src/com/owncloud/android/ui/activity/Uploader.java

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author Bartek Przybylski
   5  *   Copyright (C) 2012  Bartek Przybylski
   6  *   Copyright (C) 2015 ownCloud Inc.
   7  *
   8  *   This program is free software: you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License version 2,
  10  *   as published by the Free Software Foundation.
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 package com.owncloud.android.ui.activity;
  23
  24 import java.io.File;
  25 import java.util.ArrayList;
  26 import java.util.HashMap;
  27 import java.util.LinkedList;
  28 import java.util.List;
  29 import java.util.Stack;
  30 import java.util.Vector;
  31
  32
  33 import android.accounts.Account;
  34 import android.accounts.AccountManager;
  35 import android.app.AlertDialog;
  36 import android.app.AlertDialog.Builder;
  37 import android.app.Dialog;
  38 import android.app.ProgressDialog;
  39 import android.content.Context;
  40 import android.content.DialogInterface;
  41 import android.content.DialogInterface.OnCancelListener;
  42 import android.content.DialogInterface.OnClickListener;
  43 import android.content.Intent;
  44 import android.content.SharedPreferences;
  45 import android.content.res.Resources.NotFoundException;
  46 import android.database.Cursor;
  47 import android.net.Uri;
  48 import android.os.Bundle;
  49 import android.os.Parcelable;
  50 import android.preference.PreferenceManager;
  51 import android.provider.MediaStore;
  52 import android.provider.MediaStore.Audio;
  53 import android.provider.MediaStore.Images;
  54 import android.provider.MediaStore.Video;
  55 import android.support.v4.app.Fragment;
  56 import android.support.v4.app.FragmentManager;
  57 import android.support.v4.app.FragmentTransaction;
  58 import android.view.View;
  59 import android.widget.AdapterView;
  60 import android.widget.AdapterView.OnItemClickListener;
  61 import android.widget.Button;
  62 import android.widget.EditText;
  63 import android.widget.ListView;
  64 import android.widget.SimpleAdapter;
  65 import android.widget.Toast;
  66
  67 import com.actionbarsherlock.app.ActionBar;
  68 import com.actionbarsherlock.view.MenuItem;
  69 import com.owncloud.android.MainApp;
  70 import com.owncloud.android.R;
  71 import com.owncloud.android.authentication.AccountAuthenticator;
  72 import com.owncloud.android.datamodel.OCFile;
  73 import com.owncloud.android.files.services.FileUploader;
  74 import com.owncloud.android.lib.common.operations.RemoteOperation;
  75 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  76 import com.owncloud.android.lib.common.utils.Log_OC;
  77 import com.owncloud.android.operations.CreateFolderOperation;
  78 import com.owncloud.android.ui.dialog.CreateFolderDialogFragment;
  79 import com.owncloud.android.ui.dialog.LoadingDialog;
  80 import com.owncloud.android.utils.CopyTmpFileAsyncTask;
  81 import com.owncloud.android.utils.DisplayUtils;
  82 import com.owncloud.android.utils.ErrorMessageAdapter;
  83
  84
  85 /**
  86  * This can be used to upload things to an ownCloud instance.
