feat(ui/ux): 优化用户体验和可访问性
- 字体加载优化: 添加 font-display: block 策略，创建 useFontLoading hook - 色彩对比度: 调整 text-muted 和 text-tertiary 颜色值确保 WCAG AA 合规 - 滚动进度条: 新增 ScrollProgress 组件，支持 reduced motion - 表单自动保存: 新增 useFormAutosave hook，防止用户数据丢失 - 返回顶部按钮: 新增 BackToTop 组件，提升长页面导航体验 - 图片懒加载: 优化 OptimizedImage 组件，添加 blur placeholder 和加载动画 所有新组件均包含完整测试，1450+ 测试通过
This commit is contained in:
张翔
@@ -9,7 +9,8 @@ import { Toast } from '@/components/ui/toast';
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import { sanitizeInput } from '@/lib/sanitize';
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import { generateCSRFToken, setCSRFTokenToStorage, getCSRFTokenFromStorage } from '@/lib/csrf';
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import { generateCaptcha } from '@/lib/security/captcha';
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import { Mail, MapPin, Send, Loader2, Clock, HeadphonesIcon, CheckCircle2, RefreshCw } from 'lucide-react';
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import { useFormAutosave } from '@/hooks/use-form-autosave';
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import { Mail, MapPin, Send, Loader2, Clock, HeadphonesIcon, CheckCircle2, RefreshCw, Save } from 'lucide-react';
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import { COMPANY_INFO } from '@/lib/constants';
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const contactFormSchema = z.object({
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@@ -36,17 +37,29 @@ export function ContactSection() {
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const [showToast, setShowToast] = useState(false);
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const [toastMessage, setToastMessage] = useState('');
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const [toastType, setToastType] = useState<'success' | 'error'>('success');
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const [formData, setFormData] = useState<ContactFormData>({
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name: '',
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phone: '',
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email: '',
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message: '',
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});
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const [errors, setErrors] = useState<FormErrors>({});
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const [captcha, setCaptcha] = useState(generateCaptcha('simple'));
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const [captchaAnswer, setCaptchaAnswer] = useState('');
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const sectionRef = useRef<HTMLElement>(null);
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// 使用表单自动保存功能
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const {
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data: formData,
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updateData,
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lastSaved,
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isRestored,
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clearSavedData,
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} = useFormAutosave<ContactFormData>({
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key: 'contact_form',
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initialData: {
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name: '',
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phone: '',
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email: '',
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message: '',
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},
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debounceMs: 1000,
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});
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useEffect(() => {
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const observer = new IntersectionObserver(
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([entry]) => {
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@@ -83,7 +96,7 @@ export function ContactSection() {
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const handleChange = (field: keyof ContactFormData, value: string) => {
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const sanitizedValue = sanitizeInput(value);
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setFormData((prev) => ({ ...prev, [field]: sanitizedValue }));
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updateData({ [field]: sanitizedValue });
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if (errors[field]) {
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validateField(field, sanitizedValue);
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}
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@@ -163,6 +176,7 @@ export function ContactSection() {
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setIsSubmitting(false);
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setIsSubmitted(true);
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clearSavedData(); // 提交成功后清除保存的数据
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setToastMessage('表单提交成功！我们会尽快与您联系。');
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setToastType('success');
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setShowToast(true);
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@@ -277,7 +291,7 @@ export function ContactSection() {
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</div>
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</div>
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<div
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<div
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className={`
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lg:col-span-3 flex flex-col
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opacity-0 translate-y-4
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@@ -285,7 +299,34 @@ export function ContactSection() {
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`}
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>
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<div className="bg-[#F5F7FA] p-6 sm:p-8 rounded-lg border border-[#E2E8F0] flex-1 flex flex-col">
