Use Zbar barcode reader with PhoneGap on iPhone

gistfile4.txt

function onBodyLoad()
{
    // this is standard with phonegap. body onload="onBodyLoad()"
    document.addEventListener("deviceready",onDeviceReady,false);
}

function onDeviceReady()
{
    // once device is ready, you can execute Zbar.
    // this fires the Obj-C directly. I am trying to figure out the JS layer.
    PhoneGap.exec("ZbarPlug.showZbar");
}

ZbarPhoneGap.h

//
//  ZbarPlug.h
//  Phun
//
//  Created by Jeff Lee on 12/12/10.
//  Copyright 2010 __MyCompanyName__. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#import "PhoneGapCommand.h"
#import "ZBarSDK.h"

@interface ZbarPlug : PhoneGapCommand <ZBarReaderViewDelegate>
{
}
- (void)showZbar:(NSArray*)arguments withDict:(NSDictionary*)options;

@end

ZbarPhonegap.js

function ZbarPlug() {
}


ZbarPlug.prototype.getQrCode = function () {
	PhoneGap.exec("ZbarPlug.showZbar");
};

PhoneGap.addConstructor( function () 
{
  if (typeof window.plugins == 'undefined')
    window.plugins = {};
  if( typeof window.plugins.ZbarPlug == 'undefined' )
    window.plugins.ZbarPlug = new ZbarPlug();
});

ZbarPhoneGap.m

//
//  ZbarPlug.m
//  Phun
//
//  Created by Jeff Lee on 12/12/10.
//  Copyright 2010 __MyCompanyName__. All rights reserved.
//

#import <UIKit/UIKit.h>
#import <QuartzCore/QuartzCore.h>
#import "ZbarPlug.h"

@implementation ZbarPlug

- (void)showZbar:(NSArray*)arguments withDict:(NSDictionary*)options
{
    // Zbar provides you a fully functional UI that automatically scans!
    ZBarReaderViewController *reader = [ZBarReaderViewController new];
    reader.readerDelegate = self;
	
    ZBarImageScanner *scanner = reader.scanner;
    [scanner setSymbology: ZBAR_I25
				   config: ZBAR_CFG_ENABLE
					   to: 0];
	
    // present and release the controller
    // [super appViewController] piece is where the magic happens 
    // PhoneGap will pass control and open the Zbar scanner!
    [[super appViewController] presentModalViewController:reader animated:YES];
    [reader release];
}

// This is inherited from the ZBarReaderViewDelegate
- (void) imagePickerController: (UIImagePickerController*) reader
 didFinishPickingMediaWithInfo: (NSDictionary*) info
{
    // ADD: get the decode results
    id<NSFastEnumeration> results = [info objectForKey: ZBarReaderControllerResults];
	//UIImage *image = [info objectForKey: UIImagePickerControllerOriginalImage];
    ZBarSymbol *symbol = nil;

    for(symbol in results)
        // EXAMPLE: just grab the first barcode
        break;
	
        // This is where the magic happens to send back the 
        // decoded information to PhoneGap.

	NSString* retStr = [ NSString stringWithFormat:@"alert(\"%@\");", symbol.data];
	[ webView stringByEvaluatingJavaScriptFromString:retStr ];	
	
	[info objectForKey: UIImagePickerControllerOriginalImage];
	
    // ADD: dismiss the controller (NB dismiss from the *reader*!)
    [[super appViewController] dismissModalViewControllerAnimated:YES];
}

@end

Always get error "PhoneGapCommand.h file not found", is this plugin outdated or someone is still working on it, I need functionalities like PhoneGap Barcode Scanner, but unfortunately it does not support for interleaved 2of5 bar code :(