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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2014 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.ui.activity;
  20
  21 import android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.accounts.AuthenticatorException;
  24 import android.accounts.OperationCanceledException;
  25 import android.app.AlertDialog;
  26 import android.app.Dialog;
  27 import android.app.ProgressDialog;
  28 import android.content.BroadcastReceiver;
  29 import android.content.ComponentName;
  30 import android.content.ContentResolver;
  31 import android.content.ContentUris;
  32 import android.content.Context;
  33 import android.content.DialogInterface;
  34 import android.content.Intent;
  35 import android.content.IntentFilter;
  36 import android.content.ServiceConnection;
  37 import android.content.SharedPreferences;
  38 import android.content.SyncRequest;
  39 import android.content.res.Resources.NotFoundException;
  40 import android.database.Cursor;
  41 import android.net.Uri;
  42 import android.os.Build;
  43 import android.os.Bundle;
  44 import android.os.Environment;
  45 import android.os.IBinder;
  46 import android.preference.PreferenceManager;
  47 import android.provider.DocumentsContract;
  48 import android.provider.MediaStore;
  49 import android.provider.OpenableColumns;
  50 import android.support.v4.app.Fragment;
  51 import android.support.v4.app.FragmentManager;
  52 import android.support.v4.app.FragmentTransaction;
  53 import android.util.Log;
  54 import android.view.View;
  55 import android.view.ViewGroup;
  56 import android.widget.ArrayAdapter;
  57 import android.widget.TextView;
  58 import android.widget.Toast;
  59
  60 import com.actionbarsherlock.app.ActionBar;
  61 import com.actionbarsherlock.app.ActionBar.OnNavigationListener;
  62 import com.actionbarsherlock.view.Menu;
  63 import com.actionbarsherlock.view.MenuInflater;
  64 import com.actionbarsherlock.view.MenuItem;
  65 import com.actionbarsherlock.view.Window;
  66 import com.owncloud.android.BuildConfig;
  67 import com.owncloud.android.MainApp;
  68 import com.owncloud.android.R;
  69 import com.owncloud.android.datamodel.OCFile;
  70 import com.owncloud.android.files.services.FileDownloader;
  71 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  72 import com.owncloud.android.files.services.FileUploader;
  73 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  74 import com.owncloud.android.lib.common.OwnCloudAccount;
  75 import com.owncloud.android.lib.common.OwnCloudClient;
  76 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  77 import com.owncloud.android.lib.common.OwnCloudCredentials;
  78 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  79 import com.owncloud.android.lib.common.network.CertificateCombinedException;
  80 import com.owncloud.android.lib.common.operations.RemoteOperation;
  81 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  82 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  83 import com.owncloud.android.lib.common.utils.Log_OC;
  84 import com.owncloud.android.operations.CreateFolderOperation;
  85 import com.owncloud.android.operations.CreateShareOperation;
  86 import com.owncloud.android.operations.MoveFileOperation;
  87 import com.owncloud.android.operations.RemoveFileOperation;
  88 import com.owncloud.android.operations.RenameFileOperation;
  89 import com.owncloud.android.operations.SynchronizeFileOperation;
  90 import com.owncloud.android.operations.SynchronizeFolderOperation;
  91 import com.owncloud.android.operations.UnshareLinkOperation;
  92 import com.owncloud.android.services.observer.FileObserverService;
  93 import com.owncloud.android.syncadapter.FileSyncAdapter;
  94 import com.owncloud.android.ui.adapter.FileListListAdapter;
  95 import com.owncloud.android.ui.dialog.CreateFolderDialogFragment;
  96 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog;
  97 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog.OnSslUntrustedCertListener;
  98 import com.owncloud.android.ui.fragment.FileDetailFragment;
  99 import com.owncloud.android.ui.fragment.FileFragment;
 100 import com.owncloud.android.ui.fragment.OCFileListFragment;
 101 import com.owncloud.android.ui.preview.PreviewImageActivity;
 102 import com.owncloud.android.ui.preview.PreviewImageFragment;
 103 import com.owncloud.android.ui.preview.PreviewMediaFragment;
 104 import com.owncloud.android.ui.preview.PreviewTextFragment;
 105 import com.owncloud.android.ui.preview.PreviewVideoActivity;
 106 import com.owncloud.android.utils.DisplayUtils;
 107 import com.owncloud.android.utils.ErrorMessageAdapter;
 108 import com.owncloud.android.utils.UriUtils;
 109
 110 import java.io.File;
 111 import java.io.IOException;
 112
 113
 114 /**
 115  * Displays, what files the user has available in his ownCloud.
 116  *
 117  * @author Bartek Przybylski
 118  * @author David A. Velasco
 119  */
 120
 121 public class FileDisplayActivity extends HookActivity implements
 122         FileFragment.ContainerActivity, OnNavigationListener,
 123         OnSslUntrustedCertListener, OnEnforceableRefreshListener {
 124
 125     private ArrayAdapter<String> mDirectories;
 126
 127     private SyncBroadcastReceiver mSyncBroadcastReceiver;
 128     private UploadFinishReceiver mUploadFinishReceiver;
 129     private DownloadFinishReceiver mDownloadFinishReceiver;
 130     private RemoteOperationResult mLastSslUntrustedServerResult = null;
 131
 132     private boolean mDualPane;
 133     private View mLeftFragmentContainer;
 134     private View mRightFragmentContainer;
 135
 136     private static final String KEY_WAITING_TO_PREVIEW = "WAITING_TO_PREVIEW";
 137     private static final String KEY_SYNC_IN_PROGRESS = "SYNC_IN_PROGRESS";
 138     private static final String KEY_WAITING_TO_SEND = "WAITING_TO_SEND";
 139
 140     public static final int DIALOG_SHORT_WAIT = 0;
 141     private static final int DIALOG_CHOOSE_UPLOAD_SOURCE = 1;
 142     private static final int DIALOG_CERT_NOT_SAVED = 2;
 143
 144     public static final String ACTION_DETAILS = "com.owncloud.android.ui.activity.action.DETAILS";
 145
 146     private static final int ACTION_SELECT_CONTENT_FROM_APPS = 1;
 147     private static final int ACTION_SELECT_MULTIPLE_FILES = 2;
 148     public static final int ACTION_MOVE_FILES = 3;
 149
 150     private static final String TAG = FileDisplayActivity.class.getSimpleName();
 151
 152     private static final String TAG_LIST_OF_FILES = "LIST_OF_FILES";
 153     private static final String TAG_SECOND_FRAGMENT = "SECOND_FRAGMENT";
 154
 155     private OCFile mWaitingToPreview;
 156
 157     private boolean mSyncInProgress = false;
 158
 159     private String DIALOG_UNTRUSTED_CERT;
 160
 161     private OCFile mWaitingToSend;
 162
 163     @Override
 164     protected void onCreate(Bundle savedInstanceState) {
 165         Log_OC.d(TAG, "onCreate() start");
 166         requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
 167
 168         super.onCreate(savedInstanceState); // this calls onAccountChanged() when ownCloud Account is valid
 169
 170         // PIN CODE request ;  best location is to decide, let's try this first
 171         if (getIntent().getAction() != null && getIntent().getAction().equals(Intent.ACTION_MAIN) && savedInstanceState == null) {
 172             requestPinCode();
 173         } else if (getIntent().getAction() == null && savedInstanceState == null) {
 174             requestPinCode();
 175         }
 176
 177         /// grant that FileObserverService is watching favourite files
 178         if (savedInstanceState == null) {
 179             Intent initObserversIntent = FileObserverService.makeInitIntent(this);
 180             startService(initObserversIntent);
 181         }
 182
 183         /// Load of saved instance state
 184         if (savedInstanceState != null) {
 185             mWaitingToPreview = (OCFile) savedInstanceState.getParcelable(FileDisplayActivity.KEY_WAITING_TO_PREVIEW);
 186             mSyncInProgress = savedInstanceState.getBoolean(KEY_SYNC_IN_PROGRESS);
 187             mWaitingToSend = (OCFile) savedInstanceState.getParcelable(FileDisplayActivity.KEY_WAITING_TO_SEND);
 188
 189         } else {
 190             mWaitingToPreview = null;
 191             mSyncInProgress = false;
 192             mWaitingToSend = null;
 193         }
 194
 195         /// USER INTERFACE
 196
 197         // Inflate and set the layout view
 198         setContentView(R.layout.files);
 199         mDualPane = getResources().getBoolean(R.bool.large_land_layout);
 200         mLeftFragmentContainer = findViewById(R.id.left_fragment_container);
 201         mRightFragmentContainer = findViewById(R.id.right_fragment_container);
 202         if (savedInstanceState == null) {
 203             createMinFragments();
 204         }
 205
 206         // Action bar setup
 207         mDirectories = new CustomArrayAdapter<String>(this, R.layout.sherlock_spinner_dropdown_item);
 208         getSupportActionBar().setHomeButtonEnabled(true);       // mandatory since Android ICS, according to the official documentation
 209         setSupportProgressBarIndeterminateVisibility(mSyncInProgress /*|| mRefreshSharesInProgress*/);    // always AFTER setContentView(...) ; to work around bug in its implementation
 210
 211         setBackgroundText();
 212
 213         Log_OC.d(TAG, "onCreate() end");
 214     }
 215
 216     @Override
 217     protected void onStart() {
 218         super.onStart();
 219         getSupportActionBar().setIcon(DisplayUtils.getSeasonalIconId());
 220     }
 221
 222     @Override
 223     protected void onDestroy() {
 224         super.onDestroy();
 225     }
 226
 227     /**
 228      * Called when the ownCloud {@link Account} associated to the Activity was just updated.
