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 as published by
   7  *   the Free Software Foundation, either version 2 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19 package com.owncloud.android.ui.fragment;
  20
  21 import java.io.File;
  22 import java.util.ArrayList;
  23 import java.util.List;
  24
  25 import com.owncloud.android.AccountUtils;
  26 import com.owncloud.android.Log_OC;
  27 import com.owncloud.android.R;
  28 import com.owncloud.android.datamodel.DataStorageManager;
  29 import com.owncloud.android.datamodel.OCFile;
  30 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  31 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  32 import com.owncloud.android.network.OwnCloudClientUtils;
  33 import com.owncloud.android.operations.OnRemoteOperationListener;
  34 import com.owncloud.android.operations.RemoteOperation;
  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.FragmentListView;
  39 import com.owncloud.android.ui.activity.FileDisplayActivity;
  40 import com.owncloud.android.ui.activity.TransferServiceGetter;
  41 import com.owncloud.android.ui.adapter.FileListListAdapter;
  42 import com.owncloud.android.ui.dialog.EditNameDialog;
  43 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  44 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  45
  46 import eu.alefzero.webdav.WebdavClient;
  47 import eu.alefzero.webdav.WebdavUtils;
  48
  49 import android.accounts.Account;
  50 import android.app.Activity;
  51 import android.content.ActivityNotFoundException;
  52 import android.content.Intent;
  53 import android.net.Uri;
  54 import android.os.Bundle;
  55 import android.os.Handler;
  56 import android.support.v4.app.DialogFragment;
  57 import android.util.Log;
  58 import android.view.ContextMenu;
  59 import android.view.MenuInflater;
  60 import android.view.MenuItem;
  61 import android.view.View;
  62 import android.webkit.MimeTypeMap;
  63 import android.widget.AdapterView;
  64 import android.widget.Toast;
  65 import android.widget.AdapterView.AdapterContextMenuInfo;
  66
  67 /**
  68  * A Fragment that lists all files and folders in a given path.
  69  *
  70  * @author Bartek Przybylski
  71  *
  72  */
  73 public class OCFileListFragment extends FragmentListView implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  74     private static final String TAG = "FileListFragment";
  75     private static final String SAVED_LIST_POSITION = "LIST_POSITION";
  76
  77     private OCFileListFragment.ContainerActivity mContainerActivity;
  78
  79     private OCFile mFile = null;
  80     private FileListListAdapter mAdapter;
  81
  82     private Handler mHandler;
  83     private OCFile mTargetFile;
  84
  85     private DialogFragment mCurrentDialog;
  86
  87     /**
  88      * {@inheritDoc}
  89      */
  90     @Override
  91     public void onAttach(Activity activity) {
  92         super.onAttach(activity);
  93         try {
  94             mContainerActivity = (ContainerActivity) activity;
  95         } catch (ClassCastException e) {
  96             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  97         }
  98     }
  99
 100
 101     /**
 102      * {@inheritDoc}
 103      */
 104     @Override
 105     public void onActivityCreated(Bundle savedInstanceState) {
 106         Log_OC.i(TAG, "onActivityCreated() start");
 107
 108         super.onActivityCreated(savedInstanceState);
 109         mAdapter = new FileListListAdapter(mContainerActivity.getInitialDirectory(), mContainerActivity.getStorageManager(), getActivity(), mContainerActivity);
 110         setListAdapter(mAdapter);
 111
 112         if (savedInstanceState != null) {
 113             Log_OC.i(TAG, "savedInstanceState is not null");
 114             int position = savedInstanceState.getInt(SAVED_LIST_POSITION);
 115             setReferencePosition(position);
 116         }
 117
 118         registerForContextMenu(getListView());
 119         getListView().setOnCreateContextMenuListener(this);
 120
 121         mHandler = new Handler();
 122
 123         Log_OC.i(TAG, "onActivityCreated() stop");
 124     }
 125
 126
 127
 128     @Override
 129     public void onSaveInstanceState(Bundle savedInstanceState) {
 130         Log_OC.i(TAG, "onSaveInstanceState() start");
 131
 132         savedInstanceState.putInt(SAVED_LIST_POSITION, getReferencePosition());
 133
 134         Log_OC.i(TAG, "onSaveInstanceState() stop");
 135     }
 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             /// Click on a directory
 143             if (file.getMimetype().equals("DIR")) {
 144                 // just local updates
 145                 mFile = file;
 146                 listDirectory(file);
 147                 // any other updates are let to the container Activity
 148                 mContainerActivity.onDirectoryClick(file);
 149
 150             } else {    /// Click on a file
 151                 mContainerActivity.onFileClick(file);
 152             }
 153
 154         } else {
 155             Log_OC.d(TAG, "Null object in ListAdapter!!");
 156         }
 157
 158     }
 159
 160     /**
 161      * {@inheritDoc}