  87  */
  88 public class Uploader extends FileActivity
  89         implements OnItemClickListener, android.view.View.OnClickListener,
  90         CopyTmpFileAsyncTask.OnCopyTmpFileTaskListener {
  91
  92     private static final String TAG = Uploader.class.getSimpleName();
  93
  94     private AccountManager mAccountManager;
  95     private Stack<String> mParents;
  96     private ArrayList<Parcelable> mStreamsToUpload;
  97     private boolean mCreateDir;
  98     private String mUploadPath;
  99     private OCFile mFile;
 100     private boolean mAccountSelected;
 101
 102     private ArrayList<String> mRemoteCacheData;
 103     private int mNumCacheFile;
 104
 105     private final static int DIALOG_NO_ACCOUNT = 0;
 106     private final static int DIALOG_WAITING = 1;
 107     private final static int DIALOG_NO_STREAM = 2;
 108     private final static int DIALOG_MULTIPLE_ACCOUNT = 3;
 109
 110     private final static int REQUEST_CODE_SETUP_ACCOUNT = 0;
 111
 112     private final static String KEY_PARENTS = "PARENTS";
 113     private final static String KEY_FILE = "FILE";
 114     private final static String KEY_ACCOUNT_SELECTED = "ACCOUNT_SELECTED";
 115     private final static String KEY_NUM_CACHE_FILE = "NUM_CACHE_FILE";
 116     private final static String KEY_REMOTE_CACHE_DATA = "REMOTE_CACHE_DATA";
 117
 118     private static final String DIALOG_WAIT_COPY_FILE = "DIALOG_WAIT_COPY_FILE";
 119
 120     @Override
 121     protected void onCreate(Bundle savedInstanceState) {
 122         prepareStreamsToUpload();
 123
 124         if (savedInstanceState == null) {
 125             mParents = new Stack<String>();
 126             mAccountSelected = false;
 127             mNumCacheFile = 0;
 128
 129             // ArrayList for files with path in private storage
 130             mRemoteCacheData = new ArrayList<String>();
 131         } else {
 132             mParents = (Stack<String>) savedInstanceState.getSerializable(KEY_PARENTS);
 133             mFile = savedInstanceState.getParcelable(KEY_FILE);
 134             mAccountSelected = savedInstanceState.getBoolean(KEY_ACCOUNT_SELECTED);
 135             mNumCacheFile = savedInstanceState.getInt(KEY_NUM_CACHE_FILE);
 136             mRemoteCacheData = savedInstanceState.getStringArrayList(KEY_REMOTE_CACHE_DATA);
 137         }
 138         super.onCreate(savedInstanceState);
 139
 140         ActionBar actionBar = getSupportActionBar();
 141         actionBar.setIcon(DisplayUtils.getSeasonalIconId());
 142
 143     }
 144
 145     @Override
 146     protected void setAccount(Account account, boolean savedAccount) {
 147         if (somethingToUpload()) {
 148             mAccountManager = (AccountManager) getSystemService(Context.ACCOUNT_SERVICE);
 149             Account[] accounts = mAccountManager.getAccountsByType(MainApp.getAccountType());
 150             if (accounts.length == 0) {
 151                 Log_OC.i(TAG, "No ownCloud account is available");
 152                 showDialog(DIALOG_NO_ACCOUNT);
 153             } else if (accounts.length > 1 && !mAccountSelected) {
 154                 Log_OC.i(TAG, "More than one ownCloud is available");
 155                 showDialog(DIALOG_MULTIPLE_ACCOUNT);
 156             } else {
 157                 if (!savedAccount) {
 158                     setAccount(accounts[0]);
 159                 }
 160             }
 161
 162         } else {
 163             showDialog(DIALOG_NO_STREAM);
 164         }
 165
 166         super.setAccount(account, savedAccount);
 167     }
 168
 169     @Override
 170     protected void onAccountSet(boolean stateWasRecovered) {
 171         super.onAccountSet(mAccountWasRestored);
 172         initTargetFolder();
 173         populateDirectoryList();
 174     }
 175
 176     @Override
 177     protected void onSaveInstanceState(Bundle outState) {
 178          Log_OC.d(TAG, "onSaveInstanceState() start");
 179         super.onSaveInstanceState(outState);
 180         outState.putSerializable(KEY_PARENTS, mParents);
 181         //outState.putParcelable(KEY_ACCOUNT, mAccount);
 182         outState.putParcelable(KEY_FILE, mFile);
 183         outState.putBoolean(KEY_ACCOUNT_SELECTED, mAccountSelected);
 184         outState.putInt(KEY_NUM_CACHE_FILE, mNumCacheFile);
 185         outState.putStringArrayList(KEY_REMOTE_CACHE_DATA, mRemoteCacheData);
 186
 187         Log_OC.d(TAG, "onSaveInstanceState() end");
 188     }
 189
 190     @Override
 191     protected Dialog onCreateDialog(final int id) {
 192         final AlertDialog.Builder builder = new Builder(this);
 193         switch (id) {
 194         case DIALOG_WAITING:
