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createStyled.js
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Fri, Jan 24, 18:43

createStyled.js

import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import _extends from "@babel/runtime/helpers/esm/extends";
const _excluded = ["name", "slot", "skipVariantsResolver", "skipSx", "overridesResolver"],
_excluded2 = ["theme"],
_excluded3 = ["theme"];
/* eslint-disable no-underscore-dangle */
import styledEngineStyled, { internal_processStyles as processStyles } from '@mui/styled-engine';
import { getDisplayName } from '@mui/utils';
import createTheme from './createTheme';
import propsToClassKey from './propsToClassKey';
import styleFunctionSx from './styleFunctionSx';
function isEmpty(obj) {
return Object.keys(obj).length === 0;
}
// https://github.com/emotion-js/emotion/blob/26ded6109fcd8ca9875cc2ce4564fee678a3f3c5/packages/styled/src/utils.js#L40
function isStringTag(tag) {
return typeof tag === 'string' &&
// 96 is one less than the char code
// for "a" so this is checking that
// it's a lowercase character
tag.charCodeAt(0) > 96;
}
const getStyleOverrides = (name, theme) => {
if (theme.components && theme.components[name] && theme.components[name].styleOverrides) {
return theme.components[name].styleOverrides;
}
return null;
};
const getVariantStyles = (name, theme) => {
let variants = [];
if (theme && theme.components && theme.components[name] && theme.components[name].variants) {
variants = theme.components[name].variants;
}
const variantsStyles = {};
variants.forEach(definition => {
const key = propsToClassKey(definition.props);
variantsStyles[key] = definition.style;
});
return variantsStyles;
};
const variantsResolver = (props, styles, theme, name) => {
const {
ownerState = {}
} = props;
const variantsStyles = [];
const themeVariants = theme?.components?.[name]?.variants;
if (themeVariants) {
themeVariants.forEach(themeVariant => {
let isMatch = true;
Object.keys(themeVariant.props).forEach(key => {
if (ownerState[key] !== themeVariant.props[key] && props[key] !== themeVariant.props[key]) {
isMatch = false;
}
});
if (isMatch) {
variantsStyles.push(styles[propsToClassKey(themeVariant.props)]);
}
});
}
return variantsStyles;
};
// Update /system/styled/#api in case if this changes
export function shouldForwardProp(prop) {
return prop !== 'ownerState' && prop !== 'theme' && prop !== 'sx' && prop !== 'as';
}
export const systemDefaultTheme = createTheme();
const lowercaseFirstLetter = string => {
return string.charAt(0).toLowerCase() + string.slice(1);
};
export default function createStyled(input = {}) {
const {
defaultTheme = systemDefaultTheme,
rootShouldForwardProp = shouldForwardProp,
slotShouldForwardProp = shouldForwardProp
} = input;
const systemSx = props => {
const theme = isEmpty(props.theme) ? defaultTheme : props.theme;
return styleFunctionSx(_extends({}, props, {
theme
}));
};
systemSx.__mui_systemSx = true;
return (tag, inputOptions = {}) => {
// Filter out the `sx` style function from the previous styled component to prevent unnecessary styles generated by the composite components.
processStyles(tag, styles => styles.filter(style => !style?.__mui_systemSx));
const {
name: componentName,
slot: componentSlot,
skipVariantsResolver: inputSkipVariantsResolver,
skipSx: inputSkipSx,
overridesResolver
} = inputOptions,
options = _objectWithoutPropertiesLoose(inputOptions, _excluded);
// if skipVariantsResolver option is defined, take the value, otherwise, true for root and false for other slots.
const skipVariantsResolver = inputSkipVariantsResolver !== undefined ? inputSkipVariantsResolver : componentSlot && componentSlot !== 'Root' || false;
const skipSx = inputSkipSx || false;
let label;
if (process.env.NODE_ENV !== 'production') {
if (componentName) {
