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.database.Cursor;
  43 import android.os.Bundle;
  44 import android.view.ContextMenu;
  45 import android.view.MenuInflater;
  46 import android.view.MenuItem;
  47 import android.view.View;
  48 import android.widget.AdapterView;
  49 import android.widget.AdapterView.AdapterContextMenuInfo;
  50
  51 /**
  52  * A Fragment that lists all files and folders in a given path.
  53  *
  54  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  55  *
  56  * @author Bartek Przybylski
  57  * @author masensio
  58  * @author David A. Velasco
  59  */
  60 public class OCFileListFragment extends ExtendedListFragment implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  61
  62     private static final String TAG = OCFileListFragment.class.getSimpleName();
  63
  64     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ? OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  65     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  66
  67     private static final String KEY_INDEXES = "INDEXES";
  68     private static final String KEY_FIRST_POSITIONS= "FIRST_POSITIONS";
  69     private static final String KEY_TOPS = "TOPS";
  70     private static final String KEY_HEIGHT_CELL = "HEIGHT_CELL";
  71
  72     private FileFragment.ContainerActivity mContainerActivity;
  73
  74     private OCFile mFile = null;
  75     private FileListListAdapter mAdapter;
  76
  77     private OCFile mTargetFile;
  78
  79     // Save the state of the scroll in browsing
  80     private ArrayList<Integer> mIndexes;
  81     private ArrayList<Integer> mFirstPositions;
  82     private ArrayList<Integer> mTops;
  83
  84     private int mHeightCell = 0;
  85
  86     /**
  87      * {@inheritDoc}
  88      */
  89     @Override
  90     public void onAttach(Activity activity) {
  91         super.onAttach(activity);
  92         Log_OC.e(TAG, "onAttach");
  93         try {
  94             mContainerActivity = (FileFragment.ContainerActivity) activity;
  95         } catch (ClassCastException e) {
  96             throw new ClassCastException(activity.toString() + " must implement " +
  97                     FileFragment.ContainerActivity.class.getSimpleName());
  98         }
  99     }
 100
 101
 102     @Override
 103     public void onDetach() {
 104         mContainerActivity = null;
 105         super.onDetach();
 106     }
 107
 108     /**
 109      * {@inheritDoc}
 110      */
 111     @Override
 112     public void onActivityCreated(Bundle savedInstanceState) {
 113         super.onActivityCreated(savedInstanceState);
 114         Log_OC.e(TAG, "onActivityCreated() start");
 115
 116         mAdapter = new FileListListAdapter(getSherlockActivity(), mContainerActivity);
 117
 118         if (savedInstanceState != null) {
 119             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 120             mIndexes = savedInstanceState.getIntegerArrayList(KEY_INDEXES);
 121             mFirstPositions = savedInstanceState.getIntegerArrayList(KEY_FIRST_POSITIONS);
 122             mTops = savedInstanceState.getIntegerArrayList(KEY_TOPS);
 123             mHeightCell = savedInstanceState.getInt(KEY_HEIGHT_CELL);
 124
 125         } else {
 126             mIndexes = new ArrayList<Integer>();
 127             mFirstPositions = new ArrayList<Integer>();
 128             mTops = new ArrayList<Integer>();
 129             mHeightCell = 0;
 130
 131         }
 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 = mContainerActivity.getStorageManager().createFileInstance(
 255                 (Cursor) mAdapter.getItem(position));
 256         if (file != null) {
 257             if (file.isFolder()) {
 258                 // update state and view of this fragment
 259                 listDirectory(file);
 260                 // then, notify parent activity to let it update its state and view, and other fragments
 261                 mContainerActivity.onBrowsedDownTo(file);
 262                 // save index and top position
 263                 saveIndexAndTopPosition(position);
 264
 265             } else { /// Click on a file
 266                 if (PreviewImageFragment.canBePreviewed(file)) {
 267                     // preview image - it handles the download, if needed
 268                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 269
 270                 } else if (file.isDown()) {
 271                     if (PreviewMediaFragment.canBePreviewed(file)) {
 272                         // media preview
 273                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 274                     } else {
 275                         ((FileDisplayActivity)mContainerActivity).getFileOperationsHelper().openFile(file);
 276                     }
 277
 278                 } else {
 279                     // automatic download, preview on finish
 280                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 281                 }
 282
 283             }
 284
 285         } else {
 286             Log_OC.d(TAG, "Null object in ListAdapter!!");
 287         }
 288
 289     }
 290
 291     /**
 292      * {@inheritDoc}
 293      */
 294     @Override
 295     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 296         super.onCreateContextMenu(menu, v, menuInfo);
 297         MenuInflater inflater = getSherlockActivity().getMenuInflater();
 298         inflater.inflate(R.menu.file_actions_menu, menu);
