src/com/owncloud/android/ui/fragment/OCFileListFragment.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2014 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.services.FileDownloader.FileDownloaderBinder;
  29 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  30 import com.owncloud.android.ui.adapter.FileListListAdapter;
  31 import com.owncloud.android.ui.activity.FileDisplayActivity;
  32 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  33 import com.owncloud.android.ui.dialog.EditNameDialog;
  34 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  35 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  36 import com.owncloud.android.ui.preview.PreviewImageFragment;
  37 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  38 import com.owncloud.android.utils.Log_OC;
  39
  40 import android.accounts.Account;
  41 import android.app.Activity;
  42 import android.os.Bundle;
  43 import android.view.ContextMenu;
  44 import android.view.MenuInflater;
  45 import android.view.MenuItem;
  46 import android.view.View;
  47 import android.widget.AdapterView;
  48 import android.widget.AdapterView.AdapterContextMenuInfo;
  49
  50 /**
  51  * A Fragment that lists all files and folders in a given path.
  52  *
  53  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  54  *
  55  * @author Bartek Przybylski
  56  * @author masensio
  57  * @author David A. Velasco
  58  */
  59 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  60
  61     private static final String TAG = OCFileListFragment.class.getSimpleName();
  62
  63     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  64     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  65
  66     private static final String KEY_INDEXES = "INDEXES";
  67     private static final String KEY_FIRST_POSITIONS= "FIRST_POSITIONS";
  68     private static final String KEY_TOPS = "TOPS";
  69     private static final String KEY_HEIGHT_CELL = "HEIGHT_CELL";
  70
  71     private FileFragment.ContainerActivity mContainerActivity;
  72
  73     private OCFile mFile = null;
  74     private FileListListAdapter mAdapter;
  75
  76     private OCFile mTargetFile;
  77
  78     // Save the state of the scroll in browsing
  79     private ArrayList<Integer> mIndexes;
  80     private ArrayList<Integer> mFirstPositions;
  81     private ArrayList<Integer> mTops;
  82
  83     private int mHeightCell = 0;
  84
  85     /**
  86      * {@inheritDoc}
  87      */
  88     @Override
  89     public void onAttach(Activity activity) {
  90         super.onAttach(activity);
  91         Log_OC.e(TAG, "onAttach");
  92         try {
  93             mContainerActivity = (FileFragment.ContainerActivity) activity;
  94         } catch (ClassCastException e) {
  95             throw new ClassCastException(activity.toString() + " must implement " +
  96                     FileFragment.ContainerActivity.class.getSimpleName());
  97         }
  98     }
  99
 100
 101     @Override
 102     public void onDetach() {
 103         mContainerActivity = null;
 104         super.onDetach();
 105     }
 106
 107     /**
 108      * {@inheritDoc}
 109      */
 110     @Override
 111     public void onActivityCreated(Bundle savedInstanceState) {
 112         super.onActivityCreated(savedInstanceState);
 113         Log_OC.e(TAG, "onActivityCreated() start");
 114         mAdapter = new FileListListAdapter(getSherlockActivity(), mContainerActivity);
 115
 116         if (savedInstanceState != null) {
 117             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 118             mIndexes = savedInstanceState.getIntegerArrayList(KEY_INDEXES);
 119             mFirstPositions = savedInstanceState.getIntegerArrayList(KEY_FIRST_POSITIONS);
 120             mTops = savedInstanceState.getIntegerArrayList(KEY_TOPS);
 121             mHeightCell = savedInstanceState.getInt(KEY_HEIGHT_CELL);
 122
 123         } else {
 124             mIndexes = new ArrayList<Integer>();
 125             mFirstPositions = new ArrayList<Integer>();
 126             mTops = new ArrayList<Integer>();
 127             mHeightCell = 0;
 128
 129         }
 130
 131         mAdapter = new FileListListAdapter(getSherlockActivity(), mContainerActivity);
 132
 133         setListAdapter(mAdapter);
 134
 135         registerForContextMenu(getListView());
 136         getListView().setOnCreateContextMenuListener(this);
 137
 138  //       mHandler = new Handler();
 139   }
 140
 141     /**
 142      * Saves the current listed folder.
