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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   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 org.apache.commons.httpclient.methods.GetMethod;
  26 import org.apache.commons.httpclient.methods.PostMethod;
  27 import org.apache.commons.httpclient.methods.StringRequestEntity;
  28 import org.apache.commons.httpclient.params.HttpConnectionManagerParams;
  29 import org.apache.http.HttpStatus;
  30 import org.apache.http.NameValuePair;
  31 import org.apache.http.client.utils.URLEncodedUtils;
  32 import org.apache.http.entity.FileEntity;
  33 import org.apache.http.message.BasicNameValuePair;
  34 import org.apache.http.protocol.HTTP;
  35 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
  36 import org.json.JSONObject;
  37
  38 import android.accounts.Account;
  39 import android.accounts.AccountManager;
  40 import android.annotation.SuppressLint;
  41 import android.app.Activity;
  42 import android.content.ActivityNotFoundException;
  43 import android.content.BroadcastReceiver;
  44 import android.content.ComponentName;
  45 import android.content.Context;
  46 import android.content.Intent;
  47 import android.content.IntentFilter;
  48 import android.content.ServiceConnection;
  49 import android.graphics.Bitmap;
  50 import android.graphics.BitmapFactory;
  51 import android.graphics.BitmapFactory.Options;
  52 import android.graphics.Point;
  53 import android.net.Uri;
  54 import android.os.AsyncTask;
  55 import android.os.Bundle;
  56 import android.os.Handler;
  57 import android.os.IBinder;
  58 import android.support.v4.app.DialogFragment;
  59 import android.support.v4.app.FragmentTransaction;
  60 import android.util.Log;
  61 import android.view.Display;
  62 import android.view.LayoutInflater;
  63 import android.view.MotionEvent;
  64 import android.view.View;
  65 import android.view.View.OnClickListener;
  66 import android.view.View.OnTouchListener;
  67 import android.view.ViewGroup;
  68 import android.webkit.MimeTypeMap;
  69 import android.webkit.WebView.FindListener;
  70 import android.widget.Button;
  71 import android.widget.CheckBox;
  72 import android.widget.ImageView;
  73 import android.widget.MediaController;
  74 import android.widget.ProgressBar;
  75 import android.widget.TextView;
  76 import android.widget.Toast;
  77 import android.widget.VideoView;
  78
  79 import com.actionbarsherlock.app.SherlockFragment;
  80 import com.owncloud.android.AccountUtils;
  81 import com.owncloud.android.DisplayUtils;
  82 import com.owncloud.android.authenticator.AccountAuthenticator;
  83 import com.owncloud.android.datamodel.FileDataStorageManager;
  84 import com.owncloud.android.datamodel.OCFile;
  85 import com.owncloud.android.files.services.FileDownloader;
  86 import com.owncloud.android.files.services.FileObserverService;
  87 import com.owncloud.android.files.services.FileUploader;
  88 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  89 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  90 import com.owncloud.android.media.MediaService;
  91 import com.owncloud.android.media.MediaServiceBinder;
  92 import com.owncloud.android.network.OwnCloudClientUtils;
  93 import com.owncloud.android.operations.OnRemoteOperationListener;
  94 import com.owncloud.android.operations.RemoteOperation;
  95 import com.owncloud.android.operations.RemoteOperationResult;
  96 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  97 import com.owncloud.android.operations.RemoveFileOperation;
  98 import com.owncloud.android.operations.RenameFileOperation;
  99 import com.owncloud.android.operations.SynchronizeFileOperation;
 100 import com.owncloud.android.ui.activity.ConflictsResolveActivity;
 101 import com.owncloud.android.ui.activity.FileDetailActivity;
 102 import com.owncloud.android.ui.activity.FileDisplayActivity;
 103 import com.owncloud.android.ui.OnSwipeTouchListener;
 104 import com.owncloud.android.ui.activity.TransferServiceGetter;
 105 import com.owncloud.android.ui.activity.PreviewVideoActivity;
 106 import com.owncloud.android.ui.dialog.EditNameDialog;
 107 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
 108 import com.owncloud.android.utils.OwnCloudVersion;
 109
 110 import com.owncloud.android.R;
 111
 112 import eu.alefzero.webdav.OnDatatransferProgressListener;
 113 import eu.alefzero.webdav.WebdavClient;
 114 import eu.alefzero.webdav.WebdavUtils;
 115
 116 /**
 117  * This Fragment is used to display the details about a file.
 118  *
 119  * @author Bartek Przybylski
 120  * @author David A. Velasco
 121  */
 122 public class FileDetailFragment extends SherlockFragment implements
 123         OnClickListener,
 124         ConfirmationDialogFragment.ConfirmationDialogFragmentListener, OnRemoteOperationListener, EditNameDialogListener,
 125         FileFragment {
 126
 127     public static final String EXTRA_FILE = "FILE";
 128     public static final String EXTRA_ACCOUNT = "ACCOUNT";
 129
 130     private FileFragment.ContainerActivity mContainerActivity;
 131
 132     private int mLayout;
 133     private View mView;
 134     private OCFile mFile;
 135     private Account mAccount;
 136     private FileDataStorageManager mStorageManager;
 137
 138     private DownloadFinishReceiver mDownloadFinishReceiver;
 139     private UploadFinishReceiver mUploadFinishReceiver;
 140     public ProgressListener mProgressListener;
 141
 142     private Handler mHandler;
 143     private RemoteOperation mLastRemoteOperation;
 144
 145     private MediaServiceBinder mMediaServiceBinder = null;
 146     private MediaController mMediaController = null;
 147     private MediaServiceConnection mMediaServiceConnection = null;
 148
 149     private static final String TAG = FileDetailFragment.class.getSimpleName();
 150     public static final String FTAG = "FileDetails";
 151     public static final String FTAG_CONFIRMATION = "REMOVE_CONFIRMATION_FRAGMENT";
 152
 153
 154     /**
 155      * Creates an empty details fragment.
