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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2014 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.ui.activity;
  20
  21 import java.io.File;
  22 import java.io.IOException;
  23
  24 import android.accounts.Account;
  25 import android.accounts.AccountManager;
  26 import android.accounts.AuthenticatorException;
  27 import android.accounts.OperationCanceledException;
  28 import android.app.AlertDialog;
  29 import android.app.Dialog;
  30 import android.app.ProgressDialog;
  31 import android.content.BroadcastReceiver;
  32 import android.content.ComponentName;
  33 import android.content.ContentResolver;
  34 import android.content.ContentUris;
  35 import android.content.Context;
  36 import android.content.DialogInterface;
  37 import android.content.Intent;
  38 import android.content.IntentFilter;
  39 import android.content.ServiceConnection;
  40 import android.content.SharedPreferences;
  41 import android.content.SyncRequest;
  42 import android.content.res.Resources.NotFoundException;
  43 import android.database.Cursor;
  44 import android.net.Uri;
  45 import android.os.Build;
  46 import android.os.Bundle;
  47 import android.os.Environment;
  48 import android.os.IBinder;
  49 import android.preference.PreferenceManager;
  50 import android.provider.DocumentsContract;
  51 import android.provider.MediaStore;
  52 import android.provider.OpenableColumns;
  53 import android.support.v4.app.Fragment;
  54 import android.support.v4.app.FragmentManager;
  55 import android.support.v4.app.FragmentTransaction;
  56 import android.util.Log;
  57 import android.view.View;
  58 import android.view.ViewGroup;
  59 import android.widget.ArrayAdapter;
  60 import android.widget.TextView;
  61 import android.widget.Toast;
  62
  63 import com.actionbarsherlock.app.ActionBar;
  64 import com.actionbarsherlock.app.ActionBar.OnNavigationListener;
  65 import com.actionbarsherlock.view.Menu;
  66 import com.actionbarsherlock.view.MenuInflater;
  67 import com.actionbarsherlock.view.MenuItem;
  68 import com.actionbarsherlock.view.Window;
  69 import com.owncloud.android.BuildConfig;
  70 import com.owncloud.android.MainApp;
  71 import com.owncloud.android.R;
  72 import com.owncloud.android.datamodel.OCFile;
  73 import com.owncloud.android.files.services.FileDownloader;
  74 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  75 import com.owncloud.android.files.services.FileUploader;
  76 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  77 import com.owncloud.android.lib.common.OwnCloudAccount;
  78 import com.owncloud.android.lib.common.OwnCloudClient;
  79 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  80 import com.owncloud.android.lib.common.OwnCloudCredentials;
  81 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  82 import com.owncloud.android.lib.common.network.CertificateCombinedException;
  83 import com.owncloud.android.lib.common.operations.RemoteOperation;
  84 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  85 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  86 import com.owncloud.android.lib.common.utils.Log_OC;
  87 import com.owncloud.android.operations.CreateFolderOperation;
  88 import com.owncloud.android.operations.CreateShareOperation;
  89 import com.owncloud.android.operations.MoveFileOperation;
  90 import com.owncloud.android.operations.RemoveFileOperation;
  91 import com.owncloud.android.operations.RenameFileOperation;
  92 import com.owncloud.android.operations.SynchronizeFileOperation;
  93 import com.owncloud.android.operations.SynchronizeFolderOperation;
  94 import com.owncloud.android.operations.UnshareLinkOperation;
  95 import com.owncloud.android.services.observer.FileObserverService;
  96 import com.owncloud.android.syncadapter.FileSyncAdapter;
  97 import com.owncloud.android.ui.adapter.FileListListAdapter;
  98 import com.owncloud.android.ui.dialog.CreateFolderDialogFragment;
  99 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog;
 100 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog.OnSslUntrustedCertListener;
 101 import com.owncloud.android.ui.fragment.FileDetailFragment;
 102 import com.owncloud.android.ui.fragment.FileFragment;
 103 import com.owncloud.android.ui.fragment.OCFileListFragment;
 104 import com.owncloud.android.ui.preview.PreviewImageActivity;
 105 import com.owncloud.android.ui.preview.PreviewImageFragment;
 106 import com.owncloud.android.ui.preview.PreviewMediaFragment;
 107 import com.owncloud.android.ui.preview.PreviewVideoActivity;
 108 import com.owncloud.android.utils.DisplayUtils;
 109 import com.owncloud.android.utils.ErrorMessageAdapter;
 110
 111
 112 /**
 113  * Displays, what files the user has available in his ownCloud.
 114  *
 115  * @author Bartek Przybylski
 116  * @author David A. Velasco
 117  */
 118
 119 public class FileDisplayActivity extends HookActivity implements
 120 FileFragment.ContainerActivity, OnNavigationListener,
 121 OnSslUntrustedCertListener, OnEnforceableRefreshListener {
 122
 123     private ArrayAdapter<String> mDirectories;
 124
 125     private SyncBroadcastReceiver mSyncBroadcastReceiver;
 126     private UploadFinishReceiver mUploadFinishReceiver;
 127     private DownloadFinishReceiver mDownloadFinishReceiver;
 128     private RemoteOperationResult mLastSslUntrustedServerResult = null;
 129
 130     private boolean mDualPane;
 131     private View mLeftFragmentContainer;
 132     private View mRightFragmentContainer;
 133
 134     private static final String KEY_WAITING_TO_PREVIEW = "WAITING_TO_PREVIEW";
 135     private static final String KEY_SYNC_IN_PROGRESS = "SYNC_IN_PROGRESS";
 136     private static final String KEY_WAITING_TO_SEND = "WAITING_TO_SEND";
 137
 138     public static final int DIALOG_SHORT_WAIT = 0;
 139     private static final int DIALOG_CHOOSE_UPLOAD_SOURCE = 1;
 140     private static final int DIALOG_CERT_NOT_SAVED = 2;
 141
 142     public static final String ACTION_DETAILS = "com.owncloud.android.ui.activity.action.DETAILS";
 143
 144     private static final int ACTION_SELECT_CONTENT_FROM_APPS = 1;
 145     private static final int ACTION_SELECT_MULTIPLE_FILES = 2;
 146     public static final int ACTION_MOVE_FILES = 3;
 147
 148     private static final String TAG = FileDisplayActivity.class.getSimpleName();
 149
 150     private static final String TAG_LIST_OF_FILES = "LIST_OF_FILES";
 151     private static final String TAG_SECOND_FRAGMENT = "SECOND_FRAGMENT";
 152
 153     private OCFile mWaitingToPreview;
 154
 155     private boolean mSyncInProgress = false;
 156
 157     private String DIALOG_UNTRUSTED_CERT;
 158
 159     private OCFile mWaitingToSend;
 160
 161     private static final String URI_CONTENT_SCHEME = "content://";
 162
 163     @Override
 164     protected void onCreate(Bundle savedInstanceState) {
 165         Log_OC.d(TAG, "onCreate() start");
 166         requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
 167
 168         super.onCreate(savedInstanceState); // this calls onAccountChanged() when ownCloud Account is valid
 169
 170         // PIN CODE request ;  best location is to decide, let's try this first
 171         if (getIntent().getAction() != null && getIntent().getAction().equals(Intent.ACTION_MAIN) && savedInstanceState == null) {
 172             requestPinCode();
 173         } else if (getIntent().getAction() == null && savedInstanceState == null) {
 174             requestPinCode();
 175         }
 176
 177         /// grant that FileObserverService is watching favourite files
 178         if (savedInstanceState == null) {
 179             Intent initObserversIntent = FileObserverService.makeInitIntent(this);
 180             startService(initObserversIntent);
 181         }
 182
 183         /// Load of saved instance state
 184         if(savedInstanceState != null) {
 185             mWaitingToPreview = (OCFile) savedInstanceState.getParcelable(FileDisplayActivity.KEY_WAITING_TO_PREVIEW);
 186             mSyncInProgress = savedInstanceState.getBoolean(KEY_SYNC_IN_PROGRESS);
 187             mWaitingToSend = (OCFile) savedInstanceState.getParcelable(FileDisplayActivity.KEY_WAITING_TO_SEND);
 188
 189         } else {
 190             mWaitingToPreview = null;
 191             mSyncInProgress = false;
 192             mWaitingToSend = null;
 193         }
 194
 195         /// USER INTERFACE
 196
 197         // Inflate and set the layout view
 198         setContentView(R.layout.files);
 199         mDualPane = getResources().getBoolean(R.bool.large_land_layout);
 200         mLeftFragmentContainer = findViewById(R.id.left_fragment_container);
 201         mRightFragmentContainer = findViewById(R.id.right_fragment_container);
 202         if (savedInstanceState == null) {
 203             createMinFragments();
 204         }
 205
 206         // Action bar setup
 207         mDirectories = new CustomArrayAdapter<String>(this, R.layout.sherlock_spinner_dropdown_item);
 208         getSupportActionBar().setHomeButtonEnabled(true);       // mandatory since Android ICS, according to the official documentation
 209         setSupportProgressBarIndeterminateVisibility(mSyncInProgress /*|| mRefreshSharesInProgress*/);    // always AFTER setContentView(...) ; to work around bug in its implementation
 210
 211         setBackgroundText();
 212
 213         Log_OC.d(TAG, "onCreate() end");
 214     }
 215
 216     @Override
 217     protected void onStart() {
 218         super.onStart();
 219         getSupportActionBar().setIcon(DisplayUtils.getSeasonalIconId());
 220     }
 221
 222     @Override
 223     protected void onDestroy() {
 224         super.onDestroy();
 225     }
 226
 227     /**
 228      *  Called when the ownCloud {@link Account} associated to the Activity was just updated.
