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.app.Activity;
  27 import android.content.BroadcastReceiver;
  28 import android.content.Context;
  29 import android.content.Intent;
  30 import android.content.IntentFilter;
  31 import android.os.Bundle;
  32 import android.os.Handler;
  33 import android.view.LayoutInflater;
  34 import android.view.View;
  35 import android.view.View.OnClickListener;
  36 import android.view.ViewGroup;
  37 import android.widget.CheckBox;
  38 import android.widget.ImageView;
  39 import android.widget.ProgressBar;
  40 import android.widget.TextView;
  41 import android.widget.Toast;
  42
  43 import com.actionbarsherlock.view.Menu;
  44 import com.actionbarsherlock.view.MenuInflater;
  45 import com.actionbarsherlock.view.MenuItem;
  46 import com.owncloud.android.R;
  47 import com.owncloud.android.datamodel.FileDataStorageManager;
  48 import com.owncloud.android.datamodel.OCFile;
  49 import com.owncloud.android.files.services.FileObserverService;
  50 import com.owncloud.android.files.services.FileUploader;
  51 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  52 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  53 import com.owncloud.android.oc_framework.network.webdav.OnDatatransferProgressListener;
  54 import com.owncloud.android.oc_framework.operations.OnRemoteOperationListener;
  55 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  56 import com.owncloud.android.oc_framework.operations.RemoteOperationResult;
  57 import com.owncloud.android.oc_framework.operations.RemoteOperationResult.ResultCode;
  58 import com.owncloud.android.operations.RemoveFileOperation;
  59 import com.owncloud.android.operations.RenameFileOperation;
  60 import com.owncloud.android.operations.SynchronizeFileOperation;
  61 import com.owncloud.android.ui.activity.ConflictsResolveActivity;
  62 import com.owncloud.android.ui.activity.FileActivity;
  63 import com.owncloud.android.ui.activity.FileDisplayActivity;
  64 import com.owncloud.android.ui.dialog.EditNameDialog;
  65 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  66 import com.owncloud.android.ui.preview.PreviewImageFragment;
  67 import com.owncloud.android.utils.DisplayUtils;
  68 import com.owncloud.android.utils.Log_OC;
  69
  70
  71 /**
  72  * This Fragment is used to display the details about a file.
  73  *
  74  * @author Bartek Przybylski
  75  * @author David A. Velasco
  76  */
  77 public class FileDetailFragment extends FileFragment implements
  78         OnClickListener,
  79         ConfirmationDialogFragment.ConfirmationDialogFragmentListener, OnRemoteOperationListener, EditNameDialogListener {
  80
  81     private FileFragment.ContainerActivity mContainerActivity;
  82
  83     private int mLayout;
  84     private View mView;
  85     private Account mAccount;
  86     private FileDataStorageManager mStorageManager;
  87
  88     private UploadFinishReceiver mUploadFinishReceiver;
  89     public ProgressListener mProgressListener;
  90
  91     private Handler mHandler;
  92     private RemoteOperation mLastRemoteOperation;
  93
  94     private static final String TAG = FileDetailFragment.class.getSimpleName();
  95     public static final String FTAG_CONFIRMATION = "REMOVE_CONFIRMATION_FRAGMENT";
  96
  97
  98     /**
  99      * Creates an empty details fragment.
 100      *
 101      * It's necessary to keep a public constructor without parameters; the system uses it when tries to reinstantiate a fragment automatically.
 102      */
 103     public FileDetailFragment() {
 104         super();
 105         mAccount = null;
 106         mStorageManager = null;
 107         mLayout = R.layout.file_details_empty;
 108         mProgressListener = null;
 109     }
 110
 111     /**
 112      * Creates a details fragment.
 113      *
 114      * When 'fileToDetail' or 'ocAccount' are null, creates a dummy layout (to use when a file wasn't tapped before).
