update version

Reproduced in 3.1, see #60

README.md

@@ -1,12 +1,15 @@
 BarcodeScanner
 ==============
 
+Added version that runs with windows mobile devices.
+To run on those devices, the zxing.net library must be added to the project (Install as nuget packet - more information on http://www.nuget.org/packages/ZXing.Net)
+
+Windows Phone currently only supports Scaning for codes, feel free to extend it that it can also encode.
+
 Cross-platform BarcodeScanner for Cordova / PhoneGap.
 
 Follows the [Cordova Plugin spec](https://github.com/apache/cordova-plugman/blob/master/plugin_spec.md), so that it works with [Plugman](https://github.com/apache/cordova-plugman).
 
-This plugin leverages Cordova/PhoneGap's [require/define functionality used for plugins](http://simonmacdonald.blogspot.ca/2012/08/so-you-wanna-write-phonegap-200-android.html). 
-
 Note: the Android source for this project includes an Android Library Project.
 plugman currently doesn't support Library Project refs, so its been
 prebuilt as a jar library. Any updates to the Library Project should be
@@ -49,9 +52,7 @@ The following barcode types are currently supported:
 
 A full example could be:
 ```
-   var scanner = cordova.require("cordova/plugin/BarcodeScanner");
+   cordova.plugins.barcodeScanner.scan(
-
-   scanner.scan(
       function (result) {
           alert("We got a barcode\n" +
                 "Result: " + result.text + "\n" +
@@ -65,7 +66,7 @@ A full example could be:
 ```
 
 ## Encoding a Barcode ##
-The plugin creates the object `window.plugins.barcodeScanner` with the method `encode(type, data, success, fail)`. 
+The plugin creates the object `cordova.plugins.barcodeScanner` with the method `encode(type, data, success, fail)`. 
 Supported encoding types:
 
 * TEXT_TYPE
@@ -76,9 +77,7 @@ Supported encoding types:
 ```
 A full example could be:
 
-   var scanner = cordova.require("cordova/plugin/BarcodeScanner");
+   cordova.plugins.barcodeScanner.encode(BarcodeScanner.Encode.TEXT_TYPE, "http://www.nytimes.com", function(success) {
-
-   scanner.encode(BarcodeScanner.Encode.TEXT_TYPE, "http://www.nytimes.com", function(success) {
   	        alert("encode success: " + success);
   	      }, function(fail) {
   	        alert("encoding failed: " + fail);

plugin.xml

@@ -1,19 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?><plugin xmlns="http://www.phonegap.com/ns/plugins/1.0"
     xmlns:android="http://schemas.android.com/apk/res/android"
     id="com.phonegap.plugins.barcodescanner"
-    version="0.7.2">
+    version="1.2.0">
 
     <name>BarcodeScanner</name>
-    
     <description>Scans Barcodes.</description>
+    <license>MIT</license>
 
     <engines>
-        <engine name="cordova" version=">=2.8.0" />
+        <engine name="cordova" version=">=3.0.0" />
     </engines>    
 
+    <js-module src="www/barcodescanner.js" name="BarcodeScanner">
+        <clobbers target="cordova.plugins.barcodeScanner" />
+    </js-module>
+
     <asset src="www/barcodescanner.js" target="barcodescanner.js" />
-    
-    <license>MIT</license>
 
     <!-- ios -->
     <platform name="ios">
@@ -35,7 +37,34 @@
         <framework src="AVFoundation.framework" />
         <framework src="AssetsLibrary.framework" />
         <framework src="CoreVideo.framework" />
+        <framework src="QuartzCore.framework" />
     </platform>
+	
+	<platform name="wp7">
+		<config-file target="config.xml" parent="/*">
+            <feature name="BarcodeScanner">
+                <param name="wp-package" value="BarcodeScanner"/>
+            </feature>
+        </config-file>
+		
+		<source-file src="src/wp/BarcodeScanner.cs" />	
+		<source-file src="src/wp/BarcodeScannerResult.cs" />	
+		<source-file src="src/wp/Scan.xaml.cs" />	
+		<source-file src="src/wp/Scan.xaml" />	
+	</platform>
+	
+	<platform name="wp8">
+		<config-file target="config.xml" parent="/*">
+            <feature name="BarcodeScanner">
+                <param name="wp-package" value="BarcodeScanner"/>
+            </feature>
+        </config-file>
+		
+		<source-file src="src/wp/BarcodeScanner.cs" />	
+		<source-file src="src/wp/BarcodeScannerResult.cs" />	
+		<source-file src="src/wp/Scan.xaml.cs" />	
+		<source-file src="src/wp/Scan.xaml" />	
+	</platform>
 
     <!-- android -->
     <platform name="android">

plugin.xml.generate.php

@@ -1,216 +0,0 @@
-<?php
-	class PluginHelper {
-		public $basePath = 'src/android/LibraryProject/';
-		
-		private function perror($msg)
-		{
-			file_put_contents('php://stderr', $msg, FILE_APPEND);
-		}
-
-		/**
-		 * Get contents of an XML file.
