forked from zhurui/management
70 lines
2.7 KiB
JavaScript
70 lines
2.7 KiB
JavaScript
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'use strict';
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function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
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function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass); }
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var Prefixer = require('./prefixer');
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var AtRule = function (_Prefixer) {
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_inherits(AtRule, _Prefixer);
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function AtRule() {
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_classCallCheck(this, AtRule);
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return _possibleConstructorReturn(this, _Prefixer.apply(this, arguments));
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}
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/**
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* Clone and add prefixes for at-rule
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*/
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AtRule.prototype.add = function add(rule, prefix) {
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var prefixed = prefix + rule.name;
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var already = rule.parent.some(function (i) {
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return i.name === prefixed && i.params === rule.params;
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});
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if (already) {
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return undefined;
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}
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var cloned = this.clone(rule, { name: prefixed });
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return rule.parent.insertBefore(rule, cloned);
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};
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/**
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* Clone node with prefixes
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*/
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AtRule.prototype.process = function process(node) {
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var parent = this.parentPrefix(node);
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for (var _iterator = this.prefixes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
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var _ref;
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if (_isArray) {
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if (_i >= _iterator.length) break;
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_ref = _iterator[_i++];
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} else {
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_i = _iterator.next();
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if (_i.done) break;
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_ref = _i.value;
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}
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var prefix = _ref;
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if (!parent || parent === prefix) {
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this.add(node, prefix);
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}
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}
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};
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return AtRule;
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}(Prefixer);
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module.exports = AtRule;
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