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.network.OwnCloudClientUtils;
  85 import com.owncloud.android.ui.activity.FileDetailActivity;
  86 import com.owncloud.android.ui.activity.FileDisplayActivity;
  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                 /*
 271                 Intent intent = new Intent(getActivity().getApplicationContext(),
 272                                            FileObserverService.class);
 273                 intent.putExtra(FileObserverService.KEY_FILE_CMD,
 274                            (cb.isChecked()?
 275                                    FileObserverService.CMD_ADD_OBSERVED_FILE:
 276                                    FileObserverService.CMD_DEL_OBSERVED_FILE));
 277                 intent.putExtra(FileObserverService.KEY_CMD_ARG, mFile.getStoragePath());
 278                 getActivity().startService(intent);
 279                 */
 280                 break;
 281             }
 282             case R.id.fdRenameBtn: {
 283                 EditNameFragment dialog = EditNameFragment.newInstance(mFile.getFileName());
 284                 dialog.show(getFragmentManager(), "nameeditdialog");
 285                 dialog.setOnDismissListener(this);
 286                 break;
 287             }
 288             case R.id.fdRemoveBtn: {
 289                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 290                         R.string.confirmation_remove_alert,
 291                         new String[]{mFile.getFileName()},
 292                         mFile.isDown() ? R.string.confirmation_remove_remote_and_local : R.string.confirmation_remove_remote,
 293                         mFile.isDown() ? R.string.confirmation_remove_local : -1,
 294                         R.string.common_cancel);
 295                 confDialog.setOnConfirmationListener(this);
 296                 confDialog.show(getFragmentManager(), FTAG_CONFIRMATION);
 297                 break;
 298             }
 299             case R.id.fdOpenBtn: {
 300                 String storagePath = mFile.getStoragePath();
 301                 String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 302                 try {
 303                     Intent i = new Intent(Intent.ACTION_VIEW);
 304                     i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mFile.getMimetype());
 305                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 306                     startActivity(i);
 307
 308                 } catch (Throwable t) {
 309                     Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mFile.getMimetype());
 310                     boolean toastIt = true;
 311                     String mimeType = "";
 312                     try {
 313                         Intent i = new Intent(Intent.ACTION_VIEW);
 314                         mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 315                         if (mimeType != null && !mimeType.equals(mFile.getMimetype())) {
 316                             i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 317                             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 318                             startActivity(i);
 319                             toastIt = false;
 320                         }
 321
 322                     } catch (IndexOutOfBoundsException e) {
 323                         Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 324
 325                     } catch (ActivityNotFoundException e) {
 326                         Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 327
 328                     } catch (Throwable th) {
 329                         Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 330
 331                     } finally {
 332                         if (toastIt) {
 333                             Toast.makeText(getActivity(), "There is no application to handle file " + mFile.getFileName(), Toast.LENGTH_SHORT).show();
 334                         }
 335                     }
 336
 337                 }
 338                 break;
 339             }
 340             default:
 341                 Log.e(TAG, "Incorrect view clicked!");
 342         }
 343
 344         /* else if (v.getId() == R.id.fdShareBtn) {
 345             Thread t = new Thread(new ShareRunnable(mFile.getRemotePath()));
 346             t.start();
 347         }*/
 348     }
 349
 350
 351     @Override
 352     public void onConfirmation(String callerTag) {
 353         if (callerTag.equals(FTAG_CONFIRMATION)) {
 354             FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 355             if (fdsm.getFileById(mFile.getFileId()) != null) {
 356                 new Thread(new RemoveRunnable(mFile, mAccount, new Handler())).start();
 357                 boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 358                 getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 359             }
 360         }
 361     }
 362
 363     @Override
 364     public void onNeutral(String callerTag) {
 365         FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 366         File f = null;
 367         if (mFile.isDown() && (f = new File(mFile.getStoragePath())).exists()) {
 368             f.delete();
 369             mFile.setStoragePath(null);
 370             fdsm.saveFile(mFile);
 371             updateFileDetails(mFile, mAccount);
 372         }
 373     }
 374
 375     @Override
 376     public void onCancel(String callerTag) {
 377         Log.d(TAG, "REMOVAL CANCELED");
 378     }
 379
 380
 381     /**
 382      * Check if the fragment was created with an empty layout. An empty fragment can't show file details, must be replaced.