-		 *
-		 * @param string $xmlFilePath The XML file path relative to $this->basePath.
-		 * @param string $parent Parent element from which to get children.
-		 * @param array $options
-		 *	<li>ident - ident chanracters.
-		 *	<li>ignorePattern - pattern that will be matched to XML.
-		 * @return string
-		 */
-		public function getXml($xmlFilePath, $parent, $options=array())
-		{
-			if (!isset($options['indent']))
-			{
-				$options['indent'] = "";
-			}
-			
-			$contents = "";
-			$filePath = $this->basePath . $xmlFilePath;
-			if (!file_exists($filePath))
-			{
-				$this->perror("File $filePath does not exist");
-				return $contents;
-			}
-			
-			$xml = file_get_contents($this->basePath . $xmlFilePath);
-			$document = new SimpleXMLElement($xml);
-			$els = $document->xpath($parent);
-			if (!empty($els))
-			{
-				$rootNode = $els[0];
-				foreach ($rootNode->children() as $child)
-				{
-					$childContent = $child->asXML();
-					if (isset($options['ignorePattern']) && preg_match($options['ignorePattern'], $childContent))
-					{
-						$this->perror("\nignored $childContent");
-						continue;
-					}
-					$contents .= "\n" . $options['indent'] . $childContent;
-				}
-				$contents = ltrim ($contents) . "\n";
-				return $contents;
-			}
-			else
-			{
-				$this->perror("Path $parent not found in $xmlFilePath");
-				return $contents;
-			}
-		}
-
-		/**
-		 * Generate source-file tags to copy all resources from given dir.
-		 * 
-		 * @param type $dir Dir path relative to $this->basePath.
-		 * @param array $options
-		 *	<li>ident - ident chanracters.
-		 */
-		public function sourceFiles($dir, $options=array())
-		{
-			//ob_end_clean();
-			
-			if (!isset($options['indent']))
-			{
-				$options['indent'] = "";
-			}
-			$path = $this->basePath . $dir;
-			
-			$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path));
-			while($it->valid())
-			{
-				if (!$it->isDot())
-				{
-					$filename = strtr($it->key(), '\\', '/');
-					if (isset($options['ignorePattern']) && preg_match($options['ignorePattern'], $filename))
-					{
-						$this->perror("\nignored $filename");
-						$it->next();
-						continue;
-					}
-					
-					$targetDir = preg_replace('#.+LibraryProject/(.+?)/[^/]+$#', '$1',  $filename);
-					echo "\n{$options['indent']}<source-file src=\"$filename\" target-dir=\"$targetDir\"/>";
-				}
-				$it->next();
-			}
-			
-			echo "\n";
-			//exit;
-		}
-	}
-
-	// init
-	$pluginHelper = new PluginHelper();
-
-	ob_start();
-	echo '<?xml version="1.0" encoding="UTF-8"?>';
-?>
-<plugin xmlns="http://www.phonegap.com/ns/plugins/1.0"
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    id="com.phonegap.plugins.barcodescanner"
-    version="0.5.3">
-
-    <name>BarcodeScanner</name>
-    
-    <description>Scans Barcodes.</description>
-
-    <engines>
-        <engine name="cordova" version=">=2.0.0" />
-    </engines>    
-
-    <asset src="www/barcodescanner.js" target="barcodescanner.js" />
-
-    <!-- ios -->
-    <platform name="ios">
-		<plugins-plist key="BarcodeScanner" string="CDVBarcodeScanner" />
-		
-        <!-- Cordova >= 2.3 -->
-        <config-file target="config.xml" parent="plugins">
