4a09d52283
Update all three section dialogs to support hide/show toggle: SectionAxisDialogManager: - onHideToggle now calls hideSection()/recoverSection() SectionBoxDialogManager: - onHideToggle now calls hideSection()/recoverSection() SectionPlanePanel: - Add isHidden state tracking - Change onHide to onHideToggle(isHidden) - Add setHiddenState/getHiddenState methods - Update button to toggle active state SectionPlaneDialogManager: - Switch to onHideToggle callback - Call hideSection()/recoverSection() based on toggle state Behavior: Click hide button to hide section, click again to recover.
815 lines
27 KiB
TypeScript
815 lines
27 KiB
TypeScript
/**
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* AI 聊天对话框组件
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* 支持拖拽、消息展示、问答卡片等功能
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*/
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import './index.css';
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import type { AiChatOptions, Message, QuestionMessage, QuestionOption, StepStatus } from './types';
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import type { ThemeConfig } from '../../themes/types';
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import { IBimComponent } from '../../types/component';
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import { themeManager } from '../../services/theme';
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import { t, localeManager } from '../../services/locale';
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import { getIcon } from '../../utils/icon-manager';
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/**
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* AI 聊天组件类
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* 实现 IBimComponent 接口，支持主题切换和国际化
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*/
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export class AiChat implements IBimComponent {
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/** 组件根元素 */
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private element: HTMLElement;
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/** 组件配置选项 */
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private options: AiChatOptions;
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/** 挂载容器 */
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private container: HTMLElement;
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/** 消息列表容器 */
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private messagesContainer: HTMLElement | null = null;
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/** 输入框元素 */
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private textarea: HTMLTextAreaElement | null = null;
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/** 消息数据列表 */
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private messages: Message[] = [];
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/** 是否已销毁 */
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private _isDestroyed = false;
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/** 是否可见 */
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private _isVisible = false;
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/** 主题订阅取消函数 */
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private unsubscribeTheme: (() => void) | null = null;
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/** 语言订阅取消函数 */
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private unsubscribeLocale: (() => void) | null = null;
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/** requestAnimationFrame ID，用于拖拽性能优化 */
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private rafId: number | null = null;
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/**
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* 构造函数
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* @param options 组件配置选项
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*/
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constructor(options: AiChatOptions) {
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// 合并默认配置
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this.options = {
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width: 440,
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title: 'aiChat.title',
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placeholder: 'aiChat.placeholder',
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quickPrompts: [
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{ id: 'summarize', label: 'aiChat.quickPrompt.summarize' },
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{ id: 'explain', label: 'aiChat.quickPrompt.explain' },
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{ id: 'generate', label: 'aiChat.quickPrompt.generate' }
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],
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...options
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};
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this.container = options.container;
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this.element = this.createDom();
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this.init();
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}
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/**
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* 初始化组件
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* 挂载到容器并订阅主题/语言变更
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*/
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public init(): void {
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this.container.appendChild(this.element);
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this.hide();
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// 订阅主题变更
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this.unsubscribeTheme = themeManager.subscribe((theme) => {
