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