src/com/owncloud/android/ui/fragment/OCFileListFragment.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18 package com.owncloud.android.ui.fragment;
  19
  20 import java.io.File;
  21 import java.util.ArrayList;
  22 import java.util.List;
  23
  24 import com.owncloud.android.R;
  25 import com.owncloud.android.authentication.AccountUtils;
  26 import com.owncloud.android.datamodel.FileDataStorageManager;
  27 import com.owncloud.android.datamodel.OCFile;
  28 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  29 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  30 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  31 import com.owncloud.android.lib.common.operations.RemoteOperation;
  32 import com.owncloud.android.operations.RemoveFileOperation;
  33 import com.owncloud.android.operations.RenameFileOperation;
  34 import com.owncloud.android.operations.SynchronizeFileOperation;
  35 import com.owncloud.android.ui.activity.FileDisplayActivity;
  36 import com.owncloud.android.ui.activity.TransferServiceGetter;
  37 import com.owncloud.android.ui.adapter.FileListListAdapter;
  38 import com.owncloud.android.ui.dialog.EditNameDialog;
  39 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  40 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  41 import com.owncloud.android.ui.preview.PreviewImageFragment;
  42 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  43 import com.owncloud.android.utils.Log_OC;
  44
  45 import android.accounts.Account;
  46 import android.app.Activity;
  47 import android.os.Bundle;
  48 import android.os.Handler;
  49 import android.view.ContextMenu;
  50 import android.view.MenuInflater;
  51 import android.view.MenuItem;
  52 import android.view.View;
  53 import android.widget.AdapterView;
  54 import android.widget.AdapterView.AdapterContextMenuInfo;
  55
  56 /**
  57  * A Fragment that lists all files and folders in a given path.
  58  *
  59  * @author Bartek Przybylski
  60  *
  61  */
  62 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  63
  64     private static final String TAG = OCFileListFragment.class.getSimpleName();
  65
  66     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  67     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  68
  69     private static final String KEY_INDEXES = "INDEXES";
  70     private static final String KEY_TOPS = "TOPS";
  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     private ArrayList<Integer> mIndexes;
  81     private ArrayList<Integer> mTops;
  82
  83
  84     /**
  85      * {@inheritDoc}
  86      */
  87     @Override
  88     public void onAttach(Activity activity) {
  89         super.onAttach(activity);
  90         Log_OC.e(TAG, "onAttach");
  91         try {
  92             mContainerActivity = (ContainerActivity) activity;
  93         } catch (ClassCastException e) {
  94             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  95         }
  96     }
  97
  98
  99     /**
 100      * {@inheritDoc}
 101      */
 102     @Override
 103     public void onActivityCreated(Bundle savedInstanceState) {
 104         super.onActivityCreated(savedInstanceState);
 105         Log_OC.e(TAG, "onActivityCreated() start");
 106         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 107         if (savedInstanceState != null) {
 108             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 109             mIndexes = savedInstanceState.getIntegerArrayList(KEY_INDEXES);
 110             mTops = savedInstanceState.getIntegerArrayList(KEY_TOPS);
 111
 112         } else {
 113             mIndexes = new ArrayList<Integer>();
 114             mTops = new ArrayList<Integer>();
 115
 116         }
 117
 118         setListAdapter(mAdapter);
 119
 120         registerForContextMenu(getListView());
 121         getListView().setOnCreateContextMenuListener(this);
 122
 123         mHandler = new Handler();
 124
 125     }
 126
 127     /**
 128      * Saves the current listed folder.
 129      */
 130     @Override
 131     public void onSaveInstanceState (Bundle outState) {
 132         super.onSaveInstanceState(outState);
 133         outState.putParcelable(EXTRA_FILE, mFile);
 134         outState.putIntegerArrayList(KEY_INDEXES, mIndexes);
 135         outState.putIntegerArrayList(KEY_TOPS, mTops);
 136     }
 137
 138     /**
 139      * Call this, when the user presses the up button.
 140      *
 141      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 142      * it continues browsing up until finding an existing folders.
 143      *
 144      * return       Count of folder levels browsed up.
