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     private ArrayList<Integer> mIndexes;
  78     private ArrayList<Integer> mTops;
  79
  80
  81     /**
  82      * {@inheritDoc}
  83      */
  84     @Override
  85     public void onAttach(Activity activity) {
  86         super.onAttach(activity);
  87         Log_OC.e(TAG, "onAttach");
  88         try {
  89             mContainerActivity = (ContainerActivity) activity;
  90         } catch (ClassCastException e) {
  91             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  92         }
  93     }
  94
  95
  96     /**
  97      * {@inheritDoc}
  98      */
  99     @Override
 100     public void onActivityCreated(Bundle savedInstanceState) {
 101         super.onActivityCreated(savedInstanceState);
 102         Log_OC.e(TAG, "onActivityCreated() start");
 103         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 104         if (savedInstanceState != null) {
 105             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 106         }
 107         setListAdapter(mAdapter);
 108
 109         registerForContextMenu(getListView());
 110         getListView().setOnCreateContextMenuListener(this);
 111
 112         mHandler = new Handler();
 113
 114         mIndexes = new ArrayList<Integer>();
 115         mTops = new ArrayList<Integer>();
 116
 117
 118     }
 119
 120     /**
 121      * Saves the current listed folder.
 122      */
 123     @Override
 124     public void onSaveInstanceState (Bundle outState) {
 125         super.onSaveInstanceState(outState);
 126         outState.putParcelable(EXTRA_FILE, mFile);
 127     }
 128
 129     /**
 130      * Call this, when the user presses the up button.
 131      *
 132      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 133      * it continues browsing up until finding an existing folders.
 134      *
 135      * return       Count of folder levels browsed up.
 136      */
 137     public int onBrowseUp() {
 138         OCFile parentDir = null;
 139         int moveCount = 0;
 140
 141         if(mFile != null){
 142             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 143
 144             String parentPath = null;
 145             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 146                 parentPath = new File(mFile.getRemotePath()).getParent();
 147                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 148                 parentDir = storageManager.getFileByPath(parentPath);
 149                 moveCount++;
 150             } else {
 151                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);    // never returns null; keep the path in root folder
 152             }
 153             while (parentDir == null) {
 154                 parentPath = new File(parentPath).getParent();
 155                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 156                 parentDir = storageManager.getFileByPath(parentPath);
 157                 moveCount++;
 158             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 159             mFile = parentDir;
 160         }
 161
 162         if (mFile != null) {
 163             listDirectory(mFile);
 164
 165             mContainerActivity.startSyncFolderOperation(mFile);
 166
 167             // restore index and position
 168             restoreIndexAndPosition();
 169
 170         }   // else - should never happen now
 171
 172         return moveCount;
 173     }
 174
 175     /*
 176      * Restore index and position
 177      */
 178     private void restoreIndexAndPosition() {
 179         int index = mIndexes.get(mIndexes.size() - 1);
 180         mIndexes.remove(mIndexes.size() - 1);
 181         int top = mTops.get(mTops.size() - 1);
 182         mTops.remove(mTops.size() - 1);
 183         mList.setSelectionFromTop(index, top);
 184     }
 185
 186     /*
 187      * Save index and top position
 188      */
 189     private void saveIndexAndPosition(int index) {
 190
 191         mIndexes.add(index);
 192         View view = mList.getChildAt(0);
 193         mTops.add( (view == null) ? 0 : view.getTop() );
 194     }
 195
 196     @Override
 197     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 198         OCFile file = (OCFile) mAdapter.getItem(position);
 199         if (file != null) {
 200             if (file.isFolder()) {
 201                 // update state and view of this fragment
 202                 listDirectory(file);
 203                 // then, notify parent activity to let it update its state and view, and other fragments
 204                 mContainerActivity.onBrowsedDownTo(file);
 205
 206                 // save index and top position
 207                saveIndexAndPosition(position);
 208
 209             } else { /// Click on a file
 210                 if (PreviewImageFragment.canBePreviewed(file)) {
 211                     // preview image - it handles the download, if needed
 212                     mContainerActivity.startImagePreview(file);
 213
 214                 } else if (file.isDown()) {
 215                     if (PreviewMediaFragment.canBePreviewed(file)) {
 216                         // media preview
 217                         mContainerActivity.startMediaPreview(file, 0, true);
 218                     } else {
 219                         FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 220                         activity.getFileOperationsHelper().openFile(file, activity);
 221                     }
 222
 223                 } else {
 224                     // automatic download, preview on finish
 225                     mContainerActivity.startDownloadForPreview(file);
 226                 }
 227
 228             }
 229
 230         } else {
 231             Log_OC.d(TAG, "Null object in ListAdapter!!");
 232         }
 233
 234     }
 235
 236     /**
 237      * {@inheritDoc}
 238      */
 239     @Override
 240     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 241         super.onCreateContextMenu(menu, v, menuInfo);
 242         MenuInflater inflater = getActivity().getMenuInflater();
 243         inflater.inflate(R.menu.file_actions_menu, menu);
 244         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 245         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 246         List<Integer> toHide = new ArrayList<Integer>();
 247         List<Integer> toDisable = new ArrayList<Integer>();
 248
 249         MenuItem item = null;
 250         if (targetFile.isFolder()) {
 251             // contextual menu for folders
 252             toHide.add(R.id.action_open_file_with);
