scancss/dist/handlers/atrules/handleAtRule/index.js

A robust CSS stylesheet statistics collector and analyzer

'use strict';

Object.defineProperty(exports, "__esModule", {
	value: true
});
exports.handleAtRule = handleAtRule;

var _cssAtRules = require('../../../constants/cssAtRules');

var _rePrefixedString = require('../../../constants/rePrefixedString');

var _countUsage = require('../../../calculators/countUsage');

var _isAtRuleDeclaration = require('../../../predicates/isAtRuleDeclaration');

var _handleVendorPrefix = require('../../handleVendorPrefix');

var _handleImport = require('../handleImport');

var _handleKeyframes = require('../handleKeyframes');

var _handleMediaQueryParams = require('../handleMediaQueryParams');

var _handleSupports = require('../handleSupports');

var _handleAtRuleFunctions = require('../handleAtRuleFunctions');

var _handleAtRuleDescriptor = require('../handleAtRuleDescriptor');

/* eslint-disable-next-line complexity */
function handleAtRule(atRule, report, options) {
	report.atRules.total++;

	if (Array.isArray(atRule.nodes) && atRule.nodes.length === 0) {
		report.atRules.empty++;
	}

	const atRuleName = atRule.name.toLowerCase();

	(0, _countUsage.countUsage)(atRuleName, report.atRules.usage);

	/** Count vendor prefixes in at-rules names */
	if (_rePrefixedString.rePrefixedString.test(atRuleName)) {
		report.atRules.prefixed++;
		(0, _handleVendorPrefix.handleVendorPrefix)(atRuleName, report);
	}

	/** Count unknown at-rules */
	const unprefixedAtRuleName = atRuleName.replace(_rePrefixedString.rePrefixedString, '');
	if (_cssAtRules.cssAtRules.includes(unprefixedAtRuleName) === false) {
		report.atRules.unknown.total++;
		(0, _countUsage.countUsage)(atRuleName, report.atRules.unknown.usage);
	}

	if (atRuleName === 'import') {
		(0, _handleImport.handleImport)(atRule, report, options);
	}

	if (atRuleName === 'supports') {
		(0, _handleSupports.handleSupports)(atRule, report, options);
	}

	if (atRuleName === 'media') {
		(0, _handleMediaQueryParams.handleMediaQueryParams)(atRule.params, report, options);
	}

	if (unprefixedAtRuleName === 'keyframes') {
		(0, _handleKeyframes.handleKeyframes)(atRule, report);
	}

	if (options.functions) {
		if (unprefixedAtRuleName === 'document' || unprefixedAtRuleName === 'import' || unprefixedAtRuleName === 'namespace') {
			(0, _handleAtRuleFunctions.handleAtRuleFunctions)(atRule.params, report);
		}

		if (unprefixedAtRuleName === 'font-face') {
			atRule.walkDecls(decl => {
				(0, _handleAtRuleFunctions.handleAtRuleFunctions)(decl.value, report);
			});
		}
	}

	if (options.declarations) {
		atRule.walkDecls(decl => {
			if ((0, _isAtRuleDeclaration.isAtRuleDeclaration)(unprefixedAtRuleName, decl) === false) {
				(0, _handleAtRuleDescriptor.handleAtRuleDescriptor)(decl, report);
				return;
			}

			(0, _countUsage.countUsage)(atRuleName, report.declarations.inAtRules);
		});
	}
}