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

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author Bartek Przybylski
   5  *   @author David A. Velasco
   6  *   Copyright (C) 2011  Bartek Przybylski
   7  *   Copyright (C) 2015 ownCloud Inc.
   8  *
   9  *   This program is free software: you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License version 2,
  11  *   as published by the Free Software Foundation.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  *
  21  */
  22
  23 package com.owncloud.android.ui.activity;
  24
  25 import android.accounts.Account;
  26 import android.accounts.AccountManager;
  27 import android.accounts.AuthenticatorException;
  28 import android.annotation.TargetApi;
  29 import android.support.v7.app.AlertDialog;
  30 import android.content.BroadcastReceiver;
  31 import android.content.ComponentName;
  32 import android.content.ContentResolver;
  33 import android.content.Context;
  34 import android.content.DialogInterface;
  35 import android.content.Intent;
  36 import android.content.IntentFilter;
  37 import android.content.ServiceConnection;
  38 import android.content.SharedPreferences;
  39 import android.content.SyncRequest;
  40 import android.content.res.Resources.NotFoundException;
  41 import android.database.Cursor;
  42 import android.net.Uri;
  43 import android.os.Build;
  44 import android.os.Bundle;
  45 import android.os.IBinder;
  46 import android.preference.PreferenceManager;
  47 import android.provider.OpenableColumns;
  48 import android.support.v4.app.Fragment;
  49 import android.support.v4.app.FragmentManager;
  50 import android.support.v4.app.FragmentTransaction;
  51 import android.support.v4.content.ContextCompat;
  52 import android.support.v4.view.GravityCompat;
  53 import android.view.Menu;
  54 import android.view.MenuInflater;
  55 import android.view.MenuItem;
  56 import android.view.View;
  57 import android.widget.ProgressBar;
  58 import android.widget.RelativeLayout;
  59 import android.widget.TextView;
  60 import android.widget.Toast;
  61
  62 import com.owncloud.android.MainApp;
  63 import com.owncloud.android.R;
  64 import com.owncloud.android.datamodel.FileDataStorageManager;
  65 import com.owncloud.android.datamodel.OCFile;
  66 import com.owncloud.android.files.services.FileDownloader;
  67 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  68 import com.owncloud.android.files.services.FileUploader;
  69 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  70 import com.owncloud.android.lib.common.OwnCloudAccount;
  71 import com.owncloud.android.lib.common.OwnCloudClient;
  72 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  73 import com.owncloud.android.lib.common.OwnCloudCredentials;
  74 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  75 import com.owncloud.android.lib.common.network.CertificateCombinedException;
  76 import com.owncloud.android.lib.common.operations.RemoteOperation;
  77 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  78 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  79 import com.owncloud.android.lib.common.utils.Log_OC;
  80 import com.owncloud.android.operations.CopyFileOperation;
  81 import com.owncloud.android.operations.CreateFolderOperation;
  82 import com.owncloud.android.operations.CreateShareOperation;
  83 import com.owncloud.android.operations.MoveFileOperation;
  84 import com.owncloud.android.operations.RefreshFolderOperation;
  85 import com.owncloud.android.operations.RemoveFileOperation;
  86 import com.owncloud.android.operations.RenameFileOperation;
  87 import com.owncloud.android.operations.SynchronizeFileOperation;
  88 import com.owncloud.android.operations.UnshareLinkOperation;
  89 import com.owncloud.android.services.observer.FileObserverService;
  90 import com.owncloud.android.syncadapter.FileSyncAdapter;
  91 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  92 import com.owncloud.android.ui.dialog.CreateFolderDialogFragment;
  93 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog;
  94 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog.OnSslUntrustedCertListener;
  95 import com.owncloud.android.ui.dialog.UploadSourceDialogFragment;
  96 import com.owncloud.android.ui.fragment.FileDetailFragment;
  97 import com.owncloud.android.ui.fragment.FileFragment;
  98 import com.owncloud.android.ui.fragment.OCFileListFragment;
  99 import com.owncloud.android.ui.preview.PreviewImageActivity;
 100 import com.owncloud.android.ui.preview.PreviewImageFragment;
 101 import com.owncloud.android.ui.preview.PreviewMediaFragment;
 102 import com.owncloud.android.ui.preview.PreviewTextFragment;
 103 import com.owncloud.android.ui.preview.PreviewVideoActivity;
 104 import com.owncloud.android.utils.DisplayUtils;
 105 import com.owncloud.android.utils.ErrorMessageAdapter;
 106 import com.owncloud.android.utils.FileStorageUtils;
 107 import com.owncloud.android.utils.UriUtils;
 108
 109 import java.io.File;
 110
 111 /**
 112  * Displays, what files the user has available in his ownCloud.
 113  */
 114
 115 public class FileDisplayActivity extends HookActivity
 116         implements FileFragment.ContainerActivity,
 117         OnSslUntrustedCertListener, OnEnforceableRefreshListener {
 118
 119
 120
 121     private SyncBroadcastReceiver mSyncBroadcastReceiver;
 122     private UploadFinishReceiver mUploadFinishReceiver;
 123     private DownloadFinishReceiver mDownloadFinishReceiver;
 124     private RemoteOperationResult mLastSslUntrustedServerResult = null;
 125
 126     private boolean mDualPane;
 127     private View mLeftFragmentContainer;
 128     private View mRightFragmentContainer;
 129     private ProgressBar mProgressBar;
 130
 131     private static final String KEY_WAITING_TO_PREVIEW = "WAITING_TO_PREVIEW";
 132     private static final String KEY_SYNC_IN_PROGRESS = "SYNC_IN_PROGRESS";
 133     private static final String KEY_WAITING_TO_SEND = "WAITING_TO_SEND";
 134
 135     public static final String ACTION_DETAILS = "com.owncloud.android.ui.activity.action.DETAILS";
 136
 137     public static final int ACTION_SELECT_CONTENT_FROM_APPS = 1;
 138     public static final int ACTION_SELECT_MULTIPLE_FILES = 2;
 139     public static final int ACTION_MOVE_FILES = 3;
 140     public static final int ACTION_COPY_FILES = 4;
 141
 142     private static final String TAG = FileDisplayActivity.class.getSimpleName();
 143
 144     private static final String TAG_LIST_OF_FILES = "LIST_OF_FILES";
 145     private static final String TAG_SECOND_FRAGMENT = "SECOND_FRAGMENT";
 146
 147     private OCFile mWaitingToPreview;
 148
 149     private boolean mSyncInProgress = false;
 150
 151     private static String DIALOG_UNTRUSTED_CERT = "DIALOG_UNTRUSTED_CERT";
 152     public static String DIALOG_CREATE_FOLDER = "DIALOG_CREATE_FOLDER";
 153     private static String DIALOG_UPLOAD_SOURCE = "DIALOG_UPLOAD_SOURCE";
 154     private static String DIALOG_CERT_NOT_SAVED = "DIALOG_CERT_NOT_SAVED";
 155
 156     private OCFile mWaitingToSend;
 157
 158
 159     @Override
 160     protected void onCreate(Bundle savedInstanceState) {
 161         Log_OC.v(TAG, "onCreate() start");
 162
 163         super.onCreate(savedInstanceState); // this calls onAccountChanged() when ownCloud Account
 164                                             // is valid
 165
 166         /// grant that FileObserverService is watching favorite files
 167         if (savedInstanceState == null) {
 168             Intent initObserversIntent = FileObserverService.makeInitIntent(this);
 169             startService(initObserversIntent);
 170         }
 171
 172         /// Load of saved instance state
 173         if(savedInstanceState != null) {
 174             mWaitingToPreview = (OCFile) savedInstanceState.getParcelable(
 175                     FileDisplayActivity.KEY_WAITING_TO_PREVIEW);
 176             mSyncInProgress = savedInstanceState.getBoolean(KEY_SYNC_IN_PROGRESS);
 177             mWaitingToSend = (OCFile) savedInstanceState.getParcelable(
 178                     FileDisplayActivity.KEY_WAITING_TO_SEND);
 179         } else {
 180             mWaitingToPreview = null;
 181             mSyncInProgress = false;
 182             mWaitingToSend = null;
 183         }
 184
 185         /// USER INTERFACE
 186
 187         // Inflate and set the layout view
 188         setContentView(R.layout.files);
 189
 190         // Navigation Drawer
 191         initDrawer();
 192
 193         mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
 194         mProgressBar.setIndeterminateDrawable(
 195                 ContextCompat.getDrawable(this,
 196                         R.drawable.actionbar_progress_indeterminate_horizontal));
 197
 198         mDualPane = getResources().getBoolean(R.bool.large_land_layout);
 199         mLeftFragmentContainer = findViewById(R.id.left_fragment_container);
 200         mRightFragmentContainer = findViewById(R.id.right_fragment_container);
 201         if (savedInstanceState == null) {
 202             createMinFragments();
 203         }
 204
 205         // Action bar setup
 206         getSupportActionBar().setHomeButtonEnabled(true);       // mandatory since Android ICS,
 207                                                                 // according to the official
 208                                                                 // documentation
 209
 210         // enable ActionBar app icon to behave as action to toggle nav drawer
 211         //getSupportActionBar().setDisplayHomeAsUpEnabled(true);
 212         getSupportActionBar().setHomeButtonEnabled(true);
 213
 214         mProgressBar.setIndeterminate(mSyncInProgress);
 215         // always AFTER setContentView(...) ; to work around bug in its implementation
 216
 217         setBackgroundText();
 218
 219         Log_OC.v(TAG, "onCreate() end");
 220     }
 221
 222     @Override
 223     protected void onStart() {
 224         Log_OC.v(TAG, "onStart() start");
 225         super.onStart();
 226         Log_OC.v(TAG, "onStart() end");
 227     }
 228
 229     @Override
 230     protected void onDestroy() {
 231         Log_OC.v(TAG, "onDestroy() start");
 232         super.onDestroy();
 233         Log_OC.v(TAG, "onDestroy() end");
 234     }
 235
 236     /**
 237      * Called when the ownCloud {@link Account} associated to the Activity was just updated.