 299         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 300         OCFile targetFile = mContainerActivity.getStorageManager().createFileInstance(
 301                 (Cursor) mAdapter.getItem(info.position));
 302         List<Integer> toHide = new ArrayList<Integer>();
 303         List<Integer> toDisable = new ArrayList<Integer>();
 304
 305         MenuItem item = null;
 306         if (targetFile.isFolder()) {
 307             // contextual menu for folders
 308             toHide.add(R.id.action_open_file_with);
 309             toHide.add(R.id.action_download_file);
 310             toHide.add(R.id.action_cancel_download);
 311             toHide.add(R.id.action_cancel_upload);
 312             toHide.add(R.id.action_sync_file);
 313             toHide.add(R.id.action_see_details);
 314             toHide.add(R.id.action_send_file);
 315             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), targetFile) ||
 316                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), targetFile)           ) {
 317                 toDisable.add(R.id.action_rename_file);
 318                 toDisable.add(R.id.action_remove_file);
 319
 320             }
 321
 322         } else {
 323             // contextual menu for regular files
 324
 325             // new design: 'download' and 'open with' won't be available anymore in context menu
 326             toHide.add(R.id.action_download_file);
 327             toHide.add(R.id.action_open_file_with);
 328
 329             if (targetFile.isDown()) {
 330                 toHide.add(R.id.action_cancel_download);
 331                 toHide.add(R.id.action_cancel_upload);
 332
 333             } else {
 334                 toHide.add(R.id.action_sync_file);
 335             }
 336             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), targetFile)) {
 337                 toHide.add(R.id.action_cancel_upload);
 338                 toDisable.add(R.id.action_rename_file);
 339                 toDisable.add(R.id.action_remove_file);
 340
 341             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), targetFile)) {
 342                 toHide.add(R.id.action_cancel_download);
 343                 toDisable.add(R.id.action_rename_file);
 344                 toDisable.add(R.id.action_remove_file);
 345
 346             } else {
 347                 toHide.add(R.id.action_cancel_download);
 348                 toHide.add(R.id.action_cancel_upload);
 349             }
 350         }
 351
 352         // Options shareLink
 353         if (!targetFile.isShareByLink()) {
 354             toHide.add(R.id.action_unshare_file);
 355         }
 356
 357         // Send file
 358         boolean sendEnabled = getString(R.string.send_files_to_other_apps).equalsIgnoreCase("on");
 359         if (!sendEnabled) {
 360             toHide.add(R.id.action_send_file);
 361         }
 362
 363         for (int i : toHide) {
 364             item = menu.findItem(i);
 365             if (item != null) {
 366                 item.setVisible(false);
 367                 item.setEnabled(false);
 368             }
 369         }
 370
 371         for (int i : toDisable) {
 372             item = menu.findItem(i);
 373             if (item != null) {
 374                 item.setEnabled(false);
 375             }
 376         }
 377     }
 378
 379
 380     /**
 381      * {@inhericDoc}
 382      */
 383     @Override
 384     public boolean onContextItemSelected (MenuItem item) {
 385         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 386         mTargetFile = mContainerActivity.getStorageManager().createFileInstance(
 387                 (Cursor) mAdapter.getItem(info.position));
 388         switch (item.getItemId()) {
 389             case R.id.action_share_file: {
 390                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 391                 return true;
 392             }
 393             case R.id.action_unshare_file: {
 394                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 395                 return true;
 396             }
 397             case R.id.action_rename_file: {
 398                 String fileName = mTargetFile.getFileName();
 399                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 400                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 401                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 402                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 403                 return true;
 404             }
 405             case R.id.action_remove_file: {
 406                 int messageStringId = R.string.confirmation_remove_alert;
 407                 int posBtnStringId = R.string.confirmation_remove_remote;
 408                 int neuBtnStringId = -1;
 409                 if (mTargetFile.isFolder()) {
 410                     messageStringId = R.string.confirmation_remove_folder_alert;
 411                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 412                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 413                 } else if (mTargetFile.isDown()) {
 414                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 415                     neuBtnStringId = R.string.confirmation_remove_local;
 416                 }
 417                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 418                         messageStringId,
 419                         new String[]{mTargetFile.getFileName()},
