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.R;
  25 import com.owncloud.android.authentication.AccountUtils;
  26 import com.owncloud.android.datamodel.FileDataStorageManager;
  27 import com.owncloud.android.datamodel.OCFile;
  28 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  29 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  30 import com.owncloud.android.lib.operations.common.OnRemoteOperationListener;
  31 import com.owncloud.android.lib.operations.common.RemoteOperation;
  32 import com.owncloud.android.operations.RemoveFileOperation;
  33 import com.owncloud.android.operations.RenameFileOperation;
  34 import com.owncloud.android.operations.SynchronizeFileOperation;
  35 import com.owncloud.android.ui.activity.FileDisplayActivity;
  36 import com.owncloud.android.ui.activity.TransferServiceGetter;
  37 import com.owncloud.android.ui.adapter.FileListListAdapter;
  38 import com.owncloud.android.ui.dialog.EditNameDialog;
  39 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  40 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  41 import com.owncloud.android.ui.preview.PreviewImageFragment;
  42 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  43 import com.owncloud.android.utils.Log_OC;
  44
  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      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 127      * it continues browsing up until finding an existing folders.
 128      *
 129      * return       Count of folder levels browsed up.
 130      */
 131     public int onBrowseUp() {
 132         OCFile parentDir = null;
 133         int moveCount = 0;
 134
 135         if(mFile != null){
 136             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 137
 138             String parentPath = null;
 139             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 140                 parentPath = new File(mFile.getRemotePath()).getParent();
 141                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 142                 parentDir = storageManager.getFileByPath(parentPath);
 143                 moveCount++;
 144             } else {
 145                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);    // never returns null; keep the path in root folder
 146             }
 147             while (parentDir == null) {
 148                 parentPath = new File(parentPath).getParent();
 149                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 150                 parentDir = storageManager.getFileByPath(parentPath);
 151                 moveCount++;
 152             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 153             mFile = parentDir;
 154         }
 155
 156         if (mFile != null) {
 157             listDirectory(mFile);
 158
 159             mContainerActivity.startSyncFolderOperation(mFile);
 160         }   // else - should never happen now
 161
 162         return moveCount;
 163     }
 164
 165     @Override
 166     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 167         OCFile file = (OCFile) mAdapter.getItem(position);
 168         if (file != null) {
 169             if (file.isFolder()) {
 170                 // update state and view of this fragment
 171                 listDirectory(file);
 172                 // then, notify parent activity to let it update its state and view, and other fragments
 173                 mContainerActivity.onBrowsedDownTo(file);
 174
 175             } else { /// Click on a file
 176                 if (PreviewImageFragment.canBePreviewed(file)) {
 177                     // preview image - it handles the download, if needed
 178                     mContainerActivity.startImagePreview(file);
 179
 180                 } else if (file.isDown()) {
 181                     if (PreviewMediaFragment.canBePreviewed(file)) {
 182                         // media preview
 183                         mContainerActivity.startMediaPreview(file, 0, true);
 184                     } else {
 185                         FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 186                         activity.getFileOperationsHelper().openFile(file, activity);
 187                     }
 188
 189                 } else {
 190                     // automatic download, preview on finish
 191                     mContainerActivity.startDownloadForPreview(file);
 192                 }
 193
 194             }
 195
 196         } else {
 197             Log_OC.d(TAG, "Null object in ListAdapter!!");
 198         }
 199
 200     }
 201
 202     /**
 203      * {@inheritDoc}
 204      */
 205     @Override
 206     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 207         super.onCreateContextMenu(menu, v, menuInfo);
 208         MenuInflater inflater = getActivity().getMenuInflater();
 209         inflater.inflate(R.menu.file_actions_menu, menu);
 210         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 211         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 212         List<Integer> toHide = new ArrayList<Integer>();
 213         List<Integer> toDisable = new ArrayList<Integer>();
 214
 215         MenuItem item = null;
 216         if (targetFile.isFolder()) {
 217             // contextual menu for folders
 218             toHide.add(R.id.action_open_file_with);
 219             toHide.add(R.id.action_download_file);
 220             toHide.add(R.id.action_cancel_download);
 221             toHide.add(R.id.action_cancel_upload);
 222             toHide.add(R.id.action_sync_file);
 223             toHide.add(R.id.action_see_details);
 224             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 225                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 226                 toDisable.add(R.id.action_rename_file);
 227                 toDisable.add(R.id.action_remove_file);
 228
 229             }
 230
 231         } else {
 232             // contextual menu for regular files
 233
 234             // new design: 'download' and 'open with' won't be available anymore in context menu
 235             toHide.add(R.id.action_download_file);
 236             toHide.add(R.id.action_open_file_with);
