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
  22 import org.apache.commons.httpclient.Credentials;
  23
  24 import android.accounts.Account;
  25 import android.accounts.AccountManager;
  26 import android.annotation.SuppressLint;
  27 import android.app.Activity;
  28 import android.content.ActivityNotFoundException;
  29 import android.content.BroadcastReceiver;
  30 import android.content.Context;
  31 import android.content.Intent;
  32 import android.content.IntentFilter;
  33 import android.graphics.Bitmap;
  34 import android.graphics.BitmapFactory;
  35 import android.graphics.BitmapFactory.Options;
  36 import android.graphics.Point;
  37 import android.net.Uri;
  38 import android.os.AsyncTask;
  39 import android.os.Bundle;
  40 import android.os.Handler;
  41 import android.support.v4.app.DialogFragment;
  42 import android.support.v4.app.FragmentTransaction;
  43 import android.util.Log;
  44 import android.view.Display;
  45 import android.view.LayoutInflater;
  46 import android.view.View;
  47 import android.view.View.OnClickListener;
  48 import android.view.ViewGroup;
  49 import android.webkit.MimeTypeMap;
  50 import android.widget.Button;
  51 import android.widget.CheckBox;
  52 import android.widget.ImageView;
  53 import android.widget.TextView;
  54 import android.widget.Toast;
  55
  56 import com.actionbarsherlock.app.SherlockFragment;
  57 import com.owncloud.android.DisplayUtils;
  58 import com.owncloud.android.authenticator.AccountAuthenticator;
  59 import com.owncloud.android.datamodel.FileDataStorageManager;
  60 import com.owncloud.android.datamodel.OCFile;
  61 import com.owncloud.android.files.services.FileDownloader;
  62 import com.owncloud.android.files.services.FileObserverService;
  63 import com.owncloud.android.files.services.FileUploader;
  64 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  65 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  66 import com.owncloud.android.network.BearerCredentials;
  67 import com.owncloud.android.operations.OnRemoteOperationListener;
  68 import com.owncloud.android.operations.RemoteOperation;
  69 import com.owncloud.android.operations.RemoteOperationResult;
  70 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  71 import com.owncloud.android.operations.RemoveFileOperation;
  72 import com.owncloud.android.operations.RenameFileOperation;
  73 import com.owncloud.android.operations.SynchronizeFileOperation;
  74 import com.owncloud.android.ui.activity.ConflictsResolveActivity;
  75 import com.owncloud.android.ui.activity.FileDetailActivity;
  76 import com.owncloud.android.ui.activity.FileDisplayActivity;
  77 import com.owncloud.android.ui.activity.TransferServiceGetter;
  78 import com.owncloud.android.ui.dialog.EditNameDialog;
  79 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  80
  81 import com.owncloud.android.R;
  82 import eu.alefzero.webdav.WebdavUtils;
  83
  84 /**
  85  * This Fragment is used to display the details about a file.
  86  *
  87  * @author Bartek Przybylski
  88  *
  89  */
  90 public class FileDetailFragment extends SherlockFragment implements
  91         OnClickListener, ConfirmationDialogFragment.ConfirmationDialogFragmentListener, OnRemoteOperationListener, EditNameDialogListener {
  92
  93     public static final String EXTRA_FILE = "FILE";
  94     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  95
  96     private FileDetailFragment.ContainerActivity mContainerActivity;
  97
  98     private int mLayout;
  99     private View mView;
 100     private OCFile mFile;
 101     private Account mAccount;
 102     private FileDataStorageManager mStorageManager;
 103     private ImageView mPreview;
 104
 105     private DownloadFinishReceiver mDownloadFinishReceiver;
 106     private UploadFinishReceiver mUploadFinishReceiver;
 107
 108     private Handler mHandler;
 109     private RemoteOperation mLastRemoteOperation;
 110     private DialogFragment mCurrentDialog;
 111
 112     private static final String TAG = FileDetailFragment.class.getSimpleName();
 113     public static final String FTAG = "FileDetails";
 114     public static final String FTAG_CONFIRMATION = "REMOVE_CONFIRMATION_FRAGMENT";
 115
 116
 117     /**
 118      * Creates an empty details fragment.
 119      *
 120      * It's necessary to keep a public constructor without parameters; the system uses it when tries to reinstantiate a fragment automatically.
 121      */
 122     public FileDetailFragment() {
 123         mFile = null;
 124         mAccount = null;
 125         mStorageManager = null;
 126         mLayout = R.layout.file_details_empty;
 127     }
 128
 129
 130     /**
 131      * Creates a details fragment.
 132      *
 133      * When 'fileToDetail' or 'ocAccount' are null, creates a dummy layout (to use when a file wasn't tapped before).