 195             ProgressDialog pDialog = new ProgressDialog(this);
 196             pDialog.setIndeterminate(false);
 197             pDialog.setCancelable(false);
 198             pDialog.setMessage(getResources().getString(R.string.uploader_info_uploading));
 199             return pDialog;
 200         case DIALOG_NO_ACCOUNT:
 201             builder.setIcon(android.R.drawable.ic_dialog_alert);
 202             builder.setTitle(R.string.uploader_wrn_no_account_title);
 203             builder.setMessage(String.format(
 204                     getString(R.string.uploader_wrn_no_account_text), getString(R.string.app_name)));
 205             builder.setCancelable(false);
 206             builder.setPositiveButton(R.string.uploader_wrn_no_account_setup_btn_text, new OnClickListener() {
 207                 @Override
 208                 public void onClick(DialogInterface dialog, int which) {
 209                     if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.ECLAIR_MR1) {
 210                         // using string value since in API7 this
 211                         // constatn is not defined
 212                         // in API7 < this constatant is defined in
 213                         // Settings.ADD_ACCOUNT_SETTINGS
 214                         // and Settings.EXTRA_AUTHORITIES
 215                         Intent intent = new Intent(android.provider.Settings.ACTION_ADD_ACCOUNT);
 216                         intent.putExtra("authorities", new String[] { MainApp.getAuthTokenType() });
 217                         startActivityForResult(intent, REQUEST_CODE_SETUP_ACCOUNT);
 218                     } else {
 219                         // since in API7 there is no direct call for
 220                         // account setup, so we need to
 221                         // show our own AccountSetupAcricity, get
 222                         // desired results and setup
 223                         // everything for ourself
 224                         Intent intent = new Intent(getBaseContext(), AccountAuthenticator.class);
 225                         startActivityForResult(intent, REQUEST_CODE_SETUP_ACCOUNT);
 226                     }
 227                 }
 228             });
 229             builder.setNegativeButton(R.string.uploader_wrn_no_account_quit_btn_text, new OnClickListener() {
 230                 @Override
 231                 public void onClick(DialogInterface dialog, int which) {
 232                     finish();
 233                 }
 234             });
 235             return builder.create();
 236         case DIALOG_MULTIPLE_ACCOUNT:
 237             CharSequence ac[] = new CharSequence[
 238                     mAccountManager.getAccountsByType(MainApp.getAccountType()).length];
 239             for (int i = 0; i < ac.length; ++i) {
 240                 ac[i] = DisplayUtils.convertIdn(
 241                         mAccountManager.getAccountsByType(MainApp.getAccountType())[i].name, false);
 242             }
 243             builder.setTitle(R.string.common_choose_account);
 244             builder.setItems(ac, new OnClickListener() {
 245                 @Override
 246                 public void onClick(DialogInterface dialog, int which) {
 247                     setAccount(mAccountManager.getAccountsByType(MainApp.getAccountType())[which]);
 248                     onAccountSet(mAccountWasRestored);
 249                     dialog.dismiss();
 250                     mAccountSelected = true;
 251                 }
 252             });
 253             builder.setCancelable(true);
 254             builder.setOnCancelListener(new OnCancelListener() {
 255                 @Override
 256                 public void onCancel(DialogInterface dialog) {
 257                     dialog.cancel();
 258                     finish();
 259                 }
 260             });
 261             return builder.create();
 262         case DIALOG_NO_STREAM:
 263             builder.setIcon(android.R.drawable.ic_dialog_alert);
 264             builder.setTitle(R.string.uploader_wrn_no_content_title);
 265             builder.setMessage(R.string.uploader_wrn_no_content_text);
 266             builder.setCancelable(false);
 267             builder.setNegativeButton(R.string.common_cancel, new OnClickListener() {
 268                 @Override
 269                 public void onClick(DialogInterface dialog, int which) {
 270                     finish();
 271                 }
 272             });
 273             return builder.create();
 274         default:
 275             throw new IllegalArgumentException("Unknown dialog id: " + id);
 276         }
