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.LayoutInflater;
  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.TextView;
  39
  40 import com.owncloud.android.MainApp;
  41 import com.owncloud.android.R;
  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.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 refactorize 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 final static Double THUMBNAIL_THRESHOLD = 0.5;
  75
  76     private FileFragment.ContainerActivity mContainerActivity;
  77
  78     private OCFile mFile = null;
  79     private FileListListAdapter mAdapter;
  80     private boolean mJustFolders;
  81
  82     private OCFile mTargetFile;
  83
  84
  85
  86     /**
  87      * {@inheritDoc}
  88      */
  89     @Override
  90     public void onAttach(Activity activity) {
  91         super.onAttach(activity);
  92         Log_OC.e(TAG, "onAttach");
  93         try {
  94             mContainerActivity = (FileFragment.ContainerActivity) activity;
  95
  96         } catch (ClassCastException e) {
  97             throw new ClassCastException(activity.toString() + " must implement " +
  98                     FileFragment.ContainerActivity.class.getSimpleName());
  99         }
 100         try {
 101             setOnRefreshListener((OnEnforceableRefreshListener) activity);
 102
 103         } catch (ClassCastException e) {
 104             throw new ClassCastException(activity.toString() + " must implement " +
 105                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
 106         }
 107     }
 108
 109
 110     @Override
 111     public void onDetach() {
 112         setOnRefreshListener(null);
 113         mContainerActivity = null;
 114         super.onDetach();
 115     }
 116
 117     /**
 118      * {@inheritDoc}
 119      */
 120     @Override
 121     public void onActivityCreated(Bundle savedInstanceState) {
 122         super.onActivityCreated(savedInstanceState);
 123         Log_OC.e(TAG, "onActivityCreated() start");
 124
 125         if (savedInstanceState != null) {
 126             mFile = savedInstanceState.getParcelable(KEY_FILE);
 127         }
 128
 129         if (mJustFolders) {
 130             setFooterEnabled(false);
 131         } else {
 132             setFooterEnabled(true);
 133         }
 134
 135         Bundle args = getArguments();
 136         mJustFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 137         mAdapter = new FileListListAdapter(
 138                 mJustFolders,
 139                 getSherlockActivity(),
 140                 mContainerActivity
 141                 );
 142         setListAdapter(mAdapter);
 143
 144         registerForContextMenu();
 145   }
 146
 147     /**
 148      * Saves the current listed folder.
 149      */
 150     @Override
 151     public void onSaveInstanceState (Bundle outState) {
 152         super.onSaveInstanceState(outState);
 153         outState.putParcelable(KEY_FILE, mFile);
 154     }
 155
 156     /**
 157      * Call this, when the user presses the up button.
 158      *
 159      * Tries to move up the current folder one level. If the parent folder was removed from the
 160      * database, it continues browsing up until finding an existing folders.
 161      *
 162      * return       Count of folder levels browsed up.
 163      */
 164     public int onBrowseUp() {
 165         OCFile parentDir = null;
 166         int moveCount = 0;
 167
 168         if(mFile != null){
 169             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 170
 171             String parentPath = null;
 172             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 173                 parentPath = new File(mFile.getRemotePath()).getParent();
 174                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 175                         parentPath + OCFile.PATH_SEPARATOR;
 176                 parentDir = storageManager.getFileByPath(parentPath);
 177                 moveCount++;
 178             } else {
 179                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 180             }
 181             while (parentDir == null) {
 182                 parentPath = new File(parentPath).getParent();
 183                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 184                         parentPath + OCFile.PATH_SEPARATOR;
 185                 parentDir = storageManager.getFileByPath(parentPath);
 186                 moveCount++;
 187             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 188             mFile = parentDir;
 189
 190             listDirectory(mFile, MainApp.getOnlyOnDevice());
 191
 192             onRefresh(false);
 193
 194             // restore index and top position
 195             restoreIndexAndTopPosition();
 196
 197         }   // else - should never happen now
 198
 199         return moveCount;
 200     }
 201
 202     @Override
 203     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 204         OCFile file = (OCFile) mAdapter.getItem(position);
 205         if (file != null) {
 206             if (file.isFolder()) {
 207                 // update state and view of this fragment
 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
 227                 } else {
 228                     // automatic download, preview on finish
 229                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 230                 }
 231
 232             }
 233
 234         } else {
 235             Log_OC.d(TAG, "Null object in ListAdapter!!");
 236         }
 237
 238     }
 239
 240     /**
 241      * {@inheritDoc}
 242      */
 243     @Override
 244     public void onCreateContextMenu (
 245             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 246         super.onCreateContextMenu(menu, v, menuInfo);
 247         Bundle args = getArguments();
 248         boolean allowContextualActions =
 249                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 250         if (allowContextualActions) {
 251             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 252             inflater.inflate(R.menu.file_actions_menu, menu);
 253             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 254             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 255
 256             if (mContainerActivity.getStorageManager() != null) {
 257                 FileMenuFilter mf = new FileMenuFilter(
 258                     targetFile,
 259                     mContainerActivity.getStorageManager().getAccount(),
 260                     mContainerActivity,
 261                     getSherlockActivity()
 262                 );
 263                 mf.filter(menu);
 264             }
 265
 266             /// TODO break this direct dependency on FileDisplayActivity... if possible