 134      *
 135      * @param fileToDetail      An {@link OCFile} to show in the fragment
 136      * @param ocAccount         An ownCloud account; needed to start downloads
 137      */
 138     public FileDetailFragment(OCFile fileToDetail, Account ocAccount) {
 139         mFile = fileToDetail;
 140         mAccount = ocAccount;
 141         mStorageManager = null; // we need a context to init this; the container activity is not available yet at this moment
 142         mLayout = R.layout.file_details_empty;
 143     }
 144
 145
 146     @Override
 147     public void onCreate(Bundle savedInstanceState) {
 148         super.onCreate(savedInstanceState);
 149         mHandler = new Handler();
 150     }
 151
 152
 153     @Override
 154     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 155             Bundle savedInstanceState) {
 156         super.onCreateView(inflater, container, savedInstanceState);
 157
 158         if (savedInstanceState != null) {
 159             mFile = savedInstanceState.getParcelable(FileDetailFragment.EXTRA_FILE);
 160             mAccount = savedInstanceState.getParcelable(FileDetailFragment.EXTRA_ACCOUNT);
 161         }
 162
 163         if(mFile != null && mAccount != null) {
 164             mLayout = R.layout.file_details_fragment;
 165         }
 166
 167         View view = null;
 168         view = inflater.inflate(mLayout, container, false);
 169         mView = view;
 170
 171         if (mLayout == R.layout.file_details_fragment) {
 172             mView.findViewById(R.id.fdKeepInSync).setOnClickListener(this);
 173             mView.findViewById(R.id.fdRenameBtn).setOnClickListener(this);
 174             mView.findViewById(R.id.fdDownloadBtn).setOnClickListener(this);
 175             mView.findViewById(R.id.fdOpenBtn).setOnClickListener(this);
 176             mView.findViewById(R.id.fdRemoveBtn).setOnClickListener(this);
 177             //mView.findViewById(R.id.fdShareBtn).setOnClickListener(this);
 178             mPreview = (ImageView)mView.findViewById(R.id.fdPreview);
 179         }
 180
 181         updateFileDetails(false);
 182         return view;
 183     }
 184
 185
 186     /**
 187      * {@inheritDoc}
 188      */
 189     @Override
 190     public void onAttach(Activity activity) {
 191         super.onAttach(activity);
 192         try {
 193             mContainerActivity = (ContainerActivity) activity;
 194         } catch (ClassCastException e) {
 195             throw new ClassCastException(activity.toString() + " must implement " + FileDetailFragment.ContainerActivity.class.getSimpleName());
 196         }
 197     }
 198
 199
 200     /**
 201      * {@inheritDoc}
 202      */
 203     @Override
 204     public void onActivityCreated(Bundle savedInstanceState) {
 205         super.onActivityCreated(savedInstanceState);
 206         if (mAccount != null) {
 207             mStorageManager = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());;
 208         }
 209     }
 210
 211
 212     @Override
 213     public void onSaveInstanceState(Bundle outState) {
 214         Log.i(getClass().toString(), "onSaveInstanceState() start");
 215         super.onSaveInstanceState(outState);
 216         outState.putParcelable(FileDetailFragment.EXTRA_FILE, mFile);
 217         outState.putParcelable(FileDetailFragment.EXTRA_ACCOUNT, mAccount);
 218         Log.i(getClass().toString(), "onSaveInstanceState() end");
 219     }
 220
 221
 222     @Override
 223     public void onResume() {
 224         super.onResume();
 225
 226         mDownloadFinishReceiver = new DownloadFinishReceiver();
 227         IntentFilter filter = new IntentFilter(
 228                 FileDownloader.DOWNLOAD_FINISH_MESSAGE);
 229         getActivity().registerReceiver(mDownloadFinishReceiver, filter);
 230
 231         mUploadFinishReceiver = new UploadFinishReceiver();
 232         filter = new IntentFilter(FileUploader.UPLOAD_FINISH_MESSAGE);
 233         getActivity().registerReceiver(mUploadFinishReceiver, filter);
 234
 235         mPreview = (ImageView)mView.findViewById(R.id.fdPreview);
 236     }
 237
 238     @Override
 239     public void onPause() {
 240         super.onPause();
 241
 242         getActivity().unregisterReceiver(mDownloadFinishReceiver);
 243         mDownloadFinishReceiver = null;
 244
 245         getActivity().unregisterReceiver(mUploadFinishReceiver);
 246         mUploadFinishReceiver = null;
 247
 248         if (mPreview != null) {
 249             mPreview = null;
 250         }
 251     }
 252
 253     @Override
 254     public View getView() {
 255         return super.getView() == null ? mView : super.getView();
 256     }
 257
 258
 259
 260     @Override
 261     public void onClick(View v) {
 262         switch (v.getId()) {
 263             case R.id.fdDownloadBtn: {
 264                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 265                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 266                 if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, mFile)) {
 267                     downloaderBinder.cancel(mAccount, mFile);
 268                     if (mFile.isDown()) {
 269                         setButtonsForDown();
 270                     } else {
 271                         setButtonsForRemote();
 272                     }
 273
 274                 } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, mFile)) {
 275                     uploaderBinder.cancel(mAccount, mFile);
 276                     if (!mFile.fileExists()) {
 277                         // TODO make something better
 278                         if (getActivity() instanceof FileDisplayActivity) {
 279                             // double pane
 280                             FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
