1 |
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2 |
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3 | 'use strict';
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4 |
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5 | const declarationValueIndex = require('../../utils/declarationValueIndex');
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6 | const findFontFamily = require('../../utils/findFontFamily');
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7 | const isVariable = require('../../utils/isVariable');
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8 | const keywordSets = require('../../reference/keywordSets');
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9 | const optionsMatches = require('../../utils/optionsMatches');
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10 | const postcss = require('postcss');
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11 | const report = require('../../utils/report');
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12 | const ruleMessages = require('../../utils/ruleMessages');
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13 | const validateOptions = require('../../utils/validateOptions');
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14 |
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15 | const _ = require('lodash');
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16 |
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17 | const ruleName = 'font-family-no-missing-generic-family-keyword';
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18 |
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19 | const messages = ruleMessages(ruleName, {
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20 | rejected: 'Unexpected missing generic font family',
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21 | });
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22 |
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23 | const isFamilyNameKeyword = (node) =>
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24 | !node.quote && keywordSets.fontFamilyKeywords.has(node.value.toLowerCase());
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25 |
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26 | function rule(actual, options) {
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27 | return (root, result) => {
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28 | const validOptions = validateOptions(
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29 | result,
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30 | ruleName,
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31 | { actual },
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32 | {
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33 | actual: options,
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34 | possible: {
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35 | ignoreFontFamilies: [_.isString, _.isRegExp],
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36 | },
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37 | optional: true,
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38 | },
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39 | );
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40 |
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41 | if (!validOptions) {
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42 | return;
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43 | }
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44 |
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45 | root.walkDecls(/^font(-family)?$/i, (decl) => {
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46 |
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47 | if (
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48 | decl.parent &&
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49 | decl.parent.type === 'atrule' &&
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50 | decl.parent.name.toLowerCase() === 'font-face'
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51 | ) {
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52 | return;
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53 | }
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54 |
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55 | if (decl.prop === 'font' && keywordSets.systemFontValues.has(decl.value.toLowerCase())) {
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56 | return;
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57 | }
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58 |
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59 | const fontFamilies = findFontFamily(decl.value);
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60 |
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61 | if (fontFamilies.length === 0) {
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62 | return;
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63 | }
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64 |
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65 | if (fontFamilies.some(isFamilyNameKeyword)) {
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66 | return;
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67 | }
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68 |
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69 | if (postcss.list.space(decl.value).some(isVariable)) {
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70 | return;
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71 | }
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72 |
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73 | if (fontFamilies.some((node) => optionsMatches(options, 'ignoreFontFamilies', node.value))) {
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74 | return;
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75 | }
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76 |
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77 | report({
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78 | result,
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79 | ruleName,
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80 | message: messages.rejected,
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81 | node: decl,
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82 | index: declarationValueIndex(decl) + fontFamilies[fontFamilies.length - 1].sourceIndex,
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83 | });
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84 | });
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85 | };
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86 | }
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87 |
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88 | rule.ruleName = ruleName;
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89 | rule.messages = messages;
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90 | module.exports = rule;
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