src/com/owncloud/android/ui/fragment/FileDetailFragment.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 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 package com.owncloud.android.ui.fragment;
  19
  20 import java.io.File;
  21 import java.lang.ref.WeakReference;
  22 import java.util.ArrayList;
  23 import java.util.List;
  24
  25 import android.accounts.Account;
  26 import android.content.BroadcastReceiver;
  27 import android.content.Context;
  28 import android.content.Intent;
  29 import android.content.IntentFilter;
  30 import android.os.Bundle;
  31 import android.view.LayoutInflater;
  32 import android.view.View;
  33 import android.view.View.OnClickListener;
  34 import android.view.ViewGroup;
  35 import android.widget.CheckBox;
  36 import android.widget.ImageView;
  37 import android.widget.ProgressBar;
  38 import android.widget.TextView;
  39 import android.widget.Toast;
  40
  41 import com.actionbarsherlock.view.Menu;
  42 import com.actionbarsherlock.view.MenuInflater;
  43 import com.actionbarsherlock.view.MenuItem;
  44 import com.owncloud.android.R;
  45 import com.owncloud.android.datamodel.FileDataStorageManager;
  46 import com.owncloud.android.datamodel.OCFile;
  47 import com.owncloud.android.files.services.FileObserverService;
  48 import com.owncloud.android.files.services.FileUploader;
  49 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  50 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  51 import com.owncloud.android.lib.common.network.OnDatatransferProgressListener;
  52 import com.owncloud.android.ui.activity.FileActivity;
  53 import com.owncloud.android.ui.activity.FileDisplayActivity;
  54 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  55 import com.owncloud.android.ui.dialog.EditNameDialog;
  56 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  57 import com.owncloud.android.ui.preview.PreviewImageFragment;
  58 import com.owncloud.android.utils.DisplayUtils;
  59 import com.owncloud.android.utils.Log_OC;
  60
  61
  62 /**
  63  * This Fragment is used to display the details about a file.
  64  *
  65  * @author Bartek Przybylski
  66  * @author David A. Velasco
  67  */
  68 public class FileDetailFragment extends FileFragment implements
  69         OnClickListener,
  70         ConfirmationDialogFragment.ConfirmationDialogFragmentListener, EditNameDialogListener {
  71
  72     private FileFragment.ContainerActivity mContainerActivity;
  73
  74     private int mLayout;
  75     private View mView;
  76     private Account mAccount;
  77
  78     private UploadFinishReceiver mUploadFinishReceiver;
  79     public ProgressListener mProgressListener;
  80
  81     private static final String TAG = FileDetailFragment.class.getSimpleName();
  82     public static final String FTAG_CONFIRMATION = "REMOVE_CONFIRMATION_FRAGMENT";
  83
  84
  85     /**
  86      * Creates an empty details fragment.
  87      *
  88      * It's necessary to keep a public constructor without parameters; the system uses it when tries to reinstantiate a fragment automatically.
  89      */
  90     public FileDetailFragment() {
  91         super();
  92         mAccount = null;
  93         mLayout = R.layout.file_details_empty;
  94         mProgressListener = null;
  95     }
  96
  97     /**
  98      * Creates a details fragment.
  99      *
 100      * When 'fileToDetail' or 'ocAccount' are null, creates a dummy layout (to use when a file wasn't tapped before).
