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.io.IOException;
  22 import java.util.ArrayList;
  23 import java.util.List;
  24
  25 import org.apache.commons.httpclient.HttpException;
  26 import org.apache.commons.httpclient.methods.GetMethod;
  27 import org.apache.commons.httpclient.methods.PostMethod;
  28 import org.apache.commons.httpclient.methods.StringRequestEntity;
  29 import org.apache.commons.httpclient.params.HttpConnectionManagerParams;
  30 import org.apache.http.HttpStatus;
  31 import org.apache.http.NameValuePair;
  32 import org.apache.http.client.utils.URLEncodedUtils;
  33 import org.apache.http.message.BasicNameValuePair;
  34 import org.apache.http.protocol.HTTP;
  35 import org.apache.jackrabbit.webdav.client.methods.DavMethodBase;
  36 import org.apache.jackrabbit.webdav.client.methods.DeleteMethod;
  37 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
  38 import org.json.JSONException;
  39 import org.json.JSONObject;
  40
  41 import android.accounts.Account;
  42 import android.accounts.AccountManager;
  43 import android.annotation.SuppressLint;
  44 import android.app.Activity;
  45 import android.content.ActivityNotFoundException;
  46 import android.content.BroadcastReceiver;
  47 import android.content.Context;
  48 import android.content.Intent;
  49 import android.content.IntentFilter;
  50 import android.content.res.Resources.NotFoundException;
  51 import android.graphics.Bitmap;
  52 import android.graphics.BitmapFactory;
  53 import android.graphics.BitmapFactory.Options;
  54 import android.graphics.Point;
  55 import android.net.Uri;
  56 import android.os.AsyncTask;
  57 import android.os.Bundle;
  58 import android.os.Handler;
  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.View;
  64 import android.view.View.OnClickListener;
  65 import android.view.ViewGroup;
  66 import android.view.WindowManager.LayoutParams;
  67 import android.webkit.MimeTypeMap;
  68 import android.widget.Button;
  69 import android.widget.CheckBox;
  70 import android.widget.ImageView;
  71 import android.widget.TextView;
  72 import android.widget.Toast;
  73
  74 import com.actionbarsherlock.app.SherlockDialogFragment;
  75 import com.actionbarsherlock.app.SherlockFragment;
  76 import com.owncloud.android.AccountUtils;
  77 import com.owncloud.android.DisplayUtils;
  78 import com.owncloud.android.authenticator.AccountAuthenticator;
  79 import com.owncloud.android.datamodel.FileDataStorageManager;
  80 import com.owncloud.android.datamodel.OCFile;
  81 import com.owncloud.android.files.services.FileDownloader;
  82 import com.owncloud.android.files.services.FileObserverService;
  83 import com.owncloud.android.files.services.FileUploader;
  84 import com.owncloud.android.ui.activity.FileDetailActivity;
  85 import com.owncloud.android.ui.activity.FileDisplayActivity;
  86 import com.owncloud.android.utils.OwnCloudClientUtils;
  87 import com.owncloud.android.utils.OwnCloudVersion;
  88
  89 import com.owncloud.android.R;
  90 import eu.alefzero.webdav.WebdavClient;
  91 import eu.alefzero.webdav.WebdavUtils;
  92
  93 /**
  94  * This Fragment is used to display the details about a file.
  95  *
  96  * @author Bartek Przybylski
  97  *
  98  */
  99 public class FileDetailFragment extends SherlockFragment implements
 100         OnClickListener, ConfirmationDialogFragment.ConfirmationDialogFragmentListener {
 101
 102     public static final String EXTRA_FILE = "FILE";
 103     public static final String EXTRA_ACCOUNT = "ACCOUNT";
 104
 105     private FileDetailFragment.ContainerActivity mContainerActivity;
 106
 107     private int mLayout;
 108     private View mView;
 109     private OCFile mFile;
 110     private Account mAccount;
 111     private ImageView mPreview;
 112
 113     private DownloadFinishReceiver mDownloadFinishReceiver;
 114     private UploadFinishReceiver mUploadFinishReceiver;
 115
 116     private static final String TAG = "FileDetailFragment";
 117     public static final String FTAG = "FileDetails";
 118     public static final String FTAG_CONFIRMATION = "REMOVE_CONFIRMATION_FRAGMENT";
 119
 120
 121     /**
 122      * Creates an empty details fragment.
 123      *
 124      * It's necessary to keep a public constructor without parameters; the system uses it when tries to reinstantiate a fragment automatically.
 125      */
 126     public FileDetailFragment() {
 127         mFile = null;
 128         mAccount = null;
 129         mLayout = R.layout.file_details_empty;
 130     }
 131
 132
 133     /**
 134      * Creates a details fragment.
 135      *
 136      * When 'fileToDetail' or 'ocAccount' are null, creates a dummy layout (to use when a file wasn't tapped before).