-            <plugin name="BarcodeScanner" value="CDVBarcodeScanner"/>
-        </config-file>
-
-		<resource-file src="src/ios/scannerOverlay.xib" />
-
-        <header-file src="src/ios/zxing-all-in-one.h" />
-
-        <source-file src="src/ios/CDVBarcodeScanner.mm"  />
-        <source-file src="src/ios/zxing-all-in-one.cpp" />
-
-        <framework src="libiconv.dylib" />
-        <framework src="AVFoundation.framework" />
-        <framework src="AssetsLibrary.framework" />
-        <framework src="CoreVideo.framework" />
-    </platform>
-
-    <!-- android -->
-    <platform name="android">
-
-        <source-file src="src/android/com/phonegap/plugins/barcodescanner/BarcodeScanner.java" target-dir="src/com/phonegap/plugins/barcodescanner" />
-        <!--
-        <source-file src="R.java" target-dir="src/com/google/zxing/client/android" />
-        -->
-		
-        <config-file target="res/xml/plugins.xml" parent="/plugins">
-            <plugin name="BarcodeScanner" value="com.phonegap.plugins.barcodescanner.BarcodeScanner"/>
-        </config-file>
-
-        <config-file target="res/xml/config.xml" parent="plugins">
-            <plugin name="BarcodeScanner" value="com.phonegap.plugins.barcodescanner.BarcodeScanner"/>
-        </config-file>
-
-        <config-file target="AndroidManifest.xml" parent="/manifest/application">
-			<activity
-				android:name="com.google.zxing.client.android.CaptureActivity"
-				android:screenOrientation="landscape"
-				android:clearTaskOnLaunch="true"
-				android:configChanges="orientation|keyboardHidden"
-				android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
-				android:windowSoftInputMode="stateAlwaysHidden"
-				android:exported="false">
-				<intent-filter>
-					<action android:name="com.phonegap.plugins.barcodescanner.SCAN"/>
-					<category android:name="android.intent.category.DEFAULT"/>
-				</intent-filter>
-			</activity>
-			<activity android:name="com.google.zxing.client.android.encode.EncodeActivity" android:label="@string/share_name">
-				<intent-filter>
-					<action android:name="com.phonegap.plugins.barcodescanner.ENCODE"/>
-					<category android:name="android.intent.category.DEFAULT"/>
-				</intent-filter>
-			</activity>
-			<activity android:name="com.google.zxing.client.android.HelpActivity" android:label="@string/share_name">
-				<intent-filter>
-					<action android:name="android.intent.action.VIEW"/>
-					<category android:name="android.intent.category.DEFAULT"/>
-				</intent-filter>
-			</activity>
-        </config-file>
-
-        <config-file target="AndroidManifest.xml" parent="/manifest">
-			<uses-permission android:name="android.permission.CAMERA" />
-			<uses-permission android:name="android.permission.FLASHLIGHT" />
-			<!-- Not required to allow users to work around this -->
-            <uses-feature android:name="android.hardware.camera" android:required="false" />
-        </config-file>
-
-        <source-file src="src/android/com.google.zxing.client.android.captureactivity.jar" target-dir="libs"/>
-
-		<!--
-			LibraryProject/res/*.*
-			search: (src/android/LibraryProject/(.+?)/[^/]+)$
-			replace: <source-file src="$1" target-dir="$2"/>
-		-->
-		<?
