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.JSONObject;
  39
  40 import android.accounts.Account;
  41 import android.accounts.AccountManager;
  42 import android.annotation.SuppressLint;
  43 import android.app.Activity;
  44 import android.content.ActivityNotFoundException;
  45 import android.content.BroadcastReceiver;
  46 import android.content.Context;
  47 import android.content.Intent;
  48 import android.content.IntentFilter;
  49 import android.content.res.Resources.NotFoundException;
  50 import android.graphics.Bitmap;
  51 import android.graphics.BitmapFactory;
  52 import android.graphics.BitmapFactory.Options;
  53 import android.graphics.Point;
  54 import android.net.Uri;
  55 import android.os.AsyncTask;
  56 import android.os.Bundle;
  57 import android.os.Handler;
  58 import android.support.v4.app.FragmentTransaction;
  59 import android.util.Log;
  60 import android.view.Display;
  61 import android.view.LayoutInflater;
  62 import android.view.View;
  63 import android.view.View.OnClickListener;
  64 import android.view.ViewGroup;
  65 import android.view.WindowManager.LayoutParams;
  66 import android.webkit.MimeTypeMap;
  67 import android.widget.Button;
  68 import android.widget.CheckBox;
  69 import android.widget.ImageView;
  70 import android.widget.TextView;
  71 import android.widget.Toast;
  72
  73 import com.actionbarsherlock.app.SherlockDialogFragment;
  74 import com.actionbarsherlock.app.SherlockFragment;
  75 import com.owncloud.android.AccountUtils;
  76 import com.owncloud.android.DisplayUtils;
  77 import com.owncloud.android.authenticator.AccountAuthenticator;
  78 import com.owncloud.android.datamodel.FileDataStorageManager;
  79 import com.owncloud.android.datamodel.OCFile;
  80 import com.owncloud.android.files.services.FileDownloader;
  81 import com.owncloud.android.files.services.FileUploader;
  82 import com.owncloud.android.network.OwnCloudClientUtils;
  83 import com.owncloud.android.ui.activity.FileDetailActivity;
  84 import com.owncloud.android.ui.activity.FileDisplayActivity;
  85 import com.owncloud.android.utils.OwnCloudVersion;
  86
  87 import com.owncloud.android.R;
  88 import eu.alefzero.webdav.WebdavClient;
  89 import eu.alefzero.webdav.WebdavUtils;
  90
  91 /**
  92  * This Fragment is used to display the details about a file.
  93  *
  94  * @author Bartek Przybylski
  95  *
  96  */
  97 public class FileDetailFragment extends SherlockFragment implements
  98         OnClickListener, ConfirmationDialogFragment.ConfirmationDialogFragmentListener {
  99
 100     public static final String EXTRA_FILE = "FILE";
 101     public static final String EXTRA_ACCOUNT = "ACCOUNT";
 102
 103     private FileDetailFragment.ContainerActivity mContainerActivity;
 104
 105     private int mLayout;
 106     private View mView;
 107     private OCFile mFile;
 108     private Account mAccount;
 109     private ImageView mPreview;
 110
 111     private DownloadFinishReceiver mDownloadFinishReceiver;
 112     private UploadFinishReceiver mUploadFinishReceiver;
 113
 114     private static final String TAG = "FileDetailFragment";
 115     public static final String FTAG = "FileDetails";
 116     public static final String FTAG_CONFIRMATION = "REMOVE_CONFIRMATION_FRAGMENT";
 117
 118
 119     /**
 120      * Creates an empty details fragment.
 121      *
 122      * It's necessary to keep a public constructor without parameters; the system uses it when tries to reinstantiate a fragment automatically.
 123      */
 124     public FileDetailFragment() {
 125         mFile = null;
 126         mAccount = null;
 127         mLayout = R.layout.file_details_empty;
 128     }
 129
 130
 131     /**
 132      * Creates a details fragment.
