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         if (mJustFolders) {
 132             removeFooterView(mFooterView);
 133         } else {
 134             setFooterView(mFooterView);
 135         }
 136
 137         Bundle args = getArguments();
 138         mJustFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 139         mAdapter = new FileListListAdapter(
 140                 mJustFolders,
 141                 getSherlockActivity(),
 142                 mContainerActivity
 143                 );
 144         setListAdapter(mAdapter);
 145
 146         registerForContextMenu(getGridView());
 147         getGridView().setOnCreateContextMenuListener(this);
 148   }
 149
 150     /**
 151      * Saves the current listed folder.
 152      */
 153     @Override
 154     public void onSaveInstanceState (Bundle outState) {
 155         super.onSaveInstanceState(outState);
 156         outState.putParcelable(KEY_FILE, mFile);
 157     }
 158
 159     /**
 160      * Call this, when the user presses the up button.
 161      *
 162      * Tries to move up the current folder one level. If the parent folder was removed from the
 163      * database, it continues browsing up until finding an existing folders.
 164      *
 165      * return       Count of folder levels browsed up.
 166      */
 167     public int onBrowseUp() {
 168         OCFile parentDir = null;
 169         int moveCount = 0;
 170
 171         if(mFile != null){
 172             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 173
 174             String parentPath = null;
 175             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 176                 parentPath = new File(mFile.getRemotePath()).getParent();
 177                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 178                         parentPath + OCFile.PATH_SEPARATOR;
 179                 parentDir = storageManager.getFileByPath(parentPath);
 180                 moveCount++;
 181             } else {
 182                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 183             }
 184             while (parentDir == null) {
 185                 parentPath = new File(parentPath).getParent();
 186                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 187                         parentPath + OCFile.PATH_SEPARATOR;
 188                 parentDir = storageManager.getFileByPath(parentPath);
 189                 moveCount++;
 190             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 191             mFile = parentDir;
 192
 193             listDirectory(mFile);
 194
 195             onRefresh(false);
 196
 197             // restore index and top position
 198             restoreIndexAndTopPosition();
 199
 200         }   // else - should never happen now
 201
 202         return moveCount;
 203     }
 204
 205     @Override
 206     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 207         OCFile file = (OCFile) mAdapter.getItem(position);
 208         if (file != null) {
 209             if (file.isFolder()) {
 210                 // update state and view of this fragment
 211                 listDirectory(file);
 212                 // then, notify parent activity to let it update its state and view
 213                 mContainerActivity.onBrowsedDownTo(file);
 214                 // save index and top position
 215                 saveIndexAndTopPosition(position);
 216
 217             } else { /// Click on a file
 218                 if (PreviewImageFragment.canBePreviewed(file)) {
 219                     // preview image - it handles the download, if needed
 220                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 221
 222                 } else if (file.isDown()) {
 223                     if (PreviewMediaFragment.canBePreviewed(file)) {
 224                         // media preview
 225                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 226                     } else {
 227                         mContainerActivity.getFileOperationsHelper().openFile(file);
 228                     }
 229
 230                 } else {
 231                     // automatic download, preview on finish
 232                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 233                 }
 234
 235             }
 236
 237         } else {
 238             Log_OC.d(TAG, "Null object in ListAdapter!!");
 239         }
 240
 241     }
 242
 243     /**
 244      * {@inheritDoc}
 245      */
 246     @Override
 247     public void onCreateContextMenu (
 248             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 249         super.onCreateContextMenu(menu, v, menuInfo);
 250         Bundle args = getArguments();
 251         boolean allowContextualActions =
 252                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 253         if (allowContextualActions) {
 254             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 255             inflater.inflate(R.menu.file_actions_menu, menu);
 256             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 257             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 258
 259             if (mContainerActivity.getStorageManager() != null) {
 260                 FileMenuFilter mf = new FileMenuFilter(
 261                     targetFile,
 262                     mContainerActivity.getStorageManager().getAccount(),
 263                     mContainerActivity,
 264                     getSherlockActivity()
 265                 );
 266                 mf.filter(menu);
 267             }
 268
 269             /// TODO break this direct dependency on FileDisplayActivity... if possible
 270             MenuItem item = menu.findItem(R.id.action_open_file_with);
 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_open_file_with: {
 297                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 298                 return true;
 299             }
 300             case R.id.action_unshare_file: {
 301                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 302                 return true;
 303             }
 304             case R.id.action_rename_file: {
 305                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 306                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 307                 return true;
 308             }
 309             case R.id.action_remove_file: {
 310                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 311                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 312                 return true;
 313             }
 314             case R.id.action_download_file:
 315             case R.id.action_sync_file: {
 316                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 317                 return true;
 318             }
 319             case R.id.action_cancel_download:
 320             case R.id.action_cancel_upload: {
 321                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 322                 return true;
 323             }
 324             case R.id.action_see_details: {
 325                 mContainerActivity.showDetails(mTargetFile);
 326                 return true;
 327             }
 328             case R.id.action_send_file: {
 329                 // Obtain the file
 330                 if (!mTargetFile.isDown()) {  // Download the file
 331                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 332                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 333
 334                 } else {
 335                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 336                 }
 337                 return true;
 338             }
 339             case R.id.action_move: {
 340                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 341
 342                 // Pass mTargetFile that contains info of selected file/folder
 343                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 344                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 345                 return true;
 346             }
 347             default:
 348                 return super.onContextItemSelected(item);
 349         }
 350     }
 351
 352
 353     /**
 354      * Use this to query the {@link OCFile} that is currently
 355      * being displayed by this fragment
 356      * @return The currently viewed OCFile
 357      */
 358     public OCFile getCurrentFile(){
 359         return mFile;
 360     }
 361
 362     /**
 363      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 364      */
 365     public void listDirectory(){
 366         listDirectory(null);
 367     }
 368
 369     /**
 370      * Lists the given directory on the view. When the input parameter is null,
 371      * it will either refresh the last known directory. list the root
 372      * if there never was a directory.
