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 version 2,
   7  *   as published by the Free Software Foundation.
   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.Log_OC;
  25 import com.owncloud.android.R;
  26 import com.owncloud.android.authentication.AccountUtils;
  27 import com.owncloud.android.datamodel.DataStorageManager;
  28 import com.owncloud.android.datamodel.OCFile;
  29 import com.owncloud.android.files.FileHandler;
  30 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  31 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  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.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 import com.owncloud.android.ui.preview.PreviewImageFragment;
  44 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  45
  46 import android.accounts.Account;
  47 import android.app.Activity;
  48 import android.os.Bundle;
  49 import android.os.Handler;
  50 import android.view.ContextMenu;
  51 import android.view.MenuInflater;
  52 import android.view.MenuItem;
  53 import android.view.View;
  54 import android.widget.AdapterView;
  55 import android.widget.AdapterView.AdapterContextMenuInfo;
  56
  57 /**
  58  * A Fragment that lists all files and folders in a given path.
  59  *
  60  * @author Bartek Przybylski
  61  *
  62  */
  63 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  64
  65     private static final String TAG = OCFileListFragment.class.getSimpleName();
  66
  67     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  68     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  69
  70     private OCFileListFragment.ContainerActivity mContainerActivity;
  71
  72     private OCFile mFile = null;
  73     private FileListListAdapter mAdapter;
  74
  75     private Handler mHandler;
  76     private OCFile mTargetFile;
  77
  78     /**
  79      * {@inheritDoc}
  80      */
  81     @Override
  82     public void onAttach(Activity activity) {
  83         super.onAttach(activity);
  84         Log_OC.e(TAG, "onAttach");
  85         try {
  86             mContainerActivity = (ContainerActivity) activity;
  87         } catch (ClassCastException e) {
  88             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  89         }
  90     }
  91
  92
  93     /**
  94      * {@inheritDoc}
  95      */
  96     @Override
  97     public void onActivityCreated(Bundle savedInstanceState) {
  98         super.onActivityCreated(savedInstanceState);
  99         Log_OC.e(TAG, "onActivityCreated() start");
 100         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 101         if (savedInstanceState != null) {
 102             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 103         }
 104         setListAdapter(mAdapter);
 105
 106         registerForContextMenu(getListView());
 107         getListView().setOnCreateContextMenuListener(this);
 108
 109         mHandler = new Handler();
 110
 111     }
 112
 113     /**
 114      * Saves the current listed folder.
 115      */
 116     @Override
 117     public void onSaveInstanceState (Bundle outState) {
 118         super.onSaveInstanceState(outState);
 119         outState.putParcelable(EXTRA_FILE, mFile);
 120     }
 121
 122
 123     /**
 124      * Call this, when the user presses the up button
 125      */
 126     public void onBrowseUp() {
 127         OCFile parentDir = null;
 128
 129         if(mFile != null){
 130             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 131             parentDir = storageManager.getFileById(mFile.getParentId());
 132             mFile = parentDir;
 133         }
 134         listDirectory(parentDir);
 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             if (file.isDirectory()) {
 142                 // update state and view of this fragment
 143                 listDirectory(file);
 144                 // then, notify parent activity to let it update its state and view, and other fragments
 145                 mContainerActivity.onBrowsedDownTo(file);
 146
 147             } else { /// Click on a file
 148                 if (PreviewImageFragment.canBePreviewed(file)) {
 149                     // preview image - it handles the download, if needed
 150                     mContainerActivity.startImagePreview(file);
 151
 152                 } else if (file.isDown()) {
 153                     if (PreviewMediaFragment.canBePreviewed(file)) {
 154                         // media preview
 155                         mContainerActivity.startMediaPreview(file, 0, true);
 156                     } else {
 157                         // open with
 158                         mContainerActivity.openFile(file);
 159                     }
 160
 161                 } else {
 162                     // automatic download, preview on finish
 163                     mContainerActivity.startDownloadForPreview(file);
 164                 }
 165
 166             }
 167
 168         } else {
 169             Log_OC.d(TAG, "Null object in ListAdapter!!");
 170         }
 171
 172     }
 173
 174     /**
 175      * {@inheritDoc}
 176      */
 177     @Override
 178     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 179         super.onCreateContextMenu(menu, v, menuInfo);
 180         MenuInflater inflater = getActivity().getMenuInflater();
 181         inflater.inflate(R.menu.file_actions_menu, menu);
 182         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 183         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 184         List<Integer> toHide = new ArrayList<Integer>();
 185         List<Integer> toDisable = new ArrayList<Integer>();
 186
 187         MenuItem item = null;
 188         if (targetFile.isDirectory()) {
 189             // contextual menu for folders
 190             toHide.add(R.id.action_open_file_with);
 191             toHide.add(R.id.action_download_file);
 192             toHide.add(R.id.action_cancel_download);
 193             toHide.add(R.id.action_cancel_upload);
 194             toHide.add(R.id.action_sync_file);
 195             toHide.add(R.id.action_see_details);
 196             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 197                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 198                 toDisable.add(R.id.action_rename_file);
