280 lines
8.0 KiB
JavaScript
280 lines
8.0 KiB
JavaScript
'use client';
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import { useEffect, useRef, useState, useCallback, useMemo } from 'react';
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import Reveal from 'reveal.js';
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import 'reveal.js/dist/reveal.css';
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import { marked } from 'marked';
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import './Presentation.css';
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// 简单的动态主题加载器
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const loadTheme = async (themeName) => {
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if (!themeName) return;
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try {
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// 1. 优先尝试加载自定义主题
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await import(`./themes/${themeName}.css`);
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console.log(`加载自定义主题: ${themeName}`);
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} catch (error) {
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try {
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// 2. 尝试加载 Reveal.js 内置主题
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await import(`reveal.js/dist/theme/${themeName}.css`);
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console.log(`加载内置主题: ${themeName}`);
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} catch (error2) {
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// 3. 如果都失败，使用默认主题
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console.warn(`主题 ${themeName} 未找到，使用默认主题`);
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await import('reveal.js/dist/theme/black.css');
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}
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}
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};
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// Reveal.js配置
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const REVEAL_CONFIG = {
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hash: true,
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transition: 'slide',
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transitionSpeed: 'default',
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backgroundTransition: 'fade',
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controls: true,
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progress: true,
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center: true,
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touch: true,
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loop: false,
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rtl: false,
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navigationMode: 'default',
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shuffle: false,
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fragments: true,
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fragmentInURL: false,
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embedded: false,
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help: true,
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showNotes: true,
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autoPlayMedia: null,
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preloadIframes: null,
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autoSlide: 0,
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autoSlideStoppable: true,
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autoSlideMethod: Reveal.navigateNext,
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defaultTiming: null,
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mouseWheel: false,
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hideInactiveCursor: true,
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hideCursorTime: 5000,
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previewLinks: false,
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postMessage: true,
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postMessageEvents: false,
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focusBodyOnPageVisibilityChange: true,
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viewDistance: 3,
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mobileViewDistance: 2,
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display: 'block',
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hideAnchorsOnUrl: false,
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plugins: []
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};
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// 配置marked解析器（只配置一次）
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marked.setOptions({
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breaks: true,
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gfm: true,
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headerIds: false,
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mangle: false,
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});
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export default function Presentation({ data }) {
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const deckRef = useRef(null);
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const revealRef = useRef(null);
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const [mounted, setMounted] = useState(false);
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const [error, setError] = useState(null);
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// 客户端挂载检测
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useEffect(() => {
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setMounted(true);
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}, []);
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// 解析Markdown内容为幻灯片
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const parseMarkdownToSlides = useCallback((data) => {
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if (!data) {
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return `<section><h1>演示文稿</h1><p>暂无内容</p></section>`;
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}
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try {
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// 如果有 content 字段，直接使用 markdown 内容
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if (data.content) {
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return parseContentSlides(data);
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}
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// 如果没有 content 字段，使用 items 数据构建幻灯片
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const items = data.items || [];
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if (items.length === 0) {
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return parseSingleSlide(data);
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}
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return parseItemsSlides(items);
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} catch (err) {
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console.error('解析幻灯片内容失败:', err);
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return `<section><h1>解析错误</h1><p>内容解析失败，请检查数据格式</p></section>`;
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}
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}, []);
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// 解析content字段的幻灯片
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const parseContentSlides = (data) => {
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const slideSeparators = /^---$/gm;
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const sections = data.content.split(slideSeparators);
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return sections.map((section, index) => {
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const trimmedSection = section.trim();
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if (!trimmedSection) return '';
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// 检查是否有背景设置
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const backgroundMatch = trimmedSection.match(/<!-- \.slide: data-background="([^"]+)"[^>]* -->/);
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let backgroundAttr = '';
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let contentWithoutBackground = trimmedSection;
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if (backgroundMatch) {
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backgroundAttr = ` data-background="${backgroundMatch[1]}"`;
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contentWithoutBackground = trimmedSection.replace(/<!-- \.slide: data-background="[^"]+"[^>]* -->/g, '');
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}
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const htmlContent = marked(contentWithoutBackground);
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// 如果是第一个幻灯片且没有标题，添加标题
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if (index === 0 && !htmlContent.includes('<h1>') && data.title) {
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return `<section${backgroundAttr}><h1>${data.title}</h1>${htmlContent}</section>`;
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}
