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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18 package com.owncloud.android.ui.fragment;
  19
  20 import java.io.File;
  21 import java.util.ArrayList;
  22 import java.util.List;
  23
  24 import com.owncloud.android.Log_OC;
  25 import com.owncloud.android.R;
  26 import com.owncloud.android.authentication.AccountUtils;
  27 import com.owncloud.android.datamodel.DataStorageManager;
  28 import com.owncloud.android.datamodel.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.operations.OnRemoteOperationListener;
  33 import com.owncloud.android.operations.RemoteOperation;
  34 import com.owncloud.android.operations.RemoteOperationResult;
  35 import com.owncloud.android.operations.RemoveFileOperation;
  36 import com.owncloud.android.operations.RenameFileOperation;
  37 import com.owncloud.android.operations.SynchronizeFileOperation;
  38 import com.owncloud.android.ui.activity.FileDisplayActivity;
  39 import com.owncloud.android.ui.activity.TransferServiceGetter;
  40 import com.owncloud.android.ui.adapter.FileListListAdapter;
  41 import com.owncloud.android.ui.dialog.EditNameDialog;
  42 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  43 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  44 import com.owncloud.android.ui.preview.PreviewImageFragment;
  45 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  46
  47 import android.accounts.Account;
  48 import android.app.Activity;
  49 import android.os.Bundle;
  50 import android.os.Handler;
  51 import android.view.ContextMenu;
  52 import android.view.MenuInflater;
  53 import android.view.MenuItem;
  54 import android.view.View;
  55 import android.widget.AdapterView;
  56 import android.widget.AdapterView.AdapterContextMenuInfo;
  57
  58 /**
  59  * A Fragment that lists all files and folders in a given path.
  60  *
  61  * @author Bartek Przybylski
  62  *
  63  */
  64 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  65
  66     private static final String TAG = OCFileListFragment.class.getSimpleName();
  67
  68     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  69     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  70
  71     private OCFileListFragment.ContainerActivity mContainerActivity;
  72
  73     private OCFile mFile = null;
  74     private FileListListAdapter mAdapter;
  75
  76     private Handler mHandler;
  77     private OCFile mTargetFile;
  78
  79     /**
  80      * {@inheritDoc}
  81      */
  82     @Override
  83     public void onAttach(Activity activity) {
  84         super.onAttach(activity);
  85         Log_OC.e(TAG, "onAttach");
  86         try {
  87             mContainerActivity = (ContainerActivity) activity;
  88         } catch (ClassCastException e) {
  89             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  90         }
  91     }
  92
  93
  94     /**
  95      * {@inheritDoc}
  96      */
  97     @Override
  98     public void onActivityCreated(Bundle savedInstanceState) {
  99         super.onActivityCreated(savedInstanceState);
 100         Log_OC.e(TAG, "onActivityCreated() start");
 101         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 102         if (savedInstanceState != null) {
 103             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 104         }
 105         setListAdapter(mAdapter);
 106
 107         registerForContextMenu(getListView());
 108         getListView().setOnCreateContextMenuListener(this);
 109
 110         mHandler = new Handler();
 111
 112     }
 113
 114     /**
 115      * Saves the current listed folder.
 116      */
 117     @Override
 118     public void onSaveInstanceState (Bundle outState) {
 119         super.onSaveInstanceState(outState);
 120         outState.putParcelable(EXTRA_FILE, mFile);
 121     }
 122
 123
 124     /**
 125      * Call this, when the user presses the up button
 126      */
 127     public void onBrowseUp() {
 128         OCFile parentDir = null;
 129
 130         if(mFile != null){
 131             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 132             parentDir = storageManager.getFileById(mFile.getParentId());
 133             mFile = parentDir;
 134         }
 135         listDirectory(parentDir);
 136
 137         mContainerActivity.syncFolderOperation(mFile.getRemotePath(), mFile.getParentId());
 138
 139     }
 140
 141     @Override
 142     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 143         OCFile file = (OCFile) mAdapter.getItem(position);
 144         if (file != null) {
 145             if (file.isDirectory()) {
 146                 // update state and view of this fragment
 147                 listDirectory(file);
 148                 // then, notify parent activity to let it update its state and view, and other fragments
 149                 mContainerActivity.onBrowsedDownTo(file);
 150
 151             } else { /// Click on a file
 152                 if (PreviewImageFragment.canBePreviewed(file)) {
 153                     // preview image - it handles the download, if needed
 154                     mContainerActivity.startImagePreview(file);
 155
 156                 } else if (file.isDown()) {
 157                     if (PreviewMediaFragment.canBePreviewed(file)) {
 158                         // media preview
 159                         mContainerActivity.startMediaPreview(file, 0, true);
 160                     } else {
 161                         // open with
 162                         mContainerActivity.openFile(file);
 163                     }
 164
 165                 } else {
 166                     // automatic download, preview on finish
 167                     mContainerActivity.startDownloadForPreview(file);
 168                 }
 169
 170             }
 171
 172         } else {
 173             Log_OC.d(TAG, "Null object in ListAdapter!!");
 174         }
 175
 176     }
 177
 178     /**
 179      * {@inheritDoc}
 180      */
 181     @Override
 182     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 183         super.onCreateContextMenu(menu, v, menuInfo);
 184         MenuInflater inflater = getActivity().getMenuInflater();
 185         inflater.inflate(R.menu.file_actions_menu, menu);
 186         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 187         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 188         List<Integer> toHide = new ArrayList<Integer>();
 189         List<Integer> toDisable = new ArrayList<Integer>();
 190
 191         MenuItem item = null;
 192         if (targetFile.isDirectory()) {
 193             // contextual menu for folders
 194             toHide.add(R.id.action_open_file_with);
 195             toHide.add(R.id.action_download_file);
