feat: 重构首页对话
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172
utils/TypewriterManager.js
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172
utils/TypewriterManager.js
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/**
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* 打字机效果管理器
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* 负责管理打字机效果的启动、停止、重置等功能
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*/
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class TypewriterManager {
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constructor(options = {}) {
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// 配置选项
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this.options = {
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typingSpeed: 50, // 打字速度(毫秒)
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cursorText: '<text class="typing-cursor">|</text>', // 光标样式
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...options
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};
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// 状态变量
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this.currentMessageContent = ""; // 当前消息的完整内容
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this.displayedContent = ""; // 已显示的内容
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this.typewriterTimer = null; // 打字机定时器
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this.isTyping = false; // 是否正在打字
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// 回调函数
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this.onCharacterTyped = null; // 每个字符打字时的回调
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this.onTypingComplete = null; // 打字完成时的回调
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this.onContentUpdate = null; // 内容更新时的回调
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}
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/**
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* 设置回调函数
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* @param {Object} callbacks - 回调函数对象
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* @param {Function} callbacks.onCharacterTyped - 每个字符打字时的回调
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* @param {Function} callbacks.onTypingComplete - 打字完成时的回调
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* @param {Function} callbacks.onContentUpdate - 内容更新时的回调
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*/
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setCallbacks(callbacks) {
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this.onCharacterTyped = callbacks.onCharacterTyped || null;
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this.onTypingComplete = callbacks.onTypingComplete || null;
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this.onContentUpdate = callbacks.onContentUpdate || null;
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}
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/**
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* 添加内容到当前消息
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* @param {string} content - 要添加的内容
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*/
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addContent(content) {
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if (typeof content !== 'string') {
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content = String(content);
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}
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this.currentMessageContent += content;
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// 如果没有在打字,启动打字机效果
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if (!this.isTyping) {
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this.startTypewriter();
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}
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}
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/**
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* 启动打字机效果
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*/
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startTypewriter() {
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if (this.isTyping) return;
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this.isTyping = true;
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this.displayedContent = "";
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this._typeNextChar();
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}
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/**
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* 打字下一个字符(私有方法)
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*/
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_typeNextChar() {
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// 如果已显示内容长度小于完整内容长度,继续打字
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if (this.displayedContent.length < this.currentMessageContent.length) {
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this.displayedContent = this.currentMessageContent.substring(
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0,
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this.displayedContent.length + 1
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);
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const displayContent = this.displayedContent + this.options.cursorText;
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// 调用内容更新回调
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if (this.onContentUpdate) {
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this.onContentUpdate(displayContent);
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}
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// 调用字符打字回调
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if (this.onCharacterTyped) {
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this.onCharacterTyped(this.displayedContent);
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}
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// 继续下一个字符
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this.typewriterTimer = setTimeout(() => {
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this._typeNextChar();
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}, this.options.typingSpeed);
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} else {
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// 打字完成,移除光标
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if (this.onContentUpdate) {
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this.onContentUpdate(this.currentMessageContent);
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}
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// 调用打字完成回调
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if (this.onTypingComplete) {
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this.onTypingComplete(this.currentMessageContent);
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}
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this.stopTypewriter();
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}
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}
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/**
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* 停止打字机效果
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*/
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stopTypewriter() {
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if (this.typewriterTimer) {
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clearTimeout(this.typewriterTimer);
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this.typewriterTimer = null;
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}
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this.isTyping = false;
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}
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/**
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* 重置打字机状态
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*/
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reset() {
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this.currentMessageContent = "";
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this.displayedContent = "";
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this.stopTypewriter();
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}
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/**
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* 获取当前状态
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* @returns {Object} 当前状态对象
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*/
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getStatus() {
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return {
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isTyping: this.isTyping,
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currentContent: this.currentMessageContent,
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displayedContent: this.displayedContent,
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progress: this.currentMessageContent.length > 0
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? this.displayedContent.length / this.currentMessageContent.length
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: 0
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};
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}
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/**
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* 立即完成打字(跳过动画)
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*/
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completeImmediately() {
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this.stopTypewriter();
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this.displayedContent = this.currentMessageContent;
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if (this.onContentUpdate) {
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this.onContentUpdate(this.currentMessageContent);
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}
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if (this.onTypingComplete) {
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this.onTypingComplete(this.currentMessageContent);
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}
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}
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/**
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* 销毁打字机管理器
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*/
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destroy() {
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this.stopTypewriter();
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this.reset();
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this.onCharacterTyped = null;
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this.onTypingComplete = null;
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this.onContentUpdate = null;
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}
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}
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export default TypewriterManager;
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