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.app.Activity;
  23 import android.content.Intent;
  24 import android.os.Bundle;
  25 import android.support.v4.widget.SwipeRefreshLayout;
  26 import android.view.ContextMenu;
  27 import android.view.MenuInflater;
  28 import android.view.MenuItem;
  29 import android.view.View;
  30 import android.widget.AdapterView;
  31 import android.widget.AdapterView.AdapterContextMenuInfo;
  32
  33 import com.owncloud.android.R;
  34 import com.owncloud.android.datamodel.FileDataStorageManager;
  35 import com.owncloud.android.datamodel.OCFile;
  36 import com.owncloud.android.files.FileMenuFilter;
  37 import com.owncloud.android.lib.common.utils.Log_OC;
  38 import com.owncloud.android.ui.activity.FileDisplayActivity;
  39 import com.owncloud.android.ui.activity.MoveActivity;
  40 import com.owncloud.android.ui.activity.OnEnforceableRefreshListener;
  41 import com.owncloud.android.ui.adapter.FileListListAdapter;
  42 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  43 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  44 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  45 import com.owncloud.android.ui.preview.PreviewImageFragment;
  46 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  47
  48 /**
  49  * A Fragment that lists all files and folders in a given path.
  50  *
  51  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  52  *
  53  * @author Bartek Przybylski
  54  * @author masensio
  55  * @author David A. Velasco
  56  */
  57 public class OCFileListFragment extends ExtendedListFragment {
  58
  59     private static final String TAG = OCFileListFragment.class.getSimpleName();
  60
  61     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  62             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  63
  64     public final static String ARG_JUST_FOLDERS = MY_PACKAGE + ".JUST_FOLDERS";
  65     public final static String ARG_ALLOW_CONTEXTUAL_ACTIONS = MY_PACKAGE + ".ALLOW_CONTEXTUAL";
  66
  67     private static final String KEY_FILE = MY_PACKAGE + ".extra.FILE";
  68
  69     private FileFragment.ContainerActivity mContainerActivity;
  70
  71     private OCFile mFile = null;
  72     private FileListListAdapter mAdapter;
  73
  74     private OCFile mTargetFile;
  75
  76
  77     /**
  78      * {@inheritDoc}
  79      */
  80     @Override
  81     public void onAttach(Activity activity) {
  82         super.onAttach(activity);
  83         Log_OC.e(TAG, "onAttach");
  84         try {
  85             mContainerActivity = (FileFragment.ContainerActivity) activity;
  86
  87         } catch (ClassCastException e) {
  88             throw new ClassCastException(activity.toString() + " must implement " +
  89                     FileFragment.ContainerActivity.class.getSimpleName());
  90         }
  91         try {
  92             setOnRefreshListener((OnEnforceableRefreshListener) activity);
  93
  94         } catch (ClassCastException e) {
  95             throw new ClassCastException(activity.toString() + " must implement " +
  96                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
  97         }
  98     }
  99
 100
 101     @Override
 102     public void onDetach() {
 103         setOnRefreshListener(null);
 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         if (savedInstanceState != null) {
 117             mFile = savedInstanceState.getParcelable(KEY_FILE);
 118         }
 119
 120         Bundle args = getArguments();
 121         boolean justFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 122         mAdapter = new FileListListAdapter(
 123                 justFolders,
 124                 getSherlockActivity(),
 125                 mContainerActivity
 126         );
 127         setListAdapter(mAdapter);
 128
 129         registerForContextMenu(getListView());
 130         getListView().setOnCreateContextMenuListener(this);
 131   }
 132
 133     /**
 134      * Saves the current listed folder.
 135      */
 136     @Override
 137     public void onSaveInstanceState (Bundle outState) {
 138         super.onSaveInstanceState(outState);
 139         outState.putParcelable(KEY_FILE, mFile);
 140     }
 141
 142     /**
 143      * Call this, when the user presses the up button.
 144      *
 145      * Tries to move up the current folder one level. If the parent folder was removed from the
 146      * database, it continues browsing up until finding an existing folders.
 147      *
 148      * return       Count of folder levels browsed up.