 196             toHide.add(R.id.action_cancel_download);
 197             toHide.add(R.id.action_cancel_upload);
 198             toHide.add(R.id.action_sync_file);
 199             toHide.add(R.id.action_see_details);
 200             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 201                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 202                 toDisable.add(R.id.action_rename_file);
 203                 toDisable.add(R.id.action_remove_file);
 204
 205             }
 206
 207         } else {
 208             // contextual menu for regular files
 209
 210             // new design: 'download' and 'open with' won't be available anymore in context menu
 211             toHide.add(R.id.action_download_file);
 212             toHide.add(R.id.action_open_file_with);
 213
 214             if (targetFile.isDown()) {
 215                 toHide.add(R.id.action_cancel_download);
 216                 toHide.add(R.id.action_cancel_upload);
 217
 218             } else {
 219                 toHide.add(R.id.action_sync_file);
 220             }
 221             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 222                 toHide.add(R.id.action_cancel_upload);
 223                 toDisable.add(R.id.action_rename_file);
 224                 toDisable.add(R.id.action_remove_file);
 225
 226             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 227                 toHide.add(R.id.action_cancel_download);
 228                 toDisable.add(R.id.action_rename_file);
 229                 toDisable.add(R.id.action_remove_file);
 230
 231             } else {
 232                 toHide.add(R.id.action_cancel_download);
 233                 toHide.add(R.id.action_cancel_upload);
 234             }
 235         }
 236
 237         for (int i : toHide) {
 238             item = menu.findItem(i);
 239             if (item != null) {
 240                 item.setVisible(false);
 241                 item.setEnabled(false);
 242             }
 243         }
 244
 245         for (int i : toDisable) {
 246             item = menu.findItem(i);
 247             if (item != null) {
 248                 item.setEnabled(false);
 249             }
 250         }
 251     }
 252
 253
 254     /**
 255      * {@inhericDoc}
 256      */
 257     @Override
 258     public boolean onContextItemSelected (MenuItem item) {
 259         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 260         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 261         switch (item.getItemId()) {
 262             case R.id.action_rename_file: {
 263                 String fileName = mTargetFile.getFileName();
 264                 int extensionStart = mTargetFile.isDirectory() ? -1 : fileName.lastIndexOf(".");
 265                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 266                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 267                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 268                 return true;
 269             }
 270             case R.id.action_remove_file: {
 271                 int messageStringId = R.string.confirmation_remove_alert;
 272                 int posBtnStringId = R.string.confirmation_remove_remote;
 273                 int neuBtnStringId = -1;
 274                 if (mTargetFile.isDirectory()) {
 275                     messageStringId = R.string.confirmation_remove_folder_alert;
 276                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 277                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 278                 } else if (mTargetFile.isDown()) {
 279                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 280                     neuBtnStringId = R.string.confirmation_remove_local;
 281                 }
 282                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 283                         messageStringId,
 284                         new String[]{mTargetFile.getFileName()},
 285                         posBtnStringId,
 286                         neuBtnStringId,
 287                         R.string.common_cancel);
 288                 confDialog.setOnConfirmationListener(this);
 289                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 290                 return true;
 291             }
 292             case R.id.action_sync_file: {
 293                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 294                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 295                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 296                 getSherlockActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 297                 return true;
 298             }
 299             case R.id.action_cancel_download: {
 300                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 301                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 302                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 303                     downloaderBinder.cancel(account, mTargetFile);
 304                     listDirectory();
 305                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 306                 }
 307                 return true;
 308             }
 309             case R.id.action_cancel_upload: {
 310                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 311                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 312                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 313                     uploaderBinder.cancel(account, mTargetFile);
 314                     listDirectory();
 315                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 316                 }
 317                 return true;
 318             }
 319             case R.id.action_see_details: {
 320                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 321                 return true;
 322             }
 323             default:
 324                 return super.onContextItemSelected(item);
 325         }
 326     }
 327
 328
 329     /**
 330      * Use this to query the {@link OCFile} that is currently
 331      * being displayed by this fragment
 332      * @return The currently viewed OCFile
 333      */
 334     public OCFile getCurrentFile(){
 335         return mFile;
 336     }
 337
 338     /**
 339      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 340      */
 341     public void listDirectory(){
 342         listDirectory(null);
 343     }
 344
 345     /**
 346      * Lists the given directory on the view. When the input parameter is null,
 347      * it will either refresh the last known directory. list the root
 348      * if there never was a directory.
