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.view.ContextMenu;
  26 import android.view.MenuInflater;
  27 import android.view.MenuItem;
  28 import android.view.View;
  29 import android.widget.AdapterView;
  30 import android.widget.AdapterView.AdapterContextMenuInfo;
  31
  32 import com.owncloud.android.R;
  33 import com.owncloud.android.datamodel.FileDataStorageManager;
  34 import com.owncloud.android.datamodel.OCFile;
  35 import com.owncloud.android.files.FileMenuFilter;
  36 import com.owncloud.android.ui.activity.FileDisplayActivity;
  37 import com.owncloud.android.ui.activity.MoveActivity;
  38 import com.owncloud.android.ui.adapter.FileListListAdapter;
  39 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  40 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  41 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  42 import com.owncloud.android.ui.preview.PreviewImageFragment;
  43 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  44 import com.owncloud.android.utils.Log_OC;
  45
  46 /**
  47  * A Fragment that lists all files and folders in a given path.
  48  *
  49  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  50  *
  51  * @author Bartek Przybylski
  52  * @author masensio
  53  * @author David A. Velasco
  54  */
  55 public class OCFileListFragment extends ExtendedListFragment {
  56
  57     private static final String TAG = OCFileListFragment.class.getSimpleName();
  58
  59     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  60             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  61     private static final String EXTRA_FILE = MY_PACKAGE + ".extra.FILE";
  62
  63     private FileFragment.ContainerActivity mContainerActivity;
  64
  65     private OCFile mFile = null;
  66     private FileListListAdapter mAdapter;
  67
  68     private OCFile mTargetFile;
  69
  70     /**
  71      * {@inheritDoc}
  72      */
  73     @Override
  74     public void onAttach(Activity activity) {
  75         super.onAttach(activity);
  76         Log_OC.e(TAG, "onAttach");
  77         try {
  78             mContainerActivity = (FileFragment.ContainerActivity) activity;
  79         } catch (ClassCastException e) {
  80             throw new ClassCastException(activity.toString() + " must implement " +
  81                     FileFragment.ContainerActivity.class.getSimpleName());
  82         }
  83     }
  84
  85
  86     @Override
  87     public void onDetach() {
  88         mContainerActivity = null;
  89         super.onDetach();
  90     }
  91
  92     /**
  93      * {@inheritDoc}
  94      */
  95     @Override
  96     public void onActivityCreated(Bundle savedInstanceState) {
  97         super.onActivityCreated(savedInstanceState);
  98         Log_OC.e(TAG, "onActivityCreated() start");
  99
 100         if (savedInstanceState != null) {
 101             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 102         }
 103
 104         mAdapter = new FileListListAdapter(getSherlockActivity(), mContainerActivity);
 105         setListAdapter(mAdapter);
 106
 107         registerForContextMenu(getListView());
 108         getListView().setOnCreateContextMenuListener(this);
 109   }
 110
 111     /**
 112      * Saves the current listed folder.
 113      */
 114     @Override
 115     public void onSaveInstanceState (Bundle outState) {
 116         super.onSaveInstanceState(outState);
 117         outState.putParcelable(EXTRA_FILE, mFile);
 118     }
 119
 120     /**
 121      * Call this, when the user presses the up button.
 122      *
 123      * Tries to move up the current folder one level. If the parent folder was removed from the
 124      * database, it continues browsing up until finding an existing folders.
 125      *
 126      * return       Count of folder levels browsed up.
 127      */
 128     public int onBrowseUp() {
 129         OCFile parentDir = null;
 130         int moveCount = 0;
 131
 132         if(mFile != null){
 133             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 134
 135             String parentPath = null;
 136             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 137                 parentPath = new File(mFile.getRemotePath()).getParent();
 138                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 139                         parentPath + OCFile.PATH_SEPARATOR;
 140                 parentDir = storageManager.getFileByPath(parentPath);
 141                 moveCount++;
 142             } else {
 143                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 144             }
 145             while (parentDir == null) {
 146                 parentPath = new File(parentPath).getParent();
 147                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 148                         parentPath + OCFile.PATH_SEPARATOR;
 149                 parentDir = storageManager.getFileByPath(parentPath);
 150                 moveCount++;
 151             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 152             mFile = parentDir;
 153
 154             listDirectory(mFile);
 155
 156             ((FileDisplayActivity)mContainerActivity).startSyncFolderOperation(mFile);
 157
 158             // restore index and top position
 159             restoreIndexAndTopPosition();
 160
 161         }   // else - should never happen now
 162
 163         return moveCount;
 164     }
 165
 166     @Override
 167     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 168         OCFile file = (OCFile) mAdapter.getItem(position);
 169         if (file != null) {
 170             if (file.isFolder()) {
 171                 // update state and view of this fragment
 172                 listDirectory(file);
 173                 // then, notify parent activity to let it update its state and view
 174                 mContainerActivity.onBrowsedDownTo(file);
 175                 // save index and top position
 176                 saveIndexAndTopPosition(position);
 177
 178             } else { /// Click on a file
 179                 if (PreviewImageFragment.canBePreviewed(file)) {
 180                     // preview image - it handles the download, if needed
 181                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 182
 183                 } else if (file.isDown()) {
 184                     if (PreviewMediaFragment.canBePreviewed(file)) {
 185                         // media preview
 186                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 187                     } else {
 188                         mContainerActivity.getFileOperationsHelper().openFile(file);
 189                     }
 190
 191                 } else {
 192                     // automatic download, preview on finish
 193                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 194                 }
