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.network.OwnCloudClientUtils;
  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.FragmentListView;
  38 import com.owncloud.android.ui.activity.FileDisplayActivity;
  39 import com.owncloud.android.ui.activity.TransferServiceGetter;
  40 import com.owncloud.android.ui.adapter.FileListListAdapter;
  41 import com.owncloud.android.ui.dialog.EditNameDialog;
  42 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  43 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  44
  45 import eu.alefzero.webdav.WebdavClient;
  46 import eu.alefzero.webdav.WebdavUtils;
  47
  48 import android.accounts.Account;
  49 import android.app.Activity;
  50 import android.content.ActivityNotFoundException;
  51 import android.content.Intent;
  52 import android.net.Uri;
  53 import android.os.Bundle;
  54 import android.os.Handler;
  55 import android.support.v4.app.DialogFragment;
  56 import android.util.Log;
  57 import android.view.ContextMenu;
  58 import android.view.MenuInflater;
  59 import android.view.MenuItem;
  60 import android.view.View;
  61 import android.webkit.MimeTypeMap;
  62 import android.widget.AdapterView;
  63 import android.widget.Toast;
  64 import android.widget.AdapterView.AdapterContextMenuInfo;
  65
  66 /**
  67  * A Fragment that lists all files and folders in a given path.
  68  *
  69  * @author Bartek Przybylski
  70  *
  71  */
  72 public class OCFileListFragment extends FragmentListView implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  73     private static final String TAG = "FileListFragment";
  74     private static final String SAVED_LIST_POSITION = "LIST_POSITION";
  75
  76     private OCFileListFragment.ContainerActivity mContainerActivity;
  77
  78     private OCFile mFile = null;
  79     private FileListListAdapter mAdapter;
  80
  81     private Handler mHandler;
  82     private OCFile mTargetFile;
  83
  84     private DialogFragment mCurrentDialog;
  85
  86     /**
  87      * {@inheritDoc}
  88      */
  89     @Override
  90     public void onAttach(Activity activity) {
  91         super.onAttach(activity);
  92         try {
  93             mContainerActivity = (ContainerActivity) activity;
  94         } catch (ClassCastException e) {
  95             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  96         }
  97     }
  98
  99
 100     /**
 101      * {@inheritDoc}
 102      */
 103     @Override
 104     public void onActivityCreated(Bundle savedInstanceState) {
 105         Log.i(TAG, "onActivityCreated() start");
 106
 107         super.onActivityCreated(savedInstanceState);
 108         mAdapter = new FileListListAdapter(mContainerActivity.getInitialDirectory(), mContainerActivity.getStorageManager(), getActivity(), mContainerActivity);
 109         setListAdapter(mAdapter);
 110
 111         if (savedInstanceState != null) {
 112             Log.i(TAG, "savedInstanceState is not null");
 113             int position = savedInstanceState.getInt(SAVED_LIST_POSITION);
 114             setReferencePosition(position);
 115         }
 116
 117         registerForContextMenu(getListView());
 118         getListView().setOnCreateContextMenuListener(this);
 119
 120         mHandler = new Handler();
 121
 122         Log.i(TAG, "onActivityCreated() stop");
 123     }
 124
 125
 126
 127     @Override
 128     public void onSaveInstanceState(Bundle savedInstanceState) {
 129         Log.i(TAG, "onSaveInstanceState() start");
 130
 131         savedInstanceState.putInt(SAVED_LIST_POSITION, getReferencePosition());
 132
 133         Log.i(TAG, "onSaveInstanceState() stop");
 134     }
 135
 136
 137     @Override
 138     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 139         OCFile file = (OCFile) mAdapter.getItem(position);
 140         if (file != null) {
 141             /// Click on a directory
 142             if (file.getMimetype().equals("DIR")) {
 143                 // just local updates
 144                 mFile = file;
 145                 listDirectory(file);
 146                 // any other updates are let to the container Activity
 147                 mContainerActivity.onDirectoryClick(file);
 148
 149             } else {    /// Click on a file
 150                 mContainerActivity.onFileClick(file);
 151             }
 152
 153         } else {
 154             Log.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_context_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.open_file_item);
 176             toHide.add(R.id.download_file_item);
 177             toHide.add(R.id.cancel_download_item);
 178             toHide.add(R.id.cancel_upload_item);
 179             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 180                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 181                 toDisable.add(R.id.rename_file_item);
 182                 toDisable.add(R.id.remove_file_item);
 183
 184             }
 185
 186         } else {
 187             // contextual menu for regular files
 188             if (targetFile.isDown()) {
 189                 toHide.add(R.id.cancel_download_item);
 190                 toHide.add(R.id.cancel_upload_item);
 191                 item = menu.findItem(R.id.download_file_item);
 192                 if (item != null) {
 193                     item.setTitle(R.string.filedetails_sync_file);
 194                 }
 195             } else {
 196                 toHide.add(R.id.open_file_item);
 197             }
 198             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 199                 toHide.add(R.id.download_file_item);
 200                 toHide.add(R.id.cancel_upload_item);
 201                 toDisable.add(R.id.open_file_item);
 202                 toDisable.add(R.id.rename_file_item);
 203                 toDisable.add(R.id.remove_file_item);
 204
 205             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 206                 toHide.add(R.id.download_file_item);
 207                 toHide.add(R.id.cancel_download_item);
 208                 toDisable.add(R.id.open_file_item);
 209                 toDisable.add(R.id.rename_file_item);
 210                 toDisable.add(R.id.remove_file_item);
 211
 212             } else {
 213                 toHide.add(R.id.cancel_download_item);
 214                 toHide.add(R.id.cancel_upload_item);
 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.rename_file_item: {
 244                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), mTargetFile.getFileName(), this);
 245                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 246                 return true;