 238      */
 239     @Override
 240     protected void onAccountSet(boolean stateWasRecovered) {
 241         super.onAccountSet(stateWasRecovered);
 242         if (getAccount() != null) {
 243             /// Check whether the 'main' OCFile handled by the Activity is contained in the
 244             // current Account
 245             OCFile file = getFile();
 246             // get parent from path
 247             String parentPath = "";
 248             if (file != null) {
 249                 if (file.isDown() && file.getLastSyncDateForProperties() == 0) {
 250                     // upload in progress - right now, files are not inserted in the local
 251                     // cache until the upload is successful get parent from path
 252                     parentPath = file.getRemotePath().substring(0,
 253                             file.getRemotePath().lastIndexOf(file.getFileName()));
 254                     if (getStorageManager().getFileByPath(parentPath) ==  null)
 255                         file = null; // not able to know the directory where the file is uploading
 256                 } else {
 257                     file = getStorageManager().getFileByPath(file.getRemotePath());
 258                     // currentDir = null if not in the current Account
 259                 }
 260             }
 261             if (file == null) {
 262                 // fall back to root folder
 263                 file = getStorageManager().getFileByPath(OCFile.ROOT_PATH);  // never returns null
 264             }
 265             setFile(file);
 266
 267             if (mAccountWasSet) {
 268                 setUsernameInDrawer((RelativeLayout) findViewById(R.id.left_drawer), getAccount());
 269             }
 270
 271             if (!stateWasRecovered) {
 272                 Log_OC.d(TAG, "Initializing Fragments in onAccountChanged..");
 273                 initFragmentsWithFile();
 274                 if (file.isFolder()) {
 275                     startSyncFolderOperation(file, false);
 276                 }
 277
 278             } else {
 279                 updateFragmentsVisibility(!file.isFolder());
 280                 updateActionBarTitleAndHomeButton(file.isFolder() ? null : file);
 281             }
 282         }
 283     }
 284
 285     private void createMinFragments() {
 286         OCFileListFragment listOfFiles = new OCFileListFragment();
 287         FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
 288         transaction.add(R.id.left_fragment_container, listOfFiles, TAG_LIST_OF_FILES);
 289         transaction.commit();
 290     }
 291
 292     private void initFragmentsWithFile() {
 293         if (getAccount() != null && getFile() != null) {
 294             /// First fragment
 295             OCFileListFragment listOfFiles = getListOfFilesFragment();
 296             if (listOfFiles != null) {
 297                 listOfFiles.listDirectory(getCurrentDir());
 298                 // TODO Enable when "On Device" is recovered
 299                 // listOfFiles.listDirectory(getCurrentDir(), MainApp.getOnlyOnDevice());
 300
 301             } else {
 302                 Log_OC.e(TAG, "Still have a chance to lose the initializacion of list fragment >(");
 303             }
 304
 305             /// Second fragment
 306             OCFile file = getFile();
 307             Fragment secondFragment = chooseInitialSecondFragment(file);
 308             if (secondFragment != null) {
 309                 setSecondFragment(secondFragment);
 310                 updateFragmentsVisibility(true);
 311                 updateActionBarTitleAndHomeButton(file);
 312
 313             } else {
 314                 cleanSecondFragment();
 315                 if (file.isDown() && PreviewTextFragment.canBePreviewed(file))
 316                     startTextPreview(file);
 317             }
 318
 319         } else {
 320             Log_OC.wtf(TAG, "initFragments() called with invalid NULLs!");
 321             if (getAccount() == null) {
 322                 Log_OC.wtf(TAG, "\t account is NULL");
 323             }
 324             if (getFile() == null) {
 325                 Log_OC.wtf(TAG, "\t file is NULL");
 326             }
 327         }
 328     }
 329
 330     private Fragment chooseInitialSecondFragment(OCFile file) {
 331         Fragment secondFragment = null;
 332         if (file != null && !file.isFolder()) {
 333             if (file.isDown() && PreviewMediaFragment.canBePreviewed(file)
 334                     && file.getLastSyncDateForProperties() > 0  // temporal fix
 335                     ) {
 336                 int startPlaybackPosition =
 337                         getIntent().getIntExtra(PreviewVideoActivity.EXTRA_START_POSITION, 0);
 338                 boolean autoplay =
 339                         getIntent().getBooleanExtra(PreviewVideoActivity.EXTRA_AUTOPLAY, true);
 340                 secondFragment = new PreviewMediaFragment(file, getAccount(),
 341                         startPlaybackPosition, autoplay);
 342
 343             } else if (file.isDown() && PreviewTextFragment.canBePreviewed(file)) {
 344                 secondFragment = null;
 345             } else {
 346             secondFragment = FileDetailFragment.newInstance(file, getAccount());
 347         }
 348         }
 349         return secondFragment;
 350     }
 351
 352
 353     /**
 354      * Replaces the second fragment managed by the activity with the received as
 355      * a parameter.
 356      * <p/>
 357      * Assumes never will be more than two fragments managed at the same time.
 358      *
 359      * @param fragment New second Fragment to set.
 360      */
 361     private void setSecondFragment(Fragment fragment) {
 362         FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
 363         transaction.replace(R.id.right_fragment_container, fragment, TAG_SECOND_FRAGMENT);
 364         transaction.commit();
 365     }
 366
 367
 368     private void updateFragmentsVisibility(boolean existsSecondFragment) {
 369         if (mDualPane) {
 370             if (mLeftFragmentContainer.getVisibility() != View.VISIBLE) {
 371                 mLeftFragmentContainer.setVisibility(View.VISIBLE);
 372             }
 373             if (mRightFragmentContainer.getVisibility() != View.VISIBLE) {
 374                 mRightFragmentContainer.setVisibility(View.VISIBLE);
 375             }
 376
 377         } else if (existsSecondFragment) {
 378             if (mLeftFragmentContainer.getVisibility() != View.GONE) {
 379                 mLeftFragmentContainer.setVisibility(View.GONE);
 380             }
 381             if (mRightFragmentContainer.getVisibility() != View.VISIBLE) {
 382                 mRightFragmentContainer.setVisibility(View.VISIBLE);
 383             }
 384
 385         } else {
 386             if (mLeftFragmentContainer.getVisibility() != View.VISIBLE) {
 387                 mLeftFragmentContainer.setVisibility(View.VISIBLE);
 388             }
 389             if (mRightFragmentContainer.getVisibility() != View.GONE) {
 390                 mRightFragmentContainer.setVisibility(View.GONE);
 391             }
 392         }
 393     }
 394
 395
 396     private OCFileListFragment getListOfFilesFragment() {
 397         Fragment listOfFiles = getSupportFragmentManager().findFragmentByTag(
 398                 FileDisplayActivity.TAG_LIST_OF_FILES);
 399         if (listOfFiles != null) {
 400             return (OCFileListFragment) listOfFiles;
 401         }
 402         Log_OC.wtf(TAG, "Access to unexisting list of files fragment!!");
 403         return null;
 404     }
 405
 406     public FileFragment getSecondFragment() {
 407         Fragment second = getSupportFragmentManager().findFragmentByTag(
 408                 FileDisplayActivity.TAG_SECOND_FRAGMENT);
 409         if (second != null) {
 410             return (FileFragment) second;
 411         }
 412         return null;
 413     }
 414
 415     protected void cleanSecondFragment() {
 416         Fragment second = getSecondFragment();
 417         if (second != null) {
 418             FragmentTransaction tr = getSupportFragmentManager().beginTransaction();
 419             tr.remove(second);
 420             tr.commit();
 421         }
 422         updateFragmentsVisibility(false);
 423         updateActionBarTitleAndHomeButton(null);
 424     }
 425
 426     protected void refreshListOfFilesFragment() {
 427         OCFileListFragment fileListFragment = getListOfFilesFragment();
 428         if (fileListFragment != null) {
 429             fileListFragment.listDirectory();
 430             // TODO Enable when "On Device" is recovered ?
