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
  82     private OCFile mTargetFile;
  83
  84
  85     /**
  86      * {@inheritDoc}
  87      */
  88     @Override
  89     public void onAttach(Activity activity) {
  90         super.onAttach(activity);
  91         Log_OC.e(TAG, "onAttach");
  92         try {
  93             mContainerActivity = (FileFragment.ContainerActivity) activity;
  94
  95         } catch (ClassCastException e) {
  96             throw new ClassCastException(activity.toString() + " must implement " +
  97                     FileFragment.ContainerActivity.class.getSimpleName());
  98         }
  99         try {
 100             setOnRefreshListener((OnEnforceableRefreshListener) activity);
 101
 102         } catch (ClassCastException e) {
 103             throw new ClassCastException(activity.toString() + " must implement " +
 104                     SwipeRefreshLayout.OnRefreshListener.class.getSimpleName());
 105         }
 106     }
 107
 108
 109     @Override
 110     public void onDetach() {
 111         setOnRefreshListener(null);
 112         mContainerActivity = null;
 113         super.onDetach();
 114     }
 115
 116     /**
 117      * {@inheritDoc}
 118      */
 119     @Override
 120     public void onActivityCreated(Bundle savedInstanceState) {
 121         super.onActivityCreated(savedInstanceState);
 122         Log_OC.e(TAG, "onActivityCreated() start");
 123
 124         if (savedInstanceState != null) {
 125             mFile = savedInstanceState.getParcelable(KEY_FILE);
 126         }
 127
 128         mFooterView = ((LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
 129                         R.layout.list_footer, null, false);
 130         setFooterView(mFooterView);
 131
 132         Bundle args = getArguments();
 133         boolean justFolders = (args == null) ? false : args.getBoolean(ARG_JUST_FOLDERS, false);
 134         mAdapter = new FileListListAdapter(
 135                 justFolders,
 136                 getSherlockActivity(),
 137                 mContainerActivity
 138                 );
 139         setListAdapter(mAdapter);
 140
 141         registerForContextMenu(getGridView());
 142         getGridView().setOnCreateContextMenuListener(this);
 143   }
 144
 145     /**
 146      * Saves the current listed folder.
 147      */
 148     @Override
 149     public void onSaveInstanceState (Bundle outState) {
 150         super.onSaveInstanceState(outState);
 151         outState.putParcelable(KEY_FILE, mFile);
 152     }
 153
 154     /**
 155      * Call this, when the user presses the up button.
 156      *
 157      * Tries to move up the current folder one level. If the parent folder was removed from the
 158      * database, it continues browsing up until finding an existing folders.
 159      *
 160      * return       Count of folder levels browsed up.
 161      */
 162     public int onBrowseUp() {
 163         OCFile parentDir = null;
 164         int moveCount = 0;
 165
 166         if(mFile != null){
 167             FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 168
 169             String parentPath = null;
 170             if (mFile.getParentId() != FileDataStorageManager.ROOT_PARENT_ID) {
 171                 parentPath = new File(mFile.getRemotePath()).getParent();
 172                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 173                         parentPath + OCFile.PATH_SEPARATOR;
 174                 parentDir = storageManager.getFileByPath(parentPath);
 175                 moveCount++;
 176             } else {
 177                 parentDir = storageManager.getFileByPath(OCFile.ROOT_PATH);
 178             }
 179             while (parentDir == null) {
 180                 parentPath = new File(parentPath).getParent();
 181                 parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath :
 182                         parentPath + OCFile.PATH_SEPARATOR;
 183                 parentDir = storageManager.getFileByPath(parentPath);
 184                 moveCount++;
 185             }   // exit is granted because storageManager.getFileByPath("/") never returns null
 186             mFile = parentDir;
 187
 188             listDirectory(mFile);
 189
 190             onRefresh(false);
 191
 192             // restore index and top position
 193             restoreIndexAndTopPosition();
 194
 195         }   // else - should never happen now
 196
 197         return moveCount;
 198     }
 199
 200     @Override
 201     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 202         OCFile file = (OCFile) mAdapter.getItem(position);
 203         if (file != null) {
 204             if (file.isFolder()) {
 205                 // update state and view of this fragment
 206                 listDirectory(file);
 207                 // then, notify parent activity to let it update its state and view
 208                 mContainerActivity.onBrowsedDownTo(file);
 209                 // save index and top position
 210                 saveIndexAndTopPosition(position);
 211
 212             } else { /// Click on a file
 213                 if (PreviewImageFragment.canBePreviewed(file)) {
 214                     // preview image - it handles the download, if needed
 215                     ((FileDisplayActivity)mContainerActivity).startImagePreview(file);
 216
 217                 } else if (file.isDown()) {
 218                     if (PreviewMediaFragment.canBePreviewed(file)) {
 219                         // media preview
 220                         ((FileDisplayActivity)mContainerActivity).startMediaPreview(file, 0, true);
 221                     } else {
 222                         mContainerActivity.getFileOperationsHelper().openFile(file);
 223                     }
 224
 225                 } else {
 226                     // automatic download, preview on finish
 227                     ((FileDisplayActivity)mContainerActivity).startDownloadForPreview(file);
 228                 }
