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     /**
 114      * Saves the current listed folder.
 115      */
 116     @Override
 117     public void onSaveInstanceState (Bundle outState) {
 118         super.onSaveInstanceState(outState);
 119         outState.putParcelable(EXTRA_FILE, mFile);
 120     }
 121
 122
 123     /**
 124      * Call this, when the user presses the up button
 125      */
 126     public void onBrowseUp() {
 127         OCFile parentDir = null;
 128
 129         if(mFile != null){
 130             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 131             if (mFile.getParentId() == 0) {
 132                 parentDir = storageManager.getFileById(1);
 133             }
 134             else {
 135                 parentDir = storageManager.getFileById(mFile.getParentId());
 136             }
 137
 138             mFile = parentDir;
 139         }
 140
 141         if (mFile != null) {
 142             listDirectory(mFile);
 143
 144             mContainerActivity.startSyncFolderOperation(mFile);
 145         }
 146
 147     }
 148
 149     @Override
 150     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 151         OCFile file = (OCFile) mAdapter.getItem(position);
 152         if (file != null) {
 153             if (file.isDirectory()) {
 154                 // update state and view of this fragment
 155                 listDirectory(file);
 156                 // then, notify parent activity to let it update its state and view, and other fragments
 157                 mContainerActivity.onBrowsedDownTo(file);
 158
 159             } else { /// Click on a file
 160                 if (PreviewImageFragment.canBePreviewed(file)) {
 161                     // preview image - it handles the download, if needed
 162                     mContainerActivity.startImagePreview(file);
 163
 164                 } else if (file.isDown()) {
 165                     if (PreviewMediaFragment.canBePreviewed(file)) {
 166                         // media preview
 167                         mContainerActivity.startMediaPreview(file, 0, true);
 168                     } else {
 169                         // open with
 170                         mContainerActivity.openFile(file);
 171                     }
 172
 173                 } else {
 174                     // automatic download, preview on finish
 175                     mContainerActivity.startDownloadForPreview(file);
 176                 }
 177
 178             }
 179
 180         } else {
 181             Log_OC.d(TAG, "Null object in ListAdapter!!");
 182         }
 183
 184     }
 185
 186     /**
 187      * {@inheritDoc}
 188      */
 189     @Override
 190     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 191         super.onCreateContextMenu(menu, v, menuInfo);
 192         MenuInflater inflater = getActivity().getMenuInflater();
 193         inflater.inflate(R.menu.file_actions_menu, menu);
 194         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 195         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 196         List<Integer> toHide = new ArrayList<Integer>();
 197         List<Integer> toDisable = new ArrayList<Integer>();
 198
 199         MenuItem item = null;
 200         if (targetFile.isDirectory()) {
 201             // contextual menu for folders
 202             toHide.add(R.id.action_open_file_with);
 203             toHide.add(R.id.action_download_file);
 204             toHide.add(R.id.action_cancel_download);
 205             toHide.add(R.id.action_cancel_upload);
 206             toHide.add(R.id.action_sync_file);
 207             toHide.add(R.id.action_see_details);
 208             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 209                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 210                 toDisable.add(R.id.action_rename_file);
 211                 toDisable.add(R.id.action_remove_file);
 212
 213             }
 214
 215         } else {
 216             // contextual menu for regular files
 217
 218             // new design: 'download' and 'open with' won't be available anymore in context menu
 219             toHide.add(R.id.action_download_file);
 220             toHide.add(R.id.action_open_file_with);
 221
 222             if (targetFile.isDown()) {
 223                 toHide.add(R.id.action_cancel_download);
 224                 toHide.add(R.id.action_cancel_upload);
 225
 226             } else {
 227                 toHide.add(R.id.action_sync_file);
 228             }
 229             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 230                 toHide.add(R.id.action_cancel_upload);
 231                 toDisable.add(R.id.action_rename_file);
 232                 toDisable.add(R.id.action_remove_file);
 233
 234             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 235                 toHide.add(R.id.action_cancel_download);
 236                 toDisable.add(R.id.action_rename_file);
 237                 toDisable.add(R.id.action_remove_file);
 238
 239             } else {
 240                 toHide.add(R.id.action_cancel_download);
 241                 toHide.add(R.id.action_cancel_upload);
 242             }
 243         }
 244
 245         for (int i : toHide) {
 246             item = menu.findItem(i);
 247             if (item != null) {
 248                 item.setVisible(false);
 249                 item.setEnabled(false);
 250             }
 251         }
 252
 253         for (int i : toDisable) {
 254             item = menu.findItem(i);
 255             if (item != null) {
 256                 item.setEnabled(false);
 257             }
 258         }
 259     }
 260
 261
 262     /**
 263      * {@inhericDoc}
 264      */
 265     @Override
 266     public boolean onContextItemSelected (MenuItem item) {
 267         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 268         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 269         switch (item.getItemId()) {
 270             case R.id.action_rename_file: {
 271                 String fileName = mTargetFile.getFileName();
 272                 int extensionStart = mTargetFile.isDirectory() ? -1 : fileName.lastIndexOf(".");
 273                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 274                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 275                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 276                 return true;
 277             }
 278             case R.id.action_remove_file: {
 279                 int messageStringId = R.string.confirmation_remove_alert;
 280                 int posBtnStringId = R.string.confirmation_remove_remote;
 281                 int neuBtnStringId = -1;
 282                 if (mTargetFile.isDirectory()) {
 283                     messageStringId = R.string.confirmation_remove_folder_alert;
 284                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 285                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 286                 } else if (mTargetFile.isDown()) {
 287                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 288                     neuBtnStringId = R.string.confirmation_remove_local;
 289                 }
 290                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 291                         messageStringId,
 292                         new String[]{mTargetFile.getFileName()},
 293                         posBtnStringId,
 294                         neuBtnStringId,
 295                         R.string.common_cancel);
 296                 confDialog.setOnConfirmationListener(this);
 297                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 298                 return true;
