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;
  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.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.WebdavClient;
  45 import eu.alefzero.webdav.WebdavUtils;
  46
  47 import android.accounts.Account;
  48 import android.app.Activity;
  49 import android.content.ActivityNotFoundException;
  50 import android.content.Intent;
  51 import android.net.Uri;
  52 import android.os.Bundle;
  53 import android.os.Handler;
  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
  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         if (targetFile.isDirectory()) {
 170             // contextual menu for folders
 171             toHide.add(R.id.open_file_item);
 172             toHide.add(R.id.download_file_item);
 173             toHide.add(R.id.cancel_download_item);
 174             toHide.add(R.id.cancel_upload_item);
 175             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 176                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 177                 toDisable.add(R.id.rename_file_item);
 178                 toDisable.add(R.id.remove_file_item);
 179
 180             }
 181
 182         } else {
 183             // contextual menu for regular files
 184             if (targetFile.isDown()) {
 185                 toHide.add(R.id.cancel_download_item);
 186                 toHide.add(R.id.cancel_upload_item);
 187             } else {
 188                 toHide.add(R.id.open_file_item);
 189             }
 190             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 191                 toHide.add(R.id.download_file_item);
 192                 toHide.add(R.id.cancel_upload_item);
 193                 toDisable.add(R.id.open_file_item);
 194                 toDisable.add(R.id.rename_file_item);
 195                 toDisable.add(R.id.remove_file_item);
 196
 197             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 198                 toHide.add(R.id.download_file_item);
 199                 toHide.add(R.id.cancel_download_item);
 200                 toDisable.add(R.id.open_file_item);
 201                 toDisable.add(R.id.rename_file_item);
 202                 toDisable.add(R.id.remove_file_item);
 203
 204             } else {
 205                 toHide.add(R.id.cancel_download_item);
 206                 toHide.add(R.id.cancel_upload_item);
 207             }
 208         }
 209
 210         MenuItem item = null;
 211         for (int i : toHide) {
 212             item = menu.findItem(i);
 213             if (item != null) {
 214                 item.setVisible(false);
 215                 item.setEnabled(false);
 216             }
 217         }
 218
 219         for (int i : toDisable) {
 220             item = menu.findItem(i);
 221             if (item != null) {
 222                 item.setEnabled(false);
 223             }
 224         }
 225     }
 226
 227
 228     /**
 229      * {@inhericDoc}
 230      */
 231     @Override
 232     public boolean onContextItemSelected (MenuItem item) {
 233         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 234         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 235         switch (item.getItemId()) {
 236             case R.id.rename_file_item: {
 237                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), mTargetFile.getFileName(), this);
 238                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 239                 return true;
 240             }
 241             case R.id.remove_file_item: {
 242                 int messageStringId = R.string.confirmation_remove_alert;
 243                 int posBtnStringId = R.string.confirmation_remove_remote;
 244                 int neuBtnStringId = -1;
 245                 if (mTargetFile.isDirectory()) {
 246                     messageStringId = R.string.confirmation_remove_folder_alert;
 247                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 248                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 249                 } else if (mTargetFile.isDown()) {
 250                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 251                     neuBtnStringId = R.string.confirmation_remove_local;
 252                 }
 253                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 254                         messageStringId,
 255                         new String[]{mTargetFile.getFileName()},
 256                         posBtnStringId,
 257                         neuBtnStringId,
 258                         R.string.common_cancel);
 259                 confDialog.setOnConfirmationListener(this);
 260                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 261                 return true;
 262             }
 263             case R.id.open_file_item: {
 264                 String storagePath = mTargetFile.getStoragePath();
 265                 String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 266                 try {
 267                     Intent i = new Intent(Intent.ACTION_VIEW);
 268                     i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mTargetFile.getMimetype());
 269                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 270                     startActivity(i);
 271
 272                 } catch (Throwable t) {
 273                     Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mTargetFile.getMimetype());
 274                     boolean toastIt = true;
 275                     String mimeType = "";
 276                     try {
 277                         Intent i = new Intent(Intent.ACTION_VIEW);
 278                         mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 279                         if (mimeType == null || !mimeType.equals(mTargetFile.getMimetype())) {
 280                             if (mimeType != null) {
 281                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 282                             } else {
 283                                 // desperate try
 284                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), "*/*");
 285                             }
 286                             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 287                             startActivity(i);
 288                             toastIt = false;
 289                         }
 290
 291                     } catch (IndexOutOfBoundsException e) {
 292                         Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 293
 294                     } catch (ActivityNotFoundException e) {
 295                         Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 296
 297                     } catch (Throwable th) {
 298                         Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 299
 300                     } finally {
 301                         if (toastIt) {
 302                             Toast.makeText(getActivity(), "There is no application to handle file " + mTargetFile.getFileName(), Toast.LENGTH_SHORT).show();
 303                         }
 304                     }
 305
 306                 }
 307                 return true;
 308             }
 309             case R.id.download_file_item: {
 310                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 311                 Intent i = new Intent(getActivity(), FileDownloader.class);
 312                 i.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
 313                 i.putExtra(FileDownloader.EXTRA_FILE, mTargetFile);
 314                 getActivity().startService(i);
 315                 listDirectory();
 316                 mContainerActivity.onTransferStateChanged(mTargetFile, true, false);
 317                 return true;
 318             }
 319             case R.id.cancel_download_item: {