 281                             transaction.replace(R.id.file_details_container, new FileDetailFragment(null, null), FTAG); // empty FileDetailFragment
 282                             transaction.commit();
 283                             mContainerActivity.onFileStateChanged();
 284                         } else {
 285                             getActivity().finish();
 286                         }
 287
 288                     } else if (mFile.isDown()) {
 289                         setButtonsForDown();
 290                     } else {
 291                         setButtonsForRemote();
 292                     }
 293
 294                 } else {
 295                     mLastRemoteOperation = new SynchronizeFileOperation(mFile, null, mStorageManager, mAccount, true, false, getActivity());
 296                     mLastRemoteOperation.execute(mAccount, getSherlockActivity(), this, mHandler, getSherlockActivity());
 297
 298                     // update ui
 299                     boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 300                     getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 301                     setButtonsForTransferring(); // disable button immediately, although the synchronization does not result in a file transference
 302
 303                 }
 304                 break;
 305             }
 306             case R.id.fdKeepInSync: {
 307                 CheckBox cb = (CheckBox) getView().findViewById(R.id.fdKeepInSync);
 308                 mFile.setKeepInSync(cb.isChecked());
 309                 mStorageManager.saveFile(mFile);
 310
 311                 /// register the OCFile instance in the observer service to monitor local updates;
 312                 /// if necessary, the file is download
 313                 Intent intent = new Intent(getActivity().getApplicationContext(),
 314                                            FileObserverService.class);
 315                 intent.putExtra(FileObserverService.KEY_FILE_CMD,
 316                            (cb.isChecked()?
 317                                    FileObserverService.CMD_ADD_OBSERVED_FILE:
 318                                    FileObserverService.CMD_DEL_OBSERVED_FILE));
 319                 intent.putExtra(FileObserverService.KEY_CMD_ARG_FILE, mFile);
 320                 intent.putExtra(FileObserverService.KEY_CMD_ARG_ACCOUNT, mAccount);
 321                 Log.e(TAG, "starting observer service");
 322                 getActivity().startService(intent);
 323
 324                 if (mFile.keepInSync()) {
 325                     onClick(getView().findViewById(R.id.fdDownloadBtn));    // force an immediate synchronization
 326                 }
 327                 break;
 328             }
 329             case R.id.fdRenameBtn: {
 330                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), mFile.getFileName(), this);
 331                 dialog.show(getFragmentManager(), "nameeditdialog");
 332                 break;
 333             }
 334             case R.id.fdRemoveBtn: {
 335                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 336                         R.string.confirmation_remove_alert,
 337                         new String[]{mFile.getFileName()},
 338                         mFile.isDown() ? R.string.confirmation_remove_remote_and_local : R.string.confirmation_remove_remote,
 339                         mFile.isDown() ? R.string.confirmation_remove_local : -1,
 340                         R.string.common_cancel);
 341                 confDialog.setOnConfirmationListener(this);
 342                 mCurrentDialog = confDialog;
 343                 mCurrentDialog.show(getFragmentManager(), FTAG_CONFIRMATION);
 344                 break;
 345             }
 346             case R.id.fdOpenBtn: {
 347                 String storagePath = mFile.getStoragePath();
 348                 String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 349                 try {
 350                     Intent i = new Intent(Intent.ACTION_VIEW);
 351                     i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mFile.getMimetype());
 352                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 353                     startActivity(i);
 354
 355                 } catch (Throwable t) {
 356                     Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mFile.getMimetype());
 357                     boolean toastIt = true;
 358                     String mimeType = "";
 359                     try {
 360                         Intent i = new Intent(Intent.ACTION_VIEW);
 361                         mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 362                         if (mimeType == null || !mimeType.equals(mFile.getMimetype())) {
 363                             if (mimeType != null) {
 364                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 365                             } else {
 366                                 // desperate try
 367                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), "*/*");
 368                             }
 369                             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 370                             startActivity(i);
 371                             toastIt = false;
 372                         }
 373
 374                     } catch (IndexOutOfBoundsException e) {
 375                         Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 376
 377                     } catch (ActivityNotFoundException e) {
 378                         Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 379
 380                     } catch (Throwable th) {
 381                         Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 382
 383                     } finally {