 383      *
 384      * @return  True when the fragment was created with the empty layout.
 385      */
 386     public boolean isEmpty() {
 387         return mLayout == R.layout.file_details_empty;
 388     }
 389
 390
 391     /**
 392      * Can be used to get the file that is currently being displayed.
 393      * @return The file on the screen.
 394      */
 395     public OCFile getDisplayedFile(){
 396         return mFile;
 397     }
 398
 399     /**
 400      * Use this method to signal this Activity that it shall update its view.
 401      *
 402      * @param file : An {@link OCFile}
 403      */
 404     public void updateFileDetails(OCFile file, Account ocAccount) {
 405         mFile = file;
 406         mAccount = ocAccount;
 407         updateFileDetails();
 408     }
 409
 410
 411     /**
 412      * Updates the view with all relevant details about that file.
 413      */
 414     public void updateFileDetails() {
 415
 416         if (mFile != null && mAccount != null && mLayout == R.layout.file_details_fragment) {
 417
 418             // set file details
 419             setFilename(mFile.getFileName());
 420             setFiletype(DisplayUtils.convertMIMEtoPrettyPrint(mFile
 421                     .getMimetype()));
 422             setFilesize(mFile.getFileLength());
 423             if(ocVersionSupportsTimeCreated()){
 424                 setTimeCreated(mFile.getCreationTimestamp());
 425             }
 426
 427             setTimeModified(mFile.getModificationTimestamp());
 428
 429             CheckBox cb = (CheckBox)getView().findViewById(R.id.fdKeepInSync);
 430             cb.setChecked(mFile.keepInSync());
 431
 432             // configure UI for depending upon local state of the file
 433             if (FileDownloader.isDownloading(mAccount, mFile.getRemotePath()) || FileUploader.isUploading(mAccount, mFile.getRemotePath())) {
 434                 setButtonsForTransferring();
 435
 436             } else if (mFile.isDown()) {
 437                 // Update preview
 438                 if (mFile.getMimetype().startsWith("image/")) {
 439                     BitmapLoader bl = new BitmapLoader();
 440                     bl.execute(new String[]{mFile.getStoragePath()});
 441                 }
 442
 443                 setButtonsForDown();
 444
 445             } else {
 446                 setButtonsForRemote();
 447             }
 448         }
 449     }
 450
 451
 452     /**
 453      * Updates the filename in view
 454      * @param filename to set
 455      */
 456     private void setFilename(String filename) {
 457         TextView tv = (TextView) getView().findViewById(R.id.fdFilename);
 458         if (tv != null)
 459             tv.setText(filename);
 460     }
 461
 462     /**
 463      * Updates the MIME type in view
 464      * @param mimetype to set
 465      */
 466     private void setFiletype(String mimetype) {
 467         TextView tv = (TextView) getView().findViewById(R.id.fdType);
 468         if (tv != null)
 469             tv.setText(mimetype);
 470     }
 471
 472     /**
 473      * Updates the file size in view
 474      * @param filesize in bytes to set
 475      */
 476     private void setFilesize(long filesize) {
 477         TextView tv = (TextView) getView().findViewById(R.id.fdSize);
 478         if (tv != null)
 479             tv.setText(DisplayUtils.bytesToHumanReadable(filesize));
 480     }
 481
 482     /**
 483      * Updates the time that the file was created in view
 484      * @param milliseconds Unix time to set
 485      */
 486     private void setTimeCreated(long milliseconds){
 487         TextView tv = (TextView) getView().findViewById(R.id.fdCreated);
 488         TextView tvLabel = (TextView) getView().findViewById(R.id.fdCreatedLabel);
 489         if(tv != null){
 490             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 491             tv.setVisibility(View.VISIBLE);
 492             tvLabel.setVisibility(View.VISIBLE);
 493         }
 494     }
 495
 496     /**
 497      * Updates the time that the file was last modified
 498      * @param milliseconds Unix time to set
 499      */
 500     private void setTimeModified(long milliseconds){
 501         TextView tv = (TextView) getView().findViewById(R.id.fdModified);
 502         if(tv != null){
 503             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 504         }
 505     }
 506
 507     /**
 508      * Enables or disables buttons for a file being downloaded
 509      */
 510     private void setButtonsForTransferring() {
 511         if (!isEmpty()) {
 512             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 513             //downloadButton.setText(R.string.filedetails_download_in_progress);    // ugly
 514             downloadButton.setEnabled(false);   // TODO replace it with a 'cancel download' button
