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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   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.util.ArrayList;
  22 import java.util.List;
  23
  24 import com.owncloud.android.R;
  25 import com.owncloud.android.authentication.AccountUtils;
  26 import com.owncloud.android.datamodel.FileDataStorageManager;
  27 import com.owncloud.android.datamodel.OCFile;
  28 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  29 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  30 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  31 import com.owncloud.android.lib.common.operations.RemoteOperation;
  32 import com.owncloud.android.operations.RemoveFileOperation;
  33 import com.owncloud.android.operations.RenameFileOperation;
  34 import com.owncloud.android.operations.SynchronizeFileOperation;
  35 import com.owncloud.android.ui.activity.FileDisplayActivity;
  36 import com.owncloud.android.ui.activity.TransferServiceGetter;
  37 import com.owncloud.android.ui.adapter.FileListListAdapter;
  38 import com.owncloud.android.ui.dialog.EditNameDialog;
  39 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  40 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  41 import com.owncloud.android.ui.preview.PreviewImageFragment;
  42 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  43 import com.owncloud.android.utils.Log_OC;
  44
  45 import android.accounts.Account;
  46 import android.app.Activity;
  47 import android.os.Bundle;
  48 import android.os.Handler;
  49 import android.view.ContextMenu;
  50 import android.view.MenuInflater;
  51 import android.view.MenuItem;
  52 import android.view.View;
  53 import android.widget.AdapterView;
  54 import android.widget.AdapterView.AdapterContextMenuInfo;
  55
  56 /**
  57  * A Fragment that lists all files and folders in a given path.
  58  *
  59  * @author Bartek Przybylski
  60  *
  61  */
  62 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  63
  64     private static final String TAG = OCFileListFragment.class.getSimpleName();
  65
  66     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  67     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  68
  69     private OCFileListFragment.ContainerActivity mContainerActivity;
  70
  71     private OCFile mFile = null;
  72     private FileListListAdapter mAdapter;
  73
  74     private Handler mHandler;
  75     private OCFile mTargetFile;
  76
  77     /**
  78      * {@inheritDoc}
  79      */
  80     @Override
  81     public void onAttach(Activity activity) {
  82         super.onAttach(activity);
  83         Log_OC.e(TAG, "onAttach");
  84         try {
  85             mContainerActivity = (ContainerActivity) activity;
  86         } catch (ClassCastException e) {
  87             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  88         }
  89     }
  90
  91
  92     /**
  93      * {@inheritDoc}
  94      */
  95     @Override
  96     public void onActivityCreated(Bundle savedInstanceState) {
  97         super.onActivityCreated(savedInstanceState);
  98         Log_OC.e(TAG, "onActivityCreated() start");
  99         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 100         if (savedInstanceState != null) {
 101             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 102         }
 103         setListAdapter(mAdapter);
 104
 105         registerForContextMenu(getListView());
 106         getListView().setOnCreateContextMenuListener(this);
 107
 108         mHandler = new Handler();
 109
 110     }
 111
 112     /**
 113      * Saves the current listed folder.
 114      */
 115     @Override
 116     public void onSaveInstanceState (Bundle outState) {
 117         super.onSaveInstanceState(outState);
 118         outState.putParcelable(EXTRA_FILE, mFile);
 119     }
 120
 121
 122     /**
 123      * Call this, when the user presses the up button.
 124      *
 125      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 126      * it continues browsing up until finding an existing folders.
 127      *
 128      * return       Count of folder levels browsed up.
 129      */
 130     public int onBrowseUp() {
 131         OCFile parentDir = null;
 132         int moveCount = 0;
 133
 134         if(mFile != null){
 135             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 136
 137             String parentPath = null;
 138             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 139                 parentPath = new File(mFile.getRemotePath()).getParent();
 140                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 141                 parentDir = storageManager.getFileByPath(parentPath);
 142                 moveCount++;
 143             } else {
 144                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);    // never returns null; keep the path in root folder
 145             }
 146             while (parentDir == null) {
 147                 parentPath = new File(parentPath).getParent();
 148                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 149                 parentDir = storageManager.getFileByPath(parentPath);
 150                 moveCount++;
 151             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 152             mFile = parentDir;
 153         }
 154
 155         if (mFile != null) {
 156             listDirectory(mFile);
 157
 158             mContainerActivity.startSyncFolderOperation(mFile);
 159         }   // else - should never happen now
 160
 161         return moveCount;
 162     }
 163
 164     @Override
 165     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 166         OCFile file = (OCFile) mAdapter.getItem(position);
 167         if (file != null) {
 168             if (file.isFolder()) {
 169                 // update state and view of this fragment
 170                 listDirectory(file);
 171                 // then, notify parent activity to let it update its state and view, and other fragments
 172                 mContainerActivity.onBrowsedDownTo(file);
 173
 174             } else { /// Click on a file
 175                 if (PreviewImageFragment.canBePreviewed(file)) {
 176                     // preview image - it handles the download, if needed
 177                     mContainerActivity.startImagePreview(file);
 178
 179                 } else if (file.isDown()) {
 180                     if (PreviewMediaFragment.canBePreviewed(file)) {
 181                         // media preview
 182                         mContainerActivity.startMediaPreview(file, 0, true);
 183                     } else {
 184                         FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 185                         activity.getFileOperationsHelper().openFile(file, activity);
 186                     }
 187
 188                 } else {
 189                     // automatic download, preview on finish
 190                     mContainerActivity.startDownloadForPreview(file);
 191                 }
 192
 193             }
 194
 195         } else {