 247             }
 248             case R.id.remove_file_item: {
 249                 int messageStringId = R.string.confirmation_remove_alert;
 250                 int posBtnStringId = R.string.confirmation_remove_remote;
 251                 int neuBtnStringId = -1;
 252                 if (mTargetFile.isDirectory()) {
 253                     messageStringId = R.string.confirmation_remove_folder_alert;
 254                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 255                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 256                 } else if (mTargetFile.isDown()) {
 257                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 258                     neuBtnStringId = R.string.confirmation_remove_local;
 259                 }
 260                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 261                         messageStringId,
 262                         new String[]{mTargetFile.getFileName()},
 263                         posBtnStringId,
 264                         neuBtnStringId,
 265                         R.string.common_cancel);
 266                 confDialog.setOnConfirmationListener(this);
 267                 mCurrentDialog = confDialog;
 268                 mCurrentDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 269                 return true;
 270             }
 271             case R.id.open_file_item: {
 272                 String storagePath = mTargetFile.getStoragePath();
 273                 String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 274                 try {
 275                     Intent i = new Intent(Intent.ACTION_VIEW);
 276                     i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mTargetFile.getMimetype());
 277                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 278                     startActivity(i);
 279
 280                 } catch (Throwable t) {
 281                     Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mTargetFile.getMimetype());
 282                     boolean toastIt = true;
 283                     String mimeType = "";
 284                     try {
 285                         Intent i = new Intent(Intent.ACTION_VIEW);
 286                         mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 287                         if (mimeType == null || !mimeType.equals(mTargetFile.getMimetype())) {
 288                             if (mimeType != null) {
 289                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 290                             } else {
 291                                 // desperate try
 292                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), "*/*");
 293                             }
 294                             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 295                             startActivity(i);
 296                             toastIt = false;
 297                         }
 298
 299                     } catch (IndexOutOfBoundsException e) {
 300                         Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 301
 302                     } catch (ActivityNotFoundException e) {
 303                         Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 304
 305                     } catch (Throwable th) {
 306                         Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 307
 308                     } finally {
 309                         if (toastIt) {
 310                             Toast.makeText(getActivity(), "There is no application to handle file " + mTargetFile.getFileName(), Toast.LENGTH_SHORT).show();
 311                         }
 312                     }
 313
 314                 }
 315                 return true;
 316             }
 317             case R.id.download_file_item: {
 318                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 319                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 320                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(account, getSherlockActivity().getApplicationContext());
 321                 operation.execute(wc, mContainerActivity, mHandler);
 322                 getSherlockActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 323                 return true;
 324             }
 325             case R.id.cancel_download_item: {
 326                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 327                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 328                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 329                     downloaderBinder.cancel(account, mTargetFile);
 330                     listDirectory();
 331                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 332                 }
 333                 return true;
 334             }
 335             case R.id.cancel_upload_item: {
 336                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 337                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 338                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 339                     uploaderBinder.cancel(account, mTargetFile);
 340                     listDirectory();
 341                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 342                 }
 343                 return true;
 344             }
 345             default:
 346                 return super.onContextItemSelected(item);
 347         }
 348     }
 349
 350
 351     /**
 352      * Call this, when the user presses the up button
 353      */
 354     public void onNavigateUp() {
 355         OCFile parentDir = null;
 356
 357         if(mFile != null){
 358             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 359             parentDir = storageManager.getFileById(mFile.getParentId());
 360             mFile = parentDir;
 361         }
 362         listDirectory(parentDir);
 363     }
 364
 365     /**
 366      * Use this to query the {@link OCFile} that is currently
 367      * being displayed by this fragment
 368      * @return The currently viewed OCFile
 369      */
 370     public OCFile getCurrentFile(){
 371         return mFile;
 372     }
 373
 374     /**
 375      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 376      */
 377     public void listDirectory(){
 378         listDirectory(null);
 379     }
 380
 381     /**
 382      * Lists the given directory on the view. When the input parameter is null,
 383      * it will either refresh the last known directory, or list the root
 384      * if there never was a directory.