 515
 516             // let's protect the user from himself ;)
 517             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 518             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(false);
 519             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(false);
 520         }
 521     }
 522
 523     /**
 524      * Enables or disables buttons for a file locally available
 525      */
 526     private void setButtonsForDown() {
 527         if (!isEmpty()) {
 528             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 529             //downloadButton.setText(R.string.filedetails_redownload);      // ugly
 530             downloadButton.setEnabled(true);
 531
 532             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(true);
 533             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 534             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 535         }
 536     }
 537
 538     /**
 539      * Enables or disables buttons for a file not locally available
 540      */
 541     private void setButtonsForRemote() {
 542         if (!isEmpty()) {
 543             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 544             //downloadButton.setText(R.string.filedetails_download);    // unnecessary
 545             downloadButton.setEnabled(true);
 546
 547             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 548             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 549             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 550         }
 551     }
 552
 553
 554     /**
 555      * In ownCloud 3.X.X and 4.X.X there is a bug that SabreDAV does not return
 556      * the time that the file was created. There is a chance that this will
 557      * be fixed in future versions. Use this method to check if this version of
 558      * ownCloud has this fix.
 559      * @return True, if ownCloud the ownCloud version is supporting creation time
 560      */
 561     private boolean ocVersionSupportsTimeCreated(){
 562         /*if(mAccount != null){
 563             AccountManager accManager = (AccountManager) getActivity().getSystemService(Context.ACCOUNT_SERVICE);
 564             OwnCloudVersion ocVersion = new OwnCloudVersion(accManager
 565                     .getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 566             if(ocVersion.compareTo(new OwnCloudVersion(0x030000)) < 0) {
 567                 return true;
 568             }
 569         }*/
 570         return false;
 571     }
 572
 573
 574     /**
 575      * Interface to implement by any Activity that includes some instance of FileDetailFragment
 576      *
 577      * @author David A. Velasco
 578      */
 579     public interface ContainerActivity {
 580
 581         /**
 582          * Callback method invoked when the detail fragment wants to notice its container
 583          * activity about a relevant state the file shown by the fragment.
 584          *
 585          * Added to notify to FileDisplayActivity about the need of refresh the files list.
 586          *
 587          * Currently called when:
 588          *  - a download is started;
 589          *  - a rename is completed;
 590          *  - a deletion is completed;
 591          *  - the 'inSync' flag is changed;
 592          */
 593         public void onFileStateChanged();
 594
 595     }
 596
 597
 598     /**
 599      * Once the file download has finished -> update view
 600      * @author Bartek Przybylski
 601      */
 602     private class DownloadFinishReceiver extends BroadcastReceiver {
 603         @Override
 604         public void onReceive(Context context, Intent intent) {
 605             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
 606
 607             if (!isEmpty() && accountName.equals(mAccount.name)) {
 608                 boolean downloadWasFine = intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false);
 609                 String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
 610                 if (mFile.getRemotePath().equals(downloadedRemotePath)) {
 611                     if (downloadWasFine) {
 612                         mFile.setStoragePath(intent.getStringExtra(FileDownloader.EXTRA_FILE_PATH));    // updates the local object without accessing the database again
 613                     }
 614                     updateFileDetails();    // it updates the buttons; must be called although !downloadWasFine
 615                 }
 616             }
 617         }
 618     }
 619
 620
 621     /**
 622      * Once the file upload has finished -> update view
 623      *
 624      * Being notified about the finish of an upload is necessary for the next sequence:
 625      *   1. Upload a big file.
