| "use strict"; |
| |
| const _ = require("lodash"); |
| const atRuleParamIndex = require("../../utils/atRuleParamIndex"); |
| const matchesStringOrRegExp = require("../../utils/matchesStringOrRegExp"); |
| const mediaParser = require("postcss-media-query-parser").default; |
| const postcss = require("postcss"); |
| const report = require("../../utils/report"); |
| const ruleMessages = require("../../utils/ruleMessages"); |
| const validateOptions = require("../../utils/validateOptions"); |
| |
| const ruleName = "media-feature-name-value-whitelist"; |
| |
| const messages = ruleMessages(ruleName, { |
| rejected: (name, value) => `Unexpected value "${value}" for name "${name}"` |
| }); |
| |
| const rule = function(whitelist) { |
| return (root, result) => { |
| const validOptions = validateOptions(result, ruleName, { |
| actual: whitelist, |
| possible: [_.isObject] |
| }); |
| |
| if (!validOptions) { |
| return; |
| } |
| |
| root.walkAtRules(/^media$/i, atRule => { |
| mediaParser(atRule.params).walk(/^media-feature-expression$/i, node => { |
| // Ignore boolean and range context |
| if (node.value.indexOf(":") === -1) { |
| return; |
| } |
| |
| const mediaFeatureNode = _.find(node.nodes, { type: "media-feature" }); |
| const valueNode = _.find(node.nodes, { type: "value" }); |
| const mediaFeatureName = mediaFeatureNode.value; |
| const value = valueNode.value; |
| const unprefixedMediaFeatureName = postcss.vendor.unprefixed( |
| mediaFeatureName |
| ); |
| |
| const featureWhitelist = _.find(whitelist, (v, whitelistFeatureName) => |
| matchesStringOrRegExp( |
| unprefixedMediaFeatureName, |
| whitelistFeatureName |
| ) |
| ); |
| |
| if (featureWhitelist === undefined) { |
| return; |
| } |
| |
| if (matchesStringOrRegExp(value, featureWhitelist)) { |
| return; |
| } |
| |
| report({ |
| index: atRuleParamIndex(atRule) + valueNode.sourceIndex, |
| message: messages.rejected(mediaFeatureName, value), |
| node: atRule, |
| ruleName, |
| result |
| }); |
| }); |
| }); |
| }; |
| }; |
| |
| rule.ruleName = ruleName; |
| rule.messages = messages; |
| module.exports = rule; |