 373      *
 374      * @param directory File to be listed
 375      */
 376     public void listDirectory(OCFile directory) {
 377         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 378         if (storageManager != null) {
 379
 380             // Check input parameters for null
 381             if(directory == null){
 382                 if(mFile != null){
 383                     directory = mFile;
 384                 } else {
 385                     directory = storageManager.getFileByPath("/");
 386                     if (directory == null) return; // no files, wait for sync
 387                 }
 388             }
 389
 390
 391             // If that's not a directory -> List its parent
 392             if(!directory.isFolder()){
 393                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 394                 directory = storageManager.getFileById(directory.getParentId());
 395             }
 396
 397             mAdapter.swapDirectory(directory, storageManager);
 398             if (mFile == null || !mFile.equals(directory)) {
 399                 imageView.setSelection(0);
 400             }
 401             mFile = directory;
 402
 403             Vector<OCFile> files = storageManager.getFolderContent(directory);
 404             // Update Footer
 405             TextView footerText = (TextView) mFooterView.findViewById(R.id.footerText);
 406             footerText.setText(generateFooterText(directory));
 407             if (DisplayUtils.decideViewLayout(files) && !mJustFolders){
 408                 switchImageView();
 409             } else {
 410                 switchFileView();
 411             }
 412         }
 413     }
 414
 415     private String generateFooterText(OCFile directory) {
 416         Integer files = 0;
 417         Integer folders = 0;
 418
 419         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 420         Vector<OCFile> mFiles = storageManager.getFolderContent(mFile);
 421
 422         for (OCFile ocFile : mFiles) {
 423             if (ocFile.isFolder()) {
 424                 folders++;
 425             } else {
 426                 files++;
 427             }
 428         }
 429
 430         String output = "";
 431
 432         if (files > 0){
 433             if (files == 1) {
 434                 output = output + files.toString() + " " + getResources().getString(R.string.file_list_file);
 435             } else {
 436                 output = output + files.toString() + " " + getResources().getString(R.string.file_list_files);
 437             }
 438         }
 439         if (folders > 0 && files > 0){
 440             output = output + ", ";
 441         }
 442         if (folders == 1) {
 443             output = output + folders.toString() + " " + getResources().getString(R.string.file_list_folder);
 444         } else if (folders > 1) {
 445             output = output + folders.toString() + " " + getResources().getString(R.string.file_list_folders);
 446         }
 447
 448         // Fix for showing or not to show the footerView
 449         if (mJustFolders || (folders == 0 && files == 0)) {
 450                 // If fragment to choose target folder for a MOVE or
 451                 // no files or folders,
 452                 // remove footerView for allowing to show the emptyList message
 453             removeFooterView(mFooterView);
 454         } else { // set a new footerView if there is not one for showing the number or files/folders
 455             if (getFooterViewCount()== 0) {
 456                 ((ViewGroup)mFooterView.getParent()).removeView(mFooterView);
 457                 setFooterView(mFooterView);
 458             }
 459         }
 460
 461         return output;
 462     }
 463
 464     public void sortByName(boolean descending) {
 465         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 466     }
 467
 468     public void sortByDate(boolean descending) {
 469         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 470     }
 471
 472     public void sortBySize(boolean descending) {
 473         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 474     }
 475
 476 }