 145      */
 146     public int onBrowseUp() {
 147         OCFile parentDir = null;
 148         int moveCount = 0;
 149
 150         if(mFile != null){
 151             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 152
 153             String parentPath = null;
 154             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 155                 parentPath = new File(mFile.getRemotePath()).getParent();
 156                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 157                 parentDir = storageManager.getFileByPath(parentPath);
 158                 moveCount++;
 159             } else {
 160                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);    // never returns null; keep the path in root folder
 161             }
 162             while (parentDir == null) {
 163                 parentPath = new File(parentPath).getParent();
 164                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 165                 parentDir = storageManager.getFileByPath(parentPath);
 166                 moveCount++;
 167             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 168             mFile = parentDir;
 169         }
 170
 171         if (mFile != null) {
 172             listDirectory(mFile);
 173
 174             mContainerActivity.startSyncFolderOperation(mFile);
 175
 176             // restore index and position
 177             restoreIndexAndPosition();
 178
 179         }   // else - should never happen now
 180
 181         return moveCount;
 182     }
 183
 184     /*
 185      * Restore index and position
 186      */
 187     private void restoreIndexAndPosition() {
 188         int index = mIndexes.get(mIndexes.size() - 1);
 189         mIndexes.remove(mIndexes.size() - 1);
 190         int top = mTops.get(mTops.size() - 1);
 191         mTops.remove(mTops.size() - 1);
 192         mList.setSelectionFromTop(index, top);
 193     }
 194
 195     /*
 196      * Save index and top position
 197      */
 198     private void saveIndexAndPosition(int index) {
 199
 200         mIndexes.add(index);
 201         View view = mList.getChildAt(0);
 202         mTops.add( (view == null) ? 0 : view.getTop() );
 203     }
 204
 205     @Override
 206     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 207         OCFile file = (OCFile) mAdapter.getItem(position);
 208         if (file != null) {
 209             if (file.isFolder()) {
 210                 // update state and view of this fragment
 211                 listDirectory(file);
 212                 // then, notify parent activity to let it update its state and view, and other fragments
 213                 mContainerActivity.onBrowsedDownTo(file);
 214
 215                 // save index and top position
 216                saveIndexAndPosition(position);
 217
 218             } else { /// Click on a file
 219                 if (PreviewImageFragment.canBePreviewed(file)) {
 220                     // preview image - it handles the download, if needed
 221                     mContainerActivity.startImagePreview(file);
 222
 223                 } else if (file.isDown()) {
 224                     if (PreviewMediaFragment.canBePreviewed(file)) {
 225                         // media preview
 226                         mContainerActivity.startMediaPreview(file, 0, true);
 227                     } else {
 228                         FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 229                         activity.getFileOperationsHelper().openFile(file, activity);
 230                     }
 231
 232                 } else {
 233                     // automatic download, preview on finish
 234                     mContainerActivity.startDownloadForPreview(file);
 235                 }
 236
 237             }
 238
 239         } else {
 240             Log_OC.d(TAG, "Null object in ListAdapter!!");
 241         }
 242
 243     }
 244
 245     /**
 246      * {@inheritDoc}
 247      */
 248     @Override
 249     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 250         super.onCreateContextMenu(menu, v, menuInfo);
 251         MenuInflater inflater = getActivity().getMenuInflater();
 252         inflater.inflate(R.menu.file_actions_menu, menu);
 253         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 254         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 255         List<Integer> toHide = new ArrayList<Integer>();
 256         List<Integer> toDisable = new ArrayList<Integer>();
 257
 258         MenuItem item = null;
 259         if (targetFile.isFolder()) {
 260             // contextual menu for folders
 261             toHide.add(R.id.action_open_file_with);
 262             toHide.add(R.id.action_download_file);
 263             toHide.add(R.id.action_cancel_download);
 264             toHide.add(R.id.action_cancel_upload);
 265             toHide.add(R.id.action_sync_file);
 266             toHide.add(R.id.action_see_details);
 267             toHide.add(R.id.action_send_file);
 268             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 269                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 270                 toDisable.add(R.id.action_rename_file);
 271                 toDisable.add(R.id.action_remove_file);
 272
 273             }
 274
 275         } else {
 276             // contextual menu for regular files
 277
 278             // new design: 'download' and 'open with' won't be available anymore in context menu
 279             toHide.add(R.id.action_download_file);
 280             toHide.add(R.id.action_open_file_with);
 281
 282             if (targetFile.isDown()) {
 283                 toHide.add(R.id.action_cancel_download);
 284                 toHide.add(R.id.action_cancel_upload);
 285
 286             } else {
 287                 toHide.add(R.id.action_sync_file);
 288             }
 289             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 290                 toHide.add(R.id.action_cancel_upload);
 291                 toDisable.add(R.id.action_rename_file);
 292                 toDisable.add(R.id.action_remove_file);
 293
 294             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 295                 toHide.add(R.id.action_cancel_download);
 296                 toDisable.add(R.id.action_rename_file);
 297                 toDisable.add(R.id.action_remove_file);
 298
 299             } else {
 300                 toHide.add(R.id.action_cancel_download);
 301                 toHide.add(R.id.action_cancel_upload);
