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import { Box, Container, styled, Typography } from '@mui/material';
import React from 'react';
import { useInView } from 'react-intersection-observer';
import Particles from 'react-tsparticles';
import Typed from 'react-typed';
import imageBanner from '@/assets/banner.webp';
import { SectionFadeIn } from '@/components/elements';
import { meta, sections, styles } from '@/constants';
import { stringFormat } from '@/utils/strings';
const Image = styled(Box)(({ theme }) =>
theme.unstable_sx({
position: 'absolute',
left: 0,
right: 0,
top: 0,
bottom: 0,
backgroundSize: 'cover',
backgroundRepeat: 'no-repeat',
backgroundPosition: 'center center',
})
);
const FreezableParticles = React.memo(function _({ inView }: { inView: boolean }) {
Iif (!inView) {
console.debug('particles is hidden.');
return null;
}
console.debug('particles rendered');
return (
<Particles
options={{
style: {
position: 'absolute',
},
particles: {
color: {
value: '#ff0000',
animation: { h: { enable: true, speed: 100 } },
},
opacity: {
value: 0.7,
},
size: {
value: { min: 0.1, max: 3 },
},
number: {
value: 70,
density: { enable: true },
},
move: {
enable: true,
speed: 3,
},
links: {
enable: true,
opacity: 0.7,
color: { value: '#ffffff' },
},
},
}}
data-testid="Banner__Particles"
/>
);
});
export const Banner = () => {
const { ref, inView } = useInView(styles.intersectionOptions);
const handleScrollClick = React.useCallback(() => {
const element = document.getElementById(sections.products);
Iif (element) {
const offset = -20;
const elementPosition = element.getBoundingClientRect().top + window.scrollY;
window.scrollTo({
top: elementPosition + offset,
behavior: 'smooth',
});
}
}, []);
const bannerTexts = [`I'm ${meta.author}.`, 'Welcome to my portfolio site.'];
const bannerFormats = [
'print("{0}")',
'cat("{0}")',
'NSLog(@"{0}")',
'DISPLAY "{0}"',
'puts "{0}"',
'write("{0}")',
'ECHO {0}',
];
const strings = [];
for (let i = 0; i < bannerFormats.length * bannerTexts.length; i++)
strings.push(stringFormat(bannerFormats[i % bannerFormats.length], bannerTexts[i % bannerTexts.length]));
return (
<SectionFadeIn in={inView} ref={ref}>
<Box>
{
// ------------------------------------------------------------------------------
// イメージ
// ------------------------------------------------------------------------------
}
<Image sx={{ backgroundImage: `url(${imageBanner})` }} data-testid="Banner__Image" />
{
// ------------------------------------------------------------------------------
// パーティクル
// ------------------------------------------------------------------------------
}
<FreezableParticles inView={inView} />
{
// ------------------------------------------------------------------------------
// テキストエフェクト
// ------------------------------------------------------------------------------
}
<Box
sx={{
display: 'flex',
alignItems: 'center',
height: '100vh',
}}
>
<Container sx={{ zIndex: 1 }}>
<Box
sx={{
color: 'common.white',
bgcolor: '#111d',
borderRadius: 2,
boxShadow: 1,
p: { xs: 2, sm: 4 },
mb: 8, // 若干上寄りに配置する
}}
>
<Typography sx={{ fontSize: 32, fontWeight: 'bold' }} data-testid="Banner__Text">
<Typed strings={strings} typeSpeed={50} backSpeed={20} backDelay={1800} loop />
</Typography>
</Box>
</Container>
</Box>
{
// ------------------------------------------------------------------------------
// スクロールアロー
// ------------------------------------------------------------------------------
}
<Box
sx={{
position: 'absolute',
bottom: '20vh',
left: '50%',
transform: 'translateX(-50%)',
}}
>
<style>
{`@keyframes move-y {
from { transform: translateY(0); }
to { transform: translateY(10px); }
}`}
</style>
<KeyboardDoubleArrowDownIcon
onClick={handleScrollClick}
sx={{
width: 40,
height: 40,
cursor: 'pointer',
color: 'common.white',
// アニメーションを増やすと煩いので一旦オフ
// animation: 'move-y .75s infinite alternate ease-in-out',
}}
data-testid="Banner__ScrollArrow"
/>
</Box>
</Box>
</SectionFadeIn>
);
};
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