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

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author Bartek Przybylski
   5  *   @author masensio
   6  *   @author David A. Velasco
   7  *   Copyright (C) 2011  Bartek Przybylski
   8  *   Copyright (C) 2015 ownCloud Inc.
   9  *
  10  *   This program is free software: you can redistribute it and/or modify
  11  *   it under the terms of the GNU General Public License version 2,
  12  *   as published by the Free Software Foundation.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  *
  22  */
  23 package com.owncloud.android.ui.fragment;
  24
  25 import android.app.Activity;
  26 import android.content.Intent;
  27 import android.os.Bundle;
  28 import android.support.v4.widget.SwipeRefreshLayout;
  29 import android.view.ContextMenu;
  30 import android.view.Menu;
  31 import android.view.MenuInflater;
  32 import android.view.MenuItem;
  33 import android.view.View;
  34 import android.widget.AdapterView;
  35 import android.widget.AdapterView.AdapterContextMenuInfo;
  36 import android.widget.PopupMenu;
  37
  38 import com.owncloud.android.R;
  39 import com.owncloud.android.authentication.AccountUtils;
  40 import com.owncloud.android.datamodel.FileDataStorageManager;
  41 import com.owncloud.android.datamodel.OCFile;
  42 import com.owncloud.android.files.FileMenuFilter;
  43 import com.owncloud.android.lib.common.utils.Log_OC;
  44 import com.owncloud.android.lib.resources.status.OwnCloudVersion;
  45 import com.owncloud.android.ui.activity.FileActivity;
  46 import com.owncloud.android.ui.activity.FileDisplayActivity;
  47 import com.owncloud.android.ui.activity.FolderPickerActivity;
  48 import com.owncloud.android.ui.activity.OnEnforceableRefreshListener;
  49 import com.owncloud.android.ui.adapter.FileListListAdapter;
  50 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  51 import com.owncloud.android.ui.dialog.FileActionsDialogFragment;
  52 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  53 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  54 import com.owncloud.android.ui.preview.PreviewImageFragment;
  55 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  56 import com.owncloud.android.utils.FileStorageUtils;
  57 import com.owncloud.android.ui.preview.PreviewTextFragment;
  58
  59 import java.io.File;
  60
  61 /**
  62  * A Fragment that lists all files and folders in a given path.
  63  *
  64  * TODO refactor to get rid of direct dependency on FileDisplayActivity
  65  */
  66 public class OCFileListFragment extends ExtendedListFragment implements FileActionsDialogFragment.FileActionsDialogFragmentListener {
  67
  68     private static final String TAG = OCFileListFragment.class.getSimpleName();
  69
  70     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  71             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  72
  73     public final static String ARG_JUST_FOLDERS = MY_PACKAGE + ".JUST_FOLDERS";
  74     public final static String ARG_ALLOW_CONTEXTUAL_ACTIONS = MY_PACKAGE + ".ALLOW_CONTEXTUAL";
  75
  76     private static final String KEY_FILE = MY_PACKAGE + ".extra.FILE";
  77
  78     private FileFragment.ContainerActivity mContainerActivity;
  79
  80     private OCFile mFile = null;
  81     private FileListListAdapter mAdapter;
  82     private boolean mJustFolders;
  83
  84     private OCFile mTargetFile;
  85
  86
  87
  88     /**
  89      * {@inheritDoc}
  90      */
  91     @Override
  92     public void onAttach(Activity activity) {
  93         super.onAttach(activity);
  94         Log_OC.e(TAG, "onAttach");
  95         try {
  96             mContainerActivity = (FileFragment.ContainerActivity) activity;
  97
  98         } catch (ClassCastException e) {
  99             throw new ClassCastException(activity.toString() + " must implement " +
 100                     FileFragment.ContainerActivity.class.getSimpleName());
 101         }
 102         try {
 103             setOnRefreshListener((OnEnforceableRefreshListener) activity);
 104
 105         } catch (ClassCastException e) {
 106             throw new ClassCastException(activity.toString() + " must implement " +
 107                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