 115      *
 116      * @param fileToDetail      An {@link OCFile} to show in the fragment
 117      * @param ocAccount         An ownCloud account; needed to start downloads
 118      */
 119     public FileDetailFragment(OCFile fileToDetail, Account ocAccount) {
 120         super(fileToDetail);
 121         mAccount = ocAccount;
 122         mStorageManager = null; // we need a context to init this; the container activity is not available yet at this moment
 123         mLayout = R.layout.file_details_empty;
 124         mProgressListener = null;
 125     }
 126
 127
 128     @Override
 129     public void onCreate(Bundle savedInstanceState) {
 130         super.onCreate(savedInstanceState);
 131         mHandler = new Handler();
 132         setHasOptionsMenu(true);
 133     }
 134
 135
 136     @Override
 137     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 138             Bundle savedInstanceState) {
 139         //super.onCreateView(inflater, container, savedInstanceState);
 140
 141         if (savedInstanceState != null) {
 142             setFile((OCFile)savedInstanceState.getParcelable(FileActivity.EXTRA_FILE));
 143             mAccount = savedInstanceState.getParcelable(FileActivity.EXTRA_ACCOUNT);
 144         }
 145
 146         if(getFile() != null && mAccount != null) {
 147             mLayout = R.layout.file_details_fragment;
 148         }
 149
 150         View view = null;
 151         //view = inflater.inflate(mLayout, container, false);
 152         view = inflater.inflate(mLayout, null);
 153         mView = view;
 154
 155         if (mLayout == R.layout.file_details_fragment) {
 156             mView.findViewById(R.id.fdKeepInSync).setOnClickListener(this);
 157             ProgressBar progressBar = (ProgressBar)mView.findViewById(R.id.fdProgressBar);
 158             mProgressListener = new ProgressListener(progressBar);
 159             mView.findViewById(R.id.fdCancelBtn).setOnClickListener(this);
 160         }
 161
 162         updateFileDetails(false, false);
 163         return view;
 164     }
 165
 166     /**
 167      * {@inheritDoc}
 168      */
 169     @Override
 170     public void onAttach(Activity activity) {
 171         super.onAttach(activity);
 172         try {
 173             mContainerActivity = (ContainerActivity) activity;
 174
 175         } catch (ClassCastException e) {
 176             throw new ClassCastException(activity.toString() + " must implement " + FileDetailFragment.ContainerActivity.class.getSimpleName());
 177         }
 178     }
 179
 180
 181     /**
 182      * {@inheritDoc}
 183      */
 184     @Override
 185     public void onActivityCreated(Bundle savedInstanceState) {
 186         super.onActivityCreated(savedInstanceState);
 187         if (mAccount != null) {
 188             mStorageManager = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());
 189         }
 190     }
 191
 192
 193     @Override
 194     public void onSaveInstanceState(Bundle outState) {
 195         super.onSaveInstanceState(outState);
 196         outState.putParcelable(FileActivity.EXTRA_FILE, getFile());
 197         outState.putParcelable(FileActivity.EXTRA_ACCOUNT, mAccount);
 198     }
 199
 200     @Override
 201     public void onStart() {
 202         super.onStart();
 203         listenForTransferProgress();
 204     }
 205
 206     @Override
 207     public void onResume() {
 208         super.onResume();
 209         mUploadFinishReceiver = new UploadFinishReceiver();
 210         IntentFilter filter = new IntentFilter(FileUploader.getUploadFinishMessage());
 211         getActivity().registerReceiver(mUploadFinishReceiver, filter);
 212
 213     }
 214
 215
 216     @Override
 217     public void onPause() {
 218         super.onPause();
 219         if (mUploadFinishReceiver != null) {
 220             getActivity().unregisterReceiver(mUploadFinishReceiver);
 221             mUploadFinishReceiver = null;
 222         }
 223     }
 224
 225
 226     @Override
 227     public void onStop() {
 228         super.onStop();
 229         leaveTransferProgress();
 230     }
 231
 232
 233     @Override
 234     public View getView() {
 235         return super.getView() == null ? mView : super.getView();
 236     }
 237
 238
 239     /**
 240      * {@inheritDoc}
 241      */
 242     @Override
 243     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 244         super.onCreateOptionsMenu(menu, inflater);
 245         inflater.inflate(R.menu.file_actions_menu, menu);
 246         MenuItem item = menu.findItem(R.id.action_see_details);
 247         if (item != null) {
 248             item.setVisible(false);
 249             item.setEnabled(false);
 250         }
 251     }
 252
 253
 254     /**
 255      * {@inheritDoc}
 256      */
 257     @Override
 258     public void onPrepareOptionsMenu (Menu menu) {
 259         super.onPrepareOptionsMenu(menu);
 260
 261         List<Integer> toHide = new ArrayList<Integer>();
