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.MenuInflater;
  33 import android.view.MenuItem;
  34 import android.view.View;
  35 import android.widget.AdapterView;
  36 import android.widget.AdapterView.AdapterContextMenuInfo;
  37
  38 import com.owncloud.android.R;
  39 import com.owncloud.android.datamodel.FileDataStorageManager;
  40 import com.owncloud.android.datamodel.OCFile;
  41 import com.owncloud.android.files.FileMenuFilter;
  42 import com.owncloud.android.lib.common.utils.Log_OC;
  43 import com.owncloud.android.ui.activity.FileDisplayActivity;
  44 import com.owncloud.android.ui.activity.FolderPickerActivity;
  45 import com.owncloud.android.ui.activity.OnEnforceableRefreshListener;
  46 import com.owncloud.android.ui.adapter.FileListListAdapter;
  47 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  48 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  49 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  50 import com.owncloud.android.ui.preview.PreviewImageFragment;
  51 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  52 import com.owncloud.android.utils.FileStorageUtils;
  53
  54 /**
  55  * A Fragment that lists all files and folders in a given path.
  56  *
  57  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  58  */
  59 public class OCFileListFragment extends ExtendedListFragment {
  60
  61     private static final String TAG = OCFileListFragment.class.getSimpleName();
  62
  63     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  64             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  65
  66     public final static String ARG_JUST_FOLDERS = MY_PACKAGE + ".JUST_FOLDERS";
  67     public final static String ARG_ALLOW_CONTEXTUAL_ACTIONS = MY_PACKAGE + ".ALLOW_CONTEXTUAL";
  68
  69     private static final String KEY_FILE = MY_PACKAGE + ".extra.FILE";
  70
  71     private final static Double THUMBNAIL_THRESHOLD = 0.5;
  72
  73     private FileFragment.ContainerActivity mContainerActivity;
  74
  75     private OCFile mFile = null;
  76     private FileListListAdapter mAdapter;
  77     private boolean mJustFolders;
  78
  79     private OCFile mTargetFile;
  80
  81
  82
  83     /**
  84      * {@inheritDoc}
  85      */
  86     @Override
  87     public void onAttach(Activity activity) {
  88         super.onAttach(activity);
  89         Log_OC.e(TAG, "onAttach");
  90         try {
  91             mContainerActivity = (FileFragment.ContainerActivity) activity;
  92
  93         } catch (ClassCastException e) {
  94             throw new ClassCastException(activity.toString() + " must implement " +
  95                     FileFragment.ContainerActivity.class.getSimpleName());
  96         }
  97         try {
  98             setOnRefreshListener((OnEnforceableRefreshListener) activity);
  99
 100         } catch (ClassCastException e) {
 101             throw new ClassCastException(activity.toString() + " must implement " +
 102                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
 103         }
 104     }
 105
 106
 107     @Override
 108     public void onDetach() {
 109         setOnRefreshListener(null);
 110         mContainerActivity = null;
 111         super.onDetach();
 112     }
 113
 114     /**
 115      * {@inheritDoc}
 116      */
 117     @Override
 118     public void onActivityCreated(Bundle savedInstanceState) {
 119         super.onActivityCreated(savedInstanceState);
 120         Log_OC.e(TAG, "onActivityCreated() start");
 121
 122         if (savedInstanceState != null) {
 123             mFile = savedInstanceState.getParcelable(KEY_FILE);
 124         }
 125
 126         if (mJustFolders) {
 127             setFooterEnabled(false);
 128         } else {
 129             setFooterEnabled(true);
 130         }
 131
 132         Bundle args = getArguments();
 133         mJustFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 134         mAdapter = new FileListListAdapter(
 135                 mJustFolders,
 136                 getActivity(),
 137                 mContainerActivity
 138                 );
 139         setListAdapter(mAdapter);
 140
 141         registerForContextMenu();
 142   }
 143
 144     /**
 145      * Saves the current listed folder.
 146      */
 147     @Override
 148     public void onSaveInstanceState (Bundle outState) {
 149         super.onSaveInstanceState(outState);
 150         outState.putParcelable(KEY_FILE, mFile);
 151     }
 152
 153     /**
 154      * Call this, when the user presses the up button.
 155      *
 156      * Tries to move up the current folder one level. If the parent folder was removed from the
 157      * database, it continues browsing up until finding an existing folders.
 158      *
 159      * return       Count of folder levels browsed up.
 160      */
 161     public int onBrowseUp() {
 162         OCFile parentDir = null;
 163         int moveCount = 0;
 164
 165         if(mFile != null){
 166             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 167
 168             String parentPath = null;
 169             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 170                 parentPath = new File(mFile.getRemotePath()).getParent();
 171                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 172                         parentPath + OCFile.PATH_SEPARATOR;
 173                 parentDir = storageManager.getFileByPath(parentPath);
 174                 moveCount++;
 175             } else {
 176                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 177             }
 178             while (parentDir == null) {
 179                 parentPath = new File(parentPath).getParent();
 180                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 181                         parentPath + OCFile.PATH_SEPARATOR;
 182                 parentDir = storageManager.getFileByPath(parentPath);
 183                 moveCount++;
 184             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 185             mFile = parentDir;
 186
 187             // TODO Enable when "On Device" is recovered ?