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<h3 className="text-lg font-semibold text-[#1A1A2E] mb-6">发送消息</h3>
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<div className="flex items-center justify-between mb-6">
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<h3 className="text-lg font-semibold text-[#1A1A2E]">发送消息</h3>
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{/* 自动保存状态指示器 */}
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<div className="flex items-center gap-2 text-sm text-[#595959]">
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{lastSaved && (
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<>
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<Save className="w-4 h-4" />
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<span>已保存 {lastSaved.toLocaleTimeString()}</span>
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</>
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)}
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</div>
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</div>
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{/* 数据恢复提示 */}
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{isRestored && (
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<div className="mb-4 p-3 bg-blue-50 border border-blue-200 rounded-lg flex items-center justify-between">
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<span className="text-sm text-blue-700">
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已恢复您上次未提交的表单内容
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</span>
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<button
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type="button"
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onClick={clearSavedData}
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className="text-sm text-blue-600 hover:text-blue-800 underline"
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>
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清除
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</button>
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</div>
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)}
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{isSubmitted ? (
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<div className="text-center py-12 flex-1 flex items-center justify-center" data-testid="success-message">
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@@ -0,0 +1,81 @@
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import { render, screen, fireEvent, waitFor } from '@testing-library/react';
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import { BackToTop } from './back-to-top';
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// Mock useReducedMotion
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jest.mock('@/hooks/use-reduced-motion', () => ({
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useReducedMotion: () => false,
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}));
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// Mock AnimatePresence to always render children
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jest.mock('framer-motion', () => ({
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...jest.requireActual('framer-motion'),
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AnimatePresence: ({ children }: { children: React.ReactNode }) => <>{children}</>,
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motion: {
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button: ({ children, ...props }: React.ComponentProps<'button'>) => <button {...props}>{children}</button>,
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},
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}));
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describe('BackToTop', () => {
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let scrollYValue = 0;
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beforeEach(() => {
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jest.clearAllMocks();
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scrollYValue = 0;
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Object.defineProperty(window, 'scrollY', {
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get: () => scrollYValue,
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configurable: true,
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});
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window.scrollTo = jest.fn();
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window.addEventListener = jest.fn((event, handler) => {
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if (event === 'scroll') {
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// 模拟滚动事件触发
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(handler as EventListener)(new Event('scroll'));
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}
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});
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});
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it('should not render when scroll position is less than 500px', () => {
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scrollYValue = 0;
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const { container } = render(<BackToTop />);
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expect(container.firstChild).toBeNull();
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});
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it('should render button when scroll position is more than 500px', async () => {
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scrollYValue = 600;
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render(<BackToTop />);
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await waitFor(() => {
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const button = screen.getByRole('button', { name: /返回顶部/i });
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expect(button).toBeInTheDocument();
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});
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});
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it('should scroll to top when clicked', async () => {
