source: trip-planner-front/node_modules/postcss-minify-gradients/dist/index.js@ 59329aa

Last change on this file since 59329aa was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 5.8 KB
Line 
1"use strict";
2
3Object.defineProperty(exports, "__esModule", {
4 value: true
5});
6exports.default = void 0;
7
8var _postcssValueParser = _interopRequireWildcard(require("postcss-value-parser"));
9
10var _cssnanoUtils = require("cssnano-utils");
11
12var _isColorStop = _interopRequireDefault(require("./isColorStop.js"));
13
14function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
15
16function _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); }
17
18function _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; }
19
20const angles = {
21 top: '0deg',
22 right: '90deg',
23 bottom: '180deg',
24 left: '270deg'
25};
26
27function isLessThan(a, b) {
28 return a.unit.toLowerCase() === b.unit.toLowerCase() && parseFloat(a.number) >= parseFloat(b.number);
29}
30
31function optimise(decl) {
32 const value = decl.value;
33
34 if (!value) {
35 return;
36 }
37
38 const normalizedValue = value.toLowerCase();
39
40 if (normalizedValue.includes('var(') || normalizedValue.includes('env(')) {
41 return;
42 }
43
44 if (!normalizedValue.includes('gradient')) {
45 return;
46 }
47
48 decl.value = (0, _postcssValueParser.default)(value).walk(node => {
49 if (node.type !== 'function' || !node.nodes.length) {
50 return false;
51 }
52
53 const lowerCasedValue = node.value.toLowerCase();
54
55 if (lowerCasedValue === 'linear-gradient' || lowerCasedValue === 'repeating-linear-gradient' || lowerCasedValue === '-webkit-linear-gradient' || lowerCasedValue === '-webkit-repeating-linear-gradient') {
56 let args = (0, _cssnanoUtils.getArguments)(node);
57
58 if (node.nodes[0].value.toLowerCase() === 'to' && args[0].length === 3) {
59 node.nodes = node.nodes.slice(2);
60 node.nodes[0].value = angles[node.nodes[0].value.toLowerCase()];
61 }
62
63 let lastStop = null;
64 args.forEach((arg, index) => {
65 if (!arg[2]) {
66 return;
67 }
68
69 let isFinalStop = index === args.length - 1;
70 let thisStop = (0, _postcssValueParser.unit)(arg[2].value);
71
72 if (lastStop === null) {
73 lastStop = thisStop;
74
75 if (!isFinalStop && lastStop && lastStop.number === '0' && lastStop.unit.toLowerCase() !== 'deg') {
76 arg[1].value = arg[2].value = '';
77 }
78
79 return;
80 }
81
82 if (lastStop && thisStop && isLessThan(lastStop, thisStop)) {
83 arg[2].value = 0;
84 }
85
86 lastStop = thisStop;
87
88 if (isFinalStop && arg[2].value === '100%') {
89 arg[1].value = arg[2].value = '';
90 }
91 });
92 return false;
93 }
94
95 if (lowerCasedValue === 'radial-gradient' || lowerCasedValue === 'repeating-radial-gradient') {
96 let args = (0, _cssnanoUtils.getArguments)(node);
97 let lastStop;
98 const hasAt = args[0].find(n => n.value.toLowerCase() === 'at');
99 args.forEach((arg, index) => {
100 if (!arg[2] || !index && hasAt) {
101 return;
102 }
103
104 let thisStop = (0, _postcssValueParser.unit)(arg[2].value);
105
106 if (!lastStop) {
107 lastStop = thisStop;
108 return;
109 }
110
111 if (lastStop && thisStop && isLessThan(lastStop, thisStop)) {
112 arg[2].value = 0;
113 }
114
115 lastStop = thisStop;
116 });
117 return false;
118 }
119
120 if (lowerCasedValue === '-webkit-radial-gradient' || lowerCasedValue === '-webkit-repeating-radial-gradient') {
121 let args = (0, _cssnanoUtils.getArguments)(node);
122 let lastStop;
123 args.forEach(arg => {
124 let color;
125 let stop;
126
127 if (arg[2] !== undefined) {
128 if (arg[0].type === 'function') {
129 color = `${arg[0].value}(${(0, _postcssValueParser.stringify)(arg[0].nodes)})`;
130 } else {
131 color = arg[0].value;
132 }
133
134 if (arg[2].type === 'function') {
135 stop = `${arg[2].value}(${(0, _postcssValueParser.stringify)(arg[2].nodes)})`;
136 } else {
137 stop = arg[2].value;
138 }
139 } else {
140 if (arg[0].type === 'function') {
141 color = `${arg[0].value}(${(0, _postcssValueParser.stringify)(arg[0].nodes)})`;
142 }
143
144 color = arg[0].value;
145 }
146
147 color = color.toLowerCase();
148 const colorStop = stop || stop === 0 ? (0, _isColorStop.default)(color, stop.toLowerCase()) : (0, _isColorStop.default)(color);
149
150 if (!colorStop || !arg[2]) {
151 return;
152 }
153
154 let thisStop = (0, _postcssValueParser.unit)(arg[2].value);
155
156 if (!lastStop) {
157 lastStop = thisStop;
158 return;
159 }
160
161 if (lastStop && thisStop && isLessThan(lastStop, thisStop)) {
162 arg[2].value = 0;
163 }
164
165 lastStop = thisStop;
166 });
167 return false;
168 }
169 }).toString();
170}
171
172function pluginCreator() {
173 return {
174 postcssPlugin: 'postcss-minify-gradients',
175
176 OnceExit(css) {
177 css.walkDecls(optimise);
178 }
179
180 };
181}
182
183pluginCreator.postcss = true;
184var _default = pluginCreator;
185exports.default = _default;
186module.exports = exports.default;
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