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
 139         super.onCreate(savedInstanceState);
 140
 141         if (mAccountSelected) {
 142             setAccount((Account) savedInstanceState.getParcelable(FileActivity.EXTRA_ACCOUNT));
 143         }
 144
 145
 146         ActionBar actionBar = getSupportActionBar();
 147         actionBar.setIcon(DisplayUtils.getSeasonalIconId());
 148
 149     }
 150
 151     @Override
 152     protected void setAccount(Account account, boolean savedAccount) {
 153         if (somethingToUpload()) {
 154             mAccountManager = (AccountManager) getSystemService(Context.ACCOUNT_SERVICE);
 155             Account[] accounts = mAccountManager.getAccountsByType(MainApp.getAccountType());
 156             if (accounts.length == 0) {
 157                 Log_OC.i(TAG, "No ownCloud account is available");
 158                 showDialog(DIALOG_NO_ACCOUNT);
 159             } else if (accounts.length > 1 && !mAccountSelected) {
 160                 Log_OC.i(TAG, "More than one ownCloud is available");
 161                 showDialog(DIALOG_MULTIPLE_ACCOUNT);
 162             } else {
 163                 if (!savedAccount) {
 164                     setAccount(accounts[0]);
 165                 }
 166             }
 167
 168         } else {
 169             showDialog(DIALOG_NO_STREAM);
 170         }
 171
 172         super.setAccount(account, savedAccount);
 173     }
 174
 175     @Override
 176     protected void onAccountSet(boolean stateWasRecovered) {
 177         super.onAccountSet(mAccountWasRestored);
 178         initTargetFolder();
 179         populateDirectoryList();
 180     }
 181
 182     @Override
 183     protected void onSaveInstanceState(Bundle outState) {
 184          Log_OC.d(TAG, "onSaveInstanceState() start");
 185         super.onSaveInstanceState(outState);
 186         outState.putSerializable(KEY_PARENTS, mParents);
 187         //outState.putParcelable(KEY_ACCOUNT, mAccount);
 188         outState.putParcelable(KEY_FILE, mFile);
 189         outState.putBoolean(KEY_ACCOUNT_SELECTED, mAccountSelected);
 190         outState.putInt(KEY_NUM_CACHE_FILE, mNumCacheFile);
 191         outState.putStringArrayList(KEY_REMOTE_CACHE_DATA, mRemoteCacheData);
 192         outState.putParcelable(FileActivity.EXTRA_ACCOUNT, getAccount());
 193
 194         Log_OC.d(TAG, "onSaveInstanceState() end");
 195     }
 196
 197     @Override
 198     protected Dialog onCreateDialog(final int id) {
 199         final AlertDialog.Builder builder = new Builder(this);
 200         switch (id) {
 201         case DIALOG_WAITING:
 202             ProgressDialog pDialog = new ProgressDialog(this);
 203             pDialog.setIndeterminate(false);
 204             pDialog.setCancelable(false);
 205             pDialog.setMessage(getResources().getString(R.string.uploader_info_uploading));
 206             return pDialog;
 207         case DIALOG_NO_ACCOUNT:
 208             builder.setIcon(android.R.drawable.ic_dialog_alert);
 209             builder.setTitle(R.string.uploader_wrn_no_account_title);
 210             builder.setMessage(String.format(
 211                     getString(R.string.uploader_wrn_no_account_text), getString(R.string.app_name)));
 212             builder.setCancelable(false);
 213             builder.setPositiveButton(R.string.uploader_wrn_no_account_setup_btn_text, new OnClickListener() {
 214                 @Override
 215                 public void onClick(DialogInterface dialog, int which) {
 216                     if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.ECLAIR_MR1) {
 217                         // using string value since in API7 this
 218                         // constatn is not defined
 219                         // in API7 < this constatant is defined in
 220                         // Settings.ADD_ACCOUNT_SETTINGS
 221                         // and Settings.EXTRA_AUTHORITIES
 222                         Intent intent = new Intent(android.provider.Settings.ACTION_ADD_ACCOUNT);
 223                         intent.putExtra("authorities", new String[] { MainApp.getAuthTokenType() });
 224                         startActivityForResult(intent, REQUEST_CODE_SETUP_ACCOUNT);