 262         List<Integer> toShow = new ArrayList<Integer>();
 263         OCFile file = getFile();
 264
 265         FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 266         boolean downloading = downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file);
 267         FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 268         boolean uploading = uploaderBinder != null && uploaderBinder.isUploading(mAccount, getFile());
 269
 270         if (downloading || uploading) {
 271             toHide.add(R.id.action_download_file);
 272             toHide.add(R.id.action_rename_file);
 273             toHide.add(R.id.action_remove_file);
 274             toHide.add(R.id.action_open_file_with);
 275             if (!downloading) {
 276                 toHide.add(R.id.action_cancel_download);
 277                 toShow.add(R.id.action_cancel_upload);
 278             } else {
 279                 toHide.add(R.id.action_cancel_upload);
 280                 toShow.add(R.id.action_cancel_download);
 281             }
 282
 283         } else if (file != null && file.isDown()) {
 284             toHide.add(R.id.action_download_file);
 285             toHide.add(R.id.action_cancel_download);
 286             toHide.add(R.id.action_cancel_upload);
 287
 288             toShow.add(R.id.action_rename_file);
 289             toShow.add(R.id.action_remove_file);
 290             toShow.add(R.id.action_open_file_with);
 291             toShow.add(R.id.action_sync_file);
 292
 293         } else if (file != null) {
 294             toHide.add(R.id.action_open_file_with);
 295             toHide.add(R.id.action_cancel_download);
 296             toHide.add(R.id.action_cancel_upload);
 297             toHide.add(R.id.action_sync_file);
 298
 299             toShow.add(R.id.action_rename_file);
 300             toShow.add(R.id.action_remove_file);
 301             toShow.add(R.id.action_download_file);
 302
 303         } else {
 304             toHide.add(R.id.action_open_file_with);
 305             toHide.add(R.id.action_cancel_download);
 306             toHide.add(R.id.action_cancel_upload);
 307             toHide.add(R.id.action_sync_file);
 308             toHide.add(R.id.action_download_file);
 309             toHide.add(R.id.action_rename_file);
 310             toHide.add(R.id.action_remove_file);
 311
 312         }
 313
 314         MenuItem item = null;
 315         for (int i : toHide) {
 316             item = menu.findItem(i);
 317             if (item != null) {
 318                 item.setVisible(false);
 319                 item.setEnabled(false);
 320             }
 321         }
 322         for (int i : toShow) {
 323             item = menu.findItem(i);
 324             if (item != null) {
 325                 item.setVisible(true);
 326                 item.setEnabled(true);
 327             }
 328         }
 329     }
 330
 331
 332     /**
 333      * {@inheritDoc}
 334      */
 335     @Override
 336     public boolean onOptionsItemSelected(MenuItem item) {
 337         switch (item.getItemId()) {
 338             case R.id.action_open_file_with: {
 339                 mContainerActivity.openFile(getFile());
 340                 return true;
 341             }
 342             case R.id.action_remove_file: {
 343                 removeFile();
 344                 return true;
 345             }
 346             case R.id.action_rename_file: {
 347                 renameFile();
 348                 return true;
 349             }
 350             case R.id.action_download_file:
 351             case R.id.action_cancel_download:
 352             case R.id.action_cancel_upload:
 353             case R.id.action_sync_file: {
 354                 synchronizeFile();
 355                 return true;
 356             }
 357             default:
 358                 return false;
 359         }
 360     }
 361
 362     @Override
 363     public void onClick(View v) {
 364         switch (v.getId()) {
 365             case R.id.fdKeepInSync: {
 366                 toggleKeepInSync();
 367                 break;
 368             }
 369             case R.id.fdCancelBtn: {
 370                 synchronizeFile();
 371                 break;
 372             }
 373             default:
 374                 Log_OC.e(TAG, "Incorrect view clicked!");
 375         }
 376     }
 377
 378
 379     private void toggleKeepInSync() {
 380         CheckBox cb = (CheckBox) getView().findViewById(R.id.fdKeepInSync);
 381         OCFile file = getFile();
 382         file.setKeepInSync(cb.isChecked());
 383         mStorageManager.saveFile(file);
 384
 385         /// register the OCFile instance in the observer service to monitor local updates;
 386         /// if necessary, the file is download
 387         Intent intent = new Intent(getActivity().getApplicationContext(),
 388                                    FileObserverService.class);
 389         intent.putExtra(FileObserverService.KEY_FILE_CMD,
 390                    (cb.isChecked()?
