src/com/owncloud/android/ui/fragment/OCFileListFragment.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   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.ArrayList;
  22 import java.util.List;
  23
  24 import com.owncloud.android.AccountUtils;
  25 import com.owncloud.android.R;
  26 import com.owncloud.android.datamodel.DataStorageManager;
  27 import com.owncloud.android.datamodel.OCFile;
  28 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  29 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  30 import com.owncloud.android.network.OwnCloudClientUtils;
  31 import com.owncloud.android.operations.OnRemoteOperationListener;
  32 import com.owncloud.android.operations.RemoteOperation;
  33 import com.owncloud.android.operations.RemoveFileOperation;
  34 import com.owncloud.android.operations.RenameFileOperation;
  35 import com.owncloud.android.operations.SynchronizeFileOperation;
  36 import com.owncloud.android.ui.FragmentListView;
  37 import com.owncloud.android.ui.activity.FileDisplayActivity;
  38 import com.owncloud.android.ui.activity.TransferServiceGetter;
  39 import com.owncloud.android.ui.adapter.FileListListAdapter;
  40 import com.owncloud.android.ui.dialog.EditNameDialog;
  41 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  42 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  43
  44 import eu.alefzero.webdav.WebdavClient;
  45 import eu.alefzero.webdav.WebdavUtils;
  46
  47 import android.accounts.Account;
  48 import android.app.Activity;
  49 import android.content.ActivityNotFoundException;
  50 import android.content.Intent;
  51 import android.net.Uri;
  52 import android.os.Bundle;
  53 import android.os.Handler;
  54 import android.support.v4.app.DialogFragment;
  55 import android.util.Log;
  56 import android.view.ContextMenu;
  57 import android.view.MenuInflater;
  58 import android.view.MenuItem;
  59 import android.view.View;
  60 import android.webkit.MimeTypeMap;
  61 import android.widget.AdapterView;
  62 import android.widget.Toast;
  63 import android.widget.AdapterView.AdapterContextMenuInfo;
  64
  65 /**
  66  * A Fragment that lists all files and folders in a given path.
  67  *
  68  * @author Bartek Przybylski
  69  *
  70  */
  71 public class OCFileListFragment extends FragmentListView implements EditNameDialogListener, ConfirmationDialogFragmentListener {
  72     private static final String TAG = "FileListFragment";
  73     private static final String SAVED_LIST_POSITION = "LIST_POSITION";
  74
  75     private OCFileListFragment.ContainerActivity mContainerActivity;
  76
  77     private OCFile mFile = null;
  78     private FileListListAdapter mAdapter;
  79
  80     private Handler mHandler;
  81     private OCFile mTargetFile;
  82
  83     private DialogFragment mCurrentDialog;
  84
  85     /**
  86      * {@inheritDoc}
  87      */
  88     @Override
  89     public void onAttