Build

gulpfile.js

@@ -1,44 +1,43 @@
-const gulp = require('gulp');
-const fs = require('fs');
-const del = require('del');
-const inlineStr = require('gulp-inline-str');
-const babel = require('gulp-babel');
-const uglify = require('gulp-uglify');
-const concat = require('gulp-concat');
+const gulp = require('gulp')
+const fs = require('fs')
+const del = require('del')
+const inlineStr = require('gulp-inline-str')
+const babel = require('gulp-babel')
+const uglify = require('gulp-uglify')
+const concat = require('gulp-concat')
 
-const babelOptions = JSON.parse(fs.readFileSync('./.babelrc', 'utf8'));
+const babelOptions = JSON.parse(fs.readFileSync('./.babelrc', 'utf8'))
 
 const paths = {
-  scripts: [ 'src/index.js', 'src/getDeviceId.js', 'src/havePropsChanged.js' ],
   scripts: [ 'src/index.js', 'src/getDeviceId.js', 'src/havePropsChanged.js', 'src/errors.js' ],
   worker: 'src/worker.js',
   jsQR: 'node_modules/jsqr/dist/jsQR.js',
   destination: './lib',
-};
+}
 
 gulp.task('clean', function() {
-  return del([ paths.destination + '/*.js' ]);
-});
+  return del([ paths.destination + '/*.js' ])
+})
 
 gulp.task('worker', [ 'clean' ], function() {
   return gulp
     .src([ paths.jsQR, paths.worker ])
     .pipe(concat('worker.js'))
-    .pipe(gulp.dest(paths.destination));
-});
+    .pipe(gulp.dest(paths.destination))
+})
 
 gulp.task('build', [ 'worker' ], function() {
   return gulp
     .src(paths.scripts)
     .pipe(inlineStr({ basePath: paths.destination }))
     .pipe(babel(babelOptions))
-    .pipe(gulp.dest(paths.destination));
-});
+    .pipe(gulp.dest(paths.destination))
+})
 
 // Rerun the task when a file changes
 gulp.task('watch', function() {
-  gulp.watch(paths.scripts, [ 'build' ]);
-});
+  gulp.watch(paths.scripts, [ 'build' ])
+})
 
 // The default task (called when you run `gulp` from cli)
-gulp.task('default', [ 'watch', 'build' ]);
+gulp.task('default', [ 'watch', 'build' ])

lib/errors.js

@@ -0,0 +1,11 @@
+'use strict';
+
+function NoVideoInputDevicesError() {
+  this.name = 'NoVideoInputDevicesError';
+  this.message = 'No video input devices found';
+}
+NoVideoInputDevicesError.prototype = new Error();
+
+module.exports = {
+  NoVideoInputDevicesError: NoVideoInputDevicesError
+};

lib/getDeviceId.js

@@ -1,16 +1,25 @@
 'use strict';
 
+var _require = require('./errors'),
+    NoVideoInputDevicesError = _require.NoVideoInputDevicesError;
+
 module.exports = function getDeviceId(facingMode) {
   // Get manual deviceId from available devices.
   return new Promise(function (resolve, reject) {
-    navigator.mediaDevices.enumerateDevices().then(function (devices) {
+    var enumerateDevices = void 0;
+    try {
+      enumerateDevices = navigator.mediaDevices.enumerateDevices();
+    } catch (err) {
+      reject(new NoVideoInputDevicesError());
+    }
+    enumerateDevices.then(function (devices) {
       // Filter out non-videoinputs
       var videoDevices = devices.filter(function (device) {
         return device.kind == 'videoinput';
       });
 
       if (videoDevices.length < 1) {
-        reject(new Error('No video input devices found'));
+        reject(new NoVideoInputDevicesError());
         return;
       } else if (videoDevices.length == 1) {
         // Only 1 video device available thus stop here

story.js

@@ -24,7 +24,7 @@ class Wrapper extends Component {
             )
         }
         {
-          selectDelay && (
+          (selectDelay || legacyMode) && (
               <div>
                 <button onClick={() => this.setState({ delay: false })}>
                   Disable Delay