 391                            FileObserverService.CMD_ADD_OBSERVED_FILE:
 392                            FileObserverService.CMD_DEL_OBSERVED_FILE));
 393         intent.putExtra(FileObserverService.KEY_CMD_ARG_FILE, file);
 394         intent.putExtra(FileObserverService.KEY_CMD_ARG_ACCOUNT, mAccount);
 395         getActivity().startService(intent);
 396
 397         if (file.keepInSync()) {
 398             synchronizeFile();   // force an immediate synchronization
 399         }
 400     }
 401
 402
 403     private void removeFile() {
 404         OCFile file = getFile();
 405         ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 406                 R.string.confirmation_remove_alert,
 407                 new String[]{file.getFileName()},
 408                 file.isDown() ? R.string.confirmation_remove_remote_and_local : R.string.confirmation_remove_remote,
 409                 file.isDown() ? R.string.confirmation_remove_local : -1,
 410                 R.string.common_cancel);
 411         confDialog.setOnConfirmationListener(this);
 412         confDialog.show(getFragmentManager(), FTAG_CONFIRMATION);
 413     }
 414
 415
 416     private void renameFile() {
 417         OCFile file = getFile();
 418         String fileName = file.getFileName();
 419         int extensionStart = file.isFolder() ? -1 : fileName.lastIndexOf(".");
 420         int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 421         EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 422         dialog.show(getFragmentManager(), "nameeditdialog");
 423     }
 424
 425     private void synchronizeFile() {
 426         OCFile file = getFile();
 427         FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 428         FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 429         if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) {
 430             downloaderBinder.cancel(mAccount, file);
 431             if (file.isDown()) {
 432                 setButtonsForDown();
 433             } else {
 434                 setButtonsForRemote();
 435             }
 436
 437         } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file)) {
 438             uploaderBinder.cancel(mAccount, file);
 439             if (!file.fileExists()) {
 440                 // TODO make something better
 441                 ((FileDisplayActivity)getActivity()).cleanSecondFragment();
 442
 443             } else if (file.isDown()) {
 444                 setButtonsForDown();
 445             } else {
 446                 setButtonsForRemote();
 447             }
 448
 449         } else {
 450             mLastRemoteOperation = new SynchronizeFileOperation(file, null, mStorageManager, mAccount, true, getActivity());
 451             mLastRemoteOperation.execute(mAccount, getSherlockActivity(), this, mHandler, getSherlockActivity());
 452
 453             // update ui
 454             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 455
 456         }
 457     }
 458
 459     @Override
 460     public void onConfirmation(String callerTag) {
 461         OCFile file = getFile();
 462         if (callerTag.equals(FTAG_CONFIRMATION)) {
 463             if (mStorageManager.getFileById(file.getFileId()) != null) {
 464                 mLastRemoteOperation = new RemoveFileOperation( file,
 465                                                                 true,
 466                                                                 mStorageManager);
 467                 mLastRemoteOperation.execute(mAccount, getSherlockActivity(), this, mHandler, getSherlockActivity());
 468
 469                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 470             }
 471         }
 472     }
 473
 474     @Override
 475     public void onNeutral(String callerTag) {
 476         File f = null;
 477         OCFile file = getFile();
 478         if (file.isDown() && (f = new File(file.getStoragePath())).exists()) {
 479             f.delete();
 480             file.setStoragePath(null);
 481             mStorageManager.saveFile(file);
 482             updateFileDetails(file, mAccount);
 483         }
 484     }
 485
 486     @Override
 487     public void onCancel(String callerTag) {
 488         Log_OC.d(TAG, "REMOVAL CANCELED");
 489     }
 490
 491
 492     /**
 493      * Check if the fragment was created with an empty layout. An empty fragment can't show file details, must be replaced.
 494      *
 495      * @return  True when the fragment was created with the empty layout.
