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styleFunctionSx.js
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Mon, Feb 10, 02:03

styleFunctionSx.js
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import { unstable_capitalize as capitalize } from '@mui/utils';
import merge from '../merge';
import { getPath, getStyleValue as getValue } from '../style';
import { handleBreakpoints, createEmptyBreakpointObject, removeUnusedBreakpoints } from '../breakpoints';
import defaultSxConfig from './defaultSxConfig';
function objectsHaveSameKeys(...objects) {
const allKeys = objects.reduce((keys, object) => keys.concat(Object.keys(object)), []);
const union = new Set(allKeys);
return objects.every(object => union.size === Object.keys(object).length);
}
function callIfFn(maybeFn, arg) {
return typeof maybeFn === 'function' ? maybeFn(arg) : maybeFn;
}
// eslint-disable-next-line @typescript-eslint/naming-convention
export function unstable_createStyleFunctionSx() {
function getThemeValue(prop, val, theme, config) {
const props = {
[prop]: val,
theme
};
const options = config[prop];
if (!options) {
return {
[prop]: val
};
}
const {
cssProperty = prop,
themeKey,
transform,
style
} = options;
if (val == null) {
return null;
}
const themeMapping = getPath(theme, themeKey) || {};
if (style) {
return style(props);
}
const styleFromPropValue = propValueFinal => {
let value = getValue(themeMapping, transform, propValueFinal);
if (propValueFinal === value && typeof propValueFinal === 'string') {
// Haven't found value
value = getValue(themeMapping, transform, `${prop}${propValueFinal === 'default' ? '' : capitalize(propValueFinal)}`, propValueFinal);
}
if (cssProperty === false) {
return value;
}
return {
[cssProperty]: value
};
};
return handleBreakpoints(props, val, styleFromPropValue);
}
function styleFunctionSx(props) {
var _theme$unstable_sxCon;
const {
sx,
theme = {}
} = props || {};
if (!sx) {
return null; // Emotion & styled-components will neglect null
}
const config = (_theme$unstable_sxCon = theme.unstable_sxConfig) != null ? _theme$unstable_sxCon : defaultSxConfig;
/*
* Receive `sxInput` as object or callback
* and then recursively check keys & values to create media query object styles.
* (the result will be used in `styled`)
*/
function traverse(sxInput) {
let sxObject = sxInput;
if (typeof sxInput === 'function') {
sxObject = sxInput(theme);
} else if (typeof sxInput !== 'object') {
// value
return sxInput;
}
if (!sxObject) {
return null;
}
const emptyBreakpoints = createEmptyBreakpointObject(theme.breakpoints);
const breakpointsKeys = Object.keys(emptyBreakpoints);
let css = emptyBreakpoints;
Object.keys(sxObject).forEach(styleKey => {
const value = callIfFn(sxObject[styleKey], theme);
if (value !== null && value !== undefined) {
if (typeof value === 'object') {
if (config[styleKey]) {
css = merge(css, getThemeValue(styleKey, value, theme, config));
} else {
const breakpointsValues = handleBreakpoints({
theme
}, value, x => ({
[styleKey]: x
}));
if (objectsHaveSameKeys(breakpointsValues, value)) {
css[styleKey] = styleFunctionSx({
sx: value,
theme
});
} else {
css = merge(css, breakpointsValues);
}
}
} else {
css = merge(css, getThemeValue(styleKey, value, theme, config));
}
}
});
return removeUnusedBreakpoints(breakpointsKeys, css);
}
return Array.isArray(sx) ? sx.map(traverse) : traverse(sx);
}
return styleFunctionSx;
}
const styleFunctionSx = unstable_createStyleFunctionSx();
styleFunctionSx.filterProps = ['sx'];
export default styleFunctionSx;

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