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scrollYValue = 600;
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render(<BackToTop />);
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await waitFor(() => {
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const button = screen.getByRole('button', { name: /返回顶部/i });
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fireEvent.click(button);
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});
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expect(window.scrollTo).toHaveBeenCalledWith({
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top: 0,
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behavior: 'smooth',
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});
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});
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it('should have correct aria attributes', async () => {
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scrollYValue = 600;
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render(<BackToTop />);
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await waitFor(() => {
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const button = screen.getByRole('button');
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expect(button).toHaveAttribute('aria-label', '返回顶部');
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expect(button).toHaveAttribute('title', '返回顶部');
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});
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});
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});
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@@ -0,0 +1,52 @@
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'use client';
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import { useState, useEffect } from 'react';
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import { motion, AnimatePresence } from 'framer-motion';
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import { ArrowUp } from 'lucide-react';
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import { useReducedMotion } from '@/hooks/use-reduced-motion';
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export function BackToTop() {
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const [isVisible, setIsVisible] = useState(false);
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const shouldReduceMotion = useReducedMotion();
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useEffect(() => {
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const handleScroll = () => {
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// 当滚动超过 500px 时显示按钮
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setIsVisible(window.scrollY > 500);
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};
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window.addEventListener('scroll', handleScroll, { passive: true });
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return () => window.removeEventListener('scroll', handleScroll);
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}, []);
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const scrollToTop = () => {
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window.scrollTo({
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top: 0,
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behavior: shouldReduceMotion ? 'auto' : 'smooth',
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});
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};
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return (
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<AnimatePresence>
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{isVisible && (
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<motion.button
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initial={shouldReduceMotion ? {} : { opacity: 0, y: 20, scale: 0.8 }}
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animate={{ opacity: 1, y: 0, scale: 1 }}
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exit={shouldReduceMotion ? {} : { opacity: 0, y: 20, scale: 0.8 }}
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transition={{ duration: 0.2, ease: 'easeOut' }}
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onClick={scrollToTop}
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className="fixed bottom-8 right-8 z-50 p-3 bg-[#C41E3A] text-white rounded-full shadow-lg hover:bg-[#A01830] hover:shadow-xl transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-[#C41E3A] focus:ring-offset-2"
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aria-label="返回顶部"
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title="返回顶部"
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style={{
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boxShadow: '0 4px 14px rgba(196, 30, 58, 0.4)',
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}}
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whileHover={shouldReduceMotion ? {} : { scale: 1.1 }}
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whileTap={shouldReduceMotion ? {} : { scale: 0.95 }}
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>
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<ArrowUp className="w-6 h-6" />
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</motion.button>
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)}
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</AnimatePresence>
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);
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}
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@@ -1,136 +1,99 @@
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import { describe, it, expect, beforeEach, jest } from '@jest/globals';
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import { render, screen, fireEvent } from '@testing-library/react';
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import '@testing-library/jest-dom';
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import { render, screen, waitFor } from '@testing-library/react';
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import { OptimizedImage } from './optimized-image';
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// Mock next/image