 108         }
 109     }
 110
 111
 112     @Override
 113     public void onDetach() {
 114         setOnRefreshListener(null);
 115         mContainerActivity = null;
 116         super.onDetach();
 117     }
 118
 119     /**
 120      * {@inheritDoc}
 121      */
 122     @Override
 123     public void onActivityCreated(Bundle savedInstanceState) {
 124         super.onActivityCreated(savedInstanceState);
 125         Log_OC.e(TAG, "onActivityCreated() start");
 126
 127         if (savedInstanceState != null) {
 128             mFile = savedInstanceState.getParcelable(KEY_FILE);
 129         }
 130
 131         if (mJustFolders) {
 132             setFooterEnabled(false);
 133         } else {
 134             setFooterEnabled(true);
 135         }
 136
 137         Bundle args = getArguments();
 138         mJustFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 139         mAdapter = new FileListListAdapter(
 140                 mJustFolders,
 141                 getActivity(),
 142                 mContainerActivity
 143         );
 144         setListAdapter(mAdapter);
 145
 146         registerLongClickListener();
 147   }
 148
 149     private void registerLongClickListener() {
 150         getListView().setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
 151             public boolean onItemLongClick(AdapterView<?> arg0, View v,
 152                                            int index, long arg3) {
 153                 showFileAction(index);
 154                 return true;
 155             }
 156         });
 157     }
 158
 159
 160     private void showFileAction(int fileIndex) {
 161         Bundle args = getArguments();
 162         PopupMenu pm = new PopupMenu(getActivity(),null);
 163         Menu menu = pm.getMenu();
 164
 165         boolean allowContextualActions =
 166                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 167
 168         if (allowContextualActions) {
 169             MenuInflater inflater = getActivity().getMenuInflater();
 170
 171             inflater.inflate(R.menu.file_actions_menu, menu);
 172             OCFile targetFile = (OCFile) mAdapter.getItem(fileIndex);
 173
 174             if (mContainerActivity.getStorageManager() != null) {
 175                 FileMenuFilter mf = new FileMenuFilter(
 176                         targetFile,
 177                         mContainerActivity.getStorageManager().getAccount(),
 178                         mContainerActivity,
 179                         getActivity()
 180                 );
 181                 mf.filter(menu);
 182             }
 183
 184             /// TODO break this direct dependency on FileDisplayActivity... if possible
 185             MenuItem item = menu.findItem(R.id.action_open_file_with);
 186             FileFragment frag = ((FileDisplayActivity)getActivity()).getSecondFragment();
 187             if (frag != null && frag instanceof FileDetailFragment &&
 188                     frag.getFile().getFileId() == targetFile.getFileId()) {
 189                 item = menu.findItem(R.id.action_see_details);
 190                 if (item != null) {
 191                     item.setVisible(false);
 192                     item.setEnabled(false);
 193                 }
 194             }
 195
 196             FileActionsDialogFragment dialog = FileActionsDialogFragment.newInstance(menu, fileIndex, targetFile.getFileName());
 197             dialog.setTargetFragment(this, 0);
 198             dialog.show(getFragmentManager(), FileActionsDialogFragment.FTAG_FILE_ACTIONS);
 199         }
 200     }
 201
 202     /**
 203      * Saves the current listed folder.
 204      */
 205     @Override
 206     public void onSaveInstanceState(Bundle outState) {
 207         super.onSaveInstanceState(outState);
 208         outState.putParcelable(KEY_FILE, mFile);
 209     }
 210
 211     /**
 212      * Call this, when the user presses the up button.
 213      *
 214      * Tries to move up the current folder one level. If the parent folder was removed from the
 215      * database, it continues browsing up until finding an existing folders.
 216      * <p/>
 217      * return       Count of folder levels browsed up.