 137      *
 138      * @param fileToDetail      An {@link OCFile} to show in the fragment
 139      * @param ocAccount         An ownCloud account; needed to start downloads
 140      */
 141     public FileDetailFragment(OCFile fileToDetail, Account ocAccount){
 142         mFile = fileToDetail;
 143         mAccount = ocAccount;
 144         mLayout = R.layout.file_details_empty;
 145
 146         if(fileToDetail != null && ocAccount != null) {
 147             mLayout = R.layout.file_details_fragment;
 148         }
 149     }
 150
 151
 152     /**
 153      * {@inheritDoc}
 154      */
 155     @Override
 156     public void onAttach(Activity activity) {
 157         super.onAttach(activity);
 158         try {
 159             mContainerActivity = (ContainerActivity) activity;
 160         } catch (ClassCastException e) {
 161             throw new ClassCastException(activity.toString() + " must implement FileListFragment.ContainerActivity");
 162         }
 163     }
 164
 165
 166     @Override
 167     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 168             Bundle savedInstanceState) {
 169         super.onCreateView(inflater, container, savedInstanceState);
 170
 171         if (savedInstanceState != null) {
 172             mFile = savedInstanceState.getParcelable(FileDetailFragment.EXTRA_FILE);
 173             mAccount = savedInstanceState.getParcelable(FileDetailFragment.EXTRA_ACCOUNT);
 174         }
 175
 176         View view = null;
 177         view = inflater.inflate(mLayout, container, false);
 178         mView = view;
 179
 180         if (mLayout == R.layout.file_details_fragment) {
 181             mView.findViewById(R.id.fdKeepInSync).setOnClickListener(this);
 182             mView.findViewById(R.id.fdRenameBtn).setOnClickListener(this);
 183             mView.findViewById(R.id.fdDownloadBtn).setOnClickListener(this);
 184             mView.findViewById(R.id.fdOpenBtn).setOnClickListener(this);
 185             mView.findViewById(R.id.fdRemoveBtn).setOnClickListener(this);
 186             //mView.findViewById(R.id.fdShareBtn).setOnClickListener(this);
 187             mPreview = (ImageView)mView.findViewById(R.id.fdPreview);
 188         }
 189
 190         updateFileDetails();
 191         return view;
 192     }
 193
 194
 195     @Override
 196     public void onSaveInstanceState(Bundle outState) {
 197         Log.i(getClass().toString(), "onSaveInstanceState() start");
 198         super.onSaveInstanceState(outState);
 199         outState.putParcelable(FileDetailFragment.EXTRA_FILE, mFile);
 200         outState.putParcelable(FileDetailFragment.EXTRA_ACCOUNT, mAccount);
 201         Log.i(getClass().toString(), "onSaveInstanceState() end");
 202     }
 203
 204
 205     @Override
 206     public void onResume() {
 207         super.onResume();
 208
 209         mDownloadFinishReceiver = new DownloadFinishReceiver();
 210         IntentFilter filter = new IntentFilter(
 211                 FileDownloader.DOWNLOAD_FINISH_MESSAGE);
 212         getActivity().registerReceiver(mDownloadFinishReceiver, filter);
 213
 214         mUploadFinishReceiver = new UploadFinishReceiver();
 215         filter = new IntentFilter(FileUploader.UPLOAD_FINISH_MESSAGE);
 216         getActivity().registerReceiver(mUploadFinishReceiver, filter);
 217
 218         mPreview = (ImageView)mView.findViewById(R.id.fdPreview);
 219     }
 220
 221     @Override
 222     public void onPause() {
 223         super.onPause();
 224
 225         getActivity().unregisterReceiver(mDownloadFinishReceiver);
 226         mDownloadFinishReceiver = null;
 227
 228         getActivity().unregisterReceiver(mUploadFinishReceiver);
 229         mUploadFinishReceiver = null;
 230
 231         if (mPreview != null) {
 232             mPreview = null;
 233         }
 234     }
 235
 236     @Override
 237     public View getView() {
 238         return super.getView() == null ? mView : super.getView();
 239     }
 240
 241
 242
 243     @Override
 244     public void onClick(View v) {
 245         switch (v.getId()) {
 246             case R.id.fdDownloadBtn: {
 247                 Intent i = new Intent(getActivity(), FileDownloader.class);
 248                 i.putExtra(FileDownloader.EXTRA_ACCOUNT, mAccount);
 249                 i.putExtra(FileDownloader.EXTRA_REMOTE_PATH, mFile.getRemotePath());
 250                 i.putExtra(FileDownloader.EXTRA_FILE_PATH, mFile.getRemotePath());
 251                 i.putExtra(FileDownloader.EXTRA_FILE_SIZE, mFile.getFileLength());
 252
 253                 // update ui
 254                 setButtonsForTransferring();
 255
 256                 getActivity().startService(i);
 257                 mContainerActivity.onFileStateChanged();    // this is not working; it is performed before the fileDownloadService registers it as 'in progress'
 258                 break;
 259             }
 260             case R.id.fdKeepInSync: {
 261                 CheckBox cb = (CheckBox) getView().findViewById(R.id.fdKeepInSync);
 262                 mFile.setKeepInSync(cb.isChecked());
 263                 FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());
 264                 fdsm.saveFile(mFile);
 265                 if (mFile.keepInSync()) {
 266                     onClick(getView().findViewById(R.id.fdDownloadBtn));
 267                 } else {
 268                     mContainerActivity.onFileStateChanged();    // put inside 'else' to not call it twice (here, and in the virtual click on fdDownloadBtn)
 269                 }
 270                 Intent intent = new Intent(getActivity().getApplicationContext(),
 271                                            FileObserverService.class);
 272                 intent.putExtra(FileObserverService.KEY_FILE_CMD,
 273                            (cb.isChecked()?