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return `<section${backgroundAttr}>${htmlContent}</section>`;
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}).join('');
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};
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// 解析单个幻灯片
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const parseSingleSlide = (data) => {
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return `<section>
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<h1>${data.title || '演示文稿'}</h1>
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${data.subtitle ? `<p class="lead">${data.subtitle}</p>` : ''}
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${data.description ? `<div class="mt-4">${marked(data.description)}</div>` : ''}
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${data.image ? `<img src="${data.image}" alt="${data.title}" style="max-width: 100%; height: auto; margin: 1rem 0;" />` : ''}
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</section>`;
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};
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// 解析items数组的幻灯片
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const parseItemsSlides = (items) => {
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return items.map((item, index) => {
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const slideContent = [];
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if (item.item_title) {
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slideContent.push(`<h1>${item.item_title}</h1>`);
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}
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if (item.item_subtitle) {
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slideContent.push(`<p class="lead">${item.item_subtitle}</p>`);
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}
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if (item.item_description) {
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slideContent.push(`<div class="mt-4">${marked(item.item_description)}</div>`);
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}
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if (item.item_image) {
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slideContent.push(`<img src="${item.item_image}" alt="${item.item_title || 'Slide'}" style="max-width: 100%; height: auto; margin: 1rem 0;" />`);
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}
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if (item.item_video_src) {
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slideContent.push(`<video controls style="max-width: 100%; height: auto; margin: 1rem 0;">
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<source src="${item.item_video_src}" type="video/mp4">
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您的浏览器不支持视频播放。
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</video>`);
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}
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if (item.item_button_text && item.item_button_link) {
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slideContent.push(`<div class="mt-6">
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<a href="${item.item_button_link}" class="btn btn-primary" target="_blank" rel="noopener noreferrer">
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${item.item_button_text}
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</a>
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</div>`);
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}
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return `<section>${slideContent.join('')}</section>`;
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}).join('');
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};
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// 初始化Reveal.js
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const initializeReveal = useCallback(async () => {
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if (!deckRef.current || !data) return;
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try {
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// 清理之前的实例
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if (revealRef.current) {
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revealRef.current.destroy();
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}
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// 动态加载主题
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const themeName = data.theme || 'default';
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await loadTheme(themeName);
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// 创建新实例
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revealRef.current = new Reveal(deckRef.current, REVEAL_CONFIG);
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revealRef.current.initialize();
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// 更新slides内容
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const slides = parseMarkdownToSlides(data);
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const slidesContainer = deckRef.current.querySelector('.slides');
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if (slidesContainer) {
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slidesContainer.innerHTML = slides;
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}
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setError(null);
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} catch (err) {
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console.error('Reveal.js初始化失败:', err);
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setError('PPT初始化失败，请刷新页面重试');
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}
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}, [data, parseMarkdownToSlides]);
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// 数据变化时重新初始化
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useEffect(() => {
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if (mounted && data) {
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initializeReveal();
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}
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return () => {
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if (revealRef.current) {
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revealRef.current.destroy();
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}
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};
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}, [mounted, data, initializeReveal]);
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// 错误状态
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if (error) {
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return (
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<div className="min-h-screen bg-black flex items-center justify-center">
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<div className="text-white text-xl text-center">
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<p className="mb-4">PPT加载失败</p>
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<p className="text-sm text-gray-400">{error}</p>
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<button
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onClick={() => window.location.reload()}
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className="mt-4 px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700"
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>
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刷新页面
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</button>
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</div>
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</div>
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);
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}
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// 加载状态
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if (!mounted) {
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return (
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<div className="min-h-screen bg-black flex items-center justify-center">
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<div className="text-white text-xl">正在加载PPT...</div>
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</div>
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);
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}
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return (
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<div className="reveal-container">
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<div
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ref={deckRef}
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className="reveal"
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>
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<div className="slides">
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<section>
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<p>正在加载内容...</p>
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</section>
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</div>
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</div>
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</div>
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);
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}
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