1 files changed, 126 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);
+	}
+}