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.accounts.Account;
  26 import android.app.Activity;
  27 import android.content.Context;
  28 import android.content.DialogInterface;
  29 import android.content.Intent;
  30 import android.net.Uri;
  31 import android.os.Bundle;
  32 import android.support.v4.widget.SwipeRefreshLayout;
  33 import android.support.v7.app.AlertDialog;
  34 import android.view.ContextMenu;
  35 import android.view.Menu;
  36 import android.view.MenuInflater;
  37 import android.view.MenuItem;
  38 import android.view.View;
  39 import android.widget.AdapterView;
  40 import android.widget.AdapterView.AdapterContextMenuInfo;
  41 import android.widget.PopupMenu;
  42
  43 import com.owncloud.android.MainApp;
  44 import com.owncloud.android.R;
  45 import com.owncloud.android.authentication.AccountUtils;
  46 import com.owncloud.android.datamodel.FileDataStorageManager;
  47 import com.owncloud.android.datamodel.OCFile;
  48 import com.owncloud.android.files.FileMenuFilter;
  49 import com.owncloud.android.lib.common.utils.Log_OC;
  50 import com.owncloud.android.lib.resources.status.OwnCloudVersion;
  51 import com.owncloud.android.media.MediaService;
  52 import com.owncloud.android.ui.activity.FileActivity;
  53 import com.owncloud.android.ui.activity.FileDisplayActivity;
  54 import com.owncloud.android.ui.activity.FolderPickerActivity;
  55 import com.owncloud.android.ui.activity.OnEnforceableRefreshListener;
  56 import com.owncloud.android.ui.adapter.FileListListAdapter;
  57 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  58 import com.owncloud.android.ui.dialog.FileActionsDialogFragment;
  59 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  60 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  61 import com.owncloud.android.ui.preview.PreviewImageFragment;
  62 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  63 import com.owncloud.android.ui.preview.PreviewTextFragment;
  64 import com.owncloud.android.utils.FileStorageUtils;
  65
  66 import java.io.File;
  67
  68 /**
  69  * A Fragment that lists all files and folders in a given path.
  70  *
  71  * TODO refactor to get rid of direct dependency on FileDisplayActivity
  72  */
  73 public class OCFileListFragment extends ExtendedListFragment implements FileActionsDialogFragment.FileActionsDialogFragmentListener {
  74
  75     private static final String TAG = OCFileListFragment.class.getSimpleName();
  76
  77     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  78             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  79
  80     public final static String ARG_JUST_FOLDERS = MY_PACKAGE + ".JUST_FOLDERS";
  81     public final static String ARG_ALLOW_CONTEXTUAL_ACTIONS = MY_PACKAGE + ".ALLOW_CONTEXTUAL";
  82
  83     private static final String KEY_FILE = MY_PACKAGE + ".extra.FILE";
  84
  85     private FileFragment.ContainerActivity mContainerActivity;
  86
  87     private OCFile mFile = null;
  88     private FileListListAdapter mAdapter;
  89     private boolean mJustFolders;
  90
  91     private OCFile mTargetFile;
  92
  93
  94
  95     /**
  96      * {@inheritDoc}
  97      */
  98     @Override
  99     public void onAttach(Activity activity) {
 100         super.onAttach(activity);
 101         Log_OC.e(TAG, "onAttach");
 102         try {
 103             mContainerActivity = (FileFragment.ContainerActivity) activity;
 104
 105         } catch (ClassCastException e) {
 106             throw new ClassCastException(activity.toString() + " must implement " +
 107                     FileFragment.ContainerActivity.class.getSimpleName());
 108         }
 109         try {
 110             setOnRefreshListener((OnEnforceableRefreshListener) activity);
 111
 112         } catch (ClassCastException e) {
 113             throw new ClassCastException(activity.toString() + " must implement " +
 114                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
 115         }
 116     }
 117
 118
 119     @Override
 120     public void onDetach() {
 121         setOnRefreshListener(null);
