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 java.io.File;
  26
  27 import android.app.Activity;
  28 import android.content.Intent;
  29 import android.os.Bundle;
  30 import android.support.v4.widget.SwipeRefreshLayout;
  31 import android.view.ContextMenu;
  32 import android.view.Menu;
  33 import android.view.MenuInflater;
  34 import android.view.MenuItem;
  35 import android.view.View;
  36 import android.widget.AdapterView;
  37 import android.widget.AdapterView.AdapterContextMenuInfo;
  38 import android.widget.PopupMenu;
  39
  40 import com.owncloud.android.R;
  41 import com.owncloud.android.authentication.AccountUtils;
  42 import com.owncloud.android.datamodel.FileDataStorageManager;
  43 import com.owncloud.android.datamodel.OCFile;
  44 import com.owncloud.android.files.FileMenuFilter;
  45 import com.owncloud.android.lib.common.utils.Log_OC;
  46 import com.owncloud.android.lib.resources.status.OwnCloudVersion;
  47 import com.owncloud.android.ui.activity.FileActivity;
  48 import com.owncloud.android.ui.activity.FileDisplayActivity;
  49 import com.owncloud.android.ui.activity.FolderPickerActivity;
  50 import com.owncloud.android.ui.activity.OnEnforceableRefreshListener;
  51 import com.owncloud.android.ui.adapter.FileListListAdapter;
  52 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  53 import com.owncloud.android.ui.dialog.FileActionsDialogFragment;
  54 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  55 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  56 import com.owncloud.android.ui.preview.PreviewImageFragment;
  57 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  58 import com.owncloud.android.utils.DialogMenuItem;
  59 import com.owncloud.android.utils.FileStorageUtils;
  60 import com.owncloud.android.ui.preview.PreviewTextFragment;
  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);
 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      *
 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             // TODO Enable when "On Device" is recovered ?
 247             listDirectory(mFile /*, MainApp.getOnlyOnDevice()*/);
 248
 249             onRefresh(false);
 250
 251             // restore index and top position
 252             restoreIndexAndTopPosition();
 253
 254         }   // else - should never happen now
 255
 256         return moveCount;
 257     }
 258
 259     @Override
 260     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 261         OCFile file = (OCFile) mAdapter.getItem(position);
 262         if (file != null) {
 263             if (file.isFolder()) {
 264                 // update state and view of this fragment
 265                 // TODO Enable when "On Device" is recovered ?
 266                 listDirectory(file/*, MainApp.getOnlyOnDevice()*/);
 267                 // then, notify parent activity to let it update its state and view
 268                 mContainerActivity.onBrowsedDownTo(file);
 269                 // save index and top position
 270                 saveIndexAndTopPosition(position);
 271
 272             } else { /// Click on a file
 273                 if (PreviewImageFragment.canBePreviewed(file)) {
 274                     // preview image - it handles the download, if needed
 275                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 276                 } else if (PreviewTextFragment.canBePreviewed(file)){
 277                     ((FileDisplayActivity)mContainerActivity).startTextPreview(file);
 278                 } else if (file.isDown()) {
 279                     if (PreviewMediaFragment.canBePreviewed(file)) {
 280                         // media preview
 281                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 282                     } else {
 283                         mContainerActivity.getFileOperationsHelper().openFile(file);
 284                     }
 285
 286                 } else {
 287                     // automatic download, preview on finish
 288                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 289                 }
 290
 291             }
 292
 293         } else {
 294             Log_OC.d(TAG, "Null object in ListAdapter!!");
 295         }
 296
 297     }
 298
 299     /**
 300      * {@inheritDoc}
 301      */
 302     @Override
 303     public void onCreateContextMenu (
 304             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 305         Bundle args = getArguments();
 306         boolean allowContextualActions =
 307                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 308         if (allowContextualActions) {
 309             MenuInflater inflater = getActivity().getMenuInflater();
 310             inflater.inflate(R.menu.file_actions_menu, menu);
 311             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 312             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 313
 314             if (mContainerActivity.getStorageManager() != null) {
 315                 FileMenuFilter mf = new FileMenuFilter(
 316                     targetFile,
 317                     mContainerActivity.getStorageManager().getAccount(),
 318                     mContainerActivity,
 319                     getActivity()
 320                 );
