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