 626      *   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
 627      *      of its containing folder; the the server includes it in the PROPFIND requests although it's not fully upload.
 628      *   3. Click the file in the list to see its details.
 629      *   4. Wait for the upload finishes; at this moment, the details view must be refreshed to enable the action buttons.
 630      */
 631     private class UploadFinishReceiver extends BroadcastReceiver {
 632         @Override
 633         public void onReceive(Context context, Intent intent) {
 634             String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
 635
 636             if (!isEmpty() && accountName.equals(mAccount.name)) {
 637                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
 638                 String uploadRemotePath = intent.getStringExtra(FileUploader.EXTRA_REMOTE_PATH);
 639                 if (mFile.getRemotePath().equals(uploadRemotePath)) {
 640                     if (uploadWasFine) {
 641                         FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());
 642                         mFile = fdsm.getFileByPath(mFile.getRemotePath());
 643                     }
 644                     updateFileDetails();    // it updates the buttons; must be called although !uploadWasFine; interrupted uploads still leave an incomplete file in the server
 645                 }
 646             }
 647         }
 648     }
 649
 650
 651     // this is a temporary class for sharing purposes, it need to be replaced in transfer service
 652     private class ShareRunnable implements Runnable {
 653         private String mPath;
 654
 655         public ShareRunnable(String path) {
 656             mPath = path;
 657         }
 658
 659         public void run() {
 660             AccountManager am = AccountManager.get(getActivity());
 661             Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 662             OwnCloudVersion ocv = new OwnCloudVersion(am.getUserData(account, AccountAuthenticator.KEY_OC_VERSION));
 663             String url = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + AccountUtils.getWebdavPath(ocv);
 664
 665             Log.d("share", "sharing for version " + ocv.toString());
 666
 667             if (ocv.compareTo(new OwnCloudVersion(0x040000)) >= 0) {
 668                 String APPS_PATH = "/apps/files_sharing/";
 669                 String SHARE_PATH = "ajax/share.php";
 670
 671                 String SHARED_PATH = "/apps/files_sharing/get.php?token=";
 672
 673                 final String WEBDAV_SCRIPT = "webdav.php";
 674                 final String WEBDAV_FILES_LOCATION = "/files/";
 675
 676                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(account, getActivity().getApplicationContext());
 677                 HttpConnectionManagerParams params = new HttpConnectionManagerParams();
 678                 params.setMaxConnectionsPerHost(wc.getHostConfiguration(), 5);
 679
 680                 //wc.getParams().setParameter("http.protocol.single-cookie-header", true);
 681                 //wc.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
 682
 683                 PostMethod post = new PostMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + APPS_PATH + SHARE_PATH);
 684
 685                 post.addRequestHeader("Content-type","application/x-www-form-urlencoded; charset=UTF-8" );
 686                 post.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 687                 List<NameValuePair> formparams = new ArrayList<NameValuePair>();
 688                 Log.d("share", mPath+"");
 689                 formparams.add(new BasicNameValuePair("sources",mPath));
 690                 formparams.add(new BasicNameValuePair("uid_shared_with", "public"));
 691                 formparams.add(new BasicNameValuePair("permissions", "0"));
 692                 post.setRequestEntity(new StringRequestEntity(URLEncodedUtils.format(formparams, HTTP.UTF_8)));
 693
 694                 int status;
 695                 try {
 696                     PropFindMethod find = new PropFindMethod(url+"/");
 697                     find.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 698                     Log.d("sharer", ""+ url+"/");
 699
 700                     for (org.apache.commons.httpclient.Header a : find.getRequestHeaders()) {
 701                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 702                     }
 703
 704                     int status2 = wc.executeMethod(find);
 705
 706                     Log.d("sharer", "propstatus "+status2);
 707
 708                     GetMethod get = new GetMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + "/");
 709                     get.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 710
 711                     status2 = wc.executeMethod(get);
 712
 713                     Log.d("sharer", "getstatus "+status2);
 714                     Log.d("sharer", "" + get.getResponseBodyAsString());
 715
 716                     for (org.apache.commons.httpclient.Header a : get.getResponseHeaders()) {
