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154 lines
5.6 KiB
154 lines
5.6 KiB
'use strict'; |
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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; } |
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } |
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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; } |
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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); } |
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var Prefixer = require('./prefixer'); |
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var utils = require('./utils'); |
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var n2f = require('num2fraction'); |
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var regexp = /(min|max)-resolution\s*:\s*\d*\.?\d+(dppx|dpi)/gi; |
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var split = /(min|max)-resolution(\s*:\s*)(\d*\.?\d+)(dppx|dpi)/i; |
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var Resolution = function (_Prefixer) { |
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_inherits(Resolution, _Prefixer); |
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function Resolution() { |
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_classCallCheck(this, Resolution); |
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return _possibleConstructorReturn(this, _Prefixer.apply(this, arguments)); |
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} |
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/** |
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* Return prefixed query name |
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*/ |
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Resolution.prototype.prefixName = function prefixName(prefix, name) { |
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var newName = prefix === '-moz-' ? name + '--moz-device-pixel-ratio' : prefix + name + '-device-pixel-ratio'; |
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return newName; |
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}; |
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/** |
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* Return prefixed query |
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*/ |
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Resolution.prototype.prefixQuery = function prefixQuery(prefix, name, colon, value, units) { |
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if (units === 'dpi') { |
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value = Number(value / 96); |
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} |
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if (prefix === '-o-') { |
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value = n2f(value); |
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} |
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return this.prefixName(prefix, name) + colon + value; |
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}; |
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/** |
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* Remove prefixed queries |
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*/ |
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Resolution.prototype.clean = function clean(rule) { |
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var _this2 = this; |
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if (!this.bad) { |
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this.bad = []; |
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for (var _iterator = this.prefixes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) { |
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var _ref; |
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if (_isArray) { |
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if (_i >= _iterator.length) break; |
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_ref = _iterator[_i++]; |
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} else { |
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_i = _iterator.next(); |
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if (_i.done) break; |
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_ref = _i.value; |
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} |
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var prefix = _ref; |
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this.bad.push(this.prefixName(prefix, 'min')); |
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this.bad.push(this.prefixName(prefix, 'max')); |
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} |
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} |
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rule.params = utils.editList(rule.params, function (queries) { |
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return queries.filter(function (query) { |
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return _this2.bad.every(function (i) { |
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return query.indexOf(i) === -1; |
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}); |
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}); |
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}); |
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}; |
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/** |
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* Add prefixed queries |
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*/ |
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Resolution.prototype.process = function process(rule) { |
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var _this3 = this; |
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var parent = this.parentPrefix(rule); |
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var prefixes = parent ? [parent] : this.prefixes; |
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rule.params = utils.editList(rule.params, function (origin, prefixed) { |
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for (var _iterator2 = origin, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) { |
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var _ref2; |
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if (_isArray2) { |
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if (_i2 >= _iterator2.length) break; |
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_ref2 = _iterator2[_i2++]; |
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} else { |
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_i2 = _iterator2.next(); |
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if (_i2.done) break; |
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_ref2 = _i2.value; |
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} |
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var query = _ref2; |
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if (query.indexOf('min-resolution') === -1 && query.indexOf('max-resolution') === -1) { |
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prefixed.push(query); |
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continue; |
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} |
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var _loop = function _loop(prefix) { |
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var processed = query.replace(regexp, function (str) { |
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var parts = str.match(split); |
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return _this3.prefixQuery(prefix, parts[1], parts[2], parts[3], parts[4]); |
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}); |
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prefixed.push(processed); |
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}; |
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for (var _iterator3 = prefixes, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) { |
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var _ref3; |
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if (_isArray3) { |
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if (_i3 >= _iterator3.length) break; |
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_ref3 = _iterator3[_i3++]; |
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} else { |
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_i3 = _iterator3.next(); |
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if (_i3.done) break; |
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_ref3 = _i3.value; |
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} |
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var prefix = _ref3; |
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_loop(prefix); |
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} |
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prefixed.push(query); |
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} |
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return utils.uniq(prefixed); |
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}); |
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}; |
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return Resolution; |
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}(Prefixer); |
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module.exports = Resolution; |