 133      *
 134      * When 'fileToDetail' or 'ocAccount' are null, creates a dummy layout (to use when a file wasn't tapped before).
 135      *
 136      * @param fileToDetail      An {@link OCFile} to show in the fragment
 137      * @param ocAccount         An ownCloud account; needed to start downloads
 138      */
 139     public FileDetailFragment(OCFile fileToDetail, Account ocAccount){
 140         mFile = fileToDetail;
 141         mAccount = ocAccount;
 142         mLayout = R.layout.file_details_empty;
 143
 144         if(fileToDetail != null && ocAccount != null) {
 145             mLayout = R.layout.file_details_fragment;
 146         }
 147     }
 148
 149
 150     /**
 151      * {@inheritDoc}
 152      */
 153     @Override
 154     public void onAttach(Activity activity) {
 155         super.onAttach(activity);
 156         try {
 157             mContainerActivity = (ContainerActivity) activity;
 158         } catch (ClassCastException e) {
 159             throw new ClassCastException(activity.toString() + " must implement FileListFragment.ContainerActivity");
 160         }
 161     }
 162
 163
 164     @Override
 165     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 166             Bundle savedInstanceState) {
 167         super.onCreateView(inflater, container, savedInstanceState);
 168
 169         if (savedInstanceState != null) {
 170             mFile = savedInstanceState.getParcelable(FileDetailFragment.EXTRA_FILE);
 171             mAccount = savedInstanceState.getParcelable(FileDetailFragment.EXTRA_ACCOUNT);
 172         }
 173
 174         View view = null;
 175         view = inflater.inflate(mLayout, container, false);
 176         mView = view;
 177
 178         if (mLayout == R.layout.file_details_fragment) {
 179             mView.findViewById(R.id.fdKeepInSync).setOnClickListener(this);
 180             mView.findViewById(R.id.fdRenameBtn).setOnClickListener(this);
 181             mView.findViewById(R.id.fdDownloadBtn).setOnClickListener(this);
 182             mView.findViewById(R.id.fdOpenBtn).setOnClickListener(this);
 183             mView.findViewById(R.id.fdRemoveBtn).setOnClickListener(this);
 184             //mView.findViewById(R.id.fdShareBtn).setOnClickListener(this);
 185             mPreview = (ImageView)mView.findViewById(R.id.fdPreview);
 186         }
 187
 188         updateFileDetails();
 189         return view;
 190     }
 191
 192
 193     @Override
 194     public void onSaveInstanceState(Bundle outState) {
 195         Log.i(getClass().toString(), "onSaveInstanceState() start");
 196         super.onSaveInstanceState(outState);
 197         outState.putParcelable(FileDetailFragment.EXTRA_FILE, mFile);
 198         outState.putParcelable(FileDetailFragment.EXTRA_ACCOUNT, mAccount);
 199         Log.i(getClass().toString(), "onSaveInstanceState() end");
 200     }
 201
 202
 203     @Override
 204     public void onResume() {
 205         super.onResume();
 206
 207         mDownloadFinishReceiver = new DownloadFinishReceiver();
 208         IntentFilter filter = new IntentFilter(
 209                 FileDownloader.DOWNLOAD_FINISH_MESSAGE);
 210         getActivity().registerReceiver(mDownloadFinishReceiver, filter);
 211
 212         mUploadFinishReceiver = new UploadFinishReceiver();
 213         filter = new IntentFilter(FileUploader.UPLOAD_FINISH_MESSAGE);
 214         getActivity().registerReceiver(mUploadFinishReceiver, filter);
 215
 216         mPreview = (ImageView)mView.findViewById(R.id.fdPreview);
 217     }
 218
 219     @Override
 220     public void onPause() {
 221         super.onPause();
 222
 223         getActivity().unregisterReceiver(mDownloadFinishReceiver);
 224         mDownloadFinishReceiver = null;
 225
 226         getActivity().unregisterReceiver(mUploadFinishReceiver);
 227         mUploadFinishReceiver = null;
 228
 229         if (mPreview != null) {
 230             mPreview = null;
 231         }
 232     }
 233
 234     @Override
 235     public View getView() {
 236         return super.getView() == null ? mView : super.getView();
 237     }
 238
 239
 240
 241     @Override