 218      */
 219     public int onBrowseUp() {
 220         OCFile parentDir = null;
 221         int moveCount = 0;
 222
 223         if (mFile != null) {
 224             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 225
 226             String parentPath = null;
 227             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 228                 parentPath = new File(mFile.getRemotePath()).getParent();
 229                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 230                         parentPath + OCFile.PATH_SEPARATOR;
 231                 parentDir = storageManager.getFileByPath(parentPath);
 232                 moveCount++;
 233             } else {
 234                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 235             }
 236             while (parentDir == null) {
 237                 parentPath = new File(parentPath).getParent();
 238                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 239                         parentPath + OCFile.PATH_SEPARATOR;
 240                 parentDir = storageManager.getFileByPath(parentPath);
 241                 moveCount++;
 242             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 243             mFile = parentDir;
 244
 245             // TODO Enable when "On Device" is recovered ?
 246             listDirectory(mFile /*, MainApp.getOnlyOnDevice()*/);
 247
 248             onRefresh(false);
 249
 250             // restore index and top position
 251             restoreIndexAndTopPosition();
 252
 253         }   // else - should never happen now
 254
 255         return moveCount;
 256     }
 257
 258     @Override
 259     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 260         OCFile file = (OCFile) mAdapter.getItem(position);
 261         if (file != null) {
 262             if (file.isFolder()) {
 263                 // update state and view of this fragment
 264                 // TODO Enable when "On Device" is recovered ?
 265                 listDirectory(file/*, MainApp.getOnlyOnDevice()*/);
 266                 // then, notify parent activity to let it update its state and view
 267                 mContainerActivity.onBrowsedDownTo(file);
 268                 // save index and top position
 269                 saveIndexAndTopPosition(position);
 270
 271             } else { /// Click on a file
 272                 if (PreviewImageFragment.canBePreviewed(file)) {
 273                     // preview image - it handles the download, if needed
 274                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 275                 } else if (PreviewTextFragment.canBePreviewed(file)){
 276                     ((FileDisplayActivity)mContainerActivity).startTextPreview(file);
 277                 } else if (file.isDown()) {
 278                     if (PreviewMediaFragment.canBePreviewed(file)) {
 279                         // media preview
 280                         ((FileDisplayActivity) mContainerActivity).startMediaPreview(file, 0, true);
 281                     } else {
 282                         mContainerActivity.getFileOperationsHelper().openFile(file);
 283                     }
 284
 285                 }
 286             }
 287
 288         } else {
 289             Log_OC.d(TAG, "Null object in ListAdapter!!");
 290         }
 291
 292     }
 293
 294     /**
 295      * {@inheritDoc}
 296      */
 297     @Override
 298     public void onCreateContextMenu(
 299             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 300         Bundle args = getArguments();
 301         boolean allowContextualActions =
 302                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 303         if (allowContextualActions) {
 304             MenuInflater inflater = getActivity().getMenuInflater();
 305             inflater.inflate(R.menu.file_actions_menu, menu);
 306             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 307             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 308
 309             if (mContainerActivity.getStorageManager() != null) {
 310                 FileMenuFilter mf = new FileMenuFilter(
 311                     targetFile,
 312                     mContainerActivity.getStorageManager().getAccount(),
 313                     mContainerActivity,
 314                     getActivity()
 315                 );
 316                 mf.filter(menu);
 317             }
 318
 319             /// TODO break this direct dependency on FileDisplayActivity... if possible
 320             MenuItem item = menu.findItem(R.id.action_open_file_with);
 321             FileFragment frag = ((FileDisplayActivity)getActivity()).getSecondFragment();
 322             if (frag != null && frag instanceof FileDetailFragment &&
 323                     frag.getFile().getFileId() == targetFile.getFileId()) {
 324                 item = menu.findItem(R.id.action_see_details);
 325                 if (item != null) {
 326                     item.setVisible(false);
 327                     item.setEnabled(false);
 328                 }
 329             }
 330         }
 331     }
 332
 333     /**
 334      * {@inheritDoc}
