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.operations.common.OnRemoteOperationListener;
  31 import com.owncloud.android.lib.operations.common.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         for (int i : toHide) {
 267             item = menu.findItem(i);
 268             if (item != null) {
 269                 item.setVisible(false);
 270                 item.setEnabled(false);
 271             }
 272         }
 273
 274         for (int i : toDisable) {
 275             item = menu.findItem(i);
 276             if (item != null) {
 277                 item.setEnabled(false);
 278             }
 279         }
 280     }
 281
 282
 283     /**
 284      * {@inhericDoc}
 285      */
 286     @Override
 287     public boolean onContextItemSelected (MenuItem item) {
 288         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 289         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 290         switch (item.getItemId()) {
 291             case R.id.action_share_file: {
 292                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 293                 activity.getFileOperationsHelper().shareFileWithLink(mTargetFile, activity);
 294                 return true;
 295             }
 296             case R.id.action_unshare_file: {
 297                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 298                 activity.getFileOperationsHelper().unshareFileWithLink(mTargetFile, activity);
 299                 return true;
 300             }
 301             case R.id.action_rename_file: {
 302                 String fileName = mTargetFile.getFileName();
 303                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 304                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 305                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 306                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 307                 return true;
 308             }
 309             case R.id.action_remove_file: {
 310                 int messageStringId = R.string.confirmation_remove_alert;
 311                 int posBtnStringId = R.string.confirmation_remove_remote;
 312                 int neuBtnStringId = -1;
 313                 if (mTargetFile.isFolder()) {
 314                     messageStringId = R.string.confirmation_remove_folder_alert;
 315                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 316                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 317                 } else if (mTargetFile.isDown()) {
 318                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 319                     neuBtnStringId = R.string.confirmation_remove_local;
 320                 }
 321                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 322                         messageStringId,
 323                         new String[]{mTargetFile.getFileName()},
 324                         posBtnStringId,
 325                         neuBtnStringId,
 326                         R.string.common_cancel);
 327                 confDialog.setOnConfirmationListener(this);
 328                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 329                 return true;
 330             }
 331             case R.id.action_sync_file: {
 332                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 333                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 334                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 335                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 336                 return true;
 337             }
 338             case R.id.action_cancel_download: {
 339                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 340                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 341                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 342                     downloaderBinder.cancel(account, mTargetFile);
 343                     listDirectory();
 344                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 345                 }
 346                 return true;
 347             }
 348             case R.id.action_cancel_upload: {
 349                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 350                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 351                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 352                     uploaderBinder.cancel(account, mTargetFile);
 353                     listDirectory();
 354                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 355                 }
 356                 return true;
 357             }
 358             case R.id.action_see_details: {
 359                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 360                 return true;
 361             }
 362             case R.id.action_send_file: {
 363                 // Obtain the file
 364                 if (!mTargetFile.isDown()) {  // Download the file
 365                     ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 366                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 367                     mContainerActivity.startDownloadForSending(mTargetFile);
 368
 369                 } else {
 370
 371                     FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 372                     activity.getFileOperationsHelper().sendDownloadedFile(mTargetFile, activity);
 373                 }
 374                 return true;
 375             }
 376             default:
 377                 return super.onContextItemSelected(item);
 378         }
 379     }
 380
 381
 382     /**
 383      * Use this to query the {@link OCFile} that is currently
 384      * being displayed by this fragment
 385      * @return The currently viewed OCFile
 386      */
 387     public OCFile getCurrentFile(){
 388         return mFile;
 389     }
 390
 391     /**
 392      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 393      */
 394     public void listDirectory(){
 395         listDirectory(null);
 396     }
 397
 398     /**
 399      * Lists the given directory on the view. When the input parameter is null,
 400      * it will either refresh the last known directory. list the root
 401      * if there never was a directory.
 402      *
 403      * @param directory File to be listed
 404      */
 405     public void listDirectory(OCFile directory) {
 406         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 407         if (storageManager != null) {
 408
 409             // Check input parameters for null
 410             if(directory == null){
 411                 if(mFile != null){
 412                     directory = mFile;
 413                 } else {
 414                     directory = storageManager.getFileByPath("/");
 415                     if (directory == null) return; // no files, wait for sync
 416                 }
 417             }
 418
 419
 420             // If that's not a directory -> List its parent
 421             if(!directory.isFolder()){
 422                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 423                 directory = storageManager.getFileById(directory.getParentId());
 424             }
 425
 426             mAdapter.swapDirectory(directory, storageManager);
 427             if (mFile == null || !mFile.equals(directory)) {
 428                 mList.setSelectionFromTop(0, 0);
 429             }
 430             mFile = directory;
 431         }
 432     }
 433
 434
 435
 436     /**
 437      * Interface to implement by any Activity that includes some instance of FileListFragment
 438      *
 439      * @author David A. Velasco
 440      */
 441     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 442
 443         /**
 444          * Callback method invoked when a the user browsed into a different folder through the list of files
 445          *
 446          * @param file
 447          */
 448         public void onBrowsedDownTo(OCFile folder);
 449
 450         public void startDownloadForPreview(OCFile file);
 451
 452         public void startMediaPreview(OCFile file, int i, boolean b);
 453
 454         public void startImagePreview(OCFile file);
 455
 456         public void startSyncFolderOperation(OCFile folder);
 457
 458         /**
 459          * Getter for the current DataStorageManager in the container activity
 460          */
 461         public FileDataStorageManager getStorageManager();
 462
 463
 464         /**
 465          * Callback method invoked when a the 'transfer state' of a file changes.
 466          *
 467          * This happens when a download or upload is started or ended for a file.
 468          *
 469          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 470          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 471          * won't provide the needed response before the method where this is called finishes.
 472          *
 473          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 474          *
 475          * @param file          OCFile which state changed.
 476          * @param downloading   Flag signaling if the file is now downloading.
 477          * @param uploading     Flag signaling if the file is now uploading.
 478          */
 479         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 480
 481         void startDownloadForSending(OCFile file);
 482
 483     }
 484
 485
 486     @Override
 487     public void onDismiss(EditNameDialog dialog) {
 488         if (dialog.getResult()) {
 489             String newFilename = dialog.getNewFilename();
 490             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 491             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 492                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 493                                                                 newFilename,
 494                                                                 mContainerActivity.getStorageManager());
 495             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 496             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 497         }
 498     }
 499
 500
 501     @Override
 502     public void onConfirmation(String callerTag) {
 503         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 504             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 505                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 506                                                                     true,
 507                                                                     mContainerActivity.getStorageManager());
 508                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 509
 510                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 511             }
 512         }
 513     }
 514
 515     @Override
 516     public void onNeutral(String callerTag) {
 517         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 518         listDirectory();
 519         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 520     }
 521
 522     @Override
 523     public void onCancel(String callerTag) {
 524         Log_OC.d(TAG, "REMOVAL CANCELED");
 525     }
 526
 527
 528 }