Files
zclaw_openfang/desktop/src/components/ClassroomPreviewer.tsx
iven 28299807b6 fix(desktop): DeerFlow UI — ChatArea refactor + ai-elements + dead CSS cleanup
ChatArea retry button uses setInput instead of direct sendToGateway,
fix bootstrap spinner stuck for non-logged-in users,
remove dead CSS (aurora-title/sidebar-open/quick-action-chips),
add ai components (ReasoningBlock/StreamingText/ChatMode/ModelSelector/TaskProgress),
add ClassroomPlayer + ResizableChatLayout + artifact panel

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-02 19:24:44 +08:00

705 lines
23 KiB
TypeScript
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/**
* ClassroomPreviewer - 课堂预览器组件
*
* 预览 classroom-generator Pipeline 生成的课堂内容:
* - 幻灯片导航
* - 大纲视图
* - 场景切换
* - 全屏播放模式
* - AI 教师讲解展示
*/
import { useState, useCallback, useEffect } from 'react';
import {
ChevronLeft,
ChevronRight,
Play,
Pause,
Maximize,
Minimize,
List,
Grid,
Volume2,
VolumeX,
Download,
Share2,
} from 'lucide-react';
import { useToast } from './ui/Toast';
// === Types ===
export interface ClassroomScene {
id: string;
title: string;
type: 'title' | 'content' | 'quiz' | 'summary' | 'interactive';
content: {
heading?: string;
bullets?: string[];
image?: string;
explanation?: string;
quiz?: {
question: string;
options: string[];
answer: number;
};
};
narration?: string;
duration?: number; // seconds
}
export interface ClassroomData {
id: string;
title: string;
subject: string;
difficulty: '初级' | '中级' | '高级';
duration: number; // minutes
scenes: ClassroomScene[];
outline: {
sections: {
title: string;
scenes: string[];
}[];
};
createdAt: string;
}
interface ClassroomPreviewerProps {
data: ClassroomData;
onClose?: () => void;
onExport?: (format: 'pptx' | 'html' | 'pdf') => void;
onOpenFullPlayer?: () => void;
}
// === Sub-Components ===
interface SceneRendererProps {
scene: ClassroomScene;
isPlaying: boolean;
showNarration: boolean;
}
function SceneRenderer({ scene, showNarration }: SceneRendererProps) {
const renderContent = () => {
switch (scene.type) {
case 'title':
return (
<div className="flex flex-col items-center justify-center h-full text-center p-8">
<h1 className="text-4xl font-bold text-white mb-4">
{scene.content.heading || scene.title}
</h1>
{scene.content.bullets && (
<p className="text-xl text-white/80">
{scene.content.bullets[0]}
</p>
)}
</div>
);
case 'content':
return (
<div className="p-8">
<h2 className="text-3xl font-bold text-white mb-6">
{scene.content.heading || scene.title}
</h2>
{scene.content.bullets && (
<ul className="space-y-4">
{scene.content.bullets.map((bullet, index) => (
<li
key={index}
className="flex items-start gap-3 text-lg text-white/90"
>
<span className="flex-shrink-0 w-6 h-6 rounded-full bg-blue-500 flex items-center justify-center text-sm font-medium">
{index + 1}
</span>
<span>{bullet}</span>
</li>
))}
</ul>
)}
{scene.content.image && (
<div className="mt-6">
<img
src={scene.content.image}
alt={scene.title}
className="max-h-48 rounded-lg shadow-lg"
/>
</div>
)}
</div>
);
case 'quiz':
return (
<div className="p-8">
<h2 className="text-2xl font-bold text-white mb-6">
📝
</h2>
{scene.content.quiz && (
<div className="space-y-4">
<p className="text-xl text-white">
{scene.content.quiz.question}
</p>
<div className="grid grid-cols-1 md:grid-cols-2 gap-3 mt-4">
{scene.content.quiz.options.map((option, index) => (
<button
key={index}
className="p-4 bg-white/10 hover:bg-white/20 rounded-lg text-left text-white transition-colors"
>
<span className="font-medium mr-2">
{String.fromCharCode(65 + index)}.
