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