 229      */
 230     @Override
 231     protected void onAccountSet(boolean stateWasRecovered) {
 232         super.onAccountSet(stateWasRecovered);
 233         if (getAccount() != null) {
 234             /// Check whether the 'main' OCFile handled by the Activity is contained in the current Account
 235             OCFile file = getFile();
 236             // get parent from path
 237             String parentPath = "";
 238             if (file != null) {
 239                 if (file.isDown() && file.getLastSyncDateForProperties() == 0) {
 240                     // upload in progress - right now, files are not inserted in the local cache until the upload is successful
 241                     // get parent from path
 242                     parentPath = file.getRemotePath().substring(0, file.getRemotePath().lastIndexOf(file.getFileName()));
 243                     if (getStorageManager().getFileByPath(parentPath) ==  null)
 244                         file = null; // not able to know the directory where the file is uploading
 245                 } else {
 246                     file = getStorageManager().getFileByPath(file.getRemotePath());   // currentDir = null if not in the current Account
 247                 }
 248             }
 249             if (file == null) {
 250                 // fall back to root folder
 251                 file = getStorageManager().getFileByPath(OCFile.ROOT_PATH);  // never returns null
 252             }
 253             setFile(file);
 254             setNavigationListWithFolder(file);
 255
 256             if (!stateWasRecovered) {
 257                 Log_OC.e(TAG, "Initializing Fragments in onAccountChanged..");
 258                 initFragmentsWithFile();
 259                 if (file.isFolder()) {
 260                     startSyncFolderOperation(file, false);
 261                 }
 262
 263             } else {
 264                 updateFragmentsVisibility(!file.isFolder());
 265                 updateNavigationElementsInActionBar(file.isFolder() ? null : file);
 266             }
 267         }
 268     }
 269
 270
 271     private void setNavigationListWithFolder(OCFile file) {
 272         mDirectories.clear();
 273         OCFile fileIt = file;
 274         String parentPath;
 275         while(fileIt != null && fileIt.getFileName() != OCFile.ROOT_PATH) {
 276             if (fileIt.isFolder()) {
 277                 mDirectories.add(fileIt.getFileName());
 278             }
 279             // get parent from path
 280             parentPath = fileIt.getRemotePath().substring(0, fileIt.getRemotePath().lastIndexOf(fileIt.getFileName()));
 281             fileIt = getStorageManager().getFileByPath(parentPath);
 282         }
 283         mDirectories.add(OCFile.PATH_SEPARATOR);
 284     }
 285
 286
 287     private void createMinFragments() {
 288         OCFileListFragment listOfFiles = new OCFileListFragment();
 289         FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
 290         transaction.add(R.id.left_fragment_container, listOfFiles, TAG_LIST_OF_FILES);
 291         transaction.commit();
 292     }
 293
 294     private void initFragmentsWithFile() {
 295         if (getAccount() != null && getFile() != null) {
 296             /// First fragment
 297             OCFileListFragment listOfFiles = getListOfFilesFragment();
 298             if (listOfFiles != null) {
 299                 listOfFiles.listDirectory(getCurrentDir());
 300             } else {
 301                 Log_OC.e(TAG, "Still have a chance to lose the initializacion of list fragment >(");
 302             }
 303
 304             /// Second fragment
 305             OCFile file = getFile();
 306             Fragment secondFragment = chooseInitialSecondFragment(file);
 307             if (secondFragment != null) {
 308                 setSecondFragment(secondFragment);
 309                 updateFragmentsVisibility(true);
 310                 updateNavigationElementsInActionBar(file);
 311
 312             } else {
 313                 cleanSecondFragment();
 314             }
 315
 316         } else {
 317             Log_OC.wtf(TAG, "initFragments() called with invalid NULLs!");
 318             if (getAccount() == null) {
 319                 Log_OC.wtf(TAG, "\t account is NULL");
 320             }
 321             if (getFile() == null) {
 322                 Log_OC.wtf(TAG, "\t file is NULL");
 323             }
 324         }
 325     }
 326
 327     private Fragment chooseInitialSecondFragment(OCFile file) {
 328         Fragment secondFragment = null;
 329         if (file != null && !file.isFolder()) {
 330             if (file.isDown() && PreviewMediaFragment.canBePreviewed(file)
 331                     && file.getLastSyncDateForProperties() > 0  // temporal fix
 332                     ) {
 333                 int startPlaybackPosition = getIntent().getIntExtra(PreviewVideoActivity.EXTRA_START_POSITION, 0);
 334                 boolean autoplay = getIntent().getBooleanExtra(PreviewVideoActivity.EXTRA_AUTOPLAY, true);
 335                 secondFragment = new PreviewMediaFragment(file, getAccount(), startPlaybackPosition, autoplay);
 336
 337             } else {
 338                 secondFragment = new FileDetailFragment(file, getAccount());
 339             }
 340         }
 341         return secondFragment;
 342     }
 343
 344
 345     /**
 346      * Replaces the second fragment managed by the activity with the received as
 347      * a parameter.
 348      *
 349      * Assumes never will be more than two fragments managed at the same time.
 350      *
 351      * @param fragment      New second Fragment to set.
 352      */
 353     private void setSecondFragment(Fragment fragment) {
 354         FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
 355         transaction.replace(R.id.right_fragment_container, fragment, TAG_SECOND_FRAGMENT);
 356         transaction.commit();
 357     }
 358
 359
 360     private void updateFragmentsVisibility(boolean existsSecondFragment) {
 361         if (mDualPane) {
 362             if (mLeftFragmentContainer.getVisibility() != View.VISIBLE) {
 363                 mLeftFragmentContainer.setVisibility(View.VISIBLE);
 364             }
 365             if (mRightFragmentContainer.getVisibility() != View.VISIBLE) {
 366                 mRightFragmentContainer.setVisibility(View.VISIBLE);
 367             }
 368
 369         } else if (existsSecondFragment) {
 370             if (mLeftFragmentContainer.getVisibility() != View.GONE) {
 371                 mLeftFragmentContainer.setVisibility(View.GONE);
 372             }
 373             if (mRightFragmentContainer.getVisibility() != View.VISIBLE) {
 374                 mRightFragmentContainer.setVisibility(View.VISIBLE);
 375             }
 376
 377         } else {
 378             if (mLeftFragmentContainer.getVisibility() != View.VISIBLE) {
 379                 mLeftFragmentContainer.setVisibility(View.VISIBLE);
 380             }
 381             if (mRightFragmentContainer.getVisibility() != View.GONE) {
 382                 mRightFragmentContainer.setVisibility(View.GONE);
 383             }
 384         }
 385     }
 386
 387
 388     private OCFileListFragment getListOfFilesFragment() {
 389         Fragment listOfFiles = getSupportFragmentManager().findFragmentByTag(FileDisplayActivity.TAG_LIST_OF_FILES);
 390         if (listOfFiles != null) {
 391             return (OCFileListFragment)listOfFiles;
 392         }
 393         Log_OC.wtf(TAG, "Access to unexisting list of files fragment!!");
 394         return null;
 395     }
 396
 397     public FileFragment getSecondFragment() {
 398         Fragment second = getSupportFragmentManager().findFragmentByTag(FileDisplayActivity.TAG_SECOND_FRAGMENT);
 399         if (second != null) {
 400             return (FileFragment)second;
 401         }
 402         return null;
 403     }
 404
 405     protected void cleanSecondFragment() {
 406         Fragment second = getSecondFragment();
 407         if (second != null) {
 408             FragmentTransaction tr = getSupportFragmentManager().beginTransaction();
 409             tr.remove(second);
 410             tr.commit();
 411         }
 412         updateFragmentsVisibility(false);
 413         updateNavigationElementsInActionBar(null);
 414     }
 415
 416     protected void refreshListOfFilesFragment() {
 417         OCFileListFragment fileListFragment = getListOfFilesFragment();
 418         if (fileListFragment != null) {
 419             fileListFragment.listDirectory();
 420         }
 421     }
 422
 423     protected void refreshSecondFragment(String downloadEvent, String downloadedRemotePath, boolean success) {
 424         FileFragment secondFragment = getSecondFragment();
 425         boolean waitedPreview = (mWaitingToPreview != null && mWaitingToPreview.getRemotePath().equals(downloadedRemotePath));
 426         if (secondFragment != null && secondFragment instanceof FileDetailFragment) {
 427             FileDetailFragment detailsFragment = (FileDetailFragment) secondFragment;
 428             OCFile fileInFragment = detailsFragment.getFile();
 429             if (fileInFragment != null && !downloadedRemotePath.equals(fileInFragment.getRemotePath())) {
 430                 // the user browsed to other file ; forget the automatic preview
 431                 mWaitingToPreview = null;
 432
 433             } else if (downloadEvent.equals(FileDownloader.getDownloadAddedMessage())) {
 434                 // grant that the right panel updates the progress bar
 435                 detailsFragment.listenForTransferProgress();
 436                 detailsFragment.updateFileDetails(true, false);
 437
 438             } else if (downloadEvent.equals(FileDownloader.getDownloadFinishMessage())) {
 439                 //  update the right panel
 440                 boolean detailsFragmentChanged = false;
 441                 if (waitedPreview) {
 442                     if (success) {
 443                         mWaitingToPreview = getStorageManager().getFileById(mWaitingToPreview.getFileId());   // update the file from database, for the local storage path
 444                         if (PreviewMediaFragment.canBePreviewed(mWaitingToPreview)) {
 445                             startMediaPreview(mWaitingToPreview, 0, true);
 446                             detailsFragmentChanged = true;
 447                         } else {
 448                             getFileOperationsHelper().openFile(mWaitingToPreview);
 449                         }
 450                     }
 451                     mWaitingToPreview = null;
 452                 }
 453                 if (!detailsFragmentChanged) {
 454                     detailsFragment.updateFileDetails(false, (success));
 455                 }
 456             }
 457         }
 458     }
 459
 460     @Override
 461     public boolean onPrepareOptionsMenu(Menu menu) {
 462         if (BuildConfig.DEBUG) {
 463             menu.findItem(R.id.action_logger).setVisible(true);
 464         } else {
 465             menu.findItem(R.id.action_logger).setVisible(false);
 466         }
