/**
* @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 Audit = require('../audit');
class Viewport extends Audit {
/**
* @override
*/
static get meta() {
return {
category: 'Mobile Friendly',
name: 'viewport',
description: 'HTML has a viewport <meta>',
requiredArtifacts: ['viewport']
};
}
/**
* @param {!Artifacts} artifacts
* @return {!AuditResult}
*/
static audit(artifacts) {
const hasMobileViewport = typeof artifacts.viewport === 'string' &&
artifacts.viewport.includes('width=');
return Viewport.generateAuditResult({
value: !!hasMobileViewport
});
}
}
module.exports = Viewport;
|