,
top: `${top}px`,
right: 'auto',
bottom: 'auto',
edge: null // 重置边缘状态
};
Object.assign(container.style, position);
// 保存新位置
chrome.storage.sync.set({ ballPosition: position });
// 检查是否需要添加边缘类
const edgeThreshold = ball.offsetWidth / 2;
ball.classList.remove('edge-left', 'edge-right', 'edge-top', 'edge-bottom');
if (left <= edgeThreshold) {
ball.classList.add('edge-left');
position.edge = 'left';
} else if (left >= windowWidth - rect.width - edgeThreshold) {
ball.classList.add('edge-right');
position.edge = 'right';
}
if (top <= edgeThreshold) {
ball.classList.add('edge-top');
position.edge = 'top';
} else if (top >= windowHeight - rect.height - edgeThreshold) {
ball.classList.add('edge-bottom');
position.edge = 'bottom';
}
// 保存更新后的位置和边缘状态
chrome.storage.sync.set({ ballPosition: position });
});
document.body.appendChild(container);
return ball;
}
// 存储对话框和悬浮球的引用
let dialogInstance = null;
let ballInstance = null;
// 初始化marked
async function initMarked() {
try {
// 等待marked加载完成
if (typeof marked === 'undefined') {
// 如果marked还没有加载，等它加载完成
await new Promise((resolve, reject) => {
const checkMarked = () => {
if (typeof marked !== 'undefined') {
resolve();
} else {
setTimeout(checkMarked, 100);
}
};
checkMarked();
// 设置超时
setTimeout(() => reject(new Error('Marked加超时')), 5000);
});
}
// 配置marked选项
marked.setOptions({
breaks: true, // 将换行符转换为<br>
gfm: true, // 启用GitHub格的Markdown
headerIds: false, // 禁用标题ID以避免潜在的冲突
mangle: false // 禁用标题ID转义
});
return marked.parse;
} catch (error) {
console.error('Marked初化失败:', error);
return text => text; // 提供一个后备方案
}
}
// 修改错误处理和通知显示函数
function showNotification(message) {
// 移除可能存在的旧通知
const existingNotification = document.querySelector('.extension-notification');
if (existingNotification) {
existingNotification.remove();
}
const notification = document.createElement('div');
notification.className = 'extension-notification';
notification.style.cssText = `
position: fixed;
right: 20px;
top: 20px;
padding: 10px 20px;
background: rgba(0, 0, 0, 0.8);
color: white;
border-radius: 4px;
z-index: 10000;
font-size: 14px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
animation: fadeInOut 3s ease forwards;
`;
notification.textContent = message;
document.body.appendChild(notification);
// 3秒后自动移除
setTimeout(() => {
notification.remove();
}, 3000);
}
// 修改sendMessageWithRetry函数
async function sendMessageWithRetry(message, maxRetries = 3) {
let notificationShown = false; // 添加标记，避免重复显示通知
for (let i = 0; i < maxRetries; i++) {
try {
return await chrome.runtime.sendMessage(message);
} catch (error) {
if (error.message.includes('Extension context invalidated')) {
if (!notificationShown) {
console.log('Extension context invalidated, reloading page...');
// 显示通知
const notification = document.createElement('div');
notification.style.cssText = `
position: fixed;
right: 20px;
top: 20px;
padding: 10px 20px;
background: rgba(0, 0, 0, 0.8);
color: white;
border-radius: 4px;
z-index: 10000;
font-size: 14px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
`;
notification.textContent = '扩展已更新，请刷新页面以继续使用';
document.body.appendChild(notification);
// 3秒后自动移除提示
setTimeout(() => {
notification.remove();
}, 3000);
notificationShown = true; // 标记通知已显示
}
return;
}
if (i === maxRetries - 1) throw error;
await new Promise(resolve => setTimeout(resolve, Math.pow(2, i) * 100));
}
}
}
// 移除全局错误监听器中的通知显示
window.addEventListener('error', (event) => {
if (event.error && event.error.message.includes('Extension context invalidated')) {
event.preventDefault(); // 阻止错误继续传播
}
});
