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.widget.AdapterView;
  33 import android.widget.AdapterView.AdapterContextMenuInfo;
  34 import android.widget.TextView;
  35 import android.view.LayoutInflater;
  36
  37 import com.owncloud.android.R;
  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.lib.common.utils.Log_OC;
  42 import com.owncloud.android.ui.activity.FileDisplayActivity;
  43 import com.owncloud.android.ui.activity.FolderPickerActivity;
  44 import com.owncloud.android.ui.activity.OnEnforceableRefreshListener;
  45 import com.owncloud.android.ui.adapter.FileListListAdapter;
  46 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  47 import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
  48 import com.owncloud.android.ui.dialog.RenameFileDialogFragment;
  49 import com.owncloud.android.ui.preview.PreviewImageFragment;
  50 import com.owncloud.android.ui.preview.PreviewMediaFragment;
  51 import com.owncloud.android.ui.preview.PreviewTextFragment;
  52
  53 /**
  54  * A Fragment that lists all files and folders in a given path.
  55  *
  56  * TODO refactorize to get rid of direct dependency on FileDisplayActivity
  57  *
  58  * @author Bartek Przybylski
  59  * @author masensio
  60  * @author David A. Velasco
  61  */
  62 public class OCFileListFragment extends ExtendedListFragment {
  63
  64     private static final String TAG = OCFileListFragment.class.getSimpleName();
  65
  66     private static final String MY_PACKAGE = OCFileListFragment.class.getPackage() != null ?
  67             OCFileListFragment.class.getPackage().getName() : "com.owncloud.android.ui.fragment";
  68
  69     public final static String ARG_JUST_FOLDERS = MY_PACKAGE + ".JUST_FOLDERS";
  70     public final static String ARG_ALLOW_CONTEXTUAL_ACTIONS = MY_PACKAGE + ".ALLOW_CONTEXTUAL";
  71
  72     private static final String KEY_FILE = MY_PACKAGE + ".extra.FILE";
  73
  74     private FileFragment.ContainerActivity mContainerActivity;
  75
  76     private OCFile mFile = null;
  77     private FileListListAdapter mAdapter;
  78     private View mFooterView;
  79
  80     private OCFile mTargetFile;
  81
  82
  83     /**
  84      * {@inheritDoc}
  85      */
  86     @Override
  87     public void onAttach(Activity activity) {
  88         super.onAttach(activity);
  89         Log_OC.e(TAG, "onAttach");
  90         try {
  91             mContainerActivity = (FileFragment.ContainerActivity) activity;
  92
  93         } catch (ClassCastException e) {
  94             throw new ClassCastException(activity.toString() + " must implement " +
  95                     FileFragment.ContainerActivity.class.getSimpleName());
  96         }
  97         try {
  98             setOnRefreshListener((OnEnforceableRefreshListener) activity);
  99
 100         } catch (ClassCastException e) {
 101             throw new ClassCastException(activity.toString() + " must implement " +
 102                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
 103         }
 104     }
 105
 106
 107     @Override
 108     public void onDetach() {
 109         setOnRefreshListener(null);
 110         mContainerActivity = null;
 111         super.onDetach();
 112     }
 113
 114     /**
 115      * {@inheritDoc}
 116      */
 117     @Override
 118     public void onActivityCreated(Bundle savedInstanceState) {
 119         super.onActivityCreated(savedInstanceState);
 120         Log_OC.e(TAG, "onActivityCreated() start");
 121
 122         if (savedInstanceState != null) {
 123             mFile = savedInstanceState.getParcelable(KEY_FILE);
 124         }
 125
 126         mFooterView = ((LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
 127                         R.layout.list_footer, null, false);
 128         setFooterView(mFooterView);
 129
 130         Bundle args = getArguments();
 131         boolean justFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 132         mAdapter = new FileListListAdapter(
 133                 justFolders,
 134                 getSherlockActivity(),
 135                 mContainerActivity
 136                 );
 137         setListAdapter(mAdapter);
 138
 139         registerForContextMenu(getListView());
 140         getListView().setOnCreateContextMenuListener(this);
 141     }
 142
 143     /**
 144      * Saves the current listed folder.
 145      */
 146     @Override
 147     public void onSaveInstanceState (Bundle outState) {
 148         super.onSaveInstanceState(outState);
 149         outState.putParcelable(KEY_FILE, mFile);
 150     }
 151
 152     /**
 153      * Call this, when the user presses the up button.
 154      *
 155      * Tries to move up the current folder one level. If the parent folder was removed from the
 156      * database, it continues browsing up until finding an existing folders.
 157      *
 158      * return       Count of folder levels browsed up.