 267             MenuItem item = menu.findItem(R.id.action_open_file_with);
 268             FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 269             if (frag != null && frag instanceof FileDetailFragment &&
 270                     frag.getFile().getFileId() == targetFile.getFileId()) {
 271                 item = menu.findItem(R.id.action_see_details);
 272                 if (item != null) {
 273                     item.setVisible(false);
 274                     item.setEnabled(false);
 275                 }
 276             }
 277         }
 278     }
 279
 280
 281     /**
 282      * {@inhericDoc}
 283      */
 284     @Override
 285     public boolean onContextItemSelected (MenuItem item) {
 286         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 287         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 288         switch (item.getItemId()) {
 289             case R.id.action_share_file: {
 290                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 291                 return true;
 292             }
 293             case R.id.action_open_file_with: {
 294                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 295                 return true;
 296             }
 297             case R.id.action_unshare_file: {
 298                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 299                 return true;
 300             }
 301             case R.id.action_rename_file: {
 302                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 303                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 304                 return true;
 305             }
 306             case R.id.action_remove_file: {
 307                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 308                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 309                 return true;
 310             }
 311             case R.id.action_download_file:
 312             case R.id.action_sync_file: {
 313                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 314                 return true;
 315             }
 316             case R.id.action_cancel_download:
 317             case R.id.action_cancel_upload: {
 318                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 319                 return true;
 320             }
 321             case R.id.action_see_details: {
 322                 mContainerActivity.showDetails(mTargetFile);
 323                 return true;
 324             }
 325             case R.id.action_send_file: {
 326                 // Obtain the file
 327                 if (!mTargetFile.isDown()) {  // Download the file
 328                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 329                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 330
 331                 } else {
 332                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 333                 }
 334                 return true;
 335             }
 336             case R.id.action_move: {
 337                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 338
 339                 // Pass mTargetFile that contains info of selected file/folder
 340                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 341                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 342                 return true;
 343             }
 344             default:
 345                 return super.onContextItemSelected(item);
 346         }
 347     }
 348
 349
 350     /**
 351      * Use this to query the {@link OCFile} that is currently
 352      * being displayed by this fragment
 353      * @return The currently viewed OCFile
 354      */
 355     public OCFile getCurrentFile(){
 356         return mFile;
 357     }
 358
 359     /**
 360      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 361      */
 362     public void listDirectory(boolean onlyOnDevice){
 363         listDirectory(null, onlyOnDevice);
 364     }
 365
 366     public void refreshDirectory(){
 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             mAdapter.swapDirectory(directory, storageManager, onlyOnDevice);
 399             if (mFile == null || !mFile.equals(directory)) {
 400                 mCurrentListView.setSelection(0);
 401             }
 402             mFile = directory;
 403
 404             updateLayout();
 405
 406         }
 407     }
 408
 409     private void updateLayout() {
 410         if (!mJustFolders) {
 411             int filesCount = 0, foldersCount = 0, imagesCount = 0;
 412             int count = mAdapter.getCount();
 413             OCFile file;
 414             for (int i=0; i < count ; i++) {
 415                 file = (OCFile) mAdapter.getItem(i);
 416                 if (file.isFolder()) {
 417                     foldersCount++;
 418                 } else {
 419                     filesCount++;
 420                     if (file.isImage()){
 421                         imagesCount++;
 422                     }
 423                 }
 424             }
 425             // set footer text
 426             setFooterText(generateFooterText(filesCount, foldersCount));
 427
 428             // decide grid vs list view
 429             if (((double)imagesCount / (double)filesCount) >= THUMBNAIL_THRESHOLD) {
 430                 switchToGridView();
 431             } else {
 432                 switchToListView();
 433             }
 434         }
 435     }
 436
 437     private String generateFooterText(int filesCount, int foldersCount) {
 438         String output = "";
 439         if (filesCount > 0){
 440             if (filesCount == 1) {
 441                 output = output + filesCount + " " + getResources().getString(R.string.file_list_file);
 442             } else {
 443                 output = output + filesCount + " " + getResources().getString(R.string.file_list_files);
 444             }
 445         }
 446         if (foldersCount > 0 && filesCount > 0){
 447             output = output + ", ";
 448         }
 449         if (foldersCount == 1) {
 450             output = output + foldersCount + " " + getResources().getString(R.string.file_list_folder);
 451         } else if (foldersCount > 1) {
 452             output = output + foldersCount + " " + getResources().getString(R.string.file_list_folders);
 453         }
 454
 455         return output;
 456     }
 457
 458
 459     public void sortByName(boolean descending) {
 460         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 461     }
 462
 463     public void sortByDate(boolean descending) {
 464         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 465     }
 466
 467     public void sortBySize(boolean descending) {
 468         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 469     }
 470
 471
 472
 473 }