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.FileDataStorageManager;
  29 import com.owncloud.android.datamodel.OCFile;
  30 import com.owncloud.android.files.FileHandler;
  31 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  32 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  33 import com.owncloud.android.operations.OnRemoteOperationListener;
  34 import com.owncloud.android.operations.RemoteOperation;
  35 import com.owncloud.android.operations.RemoteOperationResult;
  36 import com.owncloud.android.operations.RemoveFileOperation;
  37 import com.owncloud.android.operations.RenameFileOperation;
  38 import com.owncloud.android.operations.SynchronizeFileOperation;
  39 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  40 import com.owncloud.android.ui.activity.FileDisplayActivity;
  41 import com.owncloud.android.ui.activity.TransferServiceGetter;
  42 import com.owncloud.android.ui.adapter.FileListListAdapter;
  43 import com.owncloud.android.ui.dialog.EditNameDialog;
  44 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  45 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  46 import com.owncloud.android.ui.preview.PreviewImageFragment;
  47 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  48
  49 import android.accounts.Account;
  50 import android.app.Activity;
  51 import android.os.Bundle;
  52 import android.os.Handler;
  53 import android.view.ContextMenu;
  54 import android.view.MenuInflater;
  55 import android.view.MenuItem;
  56 import android.view.View;
  57 import android.widget.AdapterView;
  58 import android.widget.AdapterView.AdapterContextMenuInfo;
  59
  60 /**
  61  * A Fragment that lists all files and folders in a given path.
  62  *
  63  * @author Bartek Przybylski
  64  *
  65  */
  66 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  67
  68     private static final String TAG = OCFileListFragment.class.getSimpleName();
  69
  70     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  71     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  72
  73     private OCFileListFragment.ContainerActivity mContainerActivity;
  74
  75     private OCFile mFile = null;
  76     private FileListListAdapter mAdapter;
  77
  78     private Handler mHandler;
  79     private OCFile mTargetFile;
  80
  81     /**
  82      * {@inheritDoc}
  83      */
  84     @Override
  85     public void onAttach(Activity activity) {
  86         super.onAttach(activity);
  87         Log_OC.e(TAG, "onAttach");
  88         try {
  89             mContainerActivity = (ContainerActivity) activity;
  90         } catch (ClassCastException e) {
  91             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  92         }
  93     }
  94
  95
  96     /**
  97      * {@inheritDoc}
  98      */
  99     @Override
 100     public void onActivityCreated(Bundle savedInstanceState) {
 101         super.onActivityCreated(savedInstanceState);
 102         Log_OC.e(TAG, "onActivityCreated() start");
 103         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 104         if (savedInstanceState != null) {
 105             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 106         }
 107         setListAdapter(mAdapter);
 108
 109         registerForContextMenu(getListView());
 110         getListView().setOnCreateContextMenuListener(this);
 111
 112         mHandler = new Handler();
 113
 114     }
 115
 116     /**
 117      * Saves the current listed folder.
 118      */
 119     @Override
 120     public void onSaveInstanceState (Bundle outState) {
 121         super.onSaveInstanceState(outState);
 122         outState.putParcelable(EXTRA_FILE, mFile);
 123     }
 124
 125
 126     /**
 127      * Call this, when the user presses the up button.
 128      *
 129      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 130      * it continues browsing up until finding an existing folders.
 131      *
 132      * return       Count of folder levels browsed up.
