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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 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 import java.util.ArrayList;
  22 import java.util.List;
  23
  24 import com.owncloud.android.AccountUtils;
  25 import com.owncloud.android.Log_OC;
  26 import com.owncloud.android.R;
  27 import com.owncloud.android.datamodel.DataStorageManager;
  28 import com.owncloud.android.datamodel.OCFile;
  29 import com.owncloud.android.files.FileHandler;
  30 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  31 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  32 import com.owncloud.android.operations.OnRemoteOperationListener;
  33 import com.owncloud.android.operations.RemoteOperation;
  34 import com.owncloud.android.operations.RemoveFileOperation;
  35 import com.owncloud.android.operations.RenameFileOperation;
  36 import com.owncloud.android.operations.SynchronizeFileOperation;
  37 import com.owncloud.android.ui.activity.FileDisplayActivity;
  38 import com.owncloud.android.ui.activity.TransferServiceGetter;
  39 import com.owncloud.android.ui.adapter.FileListListAdapter;
  40 import com.owncloud.android.ui.dialog.EditNameDialog;
  41 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  42 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  43 import com.owncloud.android.ui.preview.PreviewImageFragment;
  44 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  45
  46 import android.accounts.Account;
  47 import android.app.Activity;
  48 import android.os.Bundle;
  49 import android.os.Handler;
  50 import android.view.ContextMenu;
  51 import android.view.MenuInflater;
  52 import android.view.MenuItem;
  53 import android.view.View;
  54 import android.widget.AdapterView;
  55 import android.widget.AdapterView.AdapterContextMenuInfo;
  56
  57 /**
  58  * A Fragment that lists all files and folders in a given path.
  59  *
  60  * @author Bartek Przybylski
  61  *
  62  */
  63 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  64     private static final String TAG = OCFileListFragment.class.getSimpleName();
  65     private static final String SAVED_LIST_POSITION = "LIST_POSITION";
  66
  67     private OCFileListFragment.ContainerActivity mContainerActivity;
  68
  69     private OCFile mFile = null;
  70     private FileListListAdapter mAdapter;
  71
  72     private Handler mHandler;
  73     private OCFile mTargetFile;
  74
  75     /**
  76      * {@inheritDoc}
  77      */
  78     @Override
  79     public void onAttach(Activity activity) {
  80         super.onAttach(activity);
  81         Log_OC.e(TAG, "onAttach");
  82         try {
  83             mContainerActivity = (ContainerActivity) activity;
  84         } catch (ClassCastException e) {
  85             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  86         }
  87     }
  88
  89
  90     /**
  91      * {@inheritDoc}
  92      */
  93     @Override
  94     public void onActivityCreated(Bundle savedInstanceState) {
  95         super.onActivityCreated(savedInstanceState);
  96         Log_OC.e(TAG, "onActivityCreated() start");
  97         mAdapter = new FileListListAdapter(mContainerActivity.getInitialDirectory(), mContainerActivity.getStorageManager(), getActivity(), mContainerActivity);
  98         setListAdapter(mAdapter);
  99
 100         registerForContextMenu(getListView());
 101         getListView().setOnCreateContextMenuListener(this);
 102
 103         mHandler = new Handler();
 104     }
 105
 106
 107     /**
 108      * Call this, when the user presses the up button
 109      */
 110     public void onBrowseUp() {
 111         OCFile parentDir = null;
 112
 113         if(mFile != null){
 114             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 115             parentDir = storageManager.getFileById(mFile.getParentId());
 116             mFile = parentDir;
 117         }
 118         listDirectory(parentDir);
 119     }
 120
 121     @Override
 122     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 123         OCFile file = (OCFile) mAdapter.getItem(position);
 124         if (file != null) {
 125             if (file.isDirectory()) {
 126                 // update state and view of this fragment
 127                 mFile = file;
 128                 listDirectory(file);
 129                 // then, notify parent activity to let it update its state and view, and other fragments
 130                 mContainerActivity.onBrowsedDownTo(file);
 131
 132             } else { /// Click on a file
 133                 if (PreviewImageFragment.canBePreviewed(file)) {
 134                     // preview image - it handles the download, if needed
 135                     mContainerActivity.startImagePreview(file);
 136
 137                 } else if (file.isDown()) {
 138                     if (PreviewMediaFragment.canBePreviewed(file)) {
 139                         // media preview
 140                         mContainerActivity.startMediaPreview(file, 0, true);
 141                     } else {
 142                         // open with
 143                         mContainerActivity.openFile(file);
 144                     }
 145
 146                 } else {
 147                     // automatic download, preview on finish
 148                     mContainerActivity.startDownloadForPreview(file);
 149                 }
 150
 151             }
 152
 153         } else {
 154             Log_OC.d(TAG, "Null object in ListAdapter!!");
 155         }
 156
 157     }
 158
 159     /**
 160      * {@inheritDoc}
 161      */
 162     @Override
 163     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 164         super.onCreateContextMenu(menu, v, menuInfo);
 165         MenuInflater inflater = getActivity().getMenuInflater();
 166         inflater.inflate(R.menu.file_actions_menu, menu);
 167         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 168         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 169         List<Integer> toHide = new ArrayList<Integer>();
 170         List<Integer> toDisable = new ArrayList<Integer>();
 171
 172         MenuItem item = null;
 173         if (targetFile.isDirectory()) {
 174             // contextual menu for folders
 175             toHide.add(R.id.action_open_file_with);
 176             toHide.add(R.id.action_download_file);
 177             toHide.add(R.id.action_cancel_download);
 178             toHide.add(R.id.action_cancel_upload);
 179             toHide.add(R.id.action_sync_file);
 180             toHide.add(R.id.action_see_details);
 181             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 182                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 183                 toDisable.add(R.id.action_rename_file);