 431             // fileListFragment.listDirectory(MainApp.getOnlyOnDevice());
 432         }
 433     }
 434
 435     protected void refreshSecondFragment(String downloadEvent, String downloadedRemotePath,
 436                                          boolean success) {
 437         FileFragment secondFragment = getSecondFragment();
 438         boolean waitedPreview = (mWaitingToPreview != null &&
 439                 mWaitingToPreview.getRemotePath().equals(downloadedRemotePath));
 440         if (secondFragment != null && secondFragment instanceof FileDetailFragment) {
 441             FileDetailFragment detailsFragment = (FileDetailFragment) secondFragment;
 442             OCFile fileInFragment = detailsFragment.getFile();
 443             if (fileInFragment != null &&
 444                     !downloadedRemotePath.equals(fileInFragment.getRemotePath())) {
 445                 // the user browsed to other file ; forget the automatic preview
 446                 mWaitingToPreview = null;
 447
 448             } else if (downloadEvent.equals(FileDownloader.getDownloadAddedMessage())) {
 449                 // grant that the right panel updates the progress bar
 450                 detailsFragment.listenForTransferProgress();
 451                 detailsFragment.updateFileDetails(true, false);
 452
 453             } else if (downloadEvent.equals(FileDownloader.getDownloadFinishMessage())) {
 454                 //  update the right panel
 455                 boolean detailsFragmentChanged = false;
 456                 if (waitedPreview) {
 457                     if (success) {
 458                         mWaitingToPreview = getStorageManager().getFileById(
 459                                 mWaitingToPreview.getFileId());   // update the file from database,
 460                                                                   // for the local storage path
 461                         if (PreviewMediaFragment.canBePreviewed(mWaitingToPreview)) {
 462                             startMediaPreview(mWaitingToPreview, 0, true);
 463                             detailsFragmentChanged = true;
 464                         } else if (PreviewTextFragment.canBePreviewed(mWaitingToPreview)) {
 465                             startTextPreview(mWaitingToPreview);
 466                             detailsFragmentChanged = true;
 467                         } else {
 468                             getFileOperationsHelper().openFile(mWaitingToPreview);
 469                         }
 470                     }
 471                     mWaitingToPreview = null;
 472                 }
 473                 if (!detailsFragmentChanged) {
 474                     detailsFragment.updateFileDetails(false, (success));
 475                 }
 476             }
 477         }
 478     }
 479
 480     @Override
 481     public boolean onPrepareOptionsMenu(Menu menu) {
 482         boolean drawerOpen = mDrawerLayout.isDrawerOpen(GravityCompat.START);
 483         menu.findItem(R.id.action_sort).setVisible(!drawerOpen);
 484         menu.findItem(R.id.action_sync_account).setVisible(!drawerOpen);
 485
 486         return super.onPrepareOptionsMenu(menu);
 487     }
 488
 489     @Override
 490     public boolean onCreateOptionsMenu(Menu menu) {
 491         MenuInflater inflater = getMenuInflater();
 492         inflater.inflate(R.menu.main_menu, menu);
 493         menu.findItem(R.id.action_create_dir).setVisible(false);
 494         return true;
 495     }
 496
 497
 498     @Override
 499     public boolean onOptionsItemSelected(MenuItem item) {
 500         boolean retval = true;
 501         switch (item.getItemId()) {
 502             case R.id.action_sync_account: {
 503                 startSynchronization();
 504                 break;
 505             }
 506             case android.R.id.home: {
 507                 FileFragment second = getSecondFragment();
 508                 OCFile currentDir = getCurrentDir();
 509                 if (mDrawerLayout.isDrawerOpen(GravityCompat.START)) {
 510                     mDrawerLayout.closeDrawer(GravityCompat.START);
 511                 } else if((currentDir != null && currentDir.getParentId() != 0) ||
 512                         (second != null && second.getFile() != null)) {
 513                     onBackPressed();
 514
 515                 } else {
 516                     mDrawerLayout.openDrawer(GravityCompat.START);
 517                 }
 518                 break;
 519             }
 520             case R.id.action_sort: {
 521                 SharedPreferences appPreferences = PreferenceManager
 522                         .getDefaultSharedPreferences(this);
 523
 524                 // Read sorting order, default to sort by name ascending
 525                 Integer sortOrder = appPreferences
 526                         .getInt("sortOrder", FileStorageUtils.SORT_NAME);
 527
 528                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
 529                 builder.setTitle(R.string.actionbar_sort_title)
 530                         .setSingleChoiceItems(R.array.actionbar_sortby, sortOrder ,
 531                                 new DialogInterface.OnClickListener() {
 532                             public void onClick(DialogInterface dialog, int which) {
 533                                 switch (which){
 534                                     case 0:
 535                                         sortByName(true);
 536                                         break;
 537                                     case 1:
 538                                         sortByDate(false);
 539                                         break;
 540                                 }
 541
 542                                 dialog.dismiss();
 543                             }
 544                         });
 545                 builder.create().show();
 546                 break;
 547             }
 548         default:
 549             retval = super.onOptionsItemSelected(item);
 550         }
 551         return retval;
 552     }
 553
 554     public void createFolder() {
 555         CreateFolderDialogFragment dialog =
 556                 CreateFolderDialogFragment.newInstance(getCurrentDir());
 557         dialog.show(getSupportFragmentManager(), DIALOG_CREATE_FOLDER);
 558     }
 559
 560     public void uploadLocalFilesSelected() {
 561         Intent action = new Intent(this, UploadFilesActivity.class);
 562         action.putExtra(
 563                 UploadFilesActivity.EXTRA_ACCOUNT,
 564                 getAccount()
 565         );
 566         startActivityForResult(action, ACTION_SELECT_MULTIPLE_FILES);
 567     }
 568
 569     public void uploadFromOtherAppsSelected() {
 570         Intent action = new Intent(Intent.ACTION_GET_CONTENT);
 571         action = action.setType("*/*").addCategory(Intent.CATEGORY_OPENABLE);
 572         //Intent.EXTRA_ALLOW_MULTIPLE is only supported on api level 18+, Jelly Bean
 573         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 574             action.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
 575         }
 576         startActivityForResult(
 577                 Intent.createChooser(action, getString(R.string.upload_chooser_title)),
 578                 ACTION_SELECT_CONTENT_FROM_APPS
 579         );
 580     }
 581
 582     private void startSynchronization() {
 583         Log_OC.d(TAG, "Got to start sync");
 584         if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.KITKAT) {
 585             Log_OC.d(TAG, "Canceling all syncs for " + MainApp.getAuthority());
 586             ContentResolver.cancelSync(null, MainApp.getAuthority());
 587             // cancel the current synchronizations of any ownCloud account
 588             Bundle bundle = new Bundle();
 589             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
 590             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true);
 591             Log_OC.d(TAG, "Requesting sync for " + getAccount().name + " at " +
 592                     MainApp.getAuthority());
 593             ContentResolver.requestSync(
 594                     getAccount(),
 595                     MainApp.getAuthority(), bundle);
 596         } else {
 597             Log_OC.d(TAG, "Requesting sync for " + getAccount().name + " at " +
 598                     MainApp.getAuthority() + " with new API");
 599             SyncRequest.Builder builder = new SyncRequest.Builder();
 600             builder.setSyncAdapter(getAccount(), MainApp.getAuthority());
 601             builder.setExpedited(true);
 602             builder.setManual(true);
 603             builder.syncOnce();
 604
 605             // Fix bug in Android Lollipop when you click on refresh the whole account
 606             Bundle extras = new Bundle();
 607             builder.setExtras(extras);
 608
 609             SyncRequest request = builder.build();
 610             ContentResolver.requestSync(request);
 611         }
 612     }
 613
 614     /**
 615      * Called, when the user selected something for uploading
 616      *
 617      */
 618     @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
 619     @Override
 620     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 621
 622         if (requestCode == ACTION_SELECT_CONTENT_FROM_APPS && (resultCode == RESULT_OK ||
 623                 resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)) {
 624             //getClipData is only supported on api level 16+, Jelly Bean
 625             if (data.getData() == null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN){
 626                 for( int i = 0; i < data.getClipData().getItemCount(); i++){
 627                     Intent intent = new Intent();
 628                     intent.setData(data.getClipData().getItemAt(i).getUri());
 629                     requestSimpleUpload(intent, resultCode);
 630                 }
 631             }else {
 632                 requestSimpleUpload(data, resultCode);
 633             }
 634         } else if (requestCode == ACTION_SELECT_MULTIPLE_FILES && (resultCode == RESULT_OK ||
 635                 resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)) {
 636             requestMultipleUpload(data, resultCode);
 637
 638         } else if (requestCode == ACTION_MOVE_FILES && resultCode == RESULT_OK){
 639             final Intent fData = data;
 640             final int fResultCode = resultCode;
 641             getHandler().postDelayed(
 642                     new Runnable() {
 643                         @Override
 644                         public void run() {
 645                             requestMoveOperation(fData, fResultCode);
 646                         }
 647                     },