 242     public void onClick(View v) {
 243         switch (v.getId()) {
 244             case R.id.fdDownloadBtn: {
 245                 if (FileDownloader.isDownloading(mAccount, mFile.getRemotePath())) {
 246
 247                     // TODO cancelar descarga
 248
 249                     if (mFile.isDown()) {
 250                         setButtonsForDown();
 251                     } else {
 252                         setButtonsForRemote();
 253                     }
 254
 255                 } else {
 256                     Intent i = new Intent(getActivity(), FileDownloader.class);
 257                     i.putExtra(FileDownloader.EXTRA_ACCOUNT, mAccount);
 258                     i.putExtra(FileDownloader.EXTRA_REMOTE_PATH, mFile.getRemotePath());
 259                     i.putExtra(FileDownloader.EXTRA_FILE_PATH, mFile.getRemotePath());
 260                     i.putExtra(FileDownloader.EXTRA_FILE_SIZE, mFile.getFileLength());
 261
 262                     // update ui
 263                     setButtonsForTransferring();
 264
 265                     getActivity().startService(i);
 266                     mContainerActivity.onFileStateChanged();    // this is not working; it is performed before the fileDownloadService registers it as 'in progress'
 267                 }
 268                 break;
 269             }
 270             case R.id.fdKeepInSync: {
 271                 CheckBox cb = (CheckBox) getView().findViewById(R.id.fdKeepInSync);
 272                 mFile.setKeepInSync(cb.isChecked());
 273                 FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());
 274                 fdsm.saveFile(mFile);
 275                 if (mFile.keepInSync()) {
 276                     onClick(getView().findViewById(R.id.fdDownloadBtn));
 277                 } else {
 278                     mContainerActivity.onFileStateChanged();    // put inside 'else' to not call it twice (here, and in the virtual click on fdDownloadBtn)
 279                 }
 280                 /*
 281                 Intent intent = new Intent(getActivity().getApplicationContext(),
 282                                            FileObserverService.class);
 283                 intent.putExtra(FileObserverService.KEY_FILE_CMD,
 284                            (cb.isChecked()?
 285                                    FileObserverService.CMD_ADD_OBSERVED_FILE:
 286                                    FileObserverService.CMD_DEL_OBSERVED_FILE));
 287                 intent.putExtra(FileObserverService.KEY_CMD_ARG, mFile.getStoragePath());
 288                 getActivity().startService(intent);
 289                 */
 290                 break;
 291             }
 292             case R.id.fdRenameBtn: {
 293                 EditNameFragment dialog = EditNameFragment.newInstance(mFile.getFileName());
 294                 dialog.show(getFragmentManager(), "nameeditdialog");
 295                 dialog.setOnDismissListener(this);
 296                 break;
 297             }
 298             case R.id.fdRemoveBtn: {
 299                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 300                         R.string.confirmation_remove_alert,
 301                         new String[]{mFile.getFileName()},
 302                         mFile.isDown() ? R.string.confirmation_remove_remote_and_local : R.string.confirmation_remove_remote,
 303                         mFile.isDown() ? R.string.confirmation_remove_local : -1,
 304                         R.string.common_cancel);
 305                 confDialog.setOnConfirmationListener(this);
 306                 confDialog.show(getFragmentManager(), FTAG_CONFIRMATION);
 307                 break;
 308             }
 309             case R.id.fdOpenBtn: {
 310                 String storagePath = mFile.getStoragePath();
 311                 String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 312                 try {
 313                     Intent i = new Intent(Intent.ACTION_VIEW);
 314                     i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mFile.getMimetype());
 315                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 316                     startActivity(i);