 274                                    FileObserverService.CMD_ADD_OBSERVED_FILE:
 275                                    FileObserverService.CMD_DEL_OBSERVED_FILE));
 276                 intent.putExtra(FileObserverService.KEY_CMD_ARG, mFile.getStoragePath());
 277                 getActivity().startService(intent);
 278                 break;
 279             }
 280             case R.id.fdRenameBtn: {
 281                 EditNameFragment dialog = EditNameFragment.newInstance(mFile.getFileName());
 282                 dialog.show(getFragmentManager(), "nameeditdialog");
 283                 dialog.setOnDismissListener(this);
 284                 break;
 285             }
 286             case R.id.fdRemoveBtn: {
 287                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 288                         R.string.confirmation_remove_alert,
 289                         new String[]{mFile.getFileName()},
 290                         mFile.isDown() ? R.string.confirmation_remove_remote_and_local : R.string.confirmation_remove_remote,
 291                         mFile.isDown() ? R.string.confirmation_remove_local : -1,
 292                         R.string.common_cancel);
 293                 confDialog.setOnConfirmationListener(this);
 294                 confDialog.show(getFragmentManager(), FTAG_CONFIRMATION);
 295                 break;
 296             }
 297             case R.id.fdOpenBtn: {
 298                 String storagePath = mFile.getStoragePath();
 299                 String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 300                 try {
 301                     Intent i = new Intent(Intent.ACTION_VIEW);
 302                     i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mFile.getMimetype());
 303                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 304                     startActivity(i);
 305
 306                 } catch (Throwable t) {
 307                     Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mFile.getMimetype());
 308                     boolean toastIt = true;
 309                     String mimeType = "";
 310                     try {
 311                         Intent i = new Intent(Intent.ACTION_VIEW);
 312                         mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 313                         if (mimeType != null && !mimeType.equals(mFile.getMimetype())) {
 314                             i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 315                             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 316                             startActivity(i);
 317                             toastIt = false;
 318                         }
 319
 320                     } catch (IndexOutOfBoundsException e) {
 321                         Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 322
 323                     } catch (ActivityNotFoundException e) {
 324                         Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 325
 326                     } catch (Throwable th) {
 327                         Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 328
 329                     } finally {
 330                         if (toastIt) {
 331                             Toast.makeText(getActivity(), "There is no application to handle file " + mFile.getFileName(), Toast.LENGTH_SHORT).show();
 332                         }
 333                     }
 334
 335                 }
 336                 break;
 337             }
 338             default:
 339                 Log.e(TAG, "Incorrect view clicked!");
 340         }
 341
 342         /* else if (v.getId() == R.id.fdShareBtn) {
 343             Thread t = new Thread(new ShareRunnable(mFile.getRemotePath()));
 344             t.start();
 345         }*/
 346     }
 347
 348
 349     @Override
 350     public void onConfirmation(String callerTag) {
 351         if (callerTag.equals(FTAG_CONFIRMATION)) {
 352             FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 353             if (fdsm.getFileById(mFile.getFileId()) != null) {
 354                 new Thread(new RemoveRunnable(mFile, mAccount, new Handler())).start();
 355                 boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 356                 getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 357             }
 358         }
 359     }
 360
 361     @Override
 362     public void onNeutral(String callerTag) {
 363         FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 364         File f = null;
 365         if (mFile.isDown() && (f = new File(mFile.getStoragePath())).exists()) {
 366             f.delete();
 367             mFile.setStoragePath(null);
 368             fdsm.saveFile(mFile);
 369             updateFileDetails(mFile, mAccount);
 370         }
 371     }
 372
 373     @Override
 374     public void onCancel(String callerTag) {
 375         Log.d(TAG, "REMOVAL CANCELED");
 376     }
 377
 378
 379     /**
 380      * Check if the fragment was created with an empty layout. An empty fragment can't show file details, must be replaced.
 381      *
 382      * @return  True when the fragment was created with the empty layout.
 383      */
 384     public boolean isEmpty() {
 385         return mLayout == R.layout.file_details_empty;
 386     }
 387
 388
 389     /**
 390      * Can be used to get the file that is currently being displayed.
 391      * @return The file on the screen.
 392      */
 393     public OCFile getDisplayedFile(){
 394         return mFile;
 395     }
 396
 397     /**
 398      * Use this method to signal this Activity that it shall update its view.
 399      *
 400      * @param file : An {@link OCFile}
 401      */
 402     public void updateFileDetails(OCFile file, Account ocAccount) {
 403         mFile = file;
 404         mAccount = ocAccount;
 405         updateFileDetails();
 406     }
 407
 408
 409     /**
 410      * Updates the view with all relevant details about that file.