 648                     DELAY_TO_REQUEST_OPERATION_ON_ACTIVITY_RESULTS
 649             );
 650
 651         } else if (requestCode == ACTION_COPY_FILES && resultCode == RESULT_OK) {
 652
 653             final Intent fData = data;
 654             final int fResultCode = resultCode;
 655             getHandler().postDelayed(
 656                     new Runnable() {
 657                         @Override
 658                         public void run() {
 659                             requestCopyOperation(fData, fResultCode);
 660                         }
 661                     },
 662                     DELAY_TO_REQUEST_OPERATION_ON_ACTIVITY_RESULTS
 663             );
 664
 665         } else {
 666             super.onActivityResult(requestCode, resultCode, data);
 667         }
 668
 669     }
 670
 671     private void requestMultipleUpload(Intent data, int resultCode) {
 672         String[] filePaths = data.getStringArrayExtra(UploadFilesActivity.EXTRA_CHOSEN_FILES);
 673         if (filePaths != null) {
 674             String[] remotePaths = new String[filePaths.length];
 675             String remotePathBase = getCurrentDir().getRemotePath();
 676             for (int j = 0; j< remotePaths.length; j++) {
 677                 remotePaths[j] = remotePathBase + (new File(filePaths[j])).getName();
 678             }
 679
 680             Intent i = new Intent(this, FileUploader.class);
 681             i.putExtra(FileUploader.KEY_ACCOUNT, getAccount());
 682             i.putExtra(FileUploader.KEY_LOCAL_FILE, filePaths);
 683             i.putExtra(FileUploader.KEY_REMOTE_FILE, remotePaths);
 684             i.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_MULTIPLE_FILES);
 685             if (resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)
 686                 i.putExtra(FileUploader.KEY_LOCAL_BEHAVIOUR, FileUploader.LOCAL_BEHAVIOUR_MOVE);
 687             startService(i);
 688
 689         } else {
 690             Log_OC.d(TAG, "User clicked on 'Update' with no selection");
 691             Toast t = Toast.makeText(this, getString(R.string.filedisplay_no_file_selected),
 692                     Toast.LENGTH_LONG);
 693             t.show();
 694             return;
 695         }
 696     }
 697
 698
 699     private void requestSimpleUpload(Intent data, int resultCode) {
 700         String filePath = null;
 701         String mimeType = null;
 702
 703         Uri selectedImageUri = data.getData();
 704
 705         try {
 706             mimeType = getContentResolver().getType(selectedImageUri);
 707
 708             String fileManagerString = selectedImageUri.getPath();
 709             String selectedImagePath = UriUtils.getLocalPath(selectedImageUri, this);
 710
 711             if (selectedImagePath != null)
 712                 filePath = selectedImagePath;
 713             else
 714                 filePath = fileManagerString;
 715
 716         } catch (Exception e) {
 717             Log_OC.e(TAG, "Unexpected exception when trying to read the result of " +
 718                     "Intent.ACTION_GET_CONTENT", e);
 719
 720         } finally {
 721             if (filePath == null) {
 722                 Log_OC.e(TAG, "Couldn't resolve path to file");
 723                 Toast t = Toast.makeText(
 724                         this, getString(R.string.filedisplay_unexpected_bad_get_content),
 725                         Toast.LENGTH_LONG
 726                 );
 727                 t.show();
 728                 return;
 729             }
 730         }
 731
 732         Intent i = new Intent(this, FileUploader.class);
 733         i.putExtra(FileUploader.KEY_ACCOUNT, getAccount());
 734         OCFile currentDir = getCurrentDir();
 735         String remotePath =  (currentDir != null) ? currentDir.getRemotePath() : OCFile.ROOT_PATH;
 736
 737         if (filePath.startsWith(UriUtils.URI_CONTENT_SCHEME)) {
 738             Cursor cursor = getContentResolver().query(Uri.parse(filePath), null, null, null, null);
 739             try {
 740                 if (cursor != null && cursor.moveToFirst()) {
 741                     String displayName = cursor.getString(cursor.getColumnIndex(
 742                             OpenableColumns.DISPLAY_NAME));
 743                     Log_OC.v(TAG, "Display Name: " + displayName );
 744
 745                     displayName.replace(File.separatorChar, '_');
 746                     displayName.replace(File.pathSeparatorChar, '_');
 747                     remotePath += displayName + DisplayUtils.getComposedFileExtension(filePath);
 748
 749                 }
 750                 // and what happens in case of error?; wrong target name for the upload
 751             } finally {
 752                 cursor.close();
 753             }
 754
 755         } else {
 756             remotePath += new File(filePath).getName();
 757         }
 758
 759         i.putExtra(FileUploader.KEY_LOCAL_FILE, filePath);
 760         i.putExtra(FileUploader.KEY_REMOTE_FILE, remotePath);
 761         i.putExtra(FileUploader.KEY_MIME_TYPE, mimeType);
 762         i.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_SINGLE_FILE);
 763         if (resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)
 764         i.putExtra(FileUploader.KEY_LOCAL_BEHAVIOUR, FileUploader.LOCAL_BEHAVIOUR_MOVE);
 765         startService(i);
 766     }
 767
 768     /**
 769      * Request the operation for moving the file/folder from one path to another
 770      *
 771      * @param data       Intent received
 772      * @param resultCode Result code received
 773      */
 774     private void requestMoveOperation(Intent data, int resultCode) {
 775         OCFile folderToMoveAt = (OCFile) data.getParcelableExtra(FolderPickerActivity.EXTRA_FOLDER);
 776         OCFile targetFile = (OCFile) data.getParcelableExtra(FolderPickerActivity.EXTRA_FILE);
 777         getFileOperationsHelper().moveFile(folderToMoveAt, targetFile);
 778     }
 779
 780     /**
 781      * Request the operation for copying the file/folder from one path to another
 782      *
 783      * @param data       Intent received
 784      * @param resultCode Result code received
 785      */
 786     private void requestCopyOperation(Intent data, int resultCode) {
 787         OCFile folderToMoveAt = data.getParcelableExtra(FolderPickerActivity.EXTRA_FOLDER);
 788         OCFile targetFile = data.getParcelableExtra(FolderPickerActivity.EXTRA_FILE);
 789         getFileOperationsHelper().copyFile(folderToMoveAt, targetFile);
 790     }
 791
 792     @Override
 793     public void onBackPressed() {
 794         boolean isFabOpen = isFabOpen();
 795         boolean isDrawerOpen = isDrawerOpen();
 796
 797         /*
 798          * BackPressed priority/hierarchy:
 799          *    1. close drawer if opened
 800          *    2. close FAB if open (only if drawer isn't open)
 801          *    3. navigate up (only if drawer and FAB aren't open)
 802          */
 803         if(isDrawerOpen && isFabOpen) {
 804             // close drawer first
 805             super.onBackPressed();
 806         } else if(isDrawerOpen && !isFabOpen) {
 807             // close drawer
 808             super.onBackPressed();
 809         } else if (!isDrawerOpen && isFabOpen) {
 810             // close fab
 811             getListOfFilesFragment().getFabMain().collapse();
 812         } else {
 813             // all closed
 814             OCFileListFragment listOfFiles = getListOfFilesFragment();
 815             if (mDualPane || getSecondFragment() == null) {
 816                 OCFile currentDir = getCurrentDir();
 817                 if (currentDir == null || currentDir.getParentId() == FileDataStorageManager.ROOT_PARENT_ID) {
 818                     finish();
 819                     return;
 820                 }
 821                 if (listOfFiles != null) {  // should never be null, indeed
 822                     listOfFiles.onBrowseUp();
 823                 }
 824             }
 825             if (listOfFiles != null) {  // should never be null, indeed
 826                 setFile(listOfFiles.getCurrentFile());
 827             }
 828             cleanSecondFragment();
 829         }
 830     }
 831
 832     @Override
 833     protected void onSaveInstanceState(Bundle outState) {
 834         // responsibility of restore is preferred in onCreate() before than in
 835         // onRestoreInstanceState when there are Fragments involved
 836         Log_OC.v(TAG, "onSaveInstanceState() start");
 837         super.onSaveInstanceState(outState);
 838         outState.putParcelable(FileDisplayActivity.KEY_WAITING_TO_PREVIEW, mWaitingToPreview);
 839         outState.putBoolean(FileDisplayActivity.KEY_SYNC_IN_PROGRESS, mSyncInProgress);
 840         //outState.putBoolean(FileDisplayActivity.KEY_REFRESH_SHARES_IN_PROGRESS,
 841         // mRefreshSharesInProgress);
 842         outState.putParcelable(FileDisplayActivity.KEY_WAITING_TO_SEND, mWaitingToSend);
 843
 844         Log_OC.v(TAG, "onSaveInstanceState() end");
 845     }
 846
 847
 848     @Override
 849     protected void onResume() {
 850         Log_OC.v(TAG, "onResume() start");
 851         super.onResume();
 852         // refresh Navigation Drawer account list
 853         mNavigationDrawerAdapter.updateAccountList();
 854
 855         // refresh list of files
 856         refreshListOfFilesFragment();
 857
 858         // Listen for sync messages
 859         IntentFilter syncIntentFilter = new IntentFilter(FileSyncAdapter.EVENT_FULL_SYNC_START);
 860         syncIntentFilter.addAction(FileSyncAdapter.EVENT_FULL_SYNC_END);
 861         syncIntentFilter.addAction(FileSyncAdapter.EVENT_FULL_SYNC_FOLDER_CONTENTS_SYNCED);
 862         syncIntentFilter.addAction(RefreshFolderOperation.EVENT_SINGLE_FOLDER_CONTENTS_SYNCED);
 863         syncIntentFilter.addAction(RefreshFolderOperation.EVENT_SINGLE_FOLDER_SHARES_SYNCED);
 864         mSyncBroadcastReceiver = new SyncBroadcastReceiver();
 865         registerReceiver(mSyncBroadcastReceiver, syncIntentFilter);
 866         //LocalBroadcastManager.getInstance(this).registerReceiver(mSyncBroadcastReceiver,
 867         // syncIntentFilter);
 868
 869         // Listen for upload messages
 870         IntentFilter uploadIntentFilter = new IntentFilter(FileUploader.getUploadFinishMessage());
 871         mUploadFinishReceiver = new UploadFinishReceiver();
 872         registerReceiver(mUploadFinishReceiver, uploadIntentFilter);
 873
 874         // Listen for download messages
 875         IntentFilter downloadIntentFilter = new IntentFilter(
 876                 FileDownloader.getDownloadAddedMessage());
 877         downloadIntentFilter.addAction(FileDownloader.getDownloadFinishMessage());
 878         mDownloadFinishReceiver = new DownloadFinishReceiver();