 156      *
 157      * It's necessary to keep a public constructor without parameters; the system uses it when tries to reinstantiate a fragment automatically.
 158      */
 159     public FileDetailFragment() {
 160         mFile = null;
 161         mAccount = null;
 162         mStorageManager = null;
 163         mLayout = R.layout.file_details_empty;
 164         mProgressListener = null;
 165     }
 166
 167
 168     /**
 169      * Creates a details fragment.
 170      *
 171      * When 'fileToDetail' or 'ocAccount' are null, creates a dummy layout (to use when a file wasn't tapped before).
 172      *
 173      * @param fileToDetail      An {@link OCFile} to show in the fragment
 174      * @param ocAccount         An ownCloud account; needed to start downloads
 175      */
 176     public FileDetailFragment(OCFile fileToDetail, Account ocAccount) {
 177         mFile = fileToDetail;
 178         mAccount = ocAccount;
 179         mStorageManager = null; // we need a context to init this; the container activity is not available yet at this moment
 180         mLayout = R.layout.file_details_empty;
 181         mProgressListener = null;
 182     }
 183
 184
 185     @Override
 186     public void onCreate(Bundle savedInstanceState) {
 187         super.onCreate(savedInstanceState);
 188         mHandler = new Handler();
 189     }
 190
 191
 192     @Override
 193     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 194             Bundle savedInstanceState) {
 195         super.onCreateView(inflater, container, savedInstanceState);
 196
 197         if (savedInstanceState != null) {
 198             mFile = savedInstanceState.getParcelable(FileDetailFragment.EXTRA_FILE);
 199             mAccount = savedInstanceState.getParcelable(FileDetailFragment.EXTRA_ACCOUNT);
 200         }
 201
 202         if(mFile != null && mAccount != null) {
 203             mLayout = R.layout.file_details_fragment;
 204         }
 205
 206         View view = null;
 207         view = inflater.inflate(mLayout, container, false);
 208         mView = view;
 209
 210         if (mLayout == R.layout.file_details_fragment) {
 211             mView.findViewById(R.id.fdKeepInSync).setOnClickListener(this);
 212             mView.findViewById(R.id.fdRenameBtn).setOnClickListener(this);
 213             mView.findViewById(R.id.fdDownloadBtn).setOnClickListener(this);
 214             mView.findViewById(R.id.fdOpenBtn).setOnClickListener(this);
 215             mView.findViewById(R.id.fdRemoveBtn).setOnClickListener(this);
 216             //mView.findViewById(R.id.fdShareBtn).setOnClickListener(this);
 217             ProgressBar progressBar = (ProgressBar)mView.findViewById(R.id.fdProgressBar);
 218             mProgressListener = new ProgressListener(progressBar);
 219         }
 220
 221         updateFileDetails(false);
 222         return view;
 223     }
 224
 225
 226     /**
 227      * {@inheritDoc}
 228      */
 229     @Override
 230     public void onAttach(Activity activity) {
 231         super.onAttach(activity);
 232         try {
 233             mContainerActivity = (ContainerActivity) activity;
 234
 235         } catch (ClassCastException e) {
 236             throw new ClassCastException(activity.toString() + " must implement " + FileDetailFragment.ContainerActivity.class.getSimpleName());
 237         }
 238     }
 239
 240
 241     /**
 242      * {@inheritDoc}
 243      */
 244     @Override
 245     public void onActivityCreated(Bundle savedInstanceState) {
 246         super.onActivityCreated(savedInstanceState);
 247         if (mAccount != null) {
 248             mStorageManager = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());;
 249             mView.setOnTouchListener(new OnSwipeTouchListener(getActivity()));
 250         }
 251     }
 252
 253
 254     @Override
 255     public void onSaveInstanceState(Bundle outState) {
 256         super.onSaveInstanceState(outState);
 257         outState.putParcelable(FileDetailFragment.EXTRA_FILE, mFile);
 258         outState.putParcelable(FileDetailFragment.EXTRA_ACCOUNT, mAccount);
 259     }
 260
 261     @Override
 262     public void onStart() {
 263         super.onStart();
 264         if (mFile != null && mFile.isAudio()) {
 265             bindMediaService();
 266         }
 267         listenForTransferProgress();
 268     }
 269
 270     @Override
 271     public void onResume() {
 272         super.onResume();
 273
 274         mDownloadFinishReceiver = new DownloadFinishReceiver();
 275         IntentFilter filter = new IntentFilter(
 276                 FileDownloader.DOWNLOAD_FINISH_MESSAGE);
 277         getActivity().registerReceiver(mDownloadFinishReceiver, filter);
 278
 279         mUploadFinishReceiver = new UploadFinishReceiver();
 280         filter = new IntentFilter(FileUploader.UPLOAD_FINISH_MESSAGE);
 281         getActivity().registerReceiver(mUploadFinishReceiver, filter);
 282
 283     }
 284
 285
 286     @Override
 287     public void onPause() {
 288         super.onPause();
 289
 290         getActivity().unregisterReceiver(mDownloadFinishReceiver);
 291         mDownloadFinishReceiver = null;
 292
 293         getActivity().unregisterReceiver(mUploadFinishReceiver);
 294         mUploadFinishReceiver = null;
 295     }
 296
 297
 298     @Override
 299     public void onStop() {
 300         super.onStop();
 301         if (mMediaServiceConnection != null) {
 302             Log.d(TAG, "Unbinding from MediaService ...");
 303             if (mMediaServiceBinder != null && mMediaController != null) {
 304                 mMediaServiceBinder.unregisterMediaController(mMediaController);
 305             }
 306             getActivity().unbindService(mMediaServiceConnection);
 307             mMediaServiceBinder = null;
 308             if (mMediaController != null) {
 309                 mMediaController.hide();
 310                 mMediaController = null;
 311             }
 312         }
 313         leaveTransferProgress();
 314     }
 315
 316
 317     @Override
 318     public View getView() {