 229      */
 230     @Override
 231     protected void onAccountSet(boolean stateWasRecovered) {
 232         super.onAccountSet(stateWasRecovered);
 233         if (getAccount() != null) {
 234             /// Check whether the 'main' OCFile handled by the Activity is contained in the current Account
 235             OCFile file = getFile();
 236             // get parent from path
 237             String parentPath = "";
 238             if (file != null) {
 239                 if (file.isDown() && file.getLastSyncDateForProperties() == 0) {
 240                     // upload in progress - right now, files are not inserted in the local cache until the upload is successful
 241                     // get parent from path
 242                     parentPath = file.getRemotePath().substring(0, file.getRemotePath().lastIndexOf(file.getFileName()));
 243                     if (getStorageManager().getFileByPath(parentPath) == null)
 244                         file = null; // not able to know the directory where the file is uploading
 245                 } else {
 246                     file = getStorageManager().getFileByPath(file.getRemotePath());   // currentDir = null if not in the current Account
 247                 }
 248             }
 249             if (file == null) {
 250                 // fall back to root folder
 251                 file = getStorageManager().getFileByPath(OCFile.ROOT_PATH);  // never returns null
 252             }
 253             setFile(file);
 254             setNavigationListWithFolder(file);
 255
 256             if (!stateWasRecovered) {
 257                 Log_OC.e(TAG, "Initializing Fragments in onAccountChanged..");
 258                 initFragmentsWithFile();
 259                 if (file.isFolder()) {
 260                     startSyncFolderOperation(file, false);
 261                 }
 262
 263             } else {
 264                 updateFragmentsVisibility(!file.isFolder());
 265                 updateNavigationElementsInActionBar(file.isFolder() ? null : file);
 266             }
 267         }
 268     }
 269
 270
 271     private void setNavigationListWithFolder(OCFile file) {
 272         mDirectories.clear();
 273         OCFile fileIt = file;
 274         String parentPath;
 275         while (fileIt != null && fileIt.getFileName() != OCFile.ROOT_PATH) {
 276             if (fileIt.isFolder()) {
 277                 mDirectories.add(fileIt.getFileName());
 278             }
 279             // get parent from path
 280             parentPath = fileIt.getRemotePath().substring(0, fileIt.getRemotePath().lastIndexOf(fileIt.getFileName()));
 281             fileIt = getStorageManager().getFileByPath(parentPath);
 282         }
 283         mDirectories.add(OCFile.PATH_SEPARATOR);
 284     }
 285
 286
 287     private void createMinFragments() {
 288         OCFileListFragment listOfFiles = new OCFileListFragment();
 289         FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
 290         transaction.add(R.id.left_fragment_container, listOfFiles, TAG_LIST_OF_FILES);
 291         transaction.commit();
 292     }
 293
 294     private void initFragmentsWithFile() {
 295         if (getAccount() != null && getFile() != null) {
 296             /// First fragment
 297             OCFileListFragment listOfFiles = getListOfFilesFragment();
 298             if (listOfFiles != null) {
 299                 listOfFiles.listDirectory(getCurrentDir());
 300             } else {
 301                 Log_OC.e(TAG, "Still have a chance to lose the initializacion of list fragment >(");
 302             }
 303
 304             /// Second fragment
 305             OCFile file = getFile();
 306             Fragment secondFragment = chooseInitialSecondFragment(file);
 307             if (secondFragment != null) {
 308                 setSecondFragment(secondFragment);
 309                 updateFragmentsVisibility(true);
 310                 updateNavigationElementsInActionBar(file);
 311
 312             } else {
 313                 cleanSecondFragment();
 314                 if (file.isDown() && PreviewTextFragment.canBePreviewed(file))
 315                     startTextPreview(file);
 316             }
 317
 318         } else {
 319             Log_OC.wtf(TAG, "initFragments() called with invalid NULLs!");
 320             if (getAccount() == null) {
 321                 Log_OC.wtf(TAG, "\t account is NULL");
 322             }
 323             if (getFile() == null) {
 324                 Log_OC.wtf(TAG, "\t file is NULL");
 325             }
 326         }
 327     }
 328
 329     private Fragment chooseInitialSecondFragment(OCFile file) {
 330         Fragment secondFragment = null;
 331         if (file != null && !file.isFolder()) {
 332             if (file.isDown() && PreviewMediaFragment.canBePreviewed(file)
 333                     && file.getLastSyncDateForProperties() > 0  // temporal fix
 334                     ) {
 335                 int startPlaybackPosition = getIntent().getIntExtra(PreviewVideoActivity.EXTRA_START_POSITION, 0);
 336                 boolean autoplay = getIntent().getBooleanExtra(PreviewVideoActivity.EXTRA_AUTOPLAY, true);
 337                 secondFragment = new PreviewMediaFragment(file, getAccount(), startPlaybackPosition, autoplay);
 338
 339             } else if (file.isDown() && PreviewTextFragment.canBePreviewed(file)) {
 340                 secondFragment = null;
 341             } else secondFragment = new FileDetailFragment(file, getAccount());
 342         }
 343         return secondFragment;
 344     }
 345
 346
 347     /**
 348      * Replaces the second fragment managed by the activity with the received as
 349      * a parameter.
 350      * <p/>
 351      * Assumes never will be more than two fragments managed at the same time.
 352      *
 353      * @param fragment New second Fragment to set.
 354      */
 355     private void setSecondFragment(Fragment fragment) {
 356         FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
 357         transaction.replace(R.id.right_fragment_container, fragment, TAG_SECOND_FRAGMENT);
 358         transaction.commit();
 359     }
 360
 361
 362     private void updateFragmentsVisibility(boolean existsSecondFragment) {
 363         if (mDualPane) {
 364             if (mLeftFragmentContainer.getVisibility() != View.VISIBLE) {
 365                 mLeftFragmentContainer.setVisibility(View.VISIBLE);
 366             }
 367             if (mRightFragmentContainer.getVisibility() != View.VISIBLE) {
 368                 mRightFragmentContainer.setVisibility(View.VISIBLE);
 369             }
 370
 371         } else if (existsSecondFragment) {
 372             if (mLeftFragmentContainer.getVisibility() != View.GONE) {
 373                 mLeftFragmentContainer.setVisibility(View.GONE);
 374             }
 375             if (mRightFragmentContainer.getVisibility() != View.VISIBLE) {
 376                 mRightFragmentContainer.setVisibility(View.VISIBLE);
 377             }
 378
 379         } else {
 380             if (mLeftFragmentContainer.getVisibility() != View.VISIBLE) {
 381                 mLeftFragmentContainer.setVisibility(View.VISIBLE);
 382             }
 383             if (mRightFragmentContainer.getVisibility() != View.GONE) {
 384                 mRightFragmentContainer.setVisibility(View.GONE);
 385             }
 386         }
 387     }
 388
 389
 390     private OCFileListFragment getListOfFilesFragment() {
 391         Fragment listOfFiles = getSupportFragmentManager().findFragmentByTag(FileDisplayActivity.TAG_LIST_OF_FILES);
 392         if (listOfFiles != null) {
 393             return (OCFileListFragment) listOfFiles;
 394         }
 395         Log_OC.wtf(TAG, "Access to unexisting list of files fragment!!");
 396         return null;
 397     }
 398
 399     public FileFragment getSecondFragment() {
 400         Fragment second = getSupportFragmentManager().findFragmentByTag(FileDisplayActivity.TAG_SECOND_FRAGMENT);
 401         if (second != null) {
 402             return (FileFragment) second;
 403         }
 404         return null;
 405     }
 406
 407     protected void cleanSecondFragment() {
 408         Fragment second = getSecondFragment();
 409         if (second != null) {
 410             FragmentTransaction tr = getSupportFragmentManager().beginTransaction();
 411             tr.remove(second);
 412             tr.commit();
 413         }
 414         updateFragmentsVisibility(false);
 415         updateNavigationElementsInActionBar(null);
 416     }
 417
 418     protected void refreshListOfFilesFragment() {
 419         OCFileListFragment fileListFragment = getListOfFilesFragment();
 420         if (fileListFragment != null) {
 421             fileListFragment.listDirectory();
 422         }
 423     }
 424
 425     protected void refreshSecondFragment(String downloadEvent, String downloadedRemotePath, boolean success) {
 426         FileFragment secondFragment = getSecondFragment();
 427         boolean waitedPreview = (mWaitingToPreview != null && mWaitingToPreview.getRemotePath().equals(downloadedRemotePath));
 428         if (secondFragment != null && secondFragment instanceof FileDetailFragment) {
 429             FileDetailFragment detailsFragment = (FileDetailFragment) secondFragment;
 430             OCFile fileInFragment = detailsFragment.getFile();
 431             if (fileInFragment != null && !downloadedRemotePath.equals(fileInFragment.getRemotePath())) {
 432                 // the user browsed to other file ; forget the automatic preview
 433                 mWaitingToPreview = null;
 434
 435             } else if (downloadEvent.equals(FileDownloader.getDownloadAddedMessage())) {
 436                 // grant that the right panel updates the progress bar
 437                 detailsFragment.listenForTransferProgress();
 438                 detailsFragment.updateFileDetails(true, false);
 439
 440             } else if (downloadEvent.equals(FileDownloader.getDownloadFinishMessage())) {
 441                 //  update the right panel
 442                 boolean detailsFragmentChanged = false;
 443                 if (waitedPreview) {
 444                     if (success) {
 445                         mWaitingToPreview = getStorageManager().getFileById(mWaitingToPreview.getFileId());   // update the file from database, for the local storage path
 446                         if (PreviewMediaFragment.canBePreviewed(mWaitingToPreview)) {
 447                             startMediaPreview(mWaitingToPreview, 0, true);
 448                             detailsFragmentChanged = true;
 449                         } else if (PreviewTextFragment.canBePreviewed(mWaitingToPreview)) {
 450                             startTextPreview(mWaitingToPreview);
 451                             detailsFragmentChanged = true;
 452                         } else {
 453                             getFileOperationsHelper().openFile(mWaitingToPreview);
 454                         }
 455                     }
 456                     mWaitingToPreview = null;
 457                 }
 458                 if (!detailsFragmentChanged) {
 459                     detailsFragment.updateFileDetails(false, (success));
 460                 }
 461             }
 462         }
 463     }
 464
 465     @Override
 466     public boolean onPrepareOptionsMenu(Menu menu) {
 467         if (BuildConfig.DEBUG) {
 468             menu.findItem(R.id.action_logger).setVisible(true);
 469         } else {
 470             menu.findItem(R.id.action_logger).setVisible(false);
 471         }
 472         return super.onPrepareOptionsMenu(menu);
