60 lines
1.8 KiB
JavaScript
60 lines
1.8 KiB
JavaScript
'use strict';
|
|
|
|
function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
|
|
|
|
var postcss = _interopDefault(require('postcss'));
|
|
|
|
function _toArray(arr) {
|
|
return _arrayWithHoles(arr) || _iterableToArray(arr) || _nonIterableRest();
|
|
}
|
|
|
|
function _arrayWithHoles(arr) {
|
|
if (Array.isArray(arr)) return arr;
|
|
}
|
|
|
|
function _iterableToArray(iter) {
|
|
if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
|
|
}
|
|
|
|
function _nonIterableRest() {
|
|
throw new TypeError("Invalid attempt to destructure non-iterable instance");
|
|
}
|
|
|
|
const space = postcss.list.space; // overflow shorthand property matcher
|
|
|
|
const overflowPropertyRegExp = /^overflow$/i;
|
|
var index = postcss.plugin('postcss-overflow-shorthand', opts => {
|
|
const preserve = 'preserve' in Object(opts) ? Boolean(opts.preserve) : true;
|
|
return root => {
|
|
// for each overflow declaration
|
|
root.walkDecls(overflowPropertyRegExp, decl => {
|
|
// split the declaration values
|
|
const _space = space(decl.value),
|
|
_space2 = _toArray(_space),
|
|
overflowX = _space2[0],
|
|
overflowY = _space2[1],
|
|
invalidatingValues = _space2.slice(2); // if there are two values, but no invalidating values
|
|
|
|
|
|
if (overflowY && !invalidatingValues.length) {
|
|
// insert the overflow-* longhand declarations
|
|
decl.cloneBefore({
|
|
prop: `${decl.prop}-x`,
|
|
value: overflowX
|
|
});
|
|
decl.cloneBefore({
|
|
prop: `${decl.prop}-y`,
|
|
value: overflowY
|
|
}); // conditionally remove the original declaration
|
|
|
|
if (!preserve) {
|
|
decl.remove();
|
|
}
|
|
}
|
|
});
|
|
};
|
|
});
|
|
|
|
module.exports = index;
|
|
//# sourceMappingURL=index.cjs.js.map
|