 319         return super.getView() == null ? mView : super.getView();
 320     }
 321
 322
 323     @Override
 324     public void onClick(View v) {
 325         switch (v.getId()) {
 326             case R.id.fdDownloadBtn: {
 327                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 328                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 329                 if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, mFile)) {
 330                     downloaderBinder.cancel(mAccount, mFile);
 331                     if (mFile.isDown()) {
 332                         setButtonsForDown();
 333                     } else {
 334                         setButtonsForRemote();
 335                     }
 336
 337                 } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, mFile)) {
 338                     uploaderBinder.cancel(mAccount, mFile);
 339                     if (!mFile.fileExists()) {
 340                         // TODO make something better
 341                         if (getActivity() instanceof FileDisplayActivity) {
 342                             // double pane
 343                             FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
 344                             transaction.replace(R.id.file_details_container, new FileDetailFragment(null, null), FTAG); // empty FileDetailFragment
 345                             transaction.commit();
 346                             mContainerActivity.onFileStateChanged();
 347                         } else {
 348                             getActivity().finish();
 349                         }
 350
 351                     } else if (mFile.isDown()) {
 352                         setButtonsForDown();
 353                     } else {
 354                         setButtonsForRemote();
 355                     }
 356
 357                 } else {
 358                     mLastRemoteOperation = new SynchronizeFileOperation(mFile, null, mStorageManager, mAccount, true, false, getActivity());
 359                     WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());
 360                     mLastRemoteOperation.execute(wc, this, mHandler);
 361
 362                     // update ui
 363                     boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 364                     getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 365
 366                 }
 367                 break;
 368             }
 369             case R.id.fdKeepInSync: {
 370                 CheckBox cb = (CheckBox) getView().findViewById(R.id.fdKeepInSync);
 371                 mFile.setKeepInSync(cb.isChecked());
 372                 mStorageManager.saveFile(mFile);
 373
 374                 /// register the OCFile instance in the observer service to monitor local updates;
 375                 /// if necessary, the file is download
 376                 Intent intent = new Intent(getActivity().getApplicationContext(),
 377                                            FileObserverService.class);
 378                 intent.putExtra(FileObserverService.KEY_FILE_CMD,
 379                            (cb.isChecked()?
 380                                    FileObserverService.CMD_ADD_OBSERVED_FILE:
 381                                    FileObserverService.CMD_DEL_OBSERVED_FILE));
 382                 intent.putExtra(FileObserverService.KEY_CMD_ARG_FILE, mFile);
 383                 intent.putExtra(FileObserverService.KEY_CMD_ARG_ACCOUNT, mAccount);
 384                 getActivity().startService(intent);
 385
 386                 if (mFile.keepInSync()) {
 387                     onClick(getView().findViewById(R.id.fdDownloadBtn));    // force an immediate synchronization
 388                 }
 389                 break;
 390             }
 391             case R.id.fdRenameBtn: {
 392                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), mFile.getFileName(), this);
 393                 dialog.show(getFragmentManager(), "nameeditdialog");
 394                 break;
 395             }
 396             case R.id.fdRemoveBtn: {
 397                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 398                         R.string.confirmation_remove_alert,
 399                         new String[]{mFile.getFileName()},
 400                         mFile.isDown() ? R.string.confirmation_remove_remote_and_local : R.string.confirmation_remove_remote,
 401                         mFile.isDown() ? R.string.confirmation_remove_local : -1,
 402                         R.string.common_cancel);
 403                 confDialog.setOnConfirmationListener(this);
 404                 confDialog.show(getFragmentManager(), FTAG_CONFIRMATION);
 405                 break;
 406             }
 407             case R.id.fdOpenBtn: {
 408                 openFile();
 409                 break;
 410             }
 411             default:
 412                 Log.e(TAG, "Incorrect view clicked!");
 413         }
 414
 415         /* else if (v.getId() == R.id.fdShareBtn) {
 416             Thread t = new Thread(new ShareRunnable(mFile.getRemotePath()));
 417             t.start();
 418         }*/
 419     }
 420
 421
 422     private void startVideoActivity() {
 423         Intent i = new Intent(getActivity(), PreviewVideoActivity.class);
 424         i.putExtra(PreviewVideoActivity.EXTRA_FILE, mFile);
 425         i.putExtra(PreviewVideoActivity.EXTRA_ACCOUNT, mAccount);
 426         startActivity(i);
 427     }
 428
 429
 430     private void bindMediaService() {
 431         Log.d(TAG, "Binding to MediaService...");
 432         if (mMediaServiceConnection == null) {
 433             mMediaServiceConnection = new MediaServiceConnection();
 434         }
 435         getActivity().bindService(  new Intent(getActivity(),
 436                                     MediaService.class),
 437                                     mMediaServiceConnection,
 438                                     Context.BIND_AUTO_CREATE);
 439             // follow the flow in MediaServiceConnection#onServiceConnected(...)
