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.Vector;
  22
  23 import android.app.Activity;
  24 import android.content.Context;
  25 import android.content.Intent;
  26 import android.os.Bundle;
  27 import android.support.v4.widget.SwipeRefreshLayout;
  28 import android.view.ContextMenu;
  29 import android.view.MenuInflater;
  30 import android.view.MenuItem;
  31 import android.view.View;
  32 import android.view.ViewGroup;
  33 import android.widget.AdapterView;
  34 import android.widget.AdapterView.AdapterContextMenuInfo;
  35 import android.widget.TextView;
  36 import android.view.LayoutInflater;
  37
  38 import com.owncloud.android.R;
  39 import com.owncloud.android.datamodel.FileDataStorageManager;
  40 import com.owncloud.android.datamodel.OCFile;
  41 import com.owncloud.android.files.FileMenuFilter;
  42 import com.owncloud.android.lib.common.utils.Log_OC;
  43 import com.owncloud.android.ui.activity.FileDisplayActivity;
  44 import com.owncloud.android.ui.activity.FolderPickerActivity;
  45 import com.owncloud.android.ui.activity.OnEnforceableRefreshListener;
  46 import com.owncloud.android.ui.adapter.FileListListAdapter;
  47 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  48 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  49 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  50 import com.owncloud.android.ui.preview.PreviewImageFragment;
  51 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  52 import com.owncloud.android.utils.DisplayUtils;
  53 import com.owncloud.android.utils.FileStorageUtils;
  54
  55 /**
  56  * A Fragment that lists all files and folders in a given path.
  57  *
  58  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  59  *
  60  * @author Bartek Przybylski
  61  * @author masensio
  62  * @author David A. Velasco
  63  */
  64 public class OCFileListFragment extends ExtendedListFragment {
  65
  66     private static final String TAG = OCFileListFragment.class.getSimpleName();
  67
  68     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  69             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  70
  71     public final static String ARG_JUST_FOLDERS = MY_PACKAGE + ".JUST_FOLDERS";
  72     public final static String ARG_ALLOW_CONTEXTUAL_ACTIONS = MY_PACKAGE + ".ALLOW_CONTEXTUAL";
  73
  74     private static final String KEY_FILE = MY_PACKAGE + ".extra.FILE";
  75
  76     private FileFragment.ContainerActivity mContainerActivity;
  77
  78     private OCFile mFile = null;
  79     private FileListListAdapter mAdapter;
  80     private View mFooterView;
  81     private boolean mJustFolders;
  82
  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         mFooterView = ((LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
 130                         R.layout.list_footer, null, false);
 131         setFooterView(mFooterView);
 132
 133         Bundle args = getArguments();
 134         mJustFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 135         mAdapter = new FileListListAdapter(
 136                 mJustFolders,
 137                 getSherlockActivity(),
 138                 mContainerActivity
 139                 );
 140         setListAdapter(mAdapter);
 141
 142         registerForContextMenu(getGridView());
 143         getGridView().setOnCreateContextMenuListener(this);
 144   }
 145
 146     /**
 147      * Saves the current listed folder.
 148      */
 149     @Override
 150     public void onSaveInstanceState (Bundle outState) {
 151         super.onSaveInstanceState(outState);
 152         outState.putParcelable(KEY_FILE, mFile);
 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
 159      * database, 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 :
 174                         parentPath + OCFile.PATH_SEPARATOR;
 175                 parentDir = storageManager.getFileByPath(parentPath);
 176                 moveCount++;
 177             } else {
 178                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 179             }
 180             while (parentDir == null) {
 181                 parentPath = new File(parentPath).getParent();
 182                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 183                         parentPath + OCFile.PATH_SEPARATOR;
 184                 parentDir = storageManager.getFileByPath(parentPath);
 185                 moveCount++;
 186             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 187             mFile = parentDir;
 188
 189             listDirectory(mFile);
 190
 191             onRefresh(false);
 192
 193             // restore index and top position
 194             restoreIndexAndTopPosition();
 195
 196         }   // else - should never happen now
 197
 198         return moveCount;
 199     }
 200
 201     @Override
 202     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 203         OCFile file = (OCFile) mAdapter.getItem(position);
 204         if (file != null) {
 205             if (file.isFolder()) {
 206                 // update state and view of this fragment
 207                 listDirectory(file);
 208                 // then, notify parent activity to let it update its state and view
 209                 mContainerActivity.onBrowsedDownTo(file);
 210                 // save index and top position
 211                 saveIndexAndTopPosition(position);
 212
 213             } else { /// Click on a file
 214                 if (PreviewImageFragment.canBePreviewed(file)) {
 215                     // preview image - it handles the download, if needed
 216                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 217
 218                 } else if (file.isDown()) {
 219                     if (PreviewMediaFragment.canBePreviewed(file)) {
 220                         // media preview
 221                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 222                     } else {
 223                         mContainerActivity.getFileOperationsHelper().openFile(file);
 224                     }
 225
 226                 } else {
 227                     // automatic download, preview on finish
 228                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 229                 }
 230
 231             }
 232
 233         } else {
 234             Log_OC.d(TAG, "Null object in ListAdapter!!");
 235         }
 236
 237     }
 238
 239     /**
 240      * {@inheritDoc}
 241      */
 242     @Override
 243     public void onCreateContextMenu (
 244             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 245         super.onCreateContextMenu(menu, v, menuInfo);
 246         Bundle args = getArguments();
 247         boolean allowContextualActions =
 248                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 249         if (allowContextualActions) {
 250             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 251             inflater.inflate(R.menu.file_actions_menu, menu);
 252             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 253             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 254