 335      */
 336     @Override
 337     public boolean onFileActionChosen(int menuId, int filePosition) {
 338         mTargetFile = (OCFile) mAdapter.getItem(filePosition);
 339         switch (menuId) {
 340             case R.id.action_share_file: {
 341                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 342                 return true;
 343             }
 344             case R.id.action_open_file_with: {
 345                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 346                 return true;
 347             }
 348             case R.id.action_unshare_file: {
 349                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 350                 return true;
 351             }
 352             case R.id.action_rename_file: {
 353                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 354                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 355                 return true;
 356             }
 357             case R.id.action_remove_file: {
 358                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 359                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 360                 return true;
 361             }
 362             case R.id.action_download_file:
 363             case R.id.action_sync_file: {
 364                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 365                 return true;
 366             }
 367             case R.id.action_cancel_download:
 368             case R.id.action_cancel_upload: {
 369                 ((FileDisplayActivity) mContainerActivity).cancelTransference(mTargetFile);
 370                 return true;
 371             }
 372             case R.id.action_see_details: {
 373                 mContainerActivity.showDetails(mTargetFile);
 374                 return true;
 375             }
 376             case R.id.action_send_file: {
 377                 // Obtain the file
 378                 if (!mTargetFile.isDown()) {  // Download the file
 379                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 380                     ((FileDisplayActivity) mContainerActivity).startDownloadForSending(mTargetFile);
 381
 382                 } else {
 383                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 384                 }
 385                 return true;
 386             }
 387             case R.id.action_move: {
 388                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 389
 390                 // Pass mTargetFile that contains info of selected file/folder
 391                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 392                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 393                 return true;
 394             }
 395             case R.id.action_favorite_file: {
 396                 mContainerActivity.getFileOperationsHelper().toggleFavorite(mTargetFile, true);
 397                 return true;
 398             }
 399             case R.id.action_unfavorite_file: {
 400                 mContainerActivity.getFileOperationsHelper().toggleFavorite(mTargetFile, false);
 401                 return true;
 402             }
 403             case R.id.action_copy:
 404                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 405
 406                 // Pass mTargetFile that contains info of selected file/folder
 407                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 408                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_COPY_FILES);
 409                 return true;
 410             default:
 411                 return false;
 412         }
 413     }
 414
 415     /**
 416      * {@inhericDoc}
 417      */
 418     @Override
 419     public boolean onContextItemSelected (MenuItem item) {
 420         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 421         boolean matched = onFileActionChosen(item.getItemId(), ((AdapterContextMenuInfo) item.getMenuInfo()).position);
 422         if(!matched) {
 423             return super.onContextItemSelected(item);
 424         } else {
 425             return matched;
 426         }
 427     }
 428
 429
 430     /**
 431      * Use this to query the {@link OCFile} that is currently
 432      * being displayed by this fragment
 433      *
 434      * @return The currently viewed OCFile
 435      */
 436     public OCFile getCurrentFile() {
 437         return mFile;
 438     }
 439
 440     /**
 441      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 442      */
 443     public void listDirectory(/*boolean onlyOnDevice*/){
 444         listDirectory(null);
 445         // TODO Enable when "On Device" is recovered ?
 446         // listDirectory(null, onlyOnDevice);
 447     }
 448
 449     public void refreshDirectory(){
 450         // TODO Enable when "On Device" is recovered ?
 451         listDirectory(getCurrentFile()/*, MainApp.getOnlyOnDevice()*/);
 452     }
 453
 454     /**
 455      * Lists the given directory on the view. When the input parameter is null,
 456      * it will either refresh the last known directory. list the root
 457      * if there never was a directory.