 384                         if (toastIt) {
 385                             Toast.makeText(getActivity(), "There is no application to handle file " + mFile.getFileName(), Toast.LENGTH_SHORT).show();
 386                         }
 387                     }
 388
 389                 }
 390                 break;
 391             }
 392             default:
 393                 Log.e(TAG, "Incorrect view clicked!");
 394         }
 395
 396         /* else if (v.getId() == R.id.fdShareBtn) {
 397             Thread t = new Thread(new ShareRunnable(mFile.getRemotePath()));
 398             t.start();
 399         }*/
 400     }
 401
 402
 403     @Override
 404     public void onConfirmation(String callerTag) {
 405         if (callerTag.equals(FTAG_CONFIRMATION)) {
 406             if (mStorageManager.getFileById(mFile.getFileId()) != null) {
 407                 mLastRemoteOperation = new RemoveFileOperation( mFile,
 408                                                                 true,
 409                                                                 mStorageManager);
 410                 mLastRemoteOperation.execute(mAccount, getSherlockActivity(), this, mHandler, getSherlockActivity());
 411                 boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 412                 getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 413             }
 414         }
 415         mCurrentDialog.dismiss();
 416         mCurrentDialog = null;
 417     }
 418
 419     @Override
 420     public void onNeutral(String callerTag) {
 421         File f = null;
 422         if (mFile.isDown() && (f = new File(mFile.getStoragePath())).exists()) {
 423             f.delete();
 424             mFile.setStoragePath(null);
 425             mStorageManager.saveFile(mFile);
 426             updateFileDetails(mFile, mAccount);
 427         }
 428         mCurrentDialog.dismiss();
 429         mCurrentDialog = null;
 430     }
 431
 432     @Override
 433     public void onCancel(String callerTag) {
 434         Log.d(TAG, "REMOVAL CANCELED");
 435         mCurrentDialog.dismiss();
 436         mCurrentDialog = null;
 437     }
 438
 439
 440     /**
 441      * Check if the fragment was created with an empty layout. An empty fragment can't show file details, must be replaced.
 442      *
 443      * @return  True when the fragment was created with the empty layout.
 444      */
 445     public boolean isEmpty() {
 446         return (mLayout == R.layout.file_details_empty || mFile == null || mAccount == null);
 447     }
 448
 449
 450     /**
 451      * Can be used to get the file that is currently being displayed.
 452      * @return The file on the screen.
 453      */
 454     public OCFile getDisplayedFile(){
 455         return mFile;
 456     }
 457
 458     /**
 459      * Use this method to signal this Activity that it shall update its view.
 460      *
 461      * @param file : An {@link OCFile}
 462      */
 463     public void updateFileDetails(OCFile file, Account ocAccount) {
 464         mFile = file;
 465         if (ocAccount != null && (
 466                 mStorageManager == null ||
 467                 (mAccount != null && !mAccount.equals(ocAccount))
 468            )) {
 469             mStorageManager = new FileDataStorageManager(ocAccount, getActivity().getApplicationContext().getContentResolver());
 470         }
 471         mAccount = ocAccount;
 472         updateFileDetails(false);
 473     }
 474
 475
 476     /**
 477      * Updates the view with all relevant details about that file.
 478      *
 479      * TODO Remove parameter when the transferring state of files is kept in database.
 480      *
 481      * @param transferring      Flag signaling if the file should be considered as downloading or uploading,
 482      *                          although {@link FileDownloaderBinder#isDownloading(Account, OCFile)}  and
 483      *                          {@link FileUploaderBinder#isUploading(Account, OCFile)} return false.
 484      *
 485      */
 486     public void updateFileDetails(boolean transferring) {
 487
 488         if (mFile != null && mAccount != null && mLayout == R.layout.file_details_fragment) {
 489
 490             // set file details
 491             setFilename(mFile.getFileName());
 492             setFiletype(DisplayUtils.convertMIMEtoPrettyPrint(mFile
 493                     .getMimetype()));
 494             setFilesize(mFile.getFileLength());
 495             if(ocVersionSupportsTimeCreated()){
 496                 setTimeCreated(mFile.getCreationTimestamp());
 497             }
 498
 499             setTimeModified(mFile.getModificationTimestamp());
 500
 501             CheckBox cb = (CheckBox)getView().findViewById(R.id.fdKeepInSync);
 502             cb.setChecked(mFile.keepInSync());
 503
 504             // configure UI for depending upon local state of the file
 505             //if (FileDownloader.isDownloading(mAccount, mFile.getRemotePath()) || FileUploader.isUploading(mAccount, mFile.getRemotePath())) {
 506             FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 507             FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 508             if (transferring || (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, mFile)) || (uploaderBinder != null && uploaderBinder.isUploading(mAccount, mFile))) {
 509                 setButtonsForTransferring();
 510
 511             } else if (mFile.isDown()) {
 512                 // Update preview
 513                 if (mFile.getMimetype().startsWith("image/")) {
 514                     BitmapLoader bl = new BitmapLoader();
 515                     bl.execute(new String[]{mFile.getStoragePath()});
 516                 }
 517
 518                 setButtonsForDown();
 519
 520             } else {