 717                         Log.d("sharer", a.getName() + ":"+a.getValue());
 718                     }
 719
 720                     status = wc.executeMethod(post);
 721                     for (org.apache.commons.httpclient.Header a : post.getRequestHeaders()) {
 722                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 723                     }
 724                     for (org.apache.commons.httpclient.Header a : post.getResponseHeaders()) {
 725                         Log.d("sharer", a.getName() + ":"+a.getValue());
 726                     }
 727                     String resp = post.getResponseBodyAsString();
 728                     Log.d("share", ""+post.getURI().toString());
 729                     Log.d("share", "returned status " + status);
 730                     Log.d("share", " " +resp);
 731
 732                     if(status != HttpStatus.SC_OK ||resp == null || resp.equals("") || resp.startsWith("false")) {
 733                         return;
 734                      }
 735
 736                     JSONObject jsonObject = new JSONObject (resp);
 737                     String jsonStatus = jsonObject.getString("status");
 738                     if(!jsonStatus.equals("success")) throw new Exception("Error while sharing file status != success");
 739
 740                     String token = jsonObject.getString("data");
 741                     String uri = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + SHARED_PATH + token;
 742                     Log.d("Actions:shareFile ok", "url: " + uri);
 743
 744                 } catch (HttpException e) {
 745                     // TODO Auto-generated catch block
 746                     e.printStackTrace();
 747                 } catch (IOException e) {
 748                     // TODO Auto-generated catch block
 749                     e.printStackTrace();
 750                 } catch (JSONException e) {
 751                     // TODO Auto-generated catch block
 752                     e.printStackTrace();
 753                 } catch (Exception e) {
 754                     // TODO Auto-generated catch block
 755                     e.printStackTrace();
 756                 }
 757
 758             } else if (ocv.compareTo(new OwnCloudVersion(0x030000)) >= 0) {
 759
 760             }
 761         }
 762     }
 763
 764     public void onDismiss(EditNameFragment dialog) {
 765         if (dialog instanceof EditNameFragment) {
 766             if (((EditNameFragment)dialog).getResult()) {
 767                 String newFilename = ((EditNameFragment)dialog).getNewFilename();
 768                 Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 769                 if (!newFilename.equals(mFile.getFileName())) {
 770                     FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 771                     if (fdsm.getFileById(mFile.getFileId()) != null) {
 772                         OCFile newFile = new OCFile(fdsm.getFileById(mFile.getParentId()).getRemotePath() + newFilename);
 773                         newFile.setCreationTimestamp(mFile.getCreationTimestamp());
 774                         newFile.setFileId(mFile.getFileId());
 775                         newFile.setFileLength(mFile.getFileLength());
 776                         newFile.setKeepInSync(mFile.keepInSync());
 777                         newFile.setLastSyncDate(mFile.getLastSyncDate());
 778                         newFile.setMimetype(mFile.getMimetype());
 779                         newFile.setModificationTimestamp(mFile.getModificationTimestamp());
 780                         newFile.setParentId(mFile.getParentId());
 781                         boolean localRenameFails = false;
 782                         if (mFile.isDown()) {
 783                             File f = new File(mFile.getStoragePath());
 784                             Log.e(TAG, f.getAbsolutePath());
 785                             localRenameFails = !(f.renameTo(new File(f.getParent() + File.separator + newFilename)));
 786                             Log.e(TAG, f.getParent() + File.separator + newFilename);
 787                             newFile.setStoragePath(f.getParent() + File.separator + newFilename);
 788                         }
 789
 790                         if (localRenameFails) {
 791                             Toast msg = Toast.makeText(getActivity(), R.string.rename_local_fail_msg, Toast.LENGTH_LONG);
 792                             msg.show();
 793
 794                         } else {
 795                             new Thread(new RenameRunnable(mFile, newFile, mAccount, new Handler())).start();
 796                             boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 797                             getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 798                         }
 799
 800                     }
 801                 }
 802             }
 803         } else {
 804             Log.e(TAG, "Unknown dialog instance passed to onDismissDalog: " + dialog.getClass().getCanonicalName());
 805         }
