source: trip-planner-front/node_modules/postcss-normalize-positions/dist/index.js@ b738035

Last change on this file since b738035 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
10function _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); }
11
12function _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; }
13
14const directionKeywords = ['top', 'right', 'bottom', 'left', 'center'];
15const center = '50%';
16const horizontal = {
17 right: '100%',
18 left: '0'
19};
20const verticalValue = {
21 bottom: '100%',
22 top: '0'
23};
24
25function isCommaNode(node) {
26 return node.type === 'div' && node.value === ',';
27}
28
29function isVariableFunctionNode(node) {
30 if (node.type !== 'function') {
31 return false;
32 }
33
34 return ['var', 'env'].includes(node.value.toLowerCase());
35}
36
37function isMathFunctionNode(node) {
38 if (node.type !== 'function') {
39 return false;
40 }
41
42 return ['calc', 'min', 'max', 'clamp'].includes(node.value.toLowerCase());
43}
44
45function isNumberNode(node) {
46 if (node.type !== 'word') {
47 return false;
48 }
49
50 const value = parseFloat(node.value);
51 return !isNaN(value);
52}
53
54function isDimensionNode(node) {
55 if (node.type !== 'word') {
56 return false;
57 }
58
59 const parsed = (0, _postcssValueParser.unit)(node.value);
60
61 if (!parsed) {
62 return false;
63 }
64
65 return parsed.unit !== '';
66}
67
68function transform(value) {
69 const parsed = (0, _postcssValueParser.default)(value);
70 const ranges = [];
71 let rangeIndex = 0;
72 let shouldContinue = true;
73 parsed.nodes.forEach((node, index) => {
74 // After comma (`,`) follows next background
75 if (isCommaNode(node)) {
76 rangeIndex += 1;
77 shouldContinue = true;
78 return;
79 }
80
81 if (!shouldContinue) {
82 return;
83 } // After separator (`/`) follows `background-size` values
84 // Avoid them
85
86
87 if (node.type === 'div' && node.value === '/') {
88 shouldContinue = false;
89 return;
90 }
91
92 if (!ranges[rangeIndex]) {
93 ranges[rangeIndex] = {
94 start: null,
95 end: null
96 };
97 } // Do not try to be processed `var and `env` function inside background
98
99
100 if (isVariableFunctionNode(node)) {
101 shouldContinue = false;
102 ranges[rangeIndex].start = null;
103 ranges[rangeIndex].end = null;
104 return;
105 }
106
107 const isPositionKeyword = node.type === 'word' && directionKeywords.includes(node.value.toLowerCase()) || isDimensionNode(node) || isNumberNode(node) || isMathFunctionNode(node);
108
109 if (ranges[rangeIndex].start === null && isPositionKeyword) {
110 ranges[rangeIndex].start = index;
111 ranges[rangeIndex].end = index;
112 return;
113 }
114
115 if (ranges[rangeIndex].start !== null) {
116 if (node.type === 'space') {
117 return;
118 } else if (isPositionKeyword) {
119 ranges[rangeIndex].end = index;
120 return;
121 }
122
123 return;
124 }
125 });
126 ranges.forEach(range => {
127 if (range.start === null) {
128 return;
129 }
130
131 const nodes = parsed.nodes.slice(range.start, range.end + 1);
132
133 if (nodes.length > 3) {
134 return;
135 }
136
137 const firstNode = nodes[0].value.toLowerCase();
138 const secondNode = nodes[2] && nodes[2].value ? nodes[2].value.toLowerCase() : null;
139
140 if (nodes.length === 1 || secondNode === 'center') {
141 if (secondNode) {
142 nodes[2].value = nodes[1].value = '';
143 }
144
145 const map = Object.assign({}, horizontal, {
146 center
147 });
148
149 if (Object.prototype.hasOwnProperty.call(map, firstNode)) {
150 nodes[0].value = map[firstNode];
151 }
152
153 return;
154 }
155
156 if (firstNode === 'center' && directionKeywords.includes(secondNode)) {
157 nodes[0].value = nodes[1].value = '';
158
159 if (Object.prototype.hasOwnProperty.call(horizontal, secondNode)) {
160 nodes[2].value = horizontal[secondNode];
161 }
162
163 return;
164 }
165
166 if (Object.prototype.hasOwnProperty.call(horizontal, firstNode) && Object.prototype.hasOwnProperty.call(verticalValue, secondNode)) {
167 nodes[0].value = horizontal[firstNode];
168 nodes[2].value = verticalValue[secondNode];
169 return;
170 } else if (Object.prototype.hasOwnProperty.call(verticalValue, firstNode) && Object.prototype.hasOwnProperty.call(horizontal, secondNode)) {
171 nodes[0].value = horizontal[secondNode];
172 nodes[2].value = verticalValue[firstNode];
173 return;
174 }
175 });
176 return parsed.toString();
177}
178
179function pluginCreator() {
180 return {
181 postcssPlugin: 'postcss-normalize-positions',
182
183 OnceExit(css) {
184 const cache = {};
185 css.walkDecls(/^(background(-position)?|(-\w+-)?perspective-origin)$/i, decl => {
186 const value = decl.value;
187
188 if (!value) {
189 return;
190 }
191
192 if (cache[value]) {
193 decl.value = cache[value];
194 return;
195 }
196
197 const result = transform(value);
198 decl.value = result;
199 cache[value] = result;
200 });
201 }
202
203 };
204}
205
206pluginCreator.postcss = true;
207var _default = pluginCreator;
208exports.default = _default;
209module.exports = exports.default;
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