 159      */
 160     public int onBrowseUp() {
 161         OCFile parentDir = null;
 162         int moveCount = 0;
 163
 164         if(mFile != null){
 165             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 166
 167             String parentPath = null;
 168             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 169                 parentPath = new File(mFile.getRemotePath()).getParent();
 170                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 171                         parentPath + OCFile.PATH_SEPARATOR;
 172                 parentDir = storageManager.getFileByPath(parentPath);
 173                 moveCount++;
 174             } else {
 175                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 176             }
 177             while (parentDir == null) {
 178                 parentPath = new File(parentPath).getParent();
 179                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 180                         parentPath + OCFile.PATH_SEPARATOR;
 181                 parentDir = storageManager.getFileByPath(parentPath);
 182                 moveCount++;
 183             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 184             mFile = parentDir;
 185
 186             listDirectory(mFile);
 187
 188             onRefresh(false);
 189
 190             // restore index and top position
 191             restoreIndexAndTopPosition();
 192
 193         }   // else - should never happen now
 194
 195         return moveCount;
 196     }
 197
 198     @Override
 199     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 200         OCFile file = (OCFile) mAdapter.getItem(position);
 201         if (file != null) {
 202             if (file.isFolder()) {
 203                 // update state and view of this fragment
 204                 listDirectory(file);
 205                 // then, notify parent activity to let it update its state and view
 206                 mContainerActivity.onBrowsedDownTo(file);
 207                 // save index and top position
 208                 saveIndexAndTopPosition(position);
 209
 210             } else { /// Click on a file
 211                 if (PreviewImageFragment.canBePreviewed(file)) {
 212                     // preview image - it handles the download, if needed
 213                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 214                 } else if (PreviewTextFragment.canBePreviewed(file)){
 215                     ((FileDisplayActivity)mContainerActivity).startTextPreview(file);
 216                 } else if (file.isDown()) {
 217                     if (PreviewMediaFragment.canBePreviewed(file)) {
 218                         // media preview
 219                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 220                     } else {
 221                         mContainerActivity.getFileOperationsHelper().openFile(file);
 222                     }
 223
 224                 } else {
 225                     // automatic download, preview on finish
 226                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 227                 }
 228
 229             }
 230
 231         } else {
 232             Log_OC.d(TAG, "Null object in ListAdapter!!");
 233         }
 234
 235     }
 236
 237     /**
 238      * {@inheritDoc}
 239      */
 240     @Override
 241     public void onCreateContextMenu (
 242             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 243         super.onCreateContextMenu(menu, v, menuInfo);
 244         Bundle args = getArguments();
 245         boolean allowContextualActions =
 246                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 247         if (allowContextualActions) {
 248             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 249             inflater.inflate(R.menu.file_actions_menu, menu);
 250             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 251             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 252
 253             if (mContainerActivity.getStorageManager() != null) {
 254                 FileMenuFilter mf = new FileMenuFilter(
 255                     targetFile,
 256                     mContainerActivity.getStorageManager().getAccount(),
 257                     mContainerActivity,
 258                     getSherlockActivity()
 259                 );
 260                 mf.filter(menu);
 261             }
 262
 263             /// additional restrictions for this fragment
 264             // TODO allow in the future 'open with' for previewable files
 265             MenuItem item = menu.findItem(R.id.action_open_file_with);
 266             if (item != null) {
 267                 item.setVisible(false);
 268                 item.setEnabled(false);
 269             }
 270             /// TODO break this direct dependency on FileDisplayActivity... if possible
 271             FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 272             if (frag != null && frag instanceof FileDetailFragment &&
 273                     frag.getFile().getFileId() == targetFile.getFileId()) {
 274                 item = menu.findItem(R.id.action_see_details);
 275                 if (item != null) {
 276                     item.setVisible(false);
 277                     item.setEnabled(false);
 278                 }
 279             }
 280         }
 281     }
 282
 283
 284     /**
 285      * {@inhericDoc}
 286      */
 287     @Override
 288     public boolean onContextItemSelected (MenuItem item) {
 289         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 290         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 291         switch (item.getItemId()) {
 292             case R.id.action_share_file: {
 293                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(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                 mList.setSelectionFromTop(0, 0);
 396             }
 397             mFile = directory;
 398
 399             // Update Footer
 400             TextView footerText = (TextView) mFooterView.findViewById(R.id.footerText);
 401             Log_OC.d("footer", String.valueOf(System.currentTimeMillis()));
 402             footerText.setText(generateFooterText(directory));
 403             Log_OC.d("footer", String.valueOf(System.currentTimeMillis()));
 404         }
 405     }
 406
 407     private String generateFooterText(OCFile directory) {
 408         Integer files = 0;
 409         Integer folders = 0;
 410
 411         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 412         Vector<OCFile> mFiles = storageManager.getFolderContent(mFile);
 413
 414         for (OCFile ocFile : mFiles) {
 415             if (ocFile.isFolder()) {
 416                 folders++;
 417             } else {
 418                 files++;
 419             }
 420         }
 421
 422         String output = "";
 423
 424         if (files > 0){
 425             if (files == 1) {
 426                 output = output + files.toString() + " " + getResources().getString(R.string.file_list_file);
 427             } else {
 428                 output = output + files.toString() + " " + getResources().getString(R.string.file_list_files);
 429             }
 430         }
 431         if (folders > 0 && files > 0){
 432             output = output + ", ";
 433         }
 434         if (folders == 1) {
 435             output = output + folders.toString() + " " + getResources().getString(R.string.file_list_folder);
 436         } else if (folders > 1) {
 437             output = output + folders.toString() + " " + getResources().getString(R.string.file_list_folders);
 438         }
 439
 440         return output;
 441     }
 442
 443     public void sortByName(boolean descending) {
 444         mAdapter.setSortOrder(FileListListAdapter.SORT_NAME, descending);
 445     }
 446
 447     public void sortByDate(boolean descending) {
 448         mAdapter.setSortOrder(FileListListAdapter.SORT_DATE, descending);
 449     }
 450
 451     public void sortBySize(boolean descending) {
 452         mAdapter.setSortOrder(FileListListAdapter.SORT_SIZE, descending);
 453     }
 454
 455 }