 317
 318                 } catch (Throwable t) {
 319                     Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mFile.getMimetype());
 320                     boolean toastIt = true;
 321                     String mimeType = "";
 322                     try {
 323                         Intent i = new Intent(Intent.ACTION_VIEW);
 324                         mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 325                         if (mimeType != null && !mimeType.equals(mFile.getMimetype())) {
 326                             i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 327                             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 328                             startActivity(i);
 329                             toastIt = false;
 330                         }
 331
 332                     } catch (IndexOutOfBoundsException e) {
 333                         Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 334
 335                     } catch (ActivityNotFoundException e) {
 336                         Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 337
 338                     } catch (Throwable th) {
 339                         Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 340
 341                     } finally {
 342                         if (toastIt) {
 343                             Toast.makeText(getActivity(), "There is no application to handle file " + mFile.getFileName(), Toast.LENGTH_SHORT).show();
 344                         }
 345                     }
 346
 347                 }
 348                 break;
 349             }
 350             default:
 351                 Log.e(TAG, "Incorrect view clicked!");
 352         }
 353
 354         /* else if (v.getId() == R.id.fdShareBtn) {
 355             Thread t = new Thread(new ShareRunnable(mFile.getRemotePath()));
 356             t.start();
 357         }*/
 358     }
 359
 360
 361     @Override
 362     public void onConfirmation(String callerTag) {
 363         if (callerTag.equals(FTAG_CONFIRMATION)) {
 364             FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 365             if (fdsm.getFileById(mFile.getFileId()) != null) {
 366                 new Thread(new RemoveRunnable(mFile, mAccount, new Handler())).start();
 367                 boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 368                 getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 369             }
 370         }
 371     }
 372
 373     @Override
 374     public void onNeutral(String callerTag) {
 375         FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 376         File f = null;
 377         if (mFile.isDown() && (f = new File(mFile.getStoragePath())).exists()) {
 378             f.delete();
 379             mFile.setStoragePath(null);
 380             fdsm.saveFile(mFile);
 381             updateFileDetails(mFile, mAccount);
 382         }
 383     }
 384
 385     @Override
 386     public void onCancel(String callerTag) {
 387         Log.d(TAG, "REMOVAL CANCELED");
 388     }
 389
 390
 391     /**
 392      * Check if the fragment was created with an empty layout. An empty fragment can't show file details, must be replaced.
 393      *
 394      * @return  True when the fragment was created with the empty layout.
 395      */
 396     public boolean isEmpty() {
 397         return mLayout == R.layout.file_details_empty;
 398     }
 399
 400
 401     /**
 402      * Can be used to get the file that is currently being displayed.
 403      * @return The file on the screen.
 404      */
 405     public OCFile getDisplayedFile(){
 406         return mFile;
 407     }
 408
 409     /**
 410      * Use this method to signal this Activity that it shall update its view.
 411      *
 412      * @param file : An {@link OCFile}
 413      */
 414     public void updateFileDetails(OCFile file, Account ocAccount) {
 415         mFile = file;
 416         mAccount = ocAccount;
 417         updateFileDetails();
 418     }
 419
 420
 421     /**
 422      * Updates the view with all relevant details about that file.
