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.R;
  25 import com.owncloud.android.authentication.AccountUtils;
  26 import com.owncloud.android.datamodel.FileDataStorageManager;
  27 import com.owncloud.android.datamodel.OCFile;
  28 import com.owncloud.android.files.FileHandler;
  29 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  30 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  31 import com.owncloud.android.oc_framework.operations.OnRemoteOperationListener;
  32 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  33 import com.owncloud.android.operations.RemoveFileOperation;
  34 import com.owncloud.android.operations.RenameFileOperation;
  35 import com.owncloud.android.operations.SynchronizeFileOperation;
  36 import com.owncloud.android.ui.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 import com.owncloud.android.ui.preview.PreviewImageFragment;
  43 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  44 import com.owncloud.android.utils.Log_OC;
  45
  46 import android.accounts.Account;
  47 import android.app.Activity;
  48 import android.content.Intent;
  49 import android.net.Uri;
  50 import android.os.Bundle;
  51 import android.os.Handler;
  52 import android.view.ContextMenu;
  53 import android.view.MenuInflater;
  54 import android.view.MenuItem;
  55 import android.view.View;
  56 import android.widget.AdapterView;
  57 import android.widget.AdapterView.AdapterContextMenuInfo;
  58
  59 /**
  60  * A Fragment that lists all files and folders in a given path.
  61  *
  62  * @author Bartek Przybylski
  63  *
  64  */
  65 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  66
  67     private static final String TAG = OCFileListFragment.class.getSimpleName();
  68
  69     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  70     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  71
  72     private OCFileListFragment.ContainerActivity mContainerActivity;
  73
  74     private OCFile mFile = null;
  75     private FileListListAdapter mAdapter;
  76
  77     private Handler mHandler;
  78     private OCFile mTargetFile;
  79
  80     /**
  81      * {@inheritDoc}
  82      */
  83     @Override
  84     public void onAttach(Activity activity) {
  85         super.onAttach(activity);
  86         Log_OC.e(TAG, "onAttach");
  87         try {
  88             mContainerActivity = (ContainerActivity) activity;
  89         } catch (ClassCastException e) {
  90             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  91         }
  92     }
  93
  94
  95     /**
  96      * {@inheritDoc}
  97      */
  98     @Override
  99     public void onActivityCreated(Bundle savedInstanceState) {
 100         super.onActivityCreated(savedInstanceState);
 101         Log_OC.e(TAG, "onActivityCreated() start");
 102         mAdapter = new FileListListAdapter(getActivity(), mContainerActivity);
 103         if (savedInstanceState != null) {
 104             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 105         }
 106         setListAdapter(mAdapter);
 107
 108         registerForContextMenu(getListView());
 109         getListView().setOnCreateContextMenuListener(this);
 110
 111         mHandler = new Handler();
 112
 113     }
 114
 115     /**
 116      * Saves the current listed folder.
 117      */
 118     @Override
 119     public void onSaveInstanceState (Bundle outState) {
 120         super.onSaveInstanceState(outState);
 121         outState.putParcelable(EXTRA_FILE, mFile);
 122     }
 123
 124
 125     /**
 126      * Call this, when the user presses the up button.
 127      *
 128      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 129      * it continues browsing up until finding an existing folders.
 130      *
 131      * return       Count of folder levels browsed up.
 132      */
 133     public int onBrowseUp() {
 134         OCFile parentDir = null;
 135         int moveCount = 0;
 136
 137         if(mFile != null){
 138             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 139
 140             String parentPath = null;
 141             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 142                 parentPath = new File(mFile.getRemotePath()).getParent();
 143                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 144                 parentDir = storageManager.getFileByPath(parentPath);
 145                 moveCount++;
 146             } else {
 147                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);    // never returns null; keep the path in root folder
 148             }
 149             while (parentDir == null) {
 150                 parentPath = new File(parentPath).getParent();
 151                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 152                 parentDir = storageManager.getFileByPath(parentPath);
 153                 moveCount++;
 154             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 155             mFile = parentDir;
 156         }
 157
 158         if (mFile != null) {
 159             listDirectory(mFile);
 160
 161             mContainerActivity.startSyncFolderOperation(mFile);
 162         }   // else - should never happen now
 163
 164         return moveCount;
 165     }
 166
 167     @Override
 168     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 169         OCFile file = (OCFile) mAdapter.getItem(position);
 170         if (file != null) {
 171             if (file.isFolder()) {
 172                 // update state and view of this fragment
 173                 listDirectory(file);
 174                 // then, notify parent activity to let it update its state and view, and other fragments
 175                 mContainerActivity.onBrowsedDownTo(file);
 176
 177             } else { /// Click on a file
 178                 if (PreviewImageFragment.canBePreviewed(file)) {
 179                     // preview image - it handles the download, if needed
 180                     mContainerActivity.startImagePreview(file);
 181
 182                 } else if (file.isDown()) {
 183                     if (PreviewMediaFragment.canBePreviewed(file)) {
 184                         // media preview
 185                         mContainerActivity.startMediaPreview(file, 0, true);
 186                     } else {
 187                         // open with
 188                         mContainerActivity.openFile(file);
 189                     }
 190
 191                 } else {
 192                     // automatic download, preview on finish
 193                     mContainerActivity.startDownloadForPreview(file);
 194                 }
 195