 237
 238             if (targetFile.isDown()) {
 239                 toHide.add(R.id.action_cancel_download);
 240                 toHide.add(R.id.action_cancel_upload);
 241
 242             } else {
 243                 toHide.add(R.id.action_sync_file);
 244             }
 245             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 246                 toHide.add(R.id.action_cancel_upload);
 247                 toDisable.add(R.id.action_rename_file);
 248                 toDisable.add(R.id.action_remove_file);
 249
 250             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 251                 toHide.add(R.id.action_cancel_download);
 252                 toDisable.add(R.id.action_rename_file);
 253                 toDisable.add(R.id.action_remove_file);
 254
 255             } else {
 256                 toHide.add(R.id.action_cancel_download);
 257                 toHide.add(R.id.action_cancel_upload);
 258             }
 259         }
 260
 261         for (int i : toHide) {
 262             item = menu.findItem(i);
 263             if (item != null) {
 264                 item.setVisible(false);
 265                 item.setEnabled(false);
 266             }
 267         }
 268
 269         for (int i : toDisable) {
 270             item = menu.findItem(i);
 271             if (item != null) {
 272                 item.setEnabled(false);
 273             }
 274         }
 275     }
 276
 277
 278     /**
 279      * {@inhericDoc}
 280      */
 281     @Override
 282     public boolean onContextItemSelected (MenuItem item) {
 283         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 284         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 285         switch (item.getItemId()) {
 286             case R.id.action_share_file: {
 287                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 288                 activity.getFileOperationsHelper().shareFileWithLink(mTargetFile, activity);
 289                 return true;
 290             }
 291             case R.id.action_rename_file: {
 292                 String fileName = mTargetFile.getFileName();
 293                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 294                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 295                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 296                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 297                 return true;
 298             }
 299             case R.id.action_remove_file: {
 300                 int messageStringId = R.string.confirmation_remove_alert;
 301                 int posBtnStringId = R.string.confirmation_remove_remote;
 302                 int neuBtnStringId = -1;
 303                 if (mTargetFile.isFolder()) {
 304                     messageStringId = R.string.confirmation_remove_folder_alert;
 305                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 306                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 307                 } else if (mTargetFile.isDown()) {
 308                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 309                     neuBtnStringId = R.string.confirmation_remove_local;
 310                 }
 311                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 312                         messageStringId,
 313                         new String[]{mTargetFile.getFileName()},
 314                         posBtnStringId,
 315                         neuBtnStringId,
 316                         R.string.common_cancel);
 317                 confDialog.setOnConfirmationListener(this);
 318                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 319                 return true;
 320             }
 321             case R.id.action_sync_file: {
 322                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 323                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 324                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 325                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 326                 return true;
 327             }
 328             case R.id.action_cancel_download: {
 329                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 330                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 331                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 332                     downloaderBinder.cancel(account, mTargetFile);
 333                     listDirectory();
 334                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 335                 }
 336                 return true;
 337             }
 338             case R.id.action_cancel_upload: {
 339                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 340                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 341                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 342                     uploaderBinder.cancel(account, mTargetFile);
 343                     listDirectory();
 344                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 345                 }
 346                 return true;
 347             }
 348             case R.id.action_see_details: {
 349                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 350                 return true;
 351             }
 352             default:
 353                 return super.onContextItemSelected(item);
 354         }
 355     }
 356
 357
 358     /**
 359      * Use this to query the {@link OCFile} that is currently
 360      * being displayed by this fragment
 361      * @return The currently viewed OCFile
 362      */
 363     public OCFile getCurrentFile(){
 364         return mFile;
 365     }
 366
 367     /**
 368      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 369      */
 370     public void listDirectory(){
 371         listDirectory(null);
 372     }
 373
 374     /**
 375      * Lists the given directory on the view. When the input parameter is null,
 376      * it will either refresh the last known directory. list the root
 377      * if there never was a directory.