 423      */
 424     public void updateFileDetails() {
 425
 426         if (mFile != null && mAccount != null && mLayout == R.layout.file_details_fragment) {
 427
 428             // set file details
 429             setFilename(mFile.getFileName());
 430             setFiletype(DisplayUtils.convertMIMEtoPrettyPrint(mFile
 431                     .getMimetype()));
 432             setFilesize(mFile.getFileLength());
 433             if(ocVersionSupportsTimeCreated()){
 434                 setTimeCreated(mFile.getCreationTimestamp());
 435             }
 436
 437             setTimeModified(mFile.getModificationTimestamp());
 438
 439             CheckBox cb = (CheckBox)getView().findViewById(R.id.fdKeepInSync);
 440             cb.setChecked(mFile.keepInSync());
 441
 442             // configure UI for depending upon local state of the file
 443             if (FileDownloader.isDownloading(mAccount, mFile.getRemotePath()) || FileUploader.isUploading(mAccount, mFile.getRemotePath())) {
 444                 setButtonsForTransferring();
 445
 446             } else if (mFile.isDown()) {
 447                 // Update preview
 448                 if (mFile.getMimetype().startsWith("image/")) {
 449                     BitmapLoader bl = new BitmapLoader();
 450                     bl.execute(new String[]{mFile.getStoragePath()});
 451                 }
 452
 453                 setButtonsForDown();
 454
 455             } else {
 456                 setButtonsForRemote();
 457             }
 458         }
 459     }
 460
 461
 462     /**
 463      * Updates the filename in view
 464      * @param filename to set
 465      */
 466     private void setFilename(String filename) {
 467         TextView tv = (TextView) getView().findViewById(R.id.fdFilename);
 468         if (tv != null)
 469             tv.setText(filename);
 470     }
 471
 472     /**
 473      * Updates the MIME type in view
 474      * @param mimetype to set
 475      */
 476     private void setFiletype(String mimetype) {
 477         TextView tv = (TextView) getView().findViewById(R.id.fdType);
 478         if (tv != null)
 479             tv.setText(mimetype);
 480     }
 481
 482     /**
 483      * Updates the file size in view
 484      * @param filesize in bytes to set
 485      */
 486     private void setFilesize(long filesize) {
 487         TextView tv = (TextView) getView().findViewById(R.id.fdSize);
 488         if (tv != null)
 489             tv.setText(DisplayUtils.bytesToHumanReadable(filesize));
 490     }
 491
 492     /**
 493      * Updates the time that the file was created in view
 494      * @param milliseconds Unix time to set
 495      */
 496     private void setTimeCreated(long milliseconds){
 497         TextView tv = (TextView) getView().findViewById(R.id.fdCreated);
 498         TextView tvLabel = (TextView) getView().findViewById(R.id.fdCreatedLabel);
 499         if(tv != null){
 500             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 501             tv.setVisibility(View.VISIBLE);
 502             tvLabel.setVisibility(View.VISIBLE);
 503         }
 504     }
 505
 506     /**
 507      * Updates the time that the file was last modified
 508      * @param milliseconds Unix time to set
 509      */
 510     private void setTimeModified(long milliseconds){
 511         TextView tv = (TextView) getView().findViewById(R.id.fdModified);
 512         if(tv != null){
 513             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 514         }
 515     }
 516
 517     /**
 518      * Enables or disables buttons for a file being downloaded
 519      */
 520     private void setButtonsForTransferring() {
 521         if (!isEmpty()) {
 522             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 523             downloadButton.setText(R.string.common_cancel);
 524             //downloadButton.setEnabled(false);
 525
 526             // let's protect the user from himself ;)
 527             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 528             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(false);
 529             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(false);
 530         }
 531     }
 532
 533     /**
 534      * Enables or disables buttons for a file locally available
 535      */
 536     private void setButtonsForDown() {
 537         if (!isEmpty()) {
 538             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 539             downloadButton.setText(R.string.filedetails_redownload);
 540             //downloadButton.setEnabled(true);
 541
 542             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(true);
 543             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 544             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 545         }
 546     }
 547
 548     /**
 549      * Enables or disables buttons for a file not locally available
 550      */
 551     private void setButtonsForRemote() {
 552         if (!isEmpty()) {
 553             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 554             downloadButton.setText(R.string.filedetails_download);
 555
 556             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 557             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 558             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 559         }
 560     }
 561
 562
 563     /**
 564      * In ownCloud 3.X.X and 4.X.X there is a bug that SabreDAV does not return
 565      * the time that the file was created. There is a chance that this will
 566      * be fixed in future versions. Use this method to check if this version of
 567      * ownCloud has this fix.