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jest.mock('next/image', () => ({
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__esModule: true,
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default: ({ src, alt, onLoad, onError, className, ...props }: any) => (
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default: ({ onLoad, onError, className, ...props }: React.ComponentProps<'img'>) => (
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<img
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src={src}
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alt={alt}
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{...props}
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className={className}
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data-testid="optimized-image"
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onLoad={onLoad}
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onError={onError}
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data-testid="optimized-image"
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{...props}
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/>
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),
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}));
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describe('OptimizedImage', () => {
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const defaultProps = {
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src: '/test.jpg',
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alt: 'Test Image',
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width: 100,
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height: 100,
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};
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it('should render with loading state initially', () => {
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render(
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<OptimizedImage
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src="/test-image.jpg"
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alt="Test image"
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width={400}
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height={300}
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/>
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);
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beforeEach(() => {
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jest.clearAllMocks();
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// 应该显示加载动画
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expect(screen.getByTestId('optimized-image')).toHaveClass('opacity-0');
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});
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describe('Rendering', () => {
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it('should render optimized image', () => {
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render(<OptimizedImage {...defaultProps} />);
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expect(screen.getByTestId('optimized-image')).toBeInTheDocument();
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});
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it('should show error state when image fails to load', async () => {
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render(
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<OptimizedImage
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src="/invalid-image.jpg"
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alt="Invalid image"
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width={400}
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height={300}
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/>
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);
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it('should render with alt text', () => {
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render(<OptimizedImage {...defaultProps} />);
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expect(screen.getByAltText('Test Image')).toBeInTheDocument();
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});
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const img = screen.getByTestId('optimized-image');
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// 触发错误事件
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img.dispatchEvent(new Event('error'));
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it('should apply custom className', () => {
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render(<OptimizedImage {...defaultProps} className="custom-class" />);
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const image = screen.getByTestId('optimized-image');
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expect(image).toHaveClass('custom-class');
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});
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it('should apply container className', () => {
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const { container } = render(
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<OptimizedImage {...defaultProps} containerClassName="container-class" />
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);
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expect(container.firstChild).toHaveClass('container-class');
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await waitFor(() => {
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expect(screen.getByText('图片加载失败')).toBeInTheDocument();
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});
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});
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describe('Loading States', () => {
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it('should handle onLoad event', () => {
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const onLoad = jest.fn();
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render(<OptimizedImage {...defaultProps} onLoad={onLoad} />);
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const image = screen.getByTestId('optimized-image');
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fireEvent.load(image);
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expect(onLoad).toHaveBeenCalled();
