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
  23 import com.owncloud.android.R;
  24 import com.owncloud.android.authentication.AccountUtils;
  25 import com.owncloud.android.datamodel.FileDataStorageManager;
  26 import com.owncloud.android.datamodel.OCFile;
  27 import com.owncloud.android.files.FileMenuFilter;
  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
  60 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         mAdapter = new FileListListAdapter(getSherlockActivity(), mContainerActivity);
 116
 117         if (savedInstanceState != null) {
 118             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 119             mIndexes = savedInstanceState.getIntegerArrayList(KEY_INDEXES);
 120             mFirstPositions = savedInstanceState.getIntegerArrayList(KEY_FIRST_POSITIONS);
 121             mTops = savedInstanceState.getIntegerArrayList(KEY_TOPS);
 122             mHeightCell = savedInstanceState.getInt(KEY_HEIGHT_CELL);
 123
 124         } else {
 125             mIndexes = new ArrayList<Integer>();
 126             mFirstPositions = new ArrayList<Integer>();
 127             mTops = new ArrayList<Integer>();
 128             mHeightCell = 0;
 129
 130         }
 131
 132         mAdapter = new FileListListAdapter(getSherlockActivity(), mContainerActivity);
 133
 134         setListAdapter(mAdapter);
 135
 136         registerForContextMenu(getListView());
 137         getListView().setOnCreateContextMenuListener(this);
 138
 139  //       mHandler = new Handler();
 140   }
 141
 142     /**
 143      * Saves the current listed folder.
 144      */
 145     @Override
 146     public void onSaveInstanceState (Bundle outState) {
 147         super.onSaveInstanceState(outState);
 148         outState.putParcelable(EXTRA_FILE, mFile);
 149         outState.putIntegerArrayList(KEY_INDEXES, mIndexes);
 150         outState.putIntegerArrayList(KEY_FIRST_POSITIONS, mFirstPositions);
 151         outState.putIntegerArrayList(KEY_TOPS, mTops);
 152         outState.putInt(KEY_HEIGHT_CELL, mHeightCell);
 153     }
 154
 155     /**
 156      * Call this, when the user presses the up button.
 157      *
 158      * Tries to move up the current folder one level. If the parent folder was removed from the database,
 159      * it continues browsing up until finding an existing folders.
 160      *
 161      * return       Count of folder levels browsed up.
 162      */
 163     public int onBrowseUp() {
 164         OCFile parentDir = null;
 165         int moveCount = 0;
 166
 167         if(mFile != null){
 168             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 169
 170             String parentPath = null;
 171             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 172                 parentPath = new File(mFile.getRemotePath()).getParent();
 173                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 174                 parentDir = storageManager.getFileByPath(parentPath);
 175                 moveCount++;
 176             } else {
 177                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);    // never returns null; keep the path in root folder
 178             }
 179             while (parentDir == null) {
 180                 parentPath = new File(parentPath).getParent();
 181                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 182                 parentDir = storageManager.getFileByPath(parentPath);
 183                 moveCount++;
 184             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 185             mFile = parentDir;
 186         }
 187
 188         if (mFile != null) {
 189             listDirectory(mFile);
 190
 191             ((FileDisplayActivity)mContainerActivity).startSyncFolderOperation(mFile);
 192
 193             // restore index and top position
 194             restoreIndexAndTopPosition();
 195
 196         }   // else - should never happen now
 197
 198         return moveCount;
 199     }
 200
 201     /*
 202      * Restore index and position
 203      */
 204     private void restoreIndexAndTopPosition() {
 205         if (mIndexes.size() > 0) {
 206             // needs to be checked; not every browse-up had a browse-down before
 207
 208             int index = mIndexes.remove(mIndexes.size() - 1);
 209
 210             int firstPosition = mFirstPositions.remove(mFirstPositions.size() -1);
 211
 212             int top = mTops.remove(mTops.size() - 1);
 213
 214             mList.setSelectionFromTop(firstPosition, top);
 215
 216             // Move the scroll if the selection is not visible
 217             int indexPosition = mHeightCell*index;
 218             int height = mList.getHeight();
 219
 220             if (indexPosition > height) {
 221                 if (android.os.Build.VERSION.SDK_INT >= 11)
 222                 {
 223                     mList.smoothScrollToPosition(index);
 224                 }
 225                 else if (android.os.Build.VERSION.SDK_INT >= 8)
 226                 {
 227                     mList.setSelectionFromTop(index, 0);
 228                 }
 229
 230             }
 231         }
 232     }
 233
 234     /*
 235      * Save index and top position
 236      */
 237     private void saveIndexAndTopPosition(int index) {
 238
 239         mIndexes.add(index);
 240
 241         int firstPosition = mList.getFirstVisiblePosition();
 242         mFirstPositions.add(firstPosition);
 243
 244         View view = mList.getChildAt(0);
 245         int top = (view == null) ? 0 : view.getTop() ;
 246
 247         mTops.add(top);
 248
 249         // Save the height of a cell
 250         mHeightCell = (view == null || mHeightCell != 0) ? mHeightCell : view.getHeight();
 251     }
 252
 253     @Override
 254     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 255         OCFile file = (OCFile) 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                         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 = (OCFile) mAdapter.getItem(info.position);
 301
 302         FileMenuFilter mf = new FileMenuFilter();
 303         mf.setFile(targetFile);
 304         mf.setComponentGetter(mContainerActivity);
 305         mf.setAccount(mContainerActivity.getStorageManager().getAccount());
 306         mf.setContext(getSherlockActivity());
 307         mf.setFragment(this);
 308         mf.filter(menu);
 309     }
 310
 311
 312     /**
 313      * {@inhericDoc}
 314      */
 315     @Override
 316     public boolean onContextItemSelected (MenuItem item) {
 317         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 318         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 319         switch (item.getItemId()) {
 320             case R.id.action_share_file: {
 321                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 322                 return true;
 323             }
 324             case R.id.action_unshare_file: {
 325                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 326                 return true;