 321                 mf.filter(menu);
 322             }
 323
 324             /// TODO break this direct dependency on FileDisplayActivity... if possible
 325             MenuItem item = menu.findItem(R.id.action_open_file_with);
 326             FileFragment frag = ((FileDisplayActivity)getActivity()).getSecondFragment();
 327             if (frag != null && frag instanceof FileDetailFragment &&
 328                     frag.getFile().getFileId() == targetFile.getFileId()) {
 329                 item = menu.findItem(R.id.action_see_details);
 330                 if (item != null) {
 331                     item.setVisible(false);
 332                     item.setEnabled(false);
 333                 }
 334             }
 335         }
 336     }
 337
 338     /**
 339      * {@inheritDoc}
 340      */
 341     @Override
 342     public boolean onFileActionChosen(int menuId, int filePosition) {
 343         mTargetFile = (OCFile) mAdapter.getItem(filePosition);
 344         switch (menuId) {
 345             case R.id.action_share_file: {
 346                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 347                 return true;
 348             }
 349             case R.id.action_open_file_with: {
 350                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 351                 return true;
 352             }
 353             case R.id.action_unshare_file: {
 354                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 355                 return true;
 356             }
 357             case R.id.action_rename_file: {
 358                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 359                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 360                 return true;
 361             }
 362             case R.id.action_remove_file: {
 363                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 364                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 365                 return true;
 366             }
 367             case R.id.action_download_file:
 368             case R.id.action_sync_file: {
 369                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 370                 return true;
 371             }
 372             case R.id.action_cancel_download:
 373             case R.id.action_cancel_upload: {
 374                 ((FileDisplayActivity) mContainerActivity).cancelTransference(mTargetFile);
 375                 return true;
 376             }
 377             case R.id.action_see_details: {
 378                 mContainerActivity.showDetails(mTargetFile);
 379                 return true;
 380             }
 381             case R.id.action_send_file: {
 382                 // Obtain the file
 383                 if (!mTargetFile.isDown()) {  // Download the file
 384                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 385                     ((FileDisplayActivity) mContainerActivity).startDownloadForSending(mTargetFile);
 386
 387                 } else {
 388                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 389                 }
 390                 return true;
 391             }
 392             case R.id.action_move: {
 393                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 394
 395                 // Pass mTargetFile that contains info of selected file/folder
 396                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 397                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 398                 return true;
 399             }
 400             case R.id.action_favorite_file: {
 401                 mContainerActivity.getFileOperationsHelper().toggleFavorite(mTargetFile, true);
 402                 return true;
 403             }
 404             case R.id.action_unfavorite_file: {
 405                 mContainerActivity.getFileOperationsHelper().toggleFavorite(mTargetFile, false);
 406                 return true;
 407             }
 408             default:
 409                 return false;
 410         }
 411     }
 412
 413     /**
 414      * {@inhericDoc}
 415      */
 416     @Override
 417     public boolean onContextItemSelected (MenuItem item) {
 418         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 419         boolean matched = onFileActionChosen(item.getItemId(), ((AdapterContextMenuInfo) item.getMenuInfo()).position);
 420         if(!matched) {
 421             return super.onContextItemSelected(item);
 422         } else {
 423             return matched;
 424         }
 425     }
 426
 427
 428     /**
 429      * Use this to query the {@link OCFile} that is currently
 430      * being displayed by this fragment
 431      * @return The currently viewed OCFile
 432      */
 433     public OCFile getCurrentFile(){
 434         return mFile;
 435     }
 436
 437     /**
 438      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 439      */
 440     public void listDirectory(/*boolean onlyOnDevice*/){
 441         listDirectory(null);
 442         // TODO Enable when "On Device" is recovered ?
 443         // listDirectory(null, onlyOnDevice);
 444     }
 445
 446     public void refreshDirectory(){
 447         // TODO Enable when "On Device" is recovered ?
