@material-ui/core/styles/createTypography.js

React components that implement Google's Material Design.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = createTypography;

var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));

var _objectWithoutProperties2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutProperties"));

var _deepmerge = _interopRequireDefault(require("deepmerge"));

var _warning = _interopRequireDefault(require("warning"));

var _utils = require("@material-ui/utils");

// < 1kb payload overhead when lodash/merge is > 3kb.
function round(value) {
  return Math.round(value * 1e5) / 1e5;
}

var caseAllCaps = {
  textTransform: 'uppercase'
};
var defaultFontFamily = '"Roboto", "Helvetica", "Arial", sans-serif';
/**
 * @see @link{https://material.io/design/typography/the-type-system.html}
 * @see @link{https://material.io/design/typography/understanding-typography.html}
 */

function createTypography(palette, typography) {
  var _ref = typeof typography === 'function' ? typography(palette) : typography,
      _ref$fontFamily = _ref.fontFamily,
      fontFamily = _ref$fontFamily === void 0 ? defaultFontFamily : _ref$fontFamily,
      _ref$fontSize = _ref.fontSize,
      fontSize = _ref$fontSize === void 0 ? 14 : _ref$fontSize,
      _ref$fontWeightLight = _ref.fontWeightLight,
      fontWeightLight = _ref$fontWeightLight === void 0 ? 300 : _ref$fontWeightLight,
      _ref$fontWeightRegula = _ref.fontWeightRegular,
      fontWeightRegular = _ref$fontWeightRegula === void 0 ? 400 : _ref$fontWeightRegula,
      _ref$fontWeightMedium = _ref.fontWeightMedium,
      fontWeightMedium = _ref$fontWeightMedium === void 0 ? 500 : _ref$fontWeightMedium,
      _ref$htmlFontSize = _ref.htmlFontSize,
      htmlFontSize = _ref$htmlFontSize === void 0 ? 16 : _ref$htmlFontSize,
      _ref$useNextVariants = _ref.useNextVariants,
      useNextVariants = _ref$useNextVariants === void 0 ? Boolean(_utils.ponyfillGlobal.__MUI_USE_NEXT_TYPOGRAPHY_VARIANTS__) : _ref$useNextVariants,
      _ref$suppressWarning = _ref.suppressWarning,
      suppressWarning = _ref$suppressWarning === void 0 ? false : _ref$suppressWarning,
      allVariants = _ref.allVariants,
      other = (0, _objectWithoutProperties2.default)(_ref, ["fontFamily", "fontSize", "fontWeightLight", "fontWeightRegular", "fontWeightMedium", "htmlFontSize", "useNextVariants", "suppressWarning", "allVariants"]);

  process.env.NODE_ENV !== "production" ? (0, _warning.default)(useNextVariants || suppressWarning, 'Material-UI: you are using the deprecated typography variants ' + 'that will be removed in the next major release.' + '\nPlease read the migration guide under https://material-ui.com/style/typography#migration-to-typography-v2') : void 0;
  var coef = fontSize / 14;

  var pxToRem = function pxToRem(size) {
    return "".concat(size / htmlFontSize * coef, "rem");
  };

  var buildVariant = function buildVariant(fontWeight, size, lineHeight, letterSpacing, casing) {
    return (0, _extends2.default)({
      color: palette.text.primary,
      fontFamily: fontFamily,
      fontWeight: fontWeight,
      fontSize: pxToRem(size),
      // Unitless following http://meyerweb.com/eric/thoughts/2006/02/08/unitless-line-heights/
      lineHeight: lineHeight
    }, fontFamily === defaultFontFamily ? {
      letterSpacing: "".concat(round(letterSpacing / size), "em")
    } : {}, casing, allVariants);
  };

  var nextVariants = {
    h1: buildVariant(fontWeightLight, 96, 1, -1.5),
    h2: buildVariant(fontWeightLight, 60, 1, -0.5),
    h3: buildVariant(fontWeightRegular, 48, 1.04, 0),
    h4: buildVariant(fontWeightRegular, 34, 1.17, 0.25),
    h5: buildVariant(fontWeightRegular, 24, 1.33, 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),
    body1Next: buildVariant(fontWeightRegular, 16, 1.5, 0.15),
    body2Next: buildVariant(fontWeightRegular, 14, 1.5, 0.15),
    buttonNext: buildVariant(fontWeightMedium, 14, 1.5, 0.4, caseAllCaps),
    captionNext: buildVariant(fontWeightRegular, 12, 1.66, 0.4),
    overline: buildVariant(fontWeightRegular, 12, 2.66, 1, caseAllCaps)
  }; // To remove in v4

