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.Log_OC;
  25 import com.owncloud.android.R;
  26 import com.owncloud.android.authentication.AccountUtils;
  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
  65     private static final String TAG = OCFileListFragment.class.getSimpleName();
  66
  67     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  68     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  69
  70     private OCFileListFragment.ContainerActivity mContainerActivity;
  71
  72     private OCFile mFile = null;
  73     private FileListListAdapter mAdapter;
  74
  75     private Handler mHandler;
  76     private OCFile mTargetFile;
  77
  78     /**
  79      * {@inheritDoc}
  80      */
  81     @Override
  82     public void onAttach(Activity activity) {
  83         super.onAttach(activity);
  84         Log_OC.e(TAG, "onAttach");
  85         try {
  86             mContainerActivity = (ContainerActivity) activity;
  87         } catch (ClassCastException e) {
  88             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  89         }
  90     }
  91
  92
  93     /**
  94      * {@inheritDoc}
  95      */
  96     @Override
  97     public void onActivityCreated(Bundle savedInstanceState) {
  98         super.onActivityCreated(savedInstanceState);
  99         Log_OC.e(TAG, "onActivityCreated() start");
 100         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 101         if (savedInstanceState != null) {
 102             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 103         }
 104         setListAdapter(mAdapter);
 105
 106         registerForContextMenu(getListView());
 107         getListView().setOnCreateContextMenuListener(this);
 108
 109         mHandler = new Handler();
 110     }
 111
 112     /**
 113      * Saves the current listed folder.
 114      */
 115     @Override
 116     public void onSaveInstanceState (Bundle outState) {
 117         super.onSaveInstanceState(outState);
 118         outState.putParcelable(EXTRA_FILE, mFile);
 119     }
 120
 121
 122     /**
 123      * Call this, when the user presses the up button
 124      */
 125     public void onBrowseUp() {
 126         OCFile parentDir = null;
 127
 128         if(mFile != null){
 129             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 130             parentDir = storageManager.getFileById(mFile.getParentId());
 131             mFile = parentDir;
 132         }
 133         listDirectory(parentDir);
 134     }
 135
 136     @Override
 137     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 138         OCFile file = (OCFile) mAdapter.getItem(position);
 139         if (file != null) {
 140             if (file.isDirectory()) {
 141                 // update state and view of this fragment
 142                 listDirectory(file);
 143                 // then, notify parent activity to let it update its state and view, and other fragments
 144                 mContainerActivity.onBrowsedDownTo(file);
 145
 146             } else { /// Click on a file
 147                 if (PreviewImageFragment.canBePreviewed(file)) {
 148                     // preview image - it handles the download, if needed
 149                     mContainerActivity.startImagePreview(file);
 150
 151                 } else if (file.isDown()) {
 152                     if (PreviewMediaFragment.canBePreviewed(file)) {
 153                         // media preview
 154                         mContainerActivity.startMediaPreview(file, 0, true);
 155                     } else {
 156                         // open with
 157                         mContainerActivity.openFile(file);
 158                     }
 159
 160                 } else {
 161                     // automatic download, preview on finish
 162                     mContainerActivity.startDownloadForPreview(file);
 163                 }
 164
 165             }
 166
 167         } else {
 168             Log_OC.d(TAG, "Null object in ListAdapter!!");
 169         }
 170
 171     }
 172
 173     /**
 174      * {@inheritDoc}
 175      */
 176     @Override
 177     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 178         super.onCreateContextMenu(menu, v, menuInfo);
 179         MenuInflater inflater = getActivity().getMenuInflater();
 180         inflater.inflate(R.menu.file_actions_menu, menu);
 181         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 182         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 183         List<Integer> toHide = new ArrayList<Integer>();
 184         List<Integer> toDisable = new ArrayList<Integer>();
 185
 186         MenuItem item = null;
 187         if (targetFile.isDirectory()) {
 188             // contextual menu for folders
 189             toHide.add(R.id.action_open_file_with);
 190             toHide.add(R.id.action_download_file);
 191             toHide.add(R.id.action_cancel_download);
 192             toHide.add(R.id.action_cancel_upload);
 193             toHide.add(R.id.action_sync_file);
 194             toHide.add(R.id.action_see_details);
 195             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 196                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 197                 toDisable.add(R.id.action_rename_file);
 198                 toDisable.add(R.id.action_remove_file);
 199
 200             }
 201
 202         } else {
 203             // contextual menu for regular files
 204
 205             // new design: 'download' and 'open with' won't be available anymore in context menu
 206             toHide.add(R.id.action_download_file);
 207             toHide.add(R.id.action_open_file_with);
 208
 209             if (targetFile.isDown()) {
 210                 toHide.add(R.id.action_cancel_download);
 211                 toHide.add(R.id.action_cancel_upload);
 212
 213             } else {
 214                 toHide.add(R.id.action_sync_file);
 215             }
 216             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 217                 toHide.add(R.id.action_cancel_upload);
 218                 toDisable.add(R.id.action_rename_file);
 219                 toDisable.add(R.id.action_remove_file);
 220
 221             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 222                 toHide.add(R.id.action_cancel_download);
 223                 toDisable.add(R.id.action_rename_file);
 224                 toDisable.add(R.id.action_remove_file);
 225
 226             } else {
 227                 toHide.add(R.id.action_cancel_download);
 228                 toHide.add(R.id.action_cancel_upload);
 229             }
 230         }
 231
 232         for (int i : toHide) {
 233             item = menu.findItem(i);
 234             if (item != null) {
 235                 item.setVisible(false);
 236                 item.setEnabled(false);
 237             }
 238         }
