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112 lines
4.6 KiB
112 lines
4.6 KiB
4 years ago
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"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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const postcss = __importStar(require("postcss"));
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// postcss-selector-parser does have typings but it's problematic to work with.
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const selectorParser = require('postcss-selector-parser');
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exports.default = postcss.plugin('add-id', (options) => (root) => {
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const id = options;
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const keyframes = Object.create(null);
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root.each(function rewriteSelector(node) {
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if (!node.selector) {
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// handle media queries
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if (node.type === 'atrule') {
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if (node.name === 'media' || node.name === 'supports') {
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node.each(rewriteSelector);
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}
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else if (/-?keyframes$/.test(node.name)) {
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// register keyframes
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keyframes[node.params] = node.params = node.params + '-' + id;
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}
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}
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return;
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}
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node.selector = selectorParser((selectors) => {
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selectors.each((selector) => {
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let node = null;
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// find the last child node to insert attribute selector
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selector.each((n) => {
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// ">>>" combinator
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// and /deep/ alias for >>>, since >>> doesn't work in SASS
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if (n.type === 'combinator' &&
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(n.value === '>>>' || n.value === '/deep/')) {
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n.value = ' ';
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n.spaces.before = n.spaces.after = '';
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return false;
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}
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// in newer versions of sass, /deep/ support is also dropped, so add a ::v-deep alias
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if (n.type === 'pseudo' && n.value === '::v-deep') {
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n.value = n.spaces.before = n.spaces.after = '';
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return false;
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}
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if (n.type !== 'pseudo' && n.type !== 'combinator') {
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node = n;
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}
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});
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if (node) {
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node.spaces.after = '';
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}
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else {
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// For deep selectors & standalone pseudo selectors,
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// the attribute selectors are prepended rather than appended.
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// So all leading spaces must be eliminated to avoid problems.
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selector.first.spaces.before = '';
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}
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selector.insertAfter(node, selectorParser.attribute({
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attribute: id
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}));
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});
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}).processSync(node.selector);
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});
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// If keyframes are found in this <style>, find and rewrite animation names
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// in declarations.
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// Caveat: this only works for keyframes and animation rules in the same
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// <style> element.
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if (Object.keys(keyframes).length) {
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root.walkDecls(decl => {
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// individual animation-name declaration
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if (/^(-\w+-)?animation-name$/.test(decl.prop)) {
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decl.value = decl.value
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.split(',')
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.map(v => keyframes[v.trim()] || v.trim())
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.join(',');
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}
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// shorthand
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if (/^(-\w+-)?animation$/.test(decl.prop)) {
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decl.value = decl.value
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.split(',')
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.map(v => {
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const vals = v.trim().split(/\s+/);
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const i = vals.findIndex(val => keyframes[val]);
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if (i !== -1) {
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vals.splice(i, 1, keyframes[vals[i]]);
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return vals.join(' ');
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}
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else {
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return v;
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}
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})
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.join(',');
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}
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});
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}
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});
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