 122         mContainerActivity = null;
 123         super.onDetach();
 124     }
 125
 126     /**
 127      * {@inheritDoc}
 128      */
 129     @Override
 130     public void onActivityCreated(Bundle savedInstanceState) {
 131         super.onActivityCreated(savedInstanceState);
 132         Log_OC.e(TAG, "onActivityCreated() start");
 133
 134         if (savedInstanceState != null) {
 135             mFile = savedInstanceState.getParcelable(KEY_FILE);
 136         }
 137
 138         if (mJustFolders) {
 139             setFooterEnabled(false);
 140         } else {
 141             setFooterEnabled(true);
 142         }
 143
 144         Bundle args = getArguments();
 145         mJustFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 146         mAdapter = new FileListListAdapter(
 147                 mJustFolders,
 148                 getActivity(),
 149                 mContainerActivity
 150         );
 151         setListAdapter(mAdapter);
 152
 153         registerLongClickListener();
 154   }
 155
 156     private void registerLongClickListener() {
 157         getListView().setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
 158             public boolean onItemLongClick(AdapterView<?> arg0, View v,
 159                                            int index, long arg3) {
 160                 showFileAction(index);
 161                 return true;
 162             }
 163         });
 164     }
 165
 166
 167     private void showFileAction(int fileIndex) {
 168         Bundle args = getArguments();
 169         PopupMenu pm = new PopupMenu(getActivity(),null);
 170         Menu menu = pm.getMenu();
 171
 172         boolean allowContextualActions =
 173                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 174
 175         if (allowContextualActions) {
 176             MenuInflater inflater = getActivity().getMenuInflater();
 177
 178             inflater.inflate(R.menu.file_actions_menu, menu);
 179             OCFile targetFile = (OCFile) mAdapter.getItem(fileIndex);
 180
 181             if (mContainerActivity.getStorageManager() != null) {
 182                 FileMenuFilter mf = new FileMenuFilter(
 183                         targetFile,
 184                         mContainerActivity.getStorageManager().getAccount(),
 185                         mContainerActivity,
 186                         getActivity()
 187                 );
 188                 mf.filter(menu);
 189             }
 190
 191             /// TODO break this direct dependency on FileDisplayActivity... if possible
 192             MenuItem item = menu.findItem(R.id.action_open_file_with);
 193             FileFragment frag = ((FileDisplayActivity)getActivity()).getSecondFragment();
 194             if (frag != null && frag instanceof FileDetailFragment &&
 195                     frag.getFile().getFileId() == targetFile.getFileId()) {
 196                 item = menu.findItem(R.id.action_see_details);
 197                 if (item != null) {
 198                     item.setVisible(false);
 199                     item.setEnabled(false);
 200                 }
 201             }
 202
 203             FileActionsDialogFragment dialog = FileActionsDialogFragment.newInstance(menu, fileIndex, targetFile.getFileName());
 204             dialog.setTargetFragment(this, 0);
 205             dialog.show(getFragmentManager(), FileActionsDialogFragment.FTAG_FILE_ACTIONS);
 206         }
 207     }
 208
 209     /**
 210      * Saves the current listed folder.
 211      */
 212     @Override
 213     public void onSaveInstanceState(Bundle outState) {
 214         super.onSaveInstanceState(outState);
 215         outState.putParcelable(KEY_FILE, mFile);
 216     }
 217
 218     /**
 219      * Call this, when the user presses the up button.
 220      *
 221      * Tries to move up the current folder one level. If the parent folder was removed from the
 222      * database, it continues browsing up until finding an existing folders.
 223      * <p/>
 224      * return       Count of folder levels browsed up.
