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.FileDataStorageManager;
  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
  47 import android.accounts.Account;
  48 import android.app.Activity;
  49 import android.os.Bundle;
  50 import android.os.Handler;
  51 import android.view.ContextMenu;
  52 import android.view.MenuInflater;
  53 import android.view.MenuItem;
  54 import android.view.View;
  55 import android.widget.AdapterView;
  56 import android.widget.AdapterView.AdapterContextMenuInfo;
  57
  58 /**
  59  * A Fragment that lists all files and folders in a given path.
  60  *
  61  * @author Bartek Przybylski
  62  *
  63  */
  64 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  65
  66     private static final String TAG = OCFileListFragment.class.getSimpleName();
  67
  68     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  69     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  70
  71     private OCFileListFragment.ContainerActivity mContainerActivity;
  72
  73     private OCFile mFile = null;
  74     private FileListListAdapter mAdapter;
  75
  76     private Handler mHandler;
  77     private OCFile mTargetFile;
  78
  79     /**
  80      * {@inheritDoc}
  81      */
  82     @Override
  83     public void onAttach(Activity activity) {
  84         super.onAttach(activity);
  85         Log_OC.e(TAG, "onAttach");
  86         try {
  87             mContainerActivity = (ContainerActivity) activity;
  88         } catch (ClassCastException e) {
  89             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  90         }
  91     }
  92
  93
  94     /**
  95      * {@inheritDoc}
  96      */
  97     @Override
  98     public void onActivityCreated(Bundle savedInstanceState) {
  99         super.onActivityCreated(savedInstanceState);
 100         Log_OC.e(TAG, "onActivityCreated() start");
 101         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 102         if (savedInstanceState != null) {
 103             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 104         }
 105         setListAdapter(mAdapter);
 106
 107         registerForContextMenu(getListView());
 108         getListView().setOnCreateContextMenuListener(this);
 109
 110         mHandler = new Handler();
 111
 112     }
 113
 114     /**
 115      * Saves the current listed folder.
 116      */
 117     @Override
 118     public void onSaveInstanceState (Bundle outState) {
 119         super.onSaveInstanceState(outState);
 120         outState.putParcelable(EXTRA_FILE, mFile);
 121     }
 122
 123
 124     /**
 125      * Call this, when the user presses the up button.
 126      *
 127      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 128      * it continues browsing up until finding an existing folders.
 129      *
 130      * return       Count of folder levels browsed up.
 131      */
 132     public int onBrowseUp() {
 133         OCFile parentDir = null;
 134         int moveCount = 0;
 135
 136         if(mFile != null){
 137             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 138
 139             String parentPath = null;
 140             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 141                 parentPath = new File(mFile.getRemotePath()).getParent();
 142                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 143                 parentDir = storageManager.getFileByPath(parentPath);
 144                 moveCount++;
 145             } else {
 146                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);    // never returns null; keep the path in root folder
 147             }
 148             while (parentDir == null) {
 149                 parentPath = new File(parentPath).getParent();
 150                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 151                 parentDir = storageManager.getFileByPath(parentPath);
 152                 moveCount++;
 153             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 154             mFile = parentDir;
 155         }
 156
 157         if (mFile != null) {
 158             listDirectory(mFile);
 159
 160             mContainerActivity.startSyncFolderOperation(mFile);
 161         }   // else - should never happen now
 162
 163         return moveCount;
 164     }
 165
 166     @Override
 167     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 168         OCFile file = (OCFile) mAdapter.getItem(position);
 169         if (file != null) {
 170             if (file.isFolder()) {
 171                 // update state and view of this fragment
 172                 listDirectory(file);
 173                 // then, notify parent activity to let it update its state and view, and other fragments
 174                 mContainerActivity.onBrowsedDownTo(file);
 175
 176             } else { /// Click on a file
 177                 if (PreviewImageFragment.canBePreviewed(file)) {
 178                     // preview image - it handles the download, if needed
 179                     mContainerActivity.startImagePreview(file);
 180
 181                 } else if (file.isDown()) {
 182                     if (PreviewMediaFragment.canBePreviewed(file)) {
 183                         // media preview
 184                         mContainerActivity.startMediaPreview(file, 0, true);
 185                     } else {
 186                         // open with
 187                         mContainerActivity.openFile(file);
 188                     }
 189
 190                 } else {
 191                     // automatic download, preview on finish
 192                     mContainerActivity.startDownloadForPreview(file);
 193                 }
 194
 195             }
 196
 197         } else {
 198             Log_OC.d(TAG, "Null object in ListAdapter!!");
 199         }
 200
 201     }
 202
 203     /**
 204      * {@inheritDoc}
 205      */
 206     @Override
 207     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 208         super.onCreateContextMenu(menu, v, menuInfo);
 209         MenuInflater inflater = getActivity().getMenuInflater();
 210         inflater.inflate(R.menu.file_actions_menu, menu);
 211         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 212         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 213         List<Integer> toHide = new ArrayList<Integer>();
 214         List<Integer> toDisable = new ArrayList<Integer>();
 215
 216         MenuItem item = null;
 217         if (targetFile.isFolder()) {
 218             // contextual menu for folders
 219             toHide.add(R.id.action_open_file_with);
 220             toHide.add(R.id.action_download_file);