 162      */
 163     @Override
 164     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 165         super.onCreateContextMenu(menu, v, menuInfo);
 166         MenuInflater inflater = getActivity().getMenuInflater();
 167         inflater.inflate(R.menu.file_context_menu, menu);
 168         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 169         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 170         List<Integer> toHide = new ArrayList<Integer>();
 171         List<Integer> toDisable = new ArrayList<Integer>();
 172
 173         MenuItem item = null;
 174         if (targetFile.isDirectory()) {
 175             // contextual menu for folders
 176             toHide.add(R.id.open_file_item);
 177             toHide.add(R.id.download_file_item);
 178             toHide.add(R.id.cancel_download_item);
 179             toHide.add(R.id.cancel_upload_item);
 180             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 181                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 182                 toDisable.add(R.id.rename_file_item);
 183                 toDisable.add(R.id.remove_file_item);
 184
 185             }
 186
 187         } else {
 188             // contextual menu for regular files
 189             if (targetFile.isDown()) {
 190                 toHide.add(R.id.cancel_download_item);
 191                 toHide.add(R.id.cancel_upload_item);
 192                 item = menu.findItem(R.id.download_file_item);
 193                 if (item != null) {
 194                     item.setTitle(R.string.filedetails_sync_file);
 195                 }
 196             } else {
 197                 toHide.add(R.id.open_file_item);
 198             }
 199             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 200                 toHide.add(R.id.download_file_item);
 201                 toHide.add(R.id.cancel_upload_item);
 202                 toDisable.add(R.id.open_file_item);
 203                 toDisable.add(R.id.rename_file_item);
 204                 toDisable.add(R.id.remove_file_item);
 205
 206             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 207                 toHide.add(R.id.download_file_item);
 208                 toHide.add(R.id.cancel_download_item);
 209                 toDisable.add(R.id.open_file_item);
 210                 toDisable.add(R.id.rename_file_item);
 211                 toDisable.add(R.id.remove_file_item);
 212
 213             } else {
 214                 toHide.add(R.id.cancel_download_item);
 215                 toHide.add(R.id.cancel_upload_item);
 216             }
 217         }
 218
 219         for (int i : toHide) {
 220             item = menu.findItem(i);
 221             if (item != null) {
 222                 item.setVisible(false);
 223                 item.setEnabled(false);
 224             }
 225         }
 226
 227         for (int i : toDisable) {
 228             item = menu.findItem(i);
 229             if (item != null) {
 230                 item.setEnabled(false);
 231             }
 232         }
 233     }
 234
 235
 236     /**
 237      * {@inhericDoc}
 238      */
 239     @Override
 240     public boolean onContextItemSelected (MenuItem item) {
 241         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 242         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 243         switch (item.getItemId()) {
 244             case R.id.rename_file_item: {
 245                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), mTargetFile.getFileName(), this);
 246                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 247                 return true;
 248             }
 249             case R.id.remove_file_item: {
 250                 int messageStringId = R.string.confirmation_remove_alert;
 251                 int posBtnStringId = R.string.confirmation_remove_remote;
 252                 int neuBtnStringId = -1;
 253                 if (mTargetFile.isDirectory()) {
 254                     messageStringId = R.string.confirmation_remove_folder_alert;
 255                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 256                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 257                 } else if (mTargetFile.isDown()) {
 258                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 259                     neuBtnStringId = R.string.confirmation_remove_local;
 260                 }
 261                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 262                         messageStringId,
 263                         new String[]{mTargetFile.getFileName()},
 264                         posBtnStringId,
 265                         neuBtnStringId,
 266                         R.string.common_cancel);
 267                 confDialog.setOnConfirmationListener(this);
 268                 mCurrentDialog = confDialog;
 269                 mCurrentDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 270                 return true;
 271             }
 272             case R.id.open_file_item: {
 273                 String storagePath = mTargetFile.getStoragePath();