 473     }
 474
 475     @Override
 476     public boolean onCreateOptionsMenu(Menu menu) {
 477         MenuInflater inflater = getSherlock().getMenuInflater();
 478         inflater.inflate(R.menu.main_menu, menu);
 479         return true;
 480     }
 481
 482     @Override
 483     public boolean onOptionsItemSelected(MenuItem item) {
 484         boolean retval = true;
 485         switch (item.getItemId()) {
 486             case R.id.action_create_dir: {
 487                 CreateFolderDialogFragment dialog =
 488                         CreateFolderDialogFragment.newInstance(getCurrentDir());
 489                 dialog.show(getSupportFragmentManager(), "createdirdialog");
 490                 break;
 491             }
 492             case R.id.action_sort: {
 493                 SharedPreferences appPreferences = PreferenceManager
 494                         .getDefaultSharedPreferences(this);
 495
 496                 // Read sorting order, default to sort by name ascending
 497                 Integer sortOrder = appPreferences
 498                         .getInt("sortOrder", FileListListAdapter.SORT_NAME);
 499
 500                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
 501                 builder.setTitle(R.string.actionbar_sort_title)
 502                         .setSingleChoiceItems(R.array.actionbar_sortby, sortOrder, new DialogInterface.OnClickListener() {
 503                             public void onClick(DialogInterface dialog, int which) {
 504
 505                                 switch (which) {
 506                                     case 0:
 507                                         sortByName(true);
 508                                         break;
 509                                     case 1:
 510                                         sortByDate(false);
 511                                         break;
 512
 513 // TODO re-enable when server-side folder size calculation is available
 514 //                    case 2:
 515 //                        sortBySize(false);
 516 //                        break;
 517                                 }
 518
 519                                 dialog.dismiss();
 520
 521                             }
 522                         });
 523                 builder.create().show();
 524                 break;
 525             }
 526             case R.id.action_sync_account: {
 527                 startSynchronization();
 528                 break;
 529             }
 530             case R.id.action_upload: {
 531                 showDialog(DIALOG_CHOOSE_UPLOAD_SOURCE);
 532                 break;
 533             }
 534             case R.id.action_settings: {
 535                 Intent settingsIntent = new Intent(this, Preferences.class);
 536                 startActivity(settingsIntent);
 537                 break;
 538             }
 539             case R.id.action_logger: {
 540                 Intent loggerIntent = new Intent(getApplicationContext(), LogHistoryActivity.class);
 541                 startActivity(loggerIntent);
 542                 break;
 543             }
 544             case android.R.id.home: {
 545                 FileFragment second = getSecondFragment();
 546                 OCFile currentDir = getCurrentDir();
 547                 if ((currentDir != null && currentDir.getParentId() != 0) ||
 548                         (second != null && second.getFile() != null)) {
 549                     onBackPressed();
 550
 551                 }
 552                 break;
 553             }
 554             default:
 555                 retval = super.onOptionsItemSelected(item);
 556         }
 557         return retval;
 558     }
 559
 560     private void startSynchronization() {
 561         Log_OC.e(TAG, "Got to start sync");
 562         if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.KITKAT) {
 563             Log_OC.e(TAG, "Canceling all syncs for " + MainApp.getAuthority());
 564             ContentResolver.cancelSync(null, MainApp.getAuthority());   // cancel the current synchronizations of any ownCloud account
 565             Bundle bundle = new Bundle();
 566             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
 567             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true);
 568             Log_OC.e(TAG, "Requesting sync for " + getAccount().name + " at " + MainApp.getAuthority());
 569             ContentResolver.requestSync(
 570                     getAccount(),
 571                     MainApp.getAuthority(), bundle);
 572         } else {
 573             Log_OC.e(TAG, "Requesting sync for " + getAccount().name + " at " + MainApp.getAuthority() + " with new API");
 574             SyncRequest.Builder builder = new SyncRequest.Builder();
 575             builder.setSyncAdapter(getAccount(), MainApp.getAuthority());
 576             builder.setExpedited(true);
 577             builder.setManual(true);
 578             builder.syncOnce();
 579
 580             // Fix bug in Android Lollipop when you click on refresh the whole account
 581             Bundle extras = new Bundle();
 582             builder.setExtras(extras);
 583
 584             SyncRequest request = builder.build();
 585             ContentResolver.requestSync(request);
 586         }
 587     }
 588
 589
 590     @Override
 591     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 592         if (itemPosition != 0) {
 593             String targetPath = "";
 594             for (int i = itemPosition; i < mDirectories.getCount() - 1; i++) {
 595                 targetPath = mDirectories.getItem(i) + OCFile.PATH_SEPARATOR + targetPath;
 596             }
 597             targetPath = OCFile.PATH_SEPARATOR + targetPath;
 598             OCFile targetFolder = getStorageManager().getFileByPath(targetPath);
 599             if (targetFolder != null) {
 600                 browseTo(targetFolder);
 601             }
 602
 603             // the next operation triggers a new call to this method, but it's necessary to
 604             // ensure that the name exposed in the action bar is the current directory when the
 605             // user selected it in the navigation list
 606             if (getSupportActionBar().getNavigationMode() == ActionBar.NAVIGATION_MODE_LIST && itemPosition != 0)
 607                 getSupportActionBar().setSelectedNavigationItem(0);
 608         }
 609         return true;
 610     }
 611
 612     /**
 613      * Called, when the user selected something for uploading
 614      */
 615     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 616         super.onActivityResult(requestCode, resultCode, data);
 617
 618         if (requestCode == ACTION_SELECT_CONTENT_FROM_APPS && (resultCode == RESULT_OK || resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)) {
 619             requestSimpleUpload(data, resultCode);
 620
 621         } else if (requestCode == ACTION_SELECT_MULTIPLE_FILES && (resultCode == RESULT_OK || resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)) {
 622             requestMultipleUpload(data, resultCode);
 623
 624         } else if (requestCode == ACTION_MOVE_FILES && (resultCode == RESULT_OK ||
 625                 resultCode == MoveActivity.RESULT_OK_AND_MOVE)) {
 626
 627             final Intent fData = data;
 628             final int fResultCode = resultCode;
 629             getHandler().postDelayed(
 630                     new Runnable() {
 631                         @Override
 632                         public void run() {
 633                             requestMoveOperation(fData, fResultCode);
 634                         }
 635                     },
 636                     DELAY_TO_REQUEST_OPERATION_ON_ACTIVITY_RESULTS
 637             );
 638         }
 639     }
 640
 641     private void requestMultipleUpload(Intent data, int resultCode) {
 642         String[] filePaths = data.getStringArrayExtra(UploadFilesActivity.EXTRA_CHOSEN_FILES);
 643         if (filePaths != null) {
 644             String[] remotePaths = new String[filePaths.length];
 645             String remotePathBase = "";
 646             for (int j = mDirectories.getCount() - 2; j >= 0; --j) {
 647                 remotePathBase += OCFile.PATH_SEPARATOR + mDirectories.getItem(j);
 648             }
 649             if (!remotePathBase.endsWith(OCFile.PATH_SEPARATOR))
 650                 remotePathBase += OCFile.PATH_SEPARATOR;
 651             for (int j = 0; j < remotePaths.length; j++) {
 652                 remotePaths[j] = remotePathBase + (new File(filePaths[j])).getName();
 653             }
 654
 655             Intent i = new Intent(this, FileUploader.class);
 656             i.putExtra(FileUploader.KEY_ACCOUNT, getAccount());
 657             i.putExtra(FileUploader.KEY_LOCAL_FILE, filePaths);
 658             i.putExtra(FileUploader.KEY_REMOTE_FILE, remotePaths);
 659             i.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_MULTIPLE_FILES);
 660             if (resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)
 661                 i.putExtra(FileUploader.KEY_LOCAL_BEHAVIOUR, FileUploader.LOCAL_BEHAVIOUR_MOVE);
 662             startService(i);
 663
 664         } else {
 665             Log_OC.d(TAG, "User clicked on 'Update' with no selection");
 666             Toast t = Toast.makeText(this, getString(R.string.filedisplay_no_file_selected), Toast.LENGTH_LONG);
 667             t.show();
 668             return;
 669         }
 670     }
 671
 672
 673     private void requestSimpleUpload(Intent data, int resultCode) {
 674         String filepath = null;
 675         String mimeType = null;
 676
 677         Uri selectedImageUri = data.getData();
 678
 679         try {
 680             mimeType = getContentResolver().getType(selectedImageUri);
 681
 682             String filemanagerstring = selectedImageUri.getPath();
 683             String selectedImagePath = getPath(selectedImageUri);
 684
 685             if (selectedImagePath != null)
 686                 filepath = selectedImagePath;
 687             else
 688                 filepath = filemanagerstring;
 689
 690         } catch (Exception e) {
 691             Log_OC.e(TAG, "Unexpected exception when trying to read the result of Intent.ACTION_GET_CONTENT", e);
 692             e.printStackTrace();
 693
 694         } finally {
 695             if (filepath == null) {
 696                 Log_OC.e(TAG, "Couldnt resolve path to file");
 697                 Toast t = Toast.makeText(this, getString(R.string.filedisplay_unexpected_bad_get_content), Toast.LENGTH_LONG);
 698                 t.show();
 699                 return;
 700             }
 701         }
 702
 703         Intent i = new Intent(this, FileUploader.class);
 704         i.putExtra(FileUploader.KEY_ACCOUNT,
 705                 getAccount());
 706         String remotepath = new String();
 707         for (int j = mDirectories.getCount() - 2; j >= 0; --j) {
 708             remotepath += OCFile.PATH_SEPARATOR + mDirectories.getItem(j);
 709         }
 710         if (!remotepath.endsWith(OCFile.PATH_SEPARATOR))
 711             remotepath += OCFile.PATH_SEPARATOR;
 712
 713         if (filepath.startsWith(UriUtils.URI_CONTENT_SCHEME)) {
 714
 715             Cursor cursor = MainApp.getAppContext().getContentResolver()
 716                     .query(Uri.parse(filepath), null, null, null, null, null);
 717
 718             try {
 719                 if (cursor != null && cursor.moveToFirst()) {
 720                     String displayName = cursor.getString(
 721                             cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