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});
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it('should show image when loaded', async () => {
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render(
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<OptimizedImage
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src="/test-image.jpg"
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alt="Test image"
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width={400}
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height={300}
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/>
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);
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it('should handle onError event', () => {
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const onError = jest.fn();
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render(<OptimizedImage {...defaultProps} onError={onError} />);
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const image = screen.getByTestId('optimized-image');
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fireEvent.error(image);
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expect(onError).toHaveBeenCalled();
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});
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const img = screen.getByTestId('optimized-image');
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// 触发加载完成事件
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img.dispatchEvent(new Event('load'));
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it('should show error state on error', () => {
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render(<OptimizedImage {...defaultProps} />);
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const image = screen.getByTestId('optimized-image');
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fireEvent.error(image);
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const errorIcon = document.querySelector('svg');
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expect(errorIcon).toBeInTheDocument();
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await waitFor(() => {
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expect(img).toHaveClass('opacity-100');
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});
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});
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describe('Object Fit', () => {
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it('should apply cover object fit by default', () => {
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render(<OptimizedImage {...defaultProps} />);
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const image = screen.getByTestId('optimized-image');
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expect(image).toHaveClass('object-cover');
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});
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it('should render with correct alt text', () => {
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render(
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<OptimizedImage
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src="/test-image.jpg"
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alt="Descriptive alt text"
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width={400}
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height={300}
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/>
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);
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it('should apply contain object fit', () => {
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render(<OptimizedImage {...defaultProps} objectFit="contain" />);
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const image = screen.getByTestId('optimized-image');
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expect(image).toHaveClass('object-contain');
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});
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it('should apply fill object fit', () => {
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render(<OptimizedImage {...defaultProps} objectFit="fill" />);
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const image = screen.getByTestId('optimized-image');
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expect(image).toHaveClass('object-fill');
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});
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it('should apply none object fit', () => {
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render(<OptimizedImage {...defaultProps} objectFit="none" />);
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const image = screen.getByTestId('optimized-image');
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expect(image).toHaveClass('object-none');
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});
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it('should apply scale-down object fit', () => {
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render(<OptimizedImage {...defaultProps} objectFit="scale-down" />);
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const image = screen.getByTestId('optimized-image');
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expect(image).toHaveClass('object-scale-down');
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});
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expect(screen.getByAltText('Descriptive alt text')).toBeInTheDocument();
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});
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describe('Fill Mode', () => {
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it('should render in fill mode', () => {
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const { container } = render(<OptimizedImage {...defaultProps} fill />);
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expect(container.firstChild).toHaveClass('relative');
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});
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});
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it('should use fill mode when specified', () => {
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render(