 420                         posBtnStringId,
 421                         neuBtnStringId,
 422                         R.string.common_cancel);
 423                 confDialog.setOnConfirmationListener(this);
 424                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 425                 return true;
 426             }
 427             case R.id.action_sync_file: {
 428                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 429                 return true;
 430             }
 431             case R.id.action_cancel_download: {
 432                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 433                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 434                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 435                     downloaderBinder.cancel(account, mTargetFile);
 436                     listDirectory();
 437                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 438                 }
 439                 return true;
 440             }
 441             case R.id.action_cancel_upload: {
 442                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 443                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 444                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 445                     uploaderBinder.cancel(account, mTargetFile);
 446                     listDirectory();
 447                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 448                 }
 449                 return true;
 450             }
 451             case R.id.action_see_details: {
 452                 mContainerActivity.showDetails(mTargetFile);
 453                 return true;
 454             }
 455             case R.id.action_send_file: {
 456                 // Obtain the file
 457                 if (!mTargetFile.isDown()) {  // Download the file
 458                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 459                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 460
 461                 } else {
 462                     ((FileDisplayActivity)mContainerActivity).getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 463                 }
 464                 return true;
 465             }
 466             default:
 467                 return super.onContextItemSelected(item);
 468         }
 469     }
 470
 471
 472     /**
 473      * Use this to query the {@link OCFile} that is currently
 474      * being displayed by this fragment
 475      * @return The currently viewed OCFile
 476      */
 477     public OCFile getCurrentFile(){
 478         return mFile;
 479     }
 480
 481     /**
 482      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 483      */
 484     public void listDirectory(){
 485         listDirectory(null);
 486     }
 487
 488     /**
 489      * Lists the given directory on the view. When the input parameter is null,
 490      * it will either refresh the last known directory. list the root
 491      * if there never was a directory.
 492      *
 493      * @param directory File to be listed
 494      */
 495     public void listDirectory(OCFile directory) {
 496         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 497         if (storageManager != null) {
 498
 499             // Check input parameters for null
 500             if(directory == null){
 501                 if(mFile != null){
 502                     directory = mFile;
 503                 } else {
 504                     directory = storageManager.getFileByPath("/");
 505                     if (directory == null) return; // no files, wait for sync
 506                 }
 507             }
 508
 509
 510             // If that's not a directory -> List its parent
 511             if(!directory.isFolder()){
 512                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 513                 directory = storageManager.getFileById(directory.getParentId());
 514             }
 515
 516             mAdapter.swapDirectory(directory, storageManager);
 517             if (mFile == null || !mFile.equals(directory)) {
 518                 mList.setSelectionFromTop(0, 0);
 519             }
 520             mFile = directory;
 521         }
 522     }
 523
 524
 525
 526     @Override
 527     public void onDismiss(EditNameDialog dialog) {
 528         if (dialog.getResult()) {
 529             String newFilename = dialog.getNewFilename();
 530             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 531             mContainerActivity.getFileOperationsHelper().renameFile(mTargetFile, newFilename);
 532         }
 533     }
 534
 535
 536     @Override
 537     public void onConfirmation(String callerTag) {
 538         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 539             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 540             if (storageManager.getFileById(mTargetFile.getFileId()) != null) {
 541                 mContainerActivity.getFileOperationsHelper().removeFile(mTargetFile, true);
 542             }
 543         }
 544     }
 545
 546     @Override
 547     public void onNeutral(String callerTag) {
 548         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 549         listDirectory();
 550         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 551     }
 552
 553     @Override
 554     public void onCancel(String callerTag) {
 555         Log_OC.d(TAG, "REMOVAL CANCELED");
 556     }
 557
 558 }