 879         registerReceiver(mDownloadFinishReceiver, downloadIntentFilter);
 880
 881         Log_OC.v(TAG, "onResume() end");
 882
 883     }
 884
 885
 886     @Override
 887     protected void onPause() {
 888         Log_OC.v(TAG, "onPause() start");
 889         if (mSyncBroadcastReceiver != null) {
 890             unregisterReceiver(mSyncBroadcastReceiver);
 891             //LocalBroadcastManager.getInstance(this).unregisterReceiver(mSyncBroadcastReceiver);
 892             mSyncBroadcastReceiver = null;
 893         }
 894         if (mUploadFinishReceiver != null) {
 895             unregisterReceiver(mUploadFinishReceiver);
 896             mUploadFinishReceiver = null;
 897         }
 898         if (mDownloadFinishReceiver != null) {
 899             unregisterReceiver(mDownloadFinishReceiver);
 900             mDownloadFinishReceiver = null;
 901         }
 902
 903         super.onPause();
 904         Log_OC.v(TAG, "onPause() end");
 905     }
 906
 907     public boolean isFabOpen() {
 908         if(getListOfFilesFragment() != null && getListOfFilesFragment().getFabMain() != null && getListOfFilesFragment().getFabMain().isExpanded()) {
 909             return true;
 910         } else {
 911             return false;
 912         }
 913     }
 914
 915
 916     private class SyncBroadcastReceiver extends BroadcastReceiver {
 917
 918         /**
 919          * {@link BroadcastReceiver} to enable syncing feedback in UI
 920          */
 921         @Override
 922         public void onReceive(Context context, Intent intent) {
 923             try {
 924                 String event = intent.getAction();
 925                 Log_OC.d(TAG, "Received broadcast " + event);
 926                 String accountName = intent.getStringExtra(FileSyncAdapter.EXTRA_ACCOUNT_NAME);
 927                 String synchFolderRemotePath =
 928                         intent.getStringExtra(FileSyncAdapter.EXTRA_FOLDER_PATH);
 929                 RemoteOperationResult synchResult =
 930                         (RemoteOperationResult)intent.getSerializableExtra(
 931                                 FileSyncAdapter.EXTRA_RESULT);
 932                 boolean sameAccount = (getAccount() != null &&
 933                         accountName.equals(getAccount().name) && getStorageManager() != null);
 934
 935                 if (sameAccount) {
 936
 937                     if (FileSyncAdapter.EVENT_FULL_SYNC_START.equals(event)) {
 938                         mSyncInProgress = true;
 939
 940                     } else {
 941                         OCFile currentFile = (getFile() == null) ? null :
 942                                 getStorageManager().getFileByPath(getFile().getRemotePath());
 943                         OCFile currentDir = (getCurrentDir() == null) ? null :
 944                                 getStorageManager().getFileByPath(getCurrentDir().getRemotePath());
 945
 946                         if (currentDir == null) {
 947                             // current folder was removed from the server
 948                             Toast.makeText( FileDisplayActivity.this,
 949                                             String.format(
 950                                                     getString(R.string.
 951                                                             sync_current_folder_was_removed),
 952                                                    synchFolderRemotePath),
 953                                             Toast.LENGTH_LONG)
 954                                 .show();
 955
 956                             browseToRoot();
 957
 958                         } else {
 959                             if (currentFile == null && !getFile().isFolder()) {
 960                                 // currently selected file was removed in the server, and now we
 961                                 // know it
 962                                 cleanSecondFragment();
 963                                 currentFile = currentDir;
 964                             }
 965
 966                             if (synchFolderRemotePath != null &&
 967                                     currentDir.getRemotePath().equals(synchFolderRemotePath)) {
 968                                 OCFileListFragment fileListFragment = getListOfFilesFragment();
 969                                 if (fileListFragment != null) {
 970                                     fileListFragment.listDirectory();
 971                                     // TODO Enable when "On Device" is recovered ?
 972                                     // fileListFragment.listDirectory(currentDir,
 973                                     // MainApp.getOnlyOnDevice());
 974                                 }
 975                             }
 976                             setFile(currentFile);
 977                         }
 978
 979                         mSyncInProgress = (!FileSyncAdapter.EVENT_FULL_SYNC_END.equals(event) &&
 980                                 !RefreshFolderOperation.EVENT_SINGLE_FOLDER_SHARES_SYNCED
 981                                         .equals(event));
 982
 983                         if (RefreshFolderOperation.EVENT_SINGLE_FOLDER_CONTENTS_SYNCED.
 984                                     equals(event) &&/// TODO refactor and make common
 985
 986                                 synchResult != null && !synchResult.isSuccess() &&
 987                                 (synchResult.getCode() == ResultCode.UNAUTHORIZED ||
 988                                         synchResult.isIdPRedirection() ||
 989                                         (synchResult.isException() && synchResult.getException()
 990                                                 instanceof AuthenticatorException))) {
 991
 992
 993                             try {
 994                                 OwnCloudClient client;
 995                                 OwnCloudAccount ocAccount =
 996                                         new OwnCloudAccount(getAccount(), context);
 997                                 client = (OwnCloudClientManagerFactory.getDefaultSingleton().
 998                                         removeClientFor(ocAccount));
 999                                 if (client != null) {
1000                                     OwnCloudCredentials cred = client.getCredentials();
1001                                     if (cred != null) {
1002                                         AccountManager am = AccountManager.get(context);
1003                                         if (cred.authTokenExpires()) {
1004                                             am.invalidateAuthToken(
1005                                                     getAccount().type,
1006                                                     cred.getAuthToken()
1007                                             );
1008                                         } else {
1009                                             am.clearPassword(getAccount());
1010                                         }
1011                                     }
1012                                 }
1013                                 requestCredentialsUpdate();
1014
1015                             } catch (AccountNotFoundException e) {
1016                                 Log_OC.e(TAG, "Account " + getAccount() + " was removed!", e);
1017                             }
1018
1019                         }
1020                     }
1021                     removeStickyBroadcast(intent);
1022                     Log_OC.d(TAG, "Setting progress visibility to " + mSyncInProgress);
1023                     mProgressBar.setIndeterminate(mSyncInProgress);
1024                     //mProgressBar.setVisibility((mSyncInProgress) ? View.VISIBLE : View.INVISIBLE);
1025                     //setSupportProgressBarIndeterminateVisibility(mSyncInProgress
1026                     /*|| mRefreshSharesInProgress*/ //);
1027
1028                     setBackgroundText();
1029
1030                 }
1031
1032                 if (synchResult != null) {
1033                     if (synchResult.getCode().equals(
1034                             RemoteOperationResult.ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED)) {
1035                         mLastSslUntrustedServerResult = synchResult;
1036                     }
1037                 }
1038             } catch (RuntimeException e) {
1039                 // avoid app crashes after changing the serial id of RemoteOperationResult
1040                 // in owncloud library with broadcast notifications pending to process
1041                 removeStickyBroadcast(intent);
1042             }
1043         }
1044     }
1045
1046     /**
1047      * Show a text message on screen view for notifying user if content is
1048      * loading or folder is empty
1049      */
1050     private void setBackgroundText() {
1051         OCFileListFragment ocFileListFragment = getListOfFilesFragment();
1052         if (ocFileListFragment != null) {
1053             int message = R.string.file_list_loading;
1054             if (!mSyncInProgress) {
1055                 // In case file list is empty
1056                 message = R.string.file_list_empty;
1057             }
1058             ocFileListFragment.setMessageForEmptyList(getString(message));
1059         } else {
1060             Log_OC.e(TAG, "OCFileListFragment is null");
1061         }
1062     }
1063
1064     /**
1065      * Once the file upload has finished -> update view
1066      */
1067     private class UploadFinishReceiver extends BroadcastReceiver {
1068         /**
1069          * Once the file upload has finished -> update view
1070          *
1071          * @author David A. Velasco
1072          * {@link BroadcastReceiver} to enable upload feedback in UI
1073          */
1074         @Override
1075         public void onReceive(Context context, Intent intent) {
1076             try {
1077                 String uploadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
1078                 String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
1079                 boolean sameAccount = getAccount() != null && accountName.equals(getAccount().name);
1080                 OCFile currentDir = getCurrentDir();
1081                 boolean isDescendant = (currentDir != null) && (uploadedRemotePath != null) &&
1082                         (uploadedRemotePath.startsWith(currentDir.getRemotePath()));
1083
1084                 if (sameAccount && isDescendant) {
1085                     refreshListOfFilesFragment();
1086                 }
1087
1088                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT,
1089                         false);
1090                 boolean renamedInUpload = getFile().getRemotePath().