 302             }
 303         }
 304
 305         // Options shareLink
 306         if (!targetFile.isShareByLink()) {
 307             toHide.add(R.id.action_unshare_file);
 308         }
 309
 310         // Send file
 311         boolean sendEnabled = getString(R.string.send_files_to_other_apps).equalsIgnoreCase("on");
 312         if (!sendEnabled) {
 313             toHide.add(R.id.action_send_file);
 314         }
 315
 316         for (int i : toHide) {
 317             item = menu.findItem(i);
 318             if (item != null) {
 319                 item.setVisible(false);
 320                 item.setEnabled(false);
 321             }
 322         }
 323
 324         for (int i : toDisable) {
 325             item = menu.findItem(i);
 326             if (item != null) {
 327                 item.setEnabled(false);
 328             }
 329         }
 330     }
 331
 332
 333     /**
 334      * {@inhericDoc}
 335      */
 336     @Override
 337     public boolean onContextItemSelected (MenuItem item) {
 338         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 339         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 340         switch (item.getItemId()) {
 341             case R.id.action_share_file: {
 342                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 343                 activity.getFileOperationsHelper().shareFileWithLink(mTargetFile, activity);
 344                 return true;
 345             }
 346             case R.id.action_unshare_file: {
 347                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 348                 activity.getFileOperationsHelper().unshareFileWithLink(mTargetFile, activity);
 349                 return true;
 350             }
 351             case R.id.action_rename_file: {
 352                 String fileName = mTargetFile.getFileName();
 353                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 354                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 355                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 356                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 357                 return true;
 358             }
 359             case R.id.action_remove_file: {
 360                 int messageStringId = R.string.confirmation_remove_alert;
 361                 int posBtnStringId = R.string.confirmation_remove_remote;
 362                 int neuBtnStringId = -1;
 363                 if (mTargetFile.isFolder()) {
 364                     messageStringId = R.string.confirmation_remove_folder_alert;
 365                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 366                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 367                 } else if (mTargetFile.isDown()) {
 368                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 369                     neuBtnStringId = R.string.confirmation_remove_local;
 370                 }
 371                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 372                         messageStringId,
 373                         new String[]{mTargetFile.getFileName()},
 374                         posBtnStringId,
 375                         neuBtnStringId,
 376                         R.string.common_cancel);
 377                 confDialog.setOnConfirmationListener(this);
 378                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 379                 return true;
 380             }
 381             case R.id.action_sync_file: {
 382                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 383                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 384                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 385                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 386                 return true;
 387             }
 388             case R.id.action_cancel_download: {
 389                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 390                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 391                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 392                     downloaderBinder.cancel(account, mTargetFile);
 393                     listDirectory();
 394                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 395                 }
 396                 return true;
 397             }
 398             case R.id.action_cancel_upload: {
 399                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 400                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 401                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 402                     uploaderBinder.cancel(account, mTargetFile);
 403                     listDirectory();
 404                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 405                 }
 406                 return true;
 407             }
 408             case R.id.action_see_details: {
 409                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 410                 return true;
 411             }
 412             case R.id.action_send_file: {
 413                 // Obtain the file
 414                 if (!mTargetFile.isDown()) {  // Download the file
 415                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 416                     mContainerActivity.startDownloadForSending(mTargetFile);
 417
 418                 } else {
 419
 420                     FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
 421                     activity.getFileOperationsHelper().sendDownloadedFile(mTargetFile, activity);
 422                 }
 423                 return true;
 424             }
 425             default:
 426                 return super.onContextItemSelected(item);
 427         }
 428     }
 429
 430
 431     /**
 432      * Use this to query the {@link OCFile} that is currently
 433      * being displayed by this fragment
 434      * @return The currently viewed OCFile
 435      */
 436     public OCFile getCurrentFile(){
 437         return mFile;
 438     }
 439
 440     /**
 441      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 442      */
 443     public void listDirectory(){
 444         listDirectory(null);
 445     }
 446
 447     /**
 448      * Lists the given directory on the view. When the input parameter is null,
 449      * it will either refresh the last known directory. list the root
 450      * if there never was a directory.