 101      *
 102      * @param fileToDetail      An {@link OCFile} to show in the fragment
 103      * @param ocAccount         An ownCloud account; needed to start downloads
 104      */
 105     public FileDetailFragment(OCFile fileToDetail, Account ocAccount) {
 106         super(fileToDetail);
 107         mAccount = ocAccount;
 108         mLayout = R.layout.file_details_empty;
 109         mProgressListener = null;
 110     }
 111
 112
 113     @Override
 114     public void onCreate(Bundle savedInstanceState) {
 115         super.onCreate(savedInstanceState);
 116         setHasOptionsMenu(true);
 117     }
 118
 119
 120     @Override
 121     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 122             Bundle savedInstanceState) {
 123         //super.onCreateView(inflater, container, savedInstanceState);
 124
 125         if (savedInstanceState != null) {
 126             setFile((OCFile)savedInstanceState.getParcelable(FileActivity.EXTRA_FILE));
 127             mAccount = savedInstanceState.getParcelable(FileActivity.EXTRA_ACCOUNT);
 128         }
 129
 130         if(getFile() != null && mAccount != null) {
 131             mLayout = R.layout.file_details_fragment;
 132         }
 133
 134         View view = null;
 135         view = inflater.inflate(mLayout, null);
 136         mView = view;
 137
 138         if (mLayout == R.layout.file_details_fragment) {
 139             mView.findViewById(R.id.fdKeepInSync).setOnClickListener(this);
 140             ProgressBar progressBar = (ProgressBar)mView.findViewById(R.id.fdProgressBar);
 141             mProgressListener = new ProgressListener(progressBar);
 142             mView.findViewById(R.id.fdCancelBtn).setOnClickListener(this);
 143         }
 144
 145         updateFileDetails(false, false);
 146         return view;
 147     }
 148
 149     /**
 150      * {@inheritDoc}
 151      */
 152     @Override
 153     public void onActivityCreated(Bundle savedInstanceState) {
 154         super.onActivityCreated(savedInstanceState);
 155         if (mAccount != null) {
 156             OCFile file = ((FileActivity)getActivity()).getStorageManager().
 157                     getFileByPath(getFile().getRemotePath());
 158             if (file != null) {
 159                 setFile(file);
 160             }
 161         }
 162     }
 163
 164
 165     @Override
 166     public void onSaveInstanceState(Bundle outState) {
 167         super.onSaveInstanceState(outState);
 168         outState.putParcelable(FileActivity.EXTRA_FILE, getFile());
 169         outState.putParcelable(FileActivity.EXTRA_ACCOUNT, mAccount);
 170     }
 171
 172     @Override
 173     public void onStart() {
 174         super.onStart();
 175         listenForTransferProgress();
 176     }
 177
 178     @Override
 179     public void onResume() {
 180         super.onResume();
 181         mUploadFinishReceiver = new UploadFinishReceiver();
 182         IntentFilter filter = new IntentFilter(FileUploader.getUploadFinishMessage());
 183         getActivity().registerReceiver(mUploadFinishReceiver, filter);
 184
 185     }
 186
 187
 188     @Override
 189     public void onPause() {
 190         super.onPause();
 191         if (mUploadFinishReceiver != null) {
 192             getActivity().unregisterReceiver(mUploadFinishReceiver);
 193             mUploadFinishReceiver = null;
 194         }
 195     }
 196
 197
 198     @Override
 199     public void onStop() {
 200         super.onStop();
 201         leaveTransferProgress();
 202     }
 203
 204
 205     @Override
 206     public View getView() {
 207         return super.getView() == null ? mView : super.getView();
 208     }
 209
 210
 211     /**
 212      * {@inheritDoc}
 213      */
 214     @Override
 215     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 216         super.onCreateOptionsMenu(menu, inflater);
 217         inflater.inflate(R.menu.file_actions_menu, menu);
 218         MenuItem item = menu.findItem(R.id.action_see_details);
 219         if (item != null) {
 220             item.setVisible(false);
 221             item.setEnabled(false);
 222         }
 223
 224         // Send file
 225         item = menu.findItem(R.id.action_send_file);
 226         boolean sendEnabled = getString(R.string.send_files_to_other_apps).equalsIgnoreCase("on");
 227         if (item != null) {
 228             if (sendEnabled) {
 229                 item.setVisible(true);
 230                 item.setEnabled(true);
 231             } else {
 232                 item.setVisible(false);
 233                 item.setEnabled(false);
 234
 235             }
 236         }
 237     }
 238
 239
 240     /**
 241      * {@inheritDoc}
 242      */
