src/com/owncloud/android/ui/fragment/OCFileListFragment.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2014 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18 package com.owncloud.android.ui.fragment;
  19
  20 import java.io.File;
  21
  22 import android.app.Activity;
  23 import android.content.Intent;
  24 import android.os.Bundle;
  25 import android.support.v4.widget.SwipeRefreshLayout;
  26 import android.view.ContextMenu;
  27 import android.view.MenuInflater;
  28 import android.view.MenuItem;
  29 import android.view.View;
  30 import android.widget.AdapterView;
  31 import android.widget.AdapterView.AdapterContextMenuInfo;
  32
  33 import com.owncloud.android.R;
  34 import com.owncloud.android.datamodel.FileDataStorageManager;
  35 import com.owncloud.android.datamodel.OCFile;
  36 import com.owncloud.android.files.FileMenuFilter;
  37 import com.owncloud.android.lib.common.utils.Log_OC;
  38 import com.owncloud.android.ui.activity.FileDisplayActivity;
  39 import com.owncloud.android.ui.activity.FolderPickerActivity;
  40 import com.owncloud.android.ui.activity.OnEnforceableRefreshListener;
  41 import com.owncloud.android.ui.adapter.FileListListAdapter;
  42 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  43 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  44 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  45 import com.owncloud.android.ui.preview.PreviewImageFragment;
  46 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  47 import com.owncloud.android.utils.FileStorageUtils;
  48
  49 /**
  50  * A Fragment that lists all files and folders in a given path.
  51  *
  52  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  53  *
  54  * @author Bartek Przybylski
  55  * @author masensio
  56  * @author David A. Velasco
  57  */
  58 public class OCFileListFragment extends ExtendedListFragment {
  59
  60     private static final String TAG = OCFileListFragment.class.getSimpleName();
  61
  62     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  63             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  64
  65     public final static String ARG_JUST_FOLDERS = MY_PACKAGE + ".JUST_FOLDERS";
  66     public final static String ARG_ALLOW_CONTEXTUAL_ACTIONS = MY_PACKAGE + ".ALLOW_CONTEXTUAL";
  67
  68     private static final String KEY_FILE = MY_PACKAGE + ".extra.FILE";
  69
  70     private final static Double THUMBNAIL_THRESHOLD = 0.5;
  71
  72     private FileFragment.ContainerActivity mContainerActivity;
  73
  74     private OCFile mFile = null;
  75     private FileListListAdapter mAdapter;
  76     private boolean mJustFolders;
  77
  78     private OCFile mTargetFile;
  79
  80
  81     /**
  82      * {@inheritDoc}
  83      */
  84     @Override
  85     public void onAttach(Activity activity) {
  86         super.onAttach(activity);
  87         Log_OC.e(TAG, "onAttach");
  88         try {
  89             mContainerActivity = (FileFragment.ContainerActivity) activity;
  90
  91         } catch (ClassCastException e) {
  92             throw new ClassCastException(activity.toString() + " must implement " +
  93                     FileFragment.ContainerActivity.class.getSimpleName());
  94         }
  95         try {
  96             setOnRefreshListener((OnEnforceableRefreshListener) activity);
  97
  98         } catch (ClassCastException e) {
  99             throw new ClassCastException(activity.toString() + " must implement " +
 100                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
 101         }
 102     }
 103
 104
 105     @Override
 106     public void onDetach() {
 107         setOnRefreshListener(null);
 108         mContainerActivity = null;
 109         super.onDetach();
 110     }
 111
 112     /**
 113      * {@inheritDoc}
 114      */
 115     @Override
 116     public void onActivityCreated(Bundle savedInstanceState) {
 117         super.onActivityCreated(savedInstanceState);
 118         Log_OC.e(TAG, "onActivityCreated() start");
 119
 120         if (savedInstanceState != null) {
 121             mFile = savedInstanceState.getParcelable(KEY_FILE);
 122         }
 123
 124         if (mJustFolders) {
 125             setFooterEnabled(false);
 126         } else {
 127             setFooterEnabled(true);
 128         }
 129
 130         Bundle args = getArguments();
 131         mJustFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 132         mAdapter = new FileListListAdapter(
 133                 mJustFolders,
 134                 getSherlockActivity(),
 135                 mContainerActivity
 136                 );
 137         setListAdapter(mAdapter);
 138
 139         registerForContextMenu();
 140   }
 141
 142     /**
 143      * Saves the current listed folder.
