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_unshare_file: {
 289                 mContainerActivity.unshareFileWithLink(mTargetFile);
 290                 return true;
 291             }
 292             case R.id.action_rename_file: {
 293                 String fileName = mTargetFile.getFileName();
 294                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 295                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 296                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 297                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 298                 return true;
 299             }
 300             case R.id.action_remove_file: {
 301                 int messageStringId = R.string.confirmation_remove_alert;
 302                 int posBtnStringId = R.string.confirmation_remove_remote;
 303                 int neuBtnStringId = -1;
 304                 if (mTargetFile.isFolder()) {
 305                     messageStringId = R.string.confirmation_remove_folder_alert;
 306                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 307                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 308                 } else if (mTargetFile.isDown()) {
 309                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 310                     neuBtnStringId = R.string.confirmation_remove_local;
 311                 }
 312                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 313                         messageStringId,
 314                         new String[]{mTargetFile.getFileName()},
 315                         posBtnStringId,
 316                         neuBtnStringId,
 317                         R.string.common_cancel);
 318                 confDialog.setOnConfirmationListener(this);
 319                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 320                 return true;
 321             }
 322             case R.id.action_sync_file: {
 323                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 324                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 325                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 326                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 327                 return true;
 328             }
 329             case R.id.action_cancel_download: {
 330                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 331                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 332                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 333                     downloaderBinder.cancel(account, mTargetFile);
 334                     listDirectory();
 335                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 336                 }
 337                 return true;
 338             }
 339             case R.id.action_cancel_upload: {
 340                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 341                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 342                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 343                     uploaderBinder.cancel(account, mTargetFile);
 344                     listDirectory();
 345                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 346                 }
 347                 return true;
 348             }
 349             case R.id.action_see_details: {
 350                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 351                 return true;
 352             }
 353             default:
 354                 return super.onContextItemSelected(item);
 355         }
 356     }
 357
 358
 359     /**
 360      * {@inheritDoc}
 361      */
 362     @Override
 363     public void onPrepareOptionsMenu(Menu menu) {
 364         super.onPrepareOptionsMenu(menu);
 365
 366         List<Integer> toHide = new ArrayList<Integer>();
 367         MenuItem item = null;
 368         for (int i : toHide) {
 369             item = (MenuItem) menu.findItem(i);
 370             if (item != null) {
 371                 item.setVisible(false);
 372                 item.setEnabled(false);
 373             }
 374         }
 375     }
 376
 377
 378     /**
 379      * Use this to query the {@link OCFile} that is currently
 380      * being displayed by this fragment
 381      * @return The currently viewed OCFile
 382      */
 383     public OCFile getCurrentFile(){
 384         return mFile;
 385     }
 386
 387     /**
 388      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 389      */
 390     public void listDirectory(){
 391         listDirectory(null);
 392     }
 393
 394     /**
 395      * Lists the given directory on the view. When the input parameter is null,
 396      * it will either refresh the last known directory. list the root
 397      * if there never was a directory.
 398      *
 399      * @param directory File to be listed
 400      */
 401     public void listDirectory(OCFile directory) {
 402         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 403         if (storageManager != null) {
 404
 405             // Check input parameters for null
 406             if(directory == null){
 407                 if(mFile != null){
 408                     directory = mFile;
 409                 } else {
 410                     directory = storageManager.getFileByPath("/");
 411                     if (directory == null) return; // no files, wait for sync
 412                 }
 413             }
 414
 415
 416             // If that's not a directory -> List its parent
 417             if(!directory.isFolder()){
 418                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 419                 directory = storageManager.getFileById(directory.getParentId());
 420             }
 421
 422             mAdapter.swapDirectory(directory, storageManager);
 423             if (mFile == null || !mFile.equals(directory)) {
 424                 mList.setSelectionFromTop(0, 0);
 425             }
 426             mFile = directory;
 427         }
 428     }
 429
 430
 431
 432     /**
 433      * Interface to implement by any Activity that includes some instance of FileListFragment
 434      *
 435      * @author David A. Velasco
 436      */
 437     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 438
 439         /**
 440          * Callback method invoked when a the user browsed into a different folder through the list of files
 441          *
 442          * @param file
 443          */
 444         public void onBrowsedDownTo(OCFile folder);
 445
 446         public void unshareFileWithLink(OCFile mTargetFile);
 447
 448         public void startDownloadForPreview(OCFile file);
 449
 450         public void startMediaPreview(OCFile file, int i, boolean b);
 451
 452         public void startImagePreview(OCFile file);
 453
 454         public void startSyncFolderOperation(OCFile folder);
 455
 456         /**
 457          * Getter for the current DataStorageManager in the container activity
 458          */
 459         public FileDataStorageManager getStorageManager();
 460
 461
 462         /**
 463          * Callback method invoked when a the 'transfer state' of a file changes.
 464          *
 465          * This happens when a download or upload is started or ended for a file.
 466          *
 467          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 468          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 469          * won't provide the needed response before the method where this is called finishes.
 470          *
 471          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 472          *
 473          * @param file          OCFile which state changed.
 474          * @param downloading   Flag signaling if the file is now downloading.
 475          * @param uploading     Flag signaling if the file is now uploading.
 476          */
 477         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 478
 479     }
 480
 481
 482     @Override
 483     public void onDismiss(EditNameDialog dialog) {
 484         if (dialog.getResult()) {
 485             String newFilename = dialog.getNewFilename();
 486             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 487             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 488                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 489                                                                 newFilename,
 490                                                                 mContainerActivity.getStorageManager());
 491             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 492             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 493         }
 494     }
 495
 496
 497     @Override
 498     public void onConfirmation(String callerTag) {
 499         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 500             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 501                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 502                                                                     true,
 503                                                                     mContainerActivity.getStorageManager());
 504                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 505
 506                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 507             }
 508         }
 509     }
 510
 511     @Override
 512     public void onNeutral(String callerTag) {
 513         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 514         listDirectory();
 515         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 516     }
 517
 518     @Override
 519     public void onCancel(String callerTag) {
 520         Log_OC.d(TAG, "REMOVAL CANCELED");
 521     }
 522
 523
 524 }