 277     }
 278
 279     class a implements OnClickListener {
 280         String mPath;
 281         EditText mDirname;
 282
 283         public a(String path, EditText dirname) {
 284             mPath = path;
 285             mDirname = dirname;
 286         }
 287
 288         @Override
 289         public void onClick(DialogInterface dialog, int which) {
 290             Uploader.this.mUploadPath = mPath + mDirname.getText().toString();
 291             Uploader.this.mCreateDir = true;
 292             uploadFiles();
 293         }
 294     }
 295
 296     @Override
 297     public void onBackPressed() {
 298
 299         if (mParents.size() <= 1) {
 300             super.onBackPressed();
 301             return;
 302         } else {
 303             mParents.pop();
 304             populateDirectoryList();
 305         }
 306     }
 307
 308     @Override
 309     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
 310         // click on folder in the list
 311         Log_OC.d(TAG, "on item click");
 312         Vector<OCFile> tmpfiles = getStorageManager().getFolderContent(mFile);
 313         if (tmpfiles.size() <= 0) return;
 314         // filter on dirtype
 315         Vector<OCFile> files = new Vector<OCFile>();
 316         for (OCFile f : tmpfiles)
 317             if (f.isFolder())
 318                 files.add(f);
 319         if (files.size() < position) {
 320             throw new IndexOutOfBoundsException("Incorrect item selected");
 321         }
 322         mParents.push(files.get(position).getFileName());
 323         populateDirectoryList();
 324     }
 325
 326     @Override
 327     public void onClick(View v) {
 328         // click on button
 329         switch (v.getId()) {
 330         case R.id.uploader_choose_folder:
 331             mUploadPath = "";   // first element in mParents is root dir, represented by "";
 332                                 // init mUploadPath with "/" results in a "//" prefix
 333             for (String p : mParents)
 334                 mUploadPath += p + OCFile.PATH_SEPARATOR;
 335             Log_OC.d(TAG, "Uploading file to dir " + mUploadPath);
 336
 337             uploadFiles();
 338
 339             break;
 340
 341         case R.id.uploader_new_folder:
 342             CreateFolderDialogFragment dialog = CreateFolderDialogFragment.newInstance(mFile);
 343             dialog.show(getSupportFragmentManager(), "createdirdialog");
 344             break;
 345
 346
 347         default:
 348             throw new IllegalArgumentException("Wrong element clicked");
 349         }
 350     }
 351
 352     @Override
 353     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 354         super.onActivityResult(requestCode, resultCode, data);
 355         Log_OC.i(TAG, "result received. req: " + requestCode + " res: " + resultCode);
 356         if (requestCode == REQUEST_CODE_SETUP_ACCOUNT) {
 357             dismissDialog(DIALOG_NO_ACCOUNT);
 358             if (resultCode == RESULT_CANCELED) {
 359                 finish();
 360             }
 361             Account[] accounts = mAccountManager.getAccountsByType(MainApp.getAuthTokenType());
 362             if (accounts.length == 0) {
 363                 showDialog(DIALOG_NO_ACCOUNT);
 364             } else {
 365                 // there is no need for checking for is there more then one
 366                 // account at this point
 367                 // since account setup can set only one account at time
 368                 setAccount(accounts[0]);
 369                 populateDirectoryList();
 370             }
 371         }
 372     }
 373
 374     private void populateDirectoryList() {
 375         setContentView(R.layout.uploader_layout);
 376
 377         ListView mListView = (ListView) findViewById(android.R.id.list);
 378
 379         String current_dir = mParents.peek();
 380         if(current_dir.equals("")){
 381             getSupportActionBar().setTitle(getString(R.string.default_display_name_for_root_folder));
 382         }
 383         else{
 384             getSupportActionBar().setTitle(current_dir);
 385         }
 386         boolean notRoot = (mParents.size() > 1);
 387         ActionBar actionBar = getSupportActionBar();
 388         actionBar.setDisplayHomeAsUpEnabled(notRoot);
 389         actionBar.setHomeButtonEnabled(notRoot);
 390
 391         String full_path = generatePath(mParents);
 392
 393         Log_OC.d(TAG, "Populating view with content of : " + full_path);
 394
 395         mFile = getStorageManager().getFileByPath(full_path);
 396         if (mFile != null) {
 397             Vector<OCFile> files = getStorageManager().getFolderContent(mFile);