 221             toHide.add(R.id.action_cancel_download);
 222             toHide.add(R.id.action_cancel_upload);
 223             toHide.add(R.id.action_sync_file);
 224             toHide.add(R.id.action_see_details);
 225             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 226                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 227                 toDisable.add(R.id.action_rename_file);
 228                 toDisable.add(R.id.action_remove_file);
 229
 230             }
 231
 232         } else {
 233             // contextual menu for regular files
 234
 235             // new design: 'download' and 'open with' won't be available anymore in context menu
 236             toHide.add(R.id.action_download_file);
 237             toHide.add(R.id.action_open_file_with);
 238
 239             if (targetFile.isDown()) {
 240                 toHide.add(R.id.action_cancel_download);
 241                 toHide.add(R.id.action_cancel_upload);
 242
 243             } else {
 244                 toHide.add(R.id.action_sync_file);
 245             }
 246             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 247                 toHide.add(R.id.action_cancel_upload);
 248                 toDisable.add(R.id.action_rename_file);
 249                 toDisable.add(R.id.action_remove_file);
 250
 251             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 252                 toHide.add(R.id.action_cancel_download);
 253                 toDisable.add(R.id.action_rename_file);
 254                 toDisable.add(R.id.action_remove_file);
 255
 256             } else {
 257                 toHide.add(R.id.action_cancel_download);
 258                 toHide.add(R.id.action_cancel_upload);
 259             }
 260         }
 261
 262         for (int i : toHide) {
 263             item = menu.findItem(i);
 264             if (item != null) {
 265                 item.setVisible(false);
 266                 item.setEnabled(false);
 267             }
 268         }
 269
 270         for (int i : toDisable) {
 271             item = menu.findItem(i);
 272             if (item != null) {
 273                 item.setEnabled(false);
 274             }
 275         }
 276     }
 277
 278
 279     /**
 280      * {@inhericDoc}
 281      */
 282     @Override
 283     public boolean onContextItemSelected (MenuItem item) {
 284         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 285         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 286         switch (item.getItemId()) {
 287             case R.id.action_rename_file: {
 288                 String fileName = mTargetFile.getFileName();
 289                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 290                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 291                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 292                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 293                 return true;
 294             }
 295             case R.id.action_remove_file: {
 296                 int messageStringId = R.string.confirmation_remove_alert;
 297                 int posBtnStringId = R.string.confirmation_remove_remote;
 298                 int neuBtnStringId = -1;
 299                 if (mTargetFile.isFolder()) {
 300                     messageStringId = R.string.confirmation_remove_folder_alert;
 301                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 302                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 303                 } else if (mTargetFile.isDown()) {
 304                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 305                     neuBtnStringId = R.string.confirmation_remove_local;
 306                 }
 307                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 308                         messageStringId,
 309                         new String[]{mTargetFile.getFileName()},
 310                         posBtnStringId,
 311                         neuBtnStringId,
 312                         R.string.common_cancel);
 313                 confDialog.setOnConfirmationListener(this);
 314                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 315                 return true;
 316             }
 317             case R.id.action_sync_file: {
 318                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 319                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 320                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 321                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 322                 return true;
 323             }
 324             case R.id.action_cancel_download: {
 325                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 326                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 327                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 328                     downloaderBinder.cancel(account, mTargetFile);
 329                     listDirectory();
 330                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 331                 }
 332                 return true;
 333             }
 334             case R.id.action_cancel_upload: {
 335                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 336                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 337                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 338                     uploaderBinder.cancel(account, mTargetFile);
 339                     listDirectory();
 340                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 341                 }
 342                 return true;
 343             }
 344             case R.id.action_see_details: {
 345                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 346                 return true;
 347             }
 348             default:
 349                 return super.onContextItemSelected(item);
 350         }
 351     }
 352
 353
 354     /**
 355      * Use this to query the {@link OCFile} that is currently
 356      * being displayed by this fragment
 357      * @return The currently viewed OCFile
 358      */
 359     public OCFile getCurrentFile(){
 360         return mFile;
 361     }
 362
 363     /**
 364      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 365      */
 366     public void listDirectory(){
 367         listDirectory(null);
 368     }
 369
 370     /**
 371      * Lists the given directory on the view. When the input parameter is null,
 372      * it will either refresh the last known directory. list the root
 373      * if there never was a directory.