 255             if (mContainerActivity.getStorageManager() != null) {
 256                 FileMenuFilter mf = new FileMenuFilter(
 257                     targetFile,
 258                     mContainerActivity.getStorageManager().getAccount(),
 259                     mContainerActivity,
 260                     getSherlockActivity()
 261                 );
 262                 mf.filter(menu);
 263             }
 264
 265             /// TODO break this direct dependency on FileDisplayActivity... if possible
 266             MenuItem item = menu.findItem(R.id.action_open_file_with);
 267             FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 268             if (frag != null && frag instanceof FileDetailFragment &&
 269                     frag.getFile().getFileId() == targetFile.getFileId()) {
 270                 item = menu.findItem(R.id.action_see_details);
 271                 if (item != null) {
 272                     item.setVisible(false);
 273                     item.setEnabled(false);
 274                 }
 275             }
 276         }
 277     }
 278
 279
 280     /**
 281      * {@inhericDoc}
 282      */
 283     @Override
 284     public boolean onContextItemSelected (MenuItem item) {
 285         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 286         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 287         switch (item.getItemId()) {
 288             case R.id.action_share_file: {
 289                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 290                 return true;
 291             }
 292             case R.id.action_open_file_with: {
 293                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 294                 return true;
 295             }
 296             case R.id.action_unshare_file: {
 297                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 298                 return true;
 299             }
 300             case R.id.action_rename_file: {
 301                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 302                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 303                 return true;
 304             }
 305             case R.id.action_remove_file: {
 306                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 307                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 308                 return true;
 309             }
 310             case R.id.action_download_file:
 311             case R.id.action_sync_file: {
 312                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 313                 return true;
 314             }
 315             case R.id.action_cancel_download:
 316             case R.id.action_cancel_upload: {
 317                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 318                 return true;
 319             }
 320             case R.id.action_see_details: {
 321                 mContainerActivity.showDetails(mTargetFile);
 322                 return true;
 323             }
 324             case R.id.action_send_file: {
 325                 // Obtain the file
 326                 if (!mTargetFile.isDown()) {  // Download the file
 327                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 328                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 329
 330                 } else {
 331                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 332                 }
 333                 return true;
 334             }
 335             case R.id.action_move: {
 336                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 337
 338                 // Pass mTargetFile that contains info of selected file/folder
 339                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 340                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 341                 return true;
 342             }
 343             default:
 344                 return super.onContextItemSelected(item);
 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                 imageView.setSelection(0);
 396             }
 397             mFile = directory;
 398
 399             Vector<OCFile> files = storageManager.getFolderContent(directory);
 400             // Update Footer
 401             TextView footerText = (TextView) mFooterView.findViewById(R.id.footerText);
 402             footerText.setText(generateFooterText(directory));
 403             if (DisplayUtils.decideViewLayout(files) && !mJustFolders){
 404                 switchImageView();
 405             } else {
 406                 switchFileView();
 407             }
 408         }
 409     }
 410
 411     private String generateFooterText(OCFile directory) {
 412         Integer files = 0;
 413         Integer folders = 0;
 414
 415         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 416         Vector<OCFile> mFiles = storageManager.getFolderContent(mFile);
 417
 418         for (OCFile ocFile : mFiles) {
 419             if (ocFile.isFolder()) {
 420                 folders++;
 421             } else {
 422                 files++;
 423             }
 424         }
 425
 426         String output = "";
 427
 428         if (files > 0){
 429             if (files == 1) {
 430                 output = output + files.toString() + " " + getResources().getString(R.string.file_list_file);
 431             } else {
 432                 output = output + files.toString() + " " + getResources().getString(R.string.file_list_files);
 433             }
 434         }
 435         if (folders > 0 && files > 0){
 436             output = output + ", ";
 437         }
 438         if (folders == 1) {
 439             output = output + folders.toString() + " " + getResources().getString(R.string.file_list_folder);
 440         } else if (folders > 1) {
 441             output = output + folders.toString() + " " + getResources().getString(R.string.file_list_folders);
 442         }
 443
 444         // Fix for showing or not to show the footerView
 445         if (folders == 0 && files == 0) {   // If no files or folders, remove footerView for allowing
 446                                             // to show the emptyList message
 447             removeFooterView(mFooterView);
 448         } else { // set a new footerView if there is not one for showing the number or files/folders
 449             if (getFooterViewCount()== 0) {
 450                 ((ViewGroup)mFooterView.getParent()).removeView(mFooterView);
 451                 setFooterView(mFooterView);
 452             }
 453         }
 454
 455         return output;
 456     }
 457
 458     public void sortByName(boolean descending) {
 459         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 460     }
 461
 462     public void sortByDate(boolean descending) {
 463         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 464     }
 465
 466     public void sortBySize(boolean descending) {
 467         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 468     }
 469
 470 }