| "use strict"; |
| |
| Object.defineProperty(exports, "__esModule", { |
| value: true |
| }); |
| exports.default = void 0; |
| |
| var _postcssValueParser = _interopRequireWildcard(require("postcss-value-parser")); |
| |
| var _cssnanoUtils = require("cssnano-utils"); |
| |
| var _isColorStop = _interopRequireDefault(require("./isColorStop.js")); |
| |
| function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } |
| |
| function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); } |
| |
| function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; } |
| |
| const angles = { |
| top: '0deg', |
| right: '90deg', |
| bottom: '180deg', |
| left: '270deg' |
| }; |
| |
| function isLessThan(a, b) { |
| return a.unit.toLowerCase() === b.unit.toLowerCase() && parseFloat(a.number) >= parseFloat(b.number); |
| } |
| |
| function optimise(decl) { |
| const value = decl.value; |
| |
| if (!value) { |
| return; |
| } |
| |
| const normalizedValue = value.toLowerCase(); |
| |
| if (normalizedValue.includes('var(') || normalizedValue.includes('env(')) { |
| return; |
| } |
| |
| if (!normalizedValue.includes('gradient')) { |
| return; |
| } |
| |
| decl.value = (0, _postcssValueParser.default)(value).walk(node => { |
| if (node.type !== 'function' || !node.nodes.length) { |
| return false; |
| } |
| |
| const lowerCasedValue = node.value.toLowerCase(); |
| |
| if (lowerCasedValue === 'linear-gradient' || lowerCasedValue === 'repeating-linear-gradient' || lowerCasedValue === '-webkit-linear-gradient' || lowerCasedValue === '-webkit-repeating-linear-gradient') { |
| let args = (0, _cssnanoUtils.getArguments)(node); |
| |
| if (node.nodes[0].value.toLowerCase() === 'to' && args[0].length === 3) { |
| node.nodes = node.nodes.slice(2); |
| node.nodes[0].value = angles[node.nodes[0].value.toLowerCase()]; |
| } |
| |
| let lastStop = null; |
| args.forEach((arg, index) => { |
| if (arg.length !== 3) { |
| return; |
| } |
| |
| let isFinalStop = index === args.length - 1; |
| let thisStop = (0, _postcssValueParser.unit)(arg[2].value); |
| |
| if (lastStop === null) { |
| lastStop = thisStop; |
| |
| if (!isFinalStop && lastStop && lastStop.number === '0' && lastStop.unit.toLowerCase() !== 'deg') { |
| arg[1].value = arg[2].value = ''; |
| } |
| |
| return; |
| } |
| |
| if (lastStop && thisStop && isLessThan(lastStop, thisStop)) { |
| arg[2].value = 0; |
| } |
| |
| lastStop = thisStop; |
| |
| if (isFinalStop && arg[2].value === '100%') { |
| arg[1].value = arg[2].value = ''; |
| } |
| }); |
| return false; |
| } |
| |
| if (lowerCasedValue === 'radial-gradient' || lowerCasedValue === 'repeating-radial-gradient') { |
| let args = (0, _cssnanoUtils.getArguments)(node); |
| let lastStop; |
| const hasAt = args[0].find(n => n.value.toLowerCase() === 'at'); |
| args.forEach((arg, index) => { |
| if (!arg[2] || !index && hasAt) { |
| return; |
| } |
| |
| let thisStop = (0, _postcssValueParser.unit)(arg[2].value); |
| |
| if (!lastStop) { |
| lastStop = thisStop; |
| return; |
| } |
| |
| if (lastStop && thisStop && isLessThan(lastStop, thisStop)) { |
| arg[2].value = 0; |
| } |
| |
| lastStop = thisStop; |
| }); |
| return false; |
| } |
| |
| if (lowerCasedValue === '-webkit-radial-gradient' || lowerCasedValue === '-webkit-repeating-radial-gradient') { |
| let args = (0, _cssnanoUtils.getArguments)(node); |
| let lastStop; |
| args.forEach(arg => { |
| let color; |
| let stop; |
| |
| if (arg[2] !== undefined) { |
| if (arg[0].type === 'function') { |
| color = `${arg[0].value}(${(0, _postcssValueParser.stringify)(arg[0].nodes)})`; |
| } else { |
| color = arg[0].value; |
| } |
| |
| if (arg[2].type === 'function') { |
| stop = `${arg[2].value}(${(0, _postcssValueParser.stringify)(arg[2].nodes)})`; |
| } else { |
| stop = arg[2].value; |
| } |
| } else { |
| if (arg[0].type === 'function') { |
| color = `${arg[0].value}(${(0, _postcssValueParser.stringify)(arg[0].nodes)})`; |
| } |
| |
| color = arg[0].value; |
| } |
| |
| color = color.toLowerCase(); |
| const colorStop = stop || stop === 0 ? (0, _isColorStop.default)(color, stop.toLowerCase()) : (0, _isColorStop.default)(color); |
| |
| if (!colorStop || !arg[2]) { |
| return; |
| } |
| |
| let thisStop = (0, _postcssValueParser.unit)(arg[2].value); |
| |
| if (!lastStop) { |
| lastStop = thisStop; |
| return; |
| } |
| |
| if (lastStop && thisStop && isLessThan(lastStop, thisStop)) { |
| arg[2].value = 0; |
| } |
| |
| lastStop = thisStop; |
| }); |
| return false; |
| } |
| }).toString(); |
| } |
| |
| function pluginCreator() { |
| return { |
| postcssPlugin: 'postcss-minify-gradients', |
| |
| OnceExit(css) { |
| css.walkDecls(optimise); |
| } |
| |
| }; |
| } |
| |
| pluginCreator.postcss = true; |
| var _default = pluginCreator; |
| exports.default = _default; |
| module.exports = exports.default; |