createTypography.js
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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = createTypography;
var _deepmerge = _interopRequireDefault(require("@mui/utils/deepmerge"));
function round(value) {
return Math.round(value * 1e5) / 1e5;
}
const caseAllCaps = {
textTransform: 'uppercase'
};
const defaultFontFamily = '"Roboto", "Helvetica", "Arial", sans-serif';
/**
* @see @link{https://m2.material.io/design/typography/the-type-system.html}
* @see @link{https://m2.material.io/design/typography/understanding-typography.html}
*/
function createTypography(palette, typography) {
const {
fontFamily = defaultFontFamily,
// The default font size of the Material Specification.
fontSize = 14,
// px
fontWeightLight = 300,
fontWeightRegular = 400,
fontWeightMedium = 500,
fontWeightBold = 700,
// Tell MUI what's the font-size on the html element.
// 16px is the default font-size used by browsers.
htmlFontSize = 16,
// Apply the CSS properties to all the variants.
allVariants,
pxToRem: pxToRem2,
...other
} = typeof typography === 'function' ? typography(palette) : typography;
if (process.env.NODE_ENV !== 'production') {
if (typeof fontSize !== 'number') {
console.error('MUI: `fontSize` is required to be a number.');
}
if (typeof htmlFontSize !== 'number') {
console.error('MUI: `htmlFontSize` is required to be a number.');
}
}
const coef = fontSize / 14;
const pxToRem = pxToRem2 || (size => `${size / htmlFontSize * coef}rem`);
const buildVariant = (fontWeight, size, lineHeight, letterSpacing, casing) => ({
fontFamily,
fontWeight,
fontSize: pxToRem(size),
// Unitless following https://meyerweb.com/eric/thoughts/2006/02/08/unitless-line-heights/
lineHeight,
// The letter spacing was designed for the Roboto font-family. Using the same letter-spacing
// across font-families can cause issues with the kerning.
...(fontFamily === defaultFontFamily ? {
letterSpacing: `${round(letterSpacing / size)}em`
} : {}),
...casing,
...allVariants
});
const variants = {
h1: buildVariant(fontWeightLight, 96, 1.167, -1.5),
h2: buildVariant(fontWeightLight, 60, 1.2, -0.5),
h3: buildVariant(fontWeightRegular, 48, 1.167, 0),
h4: buildVariant(fontWeightRegular, 34, 1.235, 0.25),
h5: buildVariant(fontWeightRegular, 24, 1.334, 0),
h6: buildVariant(fontWeightMedium, 20, 1.6, 0.15),
subtitle1: buildVariant(fontWeightRegular, 16, 1.75, 0.15),
subtitle2: buildVariant(fontWeightMedium, 14, 1.57, 0.1),
body1: buildVariant(fontWeightRegular, 16, 1.5, 0.15),
body2: buildVariant(fontWeightRegular, 14, 1.43, 0.15),
button: buildVariant(fontWeightMedium, 14, 1.75, 0.4, caseAllCaps),
caption: buildVariant(fontWeightRegular, 12, 1.66, 0.4),
overline: buildVariant(fontWeightRegular, 12, 2.66, 1, caseAllCaps),
// TODO v6: Remove handling of 'inherit' variant from the theme as it is already handled in Material UI's Typography component. Also, remember to remove the associated types.
inherit: {
fontFamily: 'inherit',
fontWeight: 'inherit',
fontSize: 'inherit',
lineHeight: 'inherit',
letterSpacing: 'inherit'
}
};
return (0, _deepmerge.default)({
htmlFontSize,
pxToRem,
fontFamily,
fontSize,
fontWeightLight,
fontWeightRegular,
fontWeightMedium,
fontWeightBold,
...variants
}, other, {
clone: false // No need to clone deep
});
}