diff options
Diffstat (limited to 'plugins/org.devgeeks.Canvas2ImagePlugin/src')
4 files changed, 255 insertions, 0 deletions
diff --git a/plugins/org.devgeeks.Canvas2ImagePlugin/src/android/Canvas2ImagePlugin.java b/plugins/org.devgeeks.Canvas2ImagePlugin/src/android/Canvas2ImagePlugin.java new file mode 100644 index 00000000..90118c0b --- /dev/null +++ b/plugins/org.devgeeks.Canvas2ImagePlugin/src/android/Canvas2ImagePlugin.java @@ -0,0 +1,126 @@ +package org.devgeeks.Canvas2ImagePlugin; + +import java.io.File; +import java.io.FileOutputStream; +import java.util.Calendar; + +import org.apache.cordova.CallbackContext; +import org.apache.cordova.CordovaPlugin; + +import org.json.JSONArray; +import org.json.JSONException; + +import android.content.Intent; +import android.graphics.Bitmap; +import android.graphics.BitmapFactory; +import android.net.Uri; +import android.os.Build; +import android.os.Environment; +import android.util.Base64; +import android.util.Log; + +/** + * Canvas2ImagePlugin.java + * + * Android implementation of the Canvas2ImagePlugin for iOS. + * Inspirated by Joseph's "Save HTML5 Canvas Image to Gallery" plugin + * http://jbkflex.wordpress.com/2013/06/19/save-html5-canvas-image-to-gallery-phonegap-android-plugin/ + * + * @author Vegard Løkken <vegard@headspin.no> + */ +public class Canvas2ImagePlugin extends CordovaPlugin { + public static final String ACTION = "saveImageDataToLibrary"; + + @Override + public boolean execute(String action, JSONArray data, + CallbackContext callbackContext) throws JSONException { + + if (action.equals(ACTION)) { + + String base64 = data.optString(0); + if (base64.equals("")) // isEmpty() requires API level 9 + callbackContext.error("Missing base64 string"); + + // Create the bitmap from the base64 string + Log.d("Canvas2ImagePlugin", base64); + byte[] decodedString = Base64.decode(base64, Base64.DEFAULT); + Bitmap bmp = BitmapFactory.decodeByteArray(decodedString, 0, decodedString.length); + if (bmp == null) { + callbackContext.error("The image could not be decoded"); + } else { + + // Save the image + File imageFile = savePhoto(bmp); + if (imageFile == null) + callbackContext.error("Error while saving image"); + + // Update image gallery + scanPhoto(imageFile); + + callbackContext.success(imageFile.toString()); + } + + return true; + } else { + return false; + } + } + + private File savePhoto(Bitmap bmp) { + File retVal = null; + + try { + Calendar c = Calendar.getInstance(); + String date = "" + c.get(Calendar.DAY_OF_MONTH) + + c.get(Calendar.MONTH) + + c.get(Calendar.YEAR) + + c.get(Calendar.HOUR_OF_DAY) + + c.get(Calendar.MINUTE) + + c.get(Calendar.SECOND); + + String deviceVersion = Build.VERSION.RELEASE; + Log.i("Canvas2ImagePlugin", "Android version " + deviceVersion); + int check = deviceVersion.compareTo("2.3.3"); + + File folder; + /* + * File path = Environment.getExternalStoragePublicDirectory( + * Environment.DIRECTORY_PICTURES ); //this throws error in Android + * 2.2 + */ + if (check >= 1) { + folder = Environment + .getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES); + + if(!folder.exists()) { + folder.mkdirs(); + } + } else { + folder = Environment.getExternalStorageDirectory(); + } + + File imageFile = new File(folder, "c2i_" + date.toString() + ".png"); + + FileOutputStream out = new FileOutputStream(imageFile); + bmp.compress(Bitmap.CompressFormat.PNG, 100, out); + out.flush(); + out.close(); + + retVal = imageFile; + } catch (Exception e) { + Log.e("Canvas2ImagePlugin", "An exception occured while saving image: " + + e.toString()); + } + return retVal; + } + + /* Invoke the system's media scanner to add your photo to the Media Provider's database, + * making it available in the Android Gallery application and to other apps. */ + private