 451      *
 452      * @param directory File to be listed
 453      */
 454     public void listDirectory(OCFile directory) {
 455         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 456         if (storageManager != null) {
 457
 458             // Check input parameters for null
 459             if(directory == null){
 460                 if(mFile != null){
 461                     directory = mFile;
 462                 } else {
 463                     directory = storageManager.getFileByPath("/");
 464                     if (directory == null) return; // no files, wait for sync
 465                 }
 466             }
 467
 468
 469             // If that's not a directory -> List its parent
 470             if(!directory.isFolder()){
 471                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 472                 directory = storageManager.getFileById(directory.getParentId());
 473             }
 474
 475             mAdapter.swapDirectory(directory, storageManager);
 476             if (mFile == null || !mFile.equals(directory)) {
 477                 mList.setSelectionFromTop(0, 0);
 478             }
 479             mFile = directory;
 480         }
 481     }
 482
 483
 484
 485     /**
 486      * Interface to implement by any Activity that includes some instance of FileListFragment
 487      *
 488      * @author David A. Velasco
 489      */
 490     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 491
 492         /**
 493          * Callback method invoked when a the user browsed into a different folder through the list of files
 494          *
 495          * @param file
 496          */
 497         public void onBrowsedDownTo(OCFile folder);
 498
 499         public void startDownloadForPreview(OCFile file);
 500
 501         public void startMediaPreview(OCFile file, int i, boolean b);
 502
 503         public void startImagePreview(OCFile file);
 504
 505         public void startSyncFolderOperation(OCFile folder);
 506
 507         /**
 508          * Getter for the current DataStorageManager in the container activity
 509          */
 510         public FileDataStorageManager getStorageManager();
 511
 512
 513         /**
 514          * Callback method invoked when a the 'transfer state' of a file changes.
 515          *
 516          * This happens when a download or upload is started or ended for a file.
 517          *
 518          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 519          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 520          * won't provide the needed response before the method where this is called finishes.
 521          *
 522          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 523          *
 524          * @param file          OCFile which state changed.
 525          * @param downloading   Flag signaling if the file is now downloading.
 526          * @param uploading     Flag signaling if the file is now uploading.
 527          */
 528         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 529
 530         void startDownloadForSending(OCFile file);
 531
 532     }
 533
 534
 535     @Override
 536     public void onDismiss(EditNameDialog dialog) {
 537         if (dialog.getResult()) {
 538             String newFilename = dialog.getNewFilename();
 539             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 540             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 541                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 542                                                                 newFilename,
 543                                                                 mContainerActivity.getStorageManager());
 544             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 545             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 546         }
 547     }
 548
 549
 550     @Override
 551     public void onConfirmation(String callerTag) {
 552         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 553             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 554                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 555                                                                     true,
 556                                                                     mContainerActivity.getStorageManager());
 557                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 558
 559                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 560             }
 561         }
 562     }
 563
 564     @Override
 565     public void onNeutral(String callerTag) {
 566         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 567         listDirectory();
 568         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 569     }
 570
 571     @Override
 572     public void onCancel(String callerTag) {
 573         Log_OC.d(TAG, "REMOVAL CANCELED");
 574     }
 575
 576
 577 }