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Add overlay gallery page #1

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144 changes: 144 additions & 0 deletions main.html
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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Overlay 预览</title>
<style>
:root {
color-scheme: light dark;
}

body {
margin: 0;
font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
sans-serif;
background: #111;
color: #f4f4f4;
min-height: 100vh;
display: flex;
flex-direction: column;
}

header {
padding: 1.5rem 2rem;
text-align: center;
background: rgba(255, 255, 255, 0.05);
border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

h1 {
margin: 0;
font-size: clamp(1.5rem, 2vw, 2.5rem);
letter-spacing: 0.05em;
}

#gallery {
flex: 1;
display: flex;
flex-wrap: wrap;
justify-content: center;
align-items: center;
gap: 2rem;
padding: 2rem;
}

figure {
margin: 0;
display: flex;
flex-direction: column;
align-items: center;
gap: 0.5rem;
max-width: min(600px, 90vw);
}

img {
max-width: 100%;
height: auto;
border-radius: 12px;
box-shadow: 0 15px 45px rgba(0, 0, 0, 0.4);
border: 1px solid rgba(255, 255, 255, 0.15);
background: rgba(255, 255, 255, 0.02);
}

figcaption {
font-size: 0.95rem;
color: rgba(255, 255, 255, 0.85);
}

#status {
text-align: center;
padding: 2rem;
font-size: 1.1rem;
color: rgba(255, 255, 255, 0.7);
}
</style>
</head>
<body>
<header>
<h1>Overlays 图像预览</h1>
<p>自动读取 overlays 目录中的所有图片并居中显示。</p>
</header>
<main id="gallery" aria-live="polite"></main>
<div id="status" hidden>正在加载 overlays 目录中的图片…</div>

<script>
const gallery = document.getElementById('gallery');
const statusEl = document.getElementById('status');
const imagePattern = /\.(png|jpe?g|gif|webp|svg)$/i;

function setStatus(message, hidden = false) {
statusEl.textContent = message;
statusEl.hidden = hidden;
}

async function loadOverlayImages() {
try {
setStatus('正在读取 overlays 目录…');
const response = await fetch('overlays/');

if (!response.ok) {
throw new Error(`无法读取 overlays 目录: ${response.status}`);
}

const html = await response.text();
const parser = new DOMParser();
const doc = parser.parseFromString(html, 'text/html');
const links = Array.from(doc.querySelectorAll('a'));
const imageLinks = links
.map((link) => link.getAttribute('href') || '')
.filter((href) => imagePattern.test(href))
.map((href) => href.replace(/^\.\//, ''));

if (!imageLinks.length) {
setStatus('overlays 目录中尚未放置任何图片。', false);
return;
}

gallery.innerHTML = '';
imageLinks.forEach((fileName) => {
const figure = document.createElement('figure');

const img = document.createElement('img');
img.src = `overlays/${fileName}`;
img.alt = fileName;

const caption = document.createElement('figcaption');
caption.textContent = fileName;

figure.appendChild(img);
figure.appendChild(caption);
gallery.appendChild(figure);
});

setStatus('', true);
} catch (error) {
console.error(error);
setStatus('读取 overlays 目录失败，请确保在服务器环境下访问此页面。');
}
}

loadOverlayImages();
</script>
</body>
</html>
1 change: 1 addition & 0 deletions overlays/.gitkeep
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# 保持 overlays 目录处于版本控制中。