 398             List<HashMap<String, Object>> data = new LinkedList<HashMap<String,Object>>();
 399             for (OCFile f : files) {
 400                 HashMap<String, Object> h = new HashMap<String, Object>();
 401                 if (f.isFolder()) {
 402                     h.put("dirname", f.getFileName());
 403                     data.add(h);
 404                 }
 405             }
 406             SimpleAdapter sa = new SimpleAdapter(this,
 407                                                 data,
 408                                                 R.layout.uploader_list_item_layout,
 409                                                 new String[] {"dirname"},
 410                                                 new int[] {R.id.textView1});
 411
 412             mListView.setAdapter(sa);
 413             Button btnChooseFolder = (Button) findViewById(R.id.uploader_choose_folder);
 414             btnChooseFolder.setOnClickListener(this);
 415
 416             Button btnNewFolder = (Button) findViewById(R.id.uploader_new_folder);
 417             btnNewFolder.setOnClickListener(this);
 418
 419             mListView.setOnItemClickListener(this);
 420         }
 421     }
 422
 423     private String generatePath(Stack<String> dirs) {
 424         String full_path = "";
 425
 426         for (String a : dirs)
 427             full_path += a + "/";
 428         return full_path;
 429     }
 430
 431     private void prepareStreamsToUpload() {
 432         if (getIntent().getAction().equals(Intent.ACTION_SEND)) {
 433             mStreamsToUpload = new ArrayList<Parcelable>();
 434             mStreamsToUpload.add(getIntent().getParcelableExtra(Intent.EXTRA_STREAM));
 435         } else if (getIntent().getAction().equals(Intent.ACTION_SEND_MULTIPLE)) {
 436             mStreamsToUpload = getIntent().getParcelableArrayListExtra(Intent.EXTRA_STREAM);
 437         }
 438     }
 439
 440     private boolean somethingToUpload() {
 441         return (mStreamsToUpload != null && mStreamsToUpload.get(0) != null);
 442     }
 443
 444     public void uploadFiles() {
 445         try {
 446
 447             // ArrayList for files with path in external storage
 448             ArrayList<String> local = new ArrayList<String>();
 449             ArrayList<String> remote = new ArrayList<String>();
 450
 451             // this checks the mimeType
 452             for (Parcelable mStream : mStreamsToUpload) {
 453
 454                 Uri uri = (Uri) mStream;
 455                 String data = null;
 456                 String filePath = "";
 457
 458                 if (uri != null) {
 459                     if (uri.getScheme().equals("content")) {
 460                         String mimeType = getContentResolver().getType(uri);
 461
 462                         if (mimeType.contains("image")) {
 463                             String[] CONTENT_PROJECTION = { Images.Media.DATA,
 464                                     Images.Media.DISPLAY_NAME, Images.Media.MIME_TYPE,
 465                                     Images.Media.SIZE };
 466                             Cursor c = getContentResolver().query(uri, CONTENT_PROJECTION, null,
 467                                     null, null);
 468                             c.moveToFirst();
 469                             int index = c.getColumnIndex(Images.Media.DATA);
 470                             data = c.getString(index);
 471                             filePath = mUploadPath +
 472                                     c.getString(c.getColumnIndex(Images.Media.DISPLAY_NAME));
 473
 474                         } else if (mimeType.contains("video")) {
 475                             String[] CONTENT_PROJECTION = { Video.Media.DATA,
 476                                    Video.Media.DISPLAY_NAME, Video.Media.MIME_TYPE,
 477                                    Video.Media.SIZE, Video.Media.DATE_MODIFIED };
 478                             Cursor c = getContentResolver().query(uri, CONTENT_PROJECTION, null,
 479                                    null, null);
 480                             c.moveToFirst();
 481                             int index = c.getColumnIndex(Video.Media.DATA);
 482                             data = c.getString(index);
 483                             filePath = mUploadPath +
 484                                    c.getString(c.getColumnIndex(Video.Media.DISPLAY_NAME));
 485
 486                         } else if (mimeType.contains("audio")) {
 487                             String[] CONTENT_PROJECTION = { Audio.Media.DATA,
 488                                    Audio.Media.DISPLAY_NAME, Audio.Media.MIME_TYPE,