-			$pluginHelper->sourceFiles("res", array('indent'=>"\t\t", 'ignorePattern' => '#values/strings.xml#'));
-		?>
-
-		<!-- plugman cannot merge - prepare manual merge -->
-        <config-file target="res/values/strings.xml" parent="/resources">
-			<?=$pluginHelper->getXml('res/values/strings.xml', "/resources", array('ignorePattern' => '/name="(app_name|menu_settings)"/', 'indent' => "\t\t\t"))?>
-        </config-file>
-    </platform>
-</plugin>
-<?php 
-	$pluginText = ob_get_clean();
-	file_put_contents("plugin.xml", $pluginText);
-?>

src/ios/CDVBarcodeScanner.mm

@@ -10,6 +10,7 @@
 #import <UIKit/UIKit.h>
 #import <AVFoundation/AVFoundation.h>
 #import <AssetsLibrary/AssetsLibrary.h>
+#import <AudioToolbox/AudioToolbox.h>
 
 //------------------------------------------------------------------------------
 // use the all-in-one version of zxing that we built
@@ -205,6 +206,8 @@
 @synthesize is2D                 = _is2D;
 @synthesize capturing            = _capturing;
 
+SystemSoundID _soundFileObject;
+
 //--------------------------------------------------------------------------
 - (id)initWithPlugin:(CDVBarcodeScanner*)plugin
             callback:(NSString*)callback
@@ -222,6 +225,9 @@ parentViewController:(UIViewController*)parentViewController
     self.is2D      = YES;
     self.capturing = NO;
     
+    CFURLRef soundFileURLRef  = CFBundleCopyResourceURL(CFBundleGetMainBundle(), CFSTR("CDVBarcodeScanner.bundle/beep"), CFSTR ("caf"), NULL);
+    AudioServicesCreateSystemSoundID(soundFileURLRef, &_soundFileObject);
+    
     return self;
 }
 
@@ -237,6 +243,9 @@ parentViewController:(UIViewController*)parentViewController
     
     self.capturing = NO;
     
+    AudioServicesRemoveSystemSoundCompletion(_soundFileObject);
+    AudioServicesDisposeSystemSoundID(_soundFileObject);
+    
     [super dealloc];
 }
 
@@ -281,6 +290,9 @@ parentViewController:(UIViewController*)parentViewController
 //--------------------------------------------------------------------------
 - (void)barcodeScanSucceeded:(NSString*)text format:(NSString*)format {
     [self barcodeScanDone];
+    
+    AudioServicesPlaySystemSound(_soundFileObject);
+    
     [self.plugin returnSuccess:text format:format cancelled:FALSE callback:self.callback];
 }
 
@@ -320,7 +332,9 @@ parentViewController:(UIViewController*)parentViewController
     output.alwaysDiscardsLateVideoFrames = YES;
     output.videoSettings = videoOutputSettings;
     
-    [output setSampleBufferDelegate:self queue:dispatch_get_main_queue()];
+    dispatch_queue_t queue = dispatch_queue_create("CDVBarcodeScanner", NULL);
+    [output setSampleBufferDelegate:self queue:queue];
+    dispatch_release(queue);
     
     if (![captureSession canSetSessionPreset:AVCaptureSessionPresetMedium]) {
         return @"unable to preset medium quality video capture";
@@ -416,7 +430,13 @@ parentViewController:(UIViewController*)parentViewController
         const char* cString      = resultText->getText().c_str();
         NSString*   resultString = [[[NSString alloc] initWithCString:cString encoding:NSUTF8StringEncoding] autorelease];
         
-        [self barcodeScanSucceeded:resultString format:format];
+        NSMethodSignature *sig = [self methodSignatureForSelector:@selector(barcodeScanSucceeded:format:)];
+        NSInvocation *invoke = [NSInvocation invocationWithMethodSignature:sig];
+        [invoke setTarget:self];
+        [invoke setSelector:@selector(barcodeScanSucceeded:format:)];
+        [invoke setArgument:&resultString atIndex:2];
+        [invoke setArgument:&format atIndex:3];
+        [invoke performSelectorOnMainThread:@selector(invoke) withObject:nil waitUntilDone:YES];
         
     }
     catch (zxing::ReaderException &rex) {
@@ -855,4 +875,4 @@ parentViewController:(UIViewController*)parentViewController
     [super willAnimateRotationToInterfaceOrientation:orientation duration:duration];
 }
 
-@end
+@end

src/wp/BarcodeScanner.cs

@@ -0,0 +1,46 @@
+using BarcodeScanner;
+using Microsoft.Phone.Controls;
+using System;
+using System.Windows;
+using System.Windows.Navigation;
+using WPCordovaClassLib.Cordova;
+using WPCordovaClassLib.Cordova.Commands;
+using WPCordovaClassLib.Cordova.JSON;
+
+namespace Cordova.Extension.Commands