1091                         equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
1092                 boolean sameFile = getFile().getRemotePath().equals(uploadedRemotePath) ||
1093                         renamedInUpload;
1094                 FileFragment details = getSecondFragment();
1095                 boolean detailFragmentIsShown = (details != null &&
1096                         details instanceof FileDetailFragment);
1097
1098                 if (sameAccount && sameFile && detailFragmentIsShown) {
1099                     if (uploadWasFine) {
1100                         setFile(getStorageManager().getFileByPath(uploadedRemotePath));
1101                     }
1102                     if (renamedInUpload) {
1103                         String newName = (new File(uploadedRemotePath)).getName();
1104                         Toast msg = Toast.makeText(
1105                                 context,
1106                                 String.format(
1107                                         getString(R.string.filedetails_renamed_in_upload_msg),
1108                                         newName),
1109                                 Toast.LENGTH_LONG);
1110                         msg.show();
1111                     }
1112                     if (uploadWasFine || getFile().fileExists()) {
1113                         ((FileDetailFragment) details).updateFileDetails(false, true);
1114                     } else {
1115                         cleanSecondFragment();
1116                     }
1117
1118                     // Force the preview if the file is an image or text file
1119                     if (uploadWasFine) {
1120                         OCFile ocFile = getFile();
1121                         if (PreviewImageFragment.canBePreviewed(ocFile))
1122                             startImagePreview(getFile());
1123                         else if (PreviewTextFragment.canBePreviewed(ocFile))
1124                             startTextPreview(ocFile);
1125                         // TODO what about other kind of previews?
1126                     }
1127                 }
1128
1129                 mProgressBar.setIndeterminate(false);
1130             } finally {
1131                 if (intent != null) {
1132                     removeStickyBroadcast(intent);
1133                 }
1134             }
1135
1136         }
1137
1138     }
1139
1140
1141     /**
1142      * Class waiting for broadcast events from the {@link FileDownloader} service.
1143      *
1144      * Updates the UI when a download is started or finished, provided that it is relevant for the
1145      * current folder.
1146      */
1147     private class DownloadFinishReceiver extends BroadcastReceiver {
1148
1149         //int refreshCounter = 0;
1150         @Override
1151         public void onReceive(Context context, Intent intent) {
1152             try {
1153                 boolean sameAccount = isSameAccount(context, intent);
1154                 String downloadedRemotePath =
1155                         intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
1156                 boolean isDescendant = isDescendant(downloadedRemotePath);
1157
1158                 if (sameAccount && isDescendant) {
1159                     String linkedToRemotePath =
1160                             intent.getStringExtra(FileDownloader.EXTRA_LINKED_TO_PATH);
1161                     if (linkedToRemotePath == null || isAscendant(linkedToRemotePath)) {
1162                         //Log_OC.v(TAG, "refresh #" + ++refreshCounter);
1163                         refreshListOfFilesFragment();
1164                     }
1165                     refreshSecondFragment(
1166                             intent.getAction(),
1167                             downloadedRemotePath,
1168                             intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false)
1169                     );
1170                 }
1171
1172                 if (mWaitingToSend != null) {
1173                     mWaitingToSend =
1174                             getStorageManager().getFileByPath(mWaitingToSend.getRemotePath());
1175                     if (mWaitingToSend.isDown()) {
1176                         sendDownloadedFile();
1177                     }
1178                 }
1179
1180             } finally {
1181                 if (intent != null) {
1182                     removeStickyBroadcast(intent);
1183                 }
1184             }
1185         }
1186
1187         private boolean isDescendant(String downloadedRemotePath) {
1188             OCFile currentDir = getCurrentDir();
1189             return (
1190                 currentDir != null &&
1191                 downloadedRemotePath != null &&
1192                 downloadedRemotePath.startsWith(currentDir.getRemotePath())
1193             );
1194         }
1195
1196         private boolean isAscendant(String linkedToRemotePath) {
1197             OCFile currentDir = getCurrentDir();
1198             return (
1199                 currentDir != null &&
1200                 currentDir.getRemotePath().startsWith(linkedToRemotePath)
1201             );
1202         }
1203
1204         private boolean isSameAccount(Context context, Intent intent) {
1205             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
1206             return (accountName != null && getAccount() != null &&
1207                     accountName.equals(getAccount().name));
1208         }
1209     }
1210
1211
1212     public void browseToRoot() {
1213         OCFileListFragment listOfFiles = getListOfFilesFragment();
1214         if (listOfFiles != null) {  // should never be null, indeed
1215             OCFile root = getStorageManager().getFileByPath(OCFile.ROOT_PATH);
1216             listOfFiles.listDirectory(root);
1217             // TODO Enable when "On Device" is recovered ?
1218             // listOfFiles.listDirectory(root, MainApp.getOnlyOnDevice());
1219             setFile(listOfFiles.getCurrentFile());
1220             startSyncFolderOperation(root, false);
1221         }
1222         cleanSecondFragment();
1223     }
1224
1225
1226     /**
1227      * {@inheritDoc}
1228      * <p/>
1229      * Updates action bar and second fragment, if in dual pane mode.
1230      */
1231     @Override
1232     public void onBrowsedDownTo(OCFile directory) {
1233         setFile(directory);
1234         cleanSecondFragment();
1235         // Sync Folder
1236         startSyncFolderOperation(directory, false);
1237     }
1238
1239     /**
1240      * Shows the information of the {@link OCFile} received as a
1241      * parameter in the second fragment.
1242      *
1243      * @param file {@link OCFile} whose details will be shown
1244      */
1245     @Override
1246     public void showDetails(OCFile file) {
1247         Fragment detailFragment = FileDetailFragment.newInstance(file, getAccount());
1248         setSecondFragment(detailFragment);
1249         updateFragmentsVisibility(true);
1250         updateActionBarTitleAndHomeButton(file);
1251         setFile(file);
1252     }
1253
1254     @Override
1255     protected void updateActionBarTitleAndHomeButton(OCFile chosenFile) {
1256         if (mDualPane) {
1257             // in dual pane mode, keep the focus of title an action bar in the current folder
1258             super.updateActionBarTitleAndHomeButton(getCurrentDir());
1259
1260         } else {
1261             super.updateActionBarTitleAndHomeButton(chosenFile);
1262         }
1263
1264     }
1265
1266     @Override
1267     protected ServiceConnection newTransferenceServiceConnection() {
1268         return new ListServiceConnection();
1269     }
1270
1271     /**
1272      * Defines callbacks for service binding, passed to bindService()
1273      */
1274     private class ListServiceConnection implements ServiceConnection {
1275
1276         @Override
1277         public void onServiceConnected(ComponentName component, IBinder service) {
1278             if (component.equals(new ComponentName(
1279                     FileDisplayActivity.this, FileDownloader.class))) {
1280                 Log_OC.d(TAG, "Download service connected");
1281                 mDownloaderBinder = (FileDownloaderBinder) service;
1282                 if (mWaitingToPreview != null)
1283                     if (getStorageManager() != null) {
1284                          // update the file
1285                         mWaitingToPreview =
1286                                 getStorageManager().getFileById(mWaitingToPreview.getFileId());
1287                         if (!mWaitingToPreview.isDown()) {
1288                             requestForDownload();
1289                         }
1290                     }
1291
1292             } else if (component.equals(new ComponentName(FileDisplayActivity.this,
1293                     FileUploader.class))) {
1294                 Log_OC.d(TAG, "Upload service connected");
1295                 mUploaderBinder = (FileUploaderBinder) service;
1296             } else {
1297                 return;
1298             }
1299             // a new chance to get the mDownloadBinder through
1300             // getFileDownloadBinder() - THIS IS A MESS
1301             OCFileListFragment listOfFiles = getListOfFilesFragment();
1302             if (listOfFiles != null) {
1303                 listOfFiles.listDirectory();
1304                 // TODO Enable when "On Device" is recovered ?
1305                 // listOfFiles.listDirectory(MainApp.getOnlyOnDevice());
1306             }
1307             FileFragment secondFragment = getSecondFragment();
1308             if (secondFragment != null && secondFragment instanceof FileDetailFragment) {
1309                 FileDetailFragment detailFragment = (FileDetailFragment) secondFragment;
1310                 detailFragment.listenForTransferProgress();
1311                 detailFragment.updateFileDetails(false, false);
1312             }
1313         }
1314
1315         @Override
1316         public void onServiceDisconnected(ComponentName component) {
1317             if (component.equals(new ComponentName(FileDisplayActivity.this,
1318                     FileDownloader.class))) {
1319                 Log_OC.d(TAG, "Download service disconnected");
1320                 mDownloaderBinder = null;
1321             } else if (component.equals(new ComponentName(FileDisplayActivity.this,
1322                     FileUploader.class))) {
1323                 Log_OC.d(TAG, "Upload service disconnected");
1324                 mUploaderBinder = null;
1325             }
1326         }
1327     }
1328
1329     @Override
1330     public void onSavedCertificate() {
1331         startSyncFolderOperation(getCurrentDir(), false);
1332     }
1333
1334
1335     @Override
1336     public void onFailedSavingCertificate() {
1337         ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(
1338                 R.string.ssl_validator_not_saved, new String[]{}, R.string.common_ok, -1, -1
1339         );
1340         dialog.show(getSupportFragmentManager(), DIALOG_CERT_NOT_SAVED);
1341     }
1342
1343     @Override
1344     public void onCancelCertificate() {
1345         // nothing to do
1346     }
1347
1348     /**
1349      * Updates the view associated to the activity after the finish of some operation over files
1350      * in the current account.