 274                 String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 275                 try {
 276                     Intent i = new Intent(Intent.ACTION_VIEW);
 277                     i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mTargetFile.getMimetype());
 278                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 279                     startActivity(i);
 280
 281                 } catch (Throwable t) {
 282                     Log_OC.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mTargetFile.getMimetype());
 283                     boolean toastIt = true;
 284                     String mimeType = "";
 285                     try {
 286                         Intent i = new Intent(Intent.ACTION_VIEW);
 287                         mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 288                         if (mimeType == null || !mimeType.equals(mTargetFile.getMimetype())) {
 289                             if (mimeType != null) {
 290                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 291                             } else {
 292                                 // desperate try
 293                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), "*/*");
 294                             }
 295                             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 296                             startActivity(i);
 297                             toastIt = false;
 298                         }
 299
 300                     } catch (IndexOutOfBoundsException e) {
 301                         Log_OC.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 302
 303                     } catch (ActivityNotFoundException e) {
 304                         Log_OC.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 305
 306                     } catch (Throwable th) {
 307                         Log_OC.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 308
 309                     } finally {
 310                         if (toastIt) {
 311                             Toast.makeText(getActivity(), "There is no application to handle file " + mTargetFile.getFileName(), Toast.LENGTH_SHORT).show();
 312                         }
 313                     }
 314
 315                 }
 316                 return true;
 317             }
 318             case R.id.download_file_item: {
 319                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 320                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 321                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(account, getSherlockActivity().getApplicationContext());
 322                 operation.execute(wc, mContainerActivity, mHandler);
 323                 getSherlockActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 324                 return true;
 325             }
 326             case R.id.cancel_download_item: {
 327                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 328                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 329                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 330                     downloaderBinder.cancel(account, mTargetFile);
 331                     listDirectory();
 332                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 333                 }
 334                 return true;
 335             }
 336             case R.id.cancel_upload_item: {
 337                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 338                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 339                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 340                     uploaderBinder.cancel(account, mTargetFile);
 341                     listDirectory();
 342                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 343                 }
 344                 return true;
 345             }
 346             default:
 347                 return super.onContextItemSelected(item);
 348         }
 349     }
 350
 351
 352     /**
 353      * Call this, when the user presses the up button
 354      */
 355     public void onNavigateUp() {
 356         OCFile parentDir = null;
 357
 358         if(mFile != null){
 359             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 360             parentDir = storageManager.getFileById(mFile.getParentId());
 361             mFile = parentDir;
 362         }
 363         listDirectory(parentDir);
 364     }
 365
 366     /**
 367      * Use this to query the {@link OCFile} that is currently
 368      * being displayed by this fragment
 369      * @return The currently viewed OCFile
 370      */
 371     public OCFile getCurrentFile(){
 372         return mFile;
 373     }
 374
 375     /**
 376      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 377      */
 378     public void listDirectory(){
 379         listDirectory(null);
 380     }
 381
 382     /**
 383      * Lists the given directory on the view. When the input parameter is null,
 384      * it will either refresh the last known directory, or list the root
 385      * if there never was a directory.