 225                     } else {
 226                         // since in API7 there is no direct call for
 227                         // account setup, so we need to
 228                         // show our own AccountSetupAcricity, get
 229                         // desired results and setup
 230                         // everything for ourself
 231                         Intent intent = new Intent(getBaseContext(), AccountAuthenticator.class);
 232                         startActivityForResult(intent, REQUEST_CODE_SETUP_ACCOUNT);
 233                     }
 234                 }
 235             });
 236             builder.setNegativeButton(R.string.uploader_wrn_no_account_quit_btn_text, new OnClickListener() {
 237                 @Override
 238                 public void onClick(DialogInterface dialog, int which) {
 239                     finish();
 240                 }
 241             });
 242             return builder.create();
 243         case DIALOG_MULTIPLE_ACCOUNT:
 244             CharSequence ac[] = new CharSequence[
 245                     mAccountManager.getAccountsByType(MainApp.getAccountType()).length];
 246             for (int i = 0; i < ac.length; ++i) {
 247                 ac[i] = DisplayUtils.convertIdn(
 248                         mAccountManager.getAccountsByType(MainApp.getAccountType())[i].name, false);
 249             }
 250             builder.setTitle(R.string.common_choose_account);
 251             builder.setItems(ac, new OnClickListener() {
 252                 @Override
 253                 public void onClick(DialogInterface dialog, int which) {
 254                     setAccount(mAccountManager.getAccountsByType(MainApp.getAccountType())[which]);
 255                     onAccountSet(mAccountWasRestored);
 256                     dialog.dismiss();
 257                     mAccountSelected = true;
 258                 }
 259             });
 260             builder.setCancelable(true);
 261             builder.setOnCancelListener(new OnCancelListener() {
 262                 @Override
 263                 public void onCancel(DialogInterface dialog) {
 264                     dialog.cancel();
 265                     finish();
 266                 }
 267             });
 268             return builder.create();
 269         case DIALOG_NO_STREAM:
 270             builder.setIcon(android.R.drawable.ic_dialog_alert);
 271             builder.setTitle(R.string.uploader_wrn_no_content_title);
 272             builder.setMessage(R.string.uploader_wrn_no_content_text);
 273             builder.setCancelable(false);
 274             builder.setNegativeButton(R.string.common_cancel, new OnClickListener() {
 275                 @Override
 276                 public void onClick(DialogInterface dialog, int which) {
 277                     finish();
 278                 }
 279             });
 280             return builder.create();
 281         default:
 282             throw new IllegalArgumentException("Unknown dialog id: " + id);
 283         }
 284     }
 285
 286     class a implements OnClickListener {
 287         String mPath;
 288         EditText mDirname;
 289
 290         public a(String path, EditText dirname) {
 291             mPath = path;
 292             mDirname = dirname;
 293         }
 294
 295         @Override
 296         public void onClick(DialogInterface dialog, int which) {
 297             Uploader.this.mUploadPath = mPath + mDirname.getText().toString();
 298             Uploader.this.mCreateDir = true;
 299             uploadFiles();
 300         }
 301     }
 302
 303     @Override
 304     public void onBackPressed() {
 305
 306         if (mParents.size() <= 1) {
 307             super.onBackPressed();
 308             return;
 309         } else {
 310             mParents.pop();
 311             populateDirectoryList();
 312         }
 313     }
 314
 315     @Override
 316     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
 317         // click on folder in the list
 318         Log_OC.d(TAG, "on item click");
 319         Vector<OCFile> tmpfiles = getStorageManager().getFolderContent(mFile);
 320         if (tmpfiles.size() <= 0) return;
 321         // filter on dirtype
 322         Vector<OCFile> files = new Vector<OCFile>();