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this.setTheme(theme);
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});
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// 订阅语言变更
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this.unsubscribeLocale = localeManager.subscribe(() => {
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this.setLocales();
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});
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this.setTheme(themeManager.getTheme());
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this.setLocales();
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}
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/**
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* 设置主题
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* @param theme 主题配置对象
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*/
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public setTheme(theme: ThemeConfig): void {
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// 根据主题名称判断深色/浅色模式
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const isDark = theme.name === 'dark' || theme.name?.includes('dark');
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this.element.classList.toggle('light', !isDark);
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// 设置 CSS 变量
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const style = this.element.style;
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style.setProperty('--bim-ai-accent', theme.primary);
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style.setProperty('--bim-ai-text', theme.textPrimary);
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style.setProperty('--bim-ai-muted', theme.textTertiary);
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style.setProperty('--bim-ai-border', theme.borderDefault);
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style.setProperty('--bim-ai-shadow', theme.shadowLg);
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}
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/**
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* 设置国际化文本
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* 更新标题、占位符、快捷提示等文本
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*/
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public setLocales(): void {
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// 更新标题
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const titleEl = this.element.querySelector('.bim-ai-chat-title');
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if (titleEl && this.options.title) {
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titleEl.textContent = t(this.options.title);
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}
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// 更新输入框占位符
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const placeholderEl = this.element.querySelector('.bim-ai-textarea') as HTMLTextAreaElement;
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if (placeholderEl && this.options.placeholder) {
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placeholderEl.placeholder = t(this.options.placeholder);
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}
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// 更新底部提示文字
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const helperL = this.element.querySelector('.bim-ai-helper-left');
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if (helperL) helperL.textContent = t('aiChat.helper.newline');
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const helperR = this.element.querySelector('.bim-ai-helper-right');
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if (helperR) helperR.textContent = t('aiChat.helper.send');
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// 更新快捷提示按钮和消息列表
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this.updateQuickPrompts();
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this.renderMessages();
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}
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/**
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* 显示对话框
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*/
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public show(): void {
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this._isVisible = true;
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this.element.style.display = 'flex';
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this.initPosition();
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this.scrollToBottom();
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}
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/**
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* 初始化对话框位置
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* 首次显示时定位到右上角（距边缘 50px）
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*/
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private initPosition(): void {
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// 如果已有位置则不重置，保留用户拖拽后的位置
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if (this.element.style.left) return;
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const containerW = this.container.clientWidth;
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const elW = this.element.offsetWidth;
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// 计算左边距：容器宽度 - 元素宽度 - 右边距(50px)
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const left = Math.max(50, containerW - elW - 50);
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this.element.style.left = `${left}px`;
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this.element.style.top = '50px';
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}
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/**
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* 隐藏对话框
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*/
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public hide(): void {