 386      *
 387      * @param directory File to be listed
 388      */
 389     public void listDirectory(OCFile directory) {
 390         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 391         if (storageManager != null) {
 392
 393             // Check input parameters for null
 394             if(directory == null){
 395                 if(mFile != null){
 396                     directory = mFile;
 397                 } else {
 398                     directory = storageManager.getFileByPath("/");
 399                     if (directory == null) return; // no files, wait for sync
 400                 }
 401             }
 402
 403
 404             // If that's not a directory -> List its parent
 405             if(!directory.isDirectory()){
 406                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 407                 directory = storageManager.getFileById(directory.getParentId());
 408             }
 409
 410             mAdapter.swapDirectory(directory, storageManager);
 411             if (mFile == null || !mFile.equals(directory)) {
 412                 mList.setSelectionFromTop(0, 0);
 413             }
 414             mFile = directory;
 415         }
 416     }
 417
 418
 419
 420     /**
 421      * Interface to implement by any Activity that includes some instance of FileListFragment
 422      *
 423      * @author David A. Velasco
 424      */
 425     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 426
 427         /**
 428          * Callback method invoked when a directory is clicked by the user on the files list
 429          *
 430          * @param file
 431          */
 432         public void onDirectoryClick(OCFile file);
 433
 434         /**
 435          * Callback method invoked when a file (non directory) is clicked by the user on the files list
 436          *
 437          * @param file
 438          */
 439         public void onFileClick(OCFile file);
 440
 441         /**
 442          * Getter for the current DataStorageManager in the container activity
 443          */
 444         public DataStorageManager getStorageManager();
 445
 446
 447         /**
 448          * Callback method invoked when the parent activity is fully created to get the directory to list firstly.
 449          *
 450          * @return  Directory to list firstly. Can be NULL.
 451          */
 452         public OCFile getInitialDirectory();
 453
 454
 455         /**
 456          * Callback method invoked when a the 'transfer state' of a file changes.
 457          *
 458          * This happens when a download or upload is started or ended for a file.
 459          *
 460          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 461          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 462          * won't provide the needed response before the method where this is called finishes.
 463          *
 464          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 465          *
 466          * @param file          OCFile which state changed.
 467          * @param downloading   Flag signaling if the file is now downloading.
 468          * @param uploading     Flag signaling if the file is now uploading.
 469          */
 470         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 471
 472     }
 473
 474
 475     @Override
 476     public void onDismiss(EditNameDialog dialog) {
 477         if (dialog.getResult()) {
 478             String newFilename = dialog.getNewFilename();
 479             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 480             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 481                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 482                                                                 newFilename,
 483                                                                 mContainerActivity.getStorageManager());
 484             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 485             operation.execute(wc, mContainerActivity, mHandler);
 486             getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 487         }
 488     }
 489
 490
 491     @Override
 492     public void onConfirmation(String callerTag) {
 493         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 494             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 495                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 496                                                                     true,
 497                                                                     mContainerActivity.getStorageManager());
 498                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 499                 operation.execute(wc, mContainerActivity, mHandler);
 500
 501                 getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 502             }
 503             if (mCurrentDialog != null) {
 504                 mCurrentDialog.dismiss();
 505                 mCurrentDialog = null;
 506             }
 507         }
 508     }
 509
 510     @Override
 511     public void onNeutral(String callerTag) {
 512         File f = null;
 513         if (mTargetFile.isDirectory()) {
 514             // TODO run in a secondary thread?
 515             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 516
 517         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 518             f.delete();
 519             mTargetFile.setStoragePath(null);
 520             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 521         }
 522         if (mCurrentDialog != null) {
 523             mCurrentDialog.dismiss();
 524             mCurrentDialog = null;
 525         }
 526         listDirectory();
 527         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 528     }
 529
 530     @Override
 531     public void onCancel(String callerTag) {
 532         Log_OC.d(TAG, "REMOVAL CANCELED");
 533         if (mCurrentDialog != null) {
 534             mCurrentDialog.dismiss();
 535             mCurrentDialog = null;
 536         }
 537     }
 538
 539
 540 }