 521                 // TODO load default preview image; when the local file is removed, the preview remains there
 522                 setButtonsForRemote();
 523             }
 524         }
 525         getView().invalidate();
 526     }
 527
 528
 529     /**
 530      * Updates the filename in view
 531      * @param filename to set
 532      */
 533     private void setFilename(String filename) {
 534         TextView tv = (TextView) getView().findViewById(R.id.fdFilename);
 535         if (tv != null)
 536             tv.setText(filename);
 537     }
 538
 539     /**
 540      * Updates the MIME type in view
 541      * @param mimetype to set
 542      */
 543     private void setFiletype(String mimetype) {
 544         TextView tv = (TextView) getView().findViewById(R.id.fdType);
 545         if (tv != null)
 546             tv.setText(mimetype);
 547     }
 548
 549     /**
 550      * Updates the file size in view
 551      * @param filesize in bytes to set
 552      */
 553     private void setFilesize(long filesize) {
 554         TextView tv = (TextView) getView().findViewById(R.id.fdSize);
 555         if (tv != null)
 556             tv.setText(DisplayUtils.bytesToHumanReadable(filesize));
 557     }
 558
 559     /**
 560      * Updates the time that the file was created in view
 561      * @param milliseconds Unix time to set
 562      */
 563     private void setTimeCreated(long milliseconds){
 564         TextView tv = (TextView) getView().findViewById(R.id.fdCreated);
 565         TextView tvLabel = (TextView) getView().findViewById(R.id.fdCreatedLabel);
 566         if(tv != null){
 567             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 568             tv.setVisibility(View.VISIBLE);
 569             tvLabel.setVisibility(View.VISIBLE);
 570         }
 571     }
 572
 573     /**
 574      * Updates the time that the file was last modified
 575      * @param milliseconds Unix time to set
 576      */
 577     private void setTimeModified(long milliseconds){
 578         TextView tv = (TextView) getView().findViewById(R.id.fdModified);
 579         if(tv != null){
 580             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 581         }
 582     }
 583
 584     /**
 585      * Enables or disables buttons for a file being downloaded
 586      */
 587     private void setButtonsForTransferring() {
 588         if (!isEmpty()) {
 589             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 590             downloadButton.setText(R.string.common_cancel);
 591             //downloadButton.setEnabled(false);
 592
 593             // let's protect the user from himself ;)
 594             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 595             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(false);
 596             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(false);
 597             getView().findViewById(R.id.fdKeepInSync).setEnabled(false);
 598         }
 599     }
 600
 601     /**
 602      * Enables or disables buttons for a file locally available
 603      */
 604     private void setButtonsForDown() {
 605         if (!isEmpty()) {
 606             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 607             downloadButton.setText(R.string.filedetails_sync_file);
 608
 609             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(true);
 610             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 611             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 612             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 613         }
 614     }
 615
 616     /**
 617      * Enables or disables buttons for a file not locally available
 618      */
 619     private void setButtonsForRemote() {
 620         if (!isEmpty()) {
 621             Button downloadButton = (Button) getView().findViewById(R.id.fdDownloadBtn);
 622             downloadButton.setText(R.string.filedetails_download);
 623
 624             ((Button) getView().findViewById(R.id.fdOpenBtn)).setEnabled(false);
 625             ((Button) getView().findViewById(R.id.fdRenameBtn)).setEnabled(true);
 626             ((Button) getView().findViewById(R.id.fdRemoveBtn)).setEnabled(true);
 627             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 628         }
 629     }
 630
 631
 632     /**
 633      * In ownCloud 3.X.X and 4.X.X there is a bug that SabreDAV does not return
 634      * the time that the file was created. There is a chance that this will
 635      * be fixed in future versions. Use this method to check if this version of
 636      * ownCloud has this fix.
 637      * @return True, if ownCloud the ownCloud version is supporting creation time
 638      */
 639     private boolean ocVersionSupportsTimeCreated(){
 640         /*if(mAccount != null){
 641             AccountManager accManager = (AccountManager) getActivity().getSystemService(Context.ACCOUNT_SERVICE);
 642             OwnCloudVersion ocVersion = new OwnCloudVersion(accManager
 643                     .getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 644             if(ocVersion.compareTo(new OwnCloudVersion(0x030000)) < 0) {
 645                 return true;
 646             }
 647         }*/
 648         return false;
 649     }
 650
 651
 652     /**
 653      * Interface to implement by any Activity that includes some instance of FileDetailFragment
 654      *
 655      * @author David A. Velasco
 656      */
 657     public interface ContainerActivity extends TransferServiceGetter {
 658
 659         /**
 660          * Callback method invoked when the detail fragment wants to notice its container
 661          * activity about a relevant state the file shown by the fragment.
 662          *
 663          * Added to notify to FileDisplayActivity about the need of refresh the files list.
