Snowz
79b13fb280
引入完整的App图标搜索器增强版，包括前端页面、后端缓存系统、样式和脚本。主要功能包括实时搜索、多尺寸图标下载、图片预览、响应式设计和智能缓存机制。后端通过ImageCache类实现图片缓存，前端通过JavaScript优化搜索交互和图片加载体验。新增README.md提供详细的部署和开发指南。
105 lines
3.3 KiB
JavaScript
105 lines
3.3 KiB
JavaScript
document.addEventListener('DOMContentLoaded', function() {
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const backToTop = document.getElementById('back-to-top');
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const modal = document.getElementById('imagePreview');
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const modalImg = document.getElementById('previewImage');
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const closeBtn = document.getElementsByClassName('close')[0];
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const searchInput = document.getElementById('searchInput');
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const iconGrid = document.getElementById('iconGrid');
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// 返回顶部按钮
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window.onscroll = function() {
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if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
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backToTop.style.display = 'block';
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} else {
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backToTop.style.display = 'none';
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}
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};
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backToTop.onclick = function() {
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window.scrollTo({
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top: 0,
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behavior: 'smooth'
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});
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};
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// 图标预览模态框
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document.querySelectorAll('.icon-image img').forEach(img => {
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img.onclick = function() {
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modal.style.display = 'block';
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modalImg.src = this.getAttribute('data-high-res');
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modalImg.alt = this.alt;
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};
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});
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closeBtn.onclick = function() {
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modal.style.display = 'none';
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};
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window.onclick = function(event) {
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if (event.target == modal) {
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modal.style.display = 'none';
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}
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};
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// 搜索输入优化
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// 搜索防抖功能
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function debounce(func, wait) {
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let timeout;
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return function (...args) {
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clearTimeout(timeout);
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timeout = setTimeout(() => func.apply(this, args), wait);
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};
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}
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document.addEventListener('DOMContentLoaded', function() {
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const searchForm = document.getElementById('searchForm');
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const searchInput = document.getElementById('searchInput');
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// 防止表单自动提交
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searchForm.addEventListener('submit', function(e) {
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e.preventDefault();
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if (searchInput.value.trim()) {
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this.submit();
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}
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});
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// 输入防抖
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const debouncedSearch = debounce(function(value) {
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if (value.trim().length >= 2) {
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searchForm.submit();
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}
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}, 800);
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// 监听输入事件
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searchInput.addEventListener('input', function(e) {
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const value = e.target.value;
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debouncedSearch(value);
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});
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// 添加加载状态
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searchForm.addEventListener('submit', function() {
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const button = this.querySelector('button[type="submit"]');
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button.innerHTML = '<i class="fas fa-spinner fa-spin"></i>';
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button.disabled = true;
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// 2秒后恢复按钮状态（如果请求完成会被新页面覆盖）
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setTimeout(() => {
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button.innerHTML = '<i class="fas fa-search"></i>';
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button.disabled = false;
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}, 2000);
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});
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});
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// 图标加载动画
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const observer = new IntersectionObserver((entries) => {
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entries.forEach(entry => {
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if (entry.isIntersecting) {
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entry.target.classList.add('fade-in');
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}
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});
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});
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document.querySelectorAll('.icon-card').forEach(card => {
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observer.observe(card);
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});
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}); |