 184                 toDisable.add(R.id.action_remove_file);
 185
 186             }
 187
 188         } else {
 189             // contextual menu for regular files
 190             if (targetFile.isDown()) {
 191                 toHide.add(R.id.action_cancel_download);
 192                 toHide.add(R.id.action_cancel_upload);
 193                 toHide.add(R.id.action_download_file);
 194
 195             } else {
 196                 toHide.add(R.id.action_open_file_with);
 197                 toHide.add(R.id.action_sync_file);
 198             }
 199             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 200                 toHide.add(R.id.action_download_file);
 201                 toHide.add(R.id.action_cancel_upload);
 202                 toDisable.add(R.id.action_open_file_with);
 203                 toDisable.add(R.id.action_rename_file);
 204                 toDisable.add(R.id.action_remove_file);
 205
 206             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 207                 toHide.add(R.id.action_download_file);
 208                 toHide.add(R.id.action_cancel_download);
 209                 toDisable.add(R.id.action_open_file_with);
 210                 toDisable.add(R.id.action_rename_file);
 211                 toDisable.add(R.id.action_remove_file);
 212
 213             } else {
 214                 toHide.add(R.id.action_cancel_download);
 215                 toHide.add(R.id.action_cancel_upload);
 216             }
 217         }
 218
 219         for (int i : toHide) {
 220             item = menu.findItem(i);
 221             if (item != null) {
 222                 item.setVisible(false);
 223                 item.setEnabled(false);
 224             }
 225         }
 226
 227         for (int i : toDisable) {
 228             item = menu.findItem(i);
 229             if (item != null) {
 230                 item.setEnabled(false);
 231             }
 232         }
 233     }
 234
 235
 236     /**
 237      * {@inhericDoc}
 238      */
 239     @Override
 240     public boolean onContextItemSelected (MenuItem item) {
 241         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 242         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 243         switch (item.getItemId()) {
 244             case R.id.action_rename_file: {
 245                 String fileName = mTargetFile.getFileName();
 246                 int extensionStart = mTargetFile.isDirectory() ? -1 : fileName.lastIndexOf(".");
 247                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 248                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 249                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 250                 return true;
 251             }
 252             case R.id.action_remove_file: {
 253                 int messageStringId = R.string.confirmation_remove_alert;
 254                 int posBtnStringId = R.string.confirmation_remove_remote;
 255                 int neuBtnStringId = -1;
 256                 if (mTargetFile.isDirectory()) {
 257                     messageStringId = R.string.confirmation_remove_folder_alert;
 258                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 259                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 260                 } else if (mTargetFile.isDown()) {
 261                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 262                     neuBtnStringId = R.string.confirmation_remove_local;
 263                 }
 264                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 265                         messageStringId,
 266                         new String[]{mTargetFile.getFileName()},
 267                         posBtnStringId,
 268                         neuBtnStringId,
 269                         R.string.common_cancel);
 270                 confDialog.setOnConfirmationListener(this);
 271                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 272                 return true;
 273             }
 274             case R.id.action_open_file_with: {
 275                 mContainerActivity.openFile(mTargetFile);
 276                 return true;
 277             }
 278             case R.id.action_download_file:
 279             case R.id.action_sync_file: {
 280                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 281                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 282                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 283                 getSherlockActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 284                 return true;
 285             }
 286             case R.id.action_cancel_download: {
 287                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 288                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 289                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 290                     downloaderBinder.cancel(account, mTargetFile);
 291                     listDirectory();
 292                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 293                 }
 294                 return true;
 295             }
 296             case R.id.action_cancel_upload: {
 297                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 298                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 299                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 300                     uploaderBinder.cancel(account, mTargetFile);
 301                     listDirectory();
 302                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 303                 }
 304                 return true;
 305             }
 306             case R.id.action_see_details: {
 307                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 308                 return true;
 309             }
 310             default:
 311                 return super.onContextItemSelected(item);
 312         }
 313     }
 314
 315
 316     /**
 317      * Use this to query the {@link OCFile} that is currently
 318      * being displayed by this fragment
 319      * @return The currently viewed OCFile
 320      */
 321     public OCFile getCurrentFile(){
 322         return mFile;
 323     }
 324
 325     /**
 326      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 327      */
 328     public void listDirectory(){
 329         listDirectory(null);
 330     }
 331
 332     /**
 333      * Lists the given directory on the view. When the input parameter is null,
 334      * it will either refresh the last known directory. list the root
 335      * if there never was a directory.