 664          *
 665          * Currently called when:
 666          *  - a download is started;
 667          *  - a rename is completed;
 668          *  - a deletion is completed;
 669          *  - the 'inSync' flag is changed;
 670          */
 671         public void onFileStateChanged();
 672
 673     }
 674
 675
 676     /**
 677      * Once the file download has finished -> update view
 678      * @author Bartek Przybylski
 679      */
 680     private class DownloadFinishReceiver extends BroadcastReceiver {
 681         @Override
 682         public void onReceive(Context context, Intent intent) {
 683             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
 684
 685             if (!isEmpty() && accountName.equals(mAccount.name)) {
 686                 boolean downloadWasFine = intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false);
 687                 String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
 688                 if (mFile.getRemotePath().equals(downloadedRemotePath)) {
 689                     if (downloadWasFine) {
 690                         mFile = mStorageManager.getFileByPath(downloadedRemotePath);
 691                     }
 692                     updateFileDetails(false);    // it updates the buttons; must be called although !downloadWasFine
 693                 }
 694             }
 695         }
 696     }
 697
 698
 699     /**
 700      * Once the file upload has finished -> update view
 701      *
 702      * Being notified about the finish of an upload is necessary for the next sequence:
 703      *   1. Upload a big file.
 704      *   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
 705      *      of its containing folder; the the server includes it in the PROPFIND requests although it's not fully upload.
 706      *   3. Click the file in the list to see its details.
 707      *   4. Wait for the upload finishes; at this moment, the details view must be refreshed to enable the action buttons.
 708      */
 709     private class UploadFinishReceiver extends BroadcastReceiver {
 710         @Override
 711         public void onReceive(Context context, Intent intent) {
 712             String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
 713
 714             if (!isEmpty() && accountName.equals(mAccount.name)) {
 715                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
 716                 String uploadRemotePath = intent.getStringExtra(FileUploader.EXTRA_REMOTE_PATH);
 717                 boolean renamedInUpload = mFile.getRemotePath().equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
 718                 if (mFile.getRemotePath().equals(uploadRemotePath) ||
 719                     renamedInUpload) {
 720                     if (uploadWasFine) {
 721                        mFile = mStorageManager.getFileByPath(uploadRemotePath);
 722                     }
 723                     if (renamedInUpload) {
 724                         String newName = (new File(uploadRemotePath)).getName();
 725                         Toast msg = Toast.makeText(getActivity().getApplicationContext(), String.format(getString(R.string.filedetails_renamed_in_upload_msg), newName), Toast.LENGTH_LONG);
 726                         msg.show();
 727                     }
 728                     getSherlockActivity().removeStickyBroadcast(intent);    // not the best place to do this; a small refactorization of BroadcastReceivers should be done
 729                     updateFileDetails(false);    // it updates the buttons; must be called although !uploadWasFine; interrupted uploads still leave an incomplete file in the server
 730                 }
 731             }
 732         }
 733     }
 734
 735
 736     // this is a temporary class for sharing purposes, it need to be replaced in transfer service
 737     /*
 738     @SuppressWarnings("unused")
 739     private class ShareRunnable implements Runnable {
 740         private String mPath;
 741
 742         public ShareRunnable(String path) {
 743             mPath = path;
 744         }
 745
 746         public void run() {
 747             AccountManager am = AccountManager.get(getActivity());
 748             Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 749             OwnCloudVersion ocv = new OwnCloudVersion(am.getUserData(account, AccountAuthenticator.KEY_OC_VERSION));
 750             String url = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + AccountUtils.getWebdavPath(ocv);
 751
 752             Log.d("share", "sharing for version " + ocv.toString());
 753
 754             if (ocv.compareTo(new OwnCloudVersion(0x040000)) >= 0) {
 755                 String APPS_PATH = "/apps/files_sharing/";
 756                 String SHARE_PATH = "ajax/share.php";
 757
 758                 String SHARED_PATH = "/apps/files_sharing/get.php?token=";
 759
 760                 final String WEBDAV_SCRIPT = "webdav.php";
 761                 final String WEBDAV_FILES_LOCATION = "/files/";
 762
 763                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(account, getActivity().getApplicationContext());
 764                 HttpConnectionManagerParams params = new HttpConnectionManagerParams();
 765                 params.setMaxConnectionsPerHost(wc.getHostConfiguration(), 5);
 766
 767                 //wc.getParams().setParameter("http.protocol.single-cookie-header", true);
 768                 //wc.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
 769
 770                 PostMethod post = new PostMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + APPS_PATH + SHARE_PATH);
 771
 772                 post.addRequestHeader("Content-type","application/x-www-form-urlencoded; charset=UTF-8" );
 773                 post.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 774                 List<NameValuePair> formparams = new ArrayList<NameValuePair>();
 775                 Log.d("share", mPath+"");
 776                 formparams.add(new BasicNameValuePair("sources",mPath));
 777                 formparams.add(new BasicNameValuePair("uid_shared_with", "public"));