label = `${componentName}-${lowercaseFirstLetter(componentSlot || 'Root')}`;
}
}
let shouldForwardPropOption = shouldForwardProp;
if (componentSlot === 'Root') {
shouldForwardPropOption = rootShouldForwardProp;
} else if (componentSlot) {
// any other slot specified
shouldForwardPropOption = slotShouldForwardProp;
} else if (isStringTag(tag)) {
// for string (html) tag, preserve the behavior in emotion & styled-components.
shouldForwardPropOption = undefined;
}
const defaultStyledResolver = styledEngineStyled(tag, _extends({
shouldForwardProp: shouldForwardPropOption,
label
}, options));
const muiStyledResolver = (styleArg, ...expressions) => {
const expressionsWithDefaultTheme = expressions ? expressions.map(stylesArg => {
// On the server Emotion doesn't use React.forwardRef for creating components, so the created
// component stays as a function. This condition makes sure that we do not interpolate functions
// which are basically components used as a selectors.
return typeof stylesArg === 'function' && stylesArg.__emotion_real !== stylesArg ? _ref => {
let {
theme: themeInput
} = _ref,
other = _objectWithoutPropertiesLoose(_ref, _excluded2);
return stylesArg(_extends({
theme: isEmpty(themeInput) ? defaultTheme : themeInput
}, other));
} : stylesArg;
}) : [];
let transformedStyleArg = styleArg;
if (componentName && overridesResolver) {
expressionsWithDefaultTheme.push(props => {
const theme = isEmpty(props.theme) ? defaultTheme : props.theme;
const styleOverrides = getStyleOverrides(componentName, theme);
if (styleOverrides) {
const resolvedStyleOverrides = {};
Object.entries(styleOverrides).forEach(([slotKey, slotStyle]) => {
resolvedStyleOverrides[slotKey] = typeof slotStyle === 'function' ? slotStyle(_extends({}, props, {
theme
})) : slotStyle;
});
return overridesResolver(props, resolvedStyleOverrides);
}
return null;
});
}
if (componentName && !skipVariantsResolver) {
expressionsWithDefaultTheme.push(props => {
const theme = isEmpty(props.theme) ? defaultTheme : props.theme;
return variantsResolver(props, getVariantStyles(componentName, theme), theme, componentName);
});
}
if (!skipSx) {
expressionsWithDefaultTheme.push(systemSx);
}
const numOfCustomFnsApplied = expressionsWithDefaultTheme.length - expressions.length;
if (Array.isArray(styleArg) && numOfCustomFnsApplied > 0) {
const placeholders = new Array(numOfCustomFnsApplied).fill('');
// If the type is array, than we need to add placeholders in the template for the overrides, variants and the sx styles.
transformedStyleArg = [...styleArg, ...placeholders];
transformedStyleArg.raw = [...styleArg.raw, ...placeholders];
} else if (typeof styleArg === 'function' &&
// On the server Emotion doesn't use React.forwardRef for creating components, so the created
// component stays as a function. This condition makes sure that we do not interpolate functions
// which are basically components used as a selectors.
styleArg.__emotion_real !== styleArg) {
// If the type is function, we need to define the default theme.
transformedStyleArg = _ref2 => {
let {
theme: themeInput
} = _ref2,
other = _objectWithoutPropertiesLoose(_ref2, _excluded3);
return styleArg(_extends({
theme: isEmpty(themeInput) ? defaultTheme : themeInput
}, other));
};
}
const Component = defaultStyledResolver(transformedStyleArg, ...expressionsWithDefaultTheme);
if (process.env.NODE_ENV !== 'production') {
let displayName;
if (componentName) {
displayName = `${componentName}${componentSlot || ''}`;
}
if (displayName === undefined) {
displayName = `Styled(${getDisplayName(tag)})`;
}
Component.displayName = displayName;
}
return Component;
};
if (defaultStyledResolver.withConfig) {
muiStyledResolver.withConfig = defaultStyledResolver.withConfig;
}
return muiStyledResolver;
};
}

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