1351      *
1352      * @param operation Removal operation performed.
1353      * @param result    Result of the removal.
1354      */
1355     @Override
1356     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
1357         super.onRemoteOperationFinish(operation, result);
1358
1359         if (operation instanceof RemoveFileOperation) {
1360             onRemoveFileOperationFinish((RemoveFileOperation) operation, result);
1361
1362         } else if (operation instanceof RenameFileOperation) {
1363             onRenameFileOperationFinish((RenameFileOperation) operation, result);
1364
1365         } else if (operation instanceof SynchronizeFileOperation) {
1366             onSynchronizeFileOperationFinish((SynchronizeFileOperation) operation, result);
1367
1368         } else if (operation instanceof CreateFolderOperation) {
1369             onCreateFolderOperationFinish((CreateFolderOperation) operation, result);
1370
1371         } else if (operation instanceof CreateShareOperation) {
1372             onCreateShareOperationFinish((CreateShareOperation) operation, result);
1373
1374         } else if (operation instanceof UnshareLinkOperation) {
1375             onUnshareLinkOperationFinish((UnshareLinkOperation) operation, result);
1376
1377         } else if (operation instanceof MoveFileOperation) {
1378             onMoveFileOperationFinish((MoveFileOperation) operation, result);
1379
1380         } else if (operation instanceof CopyFileOperation) {
1381             onCopyFileOperationFinish((CopyFileOperation) operation, result);
1382         }
1383
1384     }
1385     private void onCreateShareOperationFinish(CreateShareOperation operation,
1386                                               RemoteOperationResult result) {
1387         if (result.isSuccess()) {
1388             refreshShowDetails();
1389             refreshListOfFilesFragment();
1390         }
1391     }
1392
1393     private void onUnshareLinkOperationFinish(UnshareLinkOperation operation,
1394                                               RemoteOperationResult result) {
1395         if (result.isSuccess()) {
1396             refreshShowDetails();
1397             refreshListOfFilesFragment();
1398
1399         } else if (result.getCode() == ResultCode.SHARE_NOT_FOUND) {
1400             cleanSecondFragment();
1401             refreshListOfFilesFragment();
1402         }
1403     }
1404
1405     private void refreshShowDetails() {
1406         FileFragment details = getSecondFragment();
1407         if (details != null) {
1408             OCFile file = details.getFile();
1409             if (file != null) {
1410                 file = getStorageManager().getFileByPath(file.getRemotePath());
1411                 if (details instanceof PreviewMediaFragment) {
1412                     // Refresh  OCFile of the fragment
1413                     ((PreviewMediaFragment) details).updateFile(file);
1414                 } else if (details instanceof PreviewTextFragment) {
1415                     // Refresh  OCFile of the fragment
1416                     ((PreviewTextFragment) details).updateFile(file);
1417                 } else {
1418                     showDetails(file);
1419                 }
1420             }
1421             invalidateOptionsMenu();
1422         }
1423     }
1424
1425     /**
1426      * Updates the view associated to the activity after the finish of an operation trying to
1427      * remove a file.
1428      *
1429      * @param operation     Removal operation performed.
1430      * @param result        Result of the removal.
1431      */
1432     private void onRemoveFileOperationFinish(RemoveFileOperation operation,
1433                                              RemoteOperationResult result) {
1434         dismissLoadingDialog();
1435
1436         Toast msg = Toast.makeText(this,
1437                 ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1438                 Toast.LENGTH_LONG);
1439         msg.show();
1440
1441         if (result.isSuccess()) {
1442             OCFile removedFile = operation.getFile();
1443             FileFragment second = getSecondFragment();
1444             if (second != null && removedFile.equals(second.getFile())) {
1445                 if (second instanceof PreviewMediaFragment) {
1446                     ((PreviewMediaFragment) second).stopPreview(true);
1447                 }
1448                 setFile(getStorageManager().getFileById(removedFile.getParentId()));
1449                 cleanSecondFragment();
1450             }
1451             if (getStorageManager().getFileById(removedFile.getParentId()).equals(getCurrentDir())){
1452                 refreshListOfFilesFragment();
1453             }
1454             invalidateOptionsMenu();
1455         } else {
1456             if (result.isSslRecoverableException()) {
1457                 mLastSslUntrustedServerResult = result;
1458                 showUntrustedCertDialog(mLastSslUntrustedServerResult);
1459             }
1460         }
1461     }
1462
1463
1464     /**
1465      * Updates the view associated to the activity after the finish of an operation trying to move a
1466      * file.
1467      *
1468      * @param operation Move operation performed.
1469      * @param result    Result of the move operation.
1470      */
1471     private void onMoveFileOperationFinish(MoveFileOperation operation,
1472                                            RemoteOperationResult result) {
1473         if (result.isSuccess()) {
1474             dismissLoadingDialog();
1475             refreshListOfFilesFragment();
1476         } else {
1477             dismissLoadingDialog();
1478             try {
1479                 Toast msg = Toast.makeText(FileDisplayActivity.this,
1480                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1481                         Toast.LENGTH_LONG);
1482                 msg.show();
1483
1484             } catch (NotFoundException e) {
1485                 Log_OC.e(TAG, "Error while trying to show fail message ", e);
1486             }
1487         }
1488     }
1489
1490     /**
1491      * Updates the view associated to the activity after the finish of an operation trying to copy a
1492      * file.
1493      *
1494      * @param operation Copy operation performed.
1495      * @param result    Result of the copy operation.
1496      */
1497     private void onCopyFileOperationFinish(CopyFileOperation operation, RemoteOperationResult result) {
1498         if (result.isSuccess()) {
1499             dismissLoadingDialog();
1500             refreshListOfFilesFragment();
1501         } else {
1502             dismissLoadingDialog();
1503             try {
1504                 Toast msg = Toast.makeText(FileDisplayActivity.this,
1505                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1506                         Toast.LENGTH_LONG);
1507                 msg.show();
1508
1509             } catch (NotFoundException e) {
1510                 Log_OC.e(TAG, "Error while trying to show fail message ", e);
1511             }
1512         }
1513     }
1514
1515     /**
1516      * Updates the view associated to the activity after the finish of an operation trying to rename
1517      * a file.
1518      *
1519      * @param operation     Renaming operation performed.
1520      * @param result        Result of the renaming.
1521      */
1522     private void onRenameFileOperationFinish(RenameFileOperation operation,
1523                                              RemoteOperationResult result) {
1524         dismissLoadingDialog();
1525         OCFile renamedFile = operation.getFile();
1526         if (result.isSuccess()) {
1527             FileFragment details = getSecondFragment();
1528             if (details != null) {
1529                 if (details instanceof FileDetailFragment &&
1530                         renamedFile.equals(details.getFile()) ) {
1531                     ((FileDetailFragment) details).updateFileDetails(renamedFile, getAccount());
1532                     showDetails(renamedFile);
1533
1534                 } else if (details instanceof PreviewMediaFragment &&
1535                         renamedFile.equals(details.getFile())) {
1536                     ((PreviewMediaFragment) details).updateFile(renamedFile);
1537                     if (PreviewMediaFragment.canBePreviewed(renamedFile)) {
1538                         int position = ((PreviewMediaFragment) details).getPosition();
1539                         startMediaPreview(renamedFile, position, true);
1540                     } else {
1541                         getFileOperationsHelper().openFile(renamedFile);
1542                     }
1543                 } else if (details instanceof PreviewTextFragment &&
1544                         renamedFile.equals(details.getFile())) {
1545                     ((PreviewTextFragment) details).updateFile(renamedFile);
1546                     if (PreviewTextFragment.canBePreviewed(renamedFile)) {
1547                         startTextPreview(renamedFile);
1548                     } else {
1549                         getFileOperationsHelper().openFile(renamedFile);
1550                     }
1551                 }
1552             }
1553
1554             if (getStorageManager().getFileById(renamedFile.getParentId()).equals(getCurrentDir())){
1555                 refreshListOfFilesFragment();
1556             }
1557
1558         } else {
1559             Toast msg = Toast.makeText(this,
1560                     ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1561                     Toast.LENGTH_LONG);
1562             msg.show();
1563
1564             if (result.isSslRecoverableException()) {
1565                 mLastSslUntrustedServerResult = result;
1566                 showUntrustedCertDialog(mLastSslUntrustedServerResult);
1567             }
1568         }
1569     }
1570
1571     private void onSynchronizeFileOperationFinish(SynchronizeFileOperation operation,
1572                                                   RemoteOperationResult result) {
1573         if (result.isSuccess()) {
1574             if (operation.transferWasRequested()) {
1575                 OCFile syncedFile = operation.getLocalFile();
1576                 onTransferStateChanged(syncedFile, true, true);
1577                 invalidateOptionsMenu();
1578             }
1579         }
1580     }
1581
1582     /**
1583      * Updates the view associated to the activity after the finish of an operation trying create a
1584      * new folder
1585      *
1586      * @param operation     Creation operation performed.