+{
+    public class BarcodeScanner : BaseCommand
+    {
+        private PhoneApplicationFrame currentRootVisual;
+
+        public void scan(string options)
+        {
+            Deployment.Current.Dispatcher.BeginInvoke(() =>
+            {
+                currentRootVisual = Application.Current.RootVisual as PhoneApplicationFrame;
+                currentRootVisual.Navigated += OnFrameNavigated;
+                currentRootVisual.Navigate(new Uri("/Plugins/com.phonegap.plugins.barcodescanner/Scan.xaml", UriKind.Relative));
+            });            
+        }
+
+        private void OnFrameNavigated(object sender, NavigationEventArgs e)
+        {
+            var scanPage = e.Content as Scan;
+            if (scanPage != null)
+            {
+                scanPage.BarcodeScannerPlugin = this;
+            }
+        }
+
+        public void OnScanFailed(string error)
+        {
+            DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, error));
+        }
+
+        public void OnScanSucceeded(BarcodeScannerResult scanResult)
+        {
+            var resultString = JsonHelper.Serialize(scanResult);
+            DispatchCommandResult(new PluginResult(PluginResult.Status.OK, resultString));
+        }
+    }
+}

src/wp/BarcodeScannerResult.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BarcodeScanner
+{
+    public class BarcodeScannerResult
+    {
+        public string format
+        {
+            get;
+            set;
+        }
+
+        public string text
+        {
+            get;
+            set;
+        }
+    }
+}

src/wp/Scan.xaml

@@ -0,0 +1,40 @@
+<phone:PhoneApplicationPage
+    x:Class="BarcodeScanner.Scan"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
+    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    FontFamily="{StaticResource PhoneFontFamilyNormal}"
+    FontSize="{StaticResource PhoneFontSizeNormal}"
+    Foreground="{StaticResource PhoneForegroundBrush}"
+    SupportedOrientations="Portrait" Orientation="Portrait"
+    mc:Ignorable="d"
+    shell:SystemTray.IsVisible="True">
+
+    <!--LayoutRoot is the root grid where all page content is placed-->
+    <Grid x:Name="LayoutRoot" Background="Transparent">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*" />
+            <RowDefinition Height="100" />
+        </Grid.RowDefinitions>
+
+        <Canvas x:Name="viewfinderCanvas">
+
+            <!--Camera viewfinder -->
+            <Canvas.Background>
+                <VideoBrush x:Name="viewfinderBrush">
+                    <VideoBrush.RelativeTransform>
+                        <CompositeTransform
+                            x:Name="viewfinderTransform"
+                            CenterX="0.5"
+                            CenterY="0.5"
+                            Rotation="90"/>
+                    </VideoBrush.RelativeTransform>
+                </VideoBrush>
+            </Canvas.Background>
+        </Canvas>
+    </Grid>
+
+</phone:PhoneApplicationPage>

src/wp/Scan.xaml.cs

@@ -0,0 +1,151 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Navigation;
+using Microsoft.Phone.Controls;
+using Microsoft.Phone.Shell;
+using Microsoft.Devices;
+using System.Windows.Threading;
+using System.Windows.Media.Imaging;
+using ZXing;
+
+namespace BarcodeScanner
+{
+    public partial class Scan : PhoneApplicationPage
+    {
+        private PhotoCamera phoneCamera;
+        private IBarcodeReader barcodeReader;
+        private DispatcherTimer scanTimer;
+        private WriteableBitmap previewBuffer;
+
+        private string scannedCode = string.Empty;
+
+        private bool scanSucceeded;
+
+        public Scan()
+        {
+            InitializeComponent();
+        }
+
+        public Cordova.Extension.Commands.BarcodeScanner BarcodeScannerPlugin
+        {
+            get;
+            set;
+        }
+
+        protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
+        {
+            // Initialize the camera object
+            phoneCamera = new PhotoCamera();
+            phoneCamera.Initialized += OnCameraInitialized;
+
+            CameraButtons.ShutterKeyHalfPressed += OnCameraButtonShutterKeyHalfPressed;
+
+            //Display the camera feed in the UI
+            viewfinderBrush.SetSource(phoneCamera);