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this._isVisible = false;
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this.element.style.display = 'none';
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}
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/**
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* 切换对话框显示/隐藏状态
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*/
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public toggle(): void {
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if (this._isVisible) {
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this.hide();
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} else {
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this.show();
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}
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}
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/**
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* 获取对话框是否可见
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*/
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public isVisible(): boolean {
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return this._isVisible;
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}
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/**
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* 添加消息
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* @param message 消息对象
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*/
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public addMessage(message: Message): void {
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this.messages.push(message);
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this.renderMessages();
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this.scrollToBottom();
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}
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/**
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* 更新消息
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* @param id 消息 ID
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* @param updates 要更新的字段
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*/
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public updateMessage(id: string, updates: Partial<Message>): void {
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const index = this.messages.findIndex(m => m.id === id);
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if (index !== -1) {
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this.messages[index] = { ...this.messages[index], ...updates } as Message;
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this.renderMessages();
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}
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}
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/**
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* 删除消息
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* @param id 消息 ID
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*/
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public removeMessage(id: string): void {
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this.messages = this.messages.filter(m => m.id !== id);
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this.renderMessages();
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}
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/**
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* 清空所有消息
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*/
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public clearMessages(): void {
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this.messages = [];
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this.renderMessages();
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}
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/**
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* 添加用户消息
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* @param content 消息内容
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* @returns 消息 ID
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*/
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public addUserMessage(content: string): string {
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const id = `user-${Date.now()}`;
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this.addMessage({
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id,
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type: 'user',
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content,
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timestamp: Date.now()
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});
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return id;
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}
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/**
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* 添加 AI 回复消息
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* @param content 消息内容
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* @returns 消息 ID
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*/
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public addAiMessage(content: string): string {
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const id = `ai-${Date.now()}`;
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this.addMessage({
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id,
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type: 'ai',
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content,
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timestamp: Date.now()
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});
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return id;
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}
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/**
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* 添加步骤消息（执行中/完成/失败）