 440     }
 441
 442     /** Defines callbacks for service binding, passed to bindService() */
 443     private class MediaServiceConnection implements ServiceConnection {
 444
 445         @Override
 446         public void onServiceConnected(ComponentName component, IBinder service) {
 447             if (component.equals(new ComponentName(getActivity(), MediaService.class))) {
 448                 Log.d(TAG, "Media service connected");
 449                 mMediaServiceBinder = (MediaServiceBinder) service;
 450                 if (mMediaServiceBinder != null) {
 451                     if (mMediaController == null) {
 452                         mMediaController = new MediaController(getSherlockActivity());
 453                     }
 454                     prepareMediaController();
 455
 456                     Log.d(TAG, "Successfully bound to MediaService, MediaController ready");
 457
 458                 } else {
 459                     Log.e(TAG, "Unexpected response from MediaService while binding");
 460                 }
 461             }
 462         }
 463
 464         private void prepareMediaController() {
 465             mMediaServiceBinder.registerMediaController(mMediaController);
 466             mMediaController.setMediaPlayer(mMediaServiceBinder);
 467             mMediaController.setAnchorView(getView());
 468             mMediaController.setEnabled(mMediaServiceBinder.isInPlaybackState());
 469         }
 470
 471         @Override
 472         public void onServiceDisconnected(ComponentName component) {
 473             if (component.equals(new ComponentName(getActivity(), MediaService.class))) {
 474                 Log.e(TAG, "Media service suddenly disconnected");
 475                 if (mMediaController != null) {
 476                     mMediaController.hide();
 477                     mMediaController.setMediaPlayer(null);
 478                     mMediaController = null;
 479                 }
 480                 mMediaServiceBinder = null;
 481                 mMediaServiceConnection = null;
 482             }
 483         }
 484     }
 485
 486
 487     /**
 488      * Opens mFile.
 489      */
 490     private void openFile() {
 491
 492         String storagePath = mFile.getStoragePath();
 493         String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 494         try {
 495             Intent i = new Intent(Intent.ACTION_VIEW);
 496             i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mFile.getMimetype());
 497             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 498             startActivity(i);
 499
 500         } catch (Throwable t) {
 501             Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mFile.getMimetype());
 502             boolean toastIt = true;
 503             String mimeType = "";
 504             try {
 505                 Intent i = new Intent(Intent.ACTION_VIEW);
 506                 mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 507                 if (mimeType == null || !mimeType.equals(mFile.getMimetype())) {
 508                     if (mimeType != null) {
 509                         i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 510                     } else {
 511                         // desperate try
 512                         i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), "*/*");
 513                     }
 514                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 515                     startActivity(i);
 516                     toastIt = false;
 517                 }
 518
 519             } catch (IndexOutOfBoundsException e) {
 520                 Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 521
 522             } catch (ActivityNotFoundException e) {
 523                 Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 524
 525             } catch (Throwable th) {
 526                 Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 527
 528             } finally {
 529                 if (toastIt) {
 530                     Toast.makeText(getActivity(), "There is no application to handle file " + mFile.getFileName(), Toast.LENGTH_SHORT).show();
 531                 }
 532             }
 533
 534         }
 535     }
 536
 537
 538     @Override
 539     public void onConfirmation(String callerTag) {
 540         if (callerTag.equals(FTAG_CONFIRMATION)) {
 541             if (mStorageManager.getFileById(mFile.getFileId()) != null) {
 542                 mLastRemoteOperation = new RemoveFileOperation( mFile,
 543                                                                 true,
 544                                                                 mStorageManager);
 545                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());
 546                 mLastRemoteOperation.execute(wc, this, mHandler);
 547
 548                 boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 549                 getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 550             }
 551         }
 552     }
 553
 554     @Override
 555     public void onNeutral(String callerTag) {
 556         File f = null;
 557         if (mFile.isDown() && (f = new File(mFile.getStoragePath())).exists()) {
 558             f.delete();
 559             mFile.setStoragePath(null);
 560             mStorageManager.saveFile(mFile);
 561             updateFileDetails(mFile, mAccount);
 562         }
 563     }
 564
 565     @Override
 566     public void onCancel(String callerTag) {
 567         Log.d(TAG, "REMOVAL CANCELED");
 568     }
 569
 570
 571     /**
 572      * Check if the fragment was created with an empty layout. An empty fragment can't show file details, must be replaced.
 573      *
 574      * @return  True when the fragment was created with the empty layout.
 575      */
 576     public boolean isEmpty() {
 577         return (mLayout == R.layout.file_details_empty || mFile == null || mAccount == null);
 578     }
 579
 580
 581     /**
 582      * {@inheritDoc}
 583      */
 584     public OCFile getFile(){
 585         return mFile;
 586     }
 587
 588     /**
 589      * Use this method to signal this Activity that it shall update its view.
 590      *
 591      * @param file : An {@link OCFile}
 592      */
 593     public void updateFileDetails(OCFile file, Account ocAccount) {
 594         mFile = file;
 595         if (ocAccount != null && (
 596                 mStorageManager == null ||
 597                 (mAccount != null && !mAccount.equals(ocAccount))
 598            )) {
 599             mStorageManager = new FileDataStorageManager(ocAccount, getActivity().getApplicationContext().getContentResolver());
 600         }
 601         mAccount = ocAccount;
 602         updateFileDetails(false);
 603     }
 604
 605
 606     /**
 607      * Updates the view with all relevant details about that file.
