/**
* @license
* Copyright 2016 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
const validColor = require('../lib/web-inspector').Color.parse;
const Audit = require('./audit');
class ThemeColor extends Audit {
/**
* @return {!AuditMeta}
*/
static get meta() {
return {
category: 'HTML',
name: 'theme-color-meta',
description: 'HTML has a theme-color <meta>',
requiredArtifacts: ['ThemeColor']
};
}
/**
* @param {!Artifacts} artifacts
* @return {!AuditResult}
*/
static audit(artifacts) {
const themeColorMeta = artifacts.ThemeColor;
if (!themeColorMeta) {
return ThemeColor.generateAuditResult({
value: false,
debugString: 'No valid theme-color meta tag found.'
});
}
if (!validColor(themeColorMeta)) {
return ThemeColor.generateAuditResult({
value: false,
rawValue: themeColorMeta,
debugString: 'The theme-color meta tag did not contain a valid CSS color.'
});
}
return ThemeColor.generateAuditResult({
value: true,
rawValue: themeColorMeta
});
}
}
module.exports = ThemeColor;
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