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* @param status 步骤状态
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* @param content 步骤描述
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* @returns 消息 ID
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*/
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public addStepMessage(status: StepStatus, content: string): string {
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const id = `step-${Date.now()}`;
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this.addMessage({
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id,
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type: 'step',
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status,
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content,
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timestamp: Date.now()
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});
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return id;
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}
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/**
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* 添加思考中消息
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* @returns 消息 ID
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*/
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public addThinkingMessage(): string {
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const id = `thinking-${Date.now()}`;
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this.addMessage({
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id,
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type: 'thinking',
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timestamp: Date.now()
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});
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return id;
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}
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/**
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* 添加问答卡片消息
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* @param title 问题标题
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* @param question 问题内容
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* @param options 选项列表
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* @returns 消息 ID
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*/
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public addQuestionMessage(title: string, question: string, options: QuestionOption[]): string {
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const id = `question-${Date.now()}`;
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this.addMessage({
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id,
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type: 'question',
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title,
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question,
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options,
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answered: false,
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timestamp: Date.now()
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});
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return id;
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}
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/**
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* 创建 DOM 结构
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* @returns 组件根元素
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*/
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private createDom(): HTMLElement {
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const el = document.createElement('div');
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el.className = 'bim-ai-chat';
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el.style.width = `${this.options.width}px`;
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el.innerHTML = `
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<div class="bim-ai-chat-header">
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<span class="bim-ai-chat-title"></span>
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<div class="bim-ai-chat-actions">
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<button class="bim-ai-chat-action-btn" data-action="new" title="${t('aiChat.action.new')}">
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${getIcon('plus')}
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</button>
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<button class="bim-ai-chat-action-btn" data-action="history" title="${t('aiChat.action.history')}">
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${getIcon('history')}
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</button>
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<button class="bim-ai-chat-action-btn" data-action="settings" title="${t('aiChat.action.settings')}">
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${getIcon('settings')}
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</button>
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<button class="bim-ai-chat-action-btn" data-action="close" title="${t('aiChat.action.close')}">
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${getIcon('close')}
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</button>
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</div>
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</div>
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<div class="bim-ai-chat-messages"></div>
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<div class="bim-ai-chat-composer">
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<div class="bim-ai-quick-prompts"></div>
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<div class="bim-ai-input-row">
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<div class="bim-ai-textbox">