 349      *
 350      * @param directory File to be listed
 351      */
 352     public void listDirectory(OCFile directory) {
 353         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 354         if (storageManager != null) {
 355
 356             // Check input parameters for null
 357             if(directory == null){
 358                 if(mFile != null){
 359                     directory = mFile;
 360                 } else {
 361                     directory = storageManager.getFileByPath("/");
 362                     if (directory == null) return; // no files, wait for sync
 363                 }
 364             }
 365
 366
 367             // If that's not a directory -> List its parent
 368             if(!directory.isDirectory()){
 369                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 370                 directory = storageManager.getFileById(directory.getParentId());
 371             }
 372
 373             mAdapter.swapDirectory(directory, storageManager);
 374             if (mFile == null || !mFile.equals(directory)) {
 375                 mList.setSelectionFromTop(0, 0);
 376             }
 377             mFile = directory;
 378         }
 379     }
 380
 381
 382
 383     /**
 384      * Interface to implement by any Activity that includes some instance of FileListFragment
 385      *
 386      * @author David A. Velasco
 387      */
 388     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 389
 390         /**
 391          * Callback method invoked when a the user browsed into a different folder through the list of files
 392          *
 393          * @param file
 394          */
 395         public void onBrowsedDownTo(OCFile folder);
 396
 397         public void startDownloadForPreview(OCFile file);
 398
 399         public void startMediaPreview(OCFile file, int i, boolean b);
 400
 401         public void startImagePreview(OCFile file);
 402
 403         public void syncFolderOperation(String remotePath, long parentId);
 404
 405         /**
 406          * Getter for the current DataStorageManager in the container activity
 407          */
 408         public DataStorageManager getStorageManager();
 409
 410
 411         /**
 412          * Callback method invoked when a the 'transfer state' of a file changes.
 413          *
 414          * This happens when a download or upload is started or ended for a file.
 415          *
 416          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 417          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 418          * won't provide the needed response before the method where this is called finishes.
 419          *
 420          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 421          *
 422          * @param file          OCFile which state changed.
 423          * @param downloading   Flag signaling if the file is now downloading.
 424          * @param uploading     Flag signaling if the file is now uploading.
 425          */
 426         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 427
 428     }
 429
 430
 431     @Override
 432     public void onDismiss(EditNameDialog dialog) {
 433         if (dialog.getResult()) {
 434             String newFilename = dialog.getNewFilename();
 435             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 436             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 437                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 438                                                                 newFilename,
 439                                                                 mContainerActivity.getStorageManager());
 440             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 441             getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 442         }
 443     }
 444
 445
 446     @Override
 447     public void onConfirmation(String callerTag) {
 448         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 449             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 450                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 451                                                                     true,
 452                                                                     mContainerActivity.getStorageManager());
 453                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 454
 455                 getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 456             }
 457         }
 458     }
 459
 460     @Override
 461     public void onNeutral(String callerTag) {
 462         File f = null;
 463         if (mTargetFile.isDirectory()) {
 464             // TODO run in a secondary thread?
 465             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 466
 467         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 468             f.delete();
 469             mTargetFile.setStoragePath(null);
 470             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 471         }
 472         listDirectory();
 473         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 474     }
 475
 476     @Override
 477     public void onCancel(String callerTag) {
 478         Log_OC.d(TAG, "REMOVAL CANCELED");
 479     }
 480
 481
 482 }