</span>
{option}
</button>
))}
</div>
</div>
)}
</div>
);
case 'summary':
return (
<div className="p-8">
<h2 className="text-3xl font-bold text-white mb-6">
📋
</h2>
{scene.content.bullets && (
<ul className="space-y-3">
{scene.content.bullets.map((bullet, index) => (
<li
key={index}
className="flex items-center gap-2 text-lg text-white/90"
>
<span className="text-green-400"></span>
{bullet}
</li>
))}
</ul>
)}
</div>
);
default:
return (
<div className="p-8">
<h2 className="text-2xl font-bold text-white">
{scene.title}
</h2>
<p className="text-white/80 mt-4">{scene.content.explanation}</p>
</div>
);
}
};
return (
<div className="relative h-full bg-gradient-to-br from-blue-600 via-purple-600 to-indigo-700">
{/* Scene Content */}
<div className="h-full overflow-auto">
{renderContent()}
</div>
{/* Narration Overlay */}
{showNarration && scene.narration && (
<div className="absolute bottom-0 left-0 right-0 bg-black/70 p-4">
<div className="flex items-start gap-3">
<div className="flex-shrink-0 w-10 h-10 rounded-full bg-blue-500 flex items-center justify-center">
<Volume2 className="w-5 h-5 text-white" />
</div>
<p className="text-white/90 text-sm leading-relaxed">
{scene.narration}
</p>
</div>
</div>
)}
</div>
);
}
interface OutlinePanelProps {
outline: ClassroomData['outline'];
scenes: ClassroomScene[];
currentIndex: number;
onSelectScene: (index: number) => void;
}
function OutlinePanel({
outline,
scenes,
currentIndex,
onSelectScene,
}: OutlinePanelProps) {
return (
<div className="h-full overflow-auto bg-gray-50 dark:bg-gray-800 p-4">
<h3 className="text-sm font-semibold text-gray-700 dark:text-gray-300 mb-3">
</h3>
<div className="space-y-2">
{outline.sections.map((section, sectionIndex) => (
<div key={sectionIndex}>
<p className="text-xs font-medium text-gray-500 dark:text-gray-400 mb-1">
{section.title}
</p>
<div className="space-y-1">
{section.scenes.map((sceneId) => {
const globalIndex = scenes.findIndex(s => s.id === sceneId);
const isActive = globalIndex === currentIndex;
const scene = scenes.find(s => s.id === sceneId);
return (
<button
key={sceneId}
onClick={() => onSelectScene(globalIndex)}
className={`w-full text-left px-3 py-2 rounded-md text-sm transition-colors ${
isActive
? 'bg-blue-100 dark:bg-blue-900/30 text-blue-700 dark:text-blue-300'
: 'hover:bg-gray-100 dark:hover:bg-gray-700 text-gray-600 dark:text-gray-300'
}`}
>
<span className="truncate">{scene?.title || sceneId}</span>
</button>
);
})}
</div>
</div>
))}
</div>
</div>
);
}
// === Main Component ===
export function ClassroomPreviewer({
data,
onExport,
onOpenFullPlayer,
}: ClassroomPreviewerProps) {
const [currentSceneIndex, setCurrentSceneIndex] = useState(0);
const [isPlaying, setIsPlaying] = useState(false);
const [showNarration, setShowNarration] = useState(true);
const [showOutline, setShowOutline] = useState(true);
const [isFullscreen, setIsFullscreen] = useState(false);
const [viewMode, setViewMode] = useState<'slides' | 'grid'>('slides');
const { toast } = useToast();
const currentScene = data.scenes[currentSceneIndex];
const totalScenes = data.scenes.length;
// Navigation
const goToScene = useCallback((index: number) => {
if (index >= 0 && index < totalScenes) {
setCurrentSceneIndex(index);
}
}, [totalScenes]);
const nextScene = useCallback(() => {
goToScene(currentSceneIndex + 1);
}, [currentSceneIndex, goToScene]);
const prevScene = useCallback(() => {
goToScene(currentSceneIndex - 1);
}, [currentSceneIndex, goToScene]);
// Auto-play
useEffect(() => {
if (!isPlaying) return;
const duration = currentScene?.duration ? currentScene.duration * 1000 : 5000;