 385      *
 386      * @param directory File to be listed
 387      */
 388     public void listDirectory(OCFile directory) {
 389         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 390         if (storageManager != null) {
 391
 392             // Check input parameters for null
 393             if(directory == null){
 394                 if(mFile != null){
 395                     directory = mFile;
 396                 } else {
 397                     directory = storageManager.getFileByPath("/");
 398                     if (directory == null) return; // no files, wait for sync
 399                 }
 400             }
 401
 402
 403             // If that's not a directory -> List its parent
 404             if(!directory.isDirectory()){
 405                 Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 406                 directory = storageManager.getFileById(directory.getParentId());
 407             }
 408
 409             mAdapter.swapDirectory(directory, storageManager);
 410             if (mFile == null || !mFile.equals(directory)) {
 411                 mList.setSelectionFromTop(0, 0);
 412             }
 413             mFile = directory;
 414         }
 415     }
 416
 417
 418
 419     /**
 420      * Interface to implement by any Activity that includes some instance of FileListFragment
 421      *
 422      * @author David A. Velasco
 423      */
 424     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 425
 426         /**
 427          * Callback method invoked when a directory is clicked by the user on the files list
 428          *
 429          * @param file
 430          */
 431         public void onDirectoryClick(OCFile file);
 432
 433         /**
 434          * Callback method invoked when a file (non directory) is clicked by the user on the files list
 435          *
 436          * @param file
 437          */
 438         public void onFileClick(OCFile file);
 439
 440         /**
 441          * Getter for the current DataStorageManager in the container activity
 442          */
 443         public DataStorageManager getStorageManager();
 444
 445
 446         /**
 447          * Callback method invoked when the parent activity is fully created to get the directory to list firstly.
 448          *
 449          * @return  Directory to list firstly. Can be NULL.
 450          */
 451         public OCFile getInitialDirectory();
 452
 453
 454         /**
 455          * Callback method invoked when a the 'transfer state' of a file changes.
 456          *
 457          * This happens when a download or upload is started or ended for a file.
 458          *
 459          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 460          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 461          * won't provide the needed response before the method where this is called finishes.
 462          *
 463          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 464          *
 465          * @param file          OCFile which state changed.
 466          * @param downloading   Flag signaling if the file is now downloading.
 467          * @param uploading     Flag signaling if the file is now uploading.
 468          */
 469         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 470
 471     }
 472
 473
 474     @Override
 475     public void onDismiss(EditNameDialog dialog) {
 476         if (dialog.getResult()) {
 477             String newFilename = dialog.getNewFilename();
 478             Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 479             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 480                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 481                                                                 newFilename,
 482                                                                 mContainerActivity.getStorageManager());
 483             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 484             operation.execute(wc, mContainerActivity, mHandler);
 485             getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 486         }
 487     }
 488
 489
 490     @Override
 491     public void onConfirmation(String callerTag) {
 492         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 493             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 494                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 495                                                                     true,
 496                                                                     mContainerActivity.getStorageManager());
 497                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 498                 operation.execute(wc, mContainerActivity, mHandler);
 499
 500                 getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 501             }
 502             if (mCurrentDialog != null) {
 503                 mCurrentDialog.dismiss();
 504                 mCurrentDialog = null;
 505             }
 506         }
 507     }
 508
 509     @Override
 510     public void onNeutral(String callerTag) {
 511         File f = null;
 512         if (mTargetFile.isDirectory()) {
 513             // TODO run in a secondary thread?
 514             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 515
 516         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 517             f.delete();
 518             mTargetFile.setStoragePath(null);
 519             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 520         }
 521         if (mCurrentDialog != null) {
 522             mCurrentDialog.dismiss();
 523             mCurrentDialog = null;
 524         }
 525         listDirectory();
 526         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 527     }
 528
 529     @Override
 530     public void onCancel(String callerTag) {
 531         Log.d(TAG, "REMOVAL CANCELED");
 532         if (mCurrentDialog != null) {
 533             mCurrentDialog.dismiss();
 534             mCurrentDialog = null;
 535         }
 536     }
 537
 538
 539 }