 225      */
 226     public int onBrowseUp() {
 227         OCFile parentDir = null;
 228         int moveCount = 0;
 229
 230         if (mFile != null) {
 231             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 232
 233             String parentPath = null;
 234             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 235                 parentPath = new File(mFile.getRemotePath()).getParent();
 236                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 237                         parentPath + OCFile.PATH_SEPARATOR;
 238                 parentDir = storageManager.getFileByPath(parentPath);
 239                 moveCount++;
 240             } else {
 241                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 242             }
 243             while (parentDir == null) {
 244                 parentPath = new File(parentPath).getParent();
 245                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 246                         parentPath + OCFile.PATH_SEPARATOR;
 247                 parentDir = storageManager.getFileByPath(parentPath);
 248                 moveCount++;
 249             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 250             mFile = parentDir;
 251
 252             // TODO Enable when "On Device" is recovered ?
 253             listDirectory(mFile /*, MainApp.getOnlyOnDevice()*/);
 254
 255             onRefresh(false);
 256
 257             // restore index and top position
 258             restoreIndexAndTopPosition();
 259
 260         }   // else - should never happen now
 261
 262         return moveCount;
 263     }
 264
 265     @Override
 266     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 267         OCFile file = (OCFile) mAdapter.getItem(position);
 268         if (file != null) {
 269             if (file.isFolder()) {
 270                 // update state and view of this fragment
 271                 // TODO Enable when "On Device" is recovered ?
 272                 listDirectory(file/*, MainApp.getOnlyOnDevice()*/);
 273                 // then, notify parent activity to let it update its state and view
 274                 mContainerActivity.onBrowsedDownTo(file);
 275                 // save index and top position
 276                 saveIndexAndTopPosition(position);
 277
 278             } else { /// Click on a file
 279                 if (PreviewImageFragment.canBePreviewed(file)) {
 280                     // preview image - it handles the download, if needed
 281                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 282                 } else if (PreviewTextFragment.canBePreviewed(file)){
 283                     ((FileDisplayActivity)mContainerActivity).startTextPreview(file);
 284                 } else if (PreviewMediaFragment.canBePreviewed(file)) {
 285                         // media preview
 286                         ((FileDisplayActivity) mContainerActivity).startMediaPreview(file, 0, true);
 287                     } else if (file.isDown()) {
 288                         mContainerActivity.getFileOperationsHelper().openFile(file);
 289                     }
 290                 else {
 291                     // automatic download, preview on finish
 292                     ((FileDisplayActivity) mContainerActivity).startDownloadForPreview(file);
 293                 }
 294
 295             }
 296
 297         } else {
 298             Log_OC.d(TAG, "Null object in ListAdapter!!");
 299         }
 300
 301     }
 302
 303     /**
 304      * {@inheritDoc}
 305      */
 306     @Override
 307     public void onCreateContextMenu(
 308             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 309         Bundle args = getArguments();
 310         boolean allowContextualActions =
 311                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 312         if (allowContextualActions) {
 313             MenuInflater inflater = getActivity().getMenuInflater();
 314             inflater.inflate(R.menu.file_actions_menu, menu);
 315             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 316             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 317
 318             if (mContainerActivity.getStorageManager() != null) {
 319                 FileMenuFilter mf = new FileMenuFilter(
 320                     targetFile,
 321                     mContainerActivity.getStorageManager().getAccount(),
 322                     mContainerActivity,
 323                     getActivity()
 324                 );
 325                 mf.filter(menu);
 326             }
 327
 328             /// TODO break this direct dependency on FileDisplayActivity... if possible
 329             MenuItem item = menu.findItem(R.id.action_open_file_with);
 330             FileFragment frag = ((FileDisplayActivity)getActivity()).getSecondFragment();
 331             if (frag != null && frag instanceof FileDetailFragment &&
 332                     frag.getFile().getFileId() == targetFile.getFileId()) {
 333                 item = menu.findItem(R.id.action_see_details);
 334                 if (item != null) {
 335                     item.setVisible(false);
 336                     item.setEnabled(false);
 337                 }
 338             }
 339         }
 340     }
 341
 342     /**
 343      * {@inheritDoc}
