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
  22 import android.accounts.Account;
  23 import android.app.Activity;
  24 import android.content.Intent;
  25 import android.media.MediaScannerConnection;
  26 import android.os.Bundle;
  27 import android.os.Handler;
  28 import android.support.v4.widget.SwipeRefreshLayout;
  29 import android.view.ContextMenu;
  30 import android.view.MenuInflater;
  31 import android.view.MenuItem;
  32 import android.view.View;
  33 import android.widget.AdapterView;
  34 import android.widget.AdapterView.AdapterContextMenuInfo;
  35
  36 import com.owncloud.android.R;
  37 import com.owncloud.android.authentication.AccountUtils;
  38 import com.owncloud.android.datamodel.FileDataStorageManager;
  39 import com.owncloud.android.datamodel.OCFile;
  40 import com.owncloud.android.files.FileMenuFilter;
  41 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  42 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  43 import com.owncloud.android.lib.common.utils.Log_OC;
  44 import com.owncloud.android.operations.RemoveFileOperation;
  45 import com.owncloud.android.operations.RenameFileOperation;
  46 import com.owncloud.android.ui.activity.FileDisplayActivity;
  47 import com.owncloud.android.ui.activity.MoveActivity;
  48 import com.owncloud.android.ui.activity.OnEnforceableRefreshListener;
  49 import com.owncloud.android.ui.adapter.FileListListAdapter;
  50 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  51 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  52 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  53 import com.owncloud.android.ui.preview.PreviewImageFragment;
  54 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  55
  56 /**
  57  * A Fragment that lists all files and folders in a given path.
  58  *
  59  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  60  *
  61  * @author Bartek Przybylski
  62  * @author masensio
  63  * @author David A. Velasco
  64  */
  65 public class OCFileListFragment extends ExtendedListFragment {
  66
  67     private static final String TAG = OCFileListFragment.class.getSimpleName();
  68
  69     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  70             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  71
  72     public final static String ARG_JUST_FOLDERS = MY_PACKAGE + ".JUST_FOLDERS";
  73     public final static String ARG_ALLOW_CONTEXTUAL_ACTIONS = MY_PACKAGE + ".ALLOW_CONTEXTUAL";
  74
  75     private static final String KEY_FILE = MY_PACKAGE + ".extra.FILE";
  76
  77     private FileFragment.ContainerActivity mContainerActivity;
  78
  79     private OCFile mFile = null;
  80     private FileListListAdapter mAdapter;
  81
  82     private Handler mHandler;
  83     private OCFile mTargetFile;
  84
  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
  96         } catch (ClassCastException e) {
  97             throw new ClassCastException(activity.toString() + " must implement " +
  98                     FileFragment.ContainerActivity.class.getSimpleName());
  99         }
 100         try {
 101             setOnRefreshListener((OnEnforceableRefreshListener) activity);
 102
 103         } catch (ClassCastException e) {
 104             throw new ClassCastException(activity.toString() + " must implement " +
 105                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
 106         }
 107     }
 108
 109
 110     @Override
 111     public void onDetach() {
 112         setOnRefreshListener(null);
 113         mContainerActivity = null;
 114         super.onDetach();
 115     }
 116
 117     /**
 118      * {@inheritDoc}
 119      */
 120     @Override
 121     public void onActivityCreated(Bundle savedInstanceState) {
 122         super.onActivityCreated(savedInstanceState);
 123         Log_OC.e(TAG, "onActivityCreated() start");
 124
 125         if (savedInstanceState != null) {
 126             mFile = savedInstanceState.getParcelable(KEY_FILE);
 127         }
 128
 129         Bundle args = getArguments();
 130         boolean justFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 131         mAdapter = new FileListListAdapter(
 132                 justFolders,
 133                 getSherlockActivity(),
 134                 mContainerActivity
 135         );
 136         setListAdapter(mAdapter);
 137
 138         registerForContextMenu(getListView());
 139         getListView().setOnCreateContextMenuListener(this);
 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(KEY_FILE, mFile);
 149     }
 150
 151     /**
 152      * Call this, when the user presses the up button.
 153      *
 154      * Tries to move up the current folder one level. If the parent folder was removed from the
 155      * database, it continues browsing up until finding an existing folders.
 156      *
 157      * return       Count of folder levels browsed up.