const timer = setTimeout(() => {
if (currentSceneIndex < totalScenes - 1) {
nextScene();
} else {
setIsPlaying(false);
toast('课堂播放完成', 'success');
}
}, duration);
return () => clearTimeout(timer);
}, [isPlaying, currentSceneIndex, currentScene, totalScenes, nextScene, toast]);
// Keyboard navigation
useEffect(() => {
const handleKeyDown = (e: KeyboardEvent) => {
switch (e.key) {
case 'ArrowRight':
case ' ':
e.preventDefault();
nextScene();
break;
case 'ArrowLeft':
e.preventDefault();
prevScene();
break;
case 'Escape':
if (isFullscreen) {
setIsFullscreen(false);
}
break;
}
};
window.addEventListener('keydown', handleKeyDown);
return () => window.removeEventListener('keydown', handleKeyDown);
}, [nextScene, prevScene, isFullscreen]);
// Fullscreen toggle
const toggleFullscreen = () => {
setIsFullscreen(!isFullscreen);
};
// Export handler
const handleExport = (format: 'pptx' | 'html' | 'pdf') => {
if (onExport) {
onExport(format);
return;
}
// Default export implementation
toast(`正在导出 ${format.toUpperCase()} 格式...`, 'info');
setTimeout(() => {
try {
if (format === 'html') {
const htmlContent = generateClassroomHTML(data);
downloadFile(htmlContent, `${data.title}.html`, 'text/html');
toast('HTML 导出成功', 'success');
} else if (format === 'pptx') {
// Export as JSON for conversion
const pptxData = JSON.stringify(data, null, 2);
downloadFile(pptxData, `${data.title}.slides.json`, 'application/json');
toast('幻灯片数据已导出JSON格式', 'success');
} else if (format === 'pdf') {
const htmlContent = generatePrintableHTML(data);
const printWindow = window.open('', '_blank');
if (printWindow) {
printWindow.document.write(htmlContent);
printWindow.document.close();
printWindow.print();
toast('已打开打印预览', 'success');
}
}
} catch (err) {
const errorMsg = err instanceof Error ? err.message : '导出失败';
toast(`导出失败: ${errorMsg}`, 'error');
}
}, 300);
};
return (
<div className={`bg-white dark:bg-gray-900 rounded-lg shadow-xl overflow-hidden ${
isFullscreen ? 'fixed inset-0 z-50 rounded-none' : 'max-w-5xl w-full'
}`}>
{/* Header */}
<div className="flex items-center justify-between p-4 border-b border-gray-200 dark:border-gray-700">
<div>
<h2 className="text-lg font-semibold text-gray-900 dark:text-white">
{data.title}
</h2>
<p className="text-sm text-gray-500 dark:text-gray-400">
{data.subject} · {data.difficulty} · {data.duration}
</p>
</div>
<div className="flex items-center gap-2">
{onOpenFullPlayer && (
<button
onClick={onOpenFullPlayer}
className="flex items-center gap-1.5 px-3 py-1.5 text-sm bg-indigo-100 dark:bg-indigo-900/30 text-indigo-700 dark:text-indigo-300 rounded-md hover:bg-indigo-200 dark:hover:bg-indigo-900/50 transition-colors"
>
<Play className="w-4 h-4" />
</button>
)}
<button
onClick={() => handleExport('pptx')}
className="flex items-center gap-1.5 px-3 py-1.5 text-sm bg-orange-100 dark:bg-orange-900/30 text-orange-700 dark:text-orange-300 rounded-md hover:bg-orange-200 dark:hover:bg-orange-900/50 transition-colors"
>
<Download className="w-4 h-4" />
PPTX
</button>
<button
onClick={() => handleExport('html')}
className="flex items-center gap-1.5 px-3 py-1.5 text-sm bg-blue-100 dark:bg-blue-900/30 text-blue-700 dark:text-blue-300 rounded-md hover:bg-blue-200 dark:hover:bg-blue-900/50 transition-colors"
>
<Share2 className="w-4 h-4" />
HTML
</button>
</div>
</div>
{/* Main Content */}
<div className="flex h-[500px]">
{/* Outline Panel */}
{showOutline && (
<div className="w-64 border-r border-gray-200 dark:border-gray-700 flex-shrink-0">
<OutlinePanel
outline={data.outline}
scenes={data.scenes}
currentIndex={currentSceneIndex}
onSelectScene={goToScene}
/>
</div>
)}