 489                                    Audio.Media.SIZE };
 490                             Cursor c = getContentResolver().query(uri, CONTENT_PROJECTION, null,
 491                                    null, null);
 492                             c.moveToFirst();
 493                             int index = c.getColumnIndex(Audio.Media.DATA);
 494                             data = c.getString(index);
 495                             filePath = mUploadPath +
 496                                    c.getString(c.getColumnIndex(Audio.Media.DISPLAY_NAME));
 497
 498                         } else  {
 499                             Cursor cursor = getContentResolver().query(uri,
 500                                    new String[]{MediaStore.MediaColumns.DISPLAY_NAME},
 501                                    null, null, null);
 502                             cursor.moveToFirst();
 503                             int nameIndex = cursor.getColumnIndex(cursor.getColumnNames()[0]);
 504                             if (nameIndex >= 0) {
 505                                filePath = mUploadPath + cursor.getString(nameIndex);
 506                             }
 507                         }
 508
 509                     } else if (uri.getScheme().equals("file")) {
 510                         filePath = Uri.decode(uri.toString()).replace(uri.getScheme() +
 511                                 "://", "");
 512                         if (filePath.contains("mnt")) {
 513                            String splitedFilePath[] = filePath.split("/mnt");
 514                            filePath = splitedFilePath[1];
 515                         }
 516                         final File file = new File(filePath);
 517                         data = file.getAbsolutePath();
 518                         filePath = mUploadPath + file.getName();
 519                     }
 520                     else {
 521                         throw new SecurityException();
 522                     }
 523                     if (data == null) {
 524                         mRemoteCacheData.add(filePath);
 525                         CopyTmpFileAsyncTask copyTask = new CopyTmpFileAsyncTask(this);
 526                         Object[] params = { uri, filePath, mRemoteCacheData.size()-1 };
 527                         mNumCacheFile++;
 528                         showWaitingCopyDialog();
 529                         copyTask.execute(params);
 530                     } else {
 531                         remote.add(filePath);
 532                         local.add(data);
 533                     }
 534                 }
 535                 else {
 536                     throw new SecurityException();
 537                 }
 538
 539                 Intent intent = new Intent(getApplicationContext(), FileUploader.class);
 540                 intent.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_MULTIPLE_FILES);
 541                 intent.putExtra(FileUploader.KEY_LOCAL_FILE, local.toArray(new String[local.size()]));
 542                 intent.putExtra(FileUploader.KEY_REMOTE_FILE,
 543                         remote.toArray(new String[remote.size()]));
 544                 intent.putExtra(FileUploader.KEY_ACCOUNT, getAccount());
 545                 startService(intent);
 546
 547                 //Save the path to shared preferences
 548                 SharedPreferences.Editor appPrefs = PreferenceManager
 549                         .getDefaultSharedPreferences(getApplicationContext()).edit();
 550                 appPrefs.putString("last_upload_path", mUploadPath);
 551                 appPrefs.apply();
 552
 553                 finish();
 554             }
 555
 556         } catch (SecurityException e) {
 557             String message = String.format(getString(R.string.uploader_error_forbidden_content),
 558                     getString(R.string.app_name));
 559             Toast.makeText(this, message, Toast.LENGTH_LONG).show();
 560         }
 561     }
 562
 563     @Override
 564     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 565         super.onRemoteOperationFinish(operation, result);
 566
 567
 568         if (operation instanceof CreateFolderOperation) {
 569             onCreateFolderOperationFinish((CreateFolderOperation)operation, result);
 570         }
 571
 572     }
 573
 574     /**
 575      * Updates the view associated to the activity after the finish of an operation
 576      * trying create a new folder
 577      *
 578      * @param operation     Creation operation performed.
 579      * @param result        Result of the creation.