 467         return super.onPrepareOptionsMenu(menu);
 468     }
 469
 470     @Override
 471     public boolean onCreateOptionsMenu(Menu menu) {
 472         MenuInflater inflater = getSherlock().getMenuInflater();
 473         inflater.inflate(R.menu.main_menu, menu);
 474         return true;
 475     }
 476
 477     @Override
 478     public boolean onOptionsItemSelected(MenuItem item) {
 479         boolean retval = true;
 480         switch (item.getItemId()) {
 481         case R.id.action_create_dir: {
 482             CreateFolderDialogFragment dialog =
 483                     CreateFolderDialogFragment.newInstance(getCurrentDir());
 484             dialog.show(getSupportFragmentManager(), "createdirdialog");
 485             break;
 486         }
 487         case R.id.action_sync_account: {
 488             startSynchronization();
 489             break;
 490         }
 491         case R.id.action_upload: {
 492             showDialog(DIALOG_CHOOSE_UPLOAD_SOURCE);
 493             break;
 494         }
 495         case R.id.action_settings: {
 496             Intent settingsIntent = new Intent(this, Preferences.class);
 497             startActivity(settingsIntent);
 498             break;
 499         }
 500         case R.id.action_logger: {
 501             Intent loggerIntent = new Intent(getApplicationContext(),LogHistoryActivity.class);
 502             startActivity(loggerIntent);
 503             break;
 504         }
 505         case android.R.id.home: {
 506             FileFragment second = getSecondFragment();
 507             OCFile currentDir = getCurrentDir();
 508             if((currentDir != null && currentDir.getParentId() != 0) ||
 509                     (second != null && second.getFile() != null)) {
 510                 onBackPressed();
 511
 512             }
 513             break;
 514         }
 515         case R.id.action_sort: {
 516             SharedPreferences appPreferences = PreferenceManager
 517                     .getDefaultSharedPreferences(this);
 518
 519             // Read sorting order, default to sort by name ascending
 520             Integer sortOrder = appPreferences
 521                     .getInt("sortOrder", FileListListAdapter.SORT_NAME);
 522
 523             AlertDialog.Builder builder = new AlertDialog.Builder(this);
 524             builder.setTitle(R.string.actionbar_sort_title)
 525             .setSingleChoiceItems(R.array.actionbar_sortby, sortOrder , new DialogInterface.OnClickListener() {
 526                 public void onClick(DialogInterface dialog, int which) {
 527
 528                     switch (which){
 529                     case 0:
 530                         sortByName(true);
 531                         break;
 532                     case 1:
 533                         sortByDate(false);
 534                         break;
 535
 536 // TODO re-enable when server-side folder size calculation is available
 537 //                    case 2:
 538 //                        sortBySize(false);
 539 //                        break;
 540                     }
 541
 542                     dialog.dismiss();
 543
 544                 }
 545             });
 546             builder.create().show();
 547             break;
 548         }
 549         default:
 550             retval = super.onOptionsItemSelected(item);
 551         }
 552         return retval;
 553     }
 554
 555     private void startSynchronization() {
 556         Log_OC.e(TAG, "Got to start sync");
 557         if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.KITKAT) {
 558             Log_OC.e(TAG, "Canceling all syncs for " + MainApp.getAuthority());
 559             ContentResolver.cancelSync(null, MainApp.getAuthority());   // cancel the current synchronizations of any ownCloud account
 560             Bundle bundle = new Bundle();
 561             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
 562             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true);
 563             Log_OC.e(TAG, "Requesting sync for " + getAccount().name + " at " + MainApp.getAuthority());
 564             ContentResolver.requestSync(
 565                     getAccount(),
 566                     MainApp.getAuthority(), bundle);
 567         } else {
 568             Log_OC.e(TAG, "Requesting sync for " + getAccount().name + " at " + MainApp.getAuthority() + " with new API");
 569             SyncRequest.Builder builder = new SyncRequest.Builder();
 570             builder.setSyncAdapter(getAccount(), MainApp.getAuthority());
 571             builder.setExpedited(true);
 572             builder.setManual(true);
 573             builder.syncOnce();
 574             SyncRequest request = builder.build();
 575             ContentResolver.requestSync(request);
 576         }
 577     }
 578
 579
 580     @Override
 581     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 582         if (itemPosition != 0) {
 583             String targetPath = "";
 584             for (int i=itemPosition; i < mDirectories.getCount() - 1; i++) {
 585                 targetPath = mDirectories.getItem(i) + OCFile.PATH_SEPARATOR + targetPath;
 586             }
 587             targetPath = OCFile.PATH_SEPARATOR + targetPath;
 588             OCFile targetFolder = getStorageManager().getFileByPath(targetPath);
 589             if (targetFolder != null) {
 590                 browseTo(targetFolder);
 591             }
 592
 593             // the next operation triggers a new call to this method, but it's necessary to
 594             // ensure that the name exposed in the action bar is the current directory when the
 595             // user selected it in the navigation list
 596             if (getSupportActionBar().getNavigationMode() == ActionBar.NAVIGATION_MODE_LIST  && itemPosition != 0)
 597                 getSupportActionBar().setSelectedNavigationItem(0);
 598         }
 599         return true;
 600     }
 601
 602     /**
 603      * Called, when the user selected something for uploading
 604      */
 605     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 606         super.onActivityResult(requestCode, resultCode, data);
 607
 608         if (requestCode == ACTION_SELECT_CONTENT_FROM_APPS && (resultCode == RESULT_OK || resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)) {
 609             requestSimpleUpload(data, resultCode);
 610
 611         } else if (requestCode == ACTION_SELECT_MULTIPLE_FILES && (resultCode == RESULT_OK || resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)) {
 612             requestMultipleUpload(data, resultCode);
 613
 614         } else if (requestCode == ACTION_MOVE_FILES && (resultCode == RESULT_OK ||
 615                 resultCode == MoveActivity.RESULT_OK_AND_MOVE)){
 616
 617             final Intent fData = data;
 618             final int fResultCode = resultCode;
 619             getHandler().postDelayed(
 620                 new Runnable() {
 621                     @Override
 622                     public void run() {
 623                         requestMoveOperation(fData, fResultCode);
 624                     }
 625                 },
 626                 DELAY_TO_REQUEST_OPERATION_ON_ACTIVITY_RESULTS
 627             );
 628         }
 629     }
 630
 631     private void requestMultipleUpload(Intent data, int resultCode) {
 632         String[] filePaths = data.getStringArrayExtra(UploadFilesActivity.EXTRA_CHOSEN_FILES);
 633         if (filePaths != null) {
 634             String[] remotePaths = new String[filePaths.length];
 635             String remotePathBase = "";
 636             for (int j = mDirectories.getCount() - 2; j >= 0; --j) {
 637                 remotePathBase += OCFile.PATH_SEPARATOR + mDirectories.getItem(j);
 638             }
 639             if (!remotePathBase.endsWith(OCFile.PATH_SEPARATOR))
 640                 remotePathBase += OCFile.PATH_SEPARATOR;
 641             for (int j = 0; j< remotePaths.length; j++) {
 642                 remotePaths[j] = remotePathBase + (new File(filePaths[j])).getName();
 643             }
 644
 645             Intent i = new Intent(this, FileUploader.class);
 646             i.putExtra(FileUploader.KEY_ACCOUNT, getAccount());
 647             i.putExtra(FileUploader.KEY_LOCAL_FILE, filePaths);
 648             i.putExtra(FileUploader.KEY_REMOTE_FILE, remotePaths);
 649             i.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_MULTIPLE_FILES);
 650             if (resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)
 651                 i.putExtra(FileUploader.KEY_LOCAL_BEHAVIOUR, FileUploader.LOCAL_BEHAVIOUR_MOVE);
 652             startService(i);
 653
 654         } else {
 655             Log_OC.d(TAG, "User clicked on 'Update' with no selection");
 656             Toast t = Toast.makeText(this, getString(R.string.filedisplay_no_file_selected), Toast.LENGTH_LONG);
 657             t.show();
 658             return;
 659         }
 660     }
 661
 662
 663     private void requestSimpleUpload(Intent data, int resultCode) {
 664         String filepath = null;
 665         String mimeType = null;
 666
 667         Uri selectedImageUri = data.getData();
 668
 669         try {
 670             mimeType = getContentResolver().getType(selectedImageUri);
 671
 672             String filemanagerstring = selectedImageUri.getPath();
 673             String selectedImagePath = getPath(selectedImageUri);
 674
 675             if (selectedImagePath != null)
 676                 filepath = selectedImagePath;
 677             else
 678                 filepath = filemanagerstring;
 679
 680         } catch (Exception e) {
 681             Log_OC.e(TAG, "Unexpected exception when trying to read the result of Intent.ACTION_GET_CONTENT", e);
 682             e.printStackTrace();
 683
 684         } finally {
 685             if (filepath == null) {
 686                 Log_OC.e(TAG, "Couldnt resolve path to file");
 687                 Toast t = Toast.makeText(this, getString(R.string.filedisplay_unexpected_bad_get_content), Toast.LENGTH_LONG);
 688                 t.show();
 689                 return;
 690             }
 691         }
 692
 693         Intent i = new Intent(this, FileUploader.class);
 694         i.putExtra(FileUploader.KEY_ACCOUNT,
 695                 getAccount());
 696         String remotepath = new String();
 697         for (int j = mDirectories.getCount() - 2; j >= 0; --j) {
 698             remotepath += OCFile.PATH_SEPARATOR + mDirectories.getItem(j);
 699         }
 700         if (!remotepath.endsWith(OCFile.PATH_SEPARATOR))
 701             remotepath += OCFile.PATH_SEPARATOR;
 702
 703         if (filepath.startsWith(URI_CONTENT_SCHEME)) {
 704
 705             Cursor cursor = MainApp.getAppContext().getContentResolver()
 706                     .query(Uri.parse(filepath), null, null, null, null, null);
 707
 708             try {
 709                 if (cursor != null && cursor.moveToFirst()) {
 710                     String displayName = cursor.getString(
 711                             cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
