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