 144      */
 145     @Override
 146     public void onSaveInstanceState (Bundle outState) {
 147         super.onSaveInstanceState(outState);
 148         outState.putParcelable(KEY_FILE, mFile);
 149     }
 150
 151     /**
 152      * Call this, when the user presses the up button.
 153      *
 154      * Tries to move up the current folder one level. If the parent folder was removed from the
 155      * database, it continues browsing up until finding an existing folders.
 156      *
 157      * return       Count of folder levels browsed up.
 158      */
 159     public int onBrowseUp() {
 160         OCFile parentDir = null;
 161         int moveCount = 0;
 162
 163         if(mFile != null){
 164             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 165
 166             String parentPath = null;
 167             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 168                 parentPath = new File(mFile.getRemotePath()).getParent();
 169                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 170                         parentPath + OCFile.PATH_SEPARATOR;
 171                 parentDir = storageManager.getFileByPath(parentPath);
 172                 moveCount++;
 173             } else {
 174                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 175             }
 176             while (parentDir == null) {
 177                 parentPath = new File(parentPath).getParent();
 178                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 179                         parentPath + OCFile.PATH_SEPARATOR;
 180                 parentDir = storageManager.getFileByPath(parentPath);
 181                 moveCount++;
 182             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 183             mFile = parentDir;
 184
 185             listDirectory(mFile);
 186
 187             onRefresh(false);
 188
 189             // restore index and top position
 190             restoreIndexAndTopPosition();
 191
 192         }   // else - should never happen now
 193
 194         return moveCount;
 195     }
 196
 197     @Override
 198     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 199         OCFile file = (OCFile) mAdapter.getItem(position);
 200         if (file != null) {
 201             if (file.isFolder()) {
 202                 // update state and view of this fragment
 203                 listDirectory(file);
 204                 // then, notify parent activity to let it update its state and view
 205                 mContainerActivity.onBrowsedDownTo(file);
 206                 // save index and top position
 207                 saveIndexAndTopPosition(position);
 208
 209             } else { /// Click on a file
 210                 if (PreviewImageFragment.canBePreviewed(file)) {
 211                     // preview image - it handles the download, if needed
 212                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 213
 214                 } else if (file.isDown()) {
 215                     if (PreviewMediaFragment.canBePreviewed(file)) {
 216                         // media preview
 217                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 218                     } else {
 219                         mContainerActivity.getFileOperationsHelper().openFile(file);
 220                     }
 221
 222                 } else {
 223                     // automatic download, preview on finish
 224                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 225                 }
 226
 227             }
 228
 229         } else {
 230             Log_OC.d(TAG, "Null object in ListAdapter!!");
 231         }
 232
 233     }
 234
 235     /**
 236      * {@inheritDoc}
 237      */
 238     @Override
 239     public void onCreateContextMenu (
 240             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 241         super.onCreateContextMenu(menu, v, menuInfo);
 242         Bundle args = getArguments();
 243         boolean allowContextualActions =
 244                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 245         if (allowContextualActions) {
 246             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 247             inflater.inflate(R.menu.file_actions_menu, menu);
 248             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 249             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 250
 251             if (mContainerActivity.getStorageManager() != null) {
 252                 FileMenuFilter mf = new FileMenuFilter(
 253                     targetFile,
 254                     mContainerActivity.getStorageManager().getAccount(),
 255                     mContainerActivity,
 256                     getSherlockActivity()
 257                 );
 258                 mf.filter(menu);
 259             }
 260
 261             /// TODO break this direct dependency on FileDisplayActivity... if possible
 262             MenuItem item = menu.findItem(R.id.action_open_file_with);
 263             FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 264             if (frag != null && frag instanceof FileDetailFragment &&
 265                     frag.getFile().getFileId() == targetFile.getFileId()) {
 266                 item = menu.findItem(R.id.action_see_details);
 267                 if (item != null) {
 268                     item.setVisible(false);
 269                     item.setEnabled(false);
 270                 }
 271             }
 272         }
 273     }
 274
 275
 276     /**
 277      * {@inhericDoc}
 278      */
 279     @Override
 280     public boolean onContextItemSelected (MenuItem item) {
 281         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 282         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 283         switch (item.getItemId()) {
 284             case R.id.action_share_file: {
 285                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 286                 return true;
 287             }
 288             case R.id.action_open_file_with: {
 289                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 290                 return true;
 291             }
 292             case R.id.action_unshare_file: {
 293                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 294                 return true;
 295             }
 296             case R.id.action_rename_file: {
