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