 722                     Log.i(TAG, "Display Name: " + displayName + "; mimeType: " + mimeType);
 723
 724                     displayName.replace(File.separatorChar, '_');
 725                     displayName.replace(File.pathSeparatorChar, '_');
 726                     remotepath += displayName + DisplayUtils.getComposedFileExtension(filepath);
 727
 728                 }
 729             } finally {
 730                 cursor.close();
 731             }
 732
 733         } else {
 734             remotepath += new File(filepath).getName();
 735         }
 736
 737         i.putExtra(FileUploader.KEY_LOCAL_FILE, filepath);
 738         i.putExtra(FileUploader.KEY_REMOTE_FILE, remotepath);
 739         i.putExtra(FileUploader.KEY_MIME_TYPE, mimeType);
 740         i.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_SINGLE_FILE);
 741         if (resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)
 742             i.putExtra(FileUploader.KEY_LOCAL_BEHAVIOUR, FileUploader.LOCAL_BEHAVIOUR_MOVE);
 743         startService(i);
 744     }
 745
 746     /**
 747      * Request the operation for moving the file/folder from one path to another
 748      *
 749      * @param data       Intent received
 750      * @param resultCode Result code received
 751      */
 752     private void requestMoveOperation(Intent data, int resultCode) {
 753         OCFile folderToMoveAt = (OCFile) data.getParcelableExtra(MoveActivity.EXTRA_CURRENT_FOLDER);
 754         OCFile targetFile = (OCFile) data.getParcelableExtra(MoveActivity.EXTRA_TARGET_FILE);
 755         getFileOperationsHelper().moveFile(folderToMoveAt, targetFile);
 756     }
 757
 758     @Override
 759     public void onBackPressed() {
 760         OCFileListFragment listOfFiles = getListOfFilesFragment();
 761         if (mDualPane || getSecondFragment() == null) {
 762             if (listOfFiles != null) {  // should never be null, indeed
 763                 if (mDirectories.getCount() <= 1) {
 764                     finish();
 765                     return;
 766                 }
 767                 int levelsUp = listOfFiles.onBrowseUp();
 768                 for (int i = 0; i < levelsUp && mDirectories.getCount() > 1; i++) {
 769                     popDirname();
 770                 }
 771             }
 772         }
 773         if (listOfFiles != null) {  // should never be null, indeed
 774             setFile(listOfFiles.getCurrentFile());
 775         }
 776         cleanSecondFragment();
 777
 778     }
 779
 780     @Override
 781     protected void onSaveInstanceState(Bundle outState) {
 782         // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
 783         Log_OC.e(TAG, "onSaveInstanceState() start");
 784         super.onSaveInstanceState(outState);
 785         outState.putParcelable(FileDisplayActivity.KEY_WAITING_TO_PREVIEW, mWaitingToPreview);
 786         outState.putBoolean(FileDisplayActivity.KEY_SYNC_IN_PROGRESS, mSyncInProgress);
 787         //outState.putBoolean(FileDisplayActivity.KEY_REFRESH_SHARES_IN_PROGRESS, mRefreshSharesInProgress);
 788         outState.putParcelable(FileDisplayActivity.KEY_WAITING_TO_SEND, mWaitingToSend);
 789
 790         Log_OC.d(TAG, "onSaveInstanceState() end");
 791     }
 792
 793
 794     @Override
 795     protected void onResume() {
 796         super.onResume();
 797         Log_OC.e(TAG, "onResume() start");
 798
 799         // refresh list of files
 800         refreshListOfFilesFragment();
 801
 802         // Listen for sync messages
 803         IntentFilter syncIntentFilter = new IntentFilter(FileSyncAdapter.EVENT_FULL_SYNC_START);
 804         syncIntentFilter.addAction(FileSyncAdapter.EVENT_FULL_SYNC_END);
 805         syncIntentFilter.addAction(FileSyncAdapter.EVENT_FULL_SYNC_FOLDER_CONTENTS_SYNCED);
 806         syncIntentFilter.addAction(SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_CONTENTS_SYNCED);
 807         syncIntentFilter.addAction(SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_SHARES_SYNCED);
 808         mSyncBroadcastReceiver = new SyncBroadcastReceiver();
 809         registerReceiver(mSyncBroadcastReceiver, syncIntentFilter);
 810         //LocalBroadcastManager.getInstance(this).registerReceiver(mSyncBroadcastReceiver, syncIntentFilter);
 811
 812         // Listen for upload messages
 813         IntentFilter uploadIntentFilter = new IntentFilter(FileUploader.getUploadFinishMessage());
 814         mUploadFinishReceiver = new UploadFinishReceiver();
 815         registerReceiver(mUploadFinishReceiver, uploadIntentFilter);
 816
 817         // Listen for download messages
 818         IntentFilter downloadIntentFilter = new IntentFilter(FileDownloader.getDownloadAddedMessage());
 819         downloadIntentFilter.addAction(FileDownloader.getDownloadFinishMessage());
 820         mDownloadFinishReceiver = new DownloadFinishReceiver();
 821         registerReceiver(mDownloadFinishReceiver, downloadIntentFilter);
 822
 823         Log_OC.d(TAG, "onResume() end");
 824     }
 825
 826
 827     @Override
 828     protected void onPause() {
 829         Log_OC.e(TAG, "onPause() start");
 830         if (mSyncBroadcastReceiver != null) {
 831             unregisterReceiver(mSyncBroadcastReceiver);
 832             //LocalBroadcastManager.getInstance(this).unregisterReceiver(mSyncBroadcastReceiver);
 833             mSyncBroadcastReceiver = null;
 834         }
 835         if (mUploadFinishReceiver != null) {
 836             unregisterReceiver(mUploadFinishReceiver);
 837             mUploadFinishReceiver = null;
 838         }
 839         if (mDownloadFinishReceiver != null) {
 840             unregisterReceiver(mDownloadFinishReceiver);
 841             mDownloadFinishReceiver = null;
 842         }
 843
 844
 845         Log_OC.d(TAG, "onPause() end");
 846         super.onPause();
 847     }
 848
 849
 850     @Override
 851     protected Dialog onCreateDialog(int id) {
 852         Dialog dialog = null;
 853         AlertDialog.Builder builder;
 854         switch (id) {
 855             case DIALOG_SHORT_WAIT: {
 856                 ProgressDialog working_dialog = new ProgressDialog(this);
 857                 working_dialog.setMessage(getResources().getString(
 858                         R.string.wait_a_moment));
 859                 working_dialog.setIndeterminate(true);
 860                 working_dialog.setCancelable(false);
 861                 dialog = working_dialog;
 862                 break;
 863             }
 864             case DIALOG_CHOOSE_UPLOAD_SOURCE: {
 865
 866
 867                 String[] allTheItems = {getString(R.string.actionbar_upload_files),
 868                         getString(R.string.actionbar_upload_from_apps)};
 869
 870                 builder = new AlertDialog.Builder(this);
 871                 builder.setTitle(R.string.actionbar_upload);
 872                 builder.setItems(allTheItems, new DialogInterface.OnClickListener() {
 873                     public void onClick(DialogInterface dialog, int item) {
 874                         if (item == 0) {
 875                             // if (!mDualPane) {
 876                             Intent action = new Intent(FileDisplayActivity.this, UploadFilesActivity.class);
 877                             action.putExtra(UploadFilesActivity.EXTRA_ACCOUNT, FileDisplayActivity.this.getAccount());
 878                             startActivityForResult(action, ACTION_SELECT_MULTIPLE_FILES);
 879                             // } else {
 880                             // TODO create and handle new fragment
 881                             // LocalFileListFragment
 882                             // }
 883                         } else if (item == 1) {
 884                             Intent action = new Intent(Intent.ACTION_GET_CONTENT);
 885                             action = action.setType("*/*").addCategory(Intent.CATEGORY_OPENABLE);
 886                             startActivityForResult(Intent.createChooser(action, getString(R.string.upload_chooser_title)),
 887                                     ACTION_SELECT_CONTENT_FROM_APPS);
 888                         }
 889                     }
 890                 });
 891                 dialog = builder.create();
 892                 break;
 893             }
 894             case DIALOG_CERT_NOT_SAVED: {
 895                 builder = new AlertDialog.Builder(this);
 896                 builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
 897                 builder.setCancelable(false);
 898                 builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
 899                     @Override
 900                     public void onClick(DialogInterface dialog, int which) {
 901                         dialog.dismiss();
 902                     }
 903
 904                     ;
 905                 });
 906                 dialog = builder.create();
 907                 break;
 908             }
 909             default:
 910                 dialog = null;
 911         }
 912
 913         return dialog;
 914     }
 915
 916     /**
 917      * Translates a content URI of an image to a physical path
 918      * on the disk
 919      *
 920      * @param uri The URI to resolve
 921      * @return The path to the content or null if it could not be found
 922      */
 923     public String getPath(Uri uri) {
 924         final boolean isKitKatOrLater = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
 925
 926         // DocumentProvider
 927         if (isKitKatOrLater && DocumentsContract.isDocumentUri(getApplicationContext(), uri)) {
 928             // ExternalStorageProvider
 929             if (UriUtils.isExternalStorageDocument(uri)) {
 930                 final String docId = DocumentsContract.getDocumentId(uri);
 931                 final String[] split = docId.split(":");
 932                 final String type = split[0];
 933
 934                 if ("primary".equalsIgnoreCase(type)) {
 935                     return Environment.getExternalStorageDirectory() + "/" + split[1];
 936                 }
 937             }
 938             // DownloadsProvider
 939             else if (UriUtils.isDownloadsDocument(uri)) {
 940
 941                 final String id = DocumentsContract.getDocumentId(uri);
 942                 final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),
 943                         Long.valueOf(id));
 944
 945                 return UriUtils.getDataColumn(getApplicationContext(), contentUri, null, null);
 946             }
 947             // MediaProvider
 948             else if (UriUtils.isMediaDocument(uri)) {
 949                 final String docId = DocumentsContract.getDocumentId(uri);
 950                 final String[] split = docId.split(":");
 951                 final String type = split[0];
 952
 953                 Uri contentUri = null;
 954                 if ("image".equals(type)) {
 955                     contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
 956                 } else if ("video".equals(type)) {
 957                     contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
 958                 } else if ("audio".equals(type)) {
 959                     contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
 960                 }
 961
 962                 final String selection = "_id=?";
 963                 final String[] selectionArgs = new String[]{split[1]};
 964
 965                 return UriUtils.getDataColumn(getApplicationContext(), contentUri, selection, selectionArgs);
 966             }
 967             // Documents providers returned as content://...