 243     @Override
 244     public void onPrepareOptionsMenu (Menu menu) {
 245         super.onPrepareOptionsMenu(menu);
 246
 247         List<Integer> toHide = new ArrayList<Integer>();
 248         List<Integer> toShow = new ArrayList<Integer>();
 249         OCFile file = getFile();
 250
 251         FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 252         boolean downloading = downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file);
 253         FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 254         boolean uploading = uploaderBinder != null && uploaderBinder.isUploading(mAccount, getFile());
 255
 256         if (downloading || uploading) {
 257             toHide.add(R.id.action_download_file);
 258             toHide.add(R.id.action_rename_file);
 259             toHide.add(R.id.action_remove_file);
 260             toHide.add(R.id.action_open_file_with);
 261             if (!downloading) {
 262                 toHide.add(R.id.action_cancel_download);
 263                 toShow.add(R.id.action_cancel_upload);
 264             } else {
 265                 toHide.add(R.id.action_cancel_upload);
 266                 toShow.add(R.id.action_cancel_download);
 267             }
 268
 269         } else if (file != null && file.isDown()) {
 270             toHide.add(R.id.action_download_file);
 271             toHide.add(R.id.action_cancel_download);
 272             toHide.add(R.id.action_cancel_upload);
 273
 274             toShow.add(R.id.action_rename_file);
 275             toShow.add(R.id.action_remove_file);
 276             toShow.add(R.id.action_open_file_with);
 277             toShow.add(R.id.action_sync_file);
 278
 279         } else if (file != null) {
 280             toHide.add(R.id.action_open_file_with);
 281             toHide.add(R.id.action_cancel_download);
 282             toHide.add(R.id.action_cancel_upload);
 283             toHide.add(R.id.action_sync_file);
 284
 285             toShow.add(R.id.action_rename_file);
 286             toShow.add(R.id.action_remove_file);
 287             toShow.add(R.id.action_download_file);
 288
 289         } else {
 290             toHide.add(R.id.action_open_file_with);
 291             toHide.add(R.id.action_cancel_download);
 292             toHide.add(R.id.action_cancel_upload);
 293             toHide.add(R.id.action_sync_file);
 294             toHide.add(R.id.action_download_file);
 295             toHide.add(R.id.action_rename_file);
 296             toHide.add(R.id.action_remove_file);
 297
 298         }
 299
 300         // Options shareLink
 301         if (!file.isShareByLink()) {
 302             toHide.add(R.id.action_unshare_file);
 303         } else {
 304             toShow.add(R.id.action_unshare_file);
 305         }
 306
 307         MenuItem item = null;
 308         for (int i : toHide) {
 309             item = menu.findItem(i);
 310             if (item != null) {
 311                 item.setVisible(false);
 312                 item.setEnabled(false);
 313             }
 314         }
 315         for (int i : toShow) {
 316             item = menu.findItem(i);
 317             if (item != null) {
 318                 item.setVisible(true);
 319                 item.setEnabled(true);
 320             }
 321         }
 322     }
 323
 324
 325     /**
 326      * {@inheritDoc}
 327      */
 328     @Override
 329     public boolean onOptionsItemSelected(MenuItem item) {
 330         switch (item.getItemId()) {
 331             case R.id.action_share_file: {
 332                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(getFile());
 333                 return true;
 334             }
 335             case R.id.action_unshare_file: {
 336                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(getFile());
 337                 return true;
 338             }
 339             case R.id.action_open_file_with: {
 340                 mContainerActivity.getFileOperationsHelper().openFile(getFile());
 341                 return true;
 342             }
 343             case R.id.action_remove_file: {
 344                 showDialogToRemoveFile();
 345                 return true;
 346             }
 347             case R.id.action_rename_file: {
 348                 showDialogToRenameFile();
 349                 return true;
 350             }
 351             case R.id.action_cancel_download:
 352             case R.id.action_cancel_upload: {
 353                 ((FileDisplayActivity)mContainerActivity).cancelTransference(getFile());
 354                 return true;
 355             }
 356             case R.id.action_download_file:
 357             case R.id.action_sync_file: {