 323         for (OCFile f : tmpfiles)
 324             if (f.isFolder())
 325                 files.add(f);
 326         if (files.size() < position) {
 327             throw new IndexOutOfBoundsException("Incorrect item selected");
 328         }
 329         mParents.push(files.get(position).getFileName());
 330         populateDirectoryList();
 331     }
 332
 333     @Override
 334     public void onClick(View v) {
 335         // click on button
 336         switch (v.getId()) {
 337         case R.id.uploader_choose_folder:
 338             mUploadPath = "";   // first element in mParents is root dir, represented by "";
 339                                 // init mUploadPath with "/" results in a "//" prefix
 340             for (String p : mParents)
 341                 mUploadPath += p + OCFile.PATH_SEPARATOR;
 342             Log_OC.d(TAG, "Uploading file to dir " + mUploadPath);
 343
 344             uploadFiles();
 345
 346             break;
 347
 348         case R.id.uploader_new_folder:
 349             CreateFolderDialogFragment dialog = CreateFolderDialogFragment.newInstance(mFile);
 350             dialog.show(getSupportFragmentManager(), "createdirdialog");
 351             break;
 352
 353
 354         default:
 355             throw new IllegalArgumentException("Wrong element clicked");
 356         }
 357     }
 358
 359     @Override
 360     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 361         super.onActivityResult(requestCode, resultCode, data);
 362         Log_OC.i(TAG, "result received. req: " + requestCode + " res: " + resultCode);
 363         if (requestCode == REQUEST_CODE_SETUP_ACCOUNT) {
 364             dismissDialog(DIALOG_NO_ACCOUNT);
 365             if (resultCode == RESULT_CANCELED) {
 366                 finish();
 367             }
 368             Account[] accounts = mAccountManager.getAccountsByType(MainApp.getAuthTokenType());
 369             if (accounts.length == 0) {
 370                 showDialog(DIALOG_NO_ACCOUNT);
 371             } else {
 372                 // there is no need for checking for is there more then one
 373                 // account at this point
 374                 // since account setup can set only one account at time
 375                 setAccount(accounts[0]);
 376                 populateDirectoryList();
 377             }
 378         }
 379     }
 380
 381     private void populateDirectoryList() {
 382         setContentView(R.layout.uploader_layout);
 383
 384         ListView mListView = (ListView) findViewById(android.R.id.list);
 385
 386         String current_dir = mParents.peek();
 387         if(current_dir.equals("")){
 388             getSupportActionBar().setTitle(getString(R.string.default_display_name_for_root_folder));
 389         }
 390         else{
 391             getSupportActionBar().setTitle(current_dir);
 392         }
 393         boolean notRoot = (mParents.size() > 1);
 394         ActionBar actionBar = getSupportActionBar();
 395         actionBar.setDisplayHomeAsUpEnabled(notRoot);
 396         actionBar.setHomeButtonEnabled(notRoot);
 397
 398         String full_path = generatePath(mParents);
 399
 400         Log_OC.d(TAG, "Populating view with content of : " + full_path);
 401
 402         mFile = getStorageManager().getFileByPath(full_path);
 403         if (mFile != null) {
 404             Vector<OCFile> files = getStorageManager().getFolderContent(mFile);
 405             List<HashMap<String, Object>> data = new LinkedList<HashMap<String,Object>>();
 406             for (OCFile f : files) {
 407                 HashMap<String, Object> h = new HashMap<String, Object>();
 408                 if (f.isFolder()) {
 409                     h.put("dirname", f.getFileName());
 410                     data.add(h);
 411                 }
 412             }
 413             SimpleAdapter sa = new SimpleAdapter(this,
 414                                                 data,
 415                                                 R.layout.uploader_list_item_layout,
 416                                                 new String[] {"dirname"},
 417                                                 new int[] {R.id.textView1});
 418