 133      */
 134     public int onBrowseUp() {
 135         OCFile parentDir = null;
 136         int moveCount = 0;
 137
 138         if(mFile != null){
 139             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 140
 141             String parentPath = null;
 142             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 143                 parentPath = new File(mFile.getRemotePath()).getParent();
 144                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 145                 parentDir = storageManager.getFileByPath(parentPath);
 146                 moveCount++;
 147             } else {
 148                 parentDir = storageManager.getFileByPath(OCFile.PATH_SEPARATOR);    // never returns null; keep the path in root folder
 149             }
 150             while (parentDir == null) {
 151                 parentPath = new File(parentPath).getParent();
 152                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 153                 parentDir = storageManager.getFileByPath(parentPath);
 154                 moveCount++;
 155             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 156             mFile = parentDir;
 157         }
 158
 159         if (mFile != null) {
 160             listDirectory(mFile);
 161
 162             mContainerActivity.startSyncFolderOperation(mFile);
 163         }   // else - should never happen now
 164
 165         return moveCount;
 166     }
 167
 168     @Override
 169     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 170         OCFile file = (OCFile) mAdapter.getItem(position);
 171         if (file != null) {
 172             if (file.isDirectory()) {
 173                 // update state and view of this fragment
 174                 listDirectory(file);
 175                 // then, notify parent activity to let it update its state and view, and other fragments
 176                 mContainerActivity.onBrowsedDownTo(file);
 177
 178             } else { /// Click on a file
 179                 if (PreviewImageFragment.canBePreviewed(file)) {
 180                     // preview image - it handles the download, if needed
 181                     mContainerActivity.startImagePreview(file);
 182
 183                 } else if (file.isDown()) {
 184                     if (PreviewMediaFragment.canBePreviewed(file)) {
 185                         // media preview
 186                         mContainerActivity.startMediaPreview(file, 0, true);
 187                     } else {
 188                         // open with
 189                         mContainerActivity.openFile(file);
 190                     }
 191
 192                 } else {
 193                     // automatic download, preview on finish
 194                     mContainerActivity.startDownloadForPreview(file);
 195                 }
 196
 197             }
 198
 199         } else {
 200             Log_OC.d(TAG, "Null object in ListAdapter!!");
 201         }
 202
 203     }
 204
 205     /**
 206      * {@inheritDoc}
 207      */
 208     @Override
 209     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 210         super.onCreateContextMenu(menu, v, menuInfo);
 211         MenuInflater inflater = getActivity().getMenuInflater();
 212         inflater.inflate(R.menu.file_actions_menu, menu);
 213         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 214         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 215         List<Integer> toHide = new ArrayList<Integer>();
 216         List<Integer> toDisable = new ArrayList<Integer>();
 217
 218         MenuItem item = null;
 219         if (targetFile.isDirectory()) {
 220             // contextual menu for folders
 221             toHide.add(R.id.action_open_file_with);
 222             toHide.add(R.id.action_download_file);
 223             toHide.add(R.id.action_cancel_download);
 224             toHide.add(R.id.action_cancel_upload);
 225             toHide.add(R.id.action_sync_file);
 226             toHide.add(R.id.action_see_details);
 227             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 228                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 229                 toDisable.add(R.id.action_rename_file);
 230                 toDisable.add(R.id.action_remove_file);
 231
 232             }
 233
 234         } else {
 235             // contextual menu for regular files
 236
 237             // new design: 'download' and 'open with' won't be available anymore in context menu
 238             toHide.add(R.id.action_download_file);
 239             toHide.add(R.id.action_open_file_with);
 240
 241             if (targetFile.isDown()) {
 242                 toHide.add(R.id.action_cancel_download);
 243                 toHide.add(R.id.action_cancel_upload);
 244
 245             } else {
 246                 toHide.add(R.id.action_sync_file);
 247             }
 248             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 249                 toHide.add(R.id.action_cancel_upload);
 250                 toDisable.add(R.id.action_rename_file);
 251                 toDisable.add(R.id.action_remove_file);
 252
 253             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 254                 toHide.add(R.id.action_cancel_download);
 255                 toDisable.add(R.id.action_rename_file);
 256                 toDisable.add(R.id.action_remove_file);
 257
 258             } else {
 259                 toHide.add(R.id.action_cancel_download);
 260                 toHide.add(R.id.action_cancel_upload);
 261             }
 262         }
 263
 264         for (int i : toHide) {
 265             item = menu.findItem(i);
 266             if (item != null) {
 267                 item.setVisible(false);
 268                 item.setEnabled(false);
 269             }
 270         }
 271
 272         for (int i : toDisable) {
 273             item = menu.findItem(i);
 274             if (item != null) {
 275                 item.setEnabled(false);
 276             }
 277         }
 278     }
 279
 280
 281     /**
 282      * {@inhericDoc}
 283      */
 284     @Override
 285     public boolean onContextItemSelected (MenuItem item) {
 286         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 287         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 288         switch (item.getItemId()) {
 289             case R.id.action_rename_file: {
 290                 String fileName = mTargetFile.getFileName();
 291                 int extensionStart = mTargetFile.isDirectory() ? -1 : fileName.lastIndexOf(".");
 292                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 293                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 294                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 295                 return true;
 296             }
 297             case R.id.action_remove_file: {
 298                 int messageStringId = R.string.confirmation_remove_alert;
 299                 int posBtnStringId = R.string.confirmation_remove_remote;
 300                 int neuBtnStringId = -1;
 301                 if (mTargetFile.isDirectory()) {
 302                     messageStringId = R.string.confirmation_remove_folder_alert;
 303                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 304                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 305                 } else if (mTargetFile.isDown()) {
 306                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 307                     neuBtnStringId = R.string.confirmation_remove_local;
 308                 }
 309                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 310                         messageStringId,
 311                         new String[]{mTargetFile.getFileName()},
 312                         posBtnStringId,
 313                         neuBtnStringId,
 314                         R.string.common_cancel);
 315                 confDialog.setOnConfirmationListener(this);
 316                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 317                 return true;
 318             }
 319             case R.id.action_sync_file: {
 320                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 321                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 322                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 323                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 324                 return true;
 325             }
 326             case R.id.action_cancel_download: {
 327                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 328                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 329                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 330                     downloaderBinder.cancel(account, mTargetFile);
 331                     listDirectory();
 332                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 333                 }
 334                 return true;
 335             }
 336             case R.id.action_cancel_upload: {
 337                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 338                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 339                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 340                     uploaderBinder.cancel(account, mTargetFile);
 341                     listDirectory();
 342                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 343                 }
 344                 return true;
 345             }
 346             case R.id.action_see_details: {
 347                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 348                 return true;
 349             }
 350             default:
 351                 return super.onContextItemSelected(item);
 352         }
 353     }
 354
 355
 356     /**
 357      * Use this to query the {@link OCFile} that is currently
 358      * being displayed by this fragment
 359      * @return The currently viewed OCFile
 360      */
 361     public OCFile getCurrentFile(){
 362         return mFile;
 363     }
 364
 365     /**
 366      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 367      */
 368     public void listDirectory(){
 369         listDirectory(null);
 370     }
 371
 372     /**
 373      * Lists the given directory on the view. When the input parameter is null,
 374      * it will either refresh the last known directory. list the root
 375      * if there never was a directory.