 712                     Log.i(TAG, "Display Name: " + displayName + "; mimeType: " + mimeType);
 713
 714                     remotepath += displayName + getComposedFileExtension(filepath);
 715
 716                 }
 717             } finally {
 718                 cursor.close();
 719             }
 720
 721         } else {
 722             remotepath += new File(filepath).getName();
 723         }
 724
 725         i.putExtra(FileUploader.KEY_LOCAL_FILE, filepath);
 726         i.putExtra(FileUploader.KEY_REMOTE_FILE, remotepath);
 727         i.putExtra(FileUploader.KEY_MIME_TYPE, mimeType);
 728         i.putExtra(FileUploader.KEY_UPLOAD_TYPE, FileUploader.UPLOAD_SINGLE_FILE);
 729         if (resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)
 730             i.putExtra(FileUploader.KEY_LOCAL_BEHAVIOUR, FileUploader.LOCAL_BEHAVIOUR_MOVE);
 731         startService(i);
 732     }
 733
 734     /**
 735      * Request the operation for moving the file/folder from one path to another
 736      *
 737      * @param data              Intent received
 738      * @param resultCode        Result code received
 739      */
 740     private void requestMoveOperation(Intent data, int resultCode) {
 741         OCFile folderToMoveAt = (OCFile) data.getParcelableExtra(MoveActivity.EXTRA_CURRENT_FOLDER);
 742         OCFile targetFile = (OCFile) data.getParcelableExtra(MoveActivity.EXTRA_TARGET_FILE);
 743         getFileOperationsHelper().moveFile(folderToMoveAt, targetFile);
 744     }
 745
 746     @Override
 747     public void onBackPressed() {
 748         OCFileListFragment listOfFiles = getListOfFilesFragment();
 749         if (mDualPane || getSecondFragment() == null) {
 750             if (listOfFiles != null) {  // should never be null, indeed
 751                 if (mDirectories.getCount() <= 1) {
 752                     finish();
 753                     return;
 754                 }
 755                 int levelsUp = listOfFiles.onBrowseUp();
 756                 for (int i=0; i < levelsUp && mDirectories.getCount() > 1 ; i++) {
 757                     popDirname();
 758                 }
 759             }
 760         }
 761         if (listOfFiles != null) {  // should never be null, indeed
 762             setFile(listOfFiles.getCurrentFile());
 763         }
 764         cleanSecondFragment();
 765
 766     }
 767
 768     @Override
 769     protected void onSaveInstanceState(Bundle outState) {
 770         // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
 771         Log_OC.e(TAG, "onSaveInstanceState() start");
 772         super.onSaveInstanceState(outState);
 773         outState.putParcelable(FileDisplayActivity.KEY_WAITING_TO_PREVIEW, mWaitingToPreview);
 774         outState.putBoolean(FileDisplayActivity.KEY_SYNC_IN_PROGRESS, mSyncInProgress);
 775         //outState.putBoolean(FileDisplayActivity.KEY_REFRESH_SHARES_IN_PROGRESS, mRefreshSharesInProgress);
 776         outState.putParcelable(FileDisplayActivity.KEY_WAITING_TO_SEND, mWaitingToSend);
 777
 778         Log_OC.d(TAG, "onSaveInstanceState() end");
 779     }
 780
 781
 782
 783     @Override
 784     protected void onResume() {
 785         super.onResume();
 786         Log_OC.e(TAG, "onResume() start");
 787
 788         // refresh list of files
 789         refreshListOfFilesFragment();
 790
 791         // Listen for sync messages
 792         IntentFilter syncIntentFilter = new IntentFilter(FileSyncAdapter.EVENT_FULL_SYNC_START);
 793         syncIntentFilter.addAction(FileSyncAdapter.EVENT_FULL_SYNC_END);
 794         syncIntentFilter.addAction(FileSyncAdapter.EVENT_FULL_SYNC_FOLDER_CONTENTS_SYNCED);
 795         syncIntentFilter.addAction(SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_CONTENTS_SYNCED);
 796         syncIntentFilter.addAction(SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_SHARES_SYNCED);
 797         mSyncBroadcastReceiver = new SyncBroadcastReceiver();
 798         registerReceiver(mSyncBroadcastReceiver, syncIntentFilter);
 799         //LocalBroadcastManager.getInstance(this).registerReceiver(mSyncBroadcastReceiver, syncIntentFilter);
 800
 801         // Listen for upload messages
 802         IntentFilter uploadIntentFilter = new IntentFilter(FileUploader.getUploadFinishMessage());
 803         mUploadFinishReceiver = new UploadFinishReceiver();
 804         registerReceiver(mUploadFinishReceiver, uploadIntentFilter);
 805
 806         // Listen for download messages
 807         IntentFilter downloadIntentFilter = new IntentFilter(FileDownloader.getDownloadAddedMessage());
 808         downloadIntentFilter.addAction(FileDownloader.getDownloadFinishMessage());
 809         mDownloadFinishReceiver = new DownloadFinishReceiver();
 810         registerReceiver(mDownloadFinishReceiver, downloadIntentFilter);
 811
 812         Log_OC.d(TAG, "onResume() end");
 813     }
 814
 815
 816     @Override
 817     protected void onPause() {
 818         Log_OC.e(TAG, "onPause() start");
 819         if (mSyncBroadcastReceiver != null) {
 820             unregisterReceiver(mSyncBroadcastReceiver);
 821             //LocalBroadcastManager.getInstance(this).unregisterReceiver(mSyncBroadcastReceiver);
 822             mSyncBroadcastReceiver = null;
 823         }
 824         if (mUploadFinishReceiver != null) {
 825             unregisterReceiver(mUploadFinishReceiver);
 826             mUploadFinishReceiver = null;
 827         }
 828         if (mDownloadFinishReceiver != null) {
 829             unregisterReceiver(mDownloadFinishReceiver);
 830             mDownloadFinishReceiver = null;
 831         }
 832
 833
 834         Log_OC.d(TAG, "onPause() end");
 835         super.onPause();
 836     }
 837
 838
 839     @Override
 840     protected Dialog onCreateDialog(int id) {
 841         Dialog dialog = null;
 842         AlertDialog.Builder builder;
 843         switch (id) {
 844         case DIALOG_SHORT_WAIT: {
 845             ProgressDialog working_dialog = new ProgressDialog(this);
 846             working_dialog.setMessage(getResources().getString(
 847                     R.string.wait_a_moment));
 848             working_dialog.setIndeterminate(true);
 849             working_dialog.setCancelable(false);
 850             dialog = working_dialog;
 851             break;
 852         }
 853         case DIALOG_CHOOSE_UPLOAD_SOURCE: {
 854
 855
 856             String[] allTheItems = { getString(R.string.actionbar_upload_files),
 857                     getString(R.string.actionbar_upload_from_apps) };
 858
 859             builder = new AlertDialog.Builder(this);
 860             builder.setTitle(R.string.actionbar_upload);
 861             builder.setItems(allTheItems, new DialogInterface.OnClickListener() {
 862                 public void onClick(DialogInterface dialog, int item) {
 863                     if (item == 0) {
 864                         // if (!mDualPane) {
 865                             Intent action = new Intent(FileDisplayActivity.this, UploadFilesActivity.class);
 866                             action.putExtra(UploadFilesActivity.EXTRA_ACCOUNT, FileDisplayActivity.this.getAccount());
 867                             startActivityForResult(action, ACTION_SELECT_MULTIPLE_FILES);
 868                             // } else {
 869                             // TODO create and handle new fragment
 870                             // LocalFileListFragment
 871                             // }
 872                     } else if (item == 1) {
 873                         Intent action = new Intent(Intent.ACTION_GET_CONTENT);
 874                         action = action.setType("*/*").addCategory(Intent.CATEGORY_OPENABLE);
 875                         startActivityForResult(Intent.createChooser(action, getString(R.string.upload_chooser_title)),
 876                                 ACTION_SELECT_CONTENT_FROM_APPS);
 877                     }
 878                 }
 879             });
 880             dialog = builder.create();
 881             break;
 882         }
 883         case DIALOG_CERT_NOT_SAVED: {
 884             builder = new AlertDialog.Builder(this);
 885             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
 886             builder.setCancelable(false);
 887             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
 888                 @Override
 889                 public void onClick(DialogInterface dialog, int which) {
 890                     dialog.dismiss();
 891                 };
 892             });
 893             dialog = builder.create();
 894             break;
 895         }
 896         default:
 897             dialog = null;
 898         }
 899
 900         return dialog;
 901     }
 902
 903     /**
 904      * Translates a content URI of an content to a physical path on the disk
 905      *
 906      * @param uri The URI to resolve
 907      * @return The path to the content or null if it could not be found
 908      */
 909     public String getPath(Uri uri) {
 910         final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
 911
 912         // DocumentProvider
 913         if (isKitKat && DocumentsContract.isDocumentUri(getApplicationContext(), uri)) {
 914             // ExternalStorageProvider
 915             if (isExternalStorageDocument(uri)) {
 916                 final String docId = DocumentsContract.getDocumentId(uri);
 917                 final String[] split = docId.split(":");
 918                 final String type = split[0];
 919
 920                 if ("primary".equalsIgnoreCase(type)) {
 921                     return Environment.getExternalStorageDirectory() + "/" + split[1];
 922                 }
 923             }
 924             // DownloadsProvider
 925             else if (isDownloadsDocument(uri)) {
 926
 927                 final String id = DocumentsContract.getDocumentId(uri);
 928                 final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),
 929                         Long.valueOf(id));
 930
 931                 return getDataColumn(getApplicationContext(), contentUri, null, null);
 932             }
 933             // MediaProvider
 934             else if (isMediaDocument(uri)) {
 935                 final String docId = DocumentsContract.getDocumentId(uri);
 936                 final String[] split = docId.split(":");
 937                 final String type = split[0];
 938
 939                 Uri contentUri = null;
 940                 if ("image".equals(type)) {
 941                     contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
 942                 } else if ("video".equals(type)) {
 943                     contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
 944                 } else if ("audio".equals(type)) {
 945                     contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
 946                 }
 947
 948                 final String selection = "_id=?";
 949                 final String[] selectionArgs = new String[] { split[1] };
 950
 951                 return getDataColumn(getApplicationContext(), contentUri, selection, selectionArgs);
 952             }
 953             // Documents providers returned as content://...