 968             else if (UriUtils.isContentDocument(uri)) {
 969                 return uri.toString();
 970             }
 971         }
 972         // MediaStore (and general)
 973         else if ("content".equalsIgnoreCase(uri.getScheme())) {
 974
 975             // Return the remote address
 976             if (UriUtils.isGooglePhotosUri(uri))
 977                 return uri.getLastPathSegment();
 978
 979             return UriUtils.getDataColumn(getApplicationContext(), uri, null, null);
 980         }
 981         // File
 982         else if ("file".equalsIgnoreCase(uri.getScheme())) {
 983             return uri.getPath();
 984         }
 985         return null;
 986     }
 987
 988     /**
 989      * Pushes a directory to the drop down list
 990      *
 991      * @param directory to push
 992      * @throws IllegalArgumentException If the {@link OCFile#isFolder()} returns false.
 993      */
 994     public void pushDirname(OCFile directory) {
 995         if (!directory.isFolder()) {
 996             throw new IllegalArgumentException("Only directories may be pushed!");
 997         }
 998         mDirectories.insert(directory.getFileName(), 0);
 999         setFile(directory);
1000     }
1001
1002     /**
1003      * Pops a directory name from the drop down list
1004      *
1005      * @return True, unless the stack is empty
1006      */
1007     public boolean popDirname() {
1008         mDirectories.remove(mDirectories.getItem(0));
1009         return !mDirectories.isEmpty();
1010     }
1011
1012     // Custom array adapter to override text colors
1013     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
1014
1015         public CustomArrayAdapter(FileDisplayActivity ctx, int view) {
1016             super(ctx, view);
1017         }
1018
1019         public View getView(int position, View convertView, ViewGroup parent) {
1020             View v = super.getView(position, convertView, parent);
1021
1022             ((TextView) v).setTextColor(getResources().getColorStateList(
1023                     android.R.color.white));
1024
1025             fixRoot((TextView) v);
1026             return v;
1027         }
1028
1029         public View getDropDownView(int position, View convertView,
1030                                     ViewGroup parent) {
1031             View v = super.getDropDownView(position, convertView, parent);
1032
1033             ((TextView) v).setTextColor(getResources().getColorStateList(
1034                     android.R.color.white));
1035
1036             fixRoot((TextView) v);
1037             return v;
1038         }
1039
1040         private void fixRoot(TextView v) {
1041             if (v.getText().equals(OCFile.PATH_SEPARATOR)) {
1042                 v.setText(R.string.default_display_name_for_root_folder);
1043             }
1044         }
1045
1046     }
1047
1048     private class SyncBroadcastReceiver extends BroadcastReceiver {
1049
1050         /**
1051          * {@link BroadcastReceiver} to enable syncing feedback in UI
1052          */
1053         @Override
1054         public void onReceive(Context context, Intent intent) {
1055             try {
1056                 String event = intent.getAction();
1057                 Log_OC.d(TAG, "Received broadcast " + event);
1058                 String accountName = intent.getStringExtra(FileSyncAdapter.EXTRA_ACCOUNT_NAME);
1059                 String synchFolderRemotePath = intent.getStringExtra(FileSyncAdapter.EXTRA_FOLDER_PATH);
1060                 RemoteOperationResult synchResult = (RemoteOperationResult) intent.getSerializableExtra(FileSyncAdapter.EXTRA_RESULT);
1061                 boolean sameAccount = (getAccount() != null && accountName.equals(getAccount().name) && getStorageManager() != null);
1062
1063                 if (sameAccount) {
1064
1065                     if (FileSyncAdapter.EVENT_FULL_SYNC_START.equals(event)) {
1066                         mSyncInProgress = true;
1067
1068                     } else {
1069                         OCFile currentFile = (getFile() == null) ? null : getStorageManager().getFileByPath(getFile().getRemotePath());
1070                         OCFile currentDir = (getCurrentDir() == null) ? null : getStorageManager().getFileByPath(getCurrentDir().getRemotePath());
1071
1072                         if (currentDir == null) {
1073                             // current folder was removed from the server
1074                             Toast.makeText(FileDisplayActivity.this,
1075                                     String.format(getString(R.string.sync_current_folder_was_removed), mDirectories.getItem(0)),
1076                                     Toast.LENGTH_LONG)
1077                                     .show();
1078                             browseToRoot();
1079
1080                         } else {
1081                             if (currentFile == null && !getFile().isFolder()) {
1082                                 // currently selected file was removed in the server, and now we know it
1083                                 cleanSecondFragment();
1084                                 currentFile = currentDir;
1085                             }
1086
1087                             if (synchFolderRemotePath != null && currentDir.getRemotePath().equals(synchFolderRemotePath)) {
1088                                 OCFileListFragment fileListFragment = getListOfFilesFragment();
1089                                 if (fileListFragment != null) {
1090                                     fileListFragment.listDirectory(currentDir);
1091                                 }
1092                             }
1093                             setFile(currentFile);
1094                         }
1095
1096                         mSyncInProgress = (!FileSyncAdapter.EVENT_FULL_SYNC_END.equals(event) && !SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_SHARES_SYNCED.equals(event));
1097
1098                         if (SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_CONTENTS_SYNCED.
1099                                 equals(event) &&
1100                                 /// TODO refactor and make common
1101                                 synchResult != null && !synchResult.isSuccess() &&
1102                                 (synchResult.getCode() == ResultCode.UNAUTHORIZED ||
1103                                         synchResult.isIdPRedirection() ||
1104                                         (synchResult.isException() && synchResult.getException()
1105                                                 instanceof AuthenticatorException))) {
1106
1107                             OwnCloudClient client = null;
1108                             try {
1109                                 OwnCloudAccount ocAccount =
1110                                         new OwnCloudAccount(getAccount(), context);
1111                                 client = (OwnCloudClientManagerFactory.getDefaultSingleton().
1112                                         removeClientFor(ocAccount));
1113                                 // TODO get rid of these exceptions
1114                             } catch (AccountNotFoundException e) {
1115                                 e.printStackTrace();
1116                             } catch (AuthenticatorException e) {
1117                                 e.printStackTrace();
1118                             } catch (OperationCanceledException e) {
1119                                 e.printStackTrace();
1120                             } catch (IOException e) {
1121                                 e.printStackTrace();
1122                             }
1123
1124                             if (client != null) {
1125                                 OwnCloudCredentials cred = client.getCredentials();
1126                                 if (cred != null) {
1127                                     AccountManager am = AccountManager.get(context);
1128                                     if (cred.authTokenExpires()) {
1129                                         am.invalidateAuthToken(
1130                                                 getAccount().type,
1131                                                 cred.getAuthToken()
1132                                         );
1133                                     } else {
1134                                         am.clearPassword(getAccount());
1135                                     }
1136                                 }
1137                             }
1138
1139                             requestCredentialsUpdate();
1140
1141                         }
1142                     }
1143                     removeStickyBroadcast(intent);
1144                     Log_OC.d(TAG, "Setting progress visibility to " + mSyncInProgress);
1145                     setSupportProgressBarIndeterminateVisibility(mSyncInProgress /*|| mRefreshSharesInProgress*/);
1146
1147                     setBackgroundText();
1148
1149                 }
1150
1151                 if (synchResult != null) {
1152                     if (synchResult.getCode().equals(RemoteOperationResult.ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED)) {
1153                         mLastSslUntrustedServerResult = synchResult;
1154                     }
1155                 }
1156             } catch (RuntimeException e) {
1157                 // avoid app crashes after changing the serial id of RemoteOperationResult
1158                 // in owncloud library with broadcast notifications pending to process
1159                 removeStickyBroadcast(intent);
1160             }
1161         }
1162     }
1163
1164     /**
1165      * Show a text message on screen view for notifying user if content is
1166      * loading or folder is empty
1167      */
1168     private void setBackgroundText() {
1169         OCFileListFragment ocFileListFragment = getListOfFilesFragment();
1170         if (ocFileListFragment != null) {
1171             int message = R.string.file_list_loading;
1172             if (!mSyncInProgress) {
1173                 // In case file list is empty
1174                 message = R.string.file_list_empty;
1175             }
1176             ocFileListFragment.setMessageForEmptyList(getString(message));
1177         } else {
1178             Log_OC.e(TAG, "OCFileListFragment is null");
1179         }
1180     }
1181
1182     /**
1183      * Once the file upload has finished -> update view
1184      */
1185     private class UploadFinishReceiver extends BroadcastReceiver {
1186         /**
1187          * Once the file upload has finished -> update view
1188          *
1189          * @author David A. Velasco
1190          * {@link BroadcastReceiver} to enable upload feedback in UI
1191          */
1192         @Override
1193         public void onReceive(Context context, Intent intent) {
1194             try {
1195                 String uploadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
1196                 String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
1197                 boolean sameAccount = getAccount() != null && accountName.equals(getAccount().name);
1198                 OCFile currentDir = getCurrentDir();
1199                 boolean isDescendant = (currentDir != null) && (uploadedRemotePath != null) &&
1200                         (uploadedRemotePath.startsWith(currentDir.getRemotePath()));
1201
1202                 if (sameAccount && isDescendant) {
1203                     refreshListOfFilesFragment();
1204                 }
1205
1206                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
1207                 boolean renamedInUpload = getFile().getRemotePath().