 608      *
 609      * TODO Remove parameter when the transferring state of files is kept in database.
 610      *
 611      * TODO REFACTORING! this method called 5 times before every time the fragment is shown!
 612      *
 613      * @param transferring      Flag signaling if the file should be considered as downloading or uploading,
 614      *                          although {@link FileDownloaderBinder#isDownloading(Account, OCFile)}  and
 615      *                          {@link FileUploaderBinder#isUploading(Account, OCFile)} return false.
 616      *
 617      */
 618     public void updateFileDetails(boolean transferring) {
 619
 620         if (readyToShow()) {
 621
 622             // set file details
 623             setFilename(mFile.getFileName());
 624             setFiletype(mFile.getMimetype());
 625             setFilesize(mFile.getFileLength());
 626             if(ocVersionSupportsTimeCreated()){
 627                 setTimeCreated(mFile.getCreationTimestamp());
 628             }
 629
 630             setTimeModified(mFile.getModificationTimestamp());
 631
 632             CheckBox cb = (CheckBox)getView().findViewById(R.id.fdKeepInSync);
 633             cb.setChecked(mFile.keepInSync());
 634
 635             // configure UI for depending upon local state of the file
 636             //if (FileDownloader.isDownloading(mAccount, mFile.getRemotePath()) || FileUploader.isUploading(mAccount, mFile.getRemotePath())) {
 637             FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 638             FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 639             if (transferring || (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, mFile)) || (uploaderBinder != null && uploaderBinder.isUploading(mAccount, mFile))) {
 640                 setButtonsForTransferring();
 641
 642             } else if (mFile.isDown()) {
 643
 644                 setButtonsForDown();
 645
 646             } else {
 647                 // TODO load default preview image; when the local file is removed, the preview remains there
 648                 setButtonsForRemote();
 649             }
 650         }
 651         getView().invalidate();
 652     }
 653
 654
 655     /**
 656      * Checks if the fragment is ready to show details of a OCFile
 657      *
 658      * @return  'True' when the fragment is ready to show details of a file
 659      */
 660     private boolean readyToShow() {
 661         return (mFile != null && mAccount != null && mLayout == R.layout.file_details_fragment);
 662     }
 663
 664
 665
 666     /**
 667      * Updates the filename in view
 668      * @param filename to set
 669      */
 670     private void setFilename(String filename) {
 671         TextView tv = (TextView) getView().findViewById(R.id.fdFilename);
 672         if (tv != null)
 673             tv.setText(filename);
 674     }
 675
 676     /**
 677      * Updates the MIME type in view
 678      * @param mimetype to set
 679      */
 680     private void setFiletype(String mimetype) {
 681         TextView tv = (TextView) getView().findViewById(R.id.fdType);
 682         if (tv != null) {
 683             String printableMimetype = DisplayUtils.convertMIMEtoPrettyPrint(mimetype);;
 684             tv.setText(printableMimetype);
 685         }
 686         ImageView iv = (ImageView) getView().findViewById(R.id.fdIcon);
 687         if (iv != null) {
 688             iv.setImageResource(DisplayUtils.getResourceId(mimetype));
 689         }
 690     }
 691
 692     /**
 693      * Updates the file size in view
 694      * @param filesize in bytes to set
 695      */
 696     private void setFilesize(long filesize) {
 697         TextView tv = (TextView) getView().findViewById(R.id.fdSize);
 698         if (tv != null)
 699             tv.setText(DisplayUtils.bytesToHumanReadable(filesize));
 700     }
 701
 702     /**
 703      * Updates the time that the file was created in view
 704      * @param milliseconds Unix time to set
 705      */
 706     private void setTimeCreated(long milliseconds){
 707         TextView tv = (TextView) getView().findViewById(R.id.fdCreated);
 708         TextView tvLabel = (TextView) getView().findViewById(R.id.fdCreatedLabel);
 709         if(tv != null){
 710             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 711             tv.setVisibility(View.VISIBLE);
 712             tvLabel.setVisibility(View.VISIBLE);
 713         }
 714     }
 715
 716     /**
 717      * Updates the time that the file was last modified
 718      * @param milliseconds Unix time to set
 719      */
 720     private void setTimeModified(long milliseconds){
 721         TextView tv = (TextView) getView().findViewById(R.id.fdModified);
 722         if(tv != null){
 723             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 724         }
 725     }
 726
 727     /**
 728      * Enables or disables buttons for a file being downloaded
 729      */
 730     private void setButtonsForTransferring() {
 731         if (!isEmpty()) {
 732             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 733             downloadButton.setText(R.string.common_cancel);
 734             //downloadButton.setEnabled(false);
 735
 736             // let's protect the user from himself ;)
 737             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 738             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(false);
 739             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(false);
 740             getView().findViewById(R.id.fdKeepInSync).setEnabled(false);
 741
 742             // show the progress bar for the transfer
 743             ProgressBar progressBar = (ProgressBar)getView().findViewById(R.id.fdProgressBar);
 744             progressBar.setVisibility(View.VISIBLE);
 745             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 746             progressText.setVisibility(View.VISIBLE);
 747             FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 748             FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 749             if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, mFile)) {
 750                 progressText.setText(R.string.downloader_download_in_progress_ticker);
 751             } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, mFile)) {
 752                 progressText.setText(R.string.uploader_upload_in_progress_ticker);
 753             }
 754         }
 755     }
 756
 757
 758     /**
 759      * Enables or disables buttons for a file locally available
 760      */
 761     private void setButtonsForDown() {
 762         if (!isEmpty()) {
 763             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 764             downloadButton.setText(R.string.filedetails_sync_file);
 765
 766             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(true);
 767             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 768             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 769             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 770
 771             // hides the progress bar
 772             ProgressBar progressBar = (ProgressBar)getView().findViewById(R.id.fdProgressBar);
 773             progressBar.setVisibility(View.GONE);
 774             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 775             progressText.setVisibility(View.GONE);
 776         }
 777     }
 778
 779     /**
 780      * Enables or disables buttons for a file not locally available
 781      */
 782     private void setButtonsForRemote() {
 783         if (!isEmpty()) {
 784             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 785             downloadButton.setText(R.string.filedetails_download);
 786
 787             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 788             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 789             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 790             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 791
 792             // hides the progress bar
 793             ProgressBar progressBar = (ProgressBar)getView().findViewById(R.id.fdProgressBar);
 794             progressBar.setVisibility(View.GONE);
 795             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 796             progressText.setVisibility(View.GONE);
 797         }
 798     }
 799
 800
 801     /**
 802      * In ownCloud 3.X.X and 4.X.X there is a bug that SabreDAV does not return
 803      * the time that the file was created. There is a chance that this will
 804      * be fixed in future versions. Use this method to check if this version of
 805      * ownCloud has this fix.