 411      */
 412     public void updateFileDetails() {
 413
 414         if (mFile != null && mAccount != null && mLayout == R.layout.file_details_fragment) {
 415
 416             // set file details
 417             setFilename(mFile.getFileName());
 418             setFiletype(DisplayUtils.convertMIMEtoPrettyPrint(mFile
 419                     .getMimetype()));
 420             setFilesize(mFile.getFileLength());
 421             if(ocVersionSupportsTimeCreated()){
 422                 setTimeCreated(mFile.getCreationTimestamp());
 423             }
 424
 425             setTimeModified(mFile.getModificationTimestamp());
 426
 427             CheckBox cb = (CheckBox)getView().findViewById(R.id.fdKeepInSync);
 428             cb.setChecked(mFile.keepInSync());
 429
 430             // configure UI for depending upon local state of the file
 431             if (FileDownloader.isDownloading(mAccount, mFile.getRemotePath()) || FileUploader.isUploading(mAccount, mFile.getRemotePath())) {
 432                 setButtonsForTransferring();
 433
 434             } else if (mFile.isDown()) {
 435                 // Update preview
 436                 if (mFile.getMimetype().startsWith("image/")) {
 437                     BitmapLoader bl = new BitmapLoader();
 438                     bl.execute(new String[]{mFile.getStoragePath()});
 439                 }
 440
 441                 setButtonsForDown();
 442
 443             } else {
 444                 setButtonsForRemote();
 445             }
 446         }
 447     }
 448
 449
 450     /**
 451      * Updates the filename in view
 452      * @param filename to set
 453      */
 454     private void setFilename(String filename) {
 455         TextView tv = (TextView) getView().findViewById(R.id.fdFilename);
 456         if (tv != null)
 457             tv.setText(filename);
 458     }
 459
 460     /**
 461      * Updates the MIME type in view
 462      * @param mimetype to set
 463      */
 464     private void setFiletype(String mimetype) {
 465         TextView tv = (TextView) getView().findViewById(R.id.fdType);
 466         if (tv != null)
 467             tv.setText(mimetype);
 468     }
 469
 470     /**
 471      * Updates the file size in view
 472      * @param filesize in bytes to set
 473      */
 474     private void setFilesize(long filesize) {
 475         TextView tv = (TextView) getView().findViewById(R.id.fdSize);
 476         if (tv != null)
 477             tv.setText(DisplayUtils.bytesToHumanReadable(filesize));
 478     }
 479
 480     /**
 481      * Updates the time that the file was created in view
 482      * @param milliseconds Unix time to set
 483      */
 484     private void setTimeCreated(long milliseconds){
 485         TextView tv = (TextView) getView().findViewById(R.id.fdCreated);
 486         TextView tvLabel = (TextView) getView().findViewById(R.id.fdCreatedLabel);
 487         if(tv != null){
 488             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 489             tv.setVisibility(View.VISIBLE);
 490             tvLabel.setVisibility(View.VISIBLE);
 491         }
 492     }
 493
 494     /**
 495      * Updates the time that the file was last modified
 496      * @param milliseconds Unix time to set
 497      */
 498     private void setTimeModified(long milliseconds){
 499         TextView tv = (TextView) getView().findViewById(R.id.fdModified);
 500         if(tv != null){
 501             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 502         }
 503     }
 504
 505     /**
 506      * Enables or disables buttons for a file being downloaded
 507      */
 508     private void setButtonsForTransferring() {
 509         if (!isEmpty()) {
 510             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 511             //downloadButton.setText(R.string.filedetails_download_in_progress);    // ugly
 512             downloadButton.setEnabled(false);   // TODO replace it with a 'cancel download' button
 513
 514             // let's protect the user from himself ;)
 515             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 516             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(false);
 517             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(false);
 518         }
 519     }
 520
 521     /**
 522      * Enables or disables buttons for a file locally available
 523      */
 524     private void setButtonsForDown() {
 525         if (!isEmpty()) {
 526             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 527             //downloadButton.setText(R.string.filedetails_redownload);      // ugly
 528             downloadButton.setEnabled(true);
 529
 530             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(true);
 531             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 532             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 533         }
 534     }
 535
 536     /**
 537      * Enables or disables buttons for a file not locally available
 538      */
 539     private void setButtonsForRemote() {
 540         if (!isEmpty()) {
 541             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 542             //downloadButton.setText(R.string.filedetails_download);    // unnecessary
 543             downloadButton.setEnabled(true);
 544
 545             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 546             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 547             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 548         }
 549     }
 550
 551
 552     /**
 553      * In ownCloud 3.X.X and 4.X.X there is a bug that SabreDAV does not return
 554      * the time that the file was created. There is a chance that this will
 555      * be fixed in future versions. Use this method to check if this version of
 556      * ownCloud has this fix.
 557      * @return True, if ownCloud the ownCloud version is supporting creation time
 558      */
 559     private boolean ocVersionSupportsTimeCreated(){
 560         /*if(mAccount != null){
 561             AccountManager accManager = (AccountManager) getActivity().getSystemService(Context.ACCOUNT_SERVICE);
 562             OwnCloudVersion ocVersion = new OwnCloudVersion(accManager
 563                     .getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 564             if(ocVersion.compareTo(new OwnCloudVersion(0x030000)) < 0) {
 565                 return true;
 566             }
 567         }*/
 568         return false;
 569     }
 570
 571
 572     /**
 573      * Interface to implement by any Activity that includes some instance of FileDetailFragment
 574      *
 575      * @author David A. Velasco
 576      */
 577     public interface ContainerActivity {
 578
 579         /**
 580          * Callback method invoked when the detail fragment wants to notice its container
 581          * activity about a relevant state the file shown by the fragment.
 582          *
 583          * Added to notify to FileDisplayActivity about the need of refresh the files list.