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<textarea class="bim-ai-textarea" rows="1"></textarea>
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<div class="bim-ai-helper">
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<span class="bim-ai-helper-left"></span>
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<span class="bim-ai-helper-right"></span>
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</div>
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</div>
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<button class="bim-ai-send-btn">
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${getIcon('arrowUpBold')}
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</button>
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</div>
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</div>
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`;
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// 获取子元素引用
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this.messagesContainer = el.querySelector('.bim-ai-chat-messages');
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this.textarea = el.querySelector('.bim-ai-textarea');
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// 绑定事件
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this.bindEvents(el);
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this.updateQuickPrompts(el);
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return el;
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}
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/**
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* 绑定事件监听
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* @param el 组件根元素
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*/
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private bindEvents(el: HTMLElement): void {
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// 顶部操作按钮事件
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el.querySelectorAll('.bim-ai-chat-action-btn').forEach(btn => {
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btn.addEventListener('click', (e) => {
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const action = (e.currentTarget as HTMLElement).dataset.action;
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switch (action) {
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case 'new':
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this.options.onNewChat?.();
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break;
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case 'history':
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this.options.onHistory?.();
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break;
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case 'settings':
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this.options.onSettings?.();
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break;
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case 'close':
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this.hide();
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this.options.onClose?.();
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break;
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}
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});
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});
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// 初始化拖拽功能
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const header = el.querySelector('.bim-ai-chat-header') as HTMLElement;
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if (header) {
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this.initDrag(header);
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}
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// 发送按钮点击事件
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const sendBtn = el.querySelector('.bim-ai-send-btn');
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sendBtn?.addEventListener('click', () => this.handleSend());
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// 输入框键盘事件：Enter 发送，Shift+Enter 换行
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this.textarea?.addEventListener('keydown', (e) => {
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if (e.key === 'Enter' && !e.shiftKey) {
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e.preventDefault();
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this.handleSend();
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}
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});
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// 输入框自动调整高度
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this.textarea?.addEventListener('input', () => {
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if (this.textarea) {
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this.textarea.style.height = 'auto';
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this.textarea.style.height = Math.min(this.textarea.scrollHeight, 100) + 'px';
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}
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});
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// 阻止事件冒泡，避免影响底层 3D 场景
|
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const stopPropagation = (e: Event) => e.stopPropagation();
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const events = ['click', 'dblclick', 'mousedown', 'mouseup', 'mousemove', 'wheel', 'touchstart', 'touchend', 'touchmove'];
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events.forEach(eventType => {
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el.addEventListener(eventType, stopPropagation, { passive: false });
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});
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}
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|
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/**
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* 处理发送消息