 448         listDirectory(getCurrentFile()/*, MainApp.getOnlyOnDevice()*/);
 449     }
 450
 451     /**
 452      * Lists the given directory on the view. When the input parameter is null,
 453      * it will either refresh the last known directory. list the root
 454      * if there never was a directory.
 455      *
 456      * @param directory File to be listed
 457      */
 458     public void listDirectory(OCFile directory/*, boolean onlyOnDevice*/) {
 459         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 460         if (storageManager != null) {
 461
 462             // Check input parameters for null
 463             if(directory == null){
 464                 if(mFile != null){
 465                     directory = mFile;
 466                 } else {
 467                     directory = storageManager.getFileByPath("/");
 468                     if (directory == null) return; // no files, wait for sync
 469                 }
 470             }
 471
 472
 473             // If that's not a directory -> List its parent
 474             if(!directory.isFolder()){
 475                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 476                 directory = storageManager.getFileById(directory.getParentId());
 477             }
 478
 479             // TODO Enable when "On Device" is recovered ?
 480             mAdapter.swapDirectory(directory, storageManager/*, onlyOnDevice*/);
 481             if (mFile == null || !mFile.equals(directory)) {
 482                 mCurrentListView.setSelection(0);
 483             }
 484             mFile = directory;
 485
 486             updateLayout();
 487
 488         }
 489     }
 490
 491     private void updateLayout() {
 492         if (!mJustFolders) {
 493             int filesCount = 0, foldersCount = 0, imagesCount = 0;
 494             int count = mAdapter.getCount();
 495             OCFile file;
 496             for (int i=0; i < count ; i++) {
 497                 file = (OCFile) mAdapter.getItem(i);
 498                 if (file.isFolder()) {
 499                     foldersCount++;
 500                 } else {
 501                     if (!file.isHidden()) {
 502                         filesCount++;
 503
 504                         if (file.isImage()) {
 505                             imagesCount++;
 506                         }
 507                     }
 508                 }
 509             }
 510             // set footer text
 511             setFooterText(generateFooterText(filesCount, foldersCount));
 512
 513             // decide grid vs list view
 514             OwnCloudVersion version = AccountUtils.getServerVersion(
 515                     ((FileActivity)mContainerActivity).getAccount());
 516             if (version != null && version.supportsRemoteThumbnails() &&
 517                 imagesCount > 0 && imagesCount == filesCount) {
 518                 switchToGridView();
 519                 registerLongClickListener();
 520             } else {
 521                 switchToListView();
 522             }
 523         }
 524     }
 525
 526     private String generateFooterText(int filesCount, int foldersCount) {
 527         String output;
 528         if (filesCount <= 0) {
 529             if (foldersCount <= 0) {
 530                 output = "";
 531
 532             } else if (foldersCount == 1) {
 533                 output = getResources().getString(R.string.file_list__footer__folder);
 534
 535             } else { // foldersCount > 1
 536                 output = getResources().getString(R.string.file_list__footer__folders, foldersCount);
 537             }
 538
 539         } else if (filesCount == 1) {
 540             if (foldersCount <= 0) {
 541                 output = getResources().getString(R.string.file_list__footer__file);
 542
 543             } else if (foldersCount == 1) {
 544                 output = getResources().getString(R.string.file_list__footer__file_and_folder);
 545
 546             } else { // foldersCount > 1
 547                 output = getResources().getString(R.string.file_list__footer__file_and_folders, foldersCount);
 548             }
 549         } else {    // filesCount > 1
 550             if (foldersCount <= 0) {
 551                 output = getResources().getString(R.string.file_list__footer__files, filesCount);
 552
 553             } else if (foldersCount == 1) {
 554                 output = getResources().getString(R.string.file_list__footer__files_and_folder, filesCount);
 555
 556             } else { // foldersCount > 1
 557                 output = getResources().getString(
 558                         R.string.file_list__footer__files_and_folders, filesCount, foldersCount
 559                 );
 560
 561             }
 562         }
 563         return output;
 564     }
 565
 566     public void sortByName(boolean descending) {
 567         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 568     }
 569
 570     public void sortByDate(boolean descending) {
 571         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 572     }
 573
 574     public void sortBySize(boolean descending) {
 575         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 576     }
 577 }