 195
 196             }
 197
 198         } else {
 199             Log_OC.d(TAG, "Null object in ListAdapter!!");
 200         }
 201
 202     }
 203
 204     /**
 205      * {@inheritDoc}
 206      */
 207     @Override
 208     public void onCreateContextMenu (
 209             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 210         super.onCreateContextMenu(menu, v, menuInfo);
 211         MenuInflater inflater = getSherlockActivity().getMenuInflater();
 212         inflater.inflate(R.menu.file_actions_menu, menu);
 213         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 214         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 215
 216         if (mContainerActivity.getStorageManager() != null) {
 217             FileMenuFilter mf = new FileMenuFilter(
 218                 targetFile,
 219                 mContainerActivity.getStorageManager().getAccount(),
 220                 mContainerActivity,
 221                 getSherlockActivity()
 222             );
 223             mf.filter(menu);
 224         }
 225
 226         /// additional restrictions for this fragment
 227         // TODO allow in the future 'open with' for previewable files
 228         MenuItem item = menu.findItem(R.id.action_open_file_with);
 229         if (item != null) {
 230             item.setVisible(false);
 231             item.setEnabled(false);
 232         }
 233         /// TODO break this direct dependency on FileDisplayActivity... if possible
 234         FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 235         if (frag != null && frag instanceof FileDetailFragment &&
 236                 frag.getFile().getFileId() == targetFile.getFileId()) {
 237             item = menu.findItem(R.id.action_see_details);
 238             if (item != null) {
 239                 item.setVisible(false);
 240                 item.setEnabled(false);
 241             }
 242         }
 243
 244
 245     }
 246
 247
 248     /**
 249      * {@inhericDoc}
 250      */
 251     @Override
 252     public boolean onContextItemSelected (MenuItem item) {
 253         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 254         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 255         switch (item.getItemId()) {
 256             case R.id.action_share_file: {
 257                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 258                 return true;
 259             }
 260             case R.id.action_unshare_file: {
 261                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 262                 return true;
 263             }
 264             case R.id.action_rename_file: {
 265                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 266                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 267                 return true;
 268             }
 269             case R.id.action_remove_file: {
 270                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 271                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 272                 return true;
 273             }
 274             case R.id.action_download_file:
 275             case R.id.action_sync_file: {
 276                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 277                 return true;
 278             }
 279             case R.id.action_cancel_download:
 280             case R.id.action_cancel_upload: {
 281                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 282                 return true;
 283             }
 284             case R.id.action_see_details: {
 285                 mContainerActivity.showDetails(mTargetFile);
 286                 return true;
 287             }
 288             case R.id.action_send_file: {
 289                 // Obtain the file
 290                 if (!mTargetFile.isDown()) {  // Download the file
 291                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 292                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 293
 294                 } else {
 295                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 296                 }
 297                 return true;
 298             }
 299             case R.id.action_move: {
 300                 Intent i = new Intent(getActivity(), MoveActivity.class);
 301                 startActivity(i);
 302
 303                 return true;
 304             }
 305             default:
 306                 return super.onContextItemSelected(item);
 307         }
 308     }
 309
 310
 311     /**
 312      * Use this to query the {@link OCFile} that is currently
 313      * being displayed by this fragment
 314      * @return The currently viewed OCFile
 315      */
 316     public OCFile getCurrentFile(){
 317         return mFile;
 318     }
 319
 320     /**
 321      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 322      */
 323     public void listDirectory(){
 324         listDirectory(null);
 325     }
 326
 327     /**
 328      * Lists the given directory on the view. When the input parameter is null,
 329      * it will either refresh the last known directory. list the root
 330      * if there never was a directory.
 331      *
 332      * @param directory File to be listed
 333      */
 334     public void listDirectory(OCFile directory) {
 335         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 336         if (storageManager != null) {
 337
 338             // Check input parameters for null
 339             if(directory == null){
 340                 if(mFile != null){
 341                     directory = mFile;
 342                 } else {
 343                     directory = storageManager.getFileByPath("/");
 344                     if (directory == null) return; // no files, wait for sync
 345                 }
 346             }
 347
 348
 349             // If that's not a directory -> List its parent
 350             if(!directory.isFolder()){
 351                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 352                 directory = storageManager.getFileById(directory.getParentId());
 353             }
 354
 355             mAdapter.swapDirectory(directory, storageManager);
 356             if (mFile == null || !mFile.equals(directory)) {
 357                 mList.setSelectionFromTop(0, 0);
 358             }
 359             mFile = directory;
 360         }
 361     }
 362
 363
 364     @Override
 365     public void onRefresh() {
 366         super.onRefresh();
 367
 368         if (mFile != null) {
 369             // Refresh mFile
 370             mFile = mContainerActivity.getStorageManager().getFileById(mFile.getFileId());
 371
 372             listDirectory(mFile);
 373
 374             ((FileDisplayActivity)mContainerActivity).startSyncFolderOperation(mFile);
 375         }
 376     }
 377
 378
 379
 380 }