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.RemoveFileOperation;
  35 import com.owncloud.android.operations.RenameFileOperation;
  36 import com.owncloud.android.operations.SynchronizeFileOperation;
  37 import com.owncloud.android.ui.activity.FileDisplayActivity;
  38 import com.owncloud.android.ui.activity.TransferServiceGetter;
  39 import com.owncloud.android.ui.adapter.FileListListAdapter;
  40 import com.owncloud.android.ui.dialog.EditNameDialog;
  41 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  42 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  43 import com.owncloud.android.ui.preview.PreviewImageFragment;
  44 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  45
  46
  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
 138     @Override
 139     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 140         OCFile file = (OCFile) mAdapter.getItem(position);
 141         if (file != null) {
 142             if (file.isDirectory()) {
 143                 // update state and view of this fragment
 144                 listDirectory(file);
 145                 // then, notify parent activity to let it update its state and view, and other fragments
 146                 mContainerActivity.onBrowsedDownTo(file);
 147
 148             } else { /// Click on a file
 149                 if (PreviewImageFragment.canBePreviewed(file)) {
 150                     // preview image - it handles the download, if needed
 151                     mContainerActivity.startImagePreview(file);
 152
 153                 } else if (file.isDown()) {
 154                     if (PreviewMediaFragment.canBePreviewed(file)) {
 155                         // media preview
 156                         mContainerActivity.startMediaPreview(file, 0, true);
 157                     } else {
 158                         // open with
 159                         mContainerActivity.openFile(file);
 160                     }
 161
 162                 } else {
 163                     // automatic download, preview on finish
 164                     mContainerActivity.startDownloadForPreview(file);
 165                 }
 166
 167             }
 168
 169         } else {
 170             Log_OC.d(TAG, "Null object in ListAdapter!!");
 171         }
 172
 173     }
 174
 175     /**
 176      * {@inheritDoc}
 177      */
 178     @Override
 179     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 180         super.onCreateContextMenu(menu, v, menuInfo);
 181         MenuInflater inflater = getActivity().getMenuInflater();
 182         inflater.inflate(R.menu.file_actions_menu, menu);
 183         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 184         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 185         List<Integer> toHide = new ArrayList<Integer>();
 186         List<Integer> toDisable = new ArrayList<Integer>();
 187
 188         MenuItem item = null;
 189         if (targetFile.isDirectory()) {
 190             // contextual menu for folders
 191             toHide.add(R.id.action_open_file_with);
 192             toHide.add(R.id.action_download_file);
 193             toHide.add(R.id.action_cancel_download);
 194             toHide.add(R.id.action_cancel_upload);
 195             toHide.add(R.id.action_sync_file);
 196             toHide.add(R.id.action_see_details);
 197             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 198                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 199                 toDisable.add(R.id.action_rename_file);
 200                 toDisable.add(R.id.action_remove_file);
 201
 202             }
 203
 204         } else {
 205             // contextual menu for regular files
 206
 207             // new design: 'download' and 'open with' won't be available anymore in context menu
 208             toHide.add(R.id.action_download_file);
 209             toHide.add(R.id.action_open_file_with);
 210
 211             if (targetFile.isDown()) {
 212                 toHide.add(R.id.action_cancel_download);
 213                 toHide.add(R.id.action_cancel_upload);
 214
 215             } else {
 216                 toHide.add(R.id.action_sync_file);
 217             }
 218             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 219                 toHide.add(R.id.action_cancel_upload);
 220                 toDisable.add(R.id.action_rename_file);
 221                 toDisable.add(R.id.action_remove_file);
 222
 223             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 224                 toHide.add(R.id.action_cancel_download);
 225                 toDisable.add(R.id.action_rename_file);
 226                 toDisable.add(R.id.action_remove_file);
 227
 228             } else {
 229                 toHide.add(R.id.action_cancel_download);
 230                 toHide.add(R.id.action_cancel_upload);
 231             }
 232         }
 233
 234         for (int i : toHide) {
 235             item = menu.findItem(i);
 236             if (item != null) {
 237                 item.setVisible(false);
 238                 item.setEnabled(false);
 239             }
 240         }
 241
 242         for (int i : toDisable) {
 243             item = menu.findItem(i);
 244             if (item != null) {
 245                 item.setEnabled(false);
 246             }
 247         }
 248     }
 249
 250
 251     /**
 252      * {@inhericDoc}
 253      */
 254     @Override
 255     public boolean onContextItemSelected (MenuItem item) {
 256         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 257         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 258         switch (item.getItemId()) {
 259             case R.id.action_rename_file: {
 260                 String fileName = mTargetFile.getFileName();
 261                 int extensionStart = mTargetFile.isDirectory() ? -1 : fileName.lastIndexOf(".");
 262                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 263                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 264                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 265                 return true;
 266             }
 267             case R.id.action_remove_file: {
 268                 int messageStringId = R.string.confirmation_remove_alert;
 269                 int posBtnStringId = R.string.confirmation_remove_remote;
 270                 int neuBtnStringId = -1;
 271                 if (mTargetFile.isDirectory()) {
 272                     messageStringId = R.string.confirmation_remove_folder_alert;
 273                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 274                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 275                 } else if (mTargetFile.isDown()) {
 276                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 277                     neuBtnStringId = R.string.confirmation_remove_local;
 278                 }
 279                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 280                         messageStringId,
 281                         new String[]{mTargetFile.getFileName()},
 282                         posBtnStringId,
 283                         neuBtnStringId,
 284                         R.string.common_cancel);
 285                 confDialog.setOnConfirmationListener(this);
 286                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 287                 return true;
 288             }
 289             case R.id.action_sync_file: {