 143      */
 144     @Override
 145     public void onSaveInstanceState (Bundle outState) {
 146         super.onSaveInstanceState(outState);
 147         outState.putParcelable(EXTRA_FILE, mFile);
 148         outState.putIntegerArrayList(KEY_INDEXES, mIndexes);
 149         outState.putIntegerArrayList(KEY_FIRST_POSITIONS, mFirstPositions);
 150         outState.putIntegerArrayList(KEY_TOPS, mTops);
 151         outState.putInt(KEY_HEIGHT_CELL, mHeightCell);
 152     }
 153
 154     /**
 155      * Call this, when the user presses the up button.
 156      *
 157      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 158      * it continues browsing up until finding an existing folders.
 159      *
 160      * return       Count of folder levels browsed up.
 161      */
 162     public int onBrowseUp() {
 163         OCFile parentDir = null;
 164         int moveCount = 0;
 165
 166         if(mFile != null){
 167             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 168
 169             String parentPath = null;
 170             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 171                 parentPath = new File(mFile.getRemotePath()).getParent();
 172                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 173                 parentDir = storageManager.getFileByPath(parentPath);
 174                 moveCount++;
 175             } else {
 176                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);    // never returns null; keep the path in root folder
 177             }
 178             while (parentDir == null) {
 179                 parentPath = new File(parentPath).getParent();
 180                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 181                 parentDir = storageManager.getFileByPath(parentPath);
 182                 moveCount++;
 183             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 184             mFile = parentDir;
 185         }
 186
 187         if (mFile != null) {
 188             listDirectory(mFile);
 189
 190             ((FileDisplayActivity)mContainerActivity).startSyncFolderOperation(mFile);
 191
 192             // restore index and top position
 193             restoreIndexAndTopPosition();
 194
 195         }   // else - should never happen now
 196
 197         return moveCount;
 198     }
 199
 200     /*
 201      * Restore index and position
 202      */
 203     private void restoreIndexAndTopPosition() {
 204         if (mIndexes.size() > 0) {
 205             // needs to be checked; not every browse-up had a browse-down before
 206
 207             int index = mIndexes.remove(mIndexes.size() - 1);
 208
 209             int firstPosition = mFirstPositions.remove(mFirstPositions.size() -1);
 210
 211             int top = mTops.remove(mTops.size() - 1);
 212
 213             mList.setSelectionFromTop(firstPosition, top);
 214
 215             // Move the scroll if the selection is not visible
 216             int indexPosition = mHeightCell*index;
 217             int height = mList.getHeight();
 218
 219             if (indexPosition > height) {
 220                 if (android.os.Build.VERSION.SDK_INT >= 11)
 221                 {
 222                     mList.smoothScrollToPosition(index);
 223                 }
 224                 else if (android.os.Build.VERSION.SDK_INT >= 8)
 225                 {
 226                     mList.setSelectionFromTop(index, 0);
 227                 }
 228
 229             }
 230         }
 231     }
 232
 233     /*
 234      * Save index and top position
 235      */
 236     private void saveIndexAndTopPosition(int index) {
 237
 238         mIndexes.add(index);
 239
 240         int firstPosition = mList.getFirstVisiblePosition();
 241         mFirstPositions.add(firstPosition);
 242
 243         View view = mList.getChildAt(0);
 244         int top = (view == null) ? 0 : view.getTop() ;
 245
 246         mTops.add(top);
 247
 248         // Save the height of a cell
 249         mHeightCell = (view == null || mHeightCell != 0) ? mHeightCell : view.getHeight();
 250     }
 251
 252     @Override
 253     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 254         OCFile file = (OCFile) mAdapter.getItem(position);
 255         if (file != null) {
 256             if (file.isFolder()) {
 257                 // update state and view of this fragment
 258                 listDirectory(file);
 259                 // then, notify parent activity to let it update its state and view, and other fragments
 260                 mContainerActivity.onBrowsedDownTo(file);
 261                 // save index and top position
 262                 saveIndexAndTopPosition(position);
 263
 264             } else { /// Click on a file
 265                 if (PreviewImageFragment.canBePreviewed(file)) {
 266                     // preview image - it handles the download, if needed
 267                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 268
 269                 } else if (file.isDown()) {
 270                     if (PreviewMediaFragment.canBePreviewed(file)) {
 271                         // media preview
 272                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 273                     } else {
 274                         ((FileDisplayActivity)mContainerActivity).getFileOperationsHelper().openFile(file);
 275                     }
 276
 277                 } else {
 278                     // automatic download, preview on finish
 279                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 280                 }
 281
 282             }
 283
 284         } else {