{/* Slide Area */}
<div className="flex-1 flex flex-col">
{/* Scene Renderer */}
<div className="flex-1 relative">
{viewMode === 'slides' ? (
<SceneRenderer
scene={currentScene}
isPlaying={isPlaying}
showNarration={showNarration}
/>
) : (
<div className="h-full overflow-auto p-4 bg-gray-100 dark:bg-gray-800">
<div className="grid grid-cols-3 gap-3">
{data.scenes.map((scene, index) => (
<button
key={scene.id}
onClick={() => goToScene(index)}
className={`aspect-video rounded-lg overflow-hidden border-2 transition-colors ${
index === currentSceneIndex
? 'border-blue-500'
: 'border-transparent hover:border-gray-300 dark:hover:border-gray-600'
}`}
>
<div className="h-full bg-gradient-to-br from-blue-600 to-purple-600 p-2">
<p className="text-xs text-white font-medium truncate">
{scene.title}
</p>
</div>
</button>
))}
</div>
</div>
)}
</div>
{/* Control Bar */}
<div className="flex items-center justify-between p-3 border-t border-gray-200 dark:border-gray-700 bg-gray-50 dark:bg-gray-800">
{/* Left Controls */}
<div className="flex items-center gap-2">
<button
onClick={() => setShowOutline(!showOutline)}
className={`p-2 rounded-md transition-colors ${
showOutline
? 'bg-blue-100 dark:bg-blue-900/30 text-blue-600 dark:text-blue-400'
: 'hover:bg-gray-100 dark:hover:bg-gray-700 text-gray-600 dark:text-gray-300'
}`}
title="大纲"
>
<List className="w-5 h-5" />
</button>
<button
onClick={() => setViewMode(viewMode === 'slides' ? 'grid' : 'slides')}
className="p-2 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md text-gray-600 dark:text-gray-300"
title={viewMode === 'slides' ? '网格视图' : '幻灯片视图'}
>
<Grid className="w-5 h-5" />
</button>
</div>
{/* Center Controls */}
<div className="flex items-center gap-3">
<button
onClick={prevScene}
disabled={currentSceneIndex === 0}
className="p-2 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md text-gray-600 dark:text-gray-300 disabled:opacity-50"
>
<ChevronLeft className="w-5 h-5" />
</button>
<button
onClick={() => setIsPlaying(!isPlaying)}
className="p-3 bg-blue-600 hover:bg-blue-700 text-white rounded-full transition-colors"
>
{isPlaying ? (
<Pause className="w-5 h-5" />
) : (
<Play className="w-5 h-5" />
)}
</button>
<button
onClick={nextScene}
disabled={currentSceneIndex === totalScenes - 1}
className="p-2 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md text-gray-600 dark:text-gray-300 disabled:opacity-50"
>
<ChevronRight className="w-5 h-5" />
</button>
<span className="text-sm text-gray-500 dark:text-gray-400 min-w-[60px] text-center">
{currentSceneIndex + 1} / {totalScenes}
</span>
</div>
{/* Right Controls */}
<div className="flex items-center gap-2">
<button
onClick={() => setShowNarration(!showNarration)}
className={`p-2 rounded-md transition-colors ${
showNarration
? 'bg-blue-100 dark:bg-blue-900/30 text-blue-600 dark:text-blue-400'
: 'hover:bg-gray-100 dark:hover:bg-gray-700 text-gray-600 dark:text-gray-300'
}`}
title={showNarration ? '隐藏讲解' : '显示讲解'}
>
{showNarration ? (
<Volume2 className="w-5 h-5" />
) : (
<VolumeX className="w-5 h-5" />
)}
</button>
<button
onClick={toggleFullscreen}
className="p-2 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md text-gray-600 dark:text-gray-300"
title={isFullscreen ? '退出全屏' : '全屏'}
>
{isFullscreen ? (
<Minimize className="w-5 h-5" />
) : (
<Maximize className="w-5 h-5" />
)}
</button>
</div>
</div>
</div>
</div>
</div>
);
}
export default ClassroomPreviewer;
// === Helper Functions ===
function downloadFile(content: string, filename: string, mimeType: string) {
const blob = new Blob([content], { type: mimeType });
const url = URL.createObjectURL(blob);
