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                 } else {
 224                     // automatic download, preview on finish
 225                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 226                 }
 227
 228             }
 229
 230         } else {
 231             Log_OC.d(TAG, "Null object in ListAdapter!!");
 232         }
 233
 234     }
 235
 236     /**
 237      * {@inheritDoc}
 238      */
 239     @Override
 240     public void onCreateContextMenu (
 241             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 242         super.onCreateContextMenu(menu, v, menuInfo);
 243         Bundle args = getArguments();
 244         boolean allowContextualActions =
 245                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 246         if (allowContextualActions) {
 247             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 248             inflater.inflate(R.menu.file_actions_menu, menu);
 249             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 250             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 251
 252             if (mContainerActivity.getStorageManager() != null) {
 253                 FileMenuFilter mf = new FileMenuFilter(
 254                     targetFile,
 255                     mContainerActivity.getStorageManager().getAccount(),
 256                     mContainerActivity,
 257                     getSherlockActivity()
 258                 );
 259                 mf.filter(menu);
 260             }
 261
 262             /// TODO break this direct dependency on FileDisplayActivity... if possible
 263             MenuItem item = menu.findItem(R.id.action_open_file_with);
 264             FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 265             if (frag != null && frag instanceof FileDetailFragment &&
 266                     frag.getFile().getFileId() == targetFile.getFileId()) {
 267                 item = menu.findItem(R.id.action_see_details);
 268                 if (item != null) {
 269                     item.setVisible(false);
 270                     item.setEnabled(false);
 271                 }
 272             }
 273         }
 274     }
 275
 276
 277     /**
 278      * {@inhericDoc}
 279      */
 280     @Override
 281     public boolean onContextItemSelected (MenuItem item) {
 282         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 283         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 284         switch (item.getItemId()) {
 285             case R.id.action_share_file: {
 286                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 287                 return true;
 288             }
 289             case R.id.action_open_file_with: {
 290                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 291                 return true;
 292             }
 293             case R.id.action_unshare_file: {
 294                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 295                 return true;
 296             }
 297             case R.id.action_rename_file: {
 298                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 299                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 300                 return true;
 301             }
 302             case R.id.action_remove_file: {
 303                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 304                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 305                 return true;
 306             }
 307             case R.id.action_download_file:
 308             case R.id.action_sync_file: {
 309                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 310                 return true;
 311             }
 312             case R.id.action_cancel_download:
 313             case R.id.action_cancel_upload: {
 314                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 315                 return true;
 316             }
 317             case R.id.action_see_details: {
 318                 mContainerActivity.showDetails(mTargetFile);
 319                 return true;
 320             }
 321             case R.id.action_send_file: {
 322                 // Obtain the file
 323                 if (!mTargetFile.isDown()) {  // Download the file
 324                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 325                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 326
 327                 } else {
 328                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 329                 }
 330                 return true;
 331             }
 332             case R.id.action_move: {
 333                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 334
 335                 // Pass mTargetFile that contains info of selected file/folder
 336                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 337                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 338                 return true;
 339             }
 340             default:
 341                 return super.onContextItemSelected(item);
 342         }
 343     }
 344
 345
 346     /**
 347      * Use this to query the {@link OCFile} that is currently
 348      * being displayed by this fragment
 349      * @return The currently viewed OCFile
 350      */
 351     public OCFile getCurrentFile(){
 352         return mFile;
 353     }
 354
 355     /**
 356      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 357      */
 358     public void listDirectory(){
 359         listDirectory(null);
 360     }
 361
 362     /**
 363      * Lists the given directory on the view. When the input parameter is null,
 364      * it will either refresh the last known directory. list the root
 365      * if there never was a directory.
 366      *
 367      * @param directory File to be listed
 368      */
 369     public void listDirectory(OCFile directory) {
 370         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 371         if (storageManager != null) {
 372
 373             // Check input parameters for null
 374             if(directory == null){
 375                 if(mFile != null){
 376                     directory = mFile;
 377                 } else {
 378                     directory = storageManager.getFileByPath("/");
 379                     if (directory == null) return; // no files, wait for sync
 380                 }
 381             }
 382
 383
 384             // If that's not a directory -> List its parent
 385             if(!directory.isFolder()){
 386                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 387                 directory = storageManager.getFileById(directory.getParentId());
 388             }
 389
 390             mAdapter.swapDirectory(directory, storageManager);
 391             if (mFile == null || !mFile.equals(directory)) {
 392                 mCurrentListView.setSelection(0);
 393             }
 394             mFile = directory;
 395
 396             updateLayout();
 397
 398         }
 399     }
 400
 401     private void updateLayout() {
 402         if (!mJustFolders) {
 403             int filesCount = 0, foldersCount = 0, imagesCount = 0;
 404             int count = mAdapter.getCount();
 405             OCFile file;
 406             for (int i=0; i < count ; i++) {
 407                 file = (OCFile) mAdapter.getItem(i);
 408                 if (file.isFolder()) {
 409                     foldersCount++;
 410                 } else {
 411                     filesCount++;
 412                     if (file.isImage()){
 413                         imagesCount++;
 414                     }
 415                 }
 416             }
 417             // set footer text
 418             setFooterText(generateFooterText(filesCount, foldersCount));
 419
 420             // decide grid vs list view
 421             if (((double)imagesCount / (double)filesCount) >= THUMBNAIL_THRESHOLD) {
 422                 switchToGridView();
 423             } else {
 424                 switchToListView();
 425             }
 426         }
 427     }
 428
 429     private String generateFooterText(int filesCount, int foldersCount) {
 430         String output = "";
 431         if (filesCount > 0){
 432             if (filesCount == 1) {
 433                 output = output + filesCount + " " + getResources().getString(R.string.file_list_file);
 434             } else {
 435                 output = output + filesCount + " " + getResources().getString(R.string.file_list_files);
 436             }
 437         }
 438         if (foldersCount > 0 && filesCount > 0){
 439             output = output + ", ";
 440         }
 441         if (foldersCount == 1) {
 442             output = output + foldersCount + " " + getResources().getString(R.string.file_list_folder);
 443         } else if (foldersCount > 1) {
 444             output = output + foldersCount + " " + getResources().getString(R.string.file_list_folders);
 445         }
 446
 447         return output;
 448     }
 449
 450
 451     public void sortByName(boolean descending) {
 452         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 453     }
 454
 455     public void sortByDate(boolean descending) {
 456         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 457     }
 458
 459     public void sortBySize(boolean descending) {
 460         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 461     }
 462
 463 }