65 lines
1.6 KiB
JavaScript
65 lines
1.6 KiB
JavaScript
'use strict';
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const declarationValueIndex = require('../../utils/declarationValueIndex');
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const findFontFamily = require('../../utils/findFontFamily');
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const keywordSets = require('../../reference/keywordSets');
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const report = require('../../utils/report');
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const ruleMessages = require('../../utils/ruleMessages');
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const validateOptions = require('../../utils/validateOptions');
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const ruleName = 'font-family-no-missing-generic-family-keyword';
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const messages = ruleMessages(ruleName, {
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rejected: 'Unexpected missing generic font family',
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});
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const isFamilyNameKeyword = (node) =>
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!node.quote && keywordSets.fontFamilyKeywords.has(node.value.toLowerCase());
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function rule(actual) {
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return (root, result) => {
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const validOptions = validateOptions(result, ruleName, { actual });
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if (!validOptions) {
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return;
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}
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root.walkDecls(/^font(-family)?$/i, (decl) => {
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// Ignore @font-face
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if (
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decl.parent &&
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decl.parent.type === 'atrule' &&
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decl.parent.name.toLowerCase() === 'font-face'
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) {
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return;
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}
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if (decl.prop === 'font' && keywordSets.systemFontValues.has(decl.value.toLowerCase())) {
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return;
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}
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const fontFamilies = findFontFamily(decl.value);
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if (fontFamilies.length === 0) {
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return;
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}
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if (fontFamilies.some(isFamilyNameKeyword)) {
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return;
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}
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report({
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result,
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ruleName,
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message: messages.rejected,
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node: decl,
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index: declarationValueIndex(decl) + fontFamilies[fontFamilies.length - 1].sourceIndex,
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});
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});
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};
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}
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rule.ruleName = ruleName;
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rule.messages = messages;
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module.exports = rule;
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