 253             toHide.add(R.id.action_download_file);
 254             toHide.add(R.id.action_cancel_download);
 255             toHide.add(R.id.action_cancel_upload);
 256             toHide.add(R.id.action_sync_file);
 257             toHide.add(R.id.action_see_details);
 258             toHide.add(R.id.action_send_file);
 259             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 260                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 261                 toDisable.add(R.id.action_rename_file);
 262                 toDisable.add(R.id.action_remove_file);
 263
 264             }
 265
 266         } else {
 267             // contextual menu for regular files
 268
 269             // new design: 'download' and 'open with' won't be available anymore in context menu
 270             toHide.add(R.id.action_download_file);
 271             toHide.add(R.id.action_open_file_with);
 272
 273             if (targetFile.isDown()) {
 274                 toHide.add(R.id.action_cancel_download);
 275                 toHide.add(R.id.action_cancel_upload);
 276
 277             } else {
 278                 toHide.add(R.id.action_sync_file);
 279             }
 280             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 281                 toHide.add(R.id.action_cancel_upload);
 282                 toDisable.add(R.id.action_rename_file);
 283                 toDisable.add(R.id.action_remove_file);
 284
 285             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 286                 toHide.add(R.id.action_cancel_download);
 287                 toDisable.add(R.id.action_rename_file);
 288                 toDisable.add(R.id.action_remove_file);
 289
 290             } else {
 291                 toHide.add(R.id.action_cancel_download);
 292                 toHide.add(R.id.action_cancel_upload);
 293             }
 294         }
 295
 296         // Options shareLink
 297         if (!targetFile.isShareByLink()) {
 298             toHide.add(R.id.action_unshare_file);
 299         }
 300
 301         // Send file
 302         boolean sendEnabled = getString(R.string.send_files_to_other_apps).equalsIgnoreCase("on");
 303         if (!sendEnabled) {
 304             toHide.add(R.id.action_send_file);
 305         }
 306
 307         for (int i : toHide) {
 308             item = menu.findItem(i);
 309             if (item != null) {
 310                 item.setVisible(false);
 311                 item.setEnabled(false);
 312             }
 313         }
 314
 315         for (int i : toDisable) {
 316             item = menu.findItem(i);
 317             if (item != null) {
 318                 item.setEnabled(false);
 319             }
 320         }
 321     }
 322
 323
 324     /**
 325      * {@inhericDoc}
 326      */
 327     @Override
 328     public boolean onContextItemSelected (MenuItem item) {
 329         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 330         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 331         switch (item.getItemId()) {
 332             case R.id.action_share_file: {
 333                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 334                 activity.getFileOperationsHelper().shareFileWithLink(mTargetFile, activity);
 335                 return true;
 336             }
 337             case R.id.action_unshare_file: {
 338                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 339                 activity.getFileOperationsHelper().unshareFileWithLink(mTargetFile, activity);
 340                 return true;
 341             }
 342             case R.id.action_rename_file: {
 343                 String fileName = mTargetFile.getFileName();
 344                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 345                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 346                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 347                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 348                 return true;
 349             }
 350             case R.id.action_remove_file: {
 351                 int messageStringId = R.string.confirmation_remove_alert;
 352                 int posBtnStringId = R.string.confirmation_remove_remote;
 353                 int neuBtnStringId = -1;
 354                 if (mTargetFile.isFolder()) {
 355                     messageStringId = R.string.confirmation_remove_folder_alert;
 356                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 357                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 358                 } else if (mTargetFile.isDown()) {
 359                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 360                     neuBtnStringId = R.string.confirmation_remove_local;
 361                 }
 362                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 363                         messageStringId,
 364                         new String[]{mTargetFile.getFileName()},
 365                         posBtnStringId,
 366                         neuBtnStringId,
 367                         R.string.common_cancel);
 368                 confDialog.setOnConfirmationListener(this);
 369                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 370                 return true;
 371             }
 372             case R.id.action_sync_file: {
 373                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 374                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 375                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 376                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 377                 return true;
 378             }
 379             case R.id.action_cancel_download: {
 380                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 381                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 382                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 383                     downloaderBinder.cancel(account, mTargetFile);
 384                     listDirectory();
 385                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 386                 }
 387                 return true;
 388             }
 389             case R.id.action_cancel_upload: {
 390                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 391                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 392                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 393                     uploaderBinder.cancel(account, mTargetFile);
 394                     listDirectory();
