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174 lines
3.8 KiB
174 lines
3.8 KiB
"use strict";
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var vendor = require('postcss').vendor;
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var Browsers = require('./browsers');
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var utils = require('./utils');
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/**
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* Recursively clone objects
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*/
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function _clone(obj, parent) {
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var cloned = new obj.constructor();
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for (var _i = 0, _Object$keys = Object.keys(obj || {}); _i < _Object$keys.length; _i++) {
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var i = _Object$keys[_i];
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var value = obj[i];
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if (i === 'parent' && typeof value === 'object') {
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if (parent) {
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cloned[i] = parent;
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}
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} else if (i === 'source' || i === null) {
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cloned[i] = value;
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} else if (Array.isArray(value)) {
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cloned[i] = value.map(function (x) {
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return _clone(x, cloned);
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});
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} else if (i !== '_autoprefixerPrefix' && i !== '_autoprefixerValues') {
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if (typeof value === 'object' && value !== null) {
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value = _clone(value, cloned);
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}
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cloned[i] = value;
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}
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}
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return cloned;
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}
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var Prefixer =
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/*#__PURE__*/
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function () {
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/**
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* Add hack to selected names
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*/
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Prefixer.hack = function hack(klass) {
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var _this = this;
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if (!this.hacks) {
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this.hacks = {};
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}
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return klass.names.map(function (name) {
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_this.hacks[name] = klass;
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return _this.hacks[name];
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});
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}
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/**
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* Load hacks for some names
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*/
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;
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Prefixer.load = function load(name, prefixes, all) {
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var Klass = this.hacks && this.hacks[name];
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if (Klass) {
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return new Klass(name, prefixes, all);
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} else {
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return new this(name, prefixes, all);
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}
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}
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/**
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* Clone node and clean autprefixer custom caches
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*/
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;
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Prefixer.clone = function clone(node, overrides) {
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var cloned = _clone(node);
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for (var name in overrides) {
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cloned[name] = overrides[name];
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}
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return cloned;
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};
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function Prefixer(name, prefixes, all) {
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this.prefixes = prefixes;
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this.name = name;
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this.all = all;
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}
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/**
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* Find prefix in node parents
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*/
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var _proto = Prefixer.prototype;
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_proto.parentPrefix = function parentPrefix(node) {
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var prefix;
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if (typeof node._autoprefixerPrefix !== 'undefined') {
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prefix = node._autoprefixerPrefix;
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} else if (node.type === 'decl' && node.prop[0] === '-') {
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prefix = vendor.prefix(node.prop);
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} else if (node.type === 'root') {
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prefix = false;
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} else if (node.type === 'rule' && node.selector.includes(':-') && /:(-\w+-)/.test(node.selector)) {
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prefix = node.selector.match(/:(-\w+-)/)[1];
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} else if (node.type === 'atrule' && node.name[0] === '-') {
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prefix = vendor.prefix(node.name);
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} else {
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prefix = this.parentPrefix(node.parent);
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}
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if (!Browsers.prefixes().includes(prefix)) {
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prefix = false;
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}
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node._autoprefixerPrefix = prefix;
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return node._autoprefixerPrefix;
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}
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/**
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* Clone node with prefixes
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*/
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;
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_proto.process = function process(node, result) {
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if (!this.check(node)) {
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return undefined;
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}
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var parent = this.parentPrefix(node);
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var prefixes = this.prefixes.filter(function (prefix) {
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return !parent || parent === utils.removeNote(prefix);
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});
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var added = [];
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for (var _iterator = prefixes, _isArray = Array.isArray(_iterator), _i2 = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
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var _ref;
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if (_isArray) {
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if (_i2 >= _iterator.length) break;
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_ref = _iterator[_i2++];
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} else {
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_i2 = _iterator.next();
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if (_i2.done) break;
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_ref = _i2.value;
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}
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var prefix = _ref;
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if (this.add(node, prefix, added.concat([prefix]), result)) {
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added.push(prefix);
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}
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}
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return added;
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}
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/**
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* Shortcut for Prefixer.clone
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*/
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;
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_proto.clone = function clone(node, overrides) {
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return Prefixer.clone(node, overrides);
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};
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return Prefixer;
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}();
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module.exports = Prefixer;
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