 290                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 291                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 292                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 293                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 294                 return true;
 295             }
 296             case R.id.action_cancel_download: {
 297                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 298                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 299                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 300                     downloaderBinder.cancel(account, mTargetFile);
 301                     listDirectory();
 302                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 303                 }
 304                 return true;
 305             }
 306             case R.id.action_cancel_upload: {
 307                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 308                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 309                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 310                     uploaderBinder.cancel(account, mTargetFile);
 311                     listDirectory();
 312                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 313                 }
 314                 return true;
 315             }
 316             case R.id.action_see_details: {
 317                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 318                 return true;
 319             }
 320             default:
 321                 return super.onContextItemSelected(item);
 322         }
 323     }
 324
 325
 326     /**
 327      * Use this to query the {@link OCFile} that is currently
 328      * being displayed by this fragment
 329      * @return The currently viewed OCFile
 330      */
 331     public OCFile getCurrentFile(){
 332         return mFile;
 333     }
 334
 335     /**
 336      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 337      */
 338     public void listDirectory(){
 339         listDirectory(null);
 340     }
 341
 342     /**
 343      * Lists the given directory on the view. When the input parameter is null,
 344      * it will either refresh the last known directory. list the root
 345      * if there never was a directory.
 346      *
 347      * @param directory File to be listed
 348      */
 349     public void listDirectory(OCFile directory) {
 350         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 351         if (storageManager != null) {
 352
 353             // Check input parameters for null
 354             if(directory == null){
 355                 if(mFile != null){
 356                     directory = mFile;
 357                 } else {
 358                     directory = storageManager.getFileByPath("/");
 359                     if (directory == null) return; // no files, wait for sync
 360                 }
 361             }
 362
 363
 364             // If that's not a directory -> List its parent
 365             if(!directory.isDirectory()){
 366                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 367                 directory = storageManager.getFileById(directory.getParentId());
 368             }
 369
 370             mAdapter.swapDirectory(directory, storageManager);
 371             if (mFile == null || !mFile.equals(directory)) {
 372                 mList.setSelectionFromTop(0, 0);
 373             }
 374             mFile = directory;
 375
 376         }
 377     }
 378
 379
 380
 381     /**
 382      * Interface to implement by any Activity that includes some instance of FileListFragment
 383      *
 384      * @author David A. Velasco
 385      */
 386     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 387
 388         /**
 389          * Callback method invoked when a the user browsed into a different folder through the list of files
 390          *
 391          * @param file
 392          */
 393         public void onBrowsedDownTo(OCFile folder);
 394
 395         public void startDownloadForPreview(OCFile file);
 396
 397         public void startMediaPreview(OCFile file, int i, boolean b);
 398
 399         public void startImagePreview(OCFile file);
 400
 401         /**
 402          * Getter for the current DataStorageManager in the container activity
 403          */
 404         public DataStorageManager getStorageManager();
 405
 406
 407         /**
 408          * Callback method invoked when a the 'transfer state' of a file changes.
 409          *
 410          * This happens when a download or upload is started or ended for a file.
 411          *
 412          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 413          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 414          * won't provide the needed response before the method where this is called finishes.
 415          *
 416          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 417          *
 418          * @param file          OCFile which state changed.
 419          * @param downloading   Flag signaling if the file is now downloading.
 420          * @param uploading     Flag signaling if the file is now uploading.
 421          */
 422         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 423
 424     }
 425
 426
 427     @Override
 428     public void onDismiss(EditNameDialog dialog) {
 429         if (dialog.getResult()) {
 430             String newFilename = dialog.getNewFilename();
 431             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 432             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 433                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 434                                                                 newFilename,
 435                                                                 mContainerActivity.getStorageManager());
 436             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 437             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 438         }
 439     }
 440
 441
 442     @Override
 443     public void onConfirmation(String callerTag) {
 444         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 445             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 446                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 447                                                                     true,
 448                                                                     mContainerActivity.getStorageManager());
 449                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 450
 451                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 452             }
 453         }
 454     }
 455
 456     @Override
 457     public void onNeutral(String callerTag) {
 458         File f = null;
 459         if (mTargetFile.isDirectory()) {
 460             // TODO run in a secondary thread?
 461             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 462
 463         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 464             f.delete();
 465             mTargetFile.setStoragePath(null);
 466             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 467         }
 468         listDirectory();
 469         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 470     }
 471
 472     @Override
 473     public void onCancel(String callerTag) {
 474         Log_OC.d(TAG, "REMOVAL CANCELED");
 475     }
 476
 477
 478 }