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.actionbarsherlock.view.Menu;
  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.lib.operations.common.OnRemoteOperationListener;
  33 import com.owncloud.android.lib.operations.common.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 import com.owncloud.android.utils.Log_OC;
  46
  47
  48 import android.accounts.Account;
  49 import android.app.Activity;
  50 import android.os.Bundle;
  51 import android.os.Handler;
  52 import android.view.ContextMenu;
  53 import android.view.MenuInflater;
  54 import android.view.MenuItem;
  55 import android.view.View;
  56 import android.widget.AdapterView;
  57 import android.widget.AdapterView.AdapterContextMenuInfo;
  58
  59 /**
  60  * A Fragment that lists all files and folders in a given path.
  61  *
  62  * @author Bartek Przybylski
  63  *
  64  */
  65 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  66
  67     private static final String TAG = OCFileListFragment.class.getSimpleName();
  68
  69     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  70     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  71
  72     private OCFileListFragment.ContainerActivity mContainerActivity;
  73
  74     private OCFile mFile = null;
  75     private FileListListAdapter mAdapter;
  76
  77     private Handler mHandler;
  78     private OCFile mTargetFile;
  79
  80     /**
  81      * {@inheritDoc}
  82      */
  83     @Override
  84     public void onAttach(Activity activity) {
  85         super.onAttach(activity);
  86         Log_OC.e(TAG, "onAttach");
  87         try {
  88             mContainerActivity = (ContainerActivity) activity;
  89         } catch (ClassCastException e) {
  90             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  91         }
  92     }
  93
  94
  95     /**
  96      * {@inheritDoc}
  97      */
  98     @Override
  99     public void onActivityCreated(Bundle savedInstanceState) {
 100         super.onActivityCreated(savedInstanceState);
 101         Log_OC.e(TAG, "onActivityCreated() start");
 102         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 103         if (savedInstanceState != null) {
 104             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 105         }
 106         setListAdapter(mAdapter);
 107
 108         registerForContextMenu(getListView());
 109         getListView().setOnCreateContextMenuListener(this);
 110
 111         mHandler = new Handler();
 112
 113     }
 114
 115     /**
 116      * Saves the current listed folder.
 117      */
 118     @Override
 119     public void onSaveInstanceState (Bundle outState) {
 120         super.onSaveInstanceState(outState);
 121         outState.putParcelable(EXTRA_FILE, mFile);
 122     }
 123
 124
 125     /**
 126      * Call this, when the user presses the up button.
 127      *
 128      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 129      * it continues browsing up until finding an existing folders.
 130      *
 131      * return       Count of folder levels browsed up.
 132      */
 133     public int onBrowseUp() {
 134         OCFile parentDir = null;
 135         int moveCount = 0;
 136
 137         if(mFile != null){
 138             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 139
 140             String parentPath = null;
 141             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 142                 parentPath = new File(mFile.getRemotePath()).getParent();
 143                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 144                 parentDir = storageManager.getFileByPath(parentPath);
 145                 moveCount++;
 146             } else {
 147                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);    // never returns null; keep the path in root folder
 148             }
 149             while (parentDir == null) {
 150                 parentPath = new File(parentPath).getParent();
 151                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 152                 parentDir = storageManager.getFileByPath(parentPath);
 153                 moveCount++;
 154             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 155             mFile = parentDir;
 156         }
 157
 158         if (mFile != null) {
 159             listDirectory(mFile);
 160
 161             mContainerActivity.startSyncFolderOperation(mFile);
 162         }   // else - should never happen now
 163
 164         return moveCount;
 165     }
 166
 167     @Override
 168     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 169         OCFile file = (OCFile) mAdapter.getItem(position);
 170         if (file != null) {
 171             if (file.isFolder()) {
 172                 // update state and view of this fragment
 173                 listDirectory(file);
 174                 // then, notify parent activity to let it update its state and view, and other fragments
 175                 mContainerActivity.onBrowsedDownTo(file);
 176
 177             } else { /// Click on a file
 178                 if (PreviewImageFragment.canBePreviewed(file)) {
 179                     // preview image - it handles the download, if needed
 180                     mContainerActivity.startImagePreview(file);
 181
 182                 } else if (file.isDown()) {
 183                     if (PreviewMediaFragment.canBePreviewed(file)) {
 184                         // media preview
 185                         mContainerActivity.startMediaPreview(file, 0, true);
 186                     } else {
 187                         // open with
 188                         mContainerActivity.openFile(file);
 189                     }
 190
 191                 } else {
 192                     // automatic download, preview on finish
 193                     mContainerActivity.startDownloadForPreview(file);
 194                 }
 195
 196             }
 197
 198         } else {
 199             Log_OC.d(TAG, "Null object in ListAdapter!!");
 200         }
 201
 202     }
 203
 204     /**
 205      * {@inheritDoc}
 206      */
 207     @Override
 208     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 209         super.onCreateContextMenu(menu, v, menuInfo);
 210         MenuInflater inflater = getActivity().getMenuInflater();