 584          *
 585          * Currently called when:
 586          *  - a download is started;
 587          *  - a rename is completed;
 588          *  - a deletion is completed;
 589          *  - the 'inSync' flag is changed;
 590          */
 591         public void onFileStateChanged();
 592
 593     }
 594
 595
 596     /**
 597      * Once the file download has finished -> update view
 598      * @author Bartek Przybylski
 599      */
 600     private class DownloadFinishReceiver extends BroadcastReceiver {
 601         @Override
 602         public void onReceive(Context context, Intent intent) {
 603             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
 604
 605             if (!isEmpty() && accountName.equals(mAccount.name)) {
 606                 boolean downloadWasFine = intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false);
 607                 String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
 608                 if (mFile.getRemotePath().equals(downloadedRemotePath)) {
 609                     if (downloadWasFine) {
 610                         mFile.setStoragePath(intent.getStringExtra(FileDownloader.EXTRA_FILE_PATH));    // updates the local object without accessing the database again
 611                     }
 612                     updateFileDetails();    // it updates the buttons; must be called although !downloadWasFine
 613                 }
 614             }
 615         }
 616     }
 617
 618
 619     /**
 620      * Once the file upload has finished -> update view
 621      *
 622      * Being notified about the finish of an upload is necessary for the next sequence:
 623      *   1. Upload a big file.
 624      *   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
 625      *      of its containing folder; the the server includes it in the PROPFIND requests although it's not fully upload.
 626      *   3. Click the file in the list to see its details.
 627      *   4. Wait for the upload finishes; at this moment, the details view must be refreshed to enable the action buttons.
 628      */
 629     private class UploadFinishReceiver extends BroadcastReceiver {
 630         @Override
 631         public void onReceive(Context context, Intent intent) {
 632             String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
 633
 634             if (!isEmpty() && accountName.equals(mAccount.name)) {
 635                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
 636                 String uploadRemotePath = intent.getStringExtra(FileUploader.EXTRA_REMOTE_PATH);
 637                 if (mFile.getRemotePath().equals(uploadRemotePath)) {
 638                     if (uploadWasFine) {
 639                         FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());
 640                         mFile = fdsm.getFileByPath(mFile.getRemotePath());
 641                     }
 642                     updateFileDetails();    // it updates the buttons; must be called although !uploadWasFine; interrupted uploads still leave an incomplete file in the server
 643                 }
 644             }
 645         }
 646     }
 647
 648
 649     // this is a temporary class for sharing purposes, it need to be replaced in transfer service
 650     private class ShareRunnable implements Runnable {
 651         private String mPath;
 652
 653         public ShareRunnable(String path) {
 654             mPath = path;
 655         }
 656
 657         public void run() {
 658             AccountManager am = AccountManager.get(getActivity());
 659             Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 660             OwnCloudVersion ocv = new OwnCloudVersion(am.getUserData(account, AccountAuthenticator.KEY_OC_VERSION));
 661             String url = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + AccountUtils.getWebdavPath(ocv);
 662
 663             Log.d("share", "sharing for version " + ocv.toString());
 664
 665             if (ocv.compareTo(new OwnCloudVersion(0x040000)) >= 0) {
 666                 String APPS_PATH = "/apps/files_sharing/";
 667                 String SHARE_PATH = "ajax/share.php";
 668
 669                 String SHARED_PATH = "/apps/files_sharing/get.php?token=";
 670
 671                 final String WEBDAV_SCRIPT = "webdav.php";
 672                 final String WEBDAV_FILES_LOCATION = "/files/";
 673
 674                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(account, getActivity().getApplicationContext());
 675                 HttpConnectionManagerParams params = new HttpConnectionManagerParams();
 676                 params.setMaxConnectionsPerHost(wc.getHostConfiguration(), 5);
 677
 678                 //wc.getParams().setParameter("http.protocol.single-cookie-header", true);
 679                 //wc.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
 680
 681                 PostMethod post = new PostMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + APPS_PATH + SHARE_PATH);
 682
 683                 post.addRequestHeader("Content-type","application/x-www-form-urlencoded; charset=UTF-8" );
 684                 post.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 685                 List<NameValuePair> formparams = new ArrayList<NameValuePair>();
 686                 Log.d("share", mPath+"");
 687                 formparams.add(new BasicNameValuePair("sources",mPath));
 688                 formparams.add(new BasicNameValuePair("uid_shared_with", "public"));
 689                 formparams.add(new BasicNameValuePair("permissions", "0"));
 690                 post.setRequestEntity(new StringRequestEntity(URLEncodedUtils.format(formparams, HTTP.UTF_8)));
 691
 692                 int status;
 693                 try {
 694                     PropFindMethod find = new PropFindMethod(url+"/");
 695                     find.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 696                     Log.d("sharer", ""+ url+"/");
 697
 698                     for (org.apache.commons.httpclient.Header a : find.getRequestHeaders()) {
 699                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 700                     }
 701
 702                     int status2 = wc.executeMethod(find);
 703
 704                     Log.d("sharer", "propstatus "+status2);
 705
 706                     GetMethod get = new GetMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + "/");
 707                     get.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 708
 709                     status2 = wc.executeMethod(get);
 710
 711                     Log.d("sharer", "getstatus "+status2);