 327             }
 328             case R.id.action_rename_file: {
 329                 String fileName = mTargetFile.getFileName();
 330                 int extensionStart = mTargetFile.isFolder() ? -1 : fileName.lastIndexOf(".");
 331                 int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 332                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 333                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 334                 return true;
 335             }
 336             case R.id.action_remove_file: {
 337                 int messageStringId = R.string.confirmation_remove_alert;
 338                 int posBtnStringId = R.string.confirmation_remove_remote;
 339                 int neuBtnStringId = -1;
 340                 if (mTargetFile.isFolder()) {
 341                     messageStringId = R.string.confirmation_remove_folder_alert;
 342                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 343                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 344                 } else if (mTargetFile.isDown()) {
 345                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 346                     neuBtnStringId = R.string.confirmation_remove_local;
 347                 }
 348                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 349                         messageStringId,
 350                         new String[]{mTargetFile.getFileName()},
 351                         posBtnStringId,
 352                         neuBtnStringId,
 353                         R.string.common_cancel);
 354                 confDialog.setOnConfirmationListener(this);
 355                 confDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 356                 return true;
 357             }
 358             case R.id.action_sync_file: {
 359                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 360                 return true;
 361             }
 362             case R.id.action_cancel_download: {
 363                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 364                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 365                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 366                     downloaderBinder.cancel(account, mTargetFile);
 367                     listDirectory();
 368                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 369                 }
 370                 return true;
 371             }
 372             case R.id.action_cancel_upload: {
 373                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 374                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 375                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 376                     uploaderBinder.cancel(account, mTargetFile);
 377                     listDirectory();
 378                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 379                 }
 380                 return true;
 381             }
 382             case R.id.action_see_details: {
 383                 mContainerActivity.showDetails(mTargetFile);
 384                 return true;
 385             }
 386             case R.id.action_send_file: {
 387                 // Obtain the file
 388                 if (!mTargetFile.isDown()) {  // Download the file
 389                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 390                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 391
 392                 } else {
 393                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 394                 }
 395                 return true;
 396             }
 397             default:
 398                 return super.onContextItemSelected(item);
 399         }
 400     }
 401
 402
 403     /**
 404      * Use this to query the {@link OCFile} that is currently
 405      * being displayed by this fragment
 406      * @return The currently viewed OCFile
 407      */
 408     public OCFile getCurrentFile(){
 409         return mFile;
 410     }
 411
 412     /**
 413      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 414      */
 415     public void listDirectory(){
 416         listDirectory(null);
 417     }
 418
 419     /**
 420      * Lists the given directory on the view. When the input parameter is null,
 421      * it will either refresh the last known directory. list the root
 422      * if there never was a directory.
 423      *
 424      * @param directory File to be listed
 425      */
 426     public void listDirectory(OCFile directory) {
 427         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 428         if (storageManager != null) {
 429
 430             // Check input parameters for null
 431             if(directory == null){
 432                 if(mFile != null){
 433                     directory = mFile;
 434                 } else {
 435                     directory = storageManager.getFileByPath("/");
 436                     if (directory == null) return; // no files, wait for sync
 437                 }
 438             }
 439
 440
 441             // If that's not a directory -> List its parent
 442             if(!directory.isFolder()){
 443                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 444                 directory = storageManager.getFileById(directory.getParentId());
 445             }
 446
 447             mAdapter.swapDirectory(directory, storageManager);
 448             if (mFile == null || !mFile.equals(directory)) {
 449                 mList.setSelectionFromTop(0, 0);
 450             }
 451             mFile = directory;
 452         }
 453     }
 454
 455
 456
 457     @Override
 458     public void onDismiss(EditNameDialog dialog) {
 459         if (dialog.getResult()) {
 460             String newFilename = dialog.getNewFilename();
 461             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 462             mContainerActivity.getFileOperationsHelper().renameFile(mTargetFile, newFilename);
 463         }
 464     }
 465
 466
 467     @Override
 468     public void onConfirmation(String callerTag) {
 469         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 470             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 471             if (storageManager.getFileById(mTargetFile.getFileId()) != null) {
 472                 mContainerActivity.getFileOperationsHelper().removeFile(mTargetFile, true);
 473             }
 474         }
 475     }
 476
 477     @Override
 478     public void onNeutral(String callerTag) {
 479         mContainerActivity.getStorageManager().removeFile(mTargetFile, false, true);    // TODO perform in background task / new thread
 480         listDirectory();
 481         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 482     }
 483
 484     @Override
 485     public void onCancel(String callerTag) {
 486         Log_OC.d(TAG, "REMOVAL CANCELED");
 487     }
 488
 489 }