 229
 230             }
 231
 232         } else {
 233             Log_OC.d(TAG, "Null object in ListAdapter!!");
 234         }
 235
 236     }
 237
 238     /**
 239      * {@inheritDoc}
 240      */
 241     @Override
 242     public void onCreateContextMenu (
 243             ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 244         super.onCreateContextMenu(menu, v, menuInfo);
 245         Bundle args = getArguments();
 246         boolean allowContextualActions =
 247                 (args == null) ? true : args.getBoolean(ARG_ALLOW_CONTEXTUAL_ACTIONS, true);
 248         if (allowContextualActions) {
 249             MenuInflater inflater = getSherlockActivity().getMenuInflater();
 250             inflater.inflate(R.menu.file_actions_menu, menu);
 251             AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 252             OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 253
 254             if (mContainerActivity.getStorageManager() != null) {
 255                 FileMenuFilter mf = new FileMenuFilter(
 256                     targetFile,
 257                     mContainerActivity.getStorageManager().getAccount(),
 258                     mContainerActivity,
 259                     getSherlockActivity()
 260                 );
 261                 mf.filter(menu);
 262             }
 263
 264             /// TODO break this direct dependency on FileDisplayActivity... if possible
 265             MenuItem item = menu.findItem(R.id.action_open_file_with);
 266             FileFragment frag = ((FileDisplayActivity)getSherlockActivity()).getSecondFragment();
 267             if (frag != null && frag instanceof FileDetailFragment &&
 268                     frag.getFile().getFileId() == targetFile.getFileId()) {
 269                 item = menu.findItem(R.id.action_see_details);
 270                 if (item != null) {
 271                     item.setVisible(false);
 272                     item.setEnabled(false);
 273                 }
 274             }
 275         }
 276     }
 277
 278
 279     /**
 280      * {@inhericDoc}
 281      */
 282     @Override
 283     public boolean onContextItemSelected (MenuItem item) {
 284         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 285         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 286         switch (item.getItemId()) {
 287             case R.id.action_share_file: {
 288                 mContainerActivity.getFileOperationsHelper().shareFileWithLink(mTargetFile);
 289                 return true;
 290             }
 291             case R.id.action_open_file_with: {
 292                 mContainerActivity.getFileOperationsHelper().openFile(mTargetFile);
 293                 return true;
 294             }
 295             case R.id.action_unshare_file: {
 296                 mContainerActivity.getFileOperationsHelper().unshareFileWithLink(mTargetFile);
 297                 return true;
 298             }
 299             case R.id.action_rename_file: {
 300                 RenameFileDialogFragment dialog = RenameFileDialogFragment.newInstance(mTargetFile);
 301                 dialog.show(getFragmentManager(), FileDetailFragment.FTAG_RENAME_FILE);
 302                 return true;
 303             }
 304             case R.id.action_remove_file: {
 305                 RemoveFileDialogFragment dialog = RemoveFileDialogFragment.newInstance(mTargetFile);
 306                 dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 307                 return true;
 308             }
 309             case R.id.action_download_file:
 310             case R.id.action_sync_file: {
 311                 mContainerActivity.getFileOperationsHelper().syncFile(mTargetFile);
 312                 return true;
 313             }
 314             case R.id.action_cancel_download:
 315             case R.id.action_cancel_upload: {
 316                 ((FileDisplayActivity)mContainerActivity).cancelTransference(mTargetFile);
 317                 return true;
 318             }
 319             case R.id.action_see_details: {
 320                 mContainerActivity.showDetails(mTargetFile);
 321                 return true;
 322             }
 323             case R.id.action_send_file: {
 324                 // Obtain the file
 325                 if (!mTargetFile.isDown()) {  // Download the file
 326                     Log_OC.d(TAG, mTargetFile.getRemotePath() + " : File must be downloaded");
 327                     ((FileDisplayActivity)mContainerActivity).startDownloadForSending(mTargetFile);
 328
 329                 } else {
 330                     mContainerActivity.getFileOperationsHelper().sendDownloadedFile(mTargetFile);
 331                 }
 332                 return true;
 333             }
 334             case R.id.action_move: {
 335                 Intent action = new Intent(getActivity(), FolderPickerActivity.class);
 336
 337                 // Pass mTargetFile that contains info of selected file/folder
 338                 action.putExtra(FolderPickerActivity.EXTRA_FILE, mTargetFile);
 339                 getActivity().startActivityForResult(action, FileDisplayActivity.ACTION_MOVE_FILES);
 340                 return true;
 341             }
 342             default:
 343                 return super.onContextItemSelected(item);
 344         }
 345     }
 346
 347
 348     /**
 349      * Use this to query the {@link OCFile} that is currently
 350      * being displayed by this fragment
 351      * @return The currently viewed OCFile
 352      */
 353     public OCFile getCurrentFile(){
 354         return mFile;
 355     }
 356
 357     /**
 358      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 359      */
 360     public void listDirectory(){
 361         listDirectory(null);
 362     }
 363
 364     /**
 365      * Lists the given directory on the view. When the input parameter is null,
 366      * it will either refresh the last known directory. list the root
 367      * if there never was a directory.