 239
 240         for (int i : toDisable) {
 241             item = menu.findItem(i);
 242             if (item != null) {
 243                 item.setEnabled(false);
 244             }
 245         }
 246     }
 247
 248
 249     /**
 250      * {@inhericDoc}
 251      */
 252     @Override
 253     public boolean onContextItemSelected (MenuItem item) {
 254         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 255         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 256         switch (item.getItemId()) {
 257             case R.id.action_rename_file: {
 258                 String fileName = mTargetFile.getFileName();
 259                 int extensionStart = mTargetFile.isDirectory() ? -1 : fileName.lastIndexOf(".");
 260                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 261                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 262                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 263                 return true;
 264             }
 265             case R.id.action_remove_file: {
 266                 int messageStringId = R.string.confirmation_remove_alert;
 267                 int posBtnStringId = R.string.confirmation_remove_remote;
 268                 int neuBtnStringId = -1;
 269                 if (mTargetFile.isDirectory()) {
 270                     messageStringId = R.string.confirmation_remove_folder_alert;
 271                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 272                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 273                 } else if (mTargetFile.isDown()) {
 274                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 275                     neuBtnStringId = R.string.confirmation_remove_local;
 276                 }
 277                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 278                         messageStringId,
 279                         new String[]{mTargetFile.getFileName()},
 280                         posBtnStringId,
 281                         neuBtnStringId,
 282                         R.string.common_cancel);
 283                 confDialog.setOnConfirmationListener(this);
 284                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 285                 return true;
 286             }
 287             case R.id.action_sync_file: {
 288                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 289                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 290                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 291                 getSherlockActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 292                 return true;
 293             }
 294             case R.id.action_cancel_download: {
 295                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 296                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 297                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 298                     downloaderBinder.cancel(account, mTargetFile);
 299                     listDirectory();
 300                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 301                 }
 302                 return true;
 303             }
 304             case R.id.action_cancel_upload: {
 305                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 306                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 307                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 308                     uploaderBinder.cancel(account, mTargetFile);
 309                     listDirectory();
 310                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 311                 }
 312                 return true;
 313             }
 314             case R.id.action_see_details: {
 315                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 316                 return true;
 317             }
 318             default:
 319                 return super.onContextItemSelected(item);
 320         }
 321     }
 322
 323
 324     /**
 325      * Use this to query the {@link OCFile} that is currently
 326      * being displayed by this fragment
 327      * @return The currently viewed OCFile
 328      */
 329     public OCFile getCurrentFile(){
 330         return mFile;
 331     }
 332
 333     /**
 334      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 335      */
 336     public void listDirectory(){
 337         listDirectory(null);
 338     }
 339
 340     /**
 341      * Lists the given directory on the view. When the input parameter is null,
 342      * it will either refresh the last known directory. list the root
 343      * if there never was a directory.
 344      *
 345      * @param directory File to be listed
 346      */
 347     public void listDirectory(OCFile directory) {
 348         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 349         if (storageManager != null) {
 350
 351             // Check input parameters for null
 352             if(directory == null){
 353                 if(mFile != null){
 354                     directory = mFile;
 355                 } else {
 356                     directory = storageManager.getFileByPath("/");
 357                     if (directory == null) return; // no files, wait for sync
 358                 }
 359             }
 360
 361
 362             // If that's not a directory -> List its parent
 363             if(!directory.isDirectory()){
 364                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 365                 directory = storageManager.getFileById(directory.getParentId());
 366             }
 367
 368             mAdapter.swapDirectory(directory, storageManager);
 369             if (mFile == null || !mFile.equals(directory)) {
 370                 mList.setSelectionFromTop(0, 0);
 371             }
 372             mFile = directory;
 373         }
 374     }
 375
 376
 377
 378     /**
 379      * Interface to implement by any Activity that includes some instance of FileListFragment
 380      *
 381      * @author David A. Velasco
 382      */
 383     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 384
 385         /**
 386          * Callback method invoked when a the user browsed into a different folder through the list of files
 387          *
 388          * @param file
 389          */
 390         public void onBrowsedDownTo(OCFile folder);
 391
 392         public void startDownloadForPreview(OCFile file);
 393
 394         public void startMediaPreview(OCFile file, int i, boolean b);
 395
 396         public void startImagePreview(OCFile file);
 397
 398         /**
 399          * Getter for the current DataStorageManager in the container activity
 400          */
 401         public DataStorageManager getStorageManager();
 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 }