 806      * @return True, if ownCloud the ownCloud version is supporting creation time
 807      */
 808     private boolean ocVersionSupportsTimeCreated(){
 809         /*if(mAccount != null){
 810             AccountManager accManager = (AccountManager) getActivity().getSystemService(Context.ACCOUNT_SERVICE);
 811             OwnCloudVersion ocVersion = new OwnCloudVersion(accManager
 812                     .getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 813             if(ocVersion.compareTo(new OwnCloudVersion(0x030000)) < 0) {
 814                 return true;
 815             }
 816         }*/
 817         return false;
 818     }
 819
 820
 821     /**
 822      * Once the file download has finished -> update view
 823      * @author Bartek Przybylski
 824      */
 825     private class DownloadFinishReceiver extends BroadcastReceiver {
 826         @Override
 827         public void onReceive(Context context, Intent intent) {
 828             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
 829
 830             if (!isEmpty() && accountName.equals(mAccount.name)) {
 831                 boolean downloadWasFine = intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false);
 832                 String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
 833                 if (mFile.getRemotePath().equals(downloadedRemotePath)) {
 834                     if (downloadWasFine) {
 835                         mFile = mStorageManager.getFileByPath(downloadedRemotePath);
 836                     }
 837                     mContainerActivity.notifySuccessfulDownload(mFile, intent, downloadWasFine);
 838                     getActivity().removeStickyBroadcast(intent);
 839                     updateFileDetails(false);    // it updates the buttons; must be called although !downloadWasFine
 840                 }
 841             }
 842         }
 843     }
 844
 845
 846     /**
 847      * Once the file upload has finished -> update view
 848      *
 849      * Being notified about the finish of an upload is necessary for the next sequence:
 850      *   1. Upload a big file.
 851      *   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
 852      *      of its containing folder; the the server includes it in the PROPFIND requests although it's not fully upload.
 853      *   3. Click the file in the list to see its details.
 854      *   4. Wait for the upload finishes; at this moment, the details view must be refreshed to enable the action buttons.
 855      */
 856     private class UploadFinishReceiver extends BroadcastReceiver {
 857         @Override
 858         public void onReceive(Context context, Intent intent) {
 859             String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
 860
 861             if (!isEmpty() && accountName.equals(mAccount.name)) {
 862                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
 863                 String uploadRemotePath = intent.getStringExtra(FileUploader.EXTRA_REMOTE_PATH);
 864                 boolean renamedInUpload = mFile.getRemotePath().equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
 865                 if (mFile.getRemotePath().equals(uploadRemotePath) ||
 866                     renamedInUpload) {
 867                     if (uploadWasFine) {
 868                         mFile = mStorageManager.getFileByPath(uploadRemotePath);
 869                     }
 870                     if (renamedInUpload) {
 871                         String newName = (new File(uploadRemotePath)).getName();
 872                         Toast msg = Toast.makeText(getActivity().getApplicationContext(), String.format(getString(R.string.filedetails_renamed_in_upload_msg), newName), Toast.LENGTH_LONG);
 873                         msg.show();
 874                     }
 875                     getSherlockActivity().removeStickyBroadcast(intent);    // not the best place to do this; a small refactorization of BroadcastReceivers should be done
 876                     updateFileDetails(false);    // it updates the buttons; must be called although !uploadWasFine; interrupted uploads still leave an incomplete file in the server
 877                 }
 878             }
 879         }
 880     }
 881
 882
 883     // this is a temporary class for sharing purposes, it need to be replaced in transfer service
 884     @SuppressWarnings("unused")
 885     private class ShareRunnable implements Runnable {
 886         private String mPath;
 887
 888         public ShareRunnable(String path) {
 889             mPath = path;
 890         }
 891
 892         public void run() {
 893             AccountManager am = AccountManager.get(getActivity());
 894             Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 895             OwnCloudVersion ocv = new OwnCloudVersion(am.getUserData(account, AccountAuthenticator.KEY_OC_VERSION));
 896             String url = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + AccountUtils.getWebdavPath(ocv);
 897
 898             Log.d("share", "sharing for version " + ocv.toString());
 899
 900             if (ocv.compareTo(new OwnCloudVersion(0x040000)) >= 0) {
 901                 String APPS_PATH = "/apps/files_sharing/";
 902                 String SHARE_PATH = "ajax/share.php";
 903
 904                 String SHARED_PATH = "/apps/files_sharing/get.php?token=";
 905
 906                 final String WEBDAV_SCRIPT = "webdav.php";
 907                 final String WEBDAV_FILES_LOCATION = "/files/";
 908
 909                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(account, getActivity().getApplicationContext());
 910                 HttpConnectionManagerParams params = new HttpConnectionManagerParams();
 911                 params.setMaxConnectionsPerHost(wc.getHostConfiguration(), 5);
 912
 913                 //wc.getParams().setParameter("http.protocol.single-cookie-header", true);
 914                 //wc.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
 915