+
+
+            // This timer will be used to scan the camera buffer every 250ms and scan for any barcodes
+            scanTimer = new DispatcherTimer();
+            scanTimer.Interval = TimeSpan.FromMilliseconds(250);
+            scanTimer.Tick += (o, arg) => ScanForBarcode();
+
+            base.OnNavigatedTo(e);
+        }
+
+        private void OnCameraButtonShutterKeyHalfPressed(object sender, EventArgs e)
+        {
+            phoneCamera.Focus();
+        }
+
+        protected override void OnNavigatingFrom(System.Windows.Navigation.NavigatingCancelEventArgs e)
+        {
+            scanTimer.Stop();
+
+            if (phoneCamera != null)
+            {
+                phoneCamera.Dispose();
+                phoneCamera.Initialized -= OnCameraInitialized;
+                CameraButtons.ShutterKeyHalfPressed -= OnCameraButtonShutterKeyHalfPressed;
+            }
+
+            if (!scanSucceeded)
+            {
+                BarcodeScannerPlugin.OnScanFailed("Cancelled by user");
+            }
+        }
+
+        void OnCameraInitialized(object sender, Microsoft.Devices.CameraOperationCompletedEventArgs e)
+        {
+            if (e.Succeeded)
+            {
+                this.Dispatcher.BeginInvoke(delegate()
+                {
+                    phoneCamera.FlashMode = FlashMode.Off;
+                    previewBuffer = new WriteableBitmap((int)phoneCamera.PreviewResolution.Width, (int)phoneCamera.PreviewResolution.Height);
+
+                    barcodeReader = new BarcodeReader();
+
+                    // By default, BarcodeReader will scan every supported barcode type
+                    // If we want to limit the type of barcodes our app can read, 
+                    // we can do it by adding each format to this list object
+
+                    //var supportedBarcodeFormats = new List<BarcodeFormat>();
+                    //supportedBarcodeFormats.Add(BarcodeFormat.QR_CODE);
+                    //supportedBarcodeFormats.Add(BarcodeFormat.DATA_MATRIX);
+                    //_bcReader.PossibleFormats = supportedBarcodeFormats;
+
+                    barcodeReader.Options.TryHarder = true;
+
+                    barcodeReader.ResultFound += OnBarcodeResultFound;
+                    scanTimer.Start();
+                });
+            }
+            else
+            {
+                Dispatcher.BeginInvoke(() =>
+                {
+                    BarcodeScannerPlugin.OnScanFailed("Unable to initialize the camera");
+                });
+            }
+        }
+
+        private void OnBarcodeResultFound(Result obj)
+        {
+            if (BarcodeIsValid(obj.Text))
+            {
+                var barcodeScannerResult = new BarcodeScannerResult();
+                barcodeScannerResult.format = obj.BarcodeFormat.ToString();
+                barcodeScannerResult.text = obj.Text;
+                scanSucceeded = true;
+
+                BarcodeScannerPlugin.OnScanSucceeded(barcodeScannerResult);
+                NavigationService.GoBack();
+            }
+        }
+
+        private bool BarcodeIsValid(string barcode)
+        {
+            if (barcode.Equals(scannedCode))
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        private void ScanForBarcode()
+        {
+            //grab a camera snapshot
+            phoneCamera.GetPreviewBufferArgb32(previewBuffer.Pixels);
+            previewBuffer.Invalidate();
+
+            //scan the captured snapshot for barcodes
+            //if a barcode is found, the ResultFound event will fire
+            barcodeReader.Decode(previewBuffer);
+        }
+    }
+}

www/barcodescanner.js

@@ -6,10 +6,7 @@
  * Copyright (c) 2011, IBM Corporation
  */
 
-
+    var ScannerLoader = function (require, exports, module) {
-cordova.define("cordova/plugin/BarcodeScanner",
-    
-    function (require, exports, module) {
 
         var exec = require("cordova/exec");
 
@@ -88,4 +85,13 @@ cordova.define("cordova/plugin/BarcodeScanner",
 
         var barcodeScanner = new BarcodeScanner();
         module.exports = barcodeScanner;
-    });
+
+    }
+
+    ScannerLoader(require, exports, module);
+
+    cordova.define("cordova/plugin/BarcodeScanner", ScannerLoader);
+
+
+
+