1208                         equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
1209                 boolean sameFile = getFile().getRemotePath().equals(uploadedRemotePath) ||
1210                         renamedInUpload;
1211                 FileFragment details = getSecondFragment();
1212                 boolean detailFragmentIsShown = (details != null &&
1213                         details instanceof FileDetailFragment);
1214
1215                 if (sameAccount && sameFile && detailFragmentIsShown) {
1216                     if (uploadWasFine) {
1217                         setFile(getStorageManager().getFileByPath(uploadedRemotePath));
1218                     }
1219                     if (renamedInUpload) {
1220                         String newName = (new File(uploadedRemotePath)).getName();
1221                         Toast msg = Toast.makeText(
1222                                 context,
1223                                 String.format(
1224                                         getString(R.string.filedetails_renamed_in_upload_msg),
1225                                         newName),
1226                                 Toast.LENGTH_LONG);
1227                         msg.show();
1228                     }
1229                     if (uploadWasFine || getFile().fileExists()) {
1230                         ((FileDetailFragment) details).updateFileDetails(false, true);
1231                     } else {
1232                         cleanSecondFragment();
1233                     }
1234
1235                     // Force the preview if the file is an image or text file
1236                     if (uploadWasFine) {
1237                         OCFile ocFile = getFile();
1238                         if (PreviewImageFragment.canBePreviewed(ocFile))
1239                             startImagePreview(getFile());
1240                         else if (PreviewTextFragment.canBePreviewed(ocFile))
1241                             startTextPreview(ocFile);
1242                         // TODO what about other kind of previews?
1243                     }
1244                 }
1245
1246             } finally {
1247                 if (intent != null) {
1248                     removeStickyBroadcast(intent);
1249                 }
1250             }
1251
1252         }
1253
1254     }
1255
1256
1257     /**
1258      * Class waiting for broadcast events from the {@link FileDownloader} service.
1259      * <p/>
1260      * Updates the UI when a download is started or finished, provided that it is relevant for the
1261      * current folder.
1262      */
1263     private class DownloadFinishReceiver extends BroadcastReceiver {
1264         @Override
1265         public void onReceive(Context context, Intent intent) {
1266             try {
1267                 boolean sameAccount = isSameAccount(context, intent);
1268                 String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
1269                 boolean isDescendant = isDescendant(downloadedRemotePath);
1270
1271                 if (sameAccount && isDescendant) {
1272                     refreshListOfFilesFragment();
1273                     refreshSecondFragment(intent.getAction(), downloadedRemotePath, intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false));
1274                 }
1275
1276                 if (mWaitingToSend != null) {
1277                     mWaitingToSend = getStorageManager().getFileByPath(mWaitingToSend.getRemotePath()); // Update the file to send
1278                     if (mWaitingToSend.isDown()) {
1279                         sendDownloadedFile();
1280                     }
1281                 }
1282
1283             } finally {
1284                 if (intent != null) {
1285                     removeStickyBroadcast(intent);
1286                 }
1287             }
1288         }
1289
1290         private boolean isDescendant(String downloadedRemotePath) {
1291             OCFile currentDir = getCurrentDir();
1292             return (currentDir != null && downloadedRemotePath != null && downloadedRemotePath.startsWith(currentDir.getRemotePath()));
1293         }
1294
1295         private boolean isSameAccount(Context context, Intent intent) {
1296             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
1297             return (accountName != null && getAccount() != null && accountName.equals(getAccount().name));
1298         }
1299     }
1300
1301
1302     public void browseToRoot() {
1303         OCFileListFragment listOfFiles = getListOfFilesFragment();
1304         if (listOfFiles != null) {  // should never be null, indeed
1305             while (mDirectories.getCount() > 1) {
1306                 popDirname();
1307             }
1308             OCFile root = getStorageManager().getFileByPath(OCFile.ROOT_PATH);
1309             listOfFiles.listDirectory(root);
1310             setFile(listOfFiles.getCurrentFile());
1311             startSyncFolderOperation(root, false);
1312         }
1313         cleanSecondFragment();
1314     }
1315
1316
1317     public void browseTo(OCFile folder) {
1318         if (folder == null || !folder.isFolder()) {
1319             throw new IllegalArgumentException("Trying to browse to invalid folder " + folder);
1320         }
1321         OCFileListFragment listOfFiles = getListOfFilesFragment();
1322         if (listOfFiles != null) {
1323             setNavigationListWithFolder(folder);
1324             listOfFiles.listDirectory(folder);
1325             setFile(listOfFiles.getCurrentFile());
1326             startSyncFolderOperation(folder, false);
1327         } else {
1328             Log_OC.e(TAG, "Unexpected null when accessing list fragment");
1329         }
1330         cleanSecondFragment();
1331     }
1332
1333
1334     /**
1335      * {@inheritDoc}
1336      * <p/>
1337      * Updates action bar and second fragment, if in dual pane mode.
1338      */
1339     @Override
1340     public void onBrowsedDownTo(OCFile directory) {
1341         pushDirname(directory);
1342         cleanSecondFragment();
1343
1344         // Sync Folder
1345         startSyncFolderOperation(directory, false);
1346
1347     }
1348
1349     /**
1350      * Shows the information of the {@link OCFile} received as a
1351      * parameter in the second fragment.
1352      *
1353      * @param file {@link OCFile} whose details will be shown
1354      */
1355     @Override
1356     public void showDetails(OCFile file) {
1357         Fragment detailFragment = new FileDetailFragment(file, getAccount());
1358         setSecondFragment(detailFragment);
1359         updateFragmentsVisibility(true);
1360         updateNavigationElementsInActionBar(file);
1361         setFile(file);
1362     }
1363
1364
1365     /**
1366      * TODO
1367      */
1368     private void updateNavigationElementsInActionBar(OCFile chosenFile) {
1369         ActionBar actionBar = getSupportActionBar();
1370         if (chosenFile == null || mDualPane) {
1371             // only list of files - set for browsing through folders
1372             OCFile currentDir = getCurrentDir();
1373             boolean noRoot = (currentDir != null && currentDir.getParentId() != 0);
1374             actionBar.setDisplayHomeAsUpEnabled(noRoot);
1375             actionBar.setDisplayShowTitleEnabled(!noRoot);
1376             if (!noRoot) {
1377                 actionBar.setTitle(getString(R.string.default_display_name_for_root_folder));
1378             }
1379             actionBar.setNavigationMode(!noRoot ? ActionBar.NAVIGATION_MODE_STANDARD : ActionBar.NAVIGATION_MODE_LIST);
1380             actionBar.setListNavigationCallbacks(mDirectories, this);   // assuming mDirectories is updated
1381
1382         } else {
1383             actionBar.setDisplayHomeAsUpEnabled(true);
1384             actionBar.setDisplayShowTitleEnabled(true);
1385             actionBar.setTitle(chosenFile.getFileName());
1386             actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
1387         }
1388     }
1389
1390
1391     @Override
1392     protected ServiceConnection newTransferenceServiceConnection() {
1393         return new ListServiceConnection();
1394     }
1395
1396     /**
1397      * Defines callbacks for service binding, passed to bindService()
1398      */
1399     private class ListServiceConnection implements ServiceConnection {
1400
1401         @Override
1402         public void onServiceConnected(ComponentName component, IBinder service) {
1403             if (component.equals(new ComponentName(FileDisplayActivity.this, FileDownloader.class))) {
1404                 Log_OC.d(TAG, "Download service connected");
1405                 mDownloaderBinder = (FileDownloaderBinder) service;
1406                 if (mWaitingToPreview != null)
1407                     if (getStorageManager() != null) {
1408                         mWaitingToPreview = getStorageManager().getFileById(mWaitingToPreview.getFileId()); // update the file
1409                         if (!mWaitingToPreview.isDown()) {
1410                             requestForDownload();
1411                         }
1412                     }
1413
1414             } else if (component.equals(new ComponentName(FileDisplayActivity.this, FileUploader.class))) {
1415                 Log_OC.d(TAG, "Upload service connected");
1416                 mUploaderBinder = (FileUploaderBinder) service;
1417             } else {
1418                 return;
1419             }
1420             // a new chance to get the mDownloadBinder through getFileDownloadBinder() - THIS IS A MESS
1421             OCFileListFragment listOfFiles = getListOfFilesFragment();
1422             if (listOfFiles != null) {
1423                 listOfFiles.listDirectory();
1424             }
1425             FileFragment secondFragment = getSecondFragment();
1426             if (secondFragment != null && secondFragment instanceof FileDetailFragment) {
1427                 FileDetailFragment detailFragment = (FileDetailFragment) secondFragment;
1428                 detailFragment.listenForTransferProgress();
1429                 detailFragment.updateFileDetails(false, false);
1430             }
1431         }
1432
1433         @Override
1434         public void onServiceDisconnected(ComponentName component) {
1435             if (component.equals(new ComponentName(FileDisplayActivity.this, FileDownloader.class))) {
1436                 Log_OC.d(TAG, "Download service disconnected");
1437                 mDownloaderBinder = null;
1438             } else if (component.equals(new ComponentName(FileDisplayActivity.this, FileUploader.class))) {
1439                 Log_OC.d(TAG, "Upload service disconnected");
1440                 mUploaderBinder = null;
1441             }
1442         }
1443     }
1444
1445     ;
1446
1447
1448     /**
1449      * Launch an intent to request the PIN code to the user before letting him use the app
1450      */
1451     private void requestPinCode() {
1452         boolean pinStart = false;
1453         SharedPreferences appPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
1454         pinStart = appPrefs.getBoolean("set_pincode", false);
1455         if (pinStart) {
1456             Intent i = new Intent(getApplicationContext(), PinCodeActivity.class);
1457             i.putExtra(PinCodeActivity.EXTRA_ACTIVITY, "FileDisplayActivity");
1458             startActivity(i);
1459         }
1460     }
1461
1462
1463     @Override
1464     public void onSavedCertificate() {
1465         startSyncFolderOperation(getCurrentDir(), false);
1466     }
1467
1468
1469     @Override
1470     public void onFailedSavingCertificate() {
1471         showDialog(DIALOG_CERT_NOT_SAVED);
1472     }
1473
1474     @Override
1475     public void onCancelCertificate() {
1476         // nothing to do
1477     }
1478
1479     /**
1480      * Updates the view associated to the activity after the finish of some operation over files
1481      * in the current account.