 712                     Log.d("sharer", "" + get.getResponseBodyAsString());
 713
 714                     for (org.apache.commons.httpclient.Header a : get.getResponseHeaders()) {
 715                         Log.d("sharer", a.getName() + ":"+a.getValue());
 716                     }
 717
 718                     status = wc.executeMethod(post);
 719                     for (org.apache.commons.httpclient.Header a : post.getRequestHeaders()) {
 720                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 721                     }
 722                     for (org.apache.commons.httpclient.Header a : post.getResponseHeaders()) {
 723                         Log.d("sharer", a.getName() + ":"+a.getValue());
 724                     }
 725                     String resp = post.getResponseBodyAsString();
 726                     Log.d("share", ""+post.getURI().toString());
 727                     Log.d("share", "returned status " + status);
 728                     Log.d("share", " " +resp);
 729
 730                     if(status != HttpStatus.SC_OK ||resp == null || resp.equals("") || resp.startsWith("false")) {
 731                         return;
 732                      }
 733
 734                     JSONObject jsonObject = new JSONObject (resp);
 735                     String jsonStatus = jsonObject.getString("status");
 736                     if(!jsonStatus.equals("success")) throw new Exception("Error while sharing file status != success");
 737
 738                     String token = jsonObject.getString("data");
 739                     String uri = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + SHARED_PATH + token;
 740                     Log.d("Actions:shareFile ok", "url: " + uri);
 741
 742                 } catch (HttpException e) {
 743                     // TODO Auto-generated catch block
 744                     e.printStackTrace();
 745                 } catch (IOException e) {
 746                     // TODO Auto-generated catch block
 747                     e.printStackTrace();
 748                 } catch (JSONException e) {
 749                     // TODO Auto-generated catch block
 750                     e.printStackTrace();
 751                 } catch (Exception e) {
 752                     // TODO Auto-generated catch block
 753                     e.printStackTrace();
 754                 }
 755
 756             } else if (ocv.compareTo(new OwnCloudVersion(0x030000)) >= 0) {
 757
 758             }
 759         }
 760     }
 761
 762     public void onDismiss(EditNameFragment dialog) {
 763         if (dialog instanceof EditNameFragment) {
 764             if (((EditNameFragment)dialog).getResult()) {
 765                 String newFilename = ((EditNameFragment)dialog).getNewFilename();
 766                 Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 767                 if (!newFilename.equals(mFile.getFileName())) {
 768                     FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 769                     if (fdsm.getFileById(mFile.getFileId()) != null) {
 770                         OCFile newFile = new OCFile(fdsm.getFileById(mFile.getParentId()).getRemotePath() + newFilename);
 771                         newFile.setCreationTimestamp(mFile.getCreationTimestamp());
 772                         newFile.setFileId(mFile.getFileId());
 773                         newFile.setFileLength(mFile.getFileLength());
 774                         newFile.setKeepInSync(mFile.keepInSync());
 775                         newFile.setLastSyncDate(mFile.getLastSyncDate());
 776                         newFile.setMimetype(mFile.getMimetype());
 777                         newFile.setModificationTimestamp(mFile.getModificationTimestamp());
 778                         newFile.setParentId(mFile.getParentId());
 779                         boolean localRenameFails = false;
 780                         if (mFile.isDown()) {
 781                             File f = new File(mFile.getStoragePath());
 782                             Log.e(TAG, f.getAbsolutePath());
 783                             localRenameFails = !(f.renameTo(new File(f.getParent() + File.separator + newFilename)));
 784                             Log.e(TAG, f.getParent() + File.separator + newFilename);
 785                             newFile.setStoragePath(f.getParent() + File.separator + newFilename);
 786                         }
 787
 788                         if (localRenameFails) {
 789                             Toast msg = Toast.makeText(getActivity(), R.string.rename_local_fail_msg, Toast.LENGTH_LONG);
 790                             msg.show();
 791
 792                         } else {
 793                             new Thread(new RenameRunnable(mFile, newFile, mAccount, new Handler())).start();
 794                             boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 795                             getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 796                         }
 797
 798                     }
 799                 }
 800             }
 801         } else {
 802             Log.e(TAG, "Unknown dialog instance passed to onDismissDalog: " + dialog.getClass().getCanonicalName());
 803         }
 804
 805     }
 806
 807     private class RenameRunnable implements Runnable {
 808
 809         Account mAccount;
 810         OCFile mOld, mNew;
 811         Handler mHandler;
 812
 813         public RenameRunnable(OCFile oldFile, OCFile newFile, Account account, Handler handler) {
 814             mOld = oldFile;
 815             mNew = newFile;
 816             mAccount = account;
 817             mHandler = handler;
 818         }
 819
 820         public void run() {
 821             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());
 822             AccountManager am = AccountManager.get(getSherlockActivity());
 823             String baseUrl = am.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL);
 824             OwnCloudVersion ocv = new OwnCloudVersion(am.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 825             String webdav_path = AccountUtils.getWebdavPath(ocv);
 826             Log.d("ASD", ""+baseUrl + webdav_path + WebdavUtils.encodePath(mOld.getRemotePath()));
 827
 828             Log.e("ASD", Uri.parse(baseUrl).getPath() == null ? "" : Uri.parse(baseUrl).getPath() + webdav_path + WebdavUtils.encodePath(mNew.getRemotePath()));
 829             LocalMoveMethod move = new LocalMoveMethod(baseUrl + webdav_path + WebdavUtils.encodePath(mOld.getRemotePath()),