 458      *
 459      * @param directory File to be listed
 460      */
 461     public void listDirectory(OCFile directory/*, boolean onlyOnDevice*/) {
 462         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 463         if (storageManager != null) {
 464
 465             // Check input parameters for null
 466             if (directory == null) {
 467                 if (mFile != null) {
 468                     directory = mFile;
 469                 } else {
 470                     directory = storageManager.getFileByPath("/");
 471                     if (directory == null) return; // no files, wait for sync
 472                 }
 473             }
 474
 475
 476             // If that's not a directory -> List its parent
 477             if (!directory.isFolder()) {
 478                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 479                 directory = storageManager.getFileById(directory.getParentId());
 480             }
 481
 482             // TODO Enable when "On Device" is recovered ?
 483             mAdapter.swapDirectory(directory, storageManager/*, onlyOnDevice*/);
 484             if (mFile == null || !mFile.equals(directory)) {
 485                 mCurrentListView.setSelection(0);
 486             }
 487             mFile = directory;
 488
 489             updateLayout();
 490
 491         }
 492     }
 493
 494     private void updateLayout() {
 495         if (!mJustFolders) {
 496             int filesCount = 0, foldersCount = 0, imagesCount = 0;
 497             int count = mAdapter.getCount();
 498             OCFile file;
 499             for (int i=0; i < count ; i++) {
 500                 file = (OCFile) mAdapter.getItem(i);
 501                 if (file.isFolder()) {
 502                     foldersCount++;
 503                 } else {
 504                     if (!file.isHidden()) {
 505                         filesCount++;
 506
 507                         if (file.isImage()) {
 508                             imagesCount++;
 509                         }
 510                     }
 511                 }
 512             }
 513             // set footer text
 514             setFooterText(generateFooterText(filesCount, foldersCount));
 515
 516             // decide grid vs list view
 517             OwnCloudVersion version = AccountUtils.getServerVersion(
 518                     ((FileActivity)mContainerActivity).getAccount());
 519             if (version != null && version.supportsRemoteThumbnails() &&
 520                 imagesCount > 0 && imagesCount == filesCount) {
 521                 switchToGridView();
 522                 registerLongClickListener();
 523             } else {
 524                 switchToListView();
 525             }
 526         }
 527     }
 528
 529     private String generateFooterText(int filesCount, int foldersCount) {
 530         String output;
 531         if (filesCount <= 0) {
 532             if (foldersCount <= 0) {
 533                 output = "";
 534
 535             } else if (foldersCount == 1) {
 536                 output = getResources().getString(R.string.file_list__footer__folder);
 537
 538             } else { // foldersCount > 1
 539                 output = getResources().getString(R.string.file_list__footer__folders, foldersCount);
 540             }
 541
 542         } else if (filesCount == 1) {
 543             if (foldersCount <= 0) {
 544                 output = getResources().getString(R.string.file_list__footer__file);
 545
 546             } else if (foldersCount == 1) {
 547                 output = getResources().getString(R.string.file_list__footer__file_and_folder);
 548
 549             } else { // foldersCount > 1
 550                 output = getResources().getString(R.string.file_list__footer__file_and_folders, foldersCount);
 551             }
 552         } else {    // filesCount > 1
 553             if (foldersCount <= 0) {
 554                 output = getResources().getString(R.string.file_list__footer__files, filesCount);
 555
 556             } else if (foldersCount == 1) {
 557                 output = getResources().getString(R.string.file_list__footer__files_and_folder, filesCount);
 558
 559             } else { // foldersCount > 1
 560                 output = getResources().getString(
 561                         R.string.file_list__footer__files_and_folders, filesCount, foldersCount
 562                 );
 563
 564             }
 565         }
 566         return output;
 567     }
 568
 569     public void sortByName(boolean descending) {
 570         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 571     }
 572
 573     public void sortByDate(boolean descending) {
 574         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 575     }
 576
 577     public void sortBySize(boolean descending) {
 578         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 579     }
 580 }