1482      *
1483      * @param operation Removal operation performed.
1484      * @param result    Result of the removal.
1485      */
1486     @Override
1487     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
1488         super.onRemoteOperationFinish(operation, result);
1489
1490         if (operation instanceof RemoveFileOperation) {
1491             onRemoveFileOperationFinish((RemoveFileOperation) operation, result);
1492
1493         } else if (operation instanceof RenameFileOperation) {
1494             onRenameFileOperationFinish((RenameFileOperation) operation, result);
1495
1496         } else if (operation instanceof SynchronizeFileOperation) {
1497             onSynchronizeFileOperationFinish((SynchronizeFileOperation) operation, result);
1498
1499         } else if (operation instanceof CreateFolderOperation) {
1500             onCreateFolderOperationFinish((CreateFolderOperation) operation, result);
1501
1502         } else if (operation instanceof CreateShareOperation) {
1503             onCreateShareOperationFinish((CreateShareOperation) operation, result);
1504
1505         } else if (operation instanceof UnshareLinkOperation) {
1506             onUnshareLinkOperationFinish((UnshareLinkOperation) operation, result);
1507
1508         } else if (operation instanceof MoveFileOperation) {
1509             onMoveFileOperationFinish((MoveFileOperation) operation, result);
1510         }
1511
1512     }
1513
1514
1515     private void onCreateShareOperationFinish(CreateShareOperation operation, RemoteOperationResult result) {
1516         if (result.isSuccess()) {
1517             refreshShowDetails();
1518             refreshListOfFilesFragment();
1519         }
1520     }
1521
1522
1523     private void onUnshareLinkOperationFinish(UnshareLinkOperation operation, RemoteOperationResult result) {
1524         if (result.isSuccess()) {
1525             refreshShowDetails();
1526             refreshListOfFilesFragment();
1527
1528         } else if (result.getCode() == ResultCode.SHARE_NOT_FOUND) {
1529             cleanSecondFragment();
1530             refreshListOfFilesFragment();
1531         }
1532     }
1533
1534     private void refreshShowDetails() {
1535         FileFragment details = getSecondFragment();
1536         if (details != null) {
1537             OCFile file = details.getFile();
1538             if (file != null) {
1539                 file = getStorageManager().getFileByPath(file.getRemotePath());
1540                 if (details instanceof PreviewMediaFragment) {
1541                     // Refresh  OCFile of the fragment
1542                     ((PreviewMediaFragment) details).updateFile(file);
1543                 } else if (details instanceof PreviewTextFragment) {
1544                     // Refresh  OCFile of the fragment
1545                     ((PreviewTextFragment) details).updateFile(file);
1546                 } else
1547                     showDetails(file);
1548             }
1549             invalidateOptionsMenu();
1550         }
1551     }
1552
1553     /**
1554      * Updates the view associated to the activity after the finish of an operation trying to remove a
1555      * file.
1556      *
1557      * @param operation Removal operation performed.
1558      * @param result    Result of the removal.
1559      */
1560     private void onRemoveFileOperationFinish(RemoveFileOperation operation, RemoteOperationResult result) {
1561         dismissLoadingDialog();
1562
1563         Toast msg = Toast.makeText(this, ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1564                 Toast.LENGTH_LONG);
1565         msg.show();
1566
1567         if (result.isSuccess()) {
1568             OCFile removedFile = operation.getFile();
1569             FileFragment second = getSecondFragment();
1570             if (second != null && removedFile.equals(second.getFile())) {
1571                 if (second instanceof PreviewMediaFragment) {
1572                     ((PreviewMediaFragment) second).stopPreview(true);
1573                 }
1574                 setFile(getStorageManager().getFileById(removedFile.getParentId()));
1575                 cleanSecondFragment();
1576             }
1577             if (getStorageManager().getFileById(removedFile.getParentId()).equals(getCurrentDir())) {
1578                 refreshListOfFilesFragment();
1579             }
1580             invalidateOptionsMenu();
1581         } else {
1582             if (result.isSslRecoverableException()) {
1583                 mLastSslUntrustedServerResult = result;
1584                 showUntrustedCertDialog(mLastSslUntrustedServerResult);
1585             }
1586         }
1587     }
1588
1589
1590     /**
1591      * Updates the view associated to the activity after the finish of an operation trying to move a
1592      * file.
1593      *
1594      * @param operation Move operation performed.
1595      * @param result    Result of the move operation.
1596      */
1597     private void onMoveFileOperationFinish(MoveFileOperation operation, RemoteOperationResult result) {
1598         if (result.isSuccess()) {
1599             dismissLoadingDialog();
1600             refreshListOfFilesFragment();
1601         } else {
1602             dismissLoadingDialog();
1603             try {
1604                 Toast msg = Toast.makeText(FileDisplayActivity.this,
1605                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1606                         Toast.LENGTH_LONG);
1607                 msg.show();
1608
1609             } catch (NotFoundException e) {
1610                 Log_OC.e(TAG, "Error while trying to show fail message ", e);
1611             }
1612         }
1613     }
1614
1615
1616     /**
1617      * Updates the view associated to the activity after the finish of an operation trying to rename a
1618      * file.
1619      *
1620      * @param operation Renaming operation performed.
1621      * @param result    Result of the renaming.
1622      */
1623     private void onRenameFileOperationFinish(RenameFileOperation operation, RemoteOperationResult result) {
1624         dismissLoadingDialog();
1625         OCFile renamedFile = operation.getFile();
1626         if (result.isSuccess()) {
1627             FileFragment details = getSecondFragment();
1628             if (details != null) {
1629                 if (details instanceof FileDetailFragment && renamedFile.equals(details.getFile())) {
1630                     ((FileDetailFragment) details).updateFileDetails(renamedFile, getAccount());
1631                     showDetails(renamedFile);
1632
1633                 } else if (details instanceof PreviewMediaFragment && renamedFile.equals(details.getFile())) {
1634                     ((PreviewMediaFragment) details).updateFile(renamedFile);
1635                     if (PreviewMediaFragment.canBePreviewed(renamedFile)) {
1636                         int position = ((PreviewMediaFragment) details).getPosition();
1637                         startMediaPreview(renamedFile, position, true);
1638                     } else {
1639                         getFileOperationsHelper().openFile(renamedFile);
1640                     }
1641                 } else if (details instanceof PreviewTextFragment && renamedFile.equals(details.getFile())) {
1642                     ((PreviewTextFragment) details).updateFile(renamedFile);
1643                     if (PreviewTextFragment.canBePreviewed(renamedFile)) {
1644                         startTextPreview(renamedFile);
1645                     } else {
1646                         getFileOperationsHelper().openFile(renamedFile);
1647                     }
1648                 }
1649             }
1650
1651             if (getStorageManager().getFileById(renamedFile.getParentId()).equals(getCurrentDir())) {
1652                 refreshListOfFilesFragment();
1653             }
1654
1655         } else {
1656             Toast msg = Toast.makeText(this, ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1657                     Toast.LENGTH_LONG);
1658             msg.show();
1659
1660             if (result.isSslRecoverableException()) {
1661                 mLastSslUntrustedServerResult = result;
1662                 showUntrustedCertDialog(mLastSslUntrustedServerResult);
1663             }
1664         }
1665     }
1666
1667     private void onSynchronizeFileOperationFinish(SynchronizeFileOperation operation, RemoteOperationResult result) {
1668         dismissLoadingDialog();
1669         OCFile syncedFile = operation.getLocalFile();
1670         if (!result.isSuccess()) {
1671             if (result.getCode() == ResultCode.SYNC_CONFLICT) {
1672                 Intent i = new Intent(this, ConflictsResolveActivity.class);
1673                 i.putExtra(ConflictsResolveActivity.EXTRA_FILE, syncedFile);
1674                 i.putExtra(ConflictsResolveActivity.EXTRA_ACCOUNT, getAccount());
1675                 startActivity(i);
1676
1677             }
1678
1679         } else {
1680             if (operation.transferWasRequested()) {
1681                 onTransferStateChanged(syncedFile, true, true);
1682
1683             } else {
1684                 Toast msg = Toast.makeText(this, ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1685                         Toast.LENGTH_LONG);
1686                 msg.show();
1687             }
1688         }
1689     }
1690
1691     /**
1692      * Updates the view associated to the activity after the finish of an operation trying create a new folder
1693      *
1694      * @param operation Creation operation performed.