 374      *
 375      * @param directory File to be listed
 376      */
 377     public void listDirectory(OCFile directory) {
 378         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 379         if (storageManager != null) {
 380
 381             // Check input parameters for null
 382             if(directory == null){
 383                 if(mFile != null){
 384                     directory = mFile;
 385                 } else {
 386                     directory = storageManager.getFileByPath("/");
 387                     if (directory == null) return; // no files, wait for sync
 388                 }
 389             }
 390
 391
 392             // If that's not a directory -> List its parent
 393             if(!directory.isFolder()){
 394                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 395                 directory = storageManager.getFileById(directory.getParentId());
 396             }
 397
 398             mAdapter.swapDirectory(directory, storageManager);
 399             if (mFile == null || !mFile.equals(directory)) {
 400                 mList.setSelectionFromTop(0, 0);
 401             }
 402             mFile = directory;
 403         }
 404     }
 405
 406
 407
 408     /**
 409      * Interface to implement by any Activity that includes some instance of FileListFragment
 410      *
 411      * @author David A. Velasco
 412      */
 413     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 414
 415         /**
 416          * Callback method invoked when a the user browsed into a different folder through the list of files
 417          *
 418          * @param file
 419          */
 420         public void onBrowsedDownTo(OCFile folder);
 421
 422         public void startDownloadForPreview(OCFile file);
 423
 424         public void startMediaPreview(OCFile file, int i, boolean b);
 425
 426         public void startImagePreview(OCFile file);
 427
 428         public void startSyncFolderOperation(OCFile folder);
 429
 430         /**
 431          * Getter for the current DataStorageManager in the container activity
 432          */
 433         public FileDataStorageManager getStorageManager();
 434
 435
 436         /**
 437          * Callback method invoked when a the 'transfer state' of a file changes.
 438          *
 439          * This happens when a download or upload is started or ended for a file.
 440          *
 441          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 442          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 443          * won't provide the needed response before the method where this is called finishes.
 444          *
 445          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 446          *
 447          * @param file          OCFile which state changed.
 448          * @param downloading   Flag signaling if the file is now downloading.
 449          * @param uploading     Flag signaling if the file is now uploading.
 450          */
 451         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 452
 453     }
 454
 455
 456     @Override
 457     public void onDismiss(EditNameDialog dialog) {
 458         if (dialog.getResult()) {
 459             String newFilename = dialog.getNewFilename();
 460             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 461             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 462                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 463                                                                 newFilename,
 464                                                                 mContainerActivity.getStorageManager());
 465             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 466             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 467         }
 468     }
 469
 470
 471     @Override
 472     public void onConfirmation(String callerTag) {
 473         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 474             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 475                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 476                                                                     true,
 477                                                                     mContainerActivity.getStorageManager());
 478                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 479
 480                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 481             }
 482         }
 483     }
 484
 485     @Override
 486     public void onNeutral(String callerTag) {
 487         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 488         listDirectory();
 489         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 490     }
 491
 492     @Override
 493     public void onCancel(String callerTag) {
 494         Log_OC.d(TAG, "REMOVAL CANCELED");
 495     }
 496
 497
 498 }