 419             mListView.setAdapter(sa);
 420             Button btnChooseFolder = (Button) findViewById(R.id.uploader_choose_folder);
 421             btnChooseFolder.setOnClickListener(this);
 422
 423             Button btnNewFolder = (Button) findViewById(R.id.uploader_new_folder);
 424             btnNewFolder.setOnClickListener(this);
 425
 426             mListView.setOnItemClickListener(this);
 427         }
 428     }
 429
 430     private String generatePath(Stack<String> dirs) {
 431         String full_path = "";
 432
 433         for (String a : dirs)
 434             full_path += a + "/";
 435         return full_path;
 436     }
 437
 438     private void prepareStreamsToUpload() {
 439         if (getIntent().getAction().equals(Intent.ACTION_SEND)) {
 440             mStreamsToUpload = new ArrayList<Parcelable>();
 441             mStreamsToUpload.add(getIntent().getParcelableExtra(Intent.EXTRA_STREAM));
 442         } else if (getIntent().getAction().equals(Intent.ACTION_SEND_MULTIPLE)) {
 443             mStreamsToUpload = getIntent().getParcelableArrayListExtra(Intent.EXTRA_STREAM);
 444         }
 445     }
 446
 447     private boolean somethingToUpload() {
 448         return (mStreamsToUpload != null && mStreamsToUpload.get(0) != null);
 449     }
 450
 451     public void uploadFiles() {
 452         try {
 453
 454             // ArrayList for files with path in external storage
 455             ArrayList<String> local = new ArrayList<String>();
 456             ArrayList<String> remote = new ArrayList<String>();
 457
 458             // this checks the mimeType
 459             for (Parcelable mStream : mStreamsToUpload) {
 460
 461                 Uri uri = (Uri) mStream;
 462                 String data = null;
 463                 String filePath = "";
 464
 465                 if (uri != null) {
 466                     if (uri.getScheme().equals("content")) {
 467                         String mimeType = getContentResolver().getType(uri);
 468
 469                         if (mimeType.contains("image")) {
 470                             String[] CONTENT_PROJECTION = { Images.Media.DATA,
 471                                     Images.Media.DISPLAY_NAME, Images.Media.MIME_TYPE,
 472                                     Images.Media.SIZE };
 473                             Cursor c = getContentResolver().query(uri, CONTENT_PROJECTION, null,
 474                                     null, null);
 475                             c.moveToFirst();
 476                             int index = c.getColumnIndex(Images.Media.DATA);
 477                             data = c.getString(index);
 478                             filePath = mUploadPath +
 479                                     c.getString(c.getColumnIndex(Images.Media.DISPLAY_NAME));
 480
 481                         } else if (mimeType.contains("video")) {
 482                             String[] CONTENT_PROJECTION = { Video.Media.DATA,
 483                                    Video.Media.DISPLAY_NAME, Video.Media.MIME_TYPE,
 484                                    Video.Media.SIZE, Video.Media.DATE_MODIFIED };
 485                             Cursor c = getContentResolver().query(uri, CONTENT_PROJECTION, null,
 486                                    null, null);
 487                             c.moveToFirst();
 488                             int index = c.getColumnIndex(Video.Media.DATA);
 489                             data = c.getString(index);
 490                             filePath = mUploadPath +
 491                                    c.getString(c.getColumnIndex(Video.Media.DISPLAY_NAME));
 492
 493                         } else if (mimeType.contains("audio")) {
 494                             String[] CONTENT_PROJECTION = { Audio.Media.DATA,
 495                                    Audio.Media.DISPLAY_NAME, Audio.Media.MIME_TYPE,
 496                                    Audio.Media.SIZE };
 497                             Cursor c = getContentResolver().query(uri, CONTENT_PROJECTION, null,
 498                                    null, null);
 499                             c.moveToFirst();
 500                             int index = c.getColumnIndex(Audio.Media.DATA);