|
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*/
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private handleSend(): void {
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if (!this.textarea) return;
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const content = this.textarea.value.trim();
|
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if (!content) return;
|
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// 清空输入框并重置高度
|
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this.textarea.value = '';
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this.textarea.style.height = 'auto';
|
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// 触发回调
|
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this.options.onSend?.(content);
|
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}
|
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|
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/**
|
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* 初始化拖拽功能
|
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* 使用 requestAnimationFrame 优化性能，避免拖拽卡顿
|
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* @param header 标题栏元素（拖拽手柄）
|
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*/
|
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private initDrag(header: HTMLElement): void {
|
||
// 拖拽状态变量
|
||
let startX = 0; // 鼠标起始 X 坐标
|
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let startY = 0; // 鼠标起始 Y 坐标
|
||
let startLeft = 0; // 元素起始 left 值
|
||
let startTop = 0; // 元素起始 top 值
|
||
let containerW = 0; // 容器宽度
|
||
let containerH = 0; // 容器高度
|
||
let elW = 0; // 元素宽度
|
||
let elH = 0; // 元素高度
|
||
|
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/**
|
||
* 鼠标按下事件处理
|
||
*/
|
||
const onMouseDown = (e: MouseEvent) => {
|
||
// 如果点击的是操作按钮，不触发拖拽
|
||
if ((e.target as HTMLElement).closest('.bim-ai-chat-action-btn')) return;
|
||
e.preventDefault();
|
||
e.stopPropagation();
|
||
|
||
// 记录起始状态
|
||
startX = e.clientX;
|
||
startY = e.clientY;
|
||
startLeft = this.element.offsetLeft;
|
||
startTop = this.element.offsetTop;
|
||
|
||
// 记录容器和元素尺寸（用于边界检测）
|
||
containerW = this.container.clientWidth;
|
||
containerH = this.container.clientHeight;
|
||
elW = this.element.offsetWidth;
|
||
elH = this.element.offsetHeight;
|
||
|
||
// 添加全局鼠标事件监听（使用 capture 确保优先处理）
|
||
document.addEventListener('mousemove', onMouseMove, { capture: true });
|
||
document.addEventListener('mouseup', onMouseUp, { capture: true });
|
||
};
|
||
|
||
/**
|
||
* 鼠标移动事件处理
|
||
* 使用 requestAnimationFrame 节流，提升性能
|
||
*/
|
||
const onMouseMove = (e: MouseEvent) => {
|
||
e.preventDefault();
|
||
e.stopPropagation();
|
||
|
||
// 如果上一帧还没处理完，跳过本次
|
||
if (this.rafId) return;
|
||
|
||
this.rafId = requestAnimationFrame(() => {
|
||
// 计算鼠标移动的增量
|
||
const dx = e.clientX - startX;
|
||
const dy = e.clientY - startY;
|
||
|
||
// 计算新位置
|
||
let newLeft = startLeft + dx;
|
||
let newTop = startTop + dy;
|
||
|
||
// 边界检测：限制在容器范围内
|
||
const maxLeft = containerW - elW;
|
||
const maxTop = containerH - elH;
|
||
|
||
newLeft = Math.max(0, Math.min(newLeft, maxLeft));
|
||
newTop = Math.max(0, Math.min(newTop, maxTop));
|
||
|
||
// 应用新位置
|
||
this.element.style.left = `${newLeft}px`;
|
||
this.element.style.top = `${newTop}px`;
|
||
|
||
this.rafId = null;
|
||
});
|
||
};
|
||
|
||
/**
|
||
* 鼠标释放事件处理
|
||
*/
|
||
const onMouseUp = () => {
|
||
// 取消未完成的动画帧
|
||
if (this.rafId) {
|
||
cancelAnimationFrame(this.rafId);
|
||
this.rafId = null;
|
||
}
|
||
// 移除全局事件监听
|
||
document.removeEventListener('mousemove', onMouseMove, { capture: true });
|
||
document.removeEventListener('mouseup', onMouseUp, { capture: true });
|
||
};
|
||
|
||
// 绑定标题栏鼠标按下事件
|
||
header.addEventListener('mousedown', onMouseDown);
|
||
}
|
||
|
||
/**
|
||
* 更新快捷提示按钮
|
||
* @param el 可选的根元素（初始化时使用）
|
||
*/
|
||
private updateQuickPrompts(el?: HTMLElement): void {
|
||
const root = el || this.element;
|
||
const container = root.querySelector('.bim-ai-quick-prompts');
|
||
if (!container || !this.options.quickPrompts) return;
|
||
|
||
// 渲染快捷提示按钮
|
||
container.innerHTML = this.options.quickPrompts.map(prompt => `
|
||
<button class="bim-ai-quick-prompt" data-prompt-id="${prompt.id}">
|
||
${t(prompt.label)}
|
||
</button>
|
||
`).join('');
|
||
|
||
// 绑定点击事件：点击后填充到输入框
|
||
container.querySelectorAll('.bim-ai-quick-prompt').forEach(btn => {
|
||
btn.addEventListener('click', (e) => {
|
||
const promptId = (e.currentTarget as HTMLElement).dataset.promptId;
|
||
const prompt = this.options.quickPrompts?.find(p => p.id === promptId);
|
||
if (prompt && this.textarea) {
|
||
this.textarea.value = t(prompt.label);
|
||
this.textarea.focus();
|
||
}
|
||
});
|
||
});
|
||
}
|
||
|
||
/**
|
||
* 渲染消息列表
|
||
* 根据消息类型渲染不同的消息卡片
|
||
*/
|
||
private renderMessages(): void {
|
||
if (!this.messagesContainer) return;
|
||
|
||
this.messagesContainer.innerHTML = this.messages.map(msg => {
|
||
switch (msg.type) {
|
||
case 'user':
|
||
return this.renderUserMessage(msg.content);
|
||
case 'ai':
|
||
return this.renderAiMessage(msg.content);
|
||
case 'step':
|
||
return this.renderStepMessage(msg.status, msg.content);
|
||
case 'thinking':
|
||
return this.renderThinkingMessage();
|
||
case 'question':
|
||
return msg.answered
|
||
? this.renderAnsweredQuestion(msg)
|
||
: this.renderActiveQuestion(msg);
|
||
default:
|
||
return '';
|
||
}
|
||
}).join('');
|
||
|
||
// 重新绑定问答卡片的事件
|
||
this.bindQuestionEvents();
|
||
}
|
||
|
||
/**
|
||
* 渲染用户消息气泡
|
||
*/
|
||
private renderUserMessage(content: string): string {
|
||
return `
|
||
<div class="bim-ai-msg-user">
|
||
<div class="bim-ai-bubble">
|
||
<div class="bim-ai-bubble-content">${this.escapeHtml(content)}</div>
|
||
</div>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
/**
|
||
* 渲染 AI 消息气泡
|
||
*/
|
||
private renderAiMessage(content: string): string {
|
||
return `
|
||
<div class="bim-ai-msg-ai">
|
||
<div class="bim-ai-bubble">
|
||
