3 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; }
5 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
7 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; }
9 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); }
11 var flexSpec = require('./flex-spec');
12 var Declaration = require('../declaration');
14 var list = require('postcss').list;
16 var Flex = function (_Declaration) {
17 _inherits(Flex, _Declaration);
20 _classCallCheck(this, Flex);
22 return _possibleConstructorReturn(this, _Declaration.apply(this, arguments));
26 * Change property name for 2009 spec
28 Flex.prototype.prefixed = function prefixed(prop, prefix) {
31 var _flexSpec = flexSpec(prefix);
34 prefix = _flexSpec[1];
37 return prefix + 'box-flex';
39 return _Declaration.prototype.prefixed.call(this, prop, prefix);
44 * Return property name by final spec
48 Flex.prototype.normalize = function normalize() {
53 * Spec 2009 supports only first argument
54 * Spec 2012 disallows unitless basis
58 Flex.prototype.set = function set(decl, prefix) {
59 var spec = flexSpec(prefix)[0];
61 decl.value = list.space(decl.value)[0];
62 decl.value = Flex.oldValues[decl.value] || decl.value;
63 return _Declaration.prototype.set.call(this, decl, prefix);
64 } else if (spec === 2012) {
65 var components = list.space(decl.value);
66 if (components.length === 3 && components[2] === '0') {
67 decl.value = components.slice(0, 2).concat('0px').join(' ');
70 return _Declaration.prototype.set.call(this, decl, prefix);
76 Object.defineProperty(Flex, 'names', {
79 value: ['flex', 'box-flex']
81 Object.defineProperty(Flex, 'oldValues', {
91 module.exports = Flex;