# all files / src/aggregators/launches-with-splash-screen/ index.js

100% Statements 17/17
100% Branches 0/0
100% Functions 4/4
100% Lines 17/17

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103

    1×
    1×
    1×
    1×
    1×
    1×

    1×

    1×

    1×

    1×

    1×

    1×

    1×

    1×

    1×

    1×

    1×
     /**
     * @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 Aggregate = require('../aggregate');
    const manifestExists = require('../../audits/manifest/exists');
    const manifestName = require('../../audits/manifest/name');
    const manifestBackgroundColor = require('../../audits/manifest/background-color');
    const manifestThemeColor = require('../../audits/manifest/theme-color');
    const manifestIconsMin192 = require('../../audits/manifest/icons-min-192');

    class SplashScreen extends Aggregate {

      /**
       * @override
       * @return {string}
       */
      static get name() {
        return 'Installed web app will launch with custom splash screen';
      }

      /**
       * @override
       * @return {string}
       */
      static get description() {
        return `A default splash screen will be constructed, but meeting these requirements guarantee a
                high-quality and customizable <a href="https://developers.google.com/web/updates/2015/10/splashscreen?hl=en">splash screen</a>
                the user sees between tapping the home screen icon and your app’s first paint.`;
      }

      /**
       * @override
       * @return {!AggregationType}
       */
      static get type() {
        return Aggregate.TYPES.PWA;
      }

      /**
       * An app that was installed to homescreen can get a custom splash screen
       * while launching.
       * Chrome needs the following:
       *   - has valid manifest
       *   - manifest has valid name
       *   - manifest has valid background_color
       *   - manifest has valid theme_color
       *   - icon of size >= 192x192 (technically minimum is 48dp and ideal/non-scaled is 128dp)
       *     - while optional, icons at 256, 384 and 512 will be used when appropriate
       * @see https://github.com/GoogleChrome/lighthouse/issues/24
       *
       * @override
       * @return {!AggregationCriteria}
       */
      static get criteria() {
        const criteria = {};

        criteria[manifestExists.meta.name] = {
          value: true,
          weight: 1
        };

        criteria[manifestName.meta.name] = {
          value: true,
          weight: 0
        };

        criteria[manifestBackgroundColor.meta.name] = {
          value: true,
          weight: 1
        };

        criteria[manifestThemeColor.meta.name] = {
          value: true,
          weight: 0
        };

        criteria[manifestIconsMin192.meta.name] = {
          value: true,
          weight: 1
        };

        return criteria;
      }
    }

    module.exports = SplashScreen;