 954             else if (isContentDocument(uri)) {
 955                 return uri.toString();
 956             }
 957         }
 958         // MediaStore (and general)
 959         else if ("content".equalsIgnoreCase(uri.getScheme())) {
 960
 961             // Return the remote address
 962             if (isGooglePhotosUri(uri))
 963                 return uri.getLastPathSegment();
 964
 965             return getDataColumn(getApplicationContext(), uri, null, null);
 966         }
 967         // File
 968         else if ("file".equalsIgnoreCase(uri.getScheme())) {
 969             return uri.getPath();
 970         }
 971         return null;
 972     }
 973
 974     /**
 975      * Get the value of the data column for this Uri. This is useful for
 976      * MediaStore Uris, and other file-based ContentProviders.
 977      *
 978      * @param context The context.
 979      * @param uri The Uri to query.
 980      * @param selection (Optional) Filter used in the query.
 981      * @param selectionArgs (Optional) Selection arguments used in the query.
 982      * @return The value of the _data column, which is typically a file path.
 983      */
 984     public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
 985
 986         Cursor cursor = null;
 987         final String column = "_data";
 988         final String[] projection = { column };
 989
 990         try {
 991             cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
 992             if (cursor != null && cursor.moveToFirst()) {
 993
 994                 final int column_index = cursor.getColumnIndexOrThrow(column);
 995                 return cursor.getString(column_index);
 996             }
 997         } finally {
 998             if (cursor != null)
 999                 cursor.close();
1000         }
1001         return null;
1002     }
1003
1004     /**
1005      * @param uri The Uri to check.
1006      * @return Whether the Uri authority is ExternalStorageProvider.
1007      */
1008     public static boolean isExternalStorageDocument(Uri uri) {
1009         return "com.android.externalstorage.documents".equals(uri.getAuthority());
1010     }
1011
1012     /**
1013      * @param uri The Uri to check.
1014      * @return Whether the Uri authority is DownloadsProvider.
1015      */
1016     public static boolean isDownloadsDocument(Uri uri) {
1017         return "com.android.providers.downloads.documents".equals(uri.getAuthority());
1018     }
1019
1020     /**
1021      * @param uri The Uri to check.
1022      * @return Whether the Uri authority is MediaProvider.
1023      */
1024     public static boolean isMediaDocument(Uri uri) {
1025         return "com.android.providers.media.documents".equals(uri.getAuthority());
1026     }
1027
1028     /**
1029      * @param uri The Uri to check.
1030      * @return Whether the Uri authority is Google Photos.
1031      */
1032     public static boolean isGooglePhotosUri(Uri uri) {
1033         return "com.google.android.apps.photos.content".equals(uri.getAuthority());
1034     }
1035
1036     /**
1037      *
1038      * @param uri The Uri to check.
1039      * @return Whether the Uri is from a content provider as kind "content://..."
1040      */
1041     public static boolean isContentDocument(Uri uri) {
1042         return uri.toString().startsWith(URI_CONTENT_SCHEME);
1043     }
1044
1045     /**
1046      * Pushes a directory to the drop down list
1047      * @param directory to push
1048      * @throws IllegalArgumentException If the {@link OCFile#isFolder()} returns false.
1049      */
1050     public void pushDirname(OCFile directory) {
1051         if(!directory.isFolder()){
1052             throw new IllegalArgumentException("Only directories may be pushed!");
1053         }
1054         mDirectories.insert(directory.getFileName(), 0);
1055         setFile(directory);
1056     }
1057
1058     /**
1059      * Pops a directory name from the drop down list
1060      * @return True, unless the stack is empty
1061      */
1062     public boolean popDirname() {
1063         mDirectories.remove(mDirectories.getItem(0));
1064         return !mDirectories.isEmpty();
1065     }
1066
1067     // Custom array adapter to override text colors
1068     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
1069
1070         public CustomArrayAdapter(FileDisplayActivity ctx, int view) {
1071             super(ctx, view);
1072         }
1073
1074         public View getView(int position, View convertView, ViewGroup parent) {
1075             View v = super.getView(position, convertView, parent);
1076
1077             ((TextView) v).setTextColor(getResources().getColorStateList(
1078                     android.R.color.white));
1079
1080             fixRoot((TextView) v );
1081             return v;
1082         }
1083
1084         public View getDropDownView(int position, View convertView,
1085                 ViewGroup parent) {
1086             View v = super.getDropDownView(position, convertView, parent);
1087
1088             ((TextView) v).setTextColor(getResources().getColorStateList(
1089                     android.R.color.white));
1090
1091             fixRoot((TextView) v );
1092             return v;
1093         }
1094
1095         private void fixRoot(TextView v) {
1096             if (v.getText().equals(OCFile.PATH_SEPARATOR)) {
1097                 v.setText(R.string.default_display_name_for_root_folder);
1098             }
1099         }
1100
1101     }
1102
1103     private class SyncBroadcastReceiver extends BroadcastReceiver {
1104
1105         /**
1106          * {@link BroadcastReceiver} to enable syncing feedback in UI
1107          */
1108         @Override
1109         public void onReceive(Context context, Intent intent) {
1110             try {
1111                 String event = intent.getAction();
1112                 Log_OC.d(TAG, "Received broadcast " + event);
1113                 String accountName = intent.getStringExtra(FileSyncAdapter.EXTRA_ACCOUNT_NAME);
1114                 String synchFolderRemotePath = intent.getStringExtra(FileSyncAdapter.EXTRA_FOLDER_PATH);
1115                 RemoteOperationResult synchResult = (RemoteOperationResult)intent.getSerializableExtra(FileSyncAdapter.EXTRA_RESULT);
1116                 boolean sameAccount = (getAccount() != null && accountName.equals(getAccount().name) && getStorageManager() != null);
1117
1118                 if (sameAccount) {
1119
1120                     if (FileSyncAdapter.EVENT_FULL_SYNC_START.equals(event)) {
1121                         mSyncInProgress = true;
1122
1123                     } else {
1124                         OCFile currentFile = (getFile() == null) ? null : getStorageManager().getFileByPath(getFile().getRemotePath());
1125                         OCFile currentDir = (getCurrentDir() == null) ? null : getStorageManager().getFileByPath(getCurrentDir().getRemotePath());
1126
1127                         if (currentDir == null) {
1128                             // current folder was removed from the server
1129                             Toast.makeText( FileDisplayActivity.this,
1130                                             String.format(getString(R.string.sync_current_folder_was_removed), mDirectories.getItem(0)),
1131                                             Toast.LENGTH_LONG)
1132                                 .show();
1133                             browseToRoot();
1134
1135                         } else {
1136                             if (currentFile == null && !getFile().isFolder()) {
1137                                 // currently selected file was removed in the server, and now we know it
1138                                 cleanSecondFragment();
1139                                 currentFile = currentDir;
1140                             }
1141
1142                             if (synchFolderRemotePath != null && currentDir.getRemotePath().equals(synchFolderRemotePath)) {
1143                                 OCFileListFragment fileListFragment = getListOfFilesFragment();
1144                                 if (fileListFragment != null) {
1145                                     fileListFragment.listDirectory(currentDir);
1146                                 }
1147                             }
1148                             setFile(currentFile);
1149                         }
1150
1151                         mSyncInProgress = (!FileSyncAdapter.EVENT_FULL_SYNC_END.equals(event) && !SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_SHARES_SYNCED.equals(event));
1152
1153                         if (SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_CONTENTS_SYNCED.
1154                                     equals(event) &&
1155                                 /// TODO refactor and make common
1156                                 synchResult != null && !synchResult.isSuccess() &&
1157                                 (synchResult.getCode() == ResultCode.UNAUTHORIZED   ||
1158                                     synchResult.isIdPRedirection()                  ||
1159                                     (synchResult.isException() && synchResult.getException()
1160                                             instanceof AuthenticatorException))) {
1161
1162                             OwnCloudClient client = null;
1163                             try {
1164                                 OwnCloudAccount ocAccount =
1165                                         new OwnCloudAccount(getAccount(), context);
1166                                 client = (OwnCloudClientManagerFactory.getDefaultSingleton().