 368      *
 369      * @param directory File to be listed
 370      */
 371     public void listDirectory(OCFile directory) {
 372         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 373         if (storageManager != null) {
 374
 375             // Check input parameters for null
 376             if(directory == null){
 377                 if(mFile != null){
 378                     directory = mFile;
 379                 } else {
 380                     directory = storageManager.getFileByPath("/");
 381                     if (directory == null) return; // no files, wait for sync
 382                 }
 383             }
 384
 385
 386             // If that's not a directory -> List its parent
 387             if(!directory.isFolder()){
 388                 Log_OC.w(TAG, "You see, that is not a directory -> " + directory.toString());
 389                 directory = storageManager.getFileById(directory.getParentId());
 390             }
 391
 392             mAdapter.swapDirectory(directory, storageManager);
 393             if (mFile == null || !mFile.equals(directory)) {
 394                 imageView.setSelection(0);
 395             }
 396             mFile = directory;
 397
 398             Vector<OCFile> files = storageManager.getFolderContent(directory);
 399             // Update Footer
 400             TextView footerText = (TextView) mFooterView.findViewById(R.id.footerText);
 401             footerText.setText(generateFooterText(directory));
 402             if (DisplayUtils.decideViewLayout(files)){
 403                 switchImageView();
 404             } else {
 405                 switchFileView();
 406             }
 407         }
 408     }
 409
 410     private String generateFooterText(OCFile directory) {
 411         Integer files = 0;
 412         Integer folders = 0;
 413
 414         FileDataStorageManager storageManager = mContainerActivity.getStorageManager();
 415         Vector<OCFile> mFiles = storageManager.getFolderContent(mFile);
 416
 417         for (OCFile ocFile : mFiles) {
 418             if (ocFile.isFolder()) {
 419                 folders++;
 420             } else {
 421                 files++;
 422             }
 423         }
 424
 425         String output = "";
 426
 427         if (files > 0){
 428             if (files == 1) {
 429                 output = output + files.toString() + " " + getResources().getString(R.string.file_list_file);
 430             } else {
 431                 output = output + files.toString() + " " + getResources().getString(R.string.file_list_files);
 432             }
 433         }
 434         if (folders > 0 && files > 0){
 435             output = output + ", ";
 436         }
 437         if (folders == 1) {
 438             output = output + folders.toString() + " " + getResources().getString(R.string.file_list_folder);
 439         } else if (folders > 1) {
 440             output = output + folders.toString() + " " + getResources().getString(R.string.file_list_folders);
 441         }
 442
 443         // Fix for showing or not to show the footerView
 444         if (folders == 0 && files == 0) {   // If no files or folders, remove footerView for allowing
 445                                             // to show the emptyList message
 446             removeFooterView(mFooterView);
 447         } else { // set a new footerView if there is not one for showing the number or files/folders
 448             if (getFooterViewCount()== 0) {
 449                 ((ViewGroup)mFooterView.getParent()).removeView(mFooterView);
 450                 setFooterView(mFooterView);
 451             }
 452         }
 453
 454         return output;
 455     }
 456
 457     public void sortByName(boolean descending) {
 458         mAdapter.setSortOrder(FileStorageUtils.SORT_NAME, descending);
 459     }
 460
 461     public void sortByDate(boolean descending) {
 462         mAdapter.setSortOrder(FileStorageUtils.SORT_DATE, descending);
 463     }
 464
 465     public void sortBySize(boolean descending) {
 466         mAdapter.setSortOrder(FileStorageUtils.SORT_SIZE, descending);
 467     }
 468
 469 }