 778                 formparams.add(new BasicNameValuePair("permissions", "0"));
 779                 post.setRequestEntity(new StringRequestEntity(URLEncodedUtils.format(formparams, HTTP.UTF_8)));
 780
 781                 int status;
 782                 try {
 783                     PropFindMethod find = new PropFindMethod(url+"/");
 784                     find.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 785                     Log.d("sharer", ""+ url+"/");
 786
 787                     for (org.apache.commons.httpclient.Header a : find.getRequestHeaders()) {
 788                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 789                     }
 790
 791                     int status2 = wc.executeMethod(find);
 792
 793                     Log.d("sharer", "propstatus "+status2);
 794
 795                     GetMethod get = new GetMethod(am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + "/");
 796                     get.addRequestHeader("Referer", am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL));
 797
 798                     status2 = wc.executeMethod(get);
 799
 800                     Log.d("sharer", "getstatus "+status2);
 801                     Log.d("sharer", "" + get.getResponseBodyAsString());
 802
 803                     for (org.apache.commons.httpclient.Header a : get.getResponseHeaders()) {
 804                         Log.d("sharer", a.getName() + ":"+a.getValue());
 805                     }
 806
 807                     status = wc.executeMethod(post);
 808                     for (org.apache.commons.httpclient.Header a : post.getRequestHeaders()) {
 809                         Log.d("sharer-h", a.getName() + ":"+a.getValue());
 810                     }
 811                     for (org.apache.commons.httpclient.Header a : post.getResponseHeaders()) {
 812                         Log.d("sharer", a.getName() + ":"+a.getValue());
 813                     }
 814                     String resp = post.getResponseBodyAsString();
 815                     Log.d("share", ""+post.getURI().toString());
 816                     Log.d("share", "returned status " + status);
 817                     Log.d("share", " " +resp);
 818
 819                     if(status != HttpStatus.SC_OK ||resp == null || resp.equals("") || resp.startsWith("false")) {
 820                         return;
 821                      }
 822
 823                     JSONObject jsonObject = new JSONObject (resp);
 824                     String jsonStatus = jsonObject.getString("status");
 825                     if(!jsonStatus.equals("success")) throw new Exception("Error while sharing file status != success");
 826
 827                     String token = jsonObject.getString("data");
 828                     String uri = am.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL) + SHARED_PATH + token;
 829                     Log.d("Actions:shareFile ok", "url: " + uri);
 830
 831                 } catch (Exception e) {
 832                     e.printStackTrace();
 833                 }
 834
 835             } else if (ocv.compareTo(new OwnCloudVersion(0x030000)) >= 0) {
 836
 837             }
 838         }
 839     }
 840     */
 841
 842     public void onDismiss(EditNameDialog dialog) {
 843         if (dialog.getResult()) {
 844             String newFilename = dialog.getNewFilename();
 845             Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 846             mLastRemoteOperation = new RenameFileOperation( mFile,
 847                                                             mAccount,
 848                                                             newFilename,
 849                                                             new FileDataStorageManager(mAccount, getActivity().getContentResolver()));
 850             mLastRemoteOperation.execute(mAccount, getSherlockActivity(), this, mHandler, getSherlockActivity());
 851             boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 852             getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 853         }
 854     }
 855
 856
 857     class BitmapLoader extends AsyncTask<String, Void, Bitmap> {
 858         @SuppressLint({ "NewApi", "NewApi", "NewApi" }) // to avoid Lint errors since Android SDK r20
 859                 @Override
 860         protected Bitmap doInBackground(String... params) {
 861             Bitmap result = null;
 862             if (params.length != 1) return result;
 863             String storagePath = params[0];
 864             try {
 865
 866                 BitmapFactory.Options options = new Options();
 867                 options.inScaled = true;
 868                 options.inPurgeable = true;
 869                 options.inJustDecodeBounds = true;
 870                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
 871                     options.inPreferQualityOverSpeed = false;
 872                 }
 873                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
 874                     options.inMutable = false;
 875                 }
 876
 877                 result = BitmapFactory.decodeFile(storagePath, options);
 878                 options.inJustDecodeBounds = false;
 879
 880                 int width = options.outWidth;
 881                 int height = options.outHeight;
 882                 int scale = 1;
 883                 if (width >= 2048 || height >= 2048) {
 884                     scale = (int) Math.ceil((Math.ceil(Math.max(height, width) / 2048.)));
 885                     options.inSampleSize = scale;
 886                 }
 887                 Display display = getActivity().getWindowManager().getDefaultDisplay();
 888                 Point size = new Point();
 889                 int screenwidth;
 890                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB_MR2) {
 891                     display.getSize(size);
 892                     screenwidth = size.x;
 893                 } else {
 894                     screenwidth = display.getWidth();
 895                 }
 896
 897                 Log.e("ASD", "W " + width + " SW " + screenwidth);
 898
