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.ui.activity.FileDisplayActivity;
  38 import com.owncloud.android.ui.activity.MoveActivity;
  39 import com.owncloud.android.ui.adapter.FileListListAdapter;
  40 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  41 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  42 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  43 import com.owncloud.android.ui.preview.PreviewImageFragment;
  44 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  45 import com.owncloud.android.utils.Log_OC;
  46
  47 /**
  48  * A Fragment that lists all files and folders in a given path.
  49  *
  50  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  51  *
  52  * @author Bartek Przybylski
  53  * @author masensio
  54  * @author David A. Velasco
  55  */
  56 public class OCFileListFragment extends ExtendedListFragment {
  57
  58     private static final String TAG = OCFileListFragment.class.getSimpleName();
  59
  60     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  61             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  62
  63     public final static String ARG_JUST_FOLDERS = MY_PACKAGE + ".JUST_FOLDERS";
  64     public final static String ARG_ALLOW_CONTEXTUAL_ACTIONS = MY_PACKAGE + ".ALLOW_CONTEXTUAL";
  65
  66     private static final String KEY_FILE = MY_PACKAGE + ".extra.FILE";
  67
  68     private FileFragment.ContainerActivity mContainerActivity;
  69
  70     private OCFile mFile = null;
  71     private FileListListAdapter mAdapter;
  72
  73     private OCFile mTargetFile;
  74
  75
  76     /**
  77      * {@inheritDoc}
  78      */
  79     @Override
  80     public void onAttach(Activity activity) {
  81         super.onAttach(activity);
  82         Log_OC.e(TAG, "onAttach");
  83         try {
  84             mContainerActivity = (FileFragment.ContainerActivity) activity;
  85
  86         } catch (ClassCastException e) {
  87             throw new ClassCastException(activity.toString() + " must implement " +
  88                     FileFragment.ContainerActivity.class.getSimpleName());
  89         }
  90         try {
  91             setOnRefreshListener((SwipeRefreshLayout.OnRefreshListener) activity);
  92
  93         } catch (ClassCastException e) {
  94             throw new ClassCastException(activity.toString() + " must implement " +
  95                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
  96         }
  97     }
  98
  99
 100     @Override
 101     public void onDetach() {
 102         setOnRefreshListener(null);
 103         mContainerActivity = null;
 104         super.onDetach();
 105     }
 106
 107     /**
 108      * {@inheritDoc}
 109      */
 110     @Override
 111     public void onActivityCreated(Bundle savedInstanceState) {
 112         super.onActivityCreated(savedInstanceState);
 113         Log_OC.e(TAG, "onActivityCreated() start");
 114
 115         if (savedInstanceState != null) {
 116             mFile = savedInstanceState.getParcelable(KEY_FILE);
 117         }
 118
 119         Bundle args = getArguments();
 120         boolean justFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 121         mAdapter = new FileListListAdapter(
 122                 justFolders,
 123                 getSherlockActivity(),
 124                 mContainerActivity
 125         );
 126         setListAdapter(mAdapter);
 127
 128         registerForContextMenu(getListView());
 129         getListView().setOnCreateContextMenuListener(this);
 130   }
 131
 132     /**
 133      * Saves the current listed folder.
 134      */
 135     @Override
 136     public void onSaveInstanceState (Bundle outState) {
 137         super.onSaveInstanceState(outState);
 138         outState.putParcelable(KEY_FILE, mFile);
 139     }
 140
 141     /**
 142      * Call this, when the user presses the up button.
 143      *
 144      * Tries to move up the current folder one level. If the parent folder was removed from the
 145      * database, it continues browsing up until finding an existing folders.
 146      *
 147      * return       Count of folder levels browsed up.