1167                                         removeClientFor(ocAccount));
1168                                 // TODO get rid of these exceptions
1169                             } catch (AccountNotFoundException e) {
1170                                 e.printStackTrace();
1171                             } catch (AuthenticatorException e) {
1172                                 e.printStackTrace();
1173                             } catch (OperationCanceledException e) {
1174                                 e.printStackTrace();
1175                             } catch (IOException e) {
1176                                 e.printStackTrace();
1177                             }
1178
1179                             if (client != null) {
1180                                 OwnCloudCredentials cred = client.getCredentials();
1181                                 if (cred != null) {
1182                                     AccountManager am = AccountManager.get(context);
1183                                     if (cred.authTokenExpires()) {
1184                                         am.invalidateAuthToken(
1185                                                 getAccount().type,
1186                                                 cred.getAuthToken()
1187                                         );
1188                                     } else {
1189                                         am.clearPassword(getAccount());
1190                                     }
1191                                 }
1192                             }
1193
1194                             requestCredentialsUpdate();
1195
1196                         }
1197                     }
1198                     removeStickyBroadcast(intent);
1199                     Log_OC.d(TAG, "Setting progress visibility to " + mSyncInProgress);
1200                     setSupportProgressBarIndeterminateVisibility(mSyncInProgress /*|| mRefreshSharesInProgress*/);
1201
1202                     setBackgroundText();
1203
1204                 }
1205
1206                 if (synchResult != null) {
1207                     if (synchResult.getCode().equals(RemoteOperationResult.ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED)) {
1208                         mLastSslUntrustedServerResult = synchResult;
1209                     }
1210                 }
1211             } catch (RuntimeException e) {
1212                 // avoid app crashes after changing the serial id of RemoteOperationResult
1213                 // in owncloud library with broadcast notifications pending to process
1214                 removeStickyBroadcast(intent);
1215             }
1216         }
1217     }
1218
1219     /**
1220      * Show a text message on screen view for notifying user if content is
1221      * loading or folder is empty
1222      */
1223     private void setBackgroundText() {
1224         OCFileListFragment ocFileListFragment = getListOfFilesFragment();
1225         if (ocFileListFragment != null) {
1226             int message = R.string.file_list_loading;
1227             if (!mSyncInProgress) {
1228                 // In case file list is empty
1229                 message = R.string.file_list_empty;
1230             }
1231             ocFileListFragment.setMessageForEmptyList(getString(message));
1232         } else {
1233             Log_OC.e(TAG, "OCFileListFragment is null");
1234         }
1235     }
1236
1237     /**
1238      * Once the file upload has finished -> update view
1239      */
1240     private class UploadFinishReceiver extends BroadcastReceiver {
1241         /**
1242          * Once the file upload has finished -> update view
1243          *  @author David A. Velasco
1244          * {@link BroadcastReceiver} to enable upload feedback in UI
1245          */
1246         @Override
1247         public void onReceive(Context context, Intent intent) {
1248             try {
1249                 String uploadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
1250                 String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
1251                 boolean sameAccount = getAccount() != null && accountName.equals(getAccount().name);
1252                 OCFile currentDir = getCurrentDir();
1253                 boolean isDescendant = (currentDir != null) && (uploadedRemotePath != null) &&
1254                         (uploadedRemotePath.startsWith(currentDir.getRemotePath()));
1255
1256                 if (sameAccount && isDescendant) {
1257                     refreshListOfFilesFragment();
1258                 }
1259
1260                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
1261                 boolean renamedInUpload = getFile().getRemotePath().
1262                         equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
1263                 boolean sameFile = getFile().getRemotePath().equals(uploadedRemotePath) ||
1264                         renamedInUpload;
1265                 FileFragment details = getSecondFragment();
1266                 boolean detailFragmentIsShown = (details != null &&
1267                         details instanceof FileDetailFragment);
1268
1269                 if (sameAccount && sameFile && detailFragmentIsShown) {
1270                     if (uploadWasFine) {
1271                         setFile(getStorageManager().getFileByPath(uploadedRemotePath));
1272                     }
1273                     if (renamedInUpload) {
1274                         String newName = (new File(uploadedRemotePath)).getName();
1275                         Toast msg = Toast.makeText(
1276                                 context,
1277                                 String.format(
1278                                         getString(R.string.filedetails_renamed_in_upload_msg),
1279                                         newName),
1280                                 Toast.LENGTH_LONG);
1281                         msg.show();
1282                     }
1283                     if (uploadWasFine || getFile().fileExists()) {
1284                         ((FileDetailFragment)details).updateFileDetails(false, true);
1285                     } else {
1286                         cleanSecondFragment();
1287                     }
1288
1289                     // Force the preview if the file is an image
1290                     if (uploadWasFine && PreviewImageFragment.canBePreviewed(getFile())) {
1291                         startImagePreview(getFile());
1292                     } // TODO what about other kind of previews?
1293                 }
1294
1295             } finally {
1296                 if (intent != null) {
1297                     removeStickyBroadcast(intent);
1298                 }
1299             }
1300
1301         }
1302
1303     }
1304
1305
1306     /**
1307      * Class waiting for broadcast events from the {@link FielDownloader} service.
1308      *
1309      * Updates the UI when a download is started or finished, provided that it is relevant for the
1310      * current folder.
1311      */
1312     private class DownloadFinishReceiver extends BroadcastReceiver {
1313         @Override
1314         public void onReceive(Context context, Intent intent) {
1315             try {
1316                 boolean sameAccount = isSameAccount(context, intent);
1317                 String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
1318                 boolean isDescendant = isDescendant(downloadedRemotePath);
1319
1320                 if (sameAccount && isDescendant) {
1321                     refreshListOfFilesFragment();
1322                     refreshSecondFragment(intent.getAction(), downloadedRemotePath, intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false));
1323                 }
1324
1325                 if (mWaitingToSend != null) {
1326                     mWaitingToSend = getStorageManager().getFileByPath(mWaitingToSend.getRemotePath()); // Update the file to send
1327                     if (mWaitingToSend.isDown()) {
1328                         sendDownloadedFile();
1329                     }
1330                 }
1331
1332             } finally {
1333                 if (intent != null) {
1334                     removeStickyBroadcast(intent);
1335                 }
1336             }
1337         }
1338
1339         private boolean isDescendant(String downloadedRemotePath) {
1340             OCFile currentDir = getCurrentDir();
1341             return (currentDir != null && downloadedRemotePath != null && downloadedRemotePath.startsWith(currentDir.getRemotePath()));
1342         }
1343
1344         private boolean isSameAccount(Context context, Intent intent) {
1345             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
1346             return (accountName != null && getAccount() != null && accountName.equals(getAccount().name));
1347         }
1348     }
1349
1350
1351     public void browseToRoot() {
1352         OCFileListFragment listOfFiles = getListOfFilesFragment();
1353         if (listOfFiles != null) {  // should never be null, indeed
1354             while (mDirectories.getCount() > 1) {
1355                 popDirname();
1356             }
1357             OCFile root = getStorageManager().getFileByPath(OCFile.ROOT_PATH);
1358             listOfFiles.listDirectory(root);
1359             setFile(listOfFiles.getCurrentFile());
1360             startSyncFolderOperation(root, false);
1361         }
1362         cleanSecondFragment();
1363     }
1364
1365
1366     public void browseTo(OCFile folder) {
1367         if (folder == null || !folder.isFolder()) {
1368             throw new IllegalArgumentException("Trying to browse to invalid folder " + folder);
1369         }
1370         OCFileListFragment listOfFiles = getListOfFilesFragment();
1371         if (listOfFiles != null) {
1372             setNavigationListWithFolder(folder);
1373             listOfFiles.listDirectory(folder);
1374             setFile(listOfFiles.getCurrentFile());
1375             startSyncFolderOperation(folder, false);
1376         } else {
1377             Log_OC.e(TAG, "Unexpected null when accessing list fragment");
1378         }
1379         cleanSecondFragment();
1380     }
1381
1382
1383     /**
1384      * {@inheritDoc}
1385      *
1386      * Updates action bar and second fragment, if in dual pane mode.
1387      */
1388     @Override
1389     public void onBrowsedDownTo(OCFile directory) {
1390         pushDirname(directory);
1391         cleanSecondFragment();
1392
1393         // Sync Folder
1394         startSyncFolderOperation(directory, false);
1395
1396     }
1397
1398     /**
1399      * Shows the information of the {@link OCFile} received as a
1400      * parameter in the second fragment.