 378      *
 379      * @param directory File to be listed
 380      */
 381     public void listDirectory(OCFile directory) {
 382         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 383         if (storageManager != null) {
 384
 385             // Check input parameters for null
 386             if(directory == null){
 387                 if(mFile != null){
 388                     directory = mFile;
 389                 } else {
 390                     directory = storageManager.getFileByPath("/");
 391                     if (directory == null) return; // no files, wait for sync
 392                 }
 393             }
 394
 395
 396             // If that's not a directory -> List its parent
 397             if(!directory.isFolder()){
 398                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 399                 directory = storageManager.getFileById(directory.getParentId());
 400             }
 401
 402             mAdapter.swapDirectory(directory, storageManager);
 403             if (mFile == null || !mFile.equals(directory)) {
 404                 mList.setSelectionFromTop(0, 0);
 405             }
 406             mFile = directory;
 407         }
 408     }
 409
 410
 411
 412     /**
 413      * Interface to implement by any Activity that includes some instance of FileListFragment
 414      *
 415      * @author David A. Velasco
 416      */
 417     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 418
 419         /**
 420          * Callback method invoked when a the user browsed into a different folder through the list of files
 421          *
 422          * @param file
 423          */
 424         public void onBrowsedDownTo(OCFile folder);
 425
 426         public void startDownloadForPreview(OCFile file);
 427
 428         public void startMediaPreview(OCFile file, int i, boolean b);
 429
 430         public void startImagePreview(OCFile file);
 431
 432         public void startSyncFolderOperation(OCFile folder);
 433
 434         /**
 435          * Getter for the current DataStorageManager in the container activity
 436          */
 437         public FileDataStorageManager getStorageManager();
 438
 439
 440         /**
 441          * Callback method invoked when a the 'transfer state' of a file changes.
 442          *
 443          * This happens when a download or upload is started or ended for a file.
 444          *
 445          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 446          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 447          * won't provide the needed response before the method where this is called finishes.
 448          *
 449          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 450          *
 451          * @param file          OCFile which state changed.
 452          * @param downloading   Flag signaling if the file is now downloading.
 453          * @param uploading     Flag signaling if the file is now uploading.
 454          */
 455         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 456
 457     }
 458
 459
 460     @Override
 461     public void onDismiss(EditNameDialog dialog) {
 462         if (dialog.getResult()) {
 463             String newFilename = dialog.getNewFilename();
 464             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 465             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 466                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 467                                                                 newFilename,
 468                                                                 mContainerActivity.getStorageManager());
 469             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 470             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 471         }
 472     }
 473
 474
 475     @Override
 476     public void onConfirmation(String callerTag) {
 477         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 478             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 479                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 480                                                                     true,
 481                                                                     mContainerActivity.getStorageManager());
 482                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 483
 484                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 485             }
 486         }
 487     }
 488
 489     @Override
 490     public void onNeutral(String callerTag) {
 491         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 492         listDirectory();
 493         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 494     }
 495
 496     @Override
 497     public void onCancel(String callerTag) {
 498         Log_OC.d(TAG, "REMOVAL CANCELED");
 499     }
 500
 501
 502 }