 344      */
 345     @Override
 346     public boolean onFileActionChosen(int menuId, int filePosition) {
 347         mTargetFile = (OCFile) mAdapter.getItem(filePosition);
 348         switch (menuId) {
 349             case R.id.action_share_file: {
 350                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 351                 return true;
 352             }
 353             case R.id.action_open_file_with: {
 354                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 355                 return true;
 356             }
 357             case R.id.action_unshare_file: {
 358                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 359                 return true;
 360             }
 361             case R.id.action_rename_file: {
 362                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 363                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 364                 return true;
 365             }
 366             case R.id.action_remove_file: {
 367                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 368                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 369                 return true;
 370             }
 371             case R.id.action_download_file:
 372             case R.id.action_sync_file: {
 373                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 374                 return true;
 375             }
 376             case R.id.action_cancel_sync: {
 377                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 378                 return true;
 379             }
 380             case R.id.action_see_details: {
 381                 mContainerActivity.showDetails(mTargetFile);
 382                 return true;
 383             }
 384             case R.id.action_send_file: {
 385                 // Obtain the file
 386                 if (!mTargetFile.isDown()) {  // Download the file
 387                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 388                     ((FileDisplayActivity) mContainerActivity).startDownloadForSending(mTargetFile);
 389
 390                 } else {
 391                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 392                 }
 393                 return true;
 394             }
 395             case R.id.action_stream_file: {
 396                 Account account = ((FileActivity)mContainerActivity).getAccount();
 397                 Context context = MainApp.getAppContext();
 398                 String uri = PreviewMediaFragment.generateUrlWithCredentials(account, context, mTargetFile);
 399                 MediaService.streamWithExternalApp(uri, getActivity()).show();
 400
 401                 return true;
 402             }
 403             case R.id.action_move: {
 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_MOVE_FILES);
 409                 return true;
 410             }
 411             case R.id.action_favorite_file: {
 412                 mContainerActivity.getFileOperationsHelper().toggleFavorite(mTargetFile, true);
 413                 return true;
 414             }
 415             case R.id.action_unfavorite_file: {
 416                 mContainerActivity.getFileOperationsHelper().toggleFavorite(mTargetFile, false);
 417                 return true;
 418             }
 419             case R.id.action_copy:
 420                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 421
 422                 // Pass mTargetFile that contains info of selected file/folder
 423                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 424                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_COPY_FILES);
 425                 return true;
 426             default:
 427                 return false;
 428         }
 429     }
 430
 431     /**
 432      * {@inhericDoc}
 433      */
 434     @Override
 435     public boolean onContextItemSelected (MenuItem item) {
 436         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 437         boolean matched = onFileActionChosen(item.getItemId(), ((AdapterContextMenuInfo) item.getMenuInfo()).position);
 438         if(!matched) {
 439             return super.onContextItemSelected(item);
 440         } else {
 441             return matched;
 442         }
 443     }
 444
 445
 446     /**
 447      * Use this to query the {@link OCFile} that is currently
 448      * being displayed by this fragment
 449      *
 450      * @return The currently viewed OCFile
 451      */
 452     public OCFile getCurrentFile() {
 453         return mFile;
 454     }
 455
 456     /**
 457      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 458      */
 459     public void listDirectory(/*boolean onlyOnDevice*/){
 460         listDirectory(null);
 461         // TODO Enable when "On Device" is recovered ?
 462         // listDirectory(null, onlyOnDevice);
 463     }
 464
 465     public void refreshDirectory(){
 466         // TODO Enable when "On Device" is recovered ?
 467         listDirectory(getCurrentFile()/*, MainApp.getOnlyOnDevice()*/);
 468     }
 469
 470     /**
 471      * Lists the given directory on the view. When the input parameter is null,
 472      * it will either refresh the last known directory. list the root
 473      * if there never was a directory.