 395                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 396                 }
 397                 return true;
 398             }
 399             case R.id.action_see_details: {
 400                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 401                 return true;
 402             }
 403             case R.id.action_send_file: {
 404                 // Obtain the file
 405                 if (!mTargetFile.isDown()) {  // Download the file
 406                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 407                     mContainerActivity.startDownloadForSending(mTargetFile);
 408
 409                 } else {
 410
 411                     FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 412                     activity.getFileOperationsHelper().sendDownloadedFile(mTargetFile, activity);
 413                 }
 414                 return true;
 415             }
 416             default:
 417                 return super.onContextItemSelected(item);
 418         }
 419     }
 420
 421
 422     /**
 423      * Use this to query the {@link OCFile} that is currently
 424      * being displayed by this fragment
 425      * @return The currently viewed OCFile
 426      */
 427     public OCFile getCurrentFile(){
 428         return mFile;
 429     }
 430
 431     /**
 432      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 433      */
 434     public void listDirectory(){
 435         listDirectory(null);
 436     }
 437
 438     /**
 439      * Lists the given directory on the view. When the input parameter is null,
 440      * it will either refresh the last known directory. list the root
 441      * if there never was a directory.
 442      *
 443      * @param directory File to be listed
 444      */
 445     public void listDirectory(OCFile directory) {
 446         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 447         if (storageManager != null) {
 448
 449             // Check input parameters for null
 450             if(directory == null){
 451                 if(mFile != null){
 452                     directory = mFile;
 453                 } else {
 454                     directory = storageManager.getFileByPath("/");
 455                     if (directory == null) return; // no files, wait for sync
 456                 }
 457             }
 458
 459
 460             // If that's not a directory -> List its parent
 461             if(!directory.isFolder()){
 462                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 463                 directory = storageManager.getFileById(directory.getParentId());
 464             }
 465
 466             mAdapter.swapDirectory(directory, storageManager);
 467             if (mFile == null || !mFile.equals(directory)) {
 468                 mList.setSelectionFromTop(0, 0);
 469             }
 470             mFile = directory;
 471         }
 472     }
 473
 474
 475
 476     /**
 477      * Interface to implement by any Activity that includes some instance of FileListFragment
 478      *
 479      * @author David A. Velasco
 480      */
 481     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 482
 483         /**
 484          * Callback method invoked when a the user browsed into a different folder through the list of files
 485          *
 486          * @param file
 487          */
 488         public void onBrowsedDownTo(OCFile folder);
 489
 490         public void startDownloadForPreview(OCFile file);
 491
 492         public void startMediaPreview(OCFile file, int i, boolean b);
 493
 494         public void startImagePreview(OCFile file);
 495
 496         public void startSyncFolderOperation(OCFile folder);
 497
 498         /**
 499          * Getter for the current DataStorageManager in the container activity
 500          */
 501         public FileDataStorageManager getStorageManager();
 502
 503
 504         /**
 505          * Callback method invoked when a the 'transfer state' of a file changes.
 506          *
 507          * This happens when a download or upload is started or ended for a file.
 508          *
 509          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 510          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 511          * won't provide the needed response before the method where this is called finishes.
 512          *
 513          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 514          *
 515          * @param file          OCFile which state changed.
 516          * @param downloading   Flag signaling if the file is now downloading.
 517          * @param uploading     Flag signaling if the file is now uploading.
 518          */
 519         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 520
 521         void startDownloadForSending(OCFile file);
 522
 523     }
 524
 525
 526     @Override
 527     public void onDismiss(EditNameDialog dialog) {
 528         if (dialog.getResult()) {
 529             String newFilename = dialog.getNewFilename();
 530             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 531             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 532                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 533                                                                 newFilename,
 534                                                                 mContainerActivity.getStorageManager());
 535             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 536             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 537         }
 538     }
 539
 540
 541     @Override
 542     public void onConfirmation(String callerTag) {
 543         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 544             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 545                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 546                                                                     true,
 547                                                                     mContainerActivity.getStorageManager());
 548                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 549
 550                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 551             }
 552         }
 553     }
 554
 555     @Override
 556     public void onNeutral(String callerTag) {
 557         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 558         listDirectory();
 559         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 560     }
 561
 562     @Override
 563     public void onCancel(String callerTag) {
 564         Log_OC.d(TAG, "REMOVAL CANCELED");
 565     }
 566
 567
 568 }