 148      */
 149     public int onBrowseUp() {
 150         OCFile parentDir = null;
 151         int moveCount = 0;
 152
 153         if(mFile != null){
 154             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 155
 156             String parentPath = null;
 157             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 158                 parentPath = new File(mFile.getRemotePath()).getParent();
 159                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 160                         parentPath + OCFile.PATH_SEPARATOR;
 161                 parentDir = storageManager.getFileByPath(parentPath);
 162                 moveCount++;
 163             } else {
 164                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 165             }
 166             while (parentDir == null) {
 167                 parentPath = new File(parentPath).getParent();
 168                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 169                         parentPath + OCFile.PATH_SEPARATOR;
 170                 parentDir = storageManager.getFileByPath(parentPath);
 171                 moveCount++;
 172             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 173             mFile = parentDir;
 174
 175             listDirectory(mFile);
 176
 177             onRefresh();
 178
 179             // restore index and top position
 180             restoreIndexAndTopPosition();
 181
 182         }   // else - should never happen now
 183
 184         return moveCount;
 185     }
 186
 187     @Override
 188     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 189         OCFile file = (OCFile) mAdapter.getItem(position);
 190         if (file != null) {
 191             if (file.isFolder()) {
 192                 // update state and view of this fragment
 193                 listDirectory(file);
 194                 // then, notify parent activity to let it update its state and view
 195                 mContainerActivity.onBrowsedDownTo(file);
 196                 // save index and top position
 197                 saveIndexAndTopPosition(position);
 198
 199             } else { /// Click on a file
 200                 if (PreviewImageFragment.canBePreviewed(file)) {
 201                     // preview image - it handles the download, if needed
 202                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 203
 204                 } else if (file.isDown()) {
 205                     if (PreviewMediaFragment.canBePreviewed(file)) {
 206                         // media preview
 207                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 208                     } else {
 209                         mContainerActivity.getFileOperationsHelper().openFile(file);
 210                     }
 211
 212                 } else {
 213                     // automatic download, preview on finish
 214                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 215                 }
 216
 217             }
 218
 219         } else {
 220             Log_OC.d(TAG, "Null object in ListAdapter!!");
 221         }
 222
 223     }
 224
 225     /**
 226      * {@inheritDoc}
 227      */
 228     @Override
 229     public void onCreateContextMenu (
 230             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 231         super.onCreateContextMenu(menu, v, menuInfo);
 232         Bundle args = getArguments();
 233         boolean allowContextualActions =
 234                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 235         if (allowContextualActions) {
 236             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 237             inflater.inflate(R.menu.file_actions_menu, menu);
 238             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 239             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 240
 241             if (mContainerActivity.getStorageManager() != null) {
 242                 FileMenuFilter mf = new FileMenuFilter(
 243                     targetFile,
 244                     mContainerActivity.getStorageManager().getAccount(),
 245                     mContainerActivity,
 246                     getSherlockActivity()
 247                 );
 248                 mf.filter(menu);
 249             }
 250
 251             /// additional restrictions for this fragment
 252             // TODO allow in the future 'open with' for previewable files
 253             MenuItem item = menu.findItem(R.id.action_open_file_with);
 254             if (item != null) {
 255                 item.setVisible(false);
 256                 item.setEnabled(false);
 257             }
 258             /// TODO break this direct dependency on FileDisplayActivity... if possible
 259             FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 260             if (frag != null && frag instanceof FileDetailFragment &&
 261                     frag.getFile().getFileId() == targetFile.getFileId()) {
 262                 item = menu.findItem(R.id.action_see_details);
 263                 if (item != null) {
 264                     item.setVisible(false);
 265                     item.setEnabled(false);
 266                 }
 267             }
 268         }
 269     }
 270
 271
 272     /**
 273      * {@inhericDoc}
 274      */
 275     @Override
 276     public boolean onContextItemSelected (MenuItem item) {
 277         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 278         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 279         switch (item.getItemId()) {
 280             case R.id.action_share_file: {
 281                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 282                 return true;
 283             }
 284             case R.id.action_unshare_file: {
 285                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 286                 return true;
 287             }
 288             case R.id.action_rename_file: {
 289                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 290                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 291                 return true;
 292             }
 293             case R.id.action_remove_file: {
 294                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 295                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 296                 return true;
 297             }
 298             case R.id.action_download_file:
 299             case R.id.action_sync_file: {
 300                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 301                 return true;
 302             }
 303             case R.id.action_cancel_download:
 304             case R.id.action_cancel_upload: {
 305                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 306                 return true;
 307             }
 308             case R.id.action_see_details: {
 309                 mContainerActivity.showDetails(mTargetFile);
 310                 return true;
 311             }
 312             case R.id.action_send_file: {
 313                 // Obtain the file
 314                 if (!mTargetFile.isDown()) {  // Download the file
 315                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 316                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 317
 318                 } else {
 319                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 320                 }
 321                 return true;
 322             }
 323             case R.id.action_move: {
 324                 Intent i = new Intent(getActivity(), MoveActivity.class);
 325                 startActivity(i);
 326
 327                 return true;
 328             }
 329             default:
 330                 return super.onContextItemSelected(item);
 331         }
 332     }
 333
 334
 335     /**
 336      * Use this to query the {@link OCFile} that is currently
 337      * being displayed by this fragment
 338      * @return The currently viewed OCFile
 339      */
 340     public OCFile getCurrentFile(){
 341         return mFile;
 342     }
 343
 344     /**
 345      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 346      */
 347     public void listDirectory(){
 348         listDirectory(null);
 349     }
 350
 351     /**
 352      * Lists the given directory on the view. When the input parameter is null,
 353      * it will either refresh the last known directory. list the root
 354      * if there never was a directory.
 355      *
 356      * @param directory File to be listed
 357      */
 358     public void listDirectory(OCFile directory) {
 359         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 360         if (storageManager != null) {
 361
 362             // Check input parameters for null
 363             if(directory == null){
 364                 if(mFile != null){
 365                     directory = mFile;
 366                 } else {
 367                     directory = storageManager.getFileByPath("/");
 368                     if (directory == null) return; // no files, wait for sync
 369                 }
 370             }
 371
 372
 373             // If that's not a directory -> List its parent
 374             if(!directory.isFolder()){
 375                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 376                 directory = storageManager.getFileById(directory.getParentId());
 377             }
 378
 379             mAdapter.swapDirectory(directory, storageManager);
 380             if (mFile == null || !mFile.equals(directory)) {
 381                 mList.setSelectionFromTop(0, 0);
 382             }
 383             mFile = directory;
 384         }
 385     }
 386
 387 }