const link = document.createElement('a');
link.href = url;
link.download = filename;
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
URL.revokeObjectURL(url);
}
function generateClassroomHTML(data: ClassroomData): string {
const scenesHTML = data.scenes.map((scene, index) => `
<section class="slide" data-index="${index}">
<div class="slide-content ${scene.type}">
<h2>${scene.content.heading || scene.title}</h2>
${scene.content.bullets ? `
<ul>
${scene.content.bullets.map((b: string) => `<li>${b}</li>`).join('')}
</ul>
` : ''}
${scene.narration ? `<p class="narration">${scene.narration}</p>` : ''}
</div>
</section>
`).join('');
return `<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>${data.title}</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
background: linear-gradient(135deg, #3b82f6, #8b5cf6, #6366f1);
min-height: 100vh;
color: white;
}
.presentation { max-width: 1200px; margin: 0 auto; padding: 2rem; }
header { text-align: center; padding: 2rem 0; border-bottom: 1px solid rgba(255,255,255,0.2); margin-bottom: 2rem; }
h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.meta { opacity: 0.8; font-size: 0.9rem; }
.slide {
background: rgba(255,255,255,0.1);
border-radius: 1rem;
padding: 2rem;
margin-bottom: 1.5rem;
backdrop-filter: blur(10px);
}
.slide h2 { font-size: 1.8rem; margin-bottom: 1rem; }
.slide ul { list-style: none; padding-left: 1rem; }
.slide li { margin-bottom: 0.75rem; font-size: 1.1rem; }
.slide li::before { content: '•'; color: #60a5fa; margin-right: 0.5rem; }
.narration {
background: rgba(0,0,0,0.3);
padding: 1rem;
border-radius: 0.5rem;
margin-top: 1rem;
font-style: italic;
opacity: 0.9;
}
.title .slide-content { text-align: center; min-height: 200px; display: flex; flex-direction: column; justify-content: center; }
.quiz { background: rgba(34, 197, 94, 0.2); }
.summary { background: rgba(168, 85, 247, 0.2); }
footer { text-align: center; padding: 2rem 0; border-top: 1px solid rgba(255,255,255,0.2); margin-top: 2rem; opacity: 0.6; }
</style>
</head>
<body>
<div class="presentation">
<header>
<h1>${data.title}</h1>
<p class="meta">${data.subject} · ${data.difficulty} · ${data.duration} 分钟</p>
</header>
<main>${scenesHTML}</main>
<footer><p>由 ZCLAW 课堂生成器创建</p></footer>
</div>
</body>
</html>`;
}
function generatePrintableHTML(data: ClassroomData): string {
const scenesHTML = data.scenes.map((scene, index) => `
<div class="page" style="page-break-after: always;">
<div class="slide-print">
<h1 style="font-size: 24pt; margin-bottom: 20pt;">${scene.content.heading || scene.title}</h1>
${scene.content.bullets ? `
<ul style="font-size: 14pt; line-height: 1.8;">
${scene.content.bullets.map((b: string) => `<li>${b}</li>`).join('')}
</ul>
` : ''}
${scene.narration ? `<p style="background: #f0f0f0; padding: 10pt; margin-top: 20pt; font-style: italic;">${scene.narration}</p>` : ''}
<p style="position: absolute; bottom: 20pt; right: 20pt; color: #999; font-size: 10pt;">${index + 1} / ${data.scenes.length}</p>
</div>
</div>
`).join('');
return `<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>${data.title} - 打印版</title>
<style>
@media print {
body { margin: 0; }
.page { page-break-after: always; }
}
body { font-family: 'Microsoft YaHei', sans-serif; }
.slide-print {
width: 100%;
height: 100vh;
padding: 40pt;
position: relative;
}
</style>
</head>
<body>
<div class="document">
<header style="text-align: center; margin-bottom: 30pt;">
<h1 style="font-size: 32pt;">${data.title}</h1>
<p style="color: #666;">${data.subject} · ${data.difficulty} · ${data.duration} 分钟</p>
</header>
${scenesHTML}
</div>
</body>
</html>`;
}