// 移除未处理Promise错误监听器中的通知显示
window.addEventListener('unhandledrejection', (event) => {
if (event.reason && event.reason.message &&
event.reason.message.includes('Extension context invalidated')) {
event.preventDefault(); // 阻止错误继续传播
}
});
// 修改checkAndSetBallVisibility函数
async function checkAndSetBallVisibility() {
try {
if (!chrome.runtime) {
showNotification('扩展已更新，请刷新页面以继续使用');
return;
}
const existingBall = document.getElementById('ai-assistant-ball');
const existingDialog = document.getElementById('ai-assistant-dialog');
if (!existingBall) {
createFloatingBall();
} else if (!existingDialog) {
const dialog = createDialog();
initializeDialog(dialog);
}
} catch (error) {
if (error.message.includes('Extension context invalidated')) {
showNotification('扩展已更新，请刷新页面以继续使用');
}
}
}
// 监听来自popup的消息
chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
try {
if (request.action === 'ping') {
sendResponse({ status: 'ok' });
} else if (request.action === 'getPageContent') {
const content = parseWebContent();
sendResponse({ content });
} else if (request.action === 'toggleFloatingBall') {
checkAndSetBallVisibility();
sendResponse({ status: 'ok' });
}
} catch (error) {
console.error('处理消息时出错:', error);
sendResponse({ error: error.message });
}
return true;
});
// 初始化时检查悬浮球状态
checkAndSetBallVisibility();
// 修改initializeDialog函数
async function initializeDialog(dialog) {
try {
const userInput = dialog.querySelector('#userInput');
const askButton = dialog.querySelector('#askButton');
const messagesContainer = dialog.querySelector('#messages');
const chatContainer = dialog.querySelector('#chat-container');
let isGenerating = false;
let currentPort = null;
let currentAnswer = '';
let userHasScrolled = false;
// 创建并添加滚动按钮
const scrollToBottomButton = createScrollToBottomButton(messagesContainer);
chatContainer.appendChild(scrollToBottomButton);
// 监听滚动事件
messagesContainer.addEventListener('scroll', () => {
// 计算是否滚动到底部（添加一个小的容差值）
const isAtBottom = Math.abs(
messagesContainer.scrollHeight -
messagesContainer.clientHeight -
messagesContainer.scrollTop
) < 30;
// 更新按钮显示状态
if (!isAtBottom) {
userHasScrolled = true;
scrollToBottomButton.style.display = 'block';
} else {
userHasScrolled = false;
scrollToBottomButton.style.display = 'none';
}
});
// 修改autoScroll函数
function autoScroll(force = false) {
const messagesContainer = document.querySelector('#ai-assistant-dialog .messages');
if (!messagesContainer) return;
// 如果强制滚动或者用户没有手动滚动
if (force || !userHasScrolled) {
// 使用requestAnimationFrame确保在DOM更新后滚动
requestAnimationFrame(() => {
// 再次使用requestAnimationFrame以确保渲染完成
requestAnimationFrame(() => {
// 使用scrollIntoView来确保最新消息可见
const messages = messagesContainer.children;
if (messages.length > 0) {
const lastMessage = messages[messages.length - 1];
lastMessage.scrollIntoView({ behavior: 'smooth', block: 'end' });
}
});
});
}
}
// 修改监听滚动事件的逻辑
messagesContainer.addEventListener('scroll', () => {
// 只有在不生成答案时才检测用户滚动
if (!isGenerating) {
const isAtBottom = Math.abs(
messagesContainer.scrollHeight -
messagesContainer.clientHeight -
messagesContainer.scrollTop
) < 30;
userHasScrolled = !isAtBottom;
}
});
// 监听消息容器的容化
const observer = new MutationObserver((mutations) => {
let shouldScroll = false;
for (const mutation of mutations) {
if (mutation.type === 'childList' || mutation.type === 'characterData') {
shouldScroll = true;
break;
}
}
if (shouldScroll) {
autoScroll();
}
});
observer.observe(messagesContainer, {
childList: true,
subtree: true,
characterData: true
});
// 修改dialog的show类添加监听
const dialogObserver = new MutationObserver((mutations) => {