 358                 mContainerActivity.getFileOperationsHelper().syncFile(getFile());
 359                 return true;
 360             }
 361             case R.id.action_send_file: {
 362                 // Obtain the file
 363                 if (!getFile().isDown()) {  // Download the file
 364                     Log_OC.d(TAG, getFile().getRemotePath() + " : File must be downloaded");
 365                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(getFile());
 366
 367                 } else {
 368                     ((FileDisplayActivity)mContainerActivity).getFileOperationsHelper().sendDownloadedFile(getFile());
 369                 }
 370                 return true;
 371             }
 372             default:
 373                 return false;
 374         }
 375     }
 376
 377     @Override
 378     public void onClick(View v) {
 379         switch (v.getId()) {
 380             case R.id.fdKeepInSync: {
 381                 toggleKeepInSync();
 382                 break;
 383             }
 384             case R.id.fdCancelBtn: {
 385                 ((FileDisplayActivity)mContainerActivity).cancelTransference(getFile());
 386                 break;
 387             }
 388             default:
 389                 Log_OC.e(TAG, "Incorrect view clicked!");
 390         }
 391     }
 392
 393
 394     private void toggleKeepInSync() {
 395         CheckBox cb = (CheckBox) getView().findViewById(R.id.fdKeepInSync);
 396         OCFile file = getFile();
 397         file.setKeepInSync(cb.isChecked());
 398         mContainerActivity.getStorageManager().saveFile(file);
 399
 400         /// register the OCFile instance in the observer service to monitor local updates;
 401         /// if necessary, the file is download
 402         Intent intent = new Intent(getActivity().getApplicationContext(),
 403                                    FileObserverService.class);
 404         intent.putExtra(FileObserverService.KEY_FILE_CMD,
 405                    (cb.isChecked()?
 406                            FileObserverService.CMD_ADD_OBSERVED_FILE:
 407                            FileObserverService.CMD_DEL_OBSERVED_FILE));
 408         intent.putExtra(FileObserverService.KEY_CMD_ARG_FILE, file);
 409         intent.putExtra(FileObserverService.KEY_CMD_ARG_ACCOUNT, mAccount);
 410         getActivity().startService(intent);
 411
 412         if (file.keepInSync()) {
 413             mContainerActivity.getFileOperationsHelper().syncFile(getFile());
 414         }
 415     }
 416
 417     private void showDialogToRemoveFile() {
 418         OCFile file = getFile();
 419         ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 420                 R.string.confirmation_remove_alert,
 421                 new String[]{file.getFileName()},
 422                 file.isDown() ? R.string.confirmation_remove_remote_and_local : R.string.confirmation_remove_remote,
 423                 file.isDown() ? R.string.confirmation_remove_local : -1,
 424                 R.string.common_cancel);
 425         confDialog.setOnConfirmationListener(this);
 426         confDialog.show(getFragmentManager(), FTAG_CONFIRMATION);
 427     }
 428
 429
 430     private void showDialogToRenameFile() {
 431         OCFile file = getFile();
 432         String fileName = file.getFileName();
 433         int extensionStart = file.isFolder() ? -1 : fileName.lastIndexOf(".");
 434         int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 435         EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 436         dialog.show(getFragmentManager(), "nameeditdialog");
 437     }
 438
 439
 440     @Override
 441     public void onConfirmation(String callerTag) {
 442         OCFile file = getFile();
 443         if (callerTag.equals(FTAG_CONFIRMATION)) {
 444             if (mContainerActivity.getStorageManager().getFileById(file.getFileId()) != null) {
 445                 mContainerActivity.getFileOperationsHelper().removeFile(file, true);
 446             }
 447         }
 448     }
 449
 450     @Override
 451     public void onNeutral(String callerTag) {
 452         OCFile file = getFile();
 453         mContainerActivity.getStorageManager().removeFile(file, false, true);    // TODO perform in background task / new thread
 454         if (file.getStoragePath() != null) {
 455             file.setStoragePath(null);
 456             updateFileDetails(file, mAccount);
 457         }
 458     }
 459
 460     @Override
 461     public void onCancel(String callerTag) {
 462         Log_OC.d(TAG, "REMOVAL CANCELED");
 463     }
 464
 465
 466     /**
 467      * Check if the fragment was created with an empty layout. An empty fragment can't show file details, must be replaced.