 196             Log_OC.d(TAG, "Null object in ListAdapter!!");
 197         }
 198
 199     }
 200
 201     /**
 202      * {@inheritDoc}
 203      */
 204     @Override
 205     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 206         super.onCreateContextMenu(menu, v, menuInfo);
 207         MenuInflater inflater = getActivity().getMenuInflater();
 208         inflater.inflate(R.menu.file_actions_menu, menu);
 209         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 210         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 211         List<Integer> toHide = new ArrayList<Integer>();
 212         List<Integer> toDisable = new ArrayList<Integer>();
 213
 214         MenuItem item = null;
 215         if (targetFile.isFolder()) {
 216             // contextual menu for folders
 217             toHide.add(R.id.action_open_file_with);
 218             toHide.add(R.id.action_download_file);
 219             toHide.add(R.id.action_cancel_download);
 220             toHide.add(R.id.action_cancel_upload);
 221             toHide.add(R.id.action_sync_file);
 222             toHide.add(R.id.action_see_details);
 223             toHide.add(R.id.action_send_file);
 224             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 225                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 226                 toDisable.add(R.id.action_rename_file);
 227                 toDisable.add(R.id.action_remove_file);
 228
 229             }
 230
 231         } else {
 232             // contextual menu for regular files
 233
 234             // new design: 'download' and 'open with' won't be available anymore in context menu
 235             toHide.add(R.id.action_download_file);
 236             toHide.add(R.id.action_open_file_with);
 237
 238             if (targetFile.isDown()) {
 239                 toHide.add(R.id.action_cancel_download);
 240                 toHide.add(R.id.action_cancel_upload);
 241
 242             } else {
 243                 toHide.add(R.id.action_sync_file);
 244             }
 245             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 246                 toHide.add(R.id.action_cancel_upload);
 247                 toDisable.add(R.id.action_rename_file);
 248                 toDisable.add(R.id.action_remove_file);
 249
 250             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 251                 toHide.add(R.id.action_cancel_download);
 252                 toDisable.add(R.id.action_rename_file);
 253                 toDisable.add(R.id.action_remove_file);
 254
 255             } else {
 256                 toHide.add(R.id.action_cancel_download);
 257                 toHide.add(R.id.action_cancel_upload);
 258             }
 259         }
 260
 261         // Options shareLink
 262         if (!targetFile.isShareByLink()) {
 263             toHide.add(R.id.action_unshare_file);
 264         }
 265
 266         // Send file
 267         boolean sendEnabled = getString(R.string.send_files_to_other_apps).equalsIgnoreCase("on");
 268         if (!sendEnabled) {
 269             toHide.add(R.id.action_send_file);
 270         }
 271
 272         for (int i : toHide) {
 273             item = menu.findItem(i);
 274             if (item != null) {
 275                 item.setVisible(false);
 276                 item.setEnabled(false);
 277             }
 278         }
 279
 280         for (int i : toDisable) {
 281             item = menu.findItem(i);
 282             if (item != null) {
 283                 item.setEnabled(false);
 284             }
 285         }
 286     }
 287
 288
 289     /**
 290      * {@inhericDoc}
 291      */
 292     @Override
 293     public boolean onContextItemSelected (MenuItem item) {
 294         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 295         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 296         switch (item.getItemId()) {
 297             case R.id.action_share_file: {
 298                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 299                 activity.getFileOperationsHelper().shareFileWithLink(mTargetFile, activity);
 300                 return true;
 301             }
 302             case R.id.action_unshare_file: {
 303                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 304                 activity.getFileOperationsHelper().unshareFileWithLink(mTargetFile, activity);
 305                 return true;
 306             }
 307             case R.id.action_rename_file: {
 308                 String fileName = mTargetFile.getFileName();
 309                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 310                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 311                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 312                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 313                 return true;
 314             }
 315             case R.id.action_remove_file: {
 316                 int messageStringId = R.string.confirmation_remove_alert;
 317                 int posBtnStringId = R.string.confirmation_remove_remote;
 318                 int neuBtnStringId = -1;
 319                 if (mTargetFile.isFolder()) {
 320                     messageStringId = R.string.confirmation_remove_folder_alert;
 321                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 322                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 323                 } else if (mTargetFile.isDown()) {
 324                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 325                     neuBtnStringId = R.string.confirmation_remove_local;
 326                 }
 327                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 328                         messageStringId,
 329                         new String[]{mTargetFile.getFileName()},
 330                         posBtnStringId,
 331                         neuBtnStringId,
 332                         R.string.common_cancel);
 333                 confDialog.setOnConfirmationListener(this);
 334                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 335                 return true;
 336             }
 337             case R.id.action_sync_file: {
 338                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 339                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 340                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 341                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 342                 return true;
 343             }
 344             case R.id.action_cancel_download: {
 345                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 346                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 347                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 348                     downloaderBinder.cancel(account, mTargetFile);
 349                     listDirectory();
 350                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 351                 }
 352                 return true;
 353             }
