380 lines
10 KiB
JavaScript
380 lines
10 KiB
JavaScript
'use strict';
|
|
|
|
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
var Browsers = require('./browsers');
|
|
var brackets = require('./brackets');
|
|
var Value = require('./value');
|
|
var utils = require('./utils');
|
|
|
|
var postcss = require('postcss');
|
|
|
|
var supported = [];
|
|
var data = require('caniuse-lite').feature(require('caniuse-lite/data/features/css-featurequeries.js'));
|
|
for (var browser in data.stats) {
|
|
var versions = data.stats[browser];
|
|
for (var version in versions) {
|
|
var support = versions[version];
|
|
if (/y/.test(support)) {
|
|
supported.push(browser + ' ' + version);
|
|
}
|
|
}
|
|
}
|
|
|
|
var Supports = function () {
|
|
function Supports(Prefixes, all) {
|
|
_classCallCheck(this, Supports);
|
|
|
|
this.Prefixes = Prefixes;
|
|
this.all = all;
|
|
}
|
|
|
|
/**
|
|
* Return prefixer only with @supports supported browsers
|
|
*/
|
|
|
|
|
|
Supports.prototype.prefixer = function prefixer() {
|
|
if (this.prefixerCache) {
|
|
return this.prefixerCache;
|
|
}
|
|
|
|
var filtered = this.all.browsers.selected.filter(function (i) {
|
|
return supported.indexOf(i) !== -1;
|
|
});
|
|
|
|
var browsers = new Browsers(this.all.browsers.data, filtered, this.all.options);
|
|
this.prefixerCache = new this.Prefixes(this.all.data, browsers, this.all.options);
|
|
return this.prefixerCache;
|
|
};
|
|
|
|
/**
|
|
* Parse string into declaration property and value
|
|
*/
|
|
|
|
|
|
Supports.prototype.parse = function parse(str) {
|
|
var _str$split = str.split(':'),
|
|
prop = _str$split[0],
|
|
value = _str$split[1];
|
|
|
|
if (!value) value = '';
|
|
return [prop.trim(), value.trim()];
|
|
};
|
|
|
|
/**
|
|
* Create virtual rule to process it by prefixer
|
|
*/
|
|
|
|
|
|
Supports.prototype.virtual = function virtual(str) {
|
|
var _parse = this.parse(str),
|
|
prop = _parse[0],
|
|
value = _parse[1];
|
|
|
|
var rule = postcss.parse('a{}').first;
|
|
rule.append({ prop: prop, value: value, raws: { before: '' } });
|
|
return rule;
|
|
};
|
|
|
|
/**
|
|
* Return array of Declaration with all necessary prefixes
|
|
*/
|
|
|
|
|
|
Supports.prototype.prefixed = function prefixed(str) {
|
|
var rule = this.virtual(str);
|
|
if (this.disabled(rule.first)) {
|
|
return rule.nodes;
|
|
}
|
|
|
|
var prefixer = this.prefixer().add[rule.first.prop];
|
|
prefixer && prefixer.process && prefixer.process(rule.first);
|
|
|
|
for (var _iterator = rule.nodes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
|
|
var _ref;
|
|
|
|
if (_isArray) {
|
|
if (_i >= _iterator.length) break;
|
|
_ref = _iterator[_i++];
|
|
} else {
|
|
_i = _iterator.next();
|
|
if (_i.done) break;
|
|
_ref = _i.value;
|
|
}
|
|
|
|
var decl = _ref;
|
|
|
|
for (var _iterator2 = this.prefixer().values('add', rule.first.prop), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
|
|
var _ref2;
|
|
|
|
if (_isArray2) {
|
|
if (_i2 >= _iterator2.length) break;
|
|
_ref2 = _iterator2[_i2++];
|
|
} else {
|
|
_i2 = _iterator2.next();
|
|
if (_i2.done) break;
|
|
_ref2 = _i2.value;
|
|
}
|
|
|
|
var value = _ref2;
|
|
|
|
value.process(decl);
|
|
}
|
|
Value.save(this.all, decl);
|
|
}
|
|
|
|
return rule.nodes;
|
|
};
|
|
|
|
/**
|
|
* Return true if brackets node is "not" word
|
|
*/
|
|
|
|
|
|
Supports.prototype.isNot = function isNot(node) {
|
|
return typeof node === 'string' && /not\s*/i.test(node);
|
|
};
|
|
|
|
/**
|
|
* Return true if brackets node is "or" word
|
|
*/
|
|
|
|
|
|
Supports.prototype.isOr = function isOr(node) {
|
|
return typeof node === 'string' && /\s*or\s*/i.test(node);
|
|
};
|
|
|
|
/**
|
|
* Return true if brackets node is (prop: value)
|
|
*/
|
|
|
|
|
|
Supports.prototype.isProp = function isProp(node) {
|
|
return (typeof node === 'undefined' ? 'undefined' : _typeof(node)) === 'object' && node.length === 1 && typeof node[0] === 'string';
|
|
};
|
|
|
|
/**
|
|
* Return true if prefixed property has no unprefixed
|
|
*/
|
|
|
|
|
|
Supports.prototype.isHack = function isHack(all, unprefixed) {
|
|
var check = new RegExp('(\\(|\\s)' + utils.escapeRegexp(unprefixed) + ':');
|
|
return !check.test(all);
|
|
};
|
|
|
|
/**
|
|
* Return true if we need to remove node
|
|
*/
|
|
|
|
|
|
Supports.prototype.toRemove = function toRemove(str, all) {
|
|
var _parse2 = this.parse(str),
|
|
prop = _parse2[0],
|
|
value = _parse2[1];
|
|
|
|
var unprefixed = this.all.unprefixed(prop);