 376      *
 377      * @param directory File to be listed
 378      */
 379     public void listDirectory(OCFile directory) {
 380         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 381         if (storageManager != null) {
 382
 383             // Check input parameters for null
 384             if(directory == null){
 385                 if(mFile != null){
 386                     directory = mFile;
 387                 } else {
 388                     directory = storageManager.getFileByPath("/");
 389                     if (directory == null) return; // no files, wait for sync
 390                 }
 391             }
 392
 393
 394             // If that's not a directory -> List its parent
 395             if(!directory.isDirectory()){
 396                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 397                 directory = storageManager.getFileById(directory.getParentId());
 398             }
 399
 400             mAdapter.swapDirectory(directory, storageManager);
 401             if (mFile == null || !mFile.equals(directory)) {
 402                 mList.setSelectionFromTop(0, 0);
 403             }
 404             mFile = directory;
 405         }
 406     }
 407
 408
 409
 410     /**
 411      * Interface to implement by any Activity that includes some instance of FileListFragment
 412      *
 413      * @author David A. Velasco
 414      */
 415     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 416
 417         /**
 418          * Callback method invoked when a the user browsed into a different folder through the list of files
 419          *
 420          * @param file
 421          */
 422         public void onBrowsedDownTo(OCFile folder);
 423
 424         public void startDownloadForPreview(OCFile file);
 425
 426         public void startMediaPreview(OCFile file, int i, boolean b);
 427
 428         public void startImagePreview(OCFile file);
 429
 430         public void startSyncFolderOperation(OCFile folder);
 431
 432         /**
 433          * Getter for the current DataStorageManager in the container activity
 434          */
 435         public DataStorageManager getStorageManager();
 436
 437
 438         /**
 439          * Callback method invoked when a the 'transfer state' of a file changes.
 440          *
 441          * This happens when a download or upload is started or ended for a file.
 442          *
 443          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 444          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 445          * won't provide the needed response before the method where this is called finishes.
 446          *
 447          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 448          *
 449          * @param file          OCFile which state changed.
 450          * @param downloading   Flag signaling if the file is now downloading.
 451          * @param uploading     Flag signaling if the file is now uploading.
 452          */
 453         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 454
 455     }
 456
 457
 458     @Override
 459     public void onDismiss(EditNameDialog dialog) {
 460         if (dialog.getResult()) {
 461             String newFilename = dialog.getNewFilename();
 462             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 463             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 464                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 465                                                                 newFilename,
 466                                                                 mContainerActivity.getStorageManager());
 467             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 468             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 469         }
 470     }
 471
 472
 473     @Override
 474     public void onConfirmation(String callerTag) {
 475         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 476             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 477                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 478                                                                     true,
 479                                                                     mContainerActivity.getStorageManager());
 480                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 481
 482                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 483             }
 484         }
 485     }
 486
 487     @Override
 488     public void onNeutral(String callerTag) {
 489         File f = null;
 490         if (mTargetFile.isDirectory()) {
 491             // TODO run in a secondary thread?
 492             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 493
 494         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 495             f.delete();
 496             mTargetFile.setStoragePath(null);
 497             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 498         }
 499         listDirectory();
 500         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 501     }
 502
 503     @Override
 504     public void onCancel(String callerTag) {
 505         Log_OC.d(TAG, "REMOVAL CANCELED");
 506     }
 507
 508
 509 }