1587      * @param result        Result of the creation.
1588      */
1589     private void onCreateFolderOperationFinish(CreateFolderOperation operation,
1590                                                RemoteOperationResult result) {
1591         if (result.isSuccess()) {
1592             dismissLoadingDialog();
1593             refreshListOfFilesFragment();
1594         } else {
1595             dismissLoadingDialog();
1596             try {
1597                 Toast msg = Toast.makeText(FileDisplayActivity.this,
1598                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1599                         Toast.LENGTH_LONG);
1600                 msg.show();
1601
1602             } catch (NotFoundException e) {
1603                 Log_OC.e(TAG, "Error while trying to show fail message ", e);
1604             }
1605         }
1606     }
1607
1608
1609     /**
1610      * {@inheritDoc}
1611      */
1612     @Override
1613     public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading) {
1614         refreshListOfFilesFragment();
1615         FileFragment details = getSecondFragment();
1616         if (details != null && details instanceof FileDetailFragment &&
1617                 file.equals(details.getFile()) ) {
1618             if (downloading || uploading) {
1619                 ((FileDetailFragment) details).updateFileDetails(file, getAccount());
1620             } else {
1621                 if (!file.fileExists()) {
1622                     cleanSecondFragment();
1623                 } else {
1624                     ((FileDetailFragment) details).updateFileDetails(false, true);
1625                 }
1626             }
1627         }
1628
1629     }
1630
1631
1632     private void requestForDownload() {
1633         Account account = getAccount();
1634         //if (!mWaitingToPreview.isDownloading()) {
1635         if (!mDownloaderBinder.isDownloading(account, mWaitingToPreview)) {
1636             Intent i = new Intent(this, FileDownloader.class);
1637             i.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
1638             i.putExtra(FileDownloader.EXTRA_FILE, mWaitingToPreview);
1639             startService(i);
1640         }
1641     }
1642
1643
1644     private OCFile getCurrentDir() {
1645         OCFile file = getFile();
1646         if (file != null) {
1647             if (file.isFolder()) {
1648                 return file;
1649             } else if (getStorageManager() != null) {
1650                 String parentPath = file.getRemotePath().substring(0,
1651                         file.getRemotePath().lastIndexOf(file.getFileName()));
1652                 return getStorageManager().getFileByPath(parentPath);
1653             }
1654         }
1655         return null;
1656     }
1657
1658     public void startSyncFolderOperation(OCFile folder, boolean ignoreETag) {
1659         long currentSyncTime = System.currentTimeMillis();
1660
1661         mSyncInProgress = true;
1662
1663         // perform folder synchronization
1664         RemoteOperation synchFolderOp = new RefreshFolderOperation( folder,
1665                 currentSyncTime,
1666                 false,
1667                 getFileOperationsHelper().isSharedSupported(),
1668                 ignoreETag,
1669                 getStorageManager(),
1670                 getAccount(),
1671                 getApplicationContext()
1672         );
1673         synchFolderOp.execute(getAccount(), MainApp.getAppContext(), this, null, null);
1674
1675         mProgressBar.setIndeterminate(true);
1676
1677         setBackgroundText();
1678     }
1679
1680     /**
1681      * Show untrusted cert dialog
1682      */
1683     public void showUntrustedCertDialog(RemoteOperationResult result) {
1684         // Show a dialog with the certificate info
1685         SslUntrustedCertDialog dialog = SslUntrustedCertDialog.newInstanceForFullSslError(
1686                 (CertificateCombinedException) result.getException());
1687         FragmentManager fm = getSupportFragmentManager();
1688         FragmentTransaction ft = fm.beginTransaction();
1689         dialog.show(ft, DIALOG_UNTRUSTED_CERT);
1690     }
1691
1692     private void requestForDownload(OCFile file) {
1693         Account account = getAccount();
1694         if (!mDownloaderBinder.isDownloading(account, mWaitingToPreview)) {
1695             Intent i = new Intent(this, FileDownloader.class);
1696             i.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
1697             i.putExtra(FileDownloader.EXTRA_FILE, file);
1698             startService(i);
1699         }
1700     }
1701
1702     private void sendDownloadedFile() {
1703         getFileOperationsHelper().sendDownloadedFile(mWaitingToSend);
1704         mWaitingToSend = null;
1705     }
1706
1707
1708     /**
1709      * Requests the download of the received {@link OCFile} , updates the UI
1710      * to monitor the download progress and prepares the activity to send the file
1711      * when the download finishes.
1712      *
1713      * @param file {@link OCFile} to download and preview.
1714      */
1715     public void startDownloadForSending(OCFile file) {
1716         mWaitingToSend = file;
1717         requestForDownload(mWaitingToSend);
1718         boolean hasSecondFragment = (getSecondFragment() != null);
1719         updateFragmentsVisibility(hasSecondFragment);
1720     }
1721
1722     /**
1723      * Opens the image gallery showing the image {@link OCFile} received as parameter.
1724      *
1725      * @param file Image {@link OCFile} to show.
1726      */
1727     public void startImagePreview(OCFile file) {
1728         Intent showDetailsIntent = new Intent(this, PreviewImageActivity.class);
1729         showDetailsIntent.putExtra(EXTRA_FILE, file);
1730         showDetailsIntent.putExtra(EXTRA_ACCOUNT, getAccount());
1731         startActivity(showDetailsIntent);
1732     }
1733
1734     /**
1735      * Stars the preview of an already down media {@link OCFile}.
1736      *
1737      * @param file                      Media {@link OCFile} to preview.
1738      * @param startPlaybackPosition     Media position where the playback will be started,
1739      *                                  in milliseconds.
1740      * @param autoplay                  When 'true', the playback will start without user
1741      *                                  interactions.
1742      */
1743     public void startMediaPreview(OCFile file, int startPlaybackPosition, boolean autoplay) {
1744         Fragment mediaFragment = new PreviewMediaFragment(file, getAccount(), startPlaybackPosition,
1745                 autoplay);
1746         setSecondFragment(mediaFragment);
1747         updateFragmentsVisibility(true);
1748         updateActionBarTitleAndHomeButton(file);
1749         setFile(file);
1750     }
1751
1752     /**
1753      * Stars the preview of a text file {@link OCFile}.
1754      *
1755      * @param file Text {@link OCFile} to preview.
1756      */
1757     public void startTextPreview(OCFile file) {
1758         Bundle args = new Bundle();
1759         args.putParcelable(EXTRA_FILE, file);
1760         args.putParcelable(EXTRA_ACCOUNT, getAccount());
1761         Fragment textPreviewFragment = Fragment.instantiate(getApplicationContext(),
1762                 PreviewTextFragment.class.getName(), args);
1763         setSecondFragment(textPreviewFragment);
1764         updateFragmentsVisibility(true);
1765         //updateNavigationElementsInActionBar(file);
1766         setFile(file);
1767     }
1768
1769     /**
1770      * Requests the download of the received {@link OCFile} , updates the UI
1771      * to monitor the download progress and prepares the activity to preview
1772      * or open the file when the download finishes.
1773      *
1774      * @param file {@link OCFile} to download and preview.
1775      */
1776     public void startDownloadForPreview(OCFile file) {
1777         Fragment detailFragment = FileDetailFragment.newInstance(file, getAccount());
1778         setSecondFragment(detailFragment);
1779         mWaitingToPreview = file;
1780         requestForDownload();
1781         updateFragmentsVisibility(true);
1782         updateActionBarTitleAndHomeButton(file);
1783         setFile(file);
1784     }
1785
1786
1787     public void cancelTransference(OCFile file) {
1788         getFileOperationsHelper().cancelTransference(file);
1789         if (mWaitingToPreview != null &&
1790                 mWaitingToPreview.getRemotePath().equals(file.getRemotePath())) {
1791             mWaitingToPreview = null;
1792         }
1793         if (mWaitingToSend != null &&
1794                 mWaitingToSend.getRemotePath().equals(file.getRemotePath())) {
1795             mWaitingToSend = null;
1796         }
1797         onTransferStateChanged(file, false, false);
1798     }
1799
1800     @Override
1801     public void onRefresh(boolean ignoreETag) {
1802         refreshList(ignoreETag);
1803     }
1804
1805     @Override
1806     public void onRefresh() {
1807         refreshList(true);
1808     }
1809
1810     private void refreshList(boolean ignoreETag) {
1811         OCFileListFragment listOfFiles = getListOfFilesFragment();
1812         if (listOfFiles != null) {
1813             OCFile folder = listOfFiles.getCurrentFile();
1814             if (folder != null) {
1815                 /*mFile = mContainerActivity.getStorageManager().getFileById(mFile.getFileId());
1816                 listDirectory(mFile);*/
1817                 startSyncFolderOperation(folder, ignoreETag);
1818             }
1819         }
1820     }
1821
1822     private void sortByDate(boolean ascending) {
1823         getListOfFilesFragment().sortByDate(ascending);
1824     }
1825
1826     private void sortBySize(boolean ascending) {
1827         getListOfFilesFragment().sortBySize(ascending);
1828     }
1829
1830     private void sortByName(boolean ascending) {
1831         getListOfFilesFragment().sortByName(ascending);
1832     }
1833
1834    public void allFilesOption() {
1835        browseToRoot();
1836    }
1837 }