 580      */
 581     private void onCreateFolderOperationFinish(CreateFolderOperation operation,
 582                                                RemoteOperationResult result) {
 583         if (result.isSuccess()) {
 584             dismissLoadingDialog();
 585             populateDirectoryList();
 586         } else {
 587             dismissLoadingDialog();
 588             try {
 589                 Toast msg = Toast.makeText(this,
 590                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
 591                         Toast.LENGTH_LONG);
 592                 msg.show();
 593
 594             } catch (NotFoundException e) {
 595                 Log_OC.e(TAG, "Error while trying to show fail message " , e);
 596             }
 597         }
 598     }
 599
 600
 601     /**
 602      *  Loads the target folder initialize shown to the user.
 603      *
 604      *  The target account has to be chosen before this method is called.
 605      */
 606     private void initTargetFolder() {
 607         if (getStorageManager() == null) {
 608             throw new IllegalStateException("Do not call this method before " +
 609                     "initializing mStorageManager");
 610         }
 611
 612         SharedPreferences appPreferences = PreferenceManager
 613                 .getDefaultSharedPreferences(getApplicationContext());
 614
 615         String last_path = appPreferences.getString("last_upload_path", "");
 616         // "/" equals root-directory
 617         if(last_path.equals("/")) {
 618             mParents.add("");
 619         } else{
 620             String[] dir_names = last_path.split("/");
 621             for (String dir : dir_names)
 622                 mParents.add(dir);
 623         }
 624         //Make sure that path still exists, if it doesn't pop the stack and try the previous path
 625         while(!getStorageManager().fileExists(generatePath(mParents)) && mParents.size() > 1){
 626             mParents.pop();
 627         }
 628     }
 629
 630
 631     @Override
 632     public boolean onOptionsItemSelected(MenuItem item) {
 633         boolean retval = true;
 634         switch (item.getItemId()) {
 635             case android.R.id.home:
 636                 if((mParents.size() > 1)) {
 637                     onBackPressed();
 638                 }
 639                 break;
 640
 641             default:
 642                 retval = super.onOptionsItemSelected(item);
 643         }
 644         return retval;
 645     }
 646
 647
 648     /**
 649      * Process the result of CopyTmpFileAsyncTask
 650      * @param result
 651      * @param index
 652      */
 653     @Override
 654     public void OnCopyTmpFileTaskListener(String result, int index) {
 655         if (mNumCacheFile -- == 0) {
 656             dismissWaitingCopyDialog();
 657         }
 658         if (result != null) {
 659             Intent intent = new Intent(getApplicationContext(), FileUploader.class);
 660             intent.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_SINGLE_FILE);
 661             intent.putExtra(FileUploader.KEY_LOCAL_FILE, result);
 662             intent.putExtra(FileUploader.KEY_REMOTE_FILE, mRemoteCacheData.get(index));
 663             intent.putExtra(FileUploader.KEY_ACCOUNT, getAccount());
 664             startService(intent);
 665
 666         } else {
 667             String message = String.format(getString(R.string.uploader_error_forbidden_content),
 668                     getString(R.string.app_name));
 669             Toast.makeText(this, message, Toast.LENGTH_LONG).show();
 670             Log_OC.d(TAG, message );
 671         }
 672
 673     }
 674 /**
 675      * Show waiting for copy dialog
 676      */
 677     public void showWaitingCopyDialog() {
 678         // Construct dialog
 679         LoadingDialog loading = new LoadingDialog(
 680                 getResources().getString(R.string.wait_for_tmp_copy_from_private_storage));
 681         FragmentManager fm = getSupportFragmentManager();
 682         FragmentTransaction ft = fm.beginTransaction();
 683         loading.show(ft, DIALOG_WAIT_COPY_FILE);
 684
 685     }
 686
 687
 688     /**
 689      * Dismiss waiting for copy dialog
 690      */
 691     public void dismissWaitingCopyDialog(){
 692         Fragment frag = getSupportFragmentManager().findFragmentByTag(DIALOG_WAIT_COPY_FILE);
 693         if (frag != null) {
 694             LoadingDialog loading = (LoadingDialog) frag;
 695             loading.dismiss();
 696         }
 697     }
 698 }