/**
* @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 ManifestDisplay extends Audit {
/**
* @return {!AuditMeta}
*/
static get meta() {
return {
category: 'Manifest',
name: 'manifest-display',
description: 'Manifest\'s display property set to standalone/fullscreen to ' +
'allow launching without address bar',
requiredArtifacts: ['Manifest']
};
}
/**
* @param {string|undefined} val
* @return {boolean}
*/
static hasRecommendedValue(val) {
return (val === 'fullscreen' || val === 'standalone');
}
/**
* @param {!Artifacts} artifacts
* @return {!AuditResult}
*/
static audit(artifacts) {
const manifest = artifacts.Manifest.value;
const displayValue = (!manifest || !manifest.display) ? undefined : manifest.display.value;
const hasRecommendedValue = ManifestDisplay.hasRecommendedValue(displayValue);
return ManifestDisplay.generateAuditResult({
value: hasRecommendedValue,
rawValue: displayValue,
debugString: 'Manifest display property should be standalone or fullscreen.'
});
}
}
module.exports = ManifestDisplay;
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