 501                             data = c.getString(index);
 502                             filePath = mUploadPath +
 503                                    c.getString(c.getColumnIndex(Audio.Media.DISPLAY_NAME));
 504
 505                         } else  {
 506                             Cursor cursor = getContentResolver().query(uri,
 507                                    new String[]{MediaStore.MediaColumns.DISPLAY_NAME},
 508                                    null, null, null);
 509                             cursor.moveToFirst();
 510                             int nameIndex = cursor.getColumnIndex(cursor.getColumnNames()[0]);
 511                             if (nameIndex >= 0) {
 512                                filePath = mUploadPath + cursor.getString(nameIndex);
 513                             }
 514                         }
 515
 516                     } else if (uri.getScheme().equals("file")) {
 517                         filePath = Uri.decode(uri.toString()).replace(uri.getScheme() +
 518                                 "://", "");
 519                         if (filePath.contains("mnt")) {
 520                            String splitedFilePath[] = filePath.split("/mnt");
 521                            filePath = splitedFilePath[1];
 522                         }
 523                         final File file = new File(filePath);
 524                         data = file.getAbsolutePath();
 525                         filePath = mUploadPath + file.getName();
 526                     }
 527                     else {
 528                         throw new SecurityException();
 529                     }
 530                     if (data == null) {
 531                         mRemoteCacheData.add(filePath);
 532                         CopyTmpFileAsyncTask copyTask = new CopyTmpFileAsyncTask(this);
 533                         Object[] params = { uri, filePath, mRemoteCacheData.size()-1 };
 534                         mNumCacheFile++;
 535                         showWaitingCopyDialog();
 536                         copyTask.execute(params);
 537                     } else {
 538                         remote.add(filePath);
 539                         local.add(data);
 540                     }
 541                 }
 542                 else {
 543                     throw new SecurityException();
 544                 }
 545
 546                 Intent intent = new Intent(getApplicationContext(), FileUploader.class);
 547                 intent.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_MULTIPLE_FILES);
 548                 intent.putExtra(FileUploader.KEY_LOCAL_FILE, local.toArray(new String[local.size()]));
 549                 intent.putExtra(FileUploader.KEY_REMOTE_FILE,
 550                         remote.toArray(new String[remote.size()]));
 551                 intent.putExtra(FileUploader.KEY_ACCOUNT, getAccount());
 552                 startService(intent);
 553
 554                 //Save the path to shared preferences
 555                 SharedPreferences.Editor appPrefs = PreferenceManager
 556                         .getDefaultSharedPreferences(getApplicationContext()).edit();
 557                 appPrefs.putString("last_upload_path", mUploadPath);
 558                 appPrefs.apply();
 559
 560                 finish();
 561             }
 562
 563         } catch (SecurityException e) {
 564             String message = String.format(getString(R.string.uploader_error_forbidden_content),
 565                     getString(R.string.app_name));
 566             Toast.makeText(this, message, Toast.LENGTH_LONG).show();
 567         }
 568     }
 569
 570     @Override
 571     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 572         super.onRemoteOperationFinish(operation, result);
 573
 574
 575         if (operation instanceof CreateFolderOperation) {
 576             onCreateFolderOperationFinish((CreateFolderOperation)operation, result);
 577         }
 578
 579     }
 580
 581     /**
 582      * Updates the view associated to the activity after the finish of an operation
 583      * trying create a new folder
 584      *
 585      * @param operation     Creation operation performed.
 586      * @param result        Result of the creation.