 568      * @return True, if ownCloud the ownCloud version is supporting creation time
 569      */
 570     private boolean ocVersionSupportsTimeCreated(){
 571         /*if(mAccount != null){
 572             AccountManager accManager = (AccountManager) getActivity().getSystemService(Context.ACCOUNT_SERVICE);
 573             OwnCloudVersion ocVersion = new OwnCloudVersion(accManager
 574                     .getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 575             if(ocVersion.compareTo(new OwnCloudVersion(0x030000)) < 0) {
 576                 return true;
 577             }
 578         }*/
 579         return false;
 580     }
 581
 582
 583     /**
 584      * Interface to implement by any Activity that includes some instance of FileDetailFragment
 585      *
 586      * @author David A. Velasco
 587      */
 588     public interface ContainerActivity {
 589
 590         /**
 591          * Callback method invoked when the detail fragment wants to notice its container
 592          * activity about a relevant state the file shown by the fragment.
 593          *
 594          * Added to notify to FileDisplayActivity about the need of refresh the files list.
 595          *
 596          * Currently called when:
 597          *  - a download is started;
 598          *  - a rename is completed;
 599          *  - a deletion is completed;
 600          *  - the 'inSync' flag is changed;
 601          */
 602         public void onFileStateChanged();
 603
 604     }
 605
 606
 607     /**
 608      * Once the file download has finished -> update view
 609      * @author Bartek Przybylski
 610      */
 611     private class DownloadFinishReceiver extends BroadcastReceiver {
 612         @Override
 613         public void onReceive(Context context, Intent intent) {
 614             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
 615
 616             if (!isEmpty() && accountName.equals(mAccount.name)) {
 617                 boolean downloadWasFine = intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false);
 618                 String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
 619                 if (mFile.getRemotePath().equals(downloadedRemotePath)) {
 620                     if (downloadWasFine) {
 621                         mFile.setStoragePath(intent.getStringExtra(FileDownloader.EXTRA_FILE_PATH));    // updates the local object without accessing the database again
 622                     }
 623                     updateFileDetails();    // it updates the buttons; must be called although !downloadWasFine
 624                 }
 625             }
 626         }
 627     }
 628
 629
 630     /**
 631      * Once the file upload has finished -> update view
 632      *
 633      * Being notified about the finish of an upload is necessary for the next sequence:
 634      *   1. Upload a big file.
 635      *   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
 636      *      of its containing folder; the the server includes it in the PROPFIND requests although it's not fully upload.
 637      *   3. Click the file in the list to see its details.
 638      *   4. Wait for the upload finishes; at this moment, the details view must be refreshed to enable the action buttons.
 639      */
 640     private class UploadFinishReceiver extends BroadcastReceiver {
 641         @Override
 642         public void onReceive(Context context, Intent intent) {
 643             String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
 644
 645             if (!isEmpty() && accountName.equals(mAccount.name)) {
 646                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
 647                 String uploadRemotePath = intent.getStringExtra(FileUploader.EXTRA_REMOTE_PATH);
 648                 if (mFile.getRemotePath().equals(uploadRemotePath)) {
 649                     if (uploadWasFine) {
 650                         FileDataStorageManager fdsm = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());
 651                         mFile = fdsm.getFileByPath(mFile.getRemotePath());
 652                     }
 653                     updateFileDetails();    // it updates the buttons; must be called although !uploadWasFine; interrupted uploads still leave an incomplete file in the server
 654                 }
 655             }
 656         }
 657     }
 658
 659
 660     // this is a temporary class for sharing purposes, it need to be replaced in transfer service
 661     @SuppressWarnings("unused")
 662     private class ShareRunnable implements Runnable {
 663         private String mPath;
 664
 665         public ShareRunnable(String path) {
 666             mPath = path;
 667         }
 668
 669         public void run() {
 670             AccountManager am = AccountManager.get(getActivity());
