aaac7fed
 liuqimichale
add
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'use strict';
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; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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; }
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); }
var flexSpec = require('./flex-spec');
var Declaration = require('../declaration');
var FlexDirection = function (_Declaration) {
_inherits(FlexDirection, _Declaration);
function FlexDirection() {
_classCallCheck(this, FlexDirection);
return _possibleConstructorReturn(this, _Declaration.apply(this, arguments));
}
/**
* Return property name by final spec
*/
FlexDirection.prototype.normalize = function normalize() {
return 'flex-direction';
};
/**
* Use two properties for 2009 spec
*/
FlexDirection.prototype.insert = function insert(decl, prefix, prefixes) {
var spec = void 0;
var _flexSpec = flexSpec(prefix);
spec = _flexSpec[0];
prefix = _flexSpec[1];
if (spec !== 2009) {
return _Declaration.prototype.insert.call(this, decl, prefix, prefixes);
} else {
var already = decl.parent.some(function (i) {
return i.prop === prefix + 'box-orient' || i.prop === prefix + 'box-direction';
});
if (already) {
return undefined;
}
var v = decl.value;
var orient = void 0,
dir = void 0;
if (v === 'inherit' || v === 'initial' || v === 'unset') {
orient = v;
dir = v;
} else {
orient = v.indexOf('row') !== -1 ? 'horizontal' : 'vertical';
dir = v.indexOf('reverse') !== -1 ? 'reverse' : 'normal';
}
var cloned = this.clone(decl);
cloned.prop = prefix + 'box-orient';
cloned.value = orient;
if (this.needCascade(decl)) {
cloned.raws.before = this.calcBefore(prefixes, decl, prefix);
}
decl.parent.insertBefore(decl, cloned);
cloned = this.clone(decl);
cloned.prop = prefix + 'box-direction';
cloned.value = dir;
if (this.needCascade(decl)) {
cloned.raws.before = this.calcBefore(prefixes, decl, prefix);
}
return decl.parent.insertBefore(decl, cloned);
}
};
/**
* Clean two properties for 2009 spec
*/
FlexDirection.prototype.old = function old(prop, prefix) {
var spec = void 0;
var _flexSpec2 = flexSpec(prefix);
spec = _flexSpec2[0];
prefix = _flexSpec2[1];
if (spec === 2009) {
return [prefix + 'box-orient', prefix + 'box-direction'];
} else {
return _Declaration.prototype.old.call(this, prop, prefix);
}
};
return FlexDirection;
}(Declaration);
Object.defineProperty(FlexDirection, 'names', {
enumerable: true,
writable: true,
value: ['flex-direction', 'box-direction', 'box-orient']
});
module.exports = FlexDirection;
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