 188             listDirectory(mFile /*, MainApp.getOnlyOnDevice()*/);
 189
 190             onRefresh(false);
 191
 192             // restore index and top position
 193             restoreIndexAndTopPosition();
 194
 195         }   // else - should never happen now
 196
 197         return moveCount;
 198     }
 199
 200     @Override
 201     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 202         OCFile file = (OCFile) mAdapter.getItem(position);
 203         if (file != null) {
 204             if (file.isFolder()) {
 205                 // update state and view of this fragment
 206                 // TODO Enable when "On Device" is recovered ?
 207                 listDirectory(file/*, MainApp.getOnlyOnDevice()*/);
 208                 // then, notify parent activity to let it update its state and view
 209                 mContainerActivity.onBrowsedDownTo(file);
 210                 // save index and top position
 211                 saveIndexAndTopPosition(position);
 212
 213             } else { /// Click on a file
 214                 if (PreviewImageFragment.canBePreviewed(file)) {
 215                     // preview image - it handles the download, if needed
 216                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 217
 218                 } else if (file.isDown()) {
 219                     if (PreviewMediaFragment.canBePreviewed(file)) {
 220                         // media preview
 221                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 222                     } else {
 223                         mContainerActivity.getFileOperationsHelper().openFile(file);
 224                     }
 225
 226                 } else {
 227                     // automatic download, preview on finish
 228                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 229                 }
 230
 231             }
 232
 233         } else {
 234             Log_OC.d(TAG, "Null object in ListAdapter!!");
 235         }
 236
 237     }
 238
 239     /**
 240      * {@inheritDoc}
 241      */
 242     @Override
 243     public void onCreateContextMenu (
 244             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 245         super.onCreateContextMenu(menu, v, menuInfo);
 246         Bundle args = getArguments();
 247         boolean allowContextualActions =
 248                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 249         if (allowContextualActions) {
 250             MenuInflater inflater = getActivity().getMenuInflater();
 251             inflater.inflate(R.menu.file_actions_menu, menu);
 252             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 253             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 254
 255             if (mContainerActivity.getStorageManager() != null) {
 256                 FileMenuFilter mf = new FileMenuFilter(
 257                     targetFile,
 258                     mContainerActivity.getStorageManager().getAccount(),
 259                     mContainerActivity,
 260                     getActivity()
 261                 );
 262                 mf.filter(menu);
 263             }
 264
 265             /// TODO break this direct dependency on FileDisplayActivity... if possible
 266             MenuItem item = menu.findItem(R.id.action_open_file_with);
 267             FileFragment frag = ((FileDisplayActivity)getActivity()).getSecondFragment();
 268             if (frag != null && frag instanceof FileDetailFragment &&
 269                     frag.getFile().getFileId() == targetFile.getFileId()) {
 270                 item = menu.findItem(R.id.action_see_details);
 271                 if (item != null) {
 272                     item.setVisible(false);
 273                     item.setEnabled(false);
 274                 }
 275             }
 276         }
 277     }
 278
 279
 280     /**
 281      * {@inhericDoc}
 282      */
 283     @Override
 284     public boolean onContextItemSelected (MenuItem item) {
 285         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 286         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 287         switch (item.getItemId()) {
 288             case R.id.action_share_file: {
 289                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 290                 return true;
 291             }
 292             case R.id.action_open_file_with: {
 293                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 294                 return true;
 295             }
 296             case R.id.action_unshare_file: {
 297                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 298                 return true;
 299             }
 300             case R.id.action_rename_file: {
 301                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 302                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 303                 return true;
 304             }
 305             case R.id.action_remove_file: {
 306                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 307                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 308                 return true;
 309             }
 310             case R.id.action_download_file:
 311             case R.id.action_sync_file: {
 312                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 313                 return true;
 314             }
 315             case R.id.action_cancel_download:
 316             case R.id.action_cancel_upload: {
 317                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 318                 return true;
 319             }
 320             case R.id.action_see_details: {
 321                 mContainerActivity.showDetails(mTargetFile);
 322                 return true;
 323             }
 324             case R.id.action_send_file: {
 325                 // Obtain the file
 326                 if (!mTargetFile.isDown()) {  // Download the file
 327                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 328                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 329
 330                 } else {
 331                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 332                 }
 333                 return true;
 334             }
 335             case R.id.action_move: {
 336                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 337
 338                 // Pass mTargetFile that contains info of selected file/folder
 339                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 340                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 341                 return true;
 342             }
 343             default:
 344                 return super.onContextItemSelected(item);
 345         }
 346     }
 347
 348
 349     /**
 350      * Use this to query the {@link OCFile} that is currently
 351      * being displayed by this fragment
 352      * @return The currently viewed OCFile
 353      */
 354     public OCFile getCurrentFile(){
 355         return mFile;
 356     }
 357
 358     /**
 359      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 360      */
 361     public void listDirectory(/*boolean onlyOnDevice*/){
 362         listDirectory(null);
 363         // TODO Enable when "On Device" is recovered ?
