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