|
|
|
|
var cleaner = this.all.cleaner();
|
|
|
|
if (cleaner.remove[prop] && cleaner.remove[prop].remove && !this.isHack(all, unprefixed)) {
|
|
return true;
|
|
}
|
|
|
|
for (var _iterator3 = cleaner.values('remove', unprefixed), _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
|
|
var _ref3;
|
|
|
|
if (_isArray3) {
|
|
if (_i3 >= _iterator3.length) break;
|
|
_ref3 = _iterator3[_i3++];
|
|
} else {
|
|
_i3 = _iterator3.next();
|
|
if (_i3.done) break;
|
|
_ref3 = _i3.value;
|
|
}
|
|
|
|
var checker = _ref3;
|
|
|
|
if (checker.check(value)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Remove all unnecessary prefixes
|
|
*/
|
|
|
|
|
|
Supports.prototype.remove = function remove(nodes, all) {
|
|
var i = 0;
|
|
while (i < nodes.length) {
|
|
if (!this.isNot(nodes[i - 1]) && this.isProp(nodes[i]) && this.isOr(nodes[i + 1])) {
|
|
if (this.toRemove(nodes[i][0], all)) {
|
|
nodes.splice(i, 2);
|
|
continue;
|
|
}
|
|
|
|
i += 2;
|
|
continue;
|
|
}
|
|
|
|
if (_typeof(nodes[i]) === 'object') {
|
|
nodes[i] = this.remove(nodes[i], all);
|
|
}
|
|
|
|
i += 1;
|
|
}
|
|
return nodes;
|
|
};
|
|
|
|
/**
|
|
* Clean brackets with one child
|
|
*/
|
|
|
|
|
|
Supports.prototype.cleanBrackets = function cleanBrackets(nodes) {
|
|
var _this = this;
|
|
|
|
return nodes.map(function (i) {
|
|
if ((typeof i === 'undefined' ? 'undefined' : _typeof(i)) !== 'object') {
|
|
return i;
|
|
}
|
|
|
|
if (i.length === 1 && _typeof(i[0]) === 'object') {
|
|
return _this.cleanBrackets(i[0]);
|
|
}
|
|
|
|
return _this.cleanBrackets(i);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Add " or " between properties and convert it to brackets format
|
|
*/
|
|
|
|
|
|
Supports.prototype.convert = function convert(progress) {
|
|
var result = [''];
|
|
for (var _iterator4 = progress, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
|
|
var _ref4;
|
|
|
|
if (_isArray4) {
|
|
if (_i4 >= _iterator4.length) break;
|
|
_ref4 = _iterator4[_i4++];
|
|
} else {
|
|
_i4 = _iterator4.next();
|
|
if (_i4.done) break;
|
|
_ref4 = _i4.value;
|
|
}
|
|
|
|
var i = _ref4;
|
|
|
|
result.push([i.prop + ': ' + i.value]);
|
|
result.push(' or ');
|
|
}
|
|
result[result.length - 1] = '';
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Compress value functions into a string nodes
|
|
*/
|
|
|
|
|
|
Supports.prototype.normalize = function normalize(nodes) {
|
|
var _this2 = this;
|
|
|
|
if ((typeof nodes === 'undefined' ? 'undefined' : _typeof(nodes)) !== 'object') {
|
|
return nodes;
|
|
}
|
|
|
|
nodes = nodes.filter(function (i) {
|
|
return i !== '';
|
|
});
|
|
if (typeof nodes[0] === 'string' && nodes[0].indexOf(':') !== -1) {
|
|
return [brackets.stringify(nodes)];
|
|
}
|
|
|
|
return nodes.map(function (i) {
|
|
return _this2.normalize(i);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Add prefixes
|
|
*/
|
|
|
|
|
|
Supports.prototype.add = function add(nodes, all) {
|
|
var _this3 = this;
|
|
|
|
return nodes.map(function (i) {
|
|
if (_this3.isProp(i)) {
|
|
var prefixed = _this3.prefixed(i[0]);
|
|
if (prefixed.length > 1) {
|
|
return _this3.convert(prefixed);
|
|
}
|
|
|
|
return i;
|
|
}
|
|
|
|
if ((typeof i === 'undefined' ? 'undefined' : _typeof(i)) === 'object') {
|
|
return _this3.add(i, all);
|
|
}
|
|
|
|
return i;
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Add prefixed declaration
|
|
*/
|
|
|
|
|
|
Supports.prototype.process = function process(rule) {
|
|
var ast = brackets.parse(rule.params);
|
|
ast = this.normalize(ast);
|
|
ast = this.remove(ast, rule.params);
|
|
ast = this.add(ast, rule.params);
|
|
ast = this.cleanBrackets(ast);
|
|
rule.params = brackets.stringify(ast);
|
|
};
|
|
|
|
/**
|
|
* Check global options
|
|
*/
|
|
|
|
|
|
Supports.prototype.disabled = function disabled(node) {
|
|
if (!this.all.options.grid) {
|
|
if (node.prop === 'display' && node.value.indexOf('grid') !== -1) {
|
|
return true;
|
|
}
|
|
if (node.prop.indexOf('grid') !== -1 || node.prop === 'justify-items') {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (this.all.options.flexbox === false) {
|
|
if (node.prop === 'display' && node.value.indexOf('flex') !== -1) {
|
|
return true;
|
|
}
|
|
var other = ['order', 'justify-content', 'align-items', 'align-content'];
|
|
if (node.prop.indexOf('flex') !== -1 || other.indexOf(node.prop) !== -1) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
return Supports;
|
|
}();
|
|
|
|
module.exports = Supports; |