@atlaskit/primitives
Version:
Primitives are token-backed low-level building blocks.
89 lines (80 loc) • 3.49 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.xcss = xcss;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));
var _react = require("@emotion/react");
var _tokensMap = require("./tokens-map");
var _uniqueSymbol = require("./unique-symbol");
// eslint-disable-next-line @atlaskit/ui-styling-standard/use-compiled -- Ignored via go/DSP-18766
var isSafeEnvToThrow = function isSafeEnvToThrow() {
return (typeof process === "undefined" ? "undefined" : (0, _typeof2.default)(process)) === 'object' && (0, _typeof2.default)(process.env) === 'object' && process.env.NODE_ENV !== 'production';
};
var reNestedSelectors = /(\.|\s|&+|\*\>|#|\[.*\])/;
var safeSelectors = /^@media .*$|^::?.*$|^@supports .*$/;
var _transformStyles = function transformStyles(styleObj) {
if (!styleObj || (0, _typeof2.default)(styleObj) !== 'object') {
return styleObj;
}
// If styles are defined as a CSSObject[], recursively call on each element until we reach CSSObject
if (Array.isArray(styleObj)) {
return styleObj.map(_transformStyles);
}
// Modifies styleObj in place. Be careful.
Object.entries(styleObj).forEach(function (_ref) {
var _ref2 = (0, _slicedToArray2.default)(_ref, 2),
key = _ref2[0],
value = _ref2[1];
// If key is a pseudo class or a pseudo element, then value should be an object.
// So, call transformStyles on the value
if ((0, _typeof2.default)(value) === 'object' && safeSelectors.test(key)) {
styleObj[key] = _transformStyles(value);
return;
}
if (isSafeEnvToThrow()) {
// We don't support `.class`, `[data-testid]`, `> *`, `#some-id`
if (reNestedSelectors.test(key)) {
throw new Error("Styles not supported for key '".concat(key, "'."));
}
}
// We have now dealt with all the special cases, so,
// check whether what remains is a style property
// that can be transformed.
if (!(key in _tokensMap.tokensMap)) {
return;
}
var tokenValue = _tokensMap.tokensMap[key][value];
styleObj[key] = tokenValue !== null && tokenValue !== void 0 ? tokenValue : value;
});
return styleObj;
};
var baseXcss = function baseXcss(style) {
var transformedStyles = _transformStyles(style);
return (0, _defineProperty2.default)({}, _uniqueSymbol.uniqueSymbol, (0, _react.css)(transformedStyles));
};
// Media queries should not contain nested media queries
// Allow only a specific subset of chained selectors to maintain workable TypeScript performance
// Pseudos should not contain nested pseudos, or media queries
/**
* ### xcss
*
* `xcss` is a safer, tokens-first approach to CSS-in-JS. It allows token-backed values for
* CSS application.
*
* ```tsx
* const styles = xcss({
* padding: 'space.100'
* })
* ```
*
* @deprecated Use `@atlaskit/css` with `@atlaskit/primitives/compiled` instead.
* {@link https://hello.atlassian.net/wiki/spaces/DST/pages/4992259434/Guidance+Migrating+to+atlaskit+css+from+xcss Internal documentation for migration; no external access}
*/
// eslint-disable-next-line @atlaskit/volt-strict-mode/no-multiple-exports
function xcss(style) {
return baseXcss(style);
}