+++ /dev/null
-'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;
\ No newline at end of file
projects / dotfiles / .git / blobdiff