 196             }
 197
 198         } else {
 199             Log_OC.d(TAG, "Null object in ListAdapter!!");
 200         }
 201
 202     }
 203
 204     /**
 205      * {@inheritDoc}
 206      */
 207     @Override
 208     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 209         super.onCreateContextMenu(menu, v, menuInfo);
 210         MenuInflater inflater = getActivity().getMenuInflater();
 211         inflater.inflate(R.menu.file_actions_menu, menu);
 212         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 213         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 214         List<Integer> toHide = new ArrayList<Integer>();
 215         List<Integer> toDisable = new ArrayList<Integer>();
 216
 217         MenuItem item = null;
 218         if (targetFile.isFolder()) {
 219             // contextual menu for folders
 220             toHide.add(R.id.action_open_file_with);
 221             toHide.add(R.id.action_download_file);
 222             toHide.add(R.id.action_cancel_download);
 223             toHide.add(R.id.action_cancel_upload);
 224             toHide.add(R.id.action_sync_file);
 225             toHide.add(R.id.action_see_details);
 226             toHide.add(R.id.action_share_file);
 227             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 228                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 229                 toDisable.add(R.id.action_rename_file);
 230                 toDisable.add(R.id.action_remove_file);
 231
 232             }
 233
 234         } else {
 235             // contextual menu for regular files
 236
 237             // new design: 'download' and 'open with' won't be available anymore in context menu
 238             toHide.add(R.id.action_download_file);
 239             toHide.add(R.id.action_open_file_with);
 240
 241             if (targetFile.isDown()) {
 242                 toHide.add(R.id.action_cancel_download);
 243                 toHide.add(R.id.action_cancel_upload);
 244
 245             } else {
 246                 toHide.add(R.id.action_sync_file);
 247             }
 248             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 249                 toHide.add(R.id.action_cancel_upload);
 250                 toDisable.add(R.id.action_rename_file);
 251                 toDisable.add(R.id.action_remove_file);
 252
 253             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 254                 toHide.add(R.id.action_cancel_download);
 255                 toDisable.add(R.id.action_rename_file);
 256                 toDisable.add(R.id.action_remove_file);
 257
 258             } else {
 259                 toHide.add(R.id.action_cancel_download);
 260                 toHide.add(R.id.action_cancel_upload);
 261             }
 262         }
 263
 264         for (int i : toHide) {
 265             item = menu.findItem(i);
 266             if (item != null) {
 267                 item.setVisible(false);
 268                 item.setEnabled(false);
 269             }
 270         }
 271
 272         for (int i : toDisable) {
 273             item = menu.findItem(i);
 274             if (item != null) {
 275                 item.setEnabled(false);
 276             }
 277         }
 278     }
 279
 280
 281     /**
 282      * {@inhericDoc}
 283      */
 284     @Override
 285     public boolean onContextItemSelected (MenuItem item) {
 286         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 287         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 288         switch (item.getItemId()) {
 289             case R.id.action_rename_file: {
 290                 String fileName = mTargetFile.getFileName();
 291                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 292                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 293                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 294                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 295                 return true;
 296             }
 297             case R.id.action_remove_file: {
 298                 int messageStringId = R.string.confirmation_remove_alert;
 299                 int posBtnStringId = R.string.confirmation_remove_remote;
 300                 int neuBtnStringId = -1;
 301                 if (mTargetFile.isFolder()) {
 302                     messageStringId = R.string.confirmation_remove_folder_alert;
 303                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 304                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 305                 } else if (mTargetFile.isDown()) {
 306                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 307                     neuBtnStringId = R.string.confirmation_remove_local;
 308                 }
 309                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 310                         messageStringId,
 311                         new String[]{mTargetFile.getFileName()},
 312                         posBtnStringId,
 313                         neuBtnStringId,
 314                         R.string.common_cancel);
 315                 confDialog.setOnConfirmationListener(this);
 316                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 317                 return true;
 318             }
 319             case R.id.action_sync_file: {
 320                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 321                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, getSherlockActivity());
 322                 operation.execute(account, getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 323                 ((FileDisplayActivity) getSherlockActivity()).showLoadingDialog();
 324                 return true;
 325             }
 326             case R.id.action_cancel_download: {
 327                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 328                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 329                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 330                     downloaderBinder.cancel(account, mTargetFile);
 331                     listDirectory();
 332                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 333                 }
 334                 return true;
 335             }
 336             case R.id.action_cancel_upload: {
 337                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 338                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 339                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 340                     uploaderBinder.cancel(account, mTargetFile);
