uchill/front_material/components/common/LoadingSpinner.tsx

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'use client';
import { useEffect, useState } from 'react';
import { loadComponent } from '@/lib/material-components';
const sizeMap = {
small: '24px',
medium: '48px',
large: '64px',
} as const;
interface LoadingSpinnerProps {
size?: 'small' | 'medium' | 'large';
inline?: boolean;
/** Занимает всё доступное пространство страницы - предотвращает layout shift */
fullPage?: boolean;
}
export function LoadingSpinner({
size = 'medium',
inline = false,
fullPage = false,
}: LoadingSpinnerProps) {
const [mounted, setMounted] = useState(false);
const [componentsLoaded, setComponentsLoaded] = useState(false);
useEffect(() => {
setMounted(true);
loadComponent('circular-progress').then(() => {
setComponentsLoaded(true);
});
}, []);
// Стили для fullPage режима - занимает всё пространство, предотвращает дёрганье
const fullPageStyle: React.CSSProperties = fullPage ? {
display: 'flex',
justifyContent: 'center',
alignItems: 'center',
width: '100%',
height: '100%',
minHeight: '100%',
flex: 1,
background: 'var(--md-sys-color-background)',
} : {};
if (!mounted || !componentsLoaded) {
if (inline) {
return (
<span
className="material-symbols-outlined"
style={{ fontSize: sizeMap[size], animation: 'lk-spin 1s linear infinite' }}
>
progress_activity
</span>
);
}
if (fullPage) {
return (
<div style={fullPageStyle}>
<span
className="material-symbols-outlined"
style={{ fontSize: sizeMap[size], animation: 'lk-spin 1s linear infinite', color: 'var(--md-sys-color-primary)' }}
>
progress_activity
</span>
</div>
);
}
return <div>Загрузка...</div>;
}
return (
<div
style={{
display: 'flex',
justifyContent: 'center',
alignItems: 'center',
...(fullPage ? fullPageStyle : {}),
...(inline ? { padding: 0, width: sizeMap[size], height: sizeMap[size] } : { padding: '20px' }),
}}
>
<md-circular-progress
indeterminate
style={{
width: sizeMap[size],
height: sizeMap[size],
}}
/>
</div>
);
}