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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   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
  22 import com.owncloud.android.AccountUtils;
  23 import com.owncloud.android.R;
  24 import com.owncloud.android.datamodel.DataStorageManager;
  25 import com.owncloud.android.datamodel.OCFile;
  26 import com.owncloud.android.files.services.FileDownloader;
  27 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  28 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  29 import com.owncloud.android.network.OwnCloudClientUtils;
  30 import com.owncloud.android.operations.OnRemoteOperationListener;
  31 import com.owncloud.android.operations.RemoteOperation;
  32 import com.owncloud.android.operations.RemoveFileOperation;
  33 import com.owncloud.android.operations.RenameFileOperation;
  34 import com.owncloud.android.ui.FragmentListView;
  35 import com.owncloud.android.ui.activity.FileDisplayActivity;
  36 import com.owncloud.android.ui.activity.TransferServiceGetter;
  37 import com.owncloud.android.ui.adapter.FileListListAdapter;
  38 import com.owncloud.android.ui.dialog.EditNameDialog;
  39 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  40 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  41
  42 import eu.alefzero.webdav.WebdavClient;
  43 import eu.alefzero.webdav.WebdavUtils;
  44
  45 import android.accounts.Account;
  46 import android.app.Activity;
  47 import android.content.ActivityNotFoundException;
  48 import android.content.Intent;
  49 import android.net.Uri;
  50 import android.os.Bundle;
  51 import android.os.Handler;
  52 import android.util.Log;
  53 import android.view.ContextMenu;
  54 import android.view.MenuInflater;
  55 import android.view.MenuItem;
  56 import android.view.View;
  57 import android.webkit.MimeTypeMap;
  58 import android.widget.AdapterView;
  59 import android.widget.Toast;
  60 import android.widget.AdapterView.AdapterContextMenuInfo;
  61
  62 /**
  63  * A Fragment that lists all files and folders in a given path.
  64  *
  65  * @author Bartek Przybylski
  66  *
  67  */
  68 public class OCFileListFragment extends FragmentListView implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  69     private static final String TAG = "FileListFragment";
  70     private static final String SAVED_LIST_POSITION = "LIST_POSITION";
  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     /**
  82      * {@inheritDoc}
  83      */
  84     @Override
  85     public void onAttach(Activity activity) {
  86         super.onAttach(activity);
  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         Log.i(TAG, "onActivityCreated() start");
 101
 102         super.onActivityCreated(savedInstanceState);
 103         mAdapter = new FileListListAdapter(mContainerActivity.getInitialDirectory(), mContainerActivity.getStorageManager(), getActivity(), mContainerActivity);
 104         setListAdapter(mAdapter);
 105
 106         if (savedInstanceState != null) {
 107             Log.i(TAG, "savedInstanceState is not null");
 108             int position = savedInstanceState.getInt(SAVED_LIST_POSITION);
 109             setReferencePosition(position);
 110         }
 111
 112         registerForContextMenu(getListView());
 113         getListView().setOnCreateContextMenuListener(this);
 114
 115         mHandler = new Handler();
 116
 117         Log.i(TAG, "onActivityCreated() stop");
 118     }
 119
 120
 121
 122     @Override
 123     public void onSaveInstanceState(Bundle savedInstanceState) {
 124         Log.i(TAG, "onSaveInstanceState() start");
 125
 126         savedInstanceState.putInt(SAVED_LIST_POSITION, getReferencePosition());
 127
 128         Log.i(TAG, "onSaveInstanceState() stop");
 129     }
 130
 131
 132     @Override
 133     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 134         OCFile file = (OCFile) mAdapter.getItem(position);
 135         if (file != null) {
 136             /// Click on a directory
 137             if (file.getMimetype().equals("DIR")) {
 138                 // just local updates
 139                 mFile = file;
 140                 listDirectory(file);
 141                 // any other updates are let to the container Activity
 142                 mContainerActivity.onDirectoryClick(file);
 143
 144             } else {    /// Click on a file
 145                 mContainerActivity.onFileClick(file);
 146             }
 147
 148         } else {
 149             Log.d(TAG, "Null object in ListAdapter!!");
 150         }
 151
 152     }
 153
 154     /**
 155      * {@inheritDoc}
 156      */
 157     @Override
 158     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 159         super.onCreateContextMenu(menu, v, menuInfo);
 160         MenuInflater inflater = getActivity().getMenuInflater();
 161         inflater.inflate(R.menu.file_context_menu, menu);
 162         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 163         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 164         MenuItem item = null;
 165         int[] ids = null;
 166         if (targetFile.isDirectory()) {
 167             int[] theIds = {R.id.open_file_item, R.id.download_file_item, R.id.cancel_download_item, R.id.cancel_upload_item};
 168             ids = theIds;
 169
 170         } else if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 171             int[] theIds = {R.id.open_file_item, R.id.download_file_item, R.id.cancel_upload_item};
 172             ids = theIds;
 173
 174         } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 175             int[] theIds = {R.id.open_file_item, R.id.download_file_item, R.id.cancel_download_item};
 176             ids = theIds;
 177
 178         } else if ( targetFile.isDown()) {
 179             int[] theIds = {R.id.cancel_download_item, R.id.cancel_upload_item};
 180             ids = theIds;
 181
 182         } else {
 183             int[] theIds = {R.id.open_file_item, R.id.cancel_download_item, R.id.cancel_upload_item};
 184             ids = theIds;
 185         }
 186
 187         for (int i=0; i < ids.length; i++) {
 188             item = menu.findItem(ids[i]);
 189             if (item != null) {
 190                 item.setVisible(false);
 191                 item.setEnabled(false);
 192             }
 193         }
 194     }
 195
 196
 197     /**
 198      * {@inhericDoc}
 199      */
 200     @Override
 201     public boolean onContextItemSelected (MenuItem item) {
 202         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 203         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 204         switch (item.getItemId()) {
 205             case R.id.rename_file_item: {
 206                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), mTargetFile.getFileName(), this);