 336      *
 337      * @param directory File to be listed
 338      */
 339     public void listDirectory(OCFile directory) {
 340         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 341         if (storageManager != null) {
 342
 343             // Check input parameters for null
 344             if(directory == null){
 345                 if(mFile != null){
 346                     directory = mFile;
 347                 } else {
 348                     directory = storageManager.getFileByPath("/");
 349                     if (directory == null) return; // no files, wait for sync
 350                 }
 351             }
 352
 353
 354             // If that's not a directory -> List its parent
 355             if(!directory.isDirectory()){
 356                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 357                 directory = storageManager.getFileById(directory.getParentId());
 358             }
 359
 360             mAdapter.swapDirectory(directory, storageManager);
 361             if (mFile == null || !mFile.equals(directory)) {
 362                 mList.setSelectionFromTop(0, 0);
 363             }
 364             mFile = directory;
 365         }
 366     }
 367
 368
 369
 370     /**
 371      * Interface to implement by any Activity that includes some instance of FileListFragment
 372      *
 373      * @author David A. Velasco
 374      */
 375     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 376
 377         /**
 378          * Callback method invoked when a the user browsed into a different folder through the list of files
 379          *
 380          * @param file
 381          */
 382         public void onBrowsedDownTo(OCFile folder);
 383
 384         public void startDownloadForPreview(OCFile file);
 385
 386         public void startMediaPreview(OCFile file, int i, boolean b);
 387
 388         public void startImagePreview(OCFile file);
 389
 390         /**
 391          * Getter for the current DataStorageManager in the container activity
 392          */
 393         public DataStorageManager getStorageManager();
 394
 395
 396         /**
 397          * Callback method invoked when the parent activity is fully created to get the directory to list firstly.
 398          *
 399          * @return  Directory to list firstly. Can be NULL.
 400          */
 401         public OCFile getInitialDirectory();
 402
 403
 404         /**
 405          * Callback method invoked when a the 'transfer state' of a file changes.
 406          *
 407          * This happens when a download or upload is started or ended for a file.
 408          *
 409          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 410          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 411          * won't provide the needed response before the method where this is called finishes.
 412          *
 413          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 414          *
 415          * @param file          OCFile which state changed.
 416          * @param downloading   Flag signaling if the file is now downloading.
 417          * @param uploading     Flag signaling if the file is now uploading.
 418          */
 419         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 420
 421     }
 422
 423
 424     @Override
 425     public void onDismiss(EditNameDialog dialog) {
 426         if (dialog.getResult()) {
 427             String newFilename = dialog.getNewFilename();
 428             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 429             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 430                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 431                                                                 newFilename,
 432                                                                 mContainerActivity.getStorageManager());
 433             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 434             getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 435         }
 436     }
 437
 438
 439     @Override
 440     public void onConfirmation(String callerTag) {
 441         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 442             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 443                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 444                                                                     true,
 445                                                                     mContainerActivity.getStorageManager());
 446                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 447
 448                 getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 449             }
 450         }
 451     }
 452
 453     @Override
 454     public void onNeutral(String callerTag) {
 455         File f = null;
 456         if (mTargetFile.isDirectory()) {
 457             // TODO run in a secondary thread?
 458             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 459
 460         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 461             f.delete();
 462             mTargetFile.setStoragePath(null);
 463             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 464         }
 465         listDirectory();
 466         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 467     }
 468
 469     @Override
 470     public void onCancel(String callerTag) {
 471         Log_OC.d(TAG, "REMOVAL CANCELED");
 472     }
 473
 474
 475 }