 806
 807     }
 808
 809     private class RenameRunnable implements Runnable {
 810
 811         Account mAccount;
 812         OCFile mOld, mNew;
 813         Handler mHandler;
 814
 815         public RenameRunnable(OCFile oldFile, OCFile newFile, Account account, Handler handler) {
 816             mOld = oldFile;
 817             mNew = newFile;
 818             mAccount = account;
 819             mHandler = handler;
 820         }
 821
 822         public void run() {
 823             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());
 824             AccountManager am = AccountManager.get(getSherlockActivity());
 825             String baseUrl = am.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL);
 826             OwnCloudVersion ocv = new OwnCloudVersion(am.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 827             String webdav_path = AccountUtils.getWebdavPath(ocv);
 828             Log.d("ASD", ""+baseUrl + webdav_path + WebdavUtils.encodePath(mOld.getRemotePath()));
 829
 830             Log.e("ASD", Uri.parse(baseUrl).getPath() == null ? "" : Uri.parse(baseUrl).getPath() + webdav_path + WebdavUtils.encodePath(mNew.getRemotePath()));
 831             LocalMoveMethod move = new LocalMoveMethod(baseUrl + webdav_path + WebdavUtils.encodePath(mOld.getRemotePath()),
 832                                              Uri.parse(baseUrl).getPath() == null ? "" : Uri.parse(baseUrl).getPath() + webdav_path + WebdavUtils.encodePath(mNew.getRemotePath()));
 833
 834             boolean success = false;
 835             try {
 836                 int status = wc.executeMethod(move);
 837                 success = move.succeeded();
 838                 move.getResponseBodyAsString(); // exhaust response, although not interesting
 839                 Log.d(TAG, "Move returned status: " + status);
 840
 841             } catch (HttpException e) {
 842                 Log.e(TAG, "HTTP Exception renaming file " + mOld.getRemotePath() + " to " + mNew.getRemotePath(), e);
 843
 844             } catch (IOException e) {
 845                 Log.e(TAG, "I/O Exception renaming file " + mOld.getRemotePath() + " to " + mNew.getRemotePath(), e);
 846
 847             } catch (Exception e) {
 848                 Log.e(TAG, "Unexpected exception renaming file " + mOld.getRemotePath() + " to " + mNew.getRemotePath(), e);
 849
 850             } finally {
 851                move.releaseConnection();
 852             }
 853
 854             if (success) {
 855                 FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 856                 fdsm.removeFile(mOld, false);
 857                 fdsm.saveFile(mNew);
 858                 mFile = mNew;
 859                 mHandler.post(new Runnable() {
 860                     @Override
 861                     public void run() {
 862                         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 863                         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 864                         updateFileDetails(mFile, mAccount);
 865                         mContainerActivity.onFileStateChanged();
 866                     }
 867                 });
 868
 869             } else {
 870                 mHandler.post(new Runnable() {
 871                     @Override
 872                     public void run() {
 873                         // undo the local rename
 874                         if (mNew.isDown()) {
 875                             File f = new File(mNew.getStoragePath());
 876                             if (!f.renameTo(new File(mOld.getStoragePath()))) {
 877                                 // the local rename undoing failed; last chance: save the new local storage path in the old file
 878                                 mFile.setStoragePath(mNew.getStoragePath());
 879                                 FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 880                                 fdsm.saveFile(mFile);
 881                             }
 882                         }
 883                         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 884                         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 885                         try {
 886                             Toast msg = Toast.makeText(getActivity(), R.string.rename_server_fail_msg, Toast.LENGTH_LONG);
 887                             msg.show();
 888
 889                         } catch (NotFoundException e) {
 890                             e.printStackTrace();
 891                         }
 892                     }
 893                 });
 894             }
 895         }
 896         private class LocalMoveMethod extends DavMethodBase {
 897
 898             public LocalMoveMethod(String uri, String dest) {
 899                 super(uri);
 900                 addRequestHeader(new org.apache.commons.httpclient.Header("Destination", dest));
 901             }
 902
 903             @Override
 904             public String getName() {
 905                 return "MOVE";
 906             }
 907
 908             @Override