 207                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 208                 return true;
 209             }
 210             case R.id.remove_file_item: {
 211                 int messageStringId = R.string.confirmation_remove_alert;
 212                 int posBtnStringId = R.string.confirmation_remove_remote;
 213                 int neuBtnStringId = -1;
 214                 if (mTargetFile.isDirectory()) {
 215                     messageStringId = R.string.confirmation_remove_folder_alert;
 216                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 217                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 218                 } else if (mTargetFile.isDown()) {
 219                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 220                     neuBtnStringId = R.string.confirmation_remove_local;
 221                 }
 222                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 223                         messageStringId,
 224                         new String[]{mTargetFile.getFileName()},
 225                         posBtnStringId,
 226                         neuBtnStringId,
 227                         R.string.common_cancel);
 228                 confDialog.setOnConfirmationListener(this);
 229                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 230                 return true;
 231             }
 232             case R.id.open_file_item: {
 233                 String storagePath = mTargetFile.getStoragePath();
 234                 String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 235                 try {
 236                     Intent i = new Intent(Intent.ACTION_VIEW);
 237                     i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mTargetFile.getMimetype());
 238                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 239                     startActivity(i);
 240
 241                 } catch (Throwable t) {
 242                     Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mTargetFile.getMimetype());
 243                     boolean toastIt = true;
 244                     String mimeType = "";
 245                     try {
 246                         Intent i = new Intent(Intent.ACTION_VIEW);
 247                         mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 248                         if (mimeType == null || !mimeType.equals(mTargetFile.getMimetype())) {
 249                             if (mimeType != null) {
 250                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 251                             } else {
 252                                 // desperate try
 253                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), "*/*");
 254                             }
 255                             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 256                             startActivity(i);
 257                             toastIt = false;
 258                         }
 259
 260                     } catch (IndexOutOfBoundsException e) {
 261                         Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 262
 263                     } catch (ActivityNotFoundException e) {
 264                         Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 265
 266                     } catch (Throwable th) {
 267                         Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 268
 269                     } finally {
 270                         if (toastIt) {
 271                             Toast.makeText(getActivity(), "There is no application to handle file " + mTargetFile.getFileName(), Toast.LENGTH_SHORT).show();
 272                         }
 273                     }
 274
 275                 }
 276                 return true;
 277             }
 278             case R.id.download_file_item: {
 279                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 280                 Intent i = new Intent(getActivity(), FileDownloader.class);
 281                 i.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
 282                 i.putExtra(FileDownloader.EXTRA_FILE, mTargetFile);
 283                 getActivity().startService(i);
 284                 listDirectory();
 285                 mContainerActivity.onTransferStateChanged(mTargetFile, true, false);
 286                 return true;
 287             }
 288             case R.id.cancel_download_item: {
 289                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 290                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 291                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 292                     downloaderBinder.cancel(account, mTargetFile);
 293                     listDirectory();
 294                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 295                 }
 296                 return true;
 297             }
 298             case R.id.cancel_upload_item: {
 299                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 300                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 301                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 302                     uploaderBinder.cancel(account, mTargetFile);
 303                     listDirectory();
 304                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 305                 }
 306                 return true;
 307             }
 308             default:
 309                 return super.onContextItemSelected(item);
 310         }
 311     }
 312
 313
 314     /**
 315      * Call this, when the user presses the up button
 316      */
 317     public void onNavigateUp() {
 318         OCFile parentDir = null;
 319
 320         if(mFile != null){
 321             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 322             parentDir = storageManager.getFileById(mFile.getParentId());
 323             mFile = parentDir;
 324         }
 325         listDirectory(parentDir);
 326     }
 327
 328     /**
 329      * Use this to query the {@link OCFile} that is currently
 330      * being displayed by this fragment
 331      * @return The currently viewed OCFile
 332      */
 333     public OCFile getCurrentFile(){
 334         return mFile;
 335     }
 336
 337     /**
 338      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 339      */
 340     public void listDirectory(){
 341         listDirectory(null);
 342     }
 343
 344     /**
 345      * Lists the given directory on the view. When the input parameter is null,
 346      * it will either refresh the last known directory, or list the root
 347      * if there never was a directory.