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<OptimizedImage
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src="/test-image.jpg"
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alt="Fill mode image"
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fill
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className="object-cover"
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/>
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);
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describe('Priority', () => {
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it('should handle priority prop', () => {
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render(<OptimizedImage {...defaultProps} priority />);
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const image = screen.getByTestId('optimized-image');
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expect(image).toBeInTheDocument();
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});
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const container = screen.getByTestId('optimized-image').parentElement;
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expect(container).toHaveClass('relative', 'overflow-hidden', 'w-full', 'h-full');
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});
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});
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|
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@@ -1,7 +1,7 @@
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'use client';
|
||||
|
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import { useState, useCallback } from 'react';
|
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import Image from 'next/image';
|
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import { useState, useCallback, memo } from 'react';
|
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import { cn } from '@/lib/utils';
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|
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interface OptimizedImageProps {
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@@ -10,159 +10,103 @@ interface OptimizedImageProps {
|
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width?: number;
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height?: number;
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fill?: boolean;
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priority?: boolean;
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className?: string;
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containerClassName?: string;
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priority?: boolean;
|
||||
sizes?: string;
|
||||
quality?: number;
|
||||
placeholder?: 'blur' | 'empty';
|
||||
blurDataURL?: string;
|
||||
onLoad?: () => void;
|
||||
onError?: () => void;
|
||||
objectFit?: 'contain' | 'cover' | 'fill' | 'none' | 'scale-down';
|
||||
objectPosition?: string;
|
||||
loading?: 'lazy' | 'eager';
|
||||
unoptimized?: boolean;
|
||||
}
|
||||
|
||||
const shimmer = (w: number, h: number) => `
|
||||
<svg width="${w}" height="${h}" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
|
||||
<defs>
|
||||
<linearGradient id="g">
|
||||
<stop stop-color="#f0f0f0" offset="20%" />
|
||||
<stop stop-color="#e0e0e0" offset="50%" />
|
||||
<stop stop-color="#f0f0f0" offset="70%" />
|
||||
</linearGradient>
|
||||
</defs>
|
||||
<rect width="${w}" height="${h}" fill="#f0f0f0" />
|
||||
<rect id="r" width="${w}" height="${h}" fill="url(#g)" />
|
||||
<animate xlink:href="#r" attributeName="x" from="-${w}" to="${w}" dur="1s" repeatCount="indefinite" />
|
||||
</svg>`;
|
||||
|
||||
const toBase64 = (str: string) =>
|
||||
typeof window === 'undefined'
|
||||
? Buffer.from(str).toString('base64')
|
||||
: window.btoa(str);
|
||||
|
||||
const OptimizedImage = memo(function OptimizedImage({
|
||||
export function OptimizedImage({
|
||||
src,
|
||||
alt,
|
||||
width,
|
||||
height,
|
||||
fill = false,
|
||||
priority = false,
|
||||
className,
|
||||
containerClassName,
|
||||
sizes,
|
||||
priority = false,
|
||||
sizes = '(max-width: 768px) 100vw, (max-width: 1200px) 50vw, 33vw',
|
||||
quality = 85,
|
||||
placeholder = 'blur',
|
||||
blurDataURL,
|
||||
onLoad,
|
||||
onError,
|
||||
objectFit = 'cover',
|
||||
objectPosition = 'center',
|
||||
loading = 'lazy',
|
||||
unoptimized = false,
|
||||
}: OptimizedImageProps) {
|
||||
const [isLoading, setIsLoading] = useState(true);
|
||||
const [hasError, setHasError] = useState(false);
|
||||
const [isLoaded, setIsLoaded] = useState(false);
|
||||
const [error, setError] = useState(false);
|
||||
|
||||
// 生成默认的模糊占位符
|
||||
const defaultBlurDataURL = 'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI0MDAiIGhlaWdodD0iNDAwIj48cmVjdCB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBmaWxsPSIjZjFmNWY5Ii8+PC9zdmc+';
|
||||
|
||||
// 使用 callback 来处理加载状态
|
||||
const handleLoad = useCallback(() => {
|
||||
setIsLoading(false);
|
||||
onLoad?.();
|
||||
}, [onLoad]);
|
||||
setIsLoaded(true);
|
||||
}, []);
|
||||
|
||||
const handleError = useCallback(() => {
|
||||
setIsLoading(false);
|
||||
setHasError(true);
|
||||
onError?.();
|
||||
}, [onError]);
|
||||
setError(true);
|
||||
}, []);
|
||||
|
||||
const defaultBlurDataURL = blurDataURL || (width && height ? `data:image/svg+xml;base64,${toBase64(shimmer(width, height))}` : undefined);
|
||||
|
||||
const objectFitClass = {
|
||||
contain: 'object-contain',
|
||||
cover: 'object-cover',
|
||||
fill: 'object-fill',
|
||||
none: 'object-none',
|
||||
'scale-down': 'object-scale-down',
|
||||
}[objectFit];
|
||||
|
||||
if (hasError) {
|
||||
if (error) {
|
||||
return (
|
||||
<div
|
||||
className={cn(
|
||||
'flex items-center justify-center bg-gray-100 text-gray-400',
|
||||
'bg-gray-100 flex items-center justify-center',
|
||||
containerClassName
|
||||
)}
|
||||
style={width && height ? { width, height } : undefined}
|
||||
style={!fill ? { width, height } : undefined}
|
||||
>
|
||||
<svg
|
||||
className="w-12 h-12"
|
||||
fill="none"
|
||||
stroke="currentColor"
|
||||
viewBox="0 0 24 24"
|
||||
>
|
||||
<path
|
||||
strokeLinecap="round"
|
||||
strokeLinejoin="round"
|
||||
strokeWidth={1.5}
|
||||
d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z"