 909             protected boolean isSuccess(int status) {
 910                 return status == 201 || status == 204;
 911             }
 912
 913         }
 914     }
 915
 916     private static class EditNameFragment extends SherlockDialogFragment implements OnClickListener {
 917
 918         private String mNewFilename;
 919         private boolean mResult;
 920         private FileDetailFragment mListener;
 921
 922         static public EditNameFragment newInstance(String filename) {
 923             EditNameFragment f = new EditNameFragment();
 924             Bundle args = new Bundle();
 925             args.putString("filename", filename);
 926             f.setArguments(args);
 927             return f;
 928         }
 929
 930         @Override
 931         public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 932             View v = inflater.inflate(R.layout.edit_box_dialog, container, false);
 933
 934             String currentName = getArguments().getString("filename");
 935             if (currentName == null)
 936                 currentName = "";
 937
 938             ((Button)v.findViewById(R.id.cancel)).setOnClickListener(this);
 939             ((Button)v.findViewById(R.id.ok)).setOnClickListener(this);
 940             ((TextView)v.findViewById(R.id.user_input)).setText(currentName);
 941             ((TextView)v.findViewById(R.id.user_input)).requestFocus();
 942             getDialog().getWindow().setSoftInputMode(LayoutParams.SOFT_INPUT_STATE_VISIBLE);
 943
 944             mResult = false;
 945             return v;
 946         }
 947
 948         @Override
 949         public void onClick(View view) {
 950             switch (view.getId()) {
 951                 case R.id.ok: {
 952                     mNewFilename = ((TextView)getView().findViewById(R.id.user_input)).getText().toString();
 953                     mResult = true;
 954                 }
 955                 case R.id.cancel: { // fallthought
 956                     dismiss();
 957                     mListener.onDismiss(this);
 958                 }
 959             }
 960         }
 961
 962         void setOnDismissListener(FileDetailFragment listener) {
 963             mListener = listener;
 964         }
 965
 966         public String getNewFilename() {
 967             return mNewFilename;
 968         }
 969
 970         // true if user click ok
 971         public boolean getResult() {
 972             return mResult;
 973         }
 974
 975     }
 976
 977     private class RemoveRunnable implements Runnable {
 978
 979         Account mAccount;
 980         OCFile mFileToRemove;
 981         Handler mHandler;
 982
 983         public RemoveRunnable(OCFile fileToRemove, Account account, Handler handler) {
 984             mFileToRemove = fileToRemove;
 985             mAccount = account;
 986             mHandler = handler;
 987         }
 988
 989         public void run() {
 990             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());
 991             AccountManager am = AccountManager.get(getSherlockActivity());
 992             String baseUrl = am.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL);
 993             OwnCloudVersion ocv = new OwnCloudVersion(am.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 994             String webdav_path = AccountUtils.getWebdavPath(ocv);
 995             Log.d("ASD", ""+baseUrl + webdav_path + WebdavUtils.encodePath(mFileToRemove.getRemotePath()));
 996
 997             DeleteMethod delete = new DeleteMethod(baseUrl + webdav_path + WebdavUtils.encodePath(mFileToRemove.getRemotePath()));
 998
 999             boolean success = false;
1000             int status = -1;
1001             try {
1002                 status = wc.executeMethod(delete);
1003                 success = (delete.succeeded());
1004                 delete.getResponseBodyAsString();   // exhaust the response, although not interesting
1005                 Log.d(TAG, "Delete: returned status " + status);
1006
1007             } catch (HttpException e) {
1008                 Log.e(TAG, "HTTP Exception removing file " + mFileToRemove.getRemotePath(), e);
1009
1010             } catch (IOException e) {
1011                 Log.e(TAG, "I/O Exception removing file " + mFileToRemove.getRemotePath(), e);
1012
1013             } catch (Exception e) {
1014                 Log.e(TAG, "Unexpected exception removing file " + mFileToRemove.getRemotePath(), e);
1015
1016             } finally {
1017                 delete.releaseConnection();
1018             }
1019
1020             if (success) {
1021                 FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
1022                 fdsm.removeFile(mFileToRemove, true);
1023                 mHandler.post(new Runnable() {
1024                     @Override
1025                     public void run() {
1026                         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
1027                         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
1028                         try {