 149      */
 150     public int onBrowseUp() {
 151         OCFile parentDir = null;
 152         int moveCount = 0;
 153
 154         if(mFile != null){
 155             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 156
 157             String parentPath = null;
 158             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 159                 parentPath = new File(mFile.getRemotePath()).getParent();
 160                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 161                         parentPath + OCFile.PATH_SEPARATOR;
 162                 parentDir = storageManager.getFileByPath(parentPath);
 163                 moveCount++;
 164             } else {
 165                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 166             }
 167             while (parentDir == null) {
 168                 parentPath = new File(parentPath).getParent();
 169                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 170                         parentPath + OCFile.PATH_SEPARATOR;
 171                 parentDir = storageManager.getFileByPath(parentPath);
 172                 moveCount++;
 173             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 174             mFile = parentDir;
 175
 176             listDirectory(mFile);
 177
 178             onRefresh(false);
 179
 180             // restore index and top position
 181             restoreIndexAndTopPosition();
 182
 183         }   // else - should never happen now
 184
 185         return moveCount;
 186     }
 187
 188     @Override
 189     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 190         OCFile file = (OCFile) mAdapter.getItem(position);
 191         if (file != null) {
 192             if (file.isFolder()) {
 193                 // update state and view of this fragment
 194                 listDirectory(file);
 195                 // then, notify parent activity to let it update its state and view
 196                 mContainerActivity.onBrowsedDownTo(file);
 197                 // save index and top position
 198                 saveIndexAndTopPosition(position);
 199
 200             } else { /// Click on a file
 201                 if (PreviewImageFragment.canBePreviewed(file)) {
 202                     // preview image - it handles the download, if needed
 203                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 204
 205                 } else if (file.isDown()) {
 206                     if (PreviewMediaFragment.canBePreviewed(file)) {
 207                         // media preview
 208                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 209                     } else {
 210                         mContainerActivity.getFileOperationsHelper().openFile(file);
 211                     }
 212
 213                 } else {
 214                     // automatic download, preview on finish
 215                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 216                 }
 217
 218             }
 219
 220         } else {
 221             Log_OC.d(TAG, "Null object in ListAdapter!!");
 222         }
 223
 224     }
 225
 226     /**
 227      * {@inheritDoc}
 228      */
 229     @Override
 230     public void onCreateContextMenu (
 231             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 232         super.onCreateContextMenu(menu, v, menuInfo);
 233         Bundle args = getArguments();
 234         boolean allowContextualActions =
 235                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 236         if (allowContextualActions) {
 237             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 238             inflater.inflate(R.menu.file_actions_menu, menu);
 239             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 240             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 241
 242             if (mContainerActivity.getStorageManager() != null) {
 243                 FileMenuFilter mf = new FileMenuFilter(
 244                     targetFile,
 245                     mContainerActivity.getStorageManager().getAccount(),
 246                     mContainerActivity,
 247                     getSherlockActivity()
 248                 );
 249                 mf.filter(menu);
 250             }
 251
 252             /// additional restrictions for this fragment
 253             // TODO allow in the future 'open with' for previewable files
 254             MenuItem item = menu.findItem(R.id.action_open_file_with);
 255             if (item != null) {
 256                 item.setVisible(false);
 257                 item.setEnabled(false);
 258             }
 259             /// TODO break this direct dependency on FileDisplayActivity... if possible
 260             FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 261             if (frag != null && frag instanceof FileDetailFragment &&
 262                     frag.getFile().getFileId() == targetFile.getFileId()) {
 263                 item = menu.findItem(R.id.action_see_details);
 264                 if (item != null) {
 265                     item.setVisible(false);
 266                     item.setEnabled(false);
 267                 }
 268             }
 269         }
 270     }
 271
 272
 273     /**
 274      * {@inhericDoc}
 275      */
 276     @Override
 277     public boolean onContextItemSelected (MenuItem item) {
 278         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 279         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 280         switch (item.getItemId()) {
 281             case R.id.action_share_file: {
 282                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 283                 return true;
 284             }
 285             case R.id.action_unshare_file: {
 286                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 287                 return true;
 288             }
 289             case R.id.action_rename_file: {
 290                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 291                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 292                 return true;
 293             }
 294             case R.id.action_remove_file: {
 295                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 296                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 297                 return true;
 298             }
 299             case R.id.action_download_file:
 300             case R.id.action_sync_file: {
 301                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 302                 return true;
 303             }
 304             case R.id.action_cancel_download:
 305             case R.id.action_cancel_upload: {
 306                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 307                 return true;
 308             }
 309             case R.id.action_see_details: {
 310                 mContainerActivity.showDetails(mTargetFile);
 311                 return true;
 312             }
 313             case R.id.action_send_file: {
 314                 // Obtain the file
 315                 if (!mTargetFile.isDown()) {  // Download the file
 316                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 317                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 318
 319                 } else {
 320                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 321                 }
 322                 return true;
 323             }
 324             case R.id.action_move: {
 325                 Intent action = new Intent(getActivity(), MoveActivity.class);
 326
 327                 // Pass mTargetFile that contains info of selected file/folder
 328                 action.putExtra(MoveActivity.EXTRA_TARGET_FILE, mTargetFile);
 329                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 330                 return true;
 331             }
 332             default:
 333                 return super.onContextItemSelected(item);
 334         }
 335     }
 336
 337
 338     /**
 339      * Use this to query the {@link OCFile} that is currently
 340      * being displayed by this fragment
 341      * @return The currently viewed OCFile
 342      */
 343     public OCFile getCurrentFile(){
 344         return mFile;
 345     }
 346
 347     /**
 348      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 349      */
 350     public void listDirectory(){
 351         listDirectory(null);
 352     }
 353
 354     /**
 355      * Lists the given directory on the view. When the input parameter is null,
 356      * it will either refresh the last known directory. list the root
 357      * if there never was a directory.
 358      *
 359      * @param directory File to be listed
 360      */
 361     public void listDirectory(OCFile directory) {
 362         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 363         if (storageManager != null) {
 364
 365             // Check input parameters for null
 366             if(directory == null){
 367                 if(mFile != null){
 368                     directory = mFile;
 369                 } else {
 370                     directory = storageManager.getFileByPath("/");
 371                     if (directory == null) return; // no files, wait for sync
 372                 }
 373             }
 374
 375
 376             // If that's not a directory -> List its parent
 377             if(!directory.isFolder()){
 378                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 379                 directory = storageManager.getFileById(directory.getParentId());
 380             }
 381
 382             mAdapter.swapDirectory(directory, storageManager);
 383             if (mFile == null || !mFile.equals(directory)) {
 384                 mList.setSelectionFromTop(0, 0);
 385             }
 386             mFile = directory;
 387         }
 388     }
 389
 390     public void sortByName(boolean descending){
 391         mAdapter.setSortOrder(0, descending);
 392     }
 393
 394     public void sortByDate(boolean descending){
 395         mAdapter.setSortOrder(1, descending);
 396     }
 397
 398     public void sortBySize(boolean descending){
 399         mAdapter.setSortOrder(2, descending);
 400     }
 401 }