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