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.oc_framework.operations.OnRemoteOperationListener;
  33 import com.owncloud.android.oc_framework.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      * 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                         // open with
 186                         mContainerActivity.openFile(file);
 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_rename_file: {
 287                 String fileName = mTargetFile.getFileName();
 288                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 289                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 290                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 291                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 292                 return true;
 293             }
 294             case R.id.action_remove_file: {
 295                 int messageStringId = R.string.confirmation_remove_alert;
 296                 int posBtnStringId = R.string.confirmation_remove_remote;
 297                 int neuBtnStringId = -1;
 298                 if (mTargetFile.isFolder()) {
 299                     messageStringId = R.string.confirmation_remove_folder_alert;
 300                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 301                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 302                 } else if (mTargetFile.isDown()) {
 303                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 304                     neuBtnStringId = R.string.confirmation_remove_local;
 305                 }
 306                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 307                         messageStringId,
 308                         new String[]{mTargetFile.getFileName()},
 309                         posBtnStringId,
 310                         neuBtnStringId,
 311                         R.string.common_cancel);
 312                 confDialog.setOnConfirmationListener(this);
 313                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 314                 return true;
 315             }
 316             case R.id.action_sync_file: {
 317                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 318                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 319                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 320                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 321                 return true;
 322             }
 323             case R.id.action_cancel_download: {
 324                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 325                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 326                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 327                     downloaderBinder.cancel(account, mTargetFile);
 328                     listDirectory();
 329                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 330                 }
 331                 return true;
 332             }
 333             case R.id.action_cancel_upload: {
 334                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 335                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 336                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 337                     uploaderBinder.cancel(account, mTargetFile);
 338                     listDirectory();
 339                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 340                 }
 341                 return true;
 342             }
 343             case R.id.action_see_details: {
 344                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 345                 return true;
 346             }
 347             default:
 348                 return super.onContextItemSelected(item);
 349         }
 350     }
 351
 352
 353     /**
 354      * Use this to query the {@link OCFile} that is currently
 355      * being displayed by this fragment
 356      * @return The currently viewed OCFile
 357      */
 358     public OCFile getCurrentFile(){
 359         return mFile;
 360     }
 361
 362     /**
 363      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 364      */
 365     public void listDirectory(){
 366         listDirectory(null);
 367     }
 368
 369     /**
 370      * Lists the given directory on the view. When the input parameter is null,
 371      * it will either refresh the last known directory. list the root
 372      * if there never was a directory.
 373      *
 374      * @param directory File to be listed
 375      */
 376     public void listDirectory(OCFile directory) {
 377         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 378         if (storageManager != null) {
 379
 380             // Check input parameters for null
 381             if(directory == null){
 382                 if(mFile != null){
 383                     directory = mFile;
 384                 } else {
 385                     directory = storageManager.getFileByPath("/");
 386                     if (directory == null) return; // no files, wait for sync
 387                 }
 388             }
 389
 390
 391             // If that's not a directory -> List its parent
 392             if(!directory.isFolder()){
 393                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 394                 directory = storageManager.getFileById(directory.getParentId());
 395             }
 396
 397             mAdapter.swapDirectory(directory, storageManager);
 398             if (mFile == null || !mFile.equals(directory)) {
 399                 mList.setSelectionFromTop(0, 0);
 400             }
 401             mFile = directory;
 402         }
 403     }
 404
 405
 406
 407     /**
 408      * Interface to implement by any Activity that includes some instance of FileListFragment
 409      *
 410      * @author David A. Velasco
 411      */
 412     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 413
 414         /**
 415          * Callback method invoked when a the user browsed into a different folder through the list of files
 416          *
 417          * @param file
 418          */
 419         public void onBrowsedDownTo(OCFile folder);
 420
 421         public void startDownloadForPreview(OCFile file);
 422
 423         public void startMediaPreview(OCFile file, int i, boolean b);
 424
 425         public void startImagePreview(OCFile file);
 426
 427         public void startSyncFolderOperation(OCFile folder);
 428
 429         /**
 430          * Getter for the current DataStorageManager in the container activity
 431          */
 432         public FileDataStorageManager getStorageManager();
 433
 434
 435         /**
 436          * Callback method invoked when a the 'transfer state' of a file changes.
 437          *
 438          * This happens when a download or upload is started or ended for a file.
 439          *
 440          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 441          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 442          * won't provide the needed response before the method where this is called finishes.
 443          *
 444          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 445          *
 446          * @param file          OCFile which state changed.
 447          * @param downloading   Flag signaling if the file is now downloading.
 448          * @param uploading     Flag signaling if the file is now uploading.
 449          */
 450         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 451
 452     }
 453
 454
 455     @Override
 456     public void onDismiss(EditNameDialog dialog) {
 457         if (dialog.getResult()) {
 458             String newFilename = dialog.getNewFilename();
 459             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 460             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 461                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 462                                                                 newFilename,
 463                                                                 mContainerActivity.getStorageManager());
 464             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 465             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 466         }
 467     }
 468
 469
 470     @Override
 471     public void onConfirmation(String callerTag) {
 472         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 473             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 474                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 475                                                                     true,
 476                                                                     mContainerActivity.getStorageManager());
 477                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 478
 479                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 480             }
 481         }
 482     }
 483
 484     @Override
 485     public void onNeutral(String callerTag) {
 486         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 487         listDirectory();
 488         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 489     }
 490
 491     @Override
 492     public void onCancel(String callerTag) {
 493         Log_OC.d(TAG, "REMOVAL CANCELED");
 494     }
 495
 496
 497 }