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Skeleton.js
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Mon, Jan 27, 08:01

Skeleton.js
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import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import _extends from "@babel/runtime/helpers/esm/extends";
const _excluded = ["animation", "className", "component", "height", "style", "variant", "width"];
let _ = t => t,
_t,
_t2,
_t3,
_t4;
import * as React from 'react';
import clsx from 'clsx';
import PropTypes from 'prop-types';
import { keyframes, css } from '@mui/system';
import { unstable_composeClasses as composeClasses } from '@mui/base';
import { alpha, unstable_getUnit as getUnit, unstable_toUnitless as toUnitless } from '../styles';
import styled from '../styles/styled';
import useThemeProps from '../styles/useThemeProps';
import { getSkeletonUtilityClass } from './skeletonClasses';
import { jsx as _jsx } from "react/jsx-runtime";
const useUtilityClasses = ownerState => {
const {
classes,
variant,
animation,
hasChildren,
width,
height
} = ownerState;
const slots = {
root: ['root', variant, animation, hasChildren && 'withChildren', hasChildren && !width && 'fitContent', hasChildren && !height && 'heightAuto']
};
return composeClasses(slots, getSkeletonUtilityClass, classes);
};
const pulseKeyframe = keyframes(_t || (_t = _`
0% {
opacity: 1;
}
50% {
opacity: 0.4;
}
100% {
opacity: 1;
}
`));
const waveKeyframe = keyframes(_t2 || (_t2 = _`
0% {
transform: translateX(-100%);
}
50% {
/* +0.5s of delay between each loop */
transform: translateX(100%);
}
100% {
transform: translateX(100%);
}
`));
const SkeletonRoot = styled('span', {
name: 'MuiSkeleton',
slot: 'Root',
overridesResolver: (props, styles) => {
const {
ownerState
} = props;
return [styles.root, styles[ownerState.variant], ownerState.animation !== false && styles[ownerState.animation], ownerState.hasChildren && styles.withChildren, ownerState.hasChildren && !ownerState.width && styles.fitContent, ownerState.hasChildren && !ownerState.height && styles.heightAuto];
}
})(({
theme,
ownerState
}) => {
const radiusUnit = getUnit(theme.shape.borderRadius) || 'px';
const radiusValue = toUnitless(theme.shape.borderRadius);
return _extends({
display: 'block',
// Create a "on paper" color with sufficient contrast retaining the color
backgroundColor: theme.vars ? theme.vars.palette.Skeleton.bg : alpha(theme.palette.text.primary, theme.palette.mode === 'light' ? 0.11 : 0.13),
height: '1.2em'
}, ownerState.variant === 'text' && {
marginTop: 0,
marginBottom: 0,
height: 'auto',
transformOrigin: '0 55%',
transform: 'scale(1, 0.60)',
borderRadius: `${radiusValue}${radiusUnit}/${Math.round(radiusValue / 0.6 * 10) / 10}${radiusUnit}`,
'&:empty:before': {
content: '"\\00a0"'
}
}, ownerState.variant === 'circular' && {
borderRadius: '50%'
}, ownerState.variant === 'rounded' && {
borderRadius: (theme.vars || theme).shape.borderRadius
}, ownerState.hasChildren && {
'& > *': {
visibility: 'hidden'
}
}, ownerState.hasChildren && !ownerState.width && {
maxWidth: 'fit-content'
}, ownerState.hasChildren && !ownerState.height && {
height: 'auto'
});
}, ({
ownerState
}) => ownerState.animation === 'pulse' && css(_t3 || (_t3 = _`
animation: ${0} 1.5s ease-in-out 0.5s infinite;
`), pulseKeyframe), ({
ownerState,
theme
}) => ownerState.animation === 'wave' && css(_t4 || (_t4 = _`
position: relative;
overflow: hidden;
/* Fix bug in Safari https://bugs.webkit.org/show_bug.cgi?id=68196 */
-webkit-mask-image: -webkit-radial-gradient(white, black);
&::after {
animation: ${0} 1.6s linear 0.5s infinite;
background: linear-gradient(
90deg,
transparent,
${0},
transparent
);
content: '';
position: absolute;
transform: translateX(-100%); /* Avoid flash during server-side hydration */
bottom: 0;
left: 0;
right: 0;
top: 0;
}
`), waveKeyframe, (theme.vars || theme).palette.action.hover));
const Skeleton = /*#__PURE__*/React.forwardRef(function Skeleton(inProps, ref) {
const props = useThemeProps({
props: inProps,
name: 'MuiSkeleton'
});
const {
animation = 'pulse',
className,
component = 'span',
height,
style,
variant = 'text',
width
} = props,
other = _objectWithoutPropertiesLoose(props, _excluded);
const ownerState = _extends({}, props, {
animation,
component,
variant,
hasChildren: Boolean(other.children)
});
const classes = useUtilityClasses(ownerState);
return /*#__PURE__*/_jsx(SkeletonRoot, _extends({
as: component,
ref: ref,
className: clsx(classes.root, className),
ownerState: ownerState
}, other, {
style: _extends({
width,
height
}, style)
}));
});
process.env.NODE_ENV !== "production" ? Skeleton.propTypes /* remove-proptypes */ = {
// ----------------------------- Warning --------------------------------
// | These PropTypes are generated from the TypeScript type definitions |
// | To update them edit the d.ts file and run "yarn proptypes" |
// ----------------------------------------------------------------------
/**
* The animation.
* If `false` the animation effect is disabled.
* @default 'pulse'
*/
animation: PropTypes.oneOf(['pulse', 'wave', false]),
/**
* Optional children to infer width and height from.
*/
children: PropTypes.node,
/**
* Override or extend the styles applied to the component.
*/
classes: PropTypes.object,
/**
* @ignore
*/
className: PropTypes.string,
/**
* The component used for the root node.
* Either a string to use a HTML element or a component.
*/
component: PropTypes.elementType,
/**
* Height of the skeleton.
* Useful when you don't want to adapt the skeleton to a text element but for instance a card.
*/
height: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
/**
* @ignore
*/
style: PropTypes.object,
/**
* The system prop that allows defining system overrides as well as additional CSS styles.
*/
sx: PropTypes.oneOfType([PropTypes.arrayOf(PropTypes.oneOfType([PropTypes.func, PropTypes.object, PropTypes.bool])), PropTypes.func, PropTypes.object]),
/**
* The type of content that will be rendered.
* @default 'text'
*/
variant: PropTypes /* @typescript-to-proptypes-ignore */.oneOfType([PropTypes.oneOf(['circular', 'rectangular', 'rounded', 'text']), PropTypes.string]),
/**
* Width of the skeleton.
* Useful when the skeleton is inside an inline element with no width of its own.
*/
width: PropTypes.oneOfType([PropTypes.number, PropTypes.string])
} : void 0;
export default Skeleton;

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