 474      *
 475      * @param directory File to be listed
 476      */
 477     public void listDirectory(OCFile directory/*, boolean onlyOnDevice*/) {
 478         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 479         if (storageManager != null) {
 480
 481             // Check input parameters for null
 482             if (directory == null) {
 483                 if (mFile != null) {
 484                     directory = mFile;
 485                 } else {
 486                     directory = storageManager.getFileByPath("/");
 487                     if (directory == null) return; // no files, wait for sync
 488                 }
 489             }
 490
 491
 492             // If that's not a directory -> List its parent
 493             if (!directory.isFolder()) {
 494                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 495                 directory = storageManager.getFileById(directory.getParentId());
 496             }
 497
 498             // TODO Enable when "On Device" is recovered ?
 499             mAdapter.swapDirectory(directory, storageManager/*, onlyOnDevice*/);
 500             if (mFile == null || !mFile.equals(directory)) {
 501                 mCurrentListView.setSelection(0);
 502             }
 503             mFile = directory;
 504
 505             updateLayout();
 506
 507         }
 508     }
 509
 510     private void updateLayout() {
 511         if (!mJustFolders) {
 512             int filesCount = 0, foldersCount = 0, imagesCount = 0;
 513             int count = mAdapter.getCount();
 514             OCFile file;
 515             for (int i=0; i < count ; i++) {
 516                 file = (OCFile) mAdapter.getItem(i);
 517                 if (file.isFolder()) {
 518                     foldersCount++;
 519                 } else {
 520                     if (!file.isHidden()) {
 521                         filesCount++;
 522
 523                         if (file.isImage()) {
 524                             imagesCount++;
 525                         }
 526                     }
 527                 }
 528             }
 529             // set footer text
 530             setFooterText(generateFooterText(filesCount, foldersCount));
 531
 532             // decide grid vs list view
 533             OwnCloudVersion version = AccountUtils.getServerVersion(
 534                     ((FileActivity)mContainerActivity).getAccount());
 535             if (version != null && version.supportsRemoteThumbnails() &&
 536                 imagesCount > 0 && imagesCount == filesCount) {
 537                 switchToGridView();
 538                 registerLongClickListener();
 539             } else {
 540                 switchToListView();
 541             }
 542         }
 543     }
 544
 545     private String generateFooterText(int filesCount, int foldersCount) {
 546         String output;
 547         if (filesCount <= 0) {
 548             if (foldersCount <= 0) {
 549                 output = "";
 550
 551             } else if (foldersCount == 1) {
 552                 output = getResources().getString(R.string.file_list__footer__folder);
 553
 554             } else { // foldersCount > 1
 555                 output = getResources().getString(R.string.file_list__footer__folders, foldersCount);
 556             }
 557
 558         } else if (filesCount == 1) {
 559             if (foldersCount <= 0) {
 560                 output = getResources().getString(R.string.file_list__footer__file);
 561
 562             } else if (foldersCount == 1) {
 563                 output = getResources().getString(R.string.file_list__footer__file_and_folder);
 564
 565             } else { // foldersCount > 1
 566                 output = getResources().getString(R.string.file_list__footer__file_and_folders, foldersCount);
 567             }
 568         } else {    // filesCount > 1
 569             if (foldersCount <= 0) {
 570                 output = getResources().getString(R.string.file_list__footer__files, filesCount);
 571
 572             } else if (foldersCount == 1) {
 573                 output = getResources().getString(R.string.file_list__footer__files_and_folder, filesCount);
 574
 575             } else { // foldersCount > 1
 576                 output = getResources().getString(
 577                         R.string.file_list__footer__files_and_folders, filesCount, foldersCount
 578                 );
 579
 580             }
 581         }
 582         return output;
 583     }
 584
 585     public void sortByName(boolean descending) {
 586         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 587     }
 588
 589     public void sortByDate(boolean descending) {
 590         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 591     }
 592
 593     public void sortBySize(boolean descending) {
 594         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 595     }
 596 }