Canvas2ImagePlugin.m

//
//  Canvas2ImagePlugin.m
//  Canvas2ImagePlugin PhoneGap/Cordova plugin
//
//  Created by Tommy-Carlos Williams on 29/03/12.
//  Copyright (c) 2012 Tommy-Carlos Williams. All rights reserved.
//	MIT Licensed
//
//Updated to return file path in success callback

#import "Canvas2ImagePlugin.h"
#import <Cordova/CDV.h>

@implementation Canvas2ImagePlugin
@synthesize callbackId;

//-(CDVPlugin*) initWithWebView:(UIWebView*)theWebView
//{
//    self = (Canvas2ImagePlugin*)[super initWithWebView:theWebView];
//    return self;
//}

- (void)saveImageDataToLibrary:(CDVInvokedUrlCommand*)command
{
    self.callbackId = command.callbackId;
	NSData* imageData = [NSData dataFromBase64String:[command.arguments objectAtIndex:0]];
	
	UIImage* image = [[[UIImage alloc] initWithData:imageData] autorelease];
	ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];

    [library writeImageToSavedPhotosAlbum: image.CGImage metadata:nil completionBlock:^(NSURL *assetURL, NSError *error){
		if (error)
		{  
			// Show error message...
			NSLog(@"ERROR: %@",error);
			CDVPluginResult* result = [CDVPluginResult resultWithStatus: CDVCommandStatus_ERROR messageAsString:error.description];
			[self.webView stringByEvaluatingJavaScriptFromString:[result toErrorCallbackString: self.callbackId]];
		}
		else
		{  
			// Show message image successfully saved
			NSLog(@"Saved URL : %@", assetURL);
			CDVPluginResult* result = [CDVPluginResult resultWithStatus: CDVCommandStatus_OK messageAsString:[assetURL absoluteString]];
			[self.webView stringByEvaluatingJavaScriptFromString:[result toSuccessCallbackString: self.callbackId]];
		}  
}];  
[library release];	
}
- (void)dealloc
{	
	[callbackId release];
    [super dealloc];
}


@end