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