 496      */
 497     public boolean isEmpty() {
 498         return (mLayout == R.layout.file_details_empty || getFile() == null || mAccount == null);
 499     }
 500
 501
 502     /**
 503      * Use this method to signal this Activity that it shall update its view.
 504      *
 505      * @param file : An {@link OCFile}
 506      */
 507     public void updateFileDetails(OCFile file, Account ocAccount) {
 508         setFile(file);
 509         if (ocAccount != null && (
 510                 mStorageManager == null ||
 511                 (mAccount != null && !mAccount.equals(ocAccount))
 512            )) {
 513             mStorageManager = new FileDataStorageManager(ocAccount, getActivity().getApplicationContext().getContentResolver());
 514         }
 515         mAccount = ocAccount;
 516         updateFileDetails(false, false);
 517     }
 518
 519     /**
 520      * Updates the view with all relevant details about that file.
 521      *
 522      * TODO Remove parameter when the transferring state of files is kept in database.
 523      *
 524      * TODO REFACTORING! this method called 5 times before every time the fragment is shown!
 525      *
 526      * @param transferring      Flag signaling if the file should be considered as downloading or uploading,
 527      *                          although {@link FileDownloaderBinder#isDownloading(Account, OCFile)}  and
 528      *                          {@link FileUploaderBinder#isUploading(Account, OCFile)} return false.
 529      *
 530      * @param refresh           If 'true', try to refresh the hold file from the database
 531      */
 532     public void updateFileDetails(boolean transferring, boolean refresh) {
 533
 534         if (readyToShow()) {
 535
 536             if (refresh && mStorageManager != null) {
 537                 setFile(mStorageManager.getFileByPath(getFile().getRemotePath()));
 538             }
 539             OCFile file = getFile();
 540
 541             // set file details
 542             setFilename(file.getFileName());
 543             setFiletype(file.getMimetype());
 544             setFilesize(file.getFileLength());
 545             if(ocVersionSupportsTimeCreated()){
 546                 setTimeCreated(file.getCreationTimestamp());
 547             }
 548
 549             setTimeModified(file.getModificationTimestamp());
 550
 551             CheckBox cb = (CheckBox)getView().findViewById(R.id.fdKeepInSync);
 552             cb.setChecked(file.keepInSync());
 553
 554             // configure UI for depending upon local state of the file
 555             //if (FileDownloader.isDownloading(mAccount, mFile.getRemotePath()) || FileUploader.isUploading(mAccount, mFile.getRemotePath())) {
 556             FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 557             FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 558             if (transferring || (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) || (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file))) {
 559                 setButtonsForTransferring();
 560
 561             } else if (file.isDown()) {
 562
 563                 setButtonsForDown();
 564
 565             } else {
 566                 // TODO load default preview image; when the local file is removed, the preview remains there
 567                 setButtonsForRemote();
 568             }
 569         }
 570         getView().invalidate();
 571     }
 572
 573     /**
 574      * Checks if the fragment is ready to show details of a OCFile
 575      *
 576      * @return  'True' when the fragment is ready to show details of a file
 577      */
 578     private boolean readyToShow() {
 579         return (getFile() != null && mAccount != null && mLayout == R.layout.file_details_fragment);
 580     }
 581
 582
 583     /**
 584      * Updates the filename in view
 585      * @param filename to set
 586      */
 587     private void setFilename(String filename) {
 588         TextView tv = (TextView) getView().findViewById(R.id.fdFilename);
 589         if (tv != null)
 590             tv.setText(filename);
 591     }
 592
 593     /**
 594      * Updates the MIME type in view
 595      * @param mimetype to set
 596      */
 597     private void setFiletype(String mimetype) {
 598         TextView tv = (TextView) getView().findViewById(R.id.fdType);
 599         if (tv != null) {
 600             String printableMimetype = DisplayUtils.convertMIMEtoPrettyPrint(mimetype);;
 601             tv.setText(printableMimetype);
 602         }
 603         ImageView iv = (ImageView) getView().findViewById(R.id.fdIcon);
 604         if (iv != null) {
 605             iv.setImageResource(DisplayUtils.getResourceId(mimetype));
 606         }
 607     }
 608
 609     /**
 610      * Updates the file size in view
 611      * @param filesize in bytes to set
 612      */
 613     private void setFilesize(long filesize) {