 285             Log_OC.d(TAG, "Null object in ListAdapter!!");
 286         }
 287
 288     }
 289
 290     /**
 291      * {@inheritDoc}
 292      */
 293     @Override
 294     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 295         super.onCreateContextMenu(menu, v, menuInfo);
 296         MenuInflater inflater = getSherlockActivity().getMenuInflater();
 297         inflater.inflate(R.menu.file_actions_menu, menu);
 298         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 299         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 300         List<Integer> toHide = new ArrayList<Integer>();
 301         List<Integer> toDisable = new ArrayList<Integer>();
 302
 303         MenuItem item = null;
 304         if (targetFile.isFolder()) {
 305             // contextual menu for folders
 306             toHide.add(R.id.action_open_file_with);
 307             toHide.add(R.id.action_download_file);
 308             toHide.add(R.id.action_cancel_download);
 309             toHide.add(R.id.action_cancel_upload);
 310             toHide.add(R.id.action_sync_file);
 311             toHide.add(R.id.action_see_details);
 312             toHide.add(R.id.action_send_file);
 313             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), targetFile) ||
 314                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), targetFile)           ) {
 315                 toDisable.add(R.id.action_rename_file);
 316                 toDisable.add(R.id.action_remove_file);
 317
 318             }
 319
 320         } else {
 321             // contextual menu for regular files
 322
 323             // new design: 'download' and 'open with' won't be available anymore in context menu
 324             toHide.add(R.id.action_download_file);
 325             toHide.add(R.id.action_open_file_with);
 326
 327             if (targetFile.isDown()) {
 328                 toHide.add(R.id.action_cancel_download);
 329                 toHide.add(R.id.action_cancel_upload);
 330
 331             } else {
 332                 toHide.add(R.id.action_sync_file);
 333             }
 334             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), targetFile)) {
 335                 toHide.add(R.id.action_cancel_upload);
 336                 toDisable.add(R.id.action_rename_file);
 337                 toDisable.add(R.id.action_remove_file);
 338
 339             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), targetFile)) {
 340                 toHide.add(R.id.action_cancel_download);
 341                 toDisable.add(R.id.action_rename_file);
 342                 toDisable.add(R.id.action_remove_file);
 343
 344             } else {
 345                 toHide.add(R.id.action_cancel_download);
 346                 toHide.add(R.id.action_cancel_upload);
 347             }
 348         }
 349
 350         // Options shareLink
 351         if (!targetFile.isShareByLink()) {
 352             toHide.add(R.id.action_unshare_file);
 353         }
 354
 355         // Send file
 356         boolean sendEnabled = getString(R.string.send_files_to_other_apps).equalsIgnoreCase("on");
 357         if (!sendEnabled) {
 358             toHide.add(R.id.action_send_file);
 359         }
 360
 361         for (int i : toHide) {
 362             item = menu.findItem(i);
 363             if (item != null) {
 364                 item.setVisible(false);
 365                 item.setEnabled(false);
 366             }
 367         }
 368
 369         for (int i : toDisable) {
 370             item = menu.findItem(i);
 371             if (item != null) {
 372                 item.setEnabled(false);
 373             }
 374         }
 375     }
 376
 377
 378     /**
 379      * {@inhericDoc}
 380      */
 381     @Override
 382     public boolean onContextItemSelected (MenuItem item) {
 383         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 384         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 385         switch (item.getItemId()) {
 386             case R.id.action_share_file: {
 387                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 388                 return true;
 389             }
 390             case R.id.action_unshare_file: {
 391                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 392                 return true;
 393             }
 394             case R.id.action_rename_file: {
 395                 String fileName = mTargetFile.getFileName();
 396                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 397                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 398                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 399                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 400                 return true;
 401             }
 402             case R.id.action_remove_file: {
 403                 int messageStringId = R.string.confirmation_remove_alert;
 404                 int posBtnStringId = R.string.confirmation_remove_remote;
 405                 int neuBtnStringId = -1;
 406                 if (mTargetFile.isFolder()) {
 407                     messageStringId = R.string.confirmation_remove_folder_alert;
 408                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 409                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 410                 } else if (mTargetFile.isDown()) {
 411                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 412                     neuBtnStringId = R.string.confirmation_remove_local;
 413                 }
