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 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(mContainerActivity.getInitialDirectory(), mContainerActivity.getStorageManager(), 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                 mFile = file;
 128                 listDirectory(file);
 129                 // then, notify parent activity to let it update its state and view, and other fragments
 130                 mContainerActivity.onBrowsedDownTo(file);
 131
 132             } else { /// Click on a file
 133                 if (PreviewImageFragment.canBePreviewed(file)) {
 134                     // preview image - it handles the download, if needed
 135                     mContainerActivity.startImagePreview(file);
 136
 137                 } else if (file.isDown()) {
 138                     if (PreviewMediaFragment.canBePreviewed(file)) {
 139                         // media preview
 140                         mContainerActivity.startMediaPreview(file, 0, true);
 141                     } else {
 142                         // open with
 143                         mContainerActivity.openFile(file);
 144                     }
 145
 146                 } else {
 147                     // automatic download, preview on finish
 148                     mContainerActivity.startDownloadForPreview(file);
 149                 }
 150
 151             }
 152
 153         } else {
 154             Log_OC.d(TAG, "Null object in ListAdapter!!");
 155         }
 156
 157     }
 158
 159     /**
 160      * {@inheritDoc}
 161      */
 162     @Override
 163     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 164         super.onCreateContextMenu(menu, v, menuInfo);
 165         MenuInflater inflater = getActivity().getMenuInflater();
 166         inflater.inflate(R.menu.file_actions_menu, menu);
 167         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 168         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 169         List<Integer> toHide = new ArrayList<Integer>();
 170         List<Integer> toDisable = new ArrayList<Integer>();
 171
 172         MenuItem item = null;
 173         if (targetFile.isDirectory()) {
 174             // contextual menu for folders
 175             toHide.add(R.id.action_open_file_with);
 176             toHide.add(R.id.action_download_file);
 177             toHide.add(R.id.action_cancel_download);
 178             toHide.add(R.id.action_cancel_upload);
 179             toHide.add(R.id.action_sync_file);
 180             toHide.add(R.id.action_see_details);
 181             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 182                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 183                 toDisable.add(R.id.action_rename_file);
 184                 toDisable.add(R.id.action_remove_file);
 185
 186             }
 187
 188         } else {
 189             // contextual menu for regular files
 190
 191             // new design: 'download' and 'open with' won't be available anymore in context menu
 192             toHide.add(R.id.action_download_file);
 193             toHide.add(R.id.action_open_file_with);
 194
 195             if (targetFile.isDown()) {
 196                 toHide.add(R.id.action_cancel_download);
 197                 toHide.add(R.id.action_cancel_upload);
 198
 199             } else {
 200                 toHide.add(R.id.action_sync_file);
 201             }
 202             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 203                 toHide.add(R.id.action_cancel_upload);
 204                 toDisable.add(R.id.action_rename_file);
 205                 toDisable.add(R.id.action_remove_file);
 206
 207             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 208                 toHide.add(R.id.action_cancel_download);
 209                 toDisable.add(R.id.action_rename_file);
 210                 toDisable.add(R.id.action_remove_file);
 211
 212             } else {
 213                 toHide.add(R.id.action_cancel_download);
 214                 toHide.add(R.id.action_cancel_upload);
 215             }
 216         }
 217
 218         for (int i : toHide) {
 219             item = menu.findItem(i);
 220             if (item != null) {
 221                 item.setVisible(false);
 222                 item.setEnabled(false);
 223             }
 224         }
 225
 226         for (int i : toDisable) {
 227             item = menu.findItem(i);
 228             if (item != null) {
 229                 item.setEnabled(false);
 230             }
 231         }
 232     }
 233
 234
 235     /**
 236      * {@inhericDoc}
 237      */
 238     @Override
 239     public boolean onContextItemSelected (MenuItem item) {
 240         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 241         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 242         switch (item.getItemId()) {
 243             case R.id.action_rename_file: {
 244                 String fileName = mTargetFile.getFileName();
 245                 int extensionStart = mTargetFile.isDirectory() ? -1 : fileName.lastIndexOf(".");
 246                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 247                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 248                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 249                 return true;
 250             }
 251             case R.id.action_remove_file: {
 252                 int messageStringId = R.string.confirmation_remove_alert;
 253                 int posBtnStringId = R.string.confirmation_remove_remote;
 254                 int neuBtnStringId = -1;
 255                 if (mTargetFile.isDirectory()) {
 256                     messageStringId = R.string.confirmation_remove_folder_alert;
 257                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 258                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 259                 } else if (mTargetFile.isDown()) {
 260                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 261                     neuBtnStringId = R.string.confirmation_remove_local;
 262                 }
 263                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 264                         messageStringId,
 265                         new String[]{mTargetFile.getFileName()},
 266                         posBtnStringId,
 267                         neuBtnStringId,
 268                         R.string.common_cancel);
 269                 confDialog.setOnConfirmationListener(this);
 270                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 271                 return true;
 272             }
 273             case R.id.action_sync_file: {
 274                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 275                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 276                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 277                 getSherlockActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 278                 return true;
 279             }
 280             case R.id.action_cancel_download: {
 281                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 282                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 283                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 284                     downloaderBinder.cancel(account, mTargetFile);
 285                     listDirectory();
 286                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 287                 }
 288                 return true;
 289             }
 290             case R.id.action_cancel_upload: {
 291                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 292                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 293                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 294                     uploaderBinder.cancel(account, mTargetFile);
 295                     listDirectory();
 296                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 297                 }
 298                 return true;
 299             }
 300             case R.id.action_see_details: {
 301                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 302                 return true;
 303             }
 304             default:
 305                 return super.onContextItemSelected(item);
 306         }
 307     }
 308
 309
 310     /**
 311      * Use this to query the {@link OCFile} that is currently
 312      * being displayed by this fragment
 313      * @return The currently viewed OCFile
 314      */
 315     public OCFile getCurrentFile(){
 316         return mFile;
 317     }
 318
 319     /**
 320      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 321      */
 322     public void listDirectory(){
 323         listDirectory(null);
 324     }
 325
 326     /**
 327      * Lists the given directory on the view. When the input parameter is null,
 328      * it will either refresh the last known directory. list the root
 329      * if there never was a directory.