 211         inflater.inflate(R.menu.file_actions_menu, menu);
 212         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 213         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 214         List<Integer> toHide = new ArrayList<Integer>();
 215         List<Integer> toDisable = new ArrayList<Integer>();
 216
 217         MenuItem item = null;
 218         if (targetFile.isFolder()) {
 219             // contextual menu for folders
 220             toHide.add(R.id.action_open_file_with);
 221             toHide.add(R.id.action_download_file);
 222             toHide.add(R.id.action_cancel_download);
 223             toHide.add(R.id.action_cancel_upload);
 224             toHide.add(R.id.action_sync_file);
 225             toHide.add(R.id.action_see_details);
 226             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 227                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 228                 toDisable.add(R.id.action_rename_file);
 229                 toDisable.add(R.id.action_remove_file);
 230
 231             }
 232
 233         } else {
 234             // contextual menu for regular files
 235
 236             // new design: 'download' and 'open with' won't be available anymore in context menu
 237             toHide.add(R.id.action_download_file);
 238             toHide.add(R.id.action_open_file_with);
 239
 240             if (targetFile.isDown()) {
 241                 toHide.add(R.id.action_cancel_download);
 242                 toHide.add(R.id.action_cancel_upload);
 243
 244             } else {
 245                 toHide.add(R.id.action_sync_file);
 246             }
 247             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 248                 toHide.add(R.id.action_cancel_upload);
 249                 toDisable.add(R.id.action_rename_file);
 250                 toDisable.add(R.id.action_remove_file);
 251
 252             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 253                 toHide.add(R.id.action_cancel_download);
 254                 toDisable.add(R.id.action_rename_file);
 255                 toDisable.add(R.id.action_remove_file);
 256
 257             } else {
 258                 toHide.add(R.id.action_cancel_download);
 259                 toHide.add(R.id.action_cancel_upload);
 260             }
 261         }
 262
 263         for (int i : toHide) {
 264             item = menu.findItem(i);
 265             if (item != null) {
 266                 item.setVisible(false);
 267                 item.setEnabled(false);
 268             }
 269         }
 270
 271         for (int i : toDisable) {
 272             item = menu.findItem(i);
 273             if (item != null) {
 274                 item.setEnabled(false);
 275             }
 276         }
 277     }
 278
 279
 280     /**
 281      * {@inhericDoc}
 282      */
 283     @Override
 284     public boolean onContextItemSelected (MenuItem item) {
 285         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 286         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 287         switch (item.getItemId()) {
 288             case R.id.action_rename_file: {
 289                 String fileName = mTargetFile.getFileName();
 290                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 291                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 292                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 293                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 294                 return true;
 295             }
 296             case R.id.action_remove_file: {
 297                 int messageStringId = R.string.confirmation_remove_alert;
 298                 int posBtnStringId = R.string.confirmation_remove_remote;
 299                 int neuBtnStringId = -1;
 300                 if (mTargetFile.isFolder()) {
 301                     messageStringId = R.string.confirmation_remove_folder_alert;
 302                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 303                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 304                 } else if (mTargetFile.isDown()) {
 305                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 306                     neuBtnStringId = R.string.confirmation_remove_local;
 307                 }
 308                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 309                         messageStringId,
 310                         new String[]{mTargetFile.getFileName()},
 311                         posBtnStringId,
 312                         neuBtnStringId,
 313                         R.string.common_cancel);
 314                 confDialog.setOnConfirmationListener(this);
 315                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 316                 return true;
 317             }
 318             case R.id.action_sync_file: {
 319                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 320                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 321                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 322                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 323                 return true;
 324             }
 325             case R.id.action_cancel_download: {
 326                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 327                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 328                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 329                     downloaderBinder.cancel(account, mTargetFile);
 330                     listDirectory();
 331                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 332                 }
 333                 return true;
 334             }
 335             case R.id.action_cancel_upload: {
 336                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 337                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 338                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 339                     uploaderBinder.cancel(account, mTargetFile);
 340                     listDirectory();
 341                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 342                 }
 343                 return true;
 344             }
 345             case R.id.action_see_details: {