 364         // listDirectory(null, onlyOnDevice);
 365     }
 366
 367     public void refreshDirectory(){
 368         // TODO Enable when "On Device" is recovered ?
 369         listDirectory(getCurrentFile()/*, MainApp.getOnlyOnDevice()*/);
 370     }
 371
 372     /**
 373      * Lists the given directory on the view. When the input parameter is null,
 374      * it will either refresh the last known directory. list the root
 375      * if there never was a directory.
 376      *
 377      * @param directory File to be listed
 378      */
 379     public void listDirectory(OCFile directory/*, boolean onlyOnDevice*/) {
 380         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 381         if (storageManager != null) {
 382
 383             // Check input parameters for null
 384             if(directory == null){
 385                 if(mFile != null){
 386                     directory = mFile;
 387                 } else {
 388                     directory = storageManager.getFileByPath("/");
 389                     if (directory == null) return; // no files, wait for sync
 390                 }
 391             }
 392
 393
 394             // If that's not a directory -> List its parent
 395             if(!directory.isFolder()){
 396                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 397                 directory = storageManager.getFileById(directory.getParentId());
 398             }
 399
 400             // TODO Enable when "On Device" is recovered ?
 401             mAdapter.swapDirectory(directory, storageManager/*, onlyOnDevice*/);
 402             if (mFile == null || !mFile.equals(directory)) {
 403                 mCurrentListView.setSelection(0);
 404             }
 405             mFile = directory;
 406
 407             updateLayout();
 408
 409         }
 410     }
 411
 412     private void updateLayout() {
 413         if (!mJustFolders) {
 414             int filesCount = 0, foldersCount = 0, imagesCount = 0;
 415             int count = mAdapter.getCount();
 416             OCFile file;
 417             for (int i=0; i < count ; i++) {
 418                 file = (OCFile) mAdapter.getItem(i);
 419                 if (file.isFolder()) {
 420                     foldersCount++;
 421                 } else {
 422                     filesCount++;
 423                     if (file.isImage()){
 424                         imagesCount++;
 425                     }
 426                 }
 427             }
 428             // set footer text
 429             setFooterText(generateFooterText(filesCount, foldersCount));
 430
 431             // decide grid vs list view
 432             if (((double)imagesCount / (double)filesCount) >= THUMBNAIL_THRESHOLD) {
 433                 switchToGridView();
 434             } else {
 435                 switchToListView();
 436             }
 437         }
 438     }
 439
 440     private String generateFooterText(int filesCount, int foldersCount) {
 441         String output;
 442         if (filesCount <= 0) {
 443             if (foldersCount <= 0) {
 444                 output = "";
 445
 446             } else if (foldersCount == 1) {
 447                 output = getResources().getString(R.string.file_list__footer__folder);
 448
 449             } else { // foldersCount > 1
 450                 output = getResources().getString(R.string.file_list__footer__folders);
 451                 String.format(output, foldersCount);
 452
 453             }
 454
 455         } else if (filesCount == 1) {
 456             if (foldersCount <= 0) {
 457                 output = getResources().getString(R.string.file_list__footer__file);
 458
 459             } else if (foldersCount == 1) {
 460                 output = getResources().getString(R.string.file_list__footer__file_and_folder);
 461
 462             } else { // foldersCount > 1
 463                 output = getResources().getString(R.string.file_list__footer__file_and_folders);
 464                 String.format(output, foldersCount);
 465
 466             }
 467         } else {    // filesCount > 1
 468             if (foldersCount <= 0) {
 469                 output = getResources().getString(R.string.file_list__footer__files);
 470                 String.format(output, filesCount);
 471
 472             } else if (foldersCount == 1) {
 473                 output = getResources().getString(R.string.file_list__footer__files_and_folder);
 474                 String.format(output, filesCount);
 475
 476             } else { // foldersCount > 1
 477                 output = getResources().getString(R.string.file_list__footer__files_and_folders);
 478                 String.format(output, filesCount, foldersCount);
 479
 480             }
 481         }
 482         return output;
 483     }
 484
 485
 486     public void sortByName(boolean descending) {
 487         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 488     }
 489
 490     public void sortByDate(boolean descending) {
 491         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 492     }
 493
 494     public void sortBySize(boolean descending) {
 495         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 496     }
 497
 498
 499
 500 }