 414                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 415                         messageStringId,
 416                         new String[]{mTargetFile.getFileName()},
 417                         posBtnStringId,
 418                         neuBtnStringId,
 419                         R.string.common_cancel);
 420                 confDialog.setOnConfirmationListener(this);
 421                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 422                 return true;
 423             }
 424             case R.id.action_sync_file: {
 425                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 426                 return true;
 427             }
 428             case R.id.action_cancel_download: {
 429                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 430                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 431                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 432                     downloaderBinder.cancel(account, mTargetFile);
 433                     listDirectory();
 434                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 435                 }
 436                 return true;
 437             }
 438             case R.id.action_cancel_upload: {
 439                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 440                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 441                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 442                     uploaderBinder.cancel(account, mTargetFile);
 443                     listDirectory();
 444                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 445                 }
 446                 return true;
 447             }
 448             case R.id.action_see_details: {
 449                 mContainerActivity.showDetails(mTargetFile);
 450                 return true;
 451             }
 452             case R.id.action_send_file: {
 453                 // Obtain the file
 454                 if (!mTargetFile.isDown()) {  // Download the file
 455                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 456                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 457
 458                 } else {
 459                     ((FileDisplayActivity)mContainerActivity).getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 460                 }
 461                 return true;
 462             }
 463             default:
 464                 return super.onContextItemSelected(item);
 465         }
 466     }
 467
 468
 469     /**
 470      * Use this to query the {@link OCFile} that is currently
 471      * being displayed by this fragment
 472      * @return The currently viewed OCFile
 473      */
 474     public OCFile getCurrentFile(){
 475         return mFile;
 476     }
 477
 478     /**
 479      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 480      */
 481     public void listDirectory(){
 482         listDirectory(null);
 483     }
 484
 485     /**
 486      * Lists the given directory on the view. When the input parameter is null,
 487      * it will either refresh the last known directory. list the root
 488      * if there never was a directory.
 489      *
 490      * @param directory File to be listed
 491      */
 492     public void listDirectory(OCFile directory) {
 493         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 494         if (storageManager != null) {
 495
 496             // Check input parameters for null
 497             if(directory == null){
 498                 if(mFile != null){
 499                     directory = mFile;
 500                 } else {
 501                     directory = storageManager.getFileByPath("/");
 502                     if (directory == null) return; // no files, wait for sync
 503                 }
 504             }
 505
 506
 507             // If that's not a directory -> List its parent
 508             if(!directory.isFolder()){
 509                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 510                 directory = storageManager.getFileById(directory.getParentId());
 511             }
 512
 513             mAdapter.swapDirectory(directory, storageManager);
 514             if (mFile == null || !mFile.equals(directory)) {
 515                 mList.setSelectionFromTop(0, 0);
 516             }
 517             mFile = directory;
 518         }
 519     }
 520
 521
 522
 523     @Override
 524     public void onDismiss(EditNameDialog dialog) {
 525         if (dialog.getResult()) {
 526             String newFilename = dialog.getNewFilename();
 527             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 528             mContainerActivity.getFileOperationsHelper().renameFile(mTargetFile, newFilename);
 529         }
 530     }
 531
 532
 533     @Override
 534     public void onConfirmation(String callerTag) {
 535         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 536             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 537             if (storageManager.getFileById(mTargetFile.getFileId()) != null) {
 538                 mContainerActivity.getFileOperationsHelper().removeFile(mTargetFile, true);
 539             }
 540         }
 541     }
 542
 543     @Override
 544     public void onNeutral(String callerTag) {
 545         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 546         listDirectory();
 547         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 548     }
 549
 550     @Override
 551     public void onCancel(String callerTag) {
 552         Log_OC.d(TAG, "REMOVAL CANCELED");
 553     }
 554
 555 }