 299             }
 300             case R.id.action_sync_file: {
 301                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 302                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 303                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 304                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 305                 return true;
 306             }
 307             case R.id.action_cancel_download: {
 308                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 309                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 310                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 311                     downloaderBinder.cancel(account, mTargetFile);
 312                     listDirectory();
 313                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 314                 }
 315                 return true;
 316             }
 317             case R.id.action_cancel_upload: {
 318                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 319                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 320                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 321                     uploaderBinder.cancel(account, mTargetFile);
 322                     listDirectory();
 323                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 324                 }
 325                 return true;
 326             }
 327             case R.id.action_see_details: {
 328                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 329                 return true;
 330             }
 331             default:
 332                 return super.onContextItemSelected(item);
 333         }
 334     }
 335
 336
 337     /**
 338      * Use this to query the {@link OCFile} that is currently
 339      * being displayed by this fragment
 340      * @return The currently viewed OCFile
 341      */
 342     public OCFile getCurrentFile(){
 343         return mFile;
 344     }
 345
 346     /**
 347      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 348      */
 349     public void listDirectory(){
 350         listDirectory(null);
 351     }
 352
 353     /**
 354      * Lists the given directory on the view. When the input parameter is null,
 355      * it will either refresh the last known directory. list the root
 356      * if there never was a directory.
 357      *
 358      * @param directory File to be listed
 359      */
 360     public void listDirectory(OCFile directory) {
 361         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 362         if (storageManager != null) {
 363
 364             // Check input parameters for null
 365             if(directory == null){
 366                 if(mFile != null){
 367                     directory = mFile;
 368                 } else {
 369                     directory = storageManager.getFileByPath("/");
 370                     if (directory == null) return; // no files, wait for sync
 371                 }
 372             }
 373
 374
 375             // If that's not a directory -> List its parent
 376             if(!directory.isDirectory()){
 377                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 378                 directory = storageManager.getFileById(directory.getParentId());
 379             }
 380
 381             mAdapter.swapDirectory(directory, storageManager);
 382             if (mFile == null || !mFile.equals(directory)) {
 383                 mList.setSelectionFromTop(0, 0);
 384             }
 385             mFile = directory;
 386         }
 387     }
 388
 389
 390
 391     /**
 392      * Interface to implement by any Activity that includes some instance of FileListFragment
 393      *
 394      * @author David A. Velasco
 395      */
 396     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 397
 398         /**
 399          * Callback method invoked when a the user browsed into a different folder through the list of files
 400          *
 401          * @param file
 402          */
 403         public void onBrowsedDownTo(OCFile folder);
 404
 405         public void startDownloadForPreview(OCFile file);
 406
 407         public void startMediaPreview(OCFile file, int i, boolean b);
 408
 409         public void startImagePreview(OCFile file);
 410
 411         public void startSyncFolderOperation(OCFile folder);
 412
 413         /**
 414          * Getter for the current DataStorageManager in the container activity
 415          */
 416         public DataStorageManager getStorageManager();
 417
 418
 419         /**
 420          * Callback method invoked when a the 'transfer state' of a file changes.
 421          *
 422          * This happens when a download or upload is started or ended for a file.
 423          *
 424          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 425          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 426          * won't provide the needed response before the method where this is called finishes.
 427          *
 428          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 429          *
 430          * @param file          OCFile which state changed.
 431          * @param downloading   Flag signaling if the file is now downloading.
 432          * @param uploading     Flag signaling if the file is now uploading.
 433          */
 434         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 435
 436     }
 437
 438
 439     @Override
 440     public void onDismiss(EditNameDialog dialog) {
 441         if (dialog.getResult()) {
 442             String newFilename = dialog.getNewFilename();
 443             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 444             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 445                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 446                                                                 newFilename,
 447                                                                 mContainerActivity.getStorageManager());
 448             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 449             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 450         }
 451     }
 452
 453
 454     @Override
 455     public void onConfirmation(String callerTag) {
 456         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 457             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 458                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 459                                                                     true,
 460                                                                     mContainerActivity.getStorageManager());
 461                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 462
 463                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 464             }
 465         }
 466     }
 467
 468     @Override
 469     public void onNeutral(String callerTag) {
 470         File f = null;
 471         if (mTargetFile.isDirectory()) {
 472             // TODO run in a secondary thread?
 473             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 474
 475         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 476             f.delete();
 477             mTargetFile.setStoragePath(null);
 478             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 479         }
 480         listDirectory();
 481         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 482     }
 483
 484     @Override
 485     public void onCancel(String callerTag) {
 486         Log_OC.d(TAG, "REMOVAL CANCELED");
 487     }
 488
 489
 490 }