 916                 PostMethod post = new PostMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + APPS_PATH + SHARE_PATH);
 917
 918                 post.addRequestHeader("Content-type","application/x-www-form-urlencoded; charset=UTF-8" );
 919                 post.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 920                 List<NameValuePair> formparams = new ArrayList<NameValuePair>();
 921                 Log.d("share", mPath+"");
 922                 formparams.add(new BasicNameValuePair("sources",mPath));
 923                 formparams.add(new BasicNameValuePair("uid_shared_with", "public"));
 924                 formparams.add(new BasicNameValuePair("permissions", "0"));
 925                 post.setRequestEntity(new StringRequestEntity(URLEncodedUtils.format(formparams, HTTP.UTF_8)));
 926
 927                 int status;
 928                 try {
 929                     PropFindMethod find = new PropFindMethod(url+"/");
 930                     find.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 931                     Log.d("sharer", ""+ url+"/");
 932
 933                     for (org.apache.commons.httpclient.Header a : find.getRequestHeaders()) {
 934                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 935                     }
 936
 937                     int status2 = wc.executeMethod(find);
 938
 939                     Log.d("sharer", "propstatus "+status2);
 940
 941                     GetMethod get = new GetMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + "/");
 942                     get.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 943
 944                     status2 = wc.executeMethod(get);
 945
 946                     Log.d("sharer", "getstatus "+status2);
 947                     Log.d("sharer", "" + get.getResponseBodyAsString());
 948
 949                     for (org.apache.commons.httpclient.Header a : get.getResponseHeaders()) {
 950                         Log.d("sharer", a.getName() + ":"+a.getValue());
 951                     }
 952
 953                     status = wc.executeMethod(post);
 954                     for (org.apache.commons.httpclient.Header a : post.getRequestHeaders()) {
 955                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 956                     }
 957                     for (org.apache.commons.httpclient.Header a : post.getResponseHeaders()) {
 958                         Log.d("sharer", a.getName() + ":"+a.getValue());
 959                     }
 960                     String resp = post.getResponseBodyAsString();
 961                     Log.d("share", ""+post.getURI().toString());
 962                     Log.d("share", "returned status " + status);
 963                     Log.d("share", " " +resp);
 964
 965                     if(status != HttpStatus.SC_OK ||resp == null || resp.equals("") || resp.startsWith("false")) {
 966                         return;
 967                      }
 968
 969                     JSONObject jsonObject = new JSONObject (resp);
 970                     String jsonStatus = jsonObject.getString("status");
 971                     if(!jsonStatus.equals("success")) throw new Exception("Error while sharing file status != success");
 972
 973                     String token = jsonObject.getString("data");
 974                     String uri = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + SHARED_PATH + token;
 975                     Log.d("Actions:shareFile ok", "url: " + uri);
 976
 977                 } catch (Exception e) {
 978                     e.printStackTrace();
 979                 }
 980
 981             } else if (ocv.compareTo(new OwnCloudVersion(0x030000)) >= 0) {
 982
 983             }
 984         }
 985     }
 986
 987     public void onDismiss(EditNameDialog dialog) {
 988         if (dialog.getResult()) {
 989             String newFilename = dialog.getNewFilename();
 990             Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 991             mLastRemoteOperation = new RenameFileOperation( mFile,
 992                                                             mAccount,
 993                                                             newFilename,
 994                                                             new FileDataStorageManager(mAccount, getActivity().getContentResolver()));
 995             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());
 996             mLastRemoteOperation.execute(wc, this, mHandler);
 997             boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 998             getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 999         }
1000     }
1001
1002
1003     /**
1004      * {@inheritDoc}
1005      */
1006     @Override
1007     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
1008         if (operation.equals(mLastRemoteOperation)) {
1009             if (operation instanceof RemoveFileOperation) {
1010                 onRemoveFileOperationFinish((RemoveFileOperation)operation, result);
1011
1012             } else if (operation instanceof RenameFileOperation) {
1013                 onRenameFileOperationFinish((RenameFileOperation)operation, result);
1014
1015             } else if (operation instanceof SynchronizeFileOperation) {
1016                 onSynchronizeFileOperationFinish((SynchronizeFileOperation)operation, result);
1017             }
1018         }
1019     }
1020
1021
1022     private void onRemoveFileOperationFinish(RemoveFileOperation operation, RemoteOperationResult result) {
1023         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
1024         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
1025
1026         if (result.isSuccess()) {
1027             Toast msg = Toast.makeText(getActivity().getApplicationContext(), R.string.remove_success_msg, Toast.LENGTH_LONG);
1028             msg.show();
1029             if (inDisplayActivity) {
1030                 // double pane
1031                 FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