 614         TextView tv = (TextView) getView().findViewById(R.id.fdSize);
 615         if (tv != null)
 616             tv.setText(DisplayUtils.bytesToHumanReadable(filesize));
 617     }
 618
 619     /**
 620      * Updates the time that the file was created in view
 621      * @param milliseconds Unix time to set
 622      */
 623     private void setTimeCreated(long milliseconds){
 624         TextView tv = (TextView) getView().findViewById(R.id.fdCreated);
 625         TextView tvLabel = (TextView) getView().findViewById(R.id.fdCreatedLabel);
 626         if(tv != null){
 627             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 628             tv.setVisibility(View.VISIBLE);
 629             tvLabel.setVisibility(View.VISIBLE);
 630         }
 631     }
 632
 633     /**
 634      * Updates the time that the file was last modified
 635      * @param milliseconds Unix time to set
 636      */
 637     private void setTimeModified(long milliseconds){
 638         TextView tv = (TextView) getView().findViewById(R.id.fdModified);
 639         if(tv != null){
 640             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 641         }
 642     }
 643
 644     /**
 645      * Enables or disables buttons for a file being downloaded
 646      */
 647     private void setButtonsForTransferring() {
 648         if (!isEmpty()) {
 649             // let's protect the user from himself ;)
 650             getView().findViewById(R.id.fdKeepInSync).setEnabled(false);
 651
 652             // show the progress bar for the transfer
 653             getView().findViewById(R.id.fdProgressBlock).setVisibility(View.VISIBLE);
 654             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 655             progressText.setVisibility(View.VISIBLE);
 656             FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 657             FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 658             if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, getFile())) {
 659                 progressText.setText(R.string.downloader_download_in_progress_ticker);
 660             } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, getFile())) {
 661                 progressText.setText(R.string.uploader_upload_in_progress_ticker);
 662             }
 663         }
 664     }
 665
 666     /**
 667      * Enables or disables buttons for a file locally available
 668      */
 669     private void setButtonsForDown() {
 670         if (!isEmpty()) {
 671             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 672
 673             // hides the progress bar
 674             getView().findViewById(R.id.fdProgressBlock).setVisibility(View.GONE);
 675             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 676             progressText.setVisibility(View.GONE);
 677         }
 678     }
 679
 680     /**
 681      * Enables or disables buttons for a file not locally available
 682      */
 683     private void setButtonsForRemote() {
 684         if (!isEmpty()) {
 685             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 686
 687             // hides the progress bar
 688             getView().findViewById(R.id.fdProgressBlock).setVisibility(View.GONE);
 689             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 690             progressText.setVisibility(View.GONE);
 691         }
 692     }
 693
 694
 695     /**
 696      * In ownCloud 3.X.X and 4.X.X there is a bug that SabreDAV does not return
 697      * the time that the file was created. There is a chance that this will
 698      * be fixed in future versions. Use this method to check if this version of
 699      * ownCloud has this fix.
 700      * @return True, if ownCloud the ownCloud version is supporting creation time
 701      */
 702     private boolean ocVersionSupportsTimeCreated(){
 703         /*if(mAccount != null){
 704             AccountManager accManager = (AccountManager) getActivity().getSystemService(Context.ACCOUNT_SERVICE);
 705             OwnCloudVersion ocVersion = new OwnCloudVersion(accManager
 706                     .getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 707             if(ocVersion.compareTo(new OwnCloudVersion(0x030000)) < 0) {
 708                 return true;
 709             }
 710         }*/
 711         return false;
 712     }
 713
 714
 715     /**
 716      * Once the file upload has finished -> update view
 717      *
 718      * Being notified about the finish of an upload is necessary for the next sequence:
 719      *   1. Upload a big file.
 720      *   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
 721      *      of its containing folder; the the server includes it in the PROPFIND requests although it's not fully upload.
 722      *   3. Click the file in the list to see its details.
 723      *   4. Wait for the upload finishes; at this moment, the details view must be refreshed to enable the action buttons.