mutations.forEach((mutation) => {
if (mutation.target.classList.contains('show')) {
userHasScrolled = false;
autoScroll(true); // 强制滚动到底部
}
});
});
dialogObserver.observe(dialog, {
attributes: true,
attributeFilter: ['class']
});
// 获取当前标签页ID
let tabId;
try {
const response = await sendMessageWithRetry({ action: 'getCurrentTab' });
if (!response) {
throw new Error('无法获取标签页ID');
}
tabId = response.tabId;
} catch (error) {
console.error('获取标签页ID失败:', error);
return;
}
// 初化marked
const markedInstance = await initMarked();
// 加载历史会话
async function loadHistory() {
try {
const response = await sendMessageWithRetry({
action: 'getHistory',
tabId: tabId
});
messagesContainer.innerHTML = '';
if (!response || !response.history || response.history.length === 0) {
const welcomeDiv = document.createElement('div');
welcomeDiv.className = 'welcome-message';
welcomeDiv.innerHTML = '<p>👋 你好！我是AI助手，可以帮你理解和分析当前网页的内容。</p>';
messagesContainer.appendChild(welcomeDiv);
} else {
response.history.forEach(msg => {
const messageDiv = document.createElement('div');
messageDiv.className = `message ${msg.isUser ? 'user-message' : 'assistant-message'}`;
// 保存原始的Markdown内容
messageDiv.dataset.markdownContent = msg.markdownContent || msg.content;
try {
// 对所有消息使用Markdown渲染
messageDiv.innerHTML = markedInstance(msg.markdownContent || msg.content);
// 添加右键菜单事件监听
messageDiv.addEventListener('contextmenu', (e) => {
const markdownContent = messageDiv.dataset.markdownContent;
handleContextMenu(e, messageDiv, markdownContent);
});
} catch (error) {
console.error('Markdown渲染失败:', error);
messageDiv.textContent = msg.content;
}
messagesContainer.appendChild(messageDiv);
});
}
messagesContainer.scrollTop = messagesContainer.scrollHeight;
} catch (error) {
console.error('加载历史记录失败:', error);
messagesContainer.innerHTML = `
<div class="welcome-message">
<p>👋 你好！我是AI助手，可以帮你理解和分析当前网页的内容。</p>
</div>
`;
}
}
// 添加复制功能
function createCopyButton() {
const button = document.createElement('button');
button.className = 'copy-button';
button.innerHTML = '📋 复制';
return button;
}
// 复制文本到剪贴板
async function copyToClipboard(text) {
try {
await navigator.clipboard.writeText(text);
return true;
} catch (err) {
console.error('复制失败:', err);
return false;
}
}
// 修改handleContextMenu函数
function handleContextMenu(e, messageDiv, content) {
e.preventDefault();
e.stopPropagation();
// 移除可能存在的旧菜单
const oldMenu = document.querySelector('.context-menu');
if (oldMenu) {
oldMenu.remove();
}
// 获取要复制的内容
// 对于AI回复，优先使用保存的Markdown内容
const textToCopy = messageDiv.classList.contains('assistant-message')
? messageDiv.dataset.markdownContent || content || messageDiv.textContent
: content;
console.log('Copy content:', textToCopy); // 调试日志
// 创建右键菜单
const menu = document.createElement('div');
menu.className = 'context-menu';
menu.style.position = 'fixed';
menu.style.left = `${e.clientX}px`;
menu.style.top = `${e.clientY}px`;
// 添加复制选项
const copyOption = document.createElement('div');
copyOption.className = 'context-menu-item';
copyOption.innerHTML = '📋 复制该消息';
copyOption.onclick = async (e) => {
e.preventDefault();
e.stopPropagation();
const success = await copyToClipboard(textToCopy);
if (success) {
// 显示复制成功提示
const toast = document.createElement('div');
toast.className = 'copy-toast';
toast.textContent = '✓ 已复制';
toast.style.position = 'fixed';
toast.style.left = `${e.clientX}px`;
toast.style.top = `${e.clientY - 40}px`;
toast.style.transform = 'translate(-50%, -50%)';
document.body.appendChild(toast);
// 2秒后移除提示
setTimeout(() => {
toast.remove();