added button to open images

src/eu/siacs/conversations/persistance/FileBackend.java

@@ -0,0 +1,76 @@
+package eu.siacs.conversations.persistance;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.math.BigInteger;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.util.Log;
+
+import eu.siacs.conversations.entities.Conversation;
+
+
+public class FileBackend {
+	
+	private static int IMAGE_SIZE = 1920;
+	
+	private Context context;
+	
+	public FileBackend(Context context) {
+		this.context = context;
+	}
+	
+	
+	public File copyImageToPrivateStorage(Conversation conversation, Uri image) {
+		try {
+			InputStream is = context.getContentResolver().openInputStream(image);
+			String prefix =  context.getFilesDir().getAbsolutePath();
+			String path = prefix+"/"+conversation.getAccount().getJid()+"/"+conversation.getContactJid();
+			String filename =new BigInteger(""+System.currentTimeMillis()).toString(32) + ".webp";
+			File file = new File(path+"/"+filename);
+			file.getParentFile().mkdirs();
+			file.createNewFile();
+			OutputStream os = new FileOutputStream(file);
+			Bitmap originalBitmap = BitmapFactory.decodeStream(is);
+			is.close();
+			int w = originalBitmap.getWidth();
+			int h = originalBitmap.getHeight();
+			boolean success;
+			if (Math.max(w, h) > IMAGE_SIZE) {
+				int scalledW;
+				int scalledH;
+				if (w<=h) {
+					scalledW = (int) (w / ((double) h/IMAGE_SIZE));
+					scalledH = IMAGE_SIZE;
+				} else {
+					scalledW = IMAGE_SIZE;
+					scalledH = (int) (h / ((double) w/IMAGE_SIZE));
+				}
+				Bitmap scalledBitmap = Bitmap.createScaledBitmap(originalBitmap, scalledW,scalledH, true);
+				success = scalledBitmap.compress(Bitmap.CompressFormat.WEBP, 75, os);
+			} else {
+				success = originalBitmap.compress(Bitmap.CompressFormat.WEBP, 75, os);
+			}
+			if (!success) {
+				Log.d("xmppService","couldnt compress");
+			}
+			os.close();
+			return file;
+		} catch (FileNotFoundException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		
+		return null;
+	}
+}

src/eu/siacs/conversations/services/XmppConnectionService.java

@@ -27,6 +27,7 @@ import eu.siacs.conversations.entities.MucOptions;
 import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
 import eu.siacs.conversations.entities.Presences;
 import eu.siacs.conversations.persistance.DatabaseBackend;
+import eu.siacs.conversations.persistance.FileBackend;
 import eu.siacs.conversations.persistance.OnPhoneContactsMerged;
 import eu.siacs.conversations.ui.OnAccountListChangedListener;
 import eu.siacs.conversations.ui.OnConversationListChangedListener;
@@ -73,6 +74,7 @@ public class XmppConnectionService extends Service {
 
 	protected static final String LOGTAG = "xmppService";
 	public DatabaseBackend databaseBackend;
+	private FileBackend fileBackend;
 
 	public long startDate;
 
@@ -381,6 +383,11 @@ public class XmppConnectionService extends Service {
 
 	}
 
+	public FileBackend getFileBackend() {
+		return this.fileBackend;
+	}
+	
+	
 	protected Conversation findMuc(String name, Account account) {
 		for (Conversation conversation : this.conversations) {
 			if (conversation.getContactJid().split("/")[0].equals(name)
@@ -522,7 +529,8 @@ public class XmppConnectionService extends Service {
 	@Override
 	public void onCreate() {
 		ExceptionHelper.init(getApplicationContext());
-		databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
+		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
+		this.fileBackend = new FileBackend(getApplicationContext());
 		this.accounts = databaseBackend.getAccounts();
 
 		this.getConversations();

src/eu/siacs/conversations/ui/ConversationActivity.java

@@ -1,5 +1,8 @@
 package eu.siacs.conversations.ui;
 
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -8,8 +11,11 @@ import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
 import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.persistance.FileBackend;
 import eu.siacs.conversations.utils.ExceptionHelper;
+import eu.siacs.conversations.utils.PhoneHelper;
 import eu.siacs.conversations.utils.UIHelper;
+import android.net.Uri;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.app.AlertDialog;
@@ -18,6 +24,7 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.graphics.Typeface;
 import android.support.v4.widget.SlidingPaneLayout;
@@ -46,6 +53,7 @@ public class ConversationActivity extends XmppActivity {
 	
 	public static final int REQUEST_SEND_MESSAGE = 0x75441;
 	public static final int REQUEST_DECRYPT_PGP = 0x76783;
+	private static final int ATTACH_FILE = 0x48502;
 
 	protected SlidingPaneLayout spl;
 
@@ -272,6 +280,13 @@ public class ConversationActivity extends XmppActivity {
 		case android.R.id.home:
 			spl.openPane();
 			break;
+		case R.id.action_attach_file:
+			Intent attachFileIntent = new Intent();
+            attachFileIntent.setType("image/*");
+            attachFileIntent.setAction(Intent.ACTION_GET_CONTENT);
+            startActivityForResult(Intent.createChooser(attachFileIntent,
+                    "Attach File"), ATTACH_FILE);
+			break;
 		case R.id.action_add:
 			startActivity(new Intent(this, ContactsActivity.class));
 			break;
@@ -478,6 +493,11 @@ public class ConversationActivity extends XmppActivity {
 				if (selectedFragment!=null) {
 					selectedFragment.hidePgpPassphraseBox();
 				}
+			} else if (requestCode == ATTACH_FILE) {
+				FileBackend backend = xmppConnectionService.getFileBackend();
+				File file = backend.copyImageToPrivateStorage(getSelectedConversation(), data.getData());
+				Log.d(LOGTAG,"new file"+file.getAbsolutePath());
+				
 			}
 		 }
 	 }

src/eu/siacs/conversations/utils/PhoneHelper.java

@@ -13,18 +13,19 @@ import android.os.Bundle;
 import android.os.Looper;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.Profile;
+import android.provider.MediaStore;
 
 public class PhoneHelper {
 
-	public static void loadPhoneContacts(Context context, final OnPhoneContactsLoadedListener listener) {
+	public static void loadPhoneContacts(Context context,
+			final OnPhoneContactsLoadedListener listener) {
 		if (Looper.myLooper() == null) {
 			Looper.prepare();
 		}
 		final Looper mLooper = Looper.myLooper();
 		final Hashtable<String, Bundle> phoneContacts = new Hashtable<String, Bundle>();
 
-		final String[] PROJECTION = new String[] {
+		final String[] PROJECTION = new String[] { ContactsContract.Data._ID,
-				ContactsContract.Data._ID,
 				ContactsContract.Data.DISPLAY_NAME,
 				ContactsContract.Data.PHOTO_THUMBNAIL_URI,
 				ContactsContract.Data.LOOKUP_KEY,