 724      */
 725     private class UploadFinishReceiver extends BroadcastReceiver {
 726         @Override
 727         public void onReceive(Context context, Intent intent) {
 728             String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
 729
 730             if (!isEmpty() && accountName.equals(mAccount.name)) {
 731                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
 732                 String uploadRemotePath = intent.getStringExtra(FileUploader.EXTRA_REMOTE_PATH);
 733                 boolean renamedInUpload = getFile().getRemotePath().equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
 734                 if (getFile().getRemotePath().equals(uploadRemotePath) ||
 735                     renamedInUpload) {
 736                     if (uploadWasFine) {
 737                         setFile(mStorageManager.getFileByPath(uploadRemotePath));
 738                     }
 739                     if (renamedInUpload) {
 740                         String newName = (new File(uploadRemotePath)).getName();
 741                         Toast msg = Toast.makeText(getActivity().getApplicationContext(), String.format(getString(R.string.filedetails_renamed_in_upload_msg), newName), Toast.LENGTH_LONG);
 742                         msg.show();
 743                     }
 744                     getSherlockActivity().removeStickyBroadcast(intent);    // not the best place to do this; a small refactorization of BroadcastReceivers should be done
 745
 746                     updateFileDetails(false, false);    // it updates the buttons; must be called although !uploadWasFine; interrupted uploads still leave an incomplete file in the server
 747
 748                     // Force the preview if the file is an image
 749                     if (uploadWasFine && PreviewImageFragment.canBePreviewed(getFile())) {
 750                         ((FileDisplayActivity) mContainerActivity).startImagePreview(getFile());
 751                     }
 752                 }
 753             }
 754         }
 755     }
 756
 757
 758     public void onDismiss(EditNameDialog dialog) {
 759         if (dialog.getResult()) {
 760             String newFilename = dialog.getNewFilename();
 761             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 762             mLastRemoteOperation = new RenameFileOperation( getFile(),
 763                                                             mAccount,
 764                                                             newFilename,
 765                                                             new FileDataStorageManager(mAccount, getActivity().getContentResolver()));
 766             mLastRemoteOperation.execute(mAccount, getSherlockActivity(), this, mHandler, getSherlockActivity());
 767             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 768         }
 769     }
 770
 771
 772     /**
 773      * {@inheritDoc}
 774      */
 775     @Override
 776     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 777         if (operation.equals(mLastRemoteOperation)) {
 778             if (operation instanceof RemoveFileOperation) {
 779                 onRemoveFileOperationFinish((RemoveFileOperation)operation, result);
 780
 781             } else if (operation instanceof RenameFileOperation) {
 782                 onRenameFileOperationFinish((RenameFileOperation)operation, result);
 783
 784             } else if (operation instanceof SynchronizeFileOperation) {
 785                 onSynchronizeFileOperationFinish((SynchronizeFileOperation)operation, result);
 786             }
 787         }
 788     }
 789
 790
 791     private void onRemoveFileOperationFinish(RemoveFileOperation operation, RemoteOperationResult result) {
 792         ((FileDisplayActivity) getActivity()).dismissLoadingDialog();
 793         if (result.isSuccess()) {
 794             Toast msg = Toast.makeText(getActivity().getApplicationContext(), R.string.remove_success_msg, Toast.LENGTH_LONG);
 795             msg.show();
 796             ((FileDisplayActivity)getActivity()).cleanSecondFragment();
 797
 798         } else {
 799             Toast msg = Toast.makeText(getActivity(), R.string.remove_fail_msg, Toast.LENGTH_LONG);
 800             msg.show();
 801             if (result.isSslRecoverableException()) {
 802                 // TODO show the SSL warning dialog
 803             }
 804         }
 805     }
 806
 807     private void onRenameFileOperationFinish(RenameFileOperation operation, RemoteOperationResult result) {
 808         ((FileDisplayActivity) getActivity()).dismissLoadingDialog();
 809
 810         if (result.isSuccess()) {
 811             updateFileDetails(((RenameFileOperation)operation).getFile(), mAccount);
 812             mContainerActivity.onFileStateChanged();
 813
 814         } else {
 815             if (result.getCode().equals(ResultCode.INVALID_LOCAL_FILE_NAME)) {