 899                 if (width > screenwidth) {
 900                     scale = (int) Math.ceil((float)width / screenwidth);
 901                     options.inSampleSize = scale;
 902                 }
 903
 904                 result = BitmapFactory.decodeFile(storagePath, options);
 905
 906                 Log.e("ASD", "W " + options.outWidth + " SW " + options.outHeight);
 907
 908             } catch (OutOfMemoryError e) {
 909                 result = null;
 910                 Log.e(TAG, "Out of memory occured for file with size " + storagePath);
 911
 912             } catch (NoSuchFieldError e) {
 913                 result = null;
 914                 Log.e(TAG, "Error from access to unexisting field despite protection " + storagePath);
 915
 916             } catch (Throwable t) {
 917                 result = null;
 918                 Log.e(TAG, "Unexpected error while creating image preview " + storagePath, t);
 919             }
 920             return result;
 921         }
 922         @Override
 923         protected void onPostExecute(Bitmap result) {
 924             if (result != null && mPreview != null) {
 925                 mPreview.setImageBitmap(result);
 926             }
 927         }
 928
 929     }
 930
 931     /**
 932      * {@inheritDoc}
 933      */
 934     @Override
 935     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 936         if (operation instanceof RemoveFileOperation) {
 937             onRemoveFileOperationFinish((RemoveFileOperation)operation, result);
 938
 939         } else if (operation instanceof RenameFileOperation) {
 940             onRenameFileOperationFinish((RenameFileOperation)operation, result);
 941
 942         } else if (operation instanceof SynchronizeFileOperation) {
 943             onSynchronizeFileOperationFinish((SynchronizeFileOperation)operation, result);
 944         }
 945     }
 946
 947
 948     private void onRemoveFileOperationFinish(RemoveFileOperation operation, RemoteOperationResult result) {
 949         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 950         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 951
 952         if (result.isSuccess()) {
 953             Toast msg = Toast.makeText(getActivity().getApplicationContext(), R.string.remove_success_msg, Toast.LENGTH_LONG);
 954             msg.show();
 955             if (inDisplayActivity) {
 956                 // double pane
 957                 FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
 958                 transaction.replace(R.id.file_details_container, new FileDetailFragment(null, null)); // empty FileDetailFragment
 959                 transaction.commit();
 960                 mContainerActivity.onFileStateChanged();
 961             } else {
 962                 getActivity().finish();
 963             }
 964
 965         } else {
 966             Toast msg = Toast.makeText(getActivity(), R.string.remove_fail_msg, Toast.LENGTH_LONG);
 967             msg.show();
 968             if (result.isSslRecoverableException()) {
 969                 // TODO show the SSL warning dialog
 970             }
 971         }
 972     }
 973
 974     private void onRenameFileOperationFinish(RenameFileOperation operation, RemoteOperationResult result) {
 975         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 976         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 977
 978         if (result.isSuccess()) {
 979             updateFileDetails(((RenameFileOperation)operation).getFile(), mAccount);
 980             mContainerActivity.onFileStateChanged();
 981
 982         } else {
 983             if (result.getCode().equals(ResultCode.INVALID_LOCAL_FILE_NAME)) {
 984                 Toast msg = Toast.makeText(getActivity(), R.string.rename_local_fail_msg, Toast.LENGTH_LONG);
 985                 msg.show();
 986                 // TODO throw again the new rename dialog
 987             } else {
 988                 Toast msg = Toast.makeText(getActivity(), R.string.rename_server_fail_msg, Toast.LENGTH_LONG);
 989                 msg.show();
 990                 if (result.isSslRecoverableException()) {
 991                     // TODO show the SSL warning dialog
 992                 }
 993             }
 994         }
 995     }
 996
 997     private void onSynchronizeFileOperationFinish(SynchronizeFileOperation operation, RemoteOperationResult result) {
 998         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 999         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
1000
1001         if (!result.isSuccess()) {
1002             if (result.getCode() == ResultCode.SYNC_CONFLICT) {
1003                 Intent i = new Intent(getActivity(), ConflictsResolveActivity.class);
1004                 i.putExtra(ConflictsResolveActivity.EXTRA_FILE, mFile);
1005                 i.putExtra(ConflictsResolveActivity.EXTRA_ACCOUNT, mAccount);
1006                 startActivity(i);
1007
1008             } else {
1009                 Toast msg = Toast.makeText(getActivity(), R.string.sync_file_fail_msg, Toast.LENGTH_LONG);
1010                 msg.show();
1011             }
1012
1013             if (mFile.isDown()) {
1014                 setButtonsForDown();
1015
1016             } else {
1017                 setButtonsForRemote();
1018             }
1019
1020         } else {
1021             if (operation.transferWasRequested()) {
1022                 mContainerActivity.onFileStateChanged();    // this is not working; FileDownloader won't do NOTHING at all until this method finishes, so
1023                                                             // checking the service to see if the file is downloading results in FALSE
1024             } else {
1025                 Toast msg = Toast.makeText(getActivity(), R.string.sync_file_nothing_to_do_msg, Toast.LENGTH_LONG);
1026                 msg.show();
1027                 if (mFile.isDown()) {
1028                     setButtonsForDown();
1029
1030                 } else {
1031                     setButtonsForRemote();
1032                 }
1033             }
1034         }
1035     }
1036
1037 }