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197 lines
4.9 KiB
197 lines
4.9 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Optimized Media Gallery</title>
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<style>
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html, body {
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margin: 0;
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padding: 0;
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overflow-x: hidden;
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font-family: Arial, sans-serif;
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touch-action: manipulation;
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}
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body.modal-open {
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overflow: hidden;
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position: fixed;
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width: 100%;
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}
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.gallery {
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display: grid;
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grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
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gap: 10px;
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width: 100%;
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max-width: 100vw;
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margin: 20px 0;
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padding: 0 10px;
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box-sizing: border-box;
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}
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.media {
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position: relative;
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overflow: hidden;
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border-radius: 10px;
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background-color: #f0f0f0;
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aspect-ratio: 1 / 1;
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}
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.media img,
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.media video {
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width: 100%;
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height: 100%;
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object-fit: cover;
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border-radius: 10px;
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cursor: pointer;
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opacity: 0;
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transition: opacity 0.3s, transform 0.3s;
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}
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.media img.loaded,
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.media video.loaded {
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opacity: 1;
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}
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.media img:hover,
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.media video:hover {
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transform: scale(1.05);
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}
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.modal {
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display: none;
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position: fixed;
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top: 0;
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left: 0;
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width: 100vw;
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height: 100vh;
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background-color: rgba(0, 0, 0, 0.9);
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justify-content: center;
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align-items: center;
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z-index: 1000;
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flex-direction: column;
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touch-action: none;
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}
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.modal.active {
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display: flex;
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}
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.modal-content {
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position: relative;
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max-width: 100vw;
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max-height: 100vh;
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display: flex;
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justify-content: center;
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align-items: center;
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box-sizing: border-box;
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padding: 10px;
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}
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.modal-content img,
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.modal-content video {
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max-width: 100vw;
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max-height: 100vh;
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width: auto;
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height: auto;
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object-fit: contain;
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border-radius: 10px;
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display: block;
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}
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</style>
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</head>
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<body>
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<div class="gallery">
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<!-- 假设这是动态渲染的静态目录文件，支持懒加载 -->
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{% for file in files %}
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<div class="media">
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{% if file.endswith(('.jpg', '.jpeg', '.png', '.gif', '.JPG', '.JPEG', '.PNG', '.GIF')) %}
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<img data-src="/media/{{ file }}" alt="{{ file }}" onclick="openModal('{{ file }}', 'image')">
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{% elif file.endswith(('.mp4', '.avi', '.mov', '.wmv', '.m4v', '.mpg')) %}
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<video data-src="/media/{{ file }}" controls onclick="openModal('{{ file }}', 'video')">
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Your browser does not support the video tag.
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</video>
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{% endif %}
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</div>
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{% endfor %}
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</div>
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<!-- 模态框 -->
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<div id="modal" class="modal">
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<div class="modal-content" id="modalContent"></div>
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</div>
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<script>
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const mediaElements = document.querySelectorAll('.media img, .media video');
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const lazyLoadObserver = new IntersectionObserver((entries, observer) => {
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entries.forEach(entry => {
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if (entry.isIntersecting) {
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const el = entry.target;
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el.src = el.dataset.src;
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el.classList.add('loaded');
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observer.unobserve(el);
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}
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});
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}, { rootMargin: '0px 0px 200px 0px' });
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mediaElements.forEach(el => lazyLoadObserver.observe(el));
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const modal = document.getElementById('modal');
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const modalContent = document.getElementById('modalContent');
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const body = document.body;
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let files = [{% for file in files %}"{{ file }}",{% endfor %}];
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let currentIndex = 0;
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function openModal(file, type) {
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currentIndex = files.indexOf(file);
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showModal(file, type);
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modal.classList.add('active');
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body.classList.add('modal-open');
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}
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function showModal(file, type) {
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modalContent.innerHTML = '';
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const media = document.createElement(type === 'image' ? 'img' : 'video');
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media.src = `/media/${file}`;
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if (type === 'video') {
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media.controls = true;
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}
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modalContent.appendChild(media);
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}
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modal.addEventListener('click', (e) => {
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if (!modalContent.contains(e.target)) {
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modal.classList.remove('active');
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body.classList.remove('modal-open');
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modalContent.innerHTML = '';
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}
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});
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// 滑动切换（仅图片）
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let startY = 0;
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modal.addEventListener('touchstart', e => {
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startY = e.touches[0].clientY;
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});
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modal.addEventListener('touchend', e => {
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const endY = e.changedTouches[0].clientY;
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const deltaY = endY - startY;
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if (Math.abs(deltaY) > 50) {
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if (deltaY < 0) {
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currentIndex = (currentIndex + 1) % files.length;
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} else {
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currentIndex = (currentIndex - 1 + files.length) % files.length;
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}
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const nextFile = files[currentIndex];
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const ext = nextFile.split('.').pop().toLowerCase();
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const isImage = ['jpg', 'jpeg', 'png', 'gif'].includes(ext);
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showModal(nextFile, isImage ? 'image' : 'video');
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}
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});
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</script>
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</body>
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</html>
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