 354             case R.id.action_cancel_upload: {
 355                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 356                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 357                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 358                     uploaderBinder.cancel(account, mTargetFile);
 359                     listDirectory();
 360                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 361                 }
 362                 return true;
 363             }
 364             case R.id.action_see_details: {
 365                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 366                 return true;
 367             }
 368             case R.id.action_send_file: {
 369                 // Obtain the file
 370                 if (!mTargetFile.isDown()) {  // Download the file
 371                     ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 372                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 373                     mContainerActivity.startDownloadForSending(mTargetFile);
 374
 375                 } else {
 376
 377                     FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 378                     activity.getFileOperationsHelper().sendDownloadedFile(mTargetFile, activity);
 379                 }
 380                 return true;
 381             }
 382             default:
 383                 return super.onContextItemSelected(item);
 384         }
 385     }
 386
 387
 388     /**
 389      * Use this to query the {@link OCFile} that is currently
 390      * being displayed by this fragment
 391      * @return The currently viewed OCFile
 392      */
 393     public OCFile getCurrentFile(){
 394         return mFile;
 395     }
 396
 397     /**
 398      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 399      */
 400     public void listDirectory(){
 401         listDirectory(null);
 402     }
 403
 404     /**
 405      * Lists the given directory on the view. When the input parameter is null,
 406      * it will either refresh the last known directory. list the root
 407      * if there never was a directory.
 408      *
 409      * @param directory File to be listed
 410      */
 411     public void listDirectory(OCFile directory) {
 412         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 413         if (storageManager != null) {
 414
 415             // Check input parameters for null
 416             if(directory == null){
 417                 if(mFile != null){
 418                     directory = mFile;
 419                 } else {
 420                     directory = storageManager.getFileByPath("/");
 421                     if (directory == null) return; // no files, wait for sync
 422                 }
 423             }
 424
 425
 426             // If that's not a directory -> List its parent
 427             if(!directory.isFolder()){
 428                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 429                 directory = storageManager.getFileById(directory.getParentId());
 430             }
 431
 432             mAdapter.swapDirectory(directory, storageManager);
 433             if (mFile == null || !mFile.equals(directory)) {
 434                 mList.setSelectionFromTop(0, 0);
 435             }
 436             mFile = directory;
 437         }
 438     }
 439
 440
 441
 442     /**
 443      * Interface to implement by any Activity that includes some instance of FileListFragment
 444      *
 445      * @author David A. Velasco
 446      */
 447     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 448
 449         /**
 450          * Callback method invoked when a the user browsed into a different folder through the list of files
 451          *
 452          * @param file
 453          */
 454         public void onBrowsedDownTo(OCFile folder);
 455
 456         public void startDownloadForPreview(OCFile file);
 457
 458         public void startMediaPreview(OCFile file, int i, boolean b);
 459
 460         public void startImagePreview(OCFile file);
 461
 462         public void startSyncFolderOperation(OCFile folder);
 463
 464         /**
 465          * Getter for the current DataStorageManager in the container activity
 466          */
 467         public FileDataStorageManager getStorageManager();
 468
 469
 470         /**
 471          * Callback method invoked when a the 'transfer state' of a file changes.
 472          *
 473          * This happens when a download or upload is started or ended for a file.
 474          *
 475          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 476          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 477          * won't provide the needed response before the method where this is called finishes.
 478          *
 479          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 480          *
 481          * @param file          OCFile which state changed.
 482          * @param downloading   Flag signaling if the file is now downloading.
 483          * @param uploading     Flag signaling if the file is now uploading.
 484          */
 485         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 486
 487         void startDownloadForSending(OCFile file);
 488
 489     }
 490
 491
 492     @Override
 493     public void onDismiss(EditNameDialog dialog) {
 494         if (dialog.getResult()) {
 495             String newFilename = dialog.getNewFilename();
 496             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 497             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 498                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 499                                                                 newFilename,
 500                                                                 mContainerActivity.getStorageManager());
 501             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 502             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 503         }
 504     }
 505
 506
 507     @Override
 508     public void onConfirmation(String callerTag) {
 509         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 510             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 511                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 512                                                                     true,
 513                                                                     mContainerActivity.getStorageManager());
 514                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 515
 516                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 517             }
 518         }
 519     }
 520
 521     @Override
 522     public void onNeutral(String callerTag) {
 523         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 524         listDirectory();
 525         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 526     }
 527
 528     @Override
 529     public void onCancel(String callerTag) {
 530         Log_OC.d(TAG, "REMOVAL CANCELED");
 531     }
 532
 533
 534 }