 330      *
 331      * @param directory File to be listed
 332      */
 333     public void listDirectory(OCFile directory) {
 334         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 335         if (storageManager != null) {
 336
 337             // Check input parameters for null
 338             if(directory == null){
 339                 if(mFile != null){
 340                     directory = mFile;
 341                 } else {
 342                     directory = storageManager.getFileByPath("/");
 343                     if (directory == null) return; // no files, wait for sync
 344                 }
 345             }
 346
 347
 348             // If that's not a directory -> List its parent
 349             if(!directory.isDirectory()){
 350                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 351                 directory = storageManager.getFileById(directory.getParentId());
 352             }
 353
 354             mAdapter.swapDirectory(directory, storageManager);
 355             if (mFile == null || !mFile.equals(directory)) {
 356                 mList.setSelectionFromTop(0, 0);
 357             }
 358             mFile = directory;
 359         }
 360     }
 361
 362
 363
 364     /**
 365      * Interface to implement by any Activity that includes some instance of FileListFragment
 366      *
 367      * @author David A. Velasco
 368      */
 369     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 370
 371         /**
 372          * Callback method invoked when a the user browsed into a different folder through the list of files
 373          *
 374          * @param file
 375          */
 376         public void onBrowsedDownTo(OCFile folder);
 377
 378         public void startDownloadForPreview(OCFile file);
 379
 380         public void startMediaPreview(OCFile file, int i, boolean b);
 381
 382         public void startImagePreview(OCFile file);
 383
 384         /**
 385          * Getter for the current DataStorageManager in the container activity
 386          */
 387         public DataStorageManager getStorageManager();
 388
 389
 390         /**
 391          * Callback method invoked when the parent activity is fully created to get the directory to list firstly.
 392          *
 393          * @return  Directory to list firstly. Can be NULL.
 394          */
 395         public OCFile getInitialDirectory();
 396
 397
 398         /**
 399          * Callback method invoked when a the 'transfer state' of a file changes.
 400          *
 401          * This happens when a download or upload is started or ended for a file.
 402          *
 403          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 404          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 405          * won't provide the needed response before the method where this is called finishes.
 406          *
 407          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 408          *
 409          * @param file          OCFile which state changed.
 410          * @param downloading   Flag signaling if the file is now downloading.
 411          * @param uploading     Flag signaling if the file is now uploading.
 412          */
 413         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 414
 415     }
 416
 417
 418     @Override
 419     public void onDismiss(EditNameDialog dialog) {
 420         if (dialog.getResult()) {
 421             String newFilename = dialog.getNewFilename();
 422             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 423             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 424                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 425                                                                 newFilename,
 426                                                                 mContainerActivity.getStorageManager());
 427             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 428             getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 429         }
 430     }
 431
 432
 433     @Override
 434     public void onConfirmation(String callerTag) {
 435         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 436             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 437                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 438                                                                     true,
 439                                                                     mContainerActivity.getStorageManager());
 440                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 441
 442                 getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 443             }
 444         }
 445     }
 446
 447     @Override
 448     public void onNeutral(String callerTag) {
 449         File f = null;
 450         if (mTargetFile.isDirectory()) {
 451             // TODO run in a secondary thread?
 452             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 453
 454         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 455             f.delete();
 456             mTargetFile.setStoragePath(null);
 457             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 458         }
 459         listDirectory();
 460         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 461     }
 462
 463     @Override
 464     public void onCancel(String callerTag) {
 465         Log_OC.d(TAG, "REMOVAL CANCELED");
 466     }
 467
 468
 469 }