 587      */
 588     private void onCreateFolderOperationFinish(CreateFolderOperation operation,
 589                                                RemoteOperationResult result) {
 590         if (result.isSuccess()) {
 591             dismissLoadingDialog();
 592             populateDirectoryList();
 593         } else {
 594             dismissLoadingDialog();
 595             try {
 596                 Toast msg = Toast.makeText(this,
 597                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
 598                         Toast.LENGTH_LONG);
 599                 msg.show();
 600
 601             } catch (NotFoundException e) {
 602                 Log_OC.e(TAG, "Error while trying to show fail message " , e);
 603             }
 604         }
 605     }
 606
 607
 608     /**
 609      *  Loads the target folder initialize shown to the user.
 610      *
 611      *  The target account has to be chosen before this method is called.
 612      */
 613     private void initTargetFolder() {
 614         if (getStorageManager() == null) {
 615             throw new IllegalStateException("Do not call this method before " +
 616                     "initializing mStorageManager");
 617         }
 618
 619         SharedPreferences appPreferences = PreferenceManager
 620                 .getDefaultSharedPreferences(getApplicationContext());
 621
 622         String last_path = appPreferences.getString("last_upload_path", "");
 623         // "/" equals root-directory
 624         if(last_path.equals("/")) {
 625             mParents.add("");
 626         } else{
 627             String[] dir_names = last_path.split("/");
 628             for (String dir : dir_names)
 629                 mParents.add(dir);
 630         }
 631         //Make sure that path still exists, if it doesn't pop the stack and try the previous path
 632         while(!getStorageManager().fileExists(generatePath(mParents)) && mParents.size() > 1){
 633             mParents.pop();
 634         }
 635     }
 636
 637
 638     @Override
 639     public boolean onOptionsItemSelected(MenuItem item) {
 640         boolean retval = true;
 641         switch (item.getItemId()) {
 642             case android.R.id.home:
 643                 if((mParents.size() > 1)) {
 644                     onBackPressed();
 645                 }
 646                 break;
 647
 648             default:
 649                 retval = super.onOptionsItemSelected(item);
 650         }
 651         return retval;
 652     }
 653
 654
 655     /**
 656      * Process the result of CopyTmpFileAsyncTask
 657      * @param result
 658      * @param index
 659      */
 660     @Override
 661     public void OnCopyTmpFileTaskListener(String result, int index) {
 662         if (mNumCacheFile -- == 0) {
 663             dismissWaitingCopyDialog();
 664         }
 665         if (result != null) {
 666             Intent intent = new Intent(getApplicationContext(), FileUploader.class);
 667             intent.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_SINGLE_FILE);
 668             intent.putExtra(FileUploader.KEY_LOCAL_FILE, result);
 669             intent.putExtra(FileUploader.KEY_REMOTE_FILE, mRemoteCacheData.get(index));
 670             intent.putExtra(FileUploader.KEY_ACCOUNT, getAccount());
 671             startService(intent);
 672
 673         } else {
 674             String message = String.format(getString(R.string.uploader_error_forbidden_content),
 675                     getString(R.string.app_name));
 676             Toast.makeText(this, message, Toast.LENGTH_LONG).show();
 677             Log_OC.d(TAG, message );
 678         }
 679
 680     }
 681 /**
 682      * Show waiting for copy dialog
 683      */
 684     public void showWaitingCopyDialog() {
 685         // Construct dialog
 686         LoadingDialog loading = new LoadingDialog(
 687                 getResources().getString(R.string.wait_for_tmp_copy_from_private_storage));
 688         FragmentManager fm = getSupportFragmentManager();
 689         FragmentTransaction ft = fm.beginTransaction();
 690         loading.show(ft, DIALOG_WAIT_COPY_FILE);
 691
 692     }
 693
 694
 695     /**
 696      * Dismiss waiting for copy dialog
 697      */
 698     public void dismissWaitingCopyDialog(){
 699         Fragment frag = getSupportFragmentManager().findFragmentByTag(DIALOG_WAIT_COPY_FILE);
 700         if (frag != null) {
 701             LoadingDialog loading = (LoadingDialog) frag;
 702             loading.dismiss();
 703         }
 704     }
 705 }