Updated to 0.6.12

examples/js/quagga.js

@@ -8187,11 +8187,15 @@ define('camera_access',["html_utils"], function(HtmlUtils) {
      * @param {Object} failure Callback
      */
     function getUserMedia(constraints, success, failure) {
-        navigator.getUserMedia(constraints, function(stream) {
+        if (typeof navigator.getUserMedia !== 'undefined') {
+            navigator.getUserMedia(constraints, function (stream) {
                 streamRef = stream;
                 var videoSrc = (window.URL && window.URL.createObjectURL(stream)) || stream;
                 success.apply(null, [videoSrc]);
             }, failure);
+        } else {
+            failure(new TypeError("getUserMedia not available"));
+        }
     }
 
     function loadedData(video, callback) {
@@ -8230,7 +8234,7 @@ define('camera_access',["html_utils"], function(HtmlUtils) {
             video.addEventListener('loadeddata', loadedDataHandler, false);
             video.play();
         }, function(e) {
-            console.log(e);
+            callback(e);
         });
     }
 
@@ -8253,7 +8257,7 @@ define('camera_access',["html_utils"], function(HtmlUtils) {
                 facing: "environment"
             }, config);
 
-        if ( typeof MediaStreamTrack.getSources !== 'undefined') {
+        if ( typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') {
             MediaStreamTrack.getSources(function(sourceInfos) {
                 var videoSourceId;
                 for (var i = 0; i != sourceInfos.length; ++i) {
@@ -8473,7 +8477,7 @@ function(Code128Reader,
                 if (!err) {
                     _inputStream.trigger("canrecord");
                 } else {
-                    console.log(err);
+                    return cb(err);
                 }
             });
         }

examples/live_w_locator.js

@@ -1,7 +1,11 @@
 $(function() {
     var App = {
         init : function() {
-            Quagga.init(this.state, function() {
+            Quagga.init(this.state, function(err) {
+                if (err) {
+                    console.log(err);
+                    return;
+                }
                 App.attachListeners();
                 Quagga.start();
             });

index.md

@@ -7,7 +7,7 @@ showInMenu: true
 quaggaJS
 ========
 
-- [Changelog](#changelog) (2015-06-21)
+- [Changelog](#changelog) (2015-07-06)
 
 ## What is QuaggaJS?
 
@@ -86,12 +86,16 @@ version `quagga.min.js` and places both files in the `dist` folder.
 You can check out the [examples][github_examples] to get an idea of how to
 use QuaggaJS. Basically the library exposes the following API:
 
-### Quagga.init(config, callback)
+### <a name="quaggainit">Quagga.init(config, callback)</a>
 
 This method initializes the library for a given configuration `config` (see
-below) and invokes the `callback` when Quagga is ready to start. The
-initialization process also requests for camera access if real-time detection is
-configured.
+below) and invokes the `callback(err)` when Quagga has finished its
+bootstrapping phase. The initialization process also requests for camera
+access if real-time detection is configured. In case of an error, the `err`
+parameter is set and contains information about the cause. A potential cause
+may be the `inputStream.type` is set to `LiveStream`, but the browser does
+not support this API, or simply if the user denies the permission to use the
+camera.
 
 ```javascript
 Quagga.init({
@@ -102,7 +106,11 @@ Quagga.init({
     decoder : {
       readers : ["code_128_reader"]
     }
-  }, function() {
+  }, function(err) {
+      if (err) {
+          console.log(err);
+          return
+      }
       console.log("Initialization finished. Ready to start");
       Quagga.start();
   });
@@ -362,6 +370,11 @@ on the ``singleChannel`` flag in the configuration when using ``decodeSingle``.
 
 ## <a name="changelog">Changelog</a>
 
+### 2015-07-06
+- Improvements
+  - Added `err` parameter to [Quagga.init()](#quaggainit) callback
+  function
+
 ### 2015-06-21
 - Features
   - Added ``singleChannel`` configuration to ``inputStream`` (in [config]