You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.7 KiB
72 lines
2.7 KiB
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.default = void 0;
|
|
|
|
var _postcssSelectorParser = _interopRequireDefault(require("postcss-selector-parser"));
|
|
|
|
var _postcssValueParser = _interopRequireDefault(require("postcss-value-parser"));
|
|
|
|
var _parser = require("../parser");
|
|
|
|
var _reducer = _interopRequireDefault(require("./reducer"));
|
|
|
|
var _stringifier = _interopRequireDefault(require("./stringifier"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
|
// eslint-disable-next-line import/no-unresolved
|
|
var MATCH_CALC = /((?:-(moz|webkit)-)?calc)/i;
|
|
|
|
function transformValue(value, options, result, item) {
|
|
return (0, _postcssValueParser.default)(value).walk(function (node) {
|
|
// skip anything which isn't a calc() function
|
|
if (node.type !== 'function' || !MATCH_CALC.test(node.value)) return node; // stringify calc expression and produce an AST
|
|
|
|
var contents = _postcssValueParser.default.stringify(node.nodes);
|
|
|
|
var ast = _parser.parser.parse(contents); // reduce AST to its simplest form, that is, either to a single value
|
|
// or a simplified calc expression
|
|
|
|
|
|
var reducedAst = (0, _reducer.default)(ast, options.precision, item); // stringify AST and write it back
|
|
|
|
node.type = 'word';
|
|
node.value = (0, _stringifier.default)(node.value, reducedAst, value, options, result, item);
|
|
}, true).toString();
|
|
}
|
|
|
|
function transformSelector(value, options, result, item) {
|
|
return (0, _postcssSelectorParser.default)(function (selectors) {
|
|
selectors.walk(function (node) {
|
|
// attribute value
|
|
// e.g. the "calc(3*3)" part of "div[data-size="calc(3*3)"]"
|
|
if (node.type === 'attribute' && node.value) {
|
|
node.setValue(transformValue(node.value, options, result, item));
|
|
} // tag value
|
|
// e.g. the "calc(3*3)" part of "div:nth-child(2n + calc(3*3))"
|
|
|
|
|
|
if (node.type === 'tag') node.value = transformValue(node.value, options, result, item);
|
|
return;
|
|
});
|
|
}).processSync(value);
|
|
}
|
|
|
|
var _default = function _default(node, property, options, result) {
|
|
var value = property === "selector" ? transformSelector(node[property], options, result, node) : transformValue(node[property], options, result, node); // if the preserve option is enabled and the value has changed, write the
|
|
// transformed value into a cloned node which is inserted before the current
|
|
// node, preserving the original value. Otherwise, overwrite the original
|
|
// value.
|
|
|
|
if (options.preserve && node[property] !== value) {
|
|
var clone = node.clone();
|
|
clone[property] = value;
|
|
node.parent.insertBefore(node, clone);
|
|
} else node[property] = value;
|
|
};
|
|
|
|
exports.default = _default;
|
|
module.exports = exports.default;
|