|
||||
/>
|
||||
</svg>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
||||
const imageElement = (
|
||||
<Image
|
||||
src={src}
|
||||
alt={alt}
|
||||
width={fill ? undefined : width}
|
||||
height={fill ? undefined : height}
|
||||
fill={fill}
|
||||
priority={priority}
|
||||
sizes={sizes}
|
||||
quality={quality}
|
||||
placeholder={placeholder}
|
||||
blurDataURL={defaultBlurDataURL}
|
||||
onLoad={handleLoad}
|
||||
onError={handleError}
|
||||
loading={priority ? 'eager' : loading}
|
||||
unoptimized={unoptimized}
|
||||
className={cn(
|
||||
'transition-opacity duration-300',
|
||||
isLoading ? 'opacity-0' : 'opacity-100',
|
||||
objectFitClass,
|
||||
className
|
||||
)}
|
||||
style={{ objectPosition }}
|
||||
/>
|
||||
);
|
||||
|
||||
if (fill) {
|
||||
return (
|
||||
<div className={cn('relative overflow-hidden', containerClassName)}>
|
||||
{imageElement}
|
||||
{isLoading && (
|
||||
<div className="absolute inset-0 animate-pulse bg-gray-200" />
|
||||
)}
|
||||
<span className="text-gray-400 text-sm">图片加载失败</span>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
||||
return (
|
||||
<div className={cn('relative overflow-hidden', containerClassName)}>
|
||||
{imageElement}
|
||||
{isLoading && (
|
||||
<div
|
||||
className={cn(
|
||||
'relative overflow-hidden',
|
||||
fill ? 'w-full h-full' : '',
|
||||
containerClassName
|
||||
)}
|
||||
style={!fill ? { width, height } : undefined}
|
||||
>
|
||||
{/* 模糊占位符背景 */}
|
||||
{!isLoaded && placeholder === 'blur' && (
|
||||
<div
|
||||
className="absolute inset-0 animate-pulse bg-gray-200"
|
||||
style={width && height ? { width, height } : undefined}
|
||||
className="absolute inset-0 bg-cover bg-center blur-sm scale-110 transition-opacity duration-500"
|
||||
style={{
|
||||
backgroundImage: `url(${blurDataURL || defaultBlurDataURL})`,
|
||||
}}
|
||||
/>
|
||||
)}
|
||||
|
||||
{/* 加载动画 */}
|
||||
{!isLoaded && (
|
||||
<div className="absolute inset-0 flex items-center justify-center">
|
||||
<div className="w-8 h-8 border-2 border-gray-200 border-t-[#C41E3A] rounded-full animate-spin" />
|
||||
</div>
|
||||
)}
|
||||
|
||||
<Image
|
||||
src={src}
|
||||
alt={alt}
|
||||
width={fill ? undefined : width}
|
||||
height={fill ? undefined : height}
|
||||
fill={fill}
|
||||
priority={priority}
|
||||
sizes={sizes}
|
||||
quality={quality}
|
||||
placeholder={placeholder}
|
||||
blurDataURL={blurDataURL || defaultBlurDataURL}
|
||||
className={cn(
|
||||
'transition-opacity duration-500',
|
||||
isLoaded ? 'opacity-100' : 'opacity-0',
|
||||
className
|
||||
)}
|
||||
onLoad={handleLoad}
|
||||
onError={handleError}
|
||||
/>
|
||||
</div>
|
||||
);
|
||||
});
|
||||
|
||||
export { OptimizedImage };
|
||||
export type { OptimizedImageProps };
|
||||
}
|
||||
|
||||
@@ -0,0 +1,54 @@
|
||||
import { render, screen, waitFor } from '@testing-library/react';
|
||||
import { ScrollProgress } from './scroll-progress';
|
||||
|
||||
// Mock framer-motion
|
||||
jest.mock('framer-motion', () => ({
|
||||
motion: {
|
||||
div: ({ children, ...props }: React.ComponentProps<'div'>) => <div {...props}>{children}</div>,
|
||||
},
|
||||
useScroll: () => ({ scrollYProgress: { get: () => 0, onChange: jest.fn() } }),
|
||||
useSpring: () => ({ get: () => 0 }),
|
||||
}));
|
||||
|
||||
// Mock useReducedMotion
|
||||
jest.mock('@/hooks/use-reduced-motion', () => ({
|
||||
useReducedMotion: () => false,
|
||||
}));
|
||||
|
||||
describe('ScrollProgress', () => {
|
||||
let scrollYValue = 0;
|
||||
|
||||
beforeEach(() => {
|
||||
jest.clearAllMocks();
|
||||
scrollYValue = 0;
|
||||
Object.defineProperty(window, 'scrollY', {
|
||||
get: () => scrollYValue,
|
||||
configurable: true,
|
||||
});
|
||||
window.addEventListener = jest.fn((event, handler) => {
|
||||
if (event === 'scroll') {
|
||||
(handler as EventListener)(new Event('scroll'));
|
||||
}
|
||||
});
|
||||
});
|
||||
|
||||
it('should not render when scroll position is less than 100px', () => {
|
||||
scrollYValue = 0;
|
||||
const { container } = render(<ScrollProgress />);
|
||||
expect(container.firstChild).toBeNull();
|
||||
});
|
||||
|
||||
it('should render progressbar with correct ARIA attributes when visible', async () => {
|
||||
scrollYValue = 150;
|
||||
|
||||
render(<ScrollProgress />);
|
||||
|
||||
await waitFor(() => {
|
||||
const progressbar = screen.getByRole('progressbar');
|
||||
expect(progressbar).toBeInTheDocument();
|
||||
expect(progressbar).toHaveAttribute('aria-label', '页面滚动进度');
|
||||
expect(progressbar).toHaveAttribute('aria-valuemin', '0');
|
||||
expect(progressbar).toHaveAttribute('aria-valuemax', '100');
|
||||
});
|
||||
});
|
||||
});
|
||||
@@ -0,0 +1,52 @@
|
||||
'use client';
|
||||
|
||||
import { useState, useEffect } from 'react';
|
||||
import { motion, useScroll, useSpring } from 'framer-motion';
|
||||
import { useReducedMotion } from '@/hooks/use-reduced-motion';
|
||||
|
||||
export function ScrollProgress() {
|
||||
const [isVisible, setIsVisible] = useState(false);
|
||||
const shouldReduceMotion = useReducedMotion();
|
||||
const { scrollYProgress } = useScroll();
|
||||
|
||||
// 使用弹簧动画使进度条移动更平滑
|
||||
const scaleX = useSpring(scrollYProgress, {
|
||||
stiffness: 100,
|
||||
damping: 30,
|
||||
restDelta: 0.001,
|
||||
});
|
||||
|
||||
useEffect(() => {
|
||||
// 当滚动超过 100px 时显示进度条
|
||||
const handleScroll = () => {
|
||||
setIsVisible(window.scrollY > 100);
|
||||
};
|
||||
|
||||
window.addEventListener('scroll', handleScroll, { passive: true });
|
||||
return () => window.removeEventListener('scroll', handleScroll);
|
||||
}, []);
|
||||
|
||||
if (!isVisible) {return null;}
|
||||
|
||||
return (
|
||||
<motion.div
|
||||
initial={shouldReduceMotion ? {} : { opacity: 0 }}
|
||||
animate={{ opacity: 1 }}
|
||||
exit={shouldReduceMotion ? {} : { opacity: 0 }}
|
||||
transition={{ duration: 0.2 }}
|
||||
className="fixed top-0 left-0 right-0 h-1 z-[100] bg-transparent"
|
||||
role="progressbar"
|
||||
aria-label="页面滚动进度"
|
||||
aria-valuemin={0}
|
||||
aria-valuemax={100}
|
||||
>
|
||||
<motion.div
|
||||
className="h-full bg-gradient-to-r from-[#C41E3A] to-[#E04A68] origin-left"
|
||||
style={{
|
||||
scaleX,
|
||||
boxShadow: '0 0 10px rgba(196, 30, 58, 0.3)',
|
||||
}}
|
||||
/>
|
||||
</motion.div>
|
||||
);
|
||||
}
|
||||
Reference in New Issue
Block a user