 830                                              Uri.parse(baseUrl).getPath() == null ? "" : Uri.parse(baseUrl).getPath() + webdav_path + WebdavUtils.encodePath(mNew.getRemotePath()));
 831
 832             boolean success = false;
 833             try {
 834                 int status = wc.executeMethod(move);
 835                 success = move.succeeded();
 836                 move.getResponseBodyAsString(); // exhaust response, although not interesting
 837                 Log.d(TAG, "Move returned status: " + status);
 838
 839             } catch (HttpException e) {
 840                 Log.e(TAG, "HTTP Exception renaming file " + mOld.getRemotePath() + " to " + mNew.getRemotePath(), e);
 841
 842             } catch (IOException e) {
 843                 Log.e(TAG, "I/O Exception renaming file " + mOld.getRemotePath() + " to " + mNew.getRemotePath(), e);
 844
 845             } catch (Exception e) {
 846                 Log.e(TAG, "Unexpected exception renaming file " + mOld.getRemotePath() + " to " + mNew.getRemotePath(), e);
 847
 848             } finally {
 849                move.releaseConnection();
 850             }
 851
 852             if (success) {
 853                 FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 854                 fdsm.removeFile(mOld, false);
 855                 fdsm.saveFile(mNew);
 856                 mFile = mNew;
 857                 mHandler.post(new Runnable() {
 858                     @Override
 859                     public void run() {
 860                         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 861                         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 862                         updateFileDetails(mFile, mAccount);
 863                         mContainerActivity.onFileStateChanged();
 864                     }
 865                 });
 866
 867             } else {
 868                 mHandler.post(new Runnable() {
 869                     @Override
 870                     public void run() {
 871                         // undo the local rename
 872                         if (mNew.isDown()) {
 873                             File f = new File(mNew.getStoragePath());
 874                             if (!f.renameTo(new File(mOld.getStoragePath()))) {
 875                                 // the local rename undoing failed; last chance: save the new local storage path in the old file
 876                                 mFile.setStoragePath(mNew.getStoragePath());
 877                                 FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 878                                 fdsm.saveFile(mFile);
 879                             }
 880                         }
 881                         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 882                         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 883                         try {
 884                             Toast msg = Toast.makeText(getActivity(), R.string.rename_server_fail_msg, Toast.LENGTH_LONG);
 885                             msg.show();
 886
 887                         } catch (NotFoundException e) {
 888                             e.printStackTrace();
 889                         }
 890                     }
 891                 });
 892             }
 893         }
 894         private class LocalMoveMethod extends DavMethodBase {
 895
 896             public LocalMoveMethod(String uri, String dest) {
 897                 super(uri);
 898                 addRequestHeader(new org.apache.commons.httpclient.Header("Destination", dest));
 899             }
 900
 901             @Override
 902             public String getName() {
 903                 return "MOVE";
 904             }
 905
 906             @Override
 907             protected boolean isSuccess(int status) {
 908                 return status == 201 || status == 204;
 909             }
 910
 911         }
 912     }
 913
 914     private static class EditNameFragment extends SherlockDialogFragment implements OnClickListener {
 915
 916         private String mNewFilename;
 917         private boolean mResult;
 918         private FileDetailFragment mListener;
 919
 920         static public EditNameFragment newInstance(String filename) {
 921             EditNameFragment f = new EditNameFragment();
 922             Bundle args = new Bundle();
 923             args.putString("filename", filename);
 924             f.setArguments(args);
 925             return f;
 926         }
 927
 928         @Override
 929         public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 930             View v = inflater.inflate(R.layout.edit_box_dialog, container, false);
 931
 932             String currentName = getArguments().getString("filename");
 933             if (currentName == null)
 934                 currentName = "";
 935
 936             ((Button)v.findViewById(R.id.cancel)).setOnClickListener(this);
 937             ((Button)v.findViewById(R.id.ok)).setOnClickListener(this);
 938             ((TextView)v.findViewById(R.id.user_input)).setText(currentName);
 939             ((TextView)v.findViewById(R.id.user_input)).requestFocus();
 940             getDialog().getWindow().setSoftInputMode(LayoutParams.SOFT_INPUT_STATE_VISIBLE);
 941
 942             mResult = false;
 943             return v;
 944         }
 945
 946         @Override
 947         public void onClick(View view) {
 948             switch (view.getId()) {
 949                 case R.id.ok: {
 950                     mNewFilename = ((TextView)getView().findViewById(R.id.user_input)).getText().toString();
 951                     mResult = true;
 952                 }
 953                 case R.id.cancel: { // fallthought
 954                     dismiss();
 955                     mListener.onDismiss(this);
 956                 }
 957             }
 958         }
 959
 960         void setOnDismissListener(FileDetailFragment listener) {
 961             mListener = listener;
 962         }
 963
 964         public String getNewFilename() {
 965             return mNewFilename;
 966         }
 967
 968         // true if user click ok
 969         public boolean getResult() {
 970             return mResult;
 971         }
 972
 973     }
 974
 975     private class RemoveRunnable implements Runnable {
 976
 977         Account mAccount;
 978         OCFile mFileToRemove;
 979         Handler mHandler;
 980
 981         public RemoveRunnable(OCFile fileToRemove, Account account, Handler handler) {
 982             mFileToRemove = fileToRemove;
 983             mAccount = account;
 984             mHandler = handler;
 985         }
 986