1032                 transaction.replace(R.id.file_details_container, new FileDetailFragment(null, null)); // empty FileDetailFragment
1033                 transaction.commit();
1034                 mContainerActivity.onFileStateChanged();
1035             } else {
1036                 getActivity().finish();
1037             }
1038
1039         } else {
1040             Toast msg = Toast.makeText(getActivity(), R.string.remove_fail_msg, Toast.LENGTH_LONG);
1041             msg.show();
1042             if (result.isSslRecoverableException()) {
1043                 // TODO show the SSL warning dialog
1044             }
1045         }
1046     }
1047
1048     private void onRenameFileOperationFinish(RenameFileOperation operation, RemoteOperationResult result) {
1049         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
1050         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
1051
1052         if (result.isSuccess()) {
1053             updateFileDetails(((RenameFileOperation)operation).getFile(), mAccount);
1054             mContainerActivity.onFileStateChanged();
1055
1056         } else {
1057             if (result.getCode().equals(ResultCode.INVALID_LOCAL_FILE_NAME)) {
1058                 Toast msg = Toast.makeText(getActivity(), R.string.rename_local_fail_msg, Toast.LENGTH_LONG);
1059                 msg.show();
1060                 // TODO throw again the new rename dialog
1061             } else {
1062                 Toast msg = Toast.makeText(getActivity(), R.string.rename_server_fail_msg, Toast.LENGTH_LONG);
1063                 msg.show();
1064                 if (result.isSslRecoverableException()) {
1065                     // TODO show the SSL warning dialog
1066                 }
1067             }
1068         }
1069     }
1070
1071     private void onSynchronizeFileOperationFinish(SynchronizeFileOperation operation, RemoteOperationResult result) {
1072         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
1073         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
1074
1075         if (!result.isSuccess()) {
1076             if (result.getCode() == ResultCode.SYNC_CONFLICT) {
1077                 Intent i = new Intent(getActivity(), ConflictsResolveActivity.class);
1078                 i.putExtra(ConflictsResolveActivity.EXTRA_FILE, mFile);
1079                 i.putExtra(ConflictsResolveActivity.EXTRA_ACCOUNT, mAccount);
1080                 startActivity(i);
1081
1082             } else {
1083                 Toast msg = Toast.makeText(getActivity(), R.string.sync_file_fail_msg, Toast.LENGTH_LONG);
1084                 msg.show();
1085             }
1086
1087             if (mFile.isDown()) {
1088                 setButtonsForDown();
1089
1090             } else {
1091                 setButtonsForRemote();
1092             }
1093
1094         } else {
1095             if (operation.transferWasRequested()) {
1096                 setButtonsForTransferring();
1097                 mContainerActivity.onFileStateChanged();    // this is not working; FileDownloader won't do NOTHING at all until this method finishes, so
1098                                                             // checking the service to see if the file is downloading results in FALSE
1099             } else {
1100                 Toast msg = Toast.makeText(getActivity(), R.string.sync_file_nothing_to_do_msg, Toast.LENGTH_LONG);
1101                 msg.show();
1102                 if (mFile.isDown()) {
1103                     setButtonsForDown();
1104
1105                 } else {
1106                     setButtonsForRemote();
1107                 }
1108             }
1109         }
1110     }
1111
1112
1113     public void listenForTransferProgress() {
1114         if (mProgressListener != null) {
1115             if (mContainerActivity.getFileDownloaderBinder() != null) {
1116                 mContainerActivity.getFileDownloaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, mFile);
1117             }
1118             if (mContainerActivity.getFileUploaderBinder() != null) {
1119                 mContainerActivity.getFileUploaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, mFile);
1120             }
1121         }
1122     }
1123
1124
1125     public void leaveTransferProgress() {
1126         if (mProgressListener != null) {
1127             if (mContainerActivity.getFileDownloaderBinder() != null) {
1128                 mContainerActivity.getFileDownloaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, mFile);
1129             }
1130             if (mContainerActivity.getFileUploaderBinder() != null) {
1131                 mContainerActivity.getFileUploaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, mFile);
1132             }
1133         }
1134     }
1135
1136
1137
1138     /**
1139      * Helper class responsible for updating the progress bar shown for file uploading or downloading
1140      *
1141      * @author David A. Velasco
1142      */
1143     private class ProgressListener implements OnDatatransferProgressListener {
1144         int mLastPercent = 0;
1145         WeakReference<ProgressBar> mProgressBar = null;
1146
1147         ProgressListener(ProgressBar progressBar) {
1148             mProgressBar = new WeakReference<ProgressBar>(progressBar);
1149         }
1150
1151         @Override
1152         public void onTransferProgress(long progressRate) {
1153             // old method, nothing here
1154         };
1155
1156         @Override
1157         public void onTransferProgress(long progressRate, long totalTransferredSoFar, long totalToTransfer, String filename) {
1158             int percent = (int)(100.0*((double)totalTransferredSoFar)/((double)totalToTransfer));
1159             if (percent != mLastPercent) {
1160                 ProgressBar pb = mProgressBar.get();
1161                 if (pb != null) {
1162                     pb.setProgress(percent);
1163                     pb.postInvalidate();
1164                 }
1165             }
1166             mLastPercent = percent;
1167         }
1168
1169     };
1170
1171
1172
1173 }