 320                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 321                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 322                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 323                     downloaderBinder.cancel(account, mTargetFile);
 324                     listDirectory();
 325                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 326                 }
 327                 return true;
 328             }
 329             case R.id.cancel_upload_item: {
 330                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 331                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 332                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 333                     uploaderBinder.cancel(account, mTargetFile);
 334                     listDirectory();
 335                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 336                 }
 337                 return true;
 338             }
 339             default:
 340                 return super.onContextItemSelected(item);
 341         }
 342     }
 343
 344
 345     /**
 346      * Call this, when the user presses the up button
 347      */
 348     public void onNavigateUp() {
 349         OCFile parentDir = null;
 350
 351         if(mFile != null){
 352             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 353             parentDir = storageManager.getFileById(mFile.getParentId());
 354             mFile = parentDir;
 355         }
 356         listDirectory(parentDir);
 357     }
 358
 359     /**
 360      * Use this to query the {@link OCFile} that is currently
 361      * being displayed by this fragment
 362      * @return The currently viewed OCFile
 363      */
 364     public OCFile getCurrentFile(){
 365         return mFile;
 366     }
 367
 368     /**
 369      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 370      */
 371     public void listDirectory(){
 372         listDirectory(null);
 373     }
 374
 375     /**
 376      * Lists the given directory on the view. When the input parameter is null,
 377      * it will either refresh the last known directory, or list the root
 378      * if there never was a directory.
 379      *
 380      * @param directory File to be listed
 381      */
 382     public void listDirectory(OCFile directory) {
 383         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 384         if (storageManager != null) {
 385
 386             // Check input parameters for null
 387             if(directory == null){
 388                 if(mFile != null){
 389                     directory = mFile;
 390                 } else {
 391                     directory = storageManager.getFileByPath("/");
 392                     if (directory == null) return; // no files, wait for sync
 393                 }
 394             }
 395
 396
 397             // If that's not a directory -> List its parent
 398             if(!directory.isDirectory()){
 399                 Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 400                 directory = storageManager.getFileById(directory.getParentId());
 401             }
 402
 403             mAdapter.swapDirectory(directory, storageManager);
 404             if (mFile == null || !mFile.equals(directory)) {
 405                 mList.setSelectionFromTop(0, 0);
 406             }
 407             mFile = directory;
 408         }
 409     }
 410
 411
 412
 413     /**
 414      * Interface to implement by any Activity that includes some instance of FileListFragment
 415      *
 416      * @author David A. Velasco
 417      */
 418     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 419
 420         /**
 421          * Callback method invoked when a directory is clicked by the user on the files list
 422          *
 423          * @param file
 424          */
 425         public void onDirectoryClick(OCFile file);
 426
 427         /**
 428          * Callback method invoked when a file (non directory) is clicked by the user on the files list
 429          *
 430          * @param file
 431          */
 432         public void onFileClick(OCFile file);
 433
 434         /**
 435          * Getter for the current DataStorageManager in the container activity
 436          */
 437         public DataStorageManager getStorageManager();
 438
 439
 440         /**
 441          * Callback method invoked when the parent activity is fully created to get the directory to list firstly.
 442          *
 443          * @return  Directory to list firstly. Can be NULL.
 444          */
 445         public OCFile getInitialDirectory();
 446
 447
 448         /**
 449          * Callback method invoked when a the 'transfer state' of a file changes.
 450          *
 451          * This happens when a download or upload is started or ended for a file.
 452          *
 453          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 454          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 455          * won't provide the needed response before the method where this is called finishes.
 456          *
 457          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 458          *
 459          * @param file          OCFile which state changed.
 460          * @param downloading   Flag signaling if the file is now downloading.
 461          * @param uploading     Flag signaling if the file is now uploading.
 462          */
 463         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 464
 465     }
 466
 467
 468     @Override
 469     public void onDismiss(EditNameDialog dialog) {
 470         if (dialog.getResult()) {
 471             String newFilename = dialog.getNewFilename();
 472             Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 473             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 474                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 475                                                                 newFilename,
 476                                                                 mContainerActivity.getStorageManager());
 477             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 478             operation.execute(wc, mContainerActivity, mHandler);
 479             getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 480         }
 481     }
 482
 483
 484     @Override
 485     public void onConfirmation(String callerTag) {
 486         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 487             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 488                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 489                                                                     true,
 490                                                                     mContainerActivity.getStorageManager());
 491                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 492                 operation.execute(wc, mContainerActivity, mHandler);
 493
 494                 getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 495             }
 496         }
 497     }
 498
 499     @Override
 500     public void onNeutral(String callerTag) {
 501         File f = null;
 502         if (mTargetFile.isDirectory()) {
 503             // TODO run in a secondary thread?
 504             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 505
 506         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 507             f.delete();
 508             mTargetFile.setStoragePath(null);
 509             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 510         }
 511         listDirectory();
 512         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 513     }
 514
 515     @Override
 516     public void onCancel(String callerTag) {
 517         Log.d(TAG, "REMOVAL CANCELED");
 518     }
 519
 520
 521 }