 987         public void run() {
 988             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());
 989             AccountManager am = AccountManager.get(getSherlockActivity());
 990             String baseUrl = am.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL);
 991             OwnCloudVersion ocv = new OwnCloudVersion(am.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 992             String webdav_path = AccountUtils.getWebdavPath(ocv);
 993             Log.d("ASD", ""+baseUrl + webdav_path + WebdavUtils.encodePath(mFileToRemove.getRemotePath()));
 994
 995             DeleteMethod delete = new DeleteMethod(baseUrl + webdav_path + WebdavUtils.encodePath(mFileToRemove.getRemotePath()));
 996
 997             boolean success = false;
 998             int status = -1;
 999             try {
1000                 status = wc.executeMethod(delete);
1001                 success = (delete.succeeded());
1002                 delete.getResponseBodyAsString();   // exhaust the response, although not interesting
1003                 Log.d(TAG, "Delete: returned status " + status);
1004
1005             } catch (HttpException e) {
1006                 Log.e(TAG, "HTTP Exception removing file " + mFileToRemove.getRemotePath(), e);
1007
1008             } catch (IOException e) {
1009                 Log.e(TAG, "I/O Exception removing file " + mFileToRemove.getRemotePath(), e);
1010
1011             } catch (Exception e) {
1012                 Log.e(TAG, "Unexpected exception removing file " + mFileToRemove.getRemotePath(), e);
1013
1014             } finally {
1015                 delete.releaseConnection();
1016             }
1017
1018             if (success) {
1019                 FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
1020                 fdsm.removeFile(mFileToRemove, true);
1021                 mHandler.post(new Runnable() {
1022                     @Override
1023                     public void run() {
1024                         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
1025                         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
1026                         try {
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
1036                             } else {
1037                                 getActivity().finish();
1038                             }
1039
1040                         } catch (NotFoundException e) {
1041                             e.printStackTrace();
1042                         }
1043                     }
1044                 });
1045
1046             } else {
1047                 mHandler.post(new Runnable() {
1048                     @Override
1049                     public void run() {
1050                         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
1051                         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
1052                         try {
1053                             Toast msg = Toast.makeText(getActivity(), R.string.remove_fail_msg, Toast.LENGTH_LONG);
1054                             msg.show();
1055
1056                         } catch (NotFoundException e) {
1057                             e.printStackTrace();
1058                         }
1059                     }
1060                 });
1061             }
1062         }
1063
1064     }
1065
1066     class BitmapLoader extends AsyncTask<String, Void, Bitmap> {
1067         @SuppressLint({ "NewApi", "NewApi", "NewApi" }) // to avoid Lint errors since Android SDK r20
1068                 @Override
1069         protected Bitmap doInBackground(String... params) {
1070             Bitmap result = null;
1071             if (params.length != 1) return result;
1072             String storagePath = params[0];
1073             try {
1074
1075                 BitmapFactory.Options options = new Options();
1076                 options.inScaled = true;
1077                 options.inPurgeable = true;
1078                 options.inJustDecodeBounds = true;
1079                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
1080                     options.inPreferQualityOverSpeed = false;
1081                 }
1082                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
1083                     options.inMutable = false;
1084                 }
1085
1086                 result = BitmapFactory.decodeFile(storagePath, options);
1087                 options.inJustDecodeBounds = false;
1088
1089                 int width = options.outWidth;
1090                 int height = options.outHeight;
1091                 int scale = 1;
1092                 if (width >= 2048 || height >= 2048) {
1093                     scale = (int) Math.ceil((Math.ceil(Math.max(height, width) / 2048.)));
1094                     options.inSampleSize = scale;
1095                 }
1096                 Display display = getActivity().getWindowManager().getDefaultDisplay();
1097                 Point size = new Point();
1098                 int screenwidth;
1099                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB_MR2) {
1100                     display.getSize(size);
1101                     screenwidth = size.x;
1102                 } else {
1103                     screenwidth = display.getWidth();
1104                 }
1105
1106                 Log.e("ASD", "W " + width + " SW " + screenwidth);
1107
1108                 if (width > screenwidth) {
1109                     scale = (int) Math.ceil((float)width / screenwidth);
1110                     options.inSampleSize = scale;
1111                 }
1112
1113                 result = BitmapFactory.decodeFile(storagePath, options);
1114
1115                 Log.e("ASD", "W " + options.outWidth + " SW " + options.outHeight);
1116
1117             } catch (OutOfMemoryError e) {
1118                 result = null;
1119                 Log.e(TAG, "Out of memory occured for file with size " + storagePath);
1120
1121             } catch (NoSuchFieldError e) {
1122                 result = null;
1123                 Log.e(TAG, "Error from access to unexisting field despite protection " + storagePath);
1124
1125             } catch (Throwable t) {
1126                 result = null;
1127                 Log.e(TAG, "Unexpected error while creating image preview " + storagePath, t);
1128             }
1129             return result;
1130         }
1131         @Override
1132         protected void onPostExecute(Bitmap result) {
1133             if (result != null && mPreview != null) {
1134                 mPreview.setImageBitmap(result);
1135             }
1136         }
1137
1138     }
1139
1140
1141 }