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