 158      */
 159     public int onBrowseUp() {
 160         OCFile parentDir = null;
 161         int moveCount = 0;
 162
 163         if(mFile != null){
 164             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 165
 166             String parentPath = null;
 167             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 168                 parentPath = new File(mFile.getRemotePath()).getParent();
 169                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 170                         parentPath + OCFile.PATH_SEPARATOR;
 171                 parentDir = storageManager.getFileByPath(parentPath);
 172                 moveCount++;
 173             } else {
 174                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 175             }
 176             while (parentDir == null) {
 177                 parentPath = new File(parentPath).getParent();
 178                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 179                         parentPath + OCFile.PATH_SEPARATOR;
 180                 parentDir = storageManager.getFileByPath(parentPath);
 181                 moveCount++;
 182             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 183             mFile = parentDir;
 184
 185             listDirectory(mFile);
 186
 187             onRefresh(false);
 188
 189             // restore index and top position
 190             restoreIndexAndTopPosition();
 191
 192         }   // else - should never happen now
 193
 194         return moveCount;
 195     }
 196
 197     @Override
 198     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 199         OCFile file = (OCFile) mAdapter.getItem(position);
 200         if (file != null) {
 201             if (file.isFolder()) {
 202                 // update state and view of this fragment
 203                 listDirectory(file);
 204                 // then, notify parent activity to let it update its state and view
 205                 mContainerActivity.onBrowsedDownTo(file);
 206                 // save index and top position
 207                 saveIndexAndTopPosition(position);
 208
 209             } else { /// Click on a file
 210                 if (PreviewImageFragment.canBePreviewed(file)) {
 211                     // preview image - it handles the download, if needed
 212                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 213
 214                 } else if (file.isDown()) {
 215                     if (PreviewMediaFragment.canBePreviewed(file)) {
 216                         // media preview
 217                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 218                     } else {
 219                         mContainerActivity.getFileOperationsHelper().openFile(file);
 220                     }
 221
 222                 } else {
 223                     // automatic download, preview on finish
 224                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 225                 }
 226
 227             }
 228
 229         } else {
 230             Log_OC.d(TAG, "Null object in ListAdapter!!");
 231         }
 232
 233     }
 234
 235     /**
 236      * {@inheritDoc}
 237      */
 238     @Override
 239     public void onCreateContextMenu (
 240             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 241         super.onCreateContextMenu(menu, v, menuInfo);
 242         Bundle args = getArguments();
 243         boolean allowContextualActions =
 244                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 245         if (allowContextualActions) {
 246             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 247             inflater.inflate(R.menu.file_actions_menu, menu);
 248             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 249             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 250
 251             if (mContainerActivity.getStorageManager() != null) {
 252                 FileMenuFilter mf = new FileMenuFilter(
 253                     targetFile,
 254                     mContainerActivity.getStorageManager().getAccount(),
 255                     mContainerActivity,
 256                     getSherlockActivity()
 257                 );
 258                 mf.filter(menu);
 259             }
 260
 261             /// additional restrictions for this fragment
 262             // TODO allow in the future 'open with' for previewable files
 263             MenuItem item = menu.findItem(R.id.action_open_file_with);
 264             if (item != null) {
 265                 item.setVisible(false);
 266                 item.setEnabled(false);
 267             }
 268             /// TODO break this direct dependency on FileDisplayActivity... if possible
 269             FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 270             if (frag != null && frag instanceof FileDetailFragment &&
 271                     frag.getFile().getFileId() == targetFile.getFileId()) {
 272                 item = menu.findItem(R.id.action_see_details);
 273                 if (item != null) {
 274                     item.setVisible(false);
 275                     item.setEnabled(false);
 276                 }
 277             }
 278         }
 279     }
 280
 281
 282     /**
 283      * {@inhericDoc}
 284      */
 285     @Override
 286     public boolean onContextItemSelected (MenuItem item) {
 287         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 288         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 289         switch (item.getItemId()) {
 290             case R.id.action_share_file: {
 291                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 292                 return true;
 293             }
 294             case R.id.action_unshare_file: {
 295                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 296                 return true;
 297             }
 298             case R.id.action_rename_file: {
 299                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 300                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 301                 return true;
 302             }
 303             case R.id.action_remove_file: {
 304                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 305                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 306                 return true;
 307             }
 308             case R.id.action_download_file:
 309             case R.id.action_sync_file: {
 310                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 311                 triggerMediaScan(mTargetFile.getStoragePath());
 312                 return true;
 313             }
 314             case R.id.action_cancel_download:
 315             case R.id.action_cancel_upload: {
 316                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 317                 return true;
 318             }
 319             case R.id.action_see_details: {
 320                 mContainerActivity.showDetails(mTargetFile);
 321                 return true;
 322             }
 323             case R.id.action_send_file: {
 324                 // Obtain the file
 325                 if (!mTargetFile.isDown()) {  // Download the file
 326                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 327                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 328
 329                 } else {
 330                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 331                 }
 332                 return true;
 333             }
 334             case R.id.action_move: {
 335                 Intent action = new Intent(getActivity(), MoveActivity.class);
 336
 337                 // Pass mTargetFile that contains info of selected file/folder
 338                 action.putExtra(MoveActivity.EXTRA_TARGET_FILE, mTargetFile);
 339                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 340                 return true;
 341             }
 342             default:
 343                 return super.onContextItemSelected(item);
 344         }
 345     }
 346
 347
 348
 349     /**
 350      * Use this to query the {@link OCFile} that is currently
 351      * being displayed by this fragment
 352      * @return The currently viewed OCFile
 353      */
 354     public OCFile getCurrentFile(){
 355         return mFile;
 356     }
 357
 358     /**
 359      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 360      */
 361     public void listDirectory(){
 362         listDirectory(null);
 363     }
 364
 365     /**
 366      * Lists the given directory on the view. When the input parameter is null,
 367      * it will either refresh the last known directory. list the root
 368      * if there never was a directory.
 369      *
 370      * @param directory File to be listed
 371      */
 372     public void listDirectory(OCFile directory) {
 373         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 374         if (storageManager != null) {
 375
 376             // Check input parameters for null
 377             if(directory == null){
 378                 if(mFile != null){
 379                     directory = mFile;
 380                 } else {
 381                     directory = storageManager.getFileByPath("/");
 382                     if (directory == null) return; // no files, wait for sync
 383                 }
 384             }
 385
 386
 387             // If that's not a directory -> List its parent
 388             if(!directory.isFolder()){
 389                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 390                 directory = storageManager.getFileById(directory.getParentId());
 391             }
 392
 393             mAdapter.swapDirectory(directory, storageManager);
 394             if (mFile == null || !mFile.equals(directory)) {
 395                 mList.setSelectionFromTop(0, 0);
 396             }
 397             mFile = directory;
 398         }
 399     }
 400
 401     private void triggerMediaScan(String path){
 402         MediaScannerConnection.scanFile(
 403                 getActivity().getApplicationContext(),
 404                 new String[]{path},
 405                 null,null);
 406     }
 407 }