<div class="bim-ai-bubble-content">${this.escapeHtml(content)}</div>
|
||
</div>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
/**
|
||
* 渲染步骤消息卡片
|
||
* @param status 状态：running/done/error
|
||
* @param content 步骤描述
|
||
*/
|
||
private renderStepMessage(status: StepStatus, content: string): string {
|
||
// 状态对应的图标映射
|
||
const iconMap: Record<StepStatus, string> = {
|
||
running: 'loader',
|
||
done: 'check',
|
||
error: 'error'
|
||
};
|
||
return `
|
||
<div class="bim-ai-step bim-ai-step-${status}">
|
||
<span class="bim-ai-step-icon">${getIcon(iconMap[status])}</span>
|
||
<span class="bim-ai-step-text">${this.escapeHtml(content)}</span>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
/**
|
||
* 渲染思考中卡片
|
||
*/
|
||
private renderThinkingMessage(): string {
|
||
return `
|
||
<div class="bim-ai-thinking">
|
||
<span class="bim-ai-thinking-icon">${getIcon('loader')}</span>
|
||
<span class="bim-ai-thinking-text">${t('aiChat.thinking')}</span>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
/**
|
||
* 渲染未回答的问答卡片
|
||
* @param msg 问答消息对象
|
||
*/
|
||
private renderActiveQuestion(msg: QuestionMessage): string {
|
||
// 渲染选项列表
|
||
const optionsHtml = msg.options.map(opt => `
|
||
<div class="bim-ai-option ${msg.selectedOptionId === opt.id ? 'selected' : ''}"
|
||
data-question-id="${msg.id}" data-option-id="${opt.id}" data-is-other="${opt.isOther || false}">
|
||
<div class="bim-ai-option-radio">
|
||
<div class="bim-ai-option-radio-dot"></div>
|
||
</div>
|
||
<span class="bim-ai-option-text">${opt.isOther ? t('aiChat.other') : this.escapeHtml(opt.label)}</span>
|
||
</div>
|
||
${opt.isOther && msg.selectedOptionId === opt.id ? `
|
||
<input type="text" class="bim-ai-option-input"
|
||
data-question-id="${msg.id}"
|
||
placeholder="${t('aiChat.otherPlaceholder')}"
|
||
value="${msg.customAnswer || ''}">
|
||
` : ''}
|
||
`).join('');
|
||
|
||
return `
|
||
<div class="bim-ai-question-active" data-question-id="${msg.id}">
|
||
<div class="bim-ai-question-header">
|
||
<div class="bim-ai-question-icon">${getIcon('bot')}</div>
|
||
<span class="bim-ai-question-title">${this.escapeHtml(msg.title)}</span>
|
||
</div>
|
||
<div class="bim-ai-question-content">
|
||
<div class="bim-ai-question-text">${this.escapeHtml(msg.question)}</div>
|
||
<div class="bim-ai-question-options">${optionsHtml}</div>
|
||
</div>
|
||
<div class="bim-ai-question-footer">
|
||
<button class="bim-ai-question-submit" data-question-id="${msg.id}">
|
||
<span>${t('aiChat.submit')}</span>
|
||
${getIcon('send')}
|
||
</button>
|
||
</div>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
/**
|
||
* 渲染已回答的问答卡片（简洁模式）
|
||
* @param msg 问答消息对象
|
||
*/
|
||
private renderAnsweredQuestion(msg: QuestionMessage): string {
|
||
const selectedOption = msg.options.find(o => o.id === msg.selectedOptionId);
|
||
const answer = selectedOption?.isOther ? msg.customAnswer : selectedOption?.label;
|
||
|
||
return `
|
||
<div class="bim-ai-question-answered">
|
||
<div class="bim-ai-qa-row">
|
||
<div class="bim-ai-qa-badge bim-ai-qa-badge-q">Q</div>
|
||
<span class="bim-ai-qa-question">${this.escapeHtml(msg.question)}</span>
|
||
</div>
|
||
<div class="bim-ai-qa-row">
|
||
<div class="bim-ai-qa-badge bim-ai-qa-badge-a">A</div>
|
||
<span class="bim-ai-qa-answer">${this.escapeHtml(answer || '')}</span>
|
||
</div>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
/**
|
||
* 绑定问答卡片的交互事件
|
||
* 包括：选项点击、自定义输入、提交按钮
|
||
*/
|
||
private bindQuestionEvents(): void {
|
||
// 选项点击事件
|
||
this.messagesContainer?.querySelectorAll('.bim-ai-option').forEach(option => {
|
||
option.addEventListener('click', (e) => {
|
||
const target = e.currentTarget as HTMLElement;
|
||
const questionId = target.dataset.questionId;
|
||
const optionId = target.dataset.optionId;
|
||
|
||
if (questionId && optionId) {
|
||
const msg = this.messages.find(m => m.id === questionId) as QuestionMessage;
|
||
if (msg && !msg.answered) {
|
||
msg.selectedOptionId = optionId;
|
||
this.renderMessages();
|
||
}
|
||
}
|
||
});
|
||
});
|
||
|
||
// 自定义输入框事件
|
||
this.messagesContainer?.querySelectorAll('.bim-ai-option-input').forEach(input => {
|
||
input.addEventListener('input', (e) => {
|
||
const target = e.target as HTMLInputElement;
|
||
const questionId = target.dataset.questionId;
|
||
|
||
if (questionId) {
|
||
const msg = this.messages.find(m => m.id === questionId) as QuestionMessage;
|
||
if (msg) {
|
||
msg.customAnswer = target.value;
|
||
}
|
||
}
|
||
});
|
||
});
|
||
|
||
// 提交按钮事件
|
||
this.messagesContainer?.querySelectorAll('.bim-ai-question-submit').forEach(btn => {
|
||
btn.addEventListener('click', (e) => {
|
||
const target = e.currentTarget as HTMLElement;
|
||
const questionId = target.dataset.questionId;
|
||
|
||
if (questionId) {
|
||
const msg = this.messages.find(m => m.id === questionId) as QuestionMessage;
|
||
if (msg && msg.selectedOptionId) {
|
||
msg.answered = true;
|
||
this.renderMessages();
|
||
this.options.onQuestionSubmit?.(questionId, msg.selectedOptionId, msg.customAnswer);
|
||
}
|
||
}
|
||
});
|
||
});
|
||
}
|
||
|
||
/**
|
||
* 滚动消息列表到底部
|
||
*/
|
||
private scrollToBottom(): void {
|
||
if (this.messagesContainer) {
|
||
this.messagesContainer.scrollTop = this.messagesContainer.scrollHeight;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* HTML 转义，防止 XSS 攻击
|
||
* @param str 原始字符串
|
||
* @returns 转义后的字符串
|
||
*/
|
||
private escapeHtml(str: string): string {
|
||
const div = document.createElement('div');
|
||
div.textContent = str;
|
||
return div.innerHTML;
|
||
}
|
||
|
||
/**
|
||
* 销毁组件
|
||
* 取消订阅并移除 DOM 元素
|
||
*/
|
||
public destroy(): void {
|
||
if (this._isDestroyed) return;
|
||
|
||
// 取消主题订阅
|
||
if (this.unsubscribeTheme) {
|
||
this.unsubscribeTheme();
|
||
this.unsubscribeTheme = null;
|
||
}
|
||
|
||
// 取消语言订阅
|
||
if (this.unsubscribeLocale) {
|
||
this.unsubscribeLocale();
|
||
this.unsubscribeLocale = null;
|
||
}
|
||
|
||
// 移除 DOM 元素
|
||
this.element.remove();
|
||
this._isDestroyed = true;
|
||
}
|
||
}
|