source: trip-planner-front/node_modules/postcss-double-position-gradients/index.cjs.js@ 1ad8e64

Last change on this file since 1ad8e64 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

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1'use strict';
2
3function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
4
5var postcss = _interopDefault(require('postcss'));
6var valueParser = _interopDefault(require('postcss-values-parser'));
7
8var index = postcss.plugin('postcss-double-position-gradients', opts => {
9 const preserve = 'preserve' in Object(opts) ? Boolean(opts.preserve) : true;
10 return root => {
11 // walk every declaration
12 root.walkDecls(decl => {
13 const originalValue = decl.value; // if the declaration value contains a gradient
14
15 if (gradientFunctionRegExp.test(originalValue)) {
16 const ast = valueParser(originalValue).parse(); // walk every function in the declaration value
17
18 ast.walkFunctionNodes(fn => {
19 // if the function is a gradient
20 if (gradientFunctionNameRegExp.test(fn.value)) {
21 const nodes = fn.nodes.slice(1, -1); // walk every argument to the function
22
23 nodes.forEach((node, index) => {
24 const node1back = Object(nodes[index - 1]);
25 const node2back = Object(nodes[index - 2]);
26 const isDoublePositionLength = node2back.type && node1back.type === 'number' && node.type === 'number'; // if the argument concludes a double-position gradient
27
28 if (isDoublePositionLength) {
29 // insert the fallback colors
30 const color = node2back.clone();
31 const comma = valueParser.comma({
32 value: ',',
33 raws: {
34 after: ' '
35 }
36 });
37 fn.insertBefore(node, comma);
38 fn.insertBefore(node, color);
39 }
40 });
41 }
42 });
43 const modifiedValue = ast.toString(); // if the value has changed due to double-position gradients
44
45 if (originalValue !== modifiedValue) {
46 // add the fallback value
47 decl.cloneBefore({
48 value: modifiedValue
49 }); // conditionally remove the double-position gradient
50
51 if (!preserve) {
52 decl.remove();
53 }
54 }
55 }
56 });
57 };
58});
59const gradientFunctionRegExp = /(repeating-)?(conic|linear|radial)-gradient\([\W\w]*\)/i;
60const gradientFunctionNameRegExp = /^(repeating-)?(conic|linear|radial)-gradient$/i;
61
62module.exports = index;
63//# sourceMappingURL=index.cjs.js.map
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