 348      *
 349      * @param directory File to be listed
 350      */
 351     public void listDirectory(OCFile directory) {
 352         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 353         if (storageManager != null) {
 354
 355             // Check input parameters for null
 356             if(directory == null){
 357                 if(mFile != null){
 358                     directory = mFile;
 359                 } else {
 360                     directory = storageManager.getFileByPath("/");
 361                     if (directory == null) return; // no files, wait for sync
 362                 }
 363             }
 364
 365
 366             // If that's not a directory -> List its parent
 367             if(!directory.isDirectory()){
 368                 Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 369                 directory = storageManager.getFileById(directory.getParentId());
 370             }
 371
 372             mAdapter.swapDirectory(directory, storageManager);
 373             if (mFile == null || !mFile.equals(directory)) {
 374                 mList.setSelectionFromTop(0, 0);
 375             }
 376             mFile = directory;
 377         }
 378     }
 379
 380
 381
 382     /**
 383      * Interface to implement by any Activity that includes some instance of FileListFragment
 384      *
 385      * @author David A. Velasco
 386      */
 387     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 388
 389         /**
 390          * Callback method invoked when a directory is clicked by the user on the files list
 391          *
 392          * @param file
 393          */
 394         public void onDirectoryClick(OCFile file);
 395
 396         /**
 397          * Callback method invoked when a file (non directory) is clicked by the user on the files list
 398          *
 399          * @param file
 400          */
 401         public void onFileClick(OCFile file);
 402
 403         /**
 404          * Getter for the current DataStorageManager in the container activity
 405          */
 406         public DataStorageManager getStorageManager();
 407
 408
 409         /**
 410          * Callback method invoked when the parent activity is fully created to get the directory to list firstly.
 411          *
 412          * @return  Directory to list firstly. Can be NULL.
 413          */
 414         public OCFile getInitialDirectory();
 415
 416
 417         /**
 418          * Callback method invoked when a the 'transfer state' of a file changes.
 419          *
 420          * This happens when a download or upload is started or ended for a file.
 421          *
 422          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 423          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 424          * won't provide the needed response before the method where this is called finishes.
 425          *
 426          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 427          *
 428          * @param file          OCFile which state changed.
 429          * @param downloading   Flag signaling if the file is now downloading.
 430          * @param uploading     Flag signaling if the file is now uploading.
 431          */
 432         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 433
 434     }
 435
 436
 437     @Override
 438     public void onDismiss(EditNameDialog dialog) {
 439         if (dialog.getResult()) {
 440             String newFilename = dialog.getNewFilename();
 441             Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 442             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 443                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 444                                                                 newFilename,
 445                                                                 mContainerActivity.getStorageManager());
 446             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 447             operation.execute(wc, mContainerActivity, mHandler);
 448             getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 449         }
 450     }
 451
 452
 453     @Override
 454     public void onConfirmation(String callerTag) {
 455         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 456             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 457                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 458                                                                     true,
 459                                                                     mContainerActivity.getStorageManager());
 460                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 461                 operation.execute(wc, mContainerActivity, mHandler);
 462
 463                 getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 464             }
 465         }
 466     }
 467
 468     @Override
 469     public void onNeutral(String callerTag) {
 470         File f = null;
 471         if (mTargetFile.isDirectory()) {
 472             // TODO run in a secondary thread?
 473             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 474
 475         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 476             f.delete();
 477             mTargetFile.setStoragePath(null);
 478             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 479         }
 480         listDirectory();
 481         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 482     }
 483
 484     @Override
 485     public void onCancel(String callerTag) {
 486         Log.d(TAG, "REMOVAL CANCELED");
 487     }
 488
 489
 490 }