1029                             Toast msg = Toast.makeText(getActivity().getApplicationContext(), R.string.remove_success_msg, Toast.LENGTH_LONG);
1030                             msg.show();
1031                             if (inDisplayActivity) {
1032                                 // double pane
1033                                 FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
1034                                 transaction.replace(R.id.file_details_container, new FileDetailFragment(null, null)); // empty FileDetailFragment
1035                                 transaction.commit();
1036                                 mContainerActivity.onFileStateChanged();
1037
1038                             } else {
1039                                 getActivity().finish();
1040                             }
1041
1042                         } catch (NotFoundException e) {
1043                             e.printStackTrace();
1044                         }
1045                     }
1046                 });
1047
1048             } else {
1049                 mHandler.post(new Runnable() {
1050                     @Override
1051                     public void run() {
1052                         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
1053                         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
1054                         try {
1055                             Toast msg = Toast.makeText(getActivity(), R.string.remove_fail_msg, Toast.LENGTH_LONG);
1056                             msg.show();
1057
1058                         } catch (NotFoundException e) {
1059                             e.printStackTrace();
1060                         }
1061                     }
1062                 });
1063             }
1064         }
1065
1066     }
1067
1068     class BitmapLoader extends AsyncTask<String, Void, Bitmap> {
1069         @SuppressLint({ "NewApi", "NewApi", "NewApi" }) // to avoid Lint errors since Android SDK r20
1070                 @Override
1071         protected Bitmap doInBackground(String... params) {
1072             Bitmap result = null;
1073             if (params.length != 1) return result;
1074             String storagePath = params[0];
1075             try {
1076
1077                 BitmapFactory.Options options = new Options();
1078                 options.inScaled = true;
1079                 options.inPurgeable = true;
1080                 options.inJustDecodeBounds = true;
1081                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
1082                     options.inPreferQualityOverSpeed = false;
1083                 }
1084                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
1085                     options.inMutable = false;
1086                 }
1087
1088                 result = BitmapFactory.decodeFile(storagePath, options);
1089                 options.inJustDecodeBounds = false;
1090
1091                 int width = options.outWidth;
1092                 int height = options.outHeight;
1093                 int scale = 1;
1094                 if (width >= 2048 || height >= 2048) {
1095                     scale = (int) Math.ceil((Math.ceil(Math.max(height, width) / 2048.)));
1096                     options.inSampleSize = scale;
1097                 }
1098                 Display display = getActivity().getWindowManager().getDefaultDisplay();
1099                 Point size = new Point();
1100                 int screenwidth;
1101                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB_MR2) {
1102                     display.getSize(size);
1103                     screenwidth = size.x;
1104                 } else {
1105                     screenwidth = display.getWidth();
1106                 }
1107
1108                 Log.e("ASD", "W " + width + " SW " + screenwidth);
1109
1110                 if (width > screenwidth) {
1111                     scale = (int) Math.ceil((float)width / screenwidth);
1112                     options.inSampleSize = scale;
1113                 }
1114
1115                 result = BitmapFactory.decodeFile(storagePath, options);
1116
1117                 Log.e("ASD", "W " + options.outWidth + " SW " + options.outHeight);
1118
1119             } catch (OutOfMemoryError e) {
1120                 result = null;
1121                 Log.e(TAG, "Out of memory occured for file with size " + storagePath);
1122
1123             } catch (NoSuchFieldError e) {
1124                 result = null;
1125                 Log.e(TAG, "Error from access to unexisting field despite protection " + storagePath);
1126
1127             } catch (Throwable t) {
1128                 result = null;
1129                 Log.e(TAG, "Unexpected error while creating image preview " + storagePath, t);
1130             }
1131             return result;
1132         }
1133         @Override
1134         protected void onPostExecute(Bitmap result) {
1135             if (result != null && mPreview != null) {
1136                 mPreview.setImageBitmap(result);
1137             }
1138         }
1139
1140     }
1141
1142
1143 }