void scanPhoto(File imageFile) + { + Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); + Uri contentUri = Uri.fromFile(imageFile); + mediaScanIntent.setData(contentUri); + cordova.getActivity().sendBroadcast(mediaScanIntent); + } +} diff --git a/plugins/org.devgeeks.Canvas2ImagePlugin/src/ios/Canvas2ImagePlugin.h b/plugins/org.devgeeks.Canvas2ImagePlugin/src/ios/Canvas2ImagePlugin.h new file mode 100644 index 00000000..ef7bc567 --- /dev/null +++ b/plugins/org.devgeeks.Canvas2ImagePlugin/src/ios/Canvas2ImagePlugin.h @@ -0,0 +1,22 @@ +// +// Canvas2ImagePlugin.h +// Canvas2ImagePlugin PhoneGap/Cordova plugin +// +// Created by Tommy-Carlos Williams on 29/03/12. +// Copyright (c) 2012 Tommy-Carlos Williams. All rights reserved. +// MIT Licensed +// + + +#import <Cordova/CDVPlugin.h> + +@interface Canvas2ImagePlugin : CDVPlugin +{ + NSString* callbackId; +} + +@property (nonatomic, copy) NSString* callbackId; + +- (void)saveImageDataToLibrary:(CDVInvokedUrlCommand*)command; + +@end diff --git a/plugins/org.devgeeks.Canvas2ImagePlugin/src/ios/Canvas2ImagePlugin.m b/plugins/org.devgeeks.Canvas2ImagePlugin/src/ios/Canvas2ImagePlugin.m new file mode 100644 index 00000000..734ee006 --- /dev/null +++ b/plugins/org.devgeeks.Canvas2ImagePlugin/src/ios/Canvas2ImagePlugin.m @@ -0,0 +1,58 @@ +// +// 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 +// + +#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]; + UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil); + +} + +- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo +{ + // Was there an error? + if (error != NULL) + { + // Show error message... + NSLog(@"ERROR: %@",error); + CDVPluginResult* result = [CDVPluginResult resultWithStatus: CDVCommandStatus_ERROR messageAsString:error.description]; + [self.webView stringByEvaluatingJavaScriptFromString:[result toErrorCallbackString: self.callbackId]]; + } + else // No errors + { + // Show message image successfully saved + NSLog(@"IMAGE SAVED!"); + CDVPluginResult* result = [CDVPluginResult resultWithStatus: CDVCommandStatus_OK messageAsString:@"Image saved"]; + [self.webView stringByEvaluatingJavaScriptFromString:[result toSuccessCallbackString: self.callbackId]]; + } +} + +- (void)dealloc +{ + [callbackId release]; + [super dealloc]; +} + + +@end diff --git a/plugins/org.devgeeks.Canvas2ImagePlugin/src/wp8/Canvas2ImagePlugin.cs b/plugins/org.devgeeks.Canvas2ImagePlugin/src/wp8/Canvas2ImagePlugin.cs new file mode 100644 index 00000000..6376348c --- /dev/null +++ b/plugins/org.devgeeks.Canvas2ImagePlugin/src/wp8/Canvas2ImagePlugin.cs @@ -0,0 +1,49 @@ +using Microsoft.Xna.Framework.Media; +using System; +using System.IO; +using System.Text; +using WPCordovaClassLib.Cordova; +using WPCordovaClassLib.Cordova.Commands; +using WPCordovaClassLib.Cordova.JSON; + +public class Canvas2ImagePlugin : BaseCommand +{ + public Canvas2ImagePlugin() + { + } + + public void saveImageDataToLibrary(string jsonArgs) + { + try + { + var options = JsonHelper.Deserialize<string[]>(jsonArgs); + + string imageData = options[0]; + byte[] imageBytes = Convert.FromBase64String(imageData); + + using (var imageStream = new MemoryStream(imageBytes)) + { + imageStream.Seek(0, SeekOrigin.Begin); + + string fileName = String.Format("c2i_{0:yyyyMMdd_HHmmss}", DateTime.Now); + var library = new MediaLibrary(); + var picture = library.SavePicture(fileName, imageStream); + + if (picture.Name.Contains(fileName)) + { + DispatchCommandResult(new PluginResult(PluginResult.Status.OK, + "Image saved: " + picture.Name)); + } + else + { + DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, + "Failed to save image: " + picture.Name)); + } + } + } + catch (Exception ex) + { + DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, ex.Message)); + } + } +} |