 297                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 298                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 299                 return true;
 300             }
 301             case R.id.action_remove_file: {
 302                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 303                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 304                 return true;
 305             }
 306             case R.id.action_download_file:
 307             case R.id.action_sync_file: {
 308                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 309                 return true;
 310             }
 311             case R.id.action_cancel_download:
 312             case R.id.action_cancel_upload: {
 313                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 314                 return true;
 315             }
 316             case R.id.action_see_details: {
 317                 mContainerActivity.showDetails(mTargetFile);
 318                 return true;
 319             }
 320             case R.id.action_send_file: {
 321                 // Obtain the file
 322                 if (!mTargetFile.isDown()) {  // Download the file
 323                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 324                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 325
 326                 } else {
 327                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 328                 }
 329                 return true;
 330             }
 331             case R.id.action_move: {
 332                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 333
 334                 // Pass mTargetFile that contains info of selected file/folder
 335                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 336                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 337                 return true;
 338             }
 339             default:
 340                 return super.onContextItemSelected(item);
 341         }
 342     }
 343
 344
 345     /**
 346      * Use this to query the {@link OCFile} that is currently
 347      * being displayed by this fragment
 348      * @return The currently viewed OCFile
 349      */
 350     public OCFile getCurrentFile(){
 351         return mFile;
 352     }
 353
 354     /**
 355      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 356      */
 357     public void listDirectory(){
 358         listDirectory(null);
 359     }
 360
 361     /**
 362      * Lists the given directory on the view. When the input parameter is null,
 363      * it will either refresh the last known directory. list the root
 364      * if there never was a directory.
 365      *
 366      * @param directory File to be listed
 367      */
 368     public void listDirectory(OCFile directory) {
 369         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 370         if (storageManager != null) {
 371
 372             // Check input parameters for null
 373             if(directory == null){
 374                 if(mFile != null){
 375                     directory = mFile;
 376                 } else {
 377                     directory = storageManager.getFileByPath("/");
 378                     if (directory == null) return; // no files, wait for sync
 379                 }
 380             }
 381
 382
 383             // If that's not a directory -> List its parent
 384             if(!directory.isFolder()){
 385                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 386                 directory = storageManager.getFileById(directory.getParentId());
 387             }
 388
 389             mAdapter.swapDirectory(directory, storageManager);
 390             if (mFile == null || !mFile.equals(directory)) {
 391                 mCurrentListView.setSelection(0);
 392             }
 393             mFile = directory;
 394
 395             updateLayout();
 396
 397         }
 398     }
 399
 400     private void updateLayout() {
 401         if (!mJustFolders) {
 402             int filesCount = 0, foldersCount = 0, imagesCount = 0;
 403             int count = mAdapter.getCount();
 404             OCFile file;
 405             for (int i=0; i < count ; i++) {
 406                 file = (OCFile) mAdapter.getItem(i);
 407                 if (file.isFolder()) {
 408                     foldersCount++;
 409                 } else {
 410                     filesCount++;
 411                     if (file.isImage()){
 412                         imagesCount++;
 413                     }
 414                 }
 415             }
 416             // set footer text
 417             setFooterText(generateFooterText(filesCount, foldersCount));
 418
 419             // decide grid vs list view
 420             if (((double)imagesCount / (double)filesCount) >= THUMBNAIL_THRESHOLD) {
 421                 switchToGridView();
 422             } else {
 423                 switchToListView();
 424             }
 425         }
 426     }
 427
 428     private String generateFooterText(int filesCount, int foldersCount) {
 429         String output = "";
 430         if (filesCount > 0){
 431             if (filesCount == 1) {
 432                 output = output + filesCount + " " + getResources().getString(R.string.file_list_file);
 433             } else {
 434                 output = output + filesCount + " " + getResources().getString(R.string.file_list_files);
 435             }
 436         }
 437         if (foldersCount > 0 && filesCount > 0){
 438             output = output + ", ";
 439         }
 440         if (foldersCount == 1) {
 441             output = output + foldersCount + " " + getResources().getString(R.string.file_list_folder);
 442         } else if (foldersCount > 1) {
 443             output = output + foldersCount + " " + getResources().getString(R.string.file_list_folders);
 444         }
 445
 446         return output;
 447     }
 448
 449
 450     public void sortByName(boolean descending) {
 451         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 452     }
 453
 454     public void sortByDate(boolean descending) {
 455         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 456     }
 457
 458     public void sortBySize(boolean descending) {
 459         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 460     }
 461
 462 }