Viewer: add sw for ATHS

lighthouse-viewer/app/index.html

@@ -20,8 +20,8 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1">
   <title>Lighthouse Report Viewer</title>
+  <link rel="manifest" href="manifest.json">
   <link rel="shortcut icon" href="data:image/png;base64,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">
-  <link rel="manifest" href="images/manifest.json">
   <meta name="theme-color" content="#304ffe">
 
   <!-- build:css styles/main.css -->

lighthouse-viewer/app/images/manifest.json → lighthouse-viewer/app/manifest.json

@@ -3,17 +3,18 @@
   "short_name": "Lighthouse",
   "icons": [
     {
-      "src": "android-chrome-192x192.png",
+      "src": "images/android-chrome-192x192.png",
       "sizes": "192x192",
       "type": "image/png"
     },
     {
-      "src": "android-chrome-512x512.png",
+      "src": "images/android-chrome-512x512.png",
       "sizes": "512x512",
       "type": "image/png"
     }
   ],
   "theme_color": "#304ffe",
   "background_color": "#304ffe",
-  "display": "standalone"
+  "display": "standalone",
+  "start_url": "./"
 }

lighthouse-viewer/app/src/main.js

@@ -43,3 +43,7 @@ Promise.all(loadPolyfillPromises).then(_ => {
   // eslint-disable-next-line no-new
   new LighthouseViewerReport();
 });
+
+if ('serviceWorker' in navigator) {
+  navigator.serviceWorker.register('sw.js');
+}

lighthouse-viewer/app/sw.js

@@ -0,0 +1,18 @@
+/**
+ * @license
+ * Copyright 2017 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.
+ */
+
+// Intentionally empty for now.

lighthouse-viewer/gulpfile.js

@@ -38,7 +38,8 @@ function license() {
 gulp.task('lint', () => {
   return gulp.src([
     'app/src/**/*.js',
-    'gulpfile.js'
+    'gulpfile.js',
+    'sw.js'
   ])
   .pipe($.eslint())
   .pipe($.eslint.format())
@@ -65,7 +66,11 @@ gulp.task('concat-css', ['html', 'css'], () => {
 });
 
 gulp.task('html', () => {
-  return gulp.src('app/*.html').pipe(gulp.dest(DIST_FOLDER));
+  return gulp.src([
+    'app/*.html',
+    'app/sw.js',
+    'app/manifest.json'
+  ]).pipe(gulp.dest(DIST_FOLDER));
 });
 
 gulp.task('polyfills', () => {
@@ -124,7 +129,9 @@ gulp.task('watch', ['lint', 'browserify', 'polyfills', 'html', 'images', 'css'],
   });
 
   gulp.watch([
-    'app/index.html'
+    'app/index.html',
+    'app/manifest.json',
+    'app/sw.js'
   ]).on('change', () => {
     runSequence('html');
   });