1401      *
1402      * @param file          {@link OCFile} whose details will be shown
1403      */
1404     @Override
1405     public void showDetails(OCFile file) {
1406         Fragment detailFragment = new FileDetailFragment(file, getAccount());
1407         setSecondFragment(detailFragment);
1408         updateFragmentsVisibility(true);
1409         updateNavigationElementsInActionBar(file);
1410         setFile(file);
1411     }
1412
1413
1414     /**
1415      * TODO
1416      */
1417     private void updateNavigationElementsInActionBar(OCFile chosenFile) {
1418         ActionBar actionBar = getSupportActionBar();
1419         if (chosenFile == null || mDualPane) {
1420             // only list of files - set for browsing through folders
1421             OCFile currentDir = getCurrentDir();
1422             boolean noRoot = (currentDir != null && currentDir.getParentId() != 0);
1423             actionBar.setDisplayHomeAsUpEnabled(noRoot);
1424             actionBar.setDisplayShowTitleEnabled(!noRoot);
1425             if (!noRoot) {
1426                 actionBar.setTitle(getString(R.string.default_display_name_for_root_folder));
1427             }
1428             actionBar.setNavigationMode(!noRoot ? ActionBar.NAVIGATION_MODE_STANDARD : ActionBar.NAVIGATION_MODE_LIST);
1429             actionBar.setListNavigationCallbacks(mDirectories, this);   // assuming mDirectories is updated
1430
1431         } else {
1432             actionBar.setDisplayHomeAsUpEnabled(true);
1433             actionBar.setDisplayShowTitleEnabled(true);
1434             actionBar.setTitle(chosenFile.getFileName());
1435             actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
1436         }
1437     }
1438
1439
1440     @Override
1441     protected ServiceConnection newTransferenceServiceConnection() {
1442         return new ListServiceConnection();
1443     }
1444
1445     /** Defines callbacks for service binding, passed to bindService() */
1446     private class ListServiceConnection implements ServiceConnection {
1447
1448         @Override
1449         public void onServiceConnected(ComponentName component, IBinder service) {
1450             if (component.equals(new ComponentName(FileDisplayActivity.this, FileDownloader.class))) {
1451                 Log_OC.d(TAG, "Download service connected");
1452                 mDownloaderBinder = (FileDownloaderBinder) service;
1453                 if (mWaitingToPreview != null)
1454                     if (getStorageManager() != null) {
1455                         mWaitingToPreview = getStorageManager().getFileById(mWaitingToPreview.getFileId()); // update the file
1456                         if (!mWaitingToPreview.isDown()) {
1457                             requestForDownload();
1458                         }
1459                 }
1460
1461             } else if (component.equals(new ComponentName(FileDisplayActivity.this, FileUploader.class))) {
1462                 Log_OC.d(TAG, "Upload service connected");
1463                 mUploaderBinder = (FileUploaderBinder) service;
1464             } else {
1465                 return;
1466             }
1467             // a new chance to get the mDownloadBinder through getFileDownloadBinder() - THIS IS A MESS
1468             OCFileListFragment listOfFiles = getListOfFilesFragment();
1469             if (listOfFiles != null) {
1470                 listOfFiles.listDirectory();
1471             }
1472             FileFragment secondFragment = getSecondFragment();
1473             if (secondFragment != null && secondFragment instanceof FileDetailFragment) {
1474                 FileDetailFragment detailFragment = (FileDetailFragment)secondFragment;
1475                 detailFragment.listenForTransferProgress();
1476                 detailFragment.updateFileDetails(false, false);
1477             }
1478         }
1479
1480         @Override
1481         public void onServiceDisconnected(ComponentName component) {
1482             if (component.equals(new ComponentName(FileDisplayActivity.this, FileDownloader.class))) {
1483                 Log_OC.d(TAG, "Download service disconnected");
1484                 mDownloaderBinder = null;
1485             } else if (component.equals(new ComponentName(FileDisplayActivity.this, FileUploader.class))) {
1486                 Log_OC.d(TAG, "Upload service disconnected");
1487                 mUploaderBinder = null;
1488             }
1489         }
1490     };
1491
1492
1493
1494     /**
1495      * Launch an intent to request the PIN code to the user before letting him use the app
1496      */
1497     private void requestPinCode() {
1498         boolean pinStart = false;
1499         SharedPreferences appPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
1500         pinStart = appPrefs.getBoolean("set_pincode", false);
1501         if (pinStart) {
1502             Intent i = new Intent(getApplicationContext(), PinCodeActivity.class);
1503             i.putExtra(PinCodeActivity.EXTRA_ACTIVITY, "FileDisplayActivity");
1504             startActivity(i);
1505         }
1506     }
1507
1508
1509     @Override
1510     public void onSavedCertificate() {
1511         startSyncFolderOperation(getCurrentDir(), false);
1512     }
1513
1514
1515     @Override
1516     public void onFailedSavingCertificate() {
1517         showDialog(DIALOG_CERT_NOT_SAVED);
1518     }
1519
1520     @Override
1521     public void onCancelCertificate() {
1522         // nothing to do
1523     }
1524
1525     /**
1526      * Updates the view associated to the activity after the finish of some operation over files
1527      * in the current account.
1528      *
1529      * @param operation     Removal operation performed.
1530      * @param result        Result of the removal.
1531      */
1532     @Override
1533     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
1534         super.onRemoteOperationFinish(operation, result);
1535
1536         if (operation instanceof RemoveFileOperation) {
1537             onRemoveFileOperationFinish((RemoveFileOperation)operation, result);
1538
1539         } else if (operation instanceof RenameFileOperation) {
1540             onRenameFileOperationFinish((RenameFileOperation)operation, result);
1541
1542         } else if (operation instanceof SynchronizeFileOperation) {
1543             onSynchronizeFileOperationFinish((SynchronizeFileOperation)operation, result);
1544
1545         } else if (operation instanceof CreateFolderOperation) {
1546             onCreateFolderOperationFinish((CreateFolderOperation)operation, result);
1547
1548         } else if (operation instanceof CreateShareOperation) {
1549             onCreateShareOperationFinish((CreateShareOperation) operation, result);
1550
1551         } else if (operation instanceof UnshareLinkOperation) {
1552             onUnshareLinkOperationFinish((UnshareLinkOperation)operation, result);
1553
1554         } else if (operation instanceof MoveFileOperation) {
1555             onMoveFileOperationFinish((MoveFileOperation)operation, result);
1556         }
1557
1558     }
1559
1560
1561     private void onCreateShareOperationFinish(CreateShareOperation operation, RemoteOperationResult result) {
1562         if (result.isSuccess()) {
1563             refreshShowDetails();
1564             refreshListOfFilesFragment();
1565         }
1566     }
1567
1568
1569     private void onUnshareLinkOperationFinish(UnshareLinkOperation operation, RemoteOperationResult result) {
1570         if (result.isSuccess()) {
1571             refreshShowDetails();
1572             refreshListOfFilesFragment();
1573
1574         } else if (result.getCode() == ResultCode.SHARE_NOT_FOUND) {
1575             cleanSecondFragment();
1576             refreshListOfFilesFragment();
1577         }
1578     }
1579
1580     private void refreshShowDetails() {
1581         FileFragment details = getSecondFragment();
1582         if (details != null) {
1583             OCFile file = details.getFile();
1584             if (file != null) {
1585                 file = getStorageManager().getFileByPath(file.getRemotePath());
1586                 if (details instanceof PreviewMediaFragment) {
1587                     // Refresh  OCFile of the fragment
1588                     ((PreviewMediaFragment) details).updateFile(file);
1589                 } else {
1590                     showDetails(file);
1591                 }
1592             }
1593             invalidateOptionsMenu();
1594         }
1595     }
1596
1597     /**
1598      * Updates the view associated to the activity after the finish of an operation trying to remove a
1599      * file.
1600      *
1601      * @param operation     Removal operation performed.
1602      * @param result        Result of the removal.
1603      */
1604     private void onRemoveFileOperationFinish(RemoveFileOperation operation, RemoteOperationResult result) {
1605         dismissLoadingDialog();
1606
1607         Toast msg = Toast.makeText(this, ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1608                 Toast.LENGTH_LONG);
1609         msg.show();
1610
1611         if (result.isSuccess()) {
1612             OCFile removedFile = operation.getFile();
1613             FileFragment second = getSecondFragment();
1614             if (second != null && removedFile.equals(second.getFile())) {
1615                 if (second instanceof PreviewMediaFragment) {
1616                     ((PreviewMediaFragment)second).stopPreview(true);
1617                 }
1618                 setFile(getStorageManager().getFileById(removedFile.getParentId()));
1619                 cleanSecondFragment();
1620             }
1621             if (getStorageManager().getFileById(removedFile.getParentId()).equals(getCurrentDir())) {
1622                 refreshListOfFilesFragment();
1623             }
1624             invalidateOptionsMenu();
1625         } else {
1626             if (result.isSslRecoverableException()) {
1627                 mLastSslUntrustedServerResult = result;
1628                 showUntrustedCertDialog(mLastSslUntrustedServerResult);
1629             }
1630         }
1631     }
1632
1633
1634     /**
1635      * Updates the view associated to the activity after the finish of an operation trying to move a
1636      * file.
1637      *
1638      * @param operation     Move operation performed.
1639      * @param result        Result of the move operation.
1640      */
1641     private void onMoveFileOperationFinish(MoveFileOperation operation, RemoteOperationResult result) {
1642         if (result.isSuccess()) {
1643             dismissLoadingDialog();
1644             refreshListOfFilesFragment();
1645         } else {
1646             dismissLoadingDialog();
1647             try {
1648                 Toast msg = Toast.makeText(FileDisplayActivity.this,
1649                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1650                         Toast.LENGTH_LONG);
1651                 msg.show();
1652
1653             } catch (NotFoundException e) {
1654                 Log_OC.e(TAG, "Error while trying to show fail message " , e);
1655             }
1656         }
1657     }
1658
1659
1660     /**
1661      * Updates the view associated to the activity after the finish of an operation trying to rename a
1662      * file.
1663      *
1664      * @param operation     Renaming operation performed.
1665      * @param result        Result of the renaming.
1666      */
1667     private void onRenameFileOperationFinish(RenameFileOperation operation, RemoteOperationResult result) {
1668         dismissLoadingDialog();
1669         OCFile renamedFile = operation.getFile();
1670         if (result.isSuccess()) {
1671             FileFragment details = getSecondFragment();
1672             if (details != null) {
1673                 if (details instanceof FileDetailFragment && renamedFile.equals(details.getFile()) ) {
1674                     ((FileDetailFragment) details).updateFileDetails(renamedFile, getAccount());
1675                     showDetails(renamedFile);
1676
1677                 } else if (details instanceof PreviewMediaFragment && renamedFile.equals(details.getFile())) {
1678                     ((PreviewMediaFragment) details).updateFile(renamedFile);
1679                     if (PreviewMediaFragment.canBePreviewed(renamedFile)) {
1680                         int position = ((PreviewMediaFragment)details).getPosition();
1681                         startMediaPreview(renamedFile, position, true);
1682                     } else {
1683                         getFileOperationsHelper().openFile(renamedFile);
1684                     }
1685                 }
1686             }
1687
1688             if (getStorageManager().getFileById(renamedFile.getParentId()).equals(getCurrentDir())) {
1689                 refreshListOfFilesFragment();
1690             }
1691
1692         } else {
1693             Toast msg = Toast.makeText(this, ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1694                     Toast.LENGTH_LONG);
1695             msg.show();
1696
1697             if (result.isSslRecoverableException()) {
1698                 mLastSslUntrustedServerResult = result;
1699                 showUntrustedCertDialog(mLastSslUntrustedServerResult);
1700             }
1701         }
1702     }
1703
1704     private void onSynchronizeFileOperationFinish(SynchronizeFileOperation operation, RemoteOperationResult result) {
1705         dismissLoadingDialog();
1706         OCFile syncedFile = operation.getLocalFile();
1707         if (!result.isSuccess()) {
1708             if (result.getCode() == ResultCode.SYNC_CONFLICT) {
1709                 Intent i = new Intent(this, ConflictsResolveActivity.class);
1710                 i.putExtra(ConflictsResolveActivity.EXTRA_FILE, syncedFile);
1711                 i.putExtra(ConflictsResolveActivity.EXTRA_ACCOUNT, getAccount());
1712                 startActivity(i);
1713
1714             }
1715
1716         } else {
1717             if (operation.transferWasRequested()) {
1718                 onTransferStateChanged(syncedFile, true, true);
1719
1720             } else {
1721                 Toast msg = Toast.makeText(this, ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1722                         Toast.LENGTH_LONG);
1723                 msg.show();
1724             }
1725         }
1726     }
1727
1728     /**
1729      * Updates the view associated to the activity after the finish of an operation trying create a new folder
1730      *
1731      * @param operation     Creation operation performed.