 199                 toDisable.add(R.id.action_remove_file);
 200
 201             }
 202
 203         } else {
 204             // contextual menu for regular files
 205
 206             // new design: 'download' and 'open with' won't be available anymore in context menu
 207             toHide.add(R.id.action_download_file);
 208             toHide.add(R.id.action_open_file_with);
 209
 210             if (targetFile.isDown()) {
 211                 toHide.add(R.id.action_cancel_download);
 212                 toHide.add(R.id.action_cancel_upload);
 213
 214             } else {
 215                 toHide.add(R.id.action_sync_file);
 216             }
 217             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 218                 toHide.add(R.id.action_cancel_upload);
 219                 toDisable.add(R.id.action_rename_file);
 220                 toDisable.add(R.id.action_remove_file);
 221
 222             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 223                 toHide.add(R.id.action_cancel_download);
 224                 toDisable.add(R.id.action_rename_file);
 225                 toDisable.add(R.id.action_remove_file);
 226
 227             } else {
 228                 toHide.add(R.id.action_cancel_download);
 229                 toHide.add(R.id.action_cancel_upload);
 230             }
 231         }
 232
 233         for (int i : toHide) {
 234             item = menu.findItem(i);
 235             if (item != null) {
 236                 item.setVisible(false);
 237                 item.setEnabled(false);
 238             }
 239         }
 240
 241         for (int i : toDisable) {
 242             item = menu.findItem(i);
 243             if (item != null) {
 244                 item.setEnabled(false);
 245             }
 246         }
 247     }
 248
 249
 250     /**
 251      * {@inhericDoc}
 252      */
 253     @Override
 254     public boolean onContextItemSelected (MenuItem item) {
 255         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 256         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 257         switch (item.getItemId()) {
 258             case R.id.action_rename_file: {
 259                 String fileName = mTargetFile.getFileName();
 260                 int extensionStart = mTargetFile.isDirectory() ? -1 : fileName.lastIndexOf(".");
 261                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 262                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 263                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 264                 return true;
 265             }
 266             case R.id.action_remove_file: {
 267                 int messageStringId = R.string.confirmation_remove_alert;
 268                 int posBtnStringId = R.string.confirmation_remove_remote;
 269                 int neuBtnStringId = -1;
 270                 if (mTargetFile.isDirectory()) {
 271                     messageStringId = R.string.confirmation_remove_folder_alert;
 272                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 273                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 274                 } else if (mTargetFile.isDown()) {
 275                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 276                     neuBtnStringId = R.string.confirmation_remove_local;
 277                 }
 278                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 279                         messageStringId,
 280                         new String[]{mTargetFile.getFileName()},
 281                         posBtnStringId,
 282                         neuBtnStringId,
 283                         R.string.common_cancel);
 284                 confDialog.setOnConfirmationListener(this);
 285                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 286                 return true;
 287             }
 288             case R.id.action_sync_file: {
 289                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 290                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 291                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 292                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 293                 return true;
 294             }
 295             case R.id.action_cancel_download: {
 296                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 297                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 298                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 299                     downloaderBinder.cancel(account, mTargetFile);
 300                     listDirectory();
 301                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 302                 }
 303                 return true;
 304             }
 305             case R.id.action_cancel_upload: {
 306                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 307                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 308                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 309                     uploaderBinder.cancel(account, mTargetFile);
 310                     listDirectory();
 311                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 312                 }
 313                 return true;
 314             }
 315             case R.id.action_see_details: {
 316                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 317                 return true;
 318             }
 319             default:
 320                 return super.onContextItemSelected(item);
 321         }
 322     }
 323
 324
 325     /**
 326      * Use this to query the {@link OCFile} that is currently
 327      * being displayed by this fragment
 328      * @return The currently viewed OCFile
 329      */
 330     public OCFile getCurrentFile(){
 331         return mFile;
 332     }
 333
 334     /**
 335      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 336      */
 337     public void listDirectory(){
 338         listDirectory(null);
 339     }
 340
 341     /**
 342      * Lists the given directory on the view. When the input parameter is null,
 343      * it will either refresh the last known directory. list the root
 344      * if there never was a directory.
 345      *
 346      * @param directory File to be listed
 347      */
 348     public void listDirectory(OCFile directory) {
 349         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 350         if (storageManager != null) {
 351
 352             // Check input parameters for null
 353             if(directory == null){
 354                 if(mFile != null){
 355                     directory = mFile;
 356                 } else {
 357                     directory = storageManager.getFileByPath("/");
 358                     if (directory == null) return; // no files, wait for sync
 359                 }
 360             }
 361
 362
 363             // If that's not a directory -> List its parent
 364             if(!directory.isDirectory()){
 365                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 366                 directory = storageManager.getFileById(directory.getParentId());
 367             }
 368
 369             mAdapter.swapDirectory(directory, storageManager);
 370             if (mFile == null || !mFile.equals(directory)) {
 371                 mList.setSelectionFromTop(0, 0);
 372             }
 373             mFile = directory;
 374
 375         }
 376     }
 377
 378
 379
 380     /**
 381      * Interface to implement by any Activity that includes some instance of FileListFragment
 382      *
 383      * @author David A. Velasco
 384      */
 385     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 386
 387         /**
 388          * Callback method invoked when a the user browsed into a different folder through the list of files
 389          *
 390          * @param file
 391          */
 392         public void onBrowsedDownTo(OCFile folder);
 393
 394         public void startDownloadForPreview(OCFile file);
 395
 396         public void startMediaPreview(OCFile file, int i, boolean b);
 397
 398         public void startImagePreview(OCFile file);
 399
 400         /**
 401          * Getter for the current DataStorageManager in the container activity
 402          */
 403         public DataStorageManager getStorageManager();
 404
 405
 406         /**
 407          * Callback method invoked when a the 'transfer state' of a file changes.
 408          *
 409          * This happens when a download or upload is started or ended for a file.
 410          *
 411          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 412          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 413          * won't provide the needed response before the method where this is called finishes.
 414          *
 415          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 416          *
 417          * @param file          OCFile which state changed.
 418          * @param downloading   Flag signaling if the file is now downloading.
 419          * @param uploading     Flag signaling if the file is now uploading.
 420          */
 421         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 422
 423     }
 424
 425
 426     @Override
 427     public void onDismiss(EditNameDialog dialog) {
 428         if (dialog.getResult()) {
 429             String newFilename = dialog.getNewFilename();
 430             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 431             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 432                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 433                                                                 newFilename,
 434                                                                 mContainerActivity.getStorageManager());
 435             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 436             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 437         }
 438     }
 439
 440
 441     @Override
 442     public void onConfirmation(String callerTag) {
 443         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 444             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 445                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 446                                                                     true,
 447                                                                     mContainerActivity.getStorageManager());
 448                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 449
 450                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 451             }
 452         }
 453     }
 454
 455     @Override
 456     public void onNeutral(String callerTag) {
 457         File f = null;
 458         if (mTargetFile.isDirectory()) {
 459             // TODO run in a secondary thread?
 460             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 461
 462         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 463             f.delete();
 464             mTargetFile.setStoragePath(null);
 465             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 466         }
 467         listDirectory();
 468         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 469     }
 470
 471     @Override
 472     public void onCancel(String callerTag) {
 473         Log_OC.d(TAG, "REMOVAL CANCELED");
 474     }
 475
 476
 477 }