diff options
Diffstat (limited to 'node_modules/autoprefixer/lib/resolution.js')
| -rw-r--r-- | node_modules/autoprefixer/lib/resolution.js | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/node_modules/autoprefixer/lib/resolution.js b/node_modules/autoprefixer/lib/resolution.js new file mode 100644 index 00000000..dd6c35c3 --- /dev/null +++ b/node_modules/autoprefixer/lib/resolution.js @@ -0,0 +1,154 @@ +'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 Prefixer = require('./prefixer'); +var utils = require('./utils'); + +var n2f = require('num2fraction'); + +var regexp = /(min|max)-resolution\s*:\s*\d*\.?\d+(dppx|dpi)/gi; +var split = /(min|max)-resolution(\s*:\s*)(\d*\.?\d+)(dppx|dpi)/i; + +var Resolution = function (_Prefixer) { + _inherits(Resolution, _Prefixer); + + function Resolution() { + _classCallCheck(this, Resolution); + + return _possibleConstructorReturn(this, _Prefixer.apply(this, arguments)); + } + + /** + * Return prefixed query name + */ + Resolution.prototype.prefixName = function prefixName(prefix, name) { + var newName = prefix === '-moz-' ? name + '--moz-device-pixel-ratio' : prefix + name + '-device-pixel-ratio'; + return newName; + }; + + /** + * Return prefixed query + */ + + + Resolution.prototype.prefixQuery = function prefixQuery(prefix, name, colon, value, units) { + if (units === 'dpi') { + value = Number(value / 96); + } + if (prefix === '-o-') { + value = n2f(value); + } + return this.prefixName(prefix, name) + colon + value; + }; + + /** + * Remove prefixed queries + */ + + + Resolution.prototype.clean = function clean(rule) { + var _this2 = this; + + if (!this.bad) { + this.bad = []; + for (var _iterator = this.prefixes, _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 prefix = _ref; + + this.bad.push(this.prefixName(prefix, 'min')); + this.bad.push(this.prefixName(prefix, 'max')); + } + } + + rule.params = utils.editList(rule.params, function (queries) { + return queries.filter(function (query) { + return _this2.bad.every(function (i) { + return query.indexOf(i) === -1; + }); + }); + }); + }; + + /** + * Add prefixed queries + */ + + + Resolution.prototype.process = function process(rule) { + var _this3 = this; + + var parent = this.parentPrefix(rule); + var prefixes = parent ? [parent] : this.prefixes; + + rule.params = utils.editList(rule.params, function (origin, prefixed) { + for (var _iterator2 = origin, _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 query = _ref2; + + if (query.indexOf('min-resolution') === -1 && query.indexOf('max-resolution') === -1) { + prefixed.push(query); + continue; + } + + var _loop = function _loop(prefix) { + var processed = query.replace(regexp, function (str) { + var parts = str.match(split); + return _this3.prefixQuery(prefix, parts[1], parts[2], parts[3], parts[4]); + }); + prefixed.push(processed); + }; + + for (var _iterator3 = prefixes, _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 prefix = _ref3; + + _loop(prefix); + } + prefixed.push(query); + } + + return utils.uniq(prefixed); + }); + }; + + return Resolution; +}(Prefixer); + +module.exports = Resolution;
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