 671             Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 672             OwnCloudVersion ocv = new OwnCloudVersion(am.getUserData(account, AccountAuthenticator.KEY_OC_VERSION));
 673             String url = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + AccountUtils.getWebdavPath(ocv);
 674
 675             Log.d("share", "sharing for version " + ocv.toString());
 676
 677             if (ocv.compareTo(new OwnCloudVersion(0x040000)) >= 0) {
 678                 String APPS_PATH = "/apps/files_sharing/";
 679                 String SHARE_PATH = "ajax/share.php";
 680
 681                 String SHARED_PATH = "/apps/files_sharing/get.php?token=";
 682
 683                 final String WEBDAV_SCRIPT = "webdav.php";
 684                 final String WEBDAV_FILES_LOCATION = "/files/";
 685
 686                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(account, getActivity().getApplicationContext());
 687                 HttpConnectionManagerParams params = new HttpConnectionManagerParams();
 688                 params.setMaxConnectionsPerHost(wc.getHostConfiguration(), 5);
 689
 690                 //wc.getParams().setParameter("http.protocol.single-cookie-header", true);
 691                 //wc.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
 692
 693                 PostMethod post = new PostMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + APPS_PATH + SHARE_PATH);
 694
 695                 post.addRequestHeader("Content-type","application/x-www-form-urlencoded; charset=UTF-8" );
 696                 post.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 697                 List<NameValuePair> formparams = new ArrayList<NameValuePair>();
 698                 Log.d("share", mPath+"");
 699                 formparams.add(new BasicNameValuePair("sources",mPath));
 700                 formparams.add(new BasicNameValuePair("uid_shared_with", "public"));
 701                 formparams.add(new BasicNameValuePair("permissions", "0"));
 702                 post.setRequestEntity(new StringRequestEntity(URLEncodedUtils.format(formparams, HTTP.UTF_8)));
 703
 704                 int status;
 705                 try {
 706                     PropFindMethod find = new PropFindMethod(url+"/");
 707                     find.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 708                     Log.d("sharer", ""+ url+"/");
 709
 710                     for (org.apache.commons.httpclient.Header a : find.getRequestHeaders()) {
 711                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 712                     }
 713
 714                     int status2 = wc.executeMethod(find);
 715
 716                     Log.d("sharer", "propstatus "+status2);
 717
 718                     GetMethod get = new GetMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + "/");
 719                     get.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 720
 721                     status2 = wc.executeMethod(get);
 722
 723                     Log.d("sharer", "getstatus "+status2);
 724                     Log.d("sharer", "" + get.getResponseBodyAsString());
 725
 726                     for (org.apache.commons.httpclient.Header a : get.getResponseHeaders()) {
 727                         Log.d("sharer", a.getName() + ":"+a.getValue());
 728                     }
 729
 730                     status = wc.executeMethod(post);
 731                     for (org.apache.commons.httpclient.Header a : post.getRequestHeaders()) {
 732                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 733                     }
 734                     for (org.apache.commons.httpclient.Header a : post.getResponseHeaders()) {
 735                         Log.d("sharer", a.getName() + ":"+a.getValue());
 736                     }
 737                     String resp = post.getResponseBodyAsString();
 738                     Log.d("share", ""+post.getURI().toString());
 739                     Log.d("share", "returned status " + status);
 740                     Log.d("share", " " +resp);
 741
 742                     if(status != HttpStatus.SC_OK ||resp == null || resp.equals("") || resp.startsWith("false")) {
 743                         return;
 744                      }
 745
 746                     JSONObject jsonObject = new JSONObject (resp);
 747                     String jsonStatus = jsonObject.getString("status");
 748                     if(!jsonStatus.equals("success")) throw new Exception("Error while sharing file status != success");
 749
 750                     String token = jsonObject.getString("data");
 751                     String uri = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + SHARED_PATH + token;
 752                     Log.d("Actions:shareFile ok", "url: " + uri);
 753
 754                 } catch (Exception e) {
 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 }