 468      *
 469      * @return  True when the fragment was created with the empty layout.
 470      */
 471     public boolean isEmpty() {
 472         return (mLayout == R.layout.file_details_empty || getFile() == null || mAccount == null);
 473     }
 474
 475
 476     /**
 477      * Use this method to signal this Activity that it shall update its view.
 478      *
 479      * @param file : An {@link OCFile}
 480      */
 481     public void updateFileDetails(OCFile file, Account ocAccount) {
 482         setFile(file);
 483         mAccount = ocAccount;
 484         updateFileDetails(false, false);
 485     }
 486
 487     /**
 488      * Updates the view with all relevant details about that file.
 489      *
 490      * TODO Remove parameter when the transferring state of files is kept in database.
 491      *
 492      * TODO REFACTORING! this method called 5 times before every time the fragment is shown!
 493      *
 494      * @param transferring      Flag signaling if the file should be considered as downloading or uploading,
 495      *                          although {@link FileDownloaderBinder#isDownloading(Account, OCFile)}  and
 496      *                          {@link FileUploaderBinder#isUploading(Account, OCFile)} return false.
 497      *
 498      * @param refresh           If 'true', try to refresh the whole file from the database
 499      */
 500     public void updateFileDetails(boolean transferring, boolean refresh) {
 501
 502         if (readyToShow()) {
 503             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 504             if (refresh && storageManager != null) {
 505                 setFile(storageManager.getFileByPath(getFile().getRemotePath()));
 506             }
 507             OCFile file = getFile();
 508
 509             // set file details
 510             setFilename(file.getFileName());
 511             setFiletype(file.getMimetype());
 512             setFilesize(file.getFileLength());
 513             if(ocVersionSupportsTimeCreated()){
 514                 setTimeCreated(file.getCreationTimestamp());
 515             }
 516
 517             setTimeModified(file.getModificationTimestamp());
 518
 519             CheckBox cb = (CheckBox)getView().findViewById(R.id.fdKeepInSync);
 520             cb.setChecked(file.keepInSync());
 521
 522             // configure UI for depending upon local state of the file
 523             FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 524             FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 525             if (transferring || (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) || (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file))) {
 526                 setButtonsForTransferring();
 527
 528             } else if (file.isDown()) {
 529
 530                 setButtonsForDown();
 531
 532             } else {
 533                 // TODO load default preview image; when the local file is removed, the preview remains there
 534                 setButtonsForRemote();
 535             }
 536         }
 537         getView().invalidate();
 538     }
 539
 540     /**
 541      * Checks if the fragment is ready to show details of a OCFile
 542      *
 543      * @return  'True' when the fragment is ready to show details of a file
 544      */
 545     private boolean readyToShow() {
 546         return (getFile() != null && mAccount != null && mLayout == R.layout.file_details_fragment);
 547     }
 548
 549
 550     /**
 551      * Updates the filename in view
 552      * @param filename to set
 553      */
 554     private void setFilename(String filename) {
 555         TextView tv = (TextView) getView().findViewById(R.id.fdFilename);
 556         if (tv != null)
 557             tv.setText(filename);
 558     }
 559
 560     /**
 561      * Updates the MIME type in view
 562      * @param mimetype to set
 563      */
 564     private void setFiletype(String mimetype) {
 565         TextView tv = (TextView) getView().findViewById(R.id.fdType);
 566         if (tv != null) {
 567             String printableMimetype = DisplayUtils.convertMIMEtoPrettyPrint(mimetype);;
 568             tv.setText(printableMimetype);
 569         }
 570         ImageView iv = (ImageView) getView().findViewById(R.id.fdIcon);
 571         if (iv != null) {
 572             iv.setImageResource(DisplayUtils.getResourceId(mimetype));
 573         }
 574     }
 575
 576     /**
 577      * Updates the file size in view
 578      * @param filesize in bytes to set
 579      */
 580     private void setFilesize(long filesize) {
 581         TextView tv = (TextView) getView().findViewById(R.id.fdSize);
 582         if (tv != null)
 583             tv.setText(DisplayUtils.bytesToHumanReadable(filesize));