 346                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 347                 return true;
 348             }
 349             default:
 350                 return super.onContextItemSelected(item);
 351         }
 352     }
 353
 354
 355     /**
 356      * {@inheritDoc}
 357      */
 358     @Override
 359     public void onPrepareOptionsMenu(Menu menu) {
 360         super.onPrepareOptionsMenu(menu);
 361
 362         List<Integer> toHide = new ArrayList<Integer>();
 363         MenuItem item = null;
 364         for (int i : toHide) {
 365             item = (MenuItem) menu.findItem(i);
 366             if (item != null) {
 367                 item.setVisible(false);
 368                 item.setEnabled(false);
 369             }
 370         }
 371     }
 372
 373
 374     /**
 375      * Use this to query the {@link OCFile} that is currently
 376      * being displayed by this fragment
 377      * @return The currently viewed OCFile
 378      */
 379     public OCFile getCurrentFile(){
 380         return mFile;
 381     }
 382
 383     /**
 384      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 385      */
 386     public void listDirectory(){
 387         listDirectory(null);
 388     }
 389
 390     /**
 391      * Lists the given directory on the view. When the input parameter is null,
 392      * it will either refresh the last known directory. list the root
 393      * if there never was a directory.
 394      *
 395      * @param directory File to be listed
 396      */
 397     public void listDirectory(OCFile directory) {
 398         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 399         if (storageManager != null) {
 400
 401             // Check input parameters for null
 402             if(directory == null){
 403                 if(mFile != null){
 404                     directory = mFile;
 405                 } else {
 406                     directory = storageManager.getFileByPath("/");
 407                     if (directory == null) return; // no files, wait for sync
 408                 }
 409             }
 410
 411
 412             // If that's not a directory -> List its parent
 413             if(!directory.isFolder()){
 414                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 415                 directory = storageManager.getFileById(directory.getParentId());
 416             }
 417
 418             mAdapter.swapDirectory(directory, storageManager);
 419             if (mFile == null || !mFile.equals(directory)) {
 420                 mList.setSelectionFromTop(0, 0);
 421             }
 422             mFile = directory;
 423         }
 424     }
 425
 426
 427
 428     /**
 429      * Interface to implement by any Activity that includes some instance of FileListFragment
 430      *
 431      * @author David A. Velasco
 432      */
 433     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 434
 435         /**
 436          * Callback method invoked when a the user browsed into a different folder through the list of files
 437          *
 438          * @param file
 439          */
 440         public void onBrowsedDownTo(OCFile folder);
 441
 442         public void startDownloadForPreview(OCFile file);
 443
 444         public void startMediaPreview(OCFile file, int i, boolean b);
 445
 446         public void startImagePreview(OCFile file);
 447
 448         public void startSyncFolderOperation(OCFile folder);
 449
 450         /**
 451          * Getter for the current DataStorageManager in the container activity
 452          */
 453         public FileDataStorageManager getStorageManager();
 454
 455
 456         /**
 457          * Callback method invoked when a the 'transfer state' of a file changes.
 458          *
 459          * This happens when a download or upload is started or ended for a file.
 460          *
 461          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 462          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 463          * won't provide the needed response before the method where this is called finishes.
 464          *
 465          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 466          *
 467          * @param file          OCFile which state changed.
 468          * @param downloading   Flag signaling if the file is now downloading.
 469          * @param uploading     Flag signaling if the file is now uploading.
 470          */
 471         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 472
 473     }
 474
 475
 476     @Override
 477     public void onDismiss(EditNameDialog dialog) {
 478         if (dialog.getResult()) {
 479             String newFilename = dialog.getNewFilename();
 480             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 481             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 482                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 483                                                                 newFilename,
 484                                                                 mContainerActivity.getStorageManager());
 485             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 486             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 487         }
 488     }
 489
 490
 491     @Override
 492     public void onConfirmation(String callerTag) {
 493         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 494             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 495                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 496                                                                     true,
 497                                                                     mContainerActivity.getStorageManager());
 498                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 499
 500                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 501             }
 502         }
 503     }
 504
 505     @Override
 506     public void onNeutral(String callerTag) {
 507         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 508         listDirectory();
 509         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 510     }
 511
 512     @Override
 513     public void onCancel(String callerTag) {
 514         Log_OC.d(TAG, "REMOVAL CANCELED");
 515     }
 516
 517
 518 }