1732      * @param result        Result of the creation.
1733      */
1734     private void onCreateFolderOperationFinish(CreateFolderOperation operation, RemoteOperationResult result) {
1735         if (result.isSuccess()) {
1736             dismissLoadingDialog();
1737             refreshListOfFilesFragment();
1738         } else {
1739             dismissLoadingDialog();
1740             try {
1741                 Toast msg = Toast.makeText(FileDisplayActivity.this,
1742                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
1743                         Toast.LENGTH_LONG);
1744                 msg.show();
1745
1746             } catch (NotFoundException e) {
1747                 Log_OC.e(TAG, "Error while trying to show fail message " , e);
1748             }
1749         }
1750     }
1751
1752
1753     /**
1754      * {@inheritDoc}
1755      */
1756     @Override
1757     public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading) {
1758         refreshListOfFilesFragment();
1759         FileFragment details = getSecondFragment();
1760         if (details != null && details instanceof FileDetailFragment && file.equals(details.getFile()) ) {
1761             if (downloading || uploading) {
1762                 ((FileDetailFragment)details).updateFileDetails(file, getAccount());
1763             } else {
1764                 if (!file.fileExists()) {
1765                     cleanSecondFragment();
1766                 } else {
1767                     ((FileDetailFragment)details).updateFileDetails(false, true);
1768                 }
1769             }
1770         }
1771
1772     }
1773
1774
1775     private void requestForDownload() {
1776         Account account = getAccount();
1777         if (!mDownloaderBinder.isDownloading(account, mWaitingToPreview)) {
1778             Intent i = new Intent(this, FileDownloader.class);
1779             i.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
1780             i.putExtra(FileDownloader.EXTRA_FILE, mWaitingToPreview);
1781             startService(i);
1782         }
1783     }
1784
1785
1786     private OCFile getCurrentDir() {
1787         OCFile file = getFile();
1788         if (file != null) {
1789             if (file.isFolder()) {
1790                 return file;
1791             } else if (getStorageManager() != null) {
1792                 String parentPath = file.getRemotePath().substring(0, file.getRemotePath().lastIndexOf(file.getFileName()));
1793                 return getStorageManager().getFileByPath(parentPath);
1794             }
1795         }
1796         return null;
1797     }
1798
1799     public void startSyncFolderOperation(OCFile folder, boolean ignoreETag) {
1800         long currentSyncTime = System.currentTimeMillis();
1801
1802         mSyncInProgress = true;
1803
1804         // perform folder synchronization
1805         RemoteOperation synchFolderOp = new SynchronizeFolderOperation( folder,
1806                                                                         currentSyncTime,
1807                                                                         false,
1808                                                                         getFileOperationsHelper().isSharedSupported(),
1809                                                                         ignoreETag,
1810                                                                         getStorageManager(),
1811                                                                         getAccount(),
1812                                                                         getApplicationContext()
1813                                                                       );
1814         synchFolderOp.execute(getAccount(), this, null, null);
1815
1816         setSupportProgressBarIndeterminateVisibility(true);
1817
1818         setBackgroundText();
1819     }
1820
1821     /**
1822      * Show untrusted cert dialog
1823      */
1824     public void showUntrustedCertDialog(RemoteOperationResult result) {
1825         // Show a dialog with the certificate info
1826         SslUntrustedCertDialog dialog = SslUntrustedCertDialog.newInstanceForFullSslError((CertificateCombinedException)result.getException());
1827         FragmentManager fm = getSupportFragmentManager();
1828         FragmentTransaction ft = fm.beginTransaction();
1829         dialog.show(ft, DIALOG_UNTRUSTED_CERT);
1830     }
1831
1832     private void requestForDownload(OCFile file) {
1833         Account account = getAccount();
1834         if (!mDownloaderBinder.isDownloading(account, file)) {
1835             Intent i = new Intent(this, FileDownloader.class);
1836             i.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
1837             i.putExtra(FileDownloader.EXTRA_FILE, file);
1838             startService(i);
1839         }
1840     }
1841
1842     private void sendDownloadedFile(){
1843         getFileOperationsHelper().sendDownloadedFile(mWaitingToSend);
1844         mWaitingToSend = null;
1845     }
1846
1847
1848     /**
1849      * Requests the download of the received {@link OCFile} , updates the UI
1850      * to monitor the download progress and prepares the activity to send the file
1851      * when the download finishes.
1852      *
1853      * @param file          {@link OCFile} to download and preview.
1854      */
1855     public void startDownloadForSending(OCFile file) {
1856         mWaitingToSend = file;
1857         requestForDownload(mWaitingToSend);
1858         boolean hasSecondFragment = (getSecondFragment()!= null);
1859         updateFragmentsVisibility(hasSecondFragment);
1860     }
1861
1862     /**
1863      * Opens the image gallery showing the image {@link OCFile} received as parameter.
1864      *
1865      * @param file                      Image {@link OCFile} to show.
1866      */
1867     public void startImagePreview(OCFile file) {
1868         Intent showDetailsIntent = new Intent(this, PreviewImageActivity.class);
1869         showDetailsIntent.putExtra(EXTRA_FILE, file);
1870         showDetailsIntent.putExtra(EXTRA_ACCOUNT, getAccount());
1871         startActivity(showDetailsIntent);
1872
1873     }
1874
1875     /**
1876      * Stars the preview of an already down media {@link OCFile}.
1877      *
1878      * @param file                      Media {@link OCFile} to preview.
1879      * @param startPlaybackPosition     Media position where the playback will be started, in milliseconds.
1880      * @param autoplay                  When 'true', the playback will start without user interactions.
1881      */
1882     public void startMediaPreview(OCFile file, int startPlaybackPosition, boolean autoplay) {
1883         Fragment mediaFragment = new PreviewMediaFragment(file, getAccount(), startPlaybackPosition, autoplay);
1884         setSecondFragment(mediaFragment);
1885         updateFragmentsVisibility(true);
1886         updateNavigationElementsInActionBar(file);
1887         setFile(file);
1888     }
1889
1890     /**
1891      * Requests the download of the received {@link OCFile} , updates the UI
1892      * to monitor the download progress and prepares the activity to preview
1893      * or open the file when the download finishes.
1894      *
1895      * @param file          {@link OCFile} to download and preview.
1896      */
1897     public void startDownloadForPreview(OCFile file) {
1898         Fragment detailFragment = new FileDetailFragment(file, getAccount());
1899         setSecondFragment(detailFragment);
1900         mWaitingToPreview = file;
1901         requestForDownload();
1902         updateFragmentsVisibility(true);
1903         updateNavigationElementsInActionBar(file);
1904         setFile(file);
1905     }
1906
1907
1908     public void cancelTransference(OCFile file) {
1909         getFileOperationsHelper().cancelTransference(file);
1910         if (mWaitingToPreview != null &&
1911                 mWaitingToPreview.getRemotePath().equals(file.getRemotePath())) {
1912             mWaitingToPreview = null;
1913         }
1914         if (mWaitingToSend != null &&
1915                 mWaitingToSend.getRemotePath().equals(file.getRemotePath())) {
1916             mWaitingToSend = null;
1917         }
1918         onTransferStateChanged(file, false, false);
1919     }
1920
1921     @Override
1922     public void onRefresh(boolean ignoreETag) {
1923         refreshList(ignoreETag);
1924     }
1925
1926     @Override
1927     public void onRefresh() {
1928         refreshList(true);
1929     }
1930
1931     private void refreshList(boolean ignoreETag) {
1932         OCFileListFragment listOfFiles = getListOfFilesFragment();
1933         if (listOfFiles != null) {
1934             OCFile folder = listOfFiles.getCurrentFile();
1935             if (folder != null) {
1936                 /*mFile = mContainerActivity.getStorageManager().getFileById(mFile.getFileId());
1937                 listDirectory(mFile);*/
1938                 startSyncFolderOperation(folder, ignoreETag);
1939             }
1940         }
1941     }
1942
1943     private void sortByDate(boolean ascending){
1944         getListOfFilesFragment().sortByDate(ascending);
1945     }
1946
1947     private void sortBySize(boolean ascending){
1948         getListOfFilesFragment().sortBySize(ascending);
1949     }
1950
1951     private void sortByName(boolean ascending){
1952         getListOfFilesFragment().sortByName(ascending);
1953     }
1954
1955     /**
1956      * Get the file extension if it is on path as type "content://.../DocInfo.doc"
1957      * @param filepath: Content Uri converted to string format
1958      * @return String: fileExtension (type '.pdf'). Empty if no extension
1959      */
1960     private String getComposedFileExtension(String filepath) {
1961         String fileExtension = "";
1962         String fileNameInContentUri = filepath.substring(filepath.lastIndexOf("/"));
1963
1964         // Check if extension is included in uri
1965         int pos = fileNameInContentUri.lastIndexOf('.');
1966         if (pos >= 0) {
1967             fileExtension = fileNameInContentUri.substring(pos);
1968         }
1969         return fileExtension;
1970     }
1971 }