 584     }
 585
 586     /**
 587      * Updates the time that the file was created in view
 588      * @param milliseconds Unix time to set
 589      */
 590     private void setTimeCreated(long milliseconds){
 591         TextView tv = (TextView) getView().findViewById(R.id.fdCreated);
 592         TextView tvLabel = (TextView) getView().findViewById(R.id.fdCreatedLabel);
 593         if(tv != null){
 594             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 595             tv.setVisibility(View.VISIBLE);
 596             tvLabel.setVisibility(View.VISIBLE);
 597         }
 598     }
 599
 600     /**
 601      * Updates the time that the file was last modified
 602      * @param milliseconds Unix time to set
 603      */
 604     private void setTimeModified(long milliseconds){
 605         TextView tv = (TextView) getView().findViewById(R.id.fdModified);
 606         if(tv != null){
 607             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 608         }
 609     }
 610
 611     /**
 612      * Enables or disables buttons for a file being downloaded
 613      */
 614     private void setButtonsForTransferring() {
 615         if (!isEmpty()) {
 616             // let's protect the user from himself ;)
 617             getView().findViewById(R.id.fdKeepInSync).setEnabled(false);
 618
 619             // show the progress bar for the transfer
 620             getView().findViewById(R.id.fdProgressBlock).setVisibility(View.VISIBLE);
 621             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 622             progressText.setVisibility(View.VISIBLE);
 623             FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 624             FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 625             if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, getFile())) {
 626                 progressText.setText(R.string.downloader_download_in_progress_ticker);
 627             } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, getFile())) {
 628                 progressText.setText(R.string.uploader_upload_in_progress_ticker);
 629             }
 630         }
 631     }
 632
 633     /**
 634      * Enables or disables buttons for a file locally available
 635      */
 636     private void setButtonsForDown() {
 637         if (!isEmpty()) {
 638             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 639
 640             // hides the progress bar
 641             getView().findViewById(R.id.fdProgressBlock).setVisibility(View.GONE);
 642             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 643             progressText.setVisibility(View.GONE);
 644         }
 645     }
 646
 647     /**
 648      * Enables or disables buttons for a file not locally available
 649      */
 650     private void setButtonsForRemote() {
 651         if (!isEmpty()) {
 652             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 653
 654             // hides the progress bar
 655             getView().findViewById(R.id.fdProgressBlock).setVisibility(View.GONE);
 656             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 657             progressText.setVisibility(View.GONE);
 658         }
 659     }
 660
 661
 662     /**
 663      * In ownCloud 3.X.X and 4.X.X there is a bug that SabreDAV does not return
 664      * the time that the file was created. There is a chance that this will
 665      * be fixed in future versions. Use this method to check if this version of
 666      * ownCloud has this fix.
 667      * @return True, if ownCloud the ownCloud version is supporting creation time
 668      */
 669     private boolean ocVersionSupportsTimeCreated(){
 670         /*if(mAccount != null){
 671             AccountManager accManager = (AccountManager) getActivity().getSystemService(Context.ACCOUNT_SERVICE);
 672             OwnCloudVersion ocVersion = new OwnCloudVersion(accManager
 673                     .getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 674             if(ocVersion.compareTo(new OwnCloudVersion(0x030000)) < 0) {
 675                 return true;
 676             }
 677         }*/
 678         return false;
 679     }
 680
 681
 682     /**
 683      * Once the file upload has finished -> update view
 684      *
 685      * Being notified about the finish of an upload is necessary for the next sequence:
 686      *   1. Upload a big file.
 687      *   2. Force a synchronization; if it finished before the upload, the file in transfer will be included in the local database and in the file list
 688      *      of its containing folder; the the server includes it in the PROPFIND requests although it's not fully upload.
 689      *   3. Click the file in the list to see its details.