 816                 Toast msg = Toast.makeText(getActivity(), R.string.rename_local_fail_msg, Toast.LENGTH_LONG);
 817                 msg.show();
 818                 // TODO throw again the new rename dialog
 819             } if (result.getCode().equals(ResultCode.INVALID_CHARACTER_IN_NAME)) {
 820                 Toast msg = Toast.makeText(getActivity(), R.string.filename_forbidden_characters, Toast.LENGTH_LONG);
 821                 msg.show();
 822             } else {
 823                 Toast msg = Toast.makeText(getActivity(), R.string.rename_server_fail_msg, Toast.LENGTH_LONG);
 824                 msg.show();
 825                 if (result.isSslRecoverableException()) {
 826                     // TODO show the SSL warning dialog
 827                 }
 828             }
 829         }
 830     }
 831
 832     private void onSynchronizeFileOperationFinish(SynchronizeFileOperation operation, RemoteOperationResult result) {
 833         ((FileDisplayActivity) getActivity()).dismissLoadingDialog();
 834         OCFile file = getFile();
 835         if (!result.isSuccess()) {
 836             if (result.getCode() == ResultCode.SYNC_CONFLICT) {
 837                 Intent i = new Intent(getActivity(), ConflictsResolveActivity.class);
 838                 i.putExtra(ConflictsResolveActivity.EXTRA_FILE, file);
 839                 i.putExtra(ConflictsResolveActivity.EXTRA_ACCOUNT, mAccount);
 840                 startActivity(i);
 841
 842             }
 843
 844             if (file.isDown()) {
 845                 setButtonsForDown();
 846
 847             } else {
 848                 setButtonsForRemote();
 849             }
 850
 851         } else {
 852             if (operation.transferWasRequested()) {
 853                 setButtonsForTransferring();
 854                 mContainerActivity.onFileStateChanged();    // this is not working; FileDownloader won't do NOTHING at all until this method finishes, so
 855                                                             // checking the service to see if the file is downloading results in FALSE
 856             } else {
 857                 Toast msg = Toast.makeText(getActivity(), R.string.sync_file_nothing_to_do_msg, Toast.LENGTH_LONG);
 858                 msg.show();
 859                 if (file.isDown()) {
 860                     setButtonsForDown();
 861
 862                 } else {
 863                     setButtonsForRemote();
 864                 }
 865             }
 866         }
 867     }
 868
 869
 870     public void listenForTransferProgress() {
 871         if (mProgressListener != null) {
 872             if (mContainerActivity.getFileDownloaderBinder() != null) {
 873                 mContainerActivity.getFileDownloaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, getFile());
 874             }
 875             if (mContainerActivity.getFileUploaderBinder() != null) {
 876                 mContainerActivity.getFileUploaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, getFile());
 877             }
 878         }
 879     }
 880
 881
 882     public void leaveTransferProgress() {
 883         if (mProgressListener != null) {
 884             if (mContainerActivity.getFileDownloaderBinder() != null) {
 885                 mContainerActivity.getFileDownloaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, getFile());
 886             }
 887             if (mContainerActivity.getFileUploaderBinder() != null) {
 888                 mContainerActivity.getFileUploaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, getFile());
 889             }
 890         }
 891     }
 892
 893
 894
 895     /**
 896      * Helper class responsible for updating the progress bar shown for file uploading or downloading
 897      *
 898      * @author David A. Velasco
 899      */
 900     private class ProgressListener implements OnDatatransferProgressListener {
 901         int mLastPercent = 0;
 902         WeakReference<ProgressBar> mProgressBar = null;
 903
 904         ProgressListener(ProgressBar progressBar) {
 905             mProgressBar = new WeakReference<ProgressBar>(progressBar);
 906         }
 907
 908         @Override
 909         public void onTransferProgress(long progressRate) {
 910             // old method, nothing here
 911         };
 912
 913         @Override
 914         public void onTransferProgress(long progressRate, long totalTransferredSoFar, long totalToTransfer, String filename) {
 915             int percent = (int)(100.0*((double)totalTransferredSoFar)/((double)totalToTransfer));
 916             if (percent != mLastPercent) {
 917                 ProgressBar pb = mProgressBar.get();
 918                 if (pb != null) {
 919                     pb.setProgress(percent);
 920                     pb.postInvalidate();
 921                 }
 922             }
 923             mLastPercent = percent;
 924         }
 925
 926     };
 927
 928 }