  var oldVariants = {
    display4: (0, _extends2.default)({
      fontSize: pxToRem(112),
      fontWeight: fontWeightLight,
      fontFamily: fontFamily,
      letterSpacing: '-.04em',
      lineHeight: "".concat(round(128 / 112), "em"),
      marginLeft: '-.04em',
      color: palette.text.secondary
    }, allVariants),
    display3: (0, _extends2.default)({
      fontSize: pxToRem(56),
      fontWeight: fontWeightRegular,
      fontFamily: fontFamily,
      letterSpacing: '-.02em',
      lineHeight: "".concat(round(73 / 56), "em"),
      marginLeft: '-.02em',
      color: palette.text.secondary
    }, allVariants),
    display2: (0, _extends2.default)({
      fontSize: pxToRem(45),
      fontWeight: fontWeightRegular,
      fontFamily: fontFamily,
      lineHeight: "".concat(round(51 / 45), "em"),
      marginLeft: '-.02em',
      color: palette.text.secondary
    }, allVariants),
    display1: (0, _extends2.default)({
      fontSize: pxToRem(34),
      fontWeight: fontWeightRegular,
      fontFamily: fontFamily,
      lineHeight: "".concat(round(41 / 34), "em"),
      color: palette.text.secondary
    }, allVariants),
    headline: (0, _extends2.default)({
      fontSize: pxToRem(24),
      fontWeight: fontWeightRegular,
      fontFamily: fontFamily,
      lineHeight: "".concat(round(32.5 / 24), "em"),
      color: palette.text.primary
    }, allVariants),
    title: (0, _extends2.default)({
      fontSize: pxToRem(21),
      fontWeight: fontWeightMedium,
      fontFamily: fontFamily,
      lineHeight: "".concat(round(24.5 / 21), "em"),
      color: palette.text.primary
    }, allVariants),
    subheading: (0, _extends2.default)({
      fontSize: pxToRem(16),
      fontWeight: fontWeightRegular,
      fontFamily: fontFamily,
      lineHeight: "".concat(round(24 / 16), "em"),
      color: palette.text.primary
    }, allVariants),
    body2: (0, _extends2.default)({
      fontSize: pxToRem(14),
      fontWeight: fontWeightMedium,
      fontFamily: fontFamily,
      lineHeight: "".concat(round(24 / 14), "em"),
      color: palette.text.primary
    }, allVariants),
    body1: (0, _extends2.default)({
      fontSize: pxToRem(14),
      fontWeight: fontWeightRegular,
      fontFamily: fontFamily,
      lineHeight: "".concat(round(20.5 / 14), "em"),
      color: palette.text.primary
    }, allVariants),
    caption: (0, _extends2.default)({
      fontSize: pxToRem(12),
      fontWeight: fontWeightRegular,
      fontFamily: fontFamily,
      lineHeight: "".concat(round(16.5 / 12), "em"),
      color: palette.text.secondary
    }, allVariants),
    button: (0, _extends2.default)({
      fontSize: pxToRem(14),
      textTransform: 'uppercase',
      fontWeight: fontWeightMedium,
      fontFamily: fontFamily,
      color: palette.text.primary
    }, allVariants)
  };
  return (0, _deepmerge.default)((0, _extends2.default)({
    pxToRem: pxToRem,
    round: round,
    fontFamily: fontFamily,
    fontSize: fontSize,
    fontWeightLight: fontWeightLight,
    fontWeightRegular: fontWeightRegular,
    fontWeightMedium: fontWeightMedium
  }, oldVariants, nextVariants, useNextVariants ? {
    body1: nextVariants.body1Next,
    body2: nextVariants.body2Next,
    button: nextVariants.buttonNext,
    caption: nextVariants.captionNext
  } : {}, {
    useNextVariants: useNextVariants
  }), other, {
    clone: false // No need to clone deep

  });
}