 690      *   4. Wait for the upload finishes; at this moment, the details view must be refreshed to enable the action buttons.
 691      */
 692     private class UploadFinishReceiver extends BroadcastReceiver {
 693         @Override
 694         public void onReceive(Context context, Intent intent) {
 695             String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
 696
 697             if (!isEmpty() && accountName.equals(mAccount.name)) {
 698                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
 699                 String uploadRemotePath = intent.getStringExtra(FileUploader.EXTRA_REMOTE_PATH);
 700                 boolean renamedInUpload = getFile().getRemotePath().equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
 701                 if (getFile().getRemotePath().equals(uploadRemotePath) ||
 702                     renamedInUpload) {
 703                     if (uploadWasFine) {
 704                         setFile(mContainerActivity.getStorageManager().getFileByPath(uploadRemotePath));
 705                     }
 706                     if (renamedInUpload) {
 707                         String newName = (new File(uploadRemotePath)).getName();
 708                         Toast msg = Toast.makeText(getActivity().getApplicationContext(), String.format(getString(R.string.filedetails_renamed_in_upload_msg), newName), Toast.LENGTH_LONG);
 709                         msg.show();
 710                     }
 711                     getSherlockActivity().removeStickyBroadcast(intent);    // not the best place to do this; a small refactorization of BroadcastReceivers should be done
 712
 713                     updateFileDetails(false, false);    // it updates the buttons; must be called although !uploadWasFine; interrupted uploads still leave an incomplete file in the server
 714
 715                     // Force the preview if the file is an image
 716                     if (uploadWasFine && PreviewImageFragment.canBePreviewed(getFile())) {
 717                         ((FileDisplayActivity)mContainerActivity).startImagePreview(getFile());
 718                     }
 719                 }
 720             }
 721         }
 722     }
 723
 724
 725     public void onDismiss(EditNameDialog dialog) {
 726         if (dialog.getResult()) {
 727             String newFilename = dialog.getNewFilename();
 728             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 729             mContainerActivity.getFileOperationsHelper().renameFile(getFile(), newFilename);
 730         }
 731     }
 732
 733
 734     public void listenForTransferProgress() {
 735         if (mProgressListener != null) {
 736             if (mContainerActivity.getFileDownloaderBinder() != null) {
 737                 mContainerActivity.getFileDownloaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, getFile());
 738             }
 739             if (mContainerActivity.getFileUploaderBinder() != null) {
 740                 mContainerActivity.getFileUploaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, getFile());
 741             }
 742         }
 743     }
 744
 745
 746     public void leaveTransferProgress() {
 747         if (mProgressListener != null) {
 748             if (mContainerActivity.getFileDownloaderBinder() != null) {
 749                 mContainerActivity.getFileDownloaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, getFile());
 750             }
 751             if (mContainerActivity.getFileUploaderBinder() != null) {
 752                 mContainerActivity.getFileUploaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, getFile());
 753             }
 754         }
 755     }
 756
 757
 758
 759     /**
 760      * Helper class responsible for updating the progress bar shown for file uploading or downloading
 761      *
 762      * @author David A. Velasco
 763      */
 764     private class ProgressListener implements OnDatatransferProgressListener {
 765         int mLastPercent = 0;
 766         WeakReference<ProgressBar> mProgressBar = null;
 767
 768         ProgressListener(ProgressBar progressBar) {
 769             mProgressBar = new WeakReference<ProgressBar>(progressBar);
 770         }
 771
 772         @Override
 773         public void onTransferProgress(long progressRate, long totalTransferredSoFar, long totalToTransfer, String filename) {
 774             int percent = (int)(100.0*((double)totalTransferredSoFar)/((double)totalToTransfer));
 775             if (percent != mLastPercent) {
 776                 ProgressBar pb = mProgressBar.get();
 777                 if (pb != null) {
 778                     pb.setProgress(percent);
 779                     pb.postInvalidate();
 780                 }
 781             }
 782             mLastPercent = percent;
 783         }
 784
 785     };
 786
 787 }