1695      * @param result    Result of the creation.
1696      */
1697     private void onCreateFolderOperationFinish(CreateFolderOperation operation, RemoteOperationResult result) {
1698         if (result.isSuccess()) {
1699             dismissLoadingDialog();
1700             refreshListOfFilesFragment();
1701         } else {
1702             dismissLoadingDialog();
1703             try {
1704                 Toast msg = Toast.makeText(FileDisplayActivity.this,
1705                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1706                         Toast.LENGTH_LONG);
1707                 msg.show();
1708
1709             } catch (NotFoundException e) {
1710                 Log_OC.e(TAG, "Error while trying to show fail message ", e);
1711             }
1712         }
1713     }
1714
1715
1716     /**
1717      * {@inheritDoc}
1718      */
1719     @Override
1720     public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading) {
1721         refreshListOfFilesFragment();
1722         FileFragment details = getSecondFragment();
1723         if (details != null && details instanceof FileDetailFragment && file.equals(details.getFile())) {
1724             if (downloading || uploading) {
1725                 ((FileDetailFragment) details).updateFileDetails(file, getAccount());
1726             } else {
1727                 if (!file.fileExists()) {
1728                     cleanSecondFragment();
1729                 } else {
1730                     ((FileDetailFragment) details).updateFileDetails(false, true);
1731                 }
1732             }
1733         }
1734
1735     }
1736
1737
1738     private void requestForDownload() {
1739         Account account = getAccount();
1740         if (!mDownloaderBinder.isDownloading(account, mWaitingToPreview)) {
1741             Intent i = new Intent(this, FileDownloader.class);
1742             i.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
1743             i.putExtra(FileDownloader.EXTRA_FILE, mWaitingToPreview);
1744             startService(i);
1745         }
1746     }
1747
1748
1749     private OCFile getCurrentDir() {
1750         OCFile file = getFile();
1751         if (file != null) {
1752             if (file.isFolder()) {
1753                 return file;
1754             } else if (getStorageManager() != null) {
1755                 String parentPath = file.getRemotePath().substring(0, file.getRemotePath().lastIndexOf(file.getFileName()));
1756                 return getStorageManager().getFileByPath(parentPath);
1757             }
1758         }
1759         return null;
1760     }
1761
1762     public void startSyncFolderOperation(OCFile folder, boolean ignoreETag) {
1763         long currentSyncTime = System.currentTimeMillis();
1764
1765         mSyncInProgress = true;
1766
1767         // perform folder synchronization
1768         RemoteOperation synchFolderOp = new SynchronizeFolderOperation(folder,
1769                 currentSyncTime,
1770                 false,
1771                 getFileOperationsHelper().isSharedSupported(),
1772                 ignoreETag,
1773                 getStorageManager(),
1774                 getAccount(),
1775                 getApplicationContext()
1776         );
1777         synchFolderOp.execute(getAccount(), this, null, null);
1778
1779         setSupportProgressBarIndeterminateVisibility(true);
1780
1781         setBackgroundText();
1782     }
1783
1784     /**
1785      * Show untrusted cert dialog
1786      */
1787     public void showUntrustedCertDialog(RemoteOperationResult result) {
1788         // Show a dialog with the certificate info
1789         SslUntrustedCertDialog dialog = SslUntrustedCertDialog.newInstanceForFullSslError((CertificateCombinedException) result.getException());
1790         FragmentManager fm = getSupportFragmentManager();
1791         FragmentTransaction ft = fm.beginTransaction();
1792         dialog.show(ft, DIALOG_UNTRUSTED_CERT);
1793     }
1794
1795     private void requestForDownload(OCFile file) {
1796         Account account = getAccount();
1797         if (!mDownloaderBinder.isDownloading(account, file)) {
1798             Intent i = new Intent(this, FileDownloader.class);
1799             i.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
1800             i.putExtra(FileDownloader.EXTRA_FILE, file);
1801             startService(i);
1802         }
1803     }
1804
1805     private void sendDownloadedFile() {
1806         getFileOperationsHelper().sendDownloadedFile(mWaitingToSend);
1807         mWaitingToSend = null;
1808     }
1809
1810
1811     /**
1812      * Requests the download of the received {@link OCFile} , updates the UI
1813      * to monitor the download progress and prepares the activity to send the file
1814      * when the download finishes.
1815      *
1816      * @param file {@link OCFile} to download and preview.
1817      */
1818     public void startDownloadForSending(OCFile file) {
1819         mWaitingToSend = file;
1820         requestForDownload(mWaitingToSend);
1821         boolean hasSecondFragment = (getSecondFragment() != null);
1822         updateFragmentsVisibility(hasSecondFragment);
1823     }
1824
1825     /**
1826      * Opens the image gallery showing the image {@link OCFile} received as parameter.
1827      *
1828      * @param file Image {@link OCFile} to show.
1829      */
1830     public void startImagePreview(OCFile file) {
1831         Intent showDetailsIntent = new Intent(this, PreviewImageActivity.class);
1832         showDetailsIntent.putExtra(EXTRA_FILE, file);
1833         showDetailsIntent.putExtra(EXTRA_ACCOUNT, getAccount());
1834         startActivity(showDetailsIntent);
1835     }
1836
1837     /**
1838      * Stars the preview of an already down media {@link OCFile}.
1839      *
1840      * @param file                  Media {@link OCFile} to preview.
1841      * @param startPlaybackPosition Media position where the playback will be started, in milliseconds.
1842      * @param autoplay              When 'true', the playback will start without user interactions.
1843      */
1844     public void startMediaPreview(OCFile file, int startPlaybackPosition, boolean autoplay) {
1845         Fragment mediaFragment = new PreviewMediaFragment(file, getAccount(), startPlaybackPosition, autoplay);
1846         setSecondFragment(mediaFragment);
1847         updateFragmentsVisibility(true);
1848         updateNavigationElementsInActionBar(file);
1849         setFile(file);
1850     }
1851
1852     /**
1853      * Stars the preview of a text file {@link OCFile}.
1854      *
1855      * @param file Text {@link OCFile} to preview.
1856      */
1857     public void startTextPreview(OCFile file) {
1858         Bundle args = new Bundle();
1859         args.putParcelable(EXTRA_FILE, file);
1860         args.putParcelable(EXTRA_ACCOUNT, getAccount());
1861         Fragment textPreviewFragment = Fragment.instantiate(getApplicationContext(), PreviewTextFragment.class.getName(), args);
1862         setSecondFragment(textPreviewFragment);
1863         updateFragmentsVisibility(true);
1864         updateNavigationElementsInActionBar(file);
1865         setFile(file);
1866     }
1867
1868     /**
1869      * Requests the download of the received {@link OCFile} , updates the UI
1870      * to monitor the download progress and prepares the activity to preview
1871      * or open the file when the download finishes.
1872      *
1873      * @param file {@link OCFile} to download and preview.
1874      */
1875     public void startDownloadForPreview(OCFile file) {
1876         Fragment detailFragment = new FileDetailFragment(file, getAccount());
1877         setSecondFragment(detailFragment);
1878         mWaitingToPreview = file;
1879         requestForDownload();
1880         updateFragmentsVisibility(true);
1881         updateNavigationElementsInActionBar(file);
1882         setFile(file);
1883     }
1884
1885
1886     public void cancelTransference(OCFile file) {
1887         getFileOperationsHelper().cancelTransference(file);
1888         if (mWaitingToPreview != null &&
1889                 mWaitingToPreview.getRemotePath().equals(file.getRemotePath())) {
1890             mWaitingToPreview = null;
1891         }
1892         if (mWaitingToSend != null &&
1893                 mWaitingToSend.getRemotePath().equals(file.getRemotePath())) {
1894             mWaitingToSend = null;
1895         }
1896         onTransferStateChanged(file, false, false);
1897     }
1898
1899     @Override
1900     public void onRefresh(boolean ignoreETag) {
1901         refreshList(ignoreETag);
1902     }
1903
1904     @Override
1905     public void onRefresh() {
1906         refreshList(true);
1907     }
1908
1909     private void refreshList(boolean ignoreETag) {
1910         OCFileListFragment listOfFiles = getListOfFilesFragment();
1911         if (listOfFiles != null) {
1912             OCFile folder = listOfFiles.getCurrentFile();
1913             if (folder != null) {
1914                 /*mFile = mContainerActivity.getStorageManager().getFileById(mFile.getFileId());
1915                 listDirectory(mFile);*/
1916                 startSyncFolderOperation(folder, ignoreETag);
1917             }
1918         }
1919     }
1920
1921     private void sortByDate(boolean ascending) {
1922         getListOfFilesFragment().sortByDate(ascending);
1923     }
1924
1925     private void sortBySize(boolean ascending) {
1926         getListOfFilesFragment().sortBySize(ascending);
1927     }
1928
1929     private void sortByName(boolean ascending) {
1930         getListOfFilesFragment().sortByName(ascending);
1931     }
1932 }