 341                     listDirectory();
 342                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 343                 }
 344                 return true;
 345             }
 346             case R.id.action_see_details: {
 347                 ((FileFragment.ContainerActivity)getActivity()).showDetails(mTargetFile);
 348                 return true;
 349             }
 350             case R.id.action_share_file: {
 351                 Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
 352                 // set MimeType
 353                 sharingIntent.setType(mTargetFile.getMimetype());
 354                 sharingIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://"+mTargetFile.getStoragePath()));
 355                 startActivity(Intent.createChooser(sharingIntent, "Share via"));
 356                 return true;
 357             }
 358             default:
 359                 return super.onContextItemSelected(item);
 360         }
 361     }
 362
 363
 364     /**
 365      * Use this to query the {@link OCFile} that is currently
 366      * being displayed by this fragment
 367      * @return The currently viewed OCFile
 368      */
 369     public OCFile getCurrentFile(){
 370         return mFile;
 371     }
 372
 373     /**
 374      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 375      */
 376     public void listDirectory(){
 377         listDirectory(null);
 378     }
 379
 380     /**
 381      * Lists the given directory on the view. When the input parameter is null,
 382      * it will either refresh the last known directory. list the root
 383      * if there never was a directory.
 384      *
 385      * @param directory File to be listed
 386      */
 387     public void listDirectory(OCFile directory) {
 388         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 389         if (storageManager != null) {
 390
 391             // Check input parameters for null
 392             if(directory == null){
 393                 if(mFile != null){
 394                     directory = mFile;
 395                 } else {
 396                     directory = storageManager.getFileByPath("/");
 397                     if (directory == null) return; // no files, wait for sync
 398                 }
 399             }
 400
 401
 402             // If that's not a directory -> List its parent
 403             if(!directory.isFolder()){
 404                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 405                 directory = storageManager.getFileById(directory.getParentId());
 406             }
 407
 408             mAdapter.swapDirectory(directory, storageManager);
 409             if (mFile == null || !mFile.equals(directory)) {
 410                 mList.setSelectionFromTop(0, 0);
 411             }
 412             mFile = directory;
 413         }
 414     }
 415
 416
 417
 418     /**
 419      * Interface to implement by any Activity that includes some instance of FileListFragment
 420      *
 421      * @author David A. Velasco
 422      */
 423     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener, FileHandler {
 424
 425         /**
 426          * Callback method invoked when a the user browsed into a different folder through the list of files
 427          *
 428          * @param file
 429          */
 430         public void onBrowsedDownTo(OCFile folder);
 431
 432         public void startDownloadForPreview(OCFile file);
 433
 434         public void startMediaPreview(OCFile file, int i, boolean b);
 435
 436         public void startImagePreview(OCFile file);
 437
 438         public void startSyncFolderOperation(OCFile folder);
 439
 440         /**
 441          * Getter for the current DataStorageManager in the container activity
 442          */
 443         public FileDataStorageManager getStorageManager();
 444
 445
 446         /**
 447          * Callback method invoked when a the 'transfer state' of a file changes.
 448          *
 449          * This happens when a download or upload is started or ended for a file.
 450          *
 451          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 452          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 453          * won't provide the needed response before the method where this is called finishes.
 454          *
 455          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 456          *
 457          * @param file          OCFile which state changed.
 458          * @param downloading   Flag signaling if the file is now downloading.
 459          * @param uploading     Flag signaling if the file is now uploading.
 460          */
 461         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 462
 463     }
 464
 465
 466     @Override
 467     public void onDismiss(EditNameDialog dialog) {
 468         if (dialog.getResult()) {
 469             String newFilename = dialog.getNewFilename();
 470             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 471             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 472                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 473                                                                 newFilename,
 474                                                                 mContainerActivity.getStorageManager());
 475             operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 476             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 477         }
 478     }
 479
 480
 481     @Override
 482     public void onConfirmation(String callerTag) {
 483         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 484             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 485                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 486                                                                     true,
 487                                                                     mContainerActivity.getStorageManager());
 488                 operation.execute(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity(), mContainerActivity, mHandler, getSherlockActivity());
 489
 490                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 491             }
 492         }
 493     }
 494
 495     @Override
 496     public void onNeutral(String callerTag) {
 497         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 498         listDirectory();
 499         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 500     }
 501
 502     @Override
 503     public void onCancel(String callerTag) {
 504         Log_OC.d(TAG, "REMOVAL CANCELED");
 505     }
 506
 507
 508 }