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