| "use strict"; |
| |
| const _ = require("lodash"); |
| const atRuleParamIndex = require("../../utils/atRuleParamIndex"); |
| const isCustomSelector = require("../../utils/isCustomSelector"); |
| const isStandardSyntaxAtRule = require("../../utils/isStandardSyntaxAtRule"); |
| const isStandardSyntaxRule = require("../../utils/isStandardSyntaxRule"); |
| const isStandardSyntaxSelector = require("../../utils/isStandardSyntaxSelector"); |
| const keywordSets = require("../../reference/keywordSets"); |
| const optionsMatches = require("../../utils/optionsMatches"); |
| const parseSelector = require("../../utils/parseSelector"); |
| const postcss = require("postcss"); |
| const report = require("../../utils/report"); |
| const ruleMessages = require("../../utils/ruleMessages"); |
| const validateOptions = require("../../utils/validateOptions"); |
| |
| const ruleName = "selector-pseudo-class-no-unknown"; |
| |
| const messages = ruleMessages(ruleName, { |
| rejected: selector => `Unexpected unknown pseudo-class selector "${selector}"` |
| }); |
| |
| const rule = function(actual, options) { |
| return (root, result) => { |
| const validOptions = validateOptions( |
| result, |
| ruleName, |
| { actual }, |
| { |
| actual: options, |
| possible: { |
| ignorePseudoClasses: [_.isString] |
| }, |
| optional: true |
| } |
| ); |
| |
| if (!validOptions) { |
| return; |
| } |
| |
| function check(selector, result, node) { |
| parseSelector(selector, result, node, selectorTree => { |
| selectorTree.walkPseudos(pseudoNode => { |
| const value = pseudoNode.value; |
| |
| if (!isStandardSyntaxSelector(value)) { |
| return; |
| } |
| |
| if (isCustomSelector(value)) { |
| return; |
| } |
| |
| // Ignore pseudo-elements |
| if (value.slice(0, 2) === "::") { |
| return; |
| } |
| |
| if ( |
| optionsMatches( |
| options, |
| "ignorePseudoClasses", |
| pseudoNode.value.slice(1) |
| ) |
| ) { |
| return; |
| } |
| |
| let index = null; |
| const name = value.slice(1).toLowerCase(); |
| |
| if (node.type === "atrule" && node.name === "page") { |
| if (keywordSets.atRulePagePseudoClasses.has(name)) { |
| return; |
| } |
| |
| index = atRuleParamIndex(node) + pseudoNode.sourceIndex; |
| } else { |
| if ( |
| postcss.vendor.prefix(name) || |
| keywordSets.pseudoClasses.has(name) || |
| keywordSets.pseudoElements.has(name) |
| ) { |
| return; |
| } |
| |
| let prevPseudoElement = pseudoNode; |
| |
| do { |
| prevPseudoElement = prevPseudoElement.prev(); |
| |
| if ( |
| prevPseudoElement && |
| prevPseudoElement.value.slice(0, 2) === "::" |
| ) { |
| break; |
| } |
| } while (prevPseudoElement); |
| |
| if (prevPseudoElement) { |
| const prevPseudoElementValue = postcss.vendor.unprefixed( |
| prevPseudoElement.value.toLowerCase().slice(2) |
| ); |
| |
| if ( |
| keywordSets.webkitProprietaryPseudoElements.has( |
| prevPseudoElementValue |
| ) && |
| keywordSets.webkitProprietaryPseudoClasses.has(name) |
| ) { |
| return; |
| } |
| } |
| |
| index = pseudoNode.sourceIndex; |
| } |
| |
| report({ |
| message: messages.rejected(value), |
| node, |
| index, |
| ruleName, |
| result |
| }); |
| }); |
| }); |
| } |
| |
| root.walk(node => { |
| let selector = null; |
| |
| if (node.type === "rule") { |
| if (!isStandardSyntaxRule(node)) { |
| return; |
| } |
| |
| selector = node.selector; |
| } else if ( |
| node.type === "atrule" && |
| node.name === "page" && |
| node.params |
| ) { |
| if (!isStandardSyntaxAtRule(node)) { |
| return; |
| } |
| |
| selector = node.params; |
| } |
| |
| // Return if selector empty, it is meaning node type is not a rule or a at-rule |
| |
| if (!selector) { |
| return; |
| } |
| |
| // Return early before parse if no pseudos for performance |
| |
| if (selector.indexOf(":") === -1) { |
| return; |
| } |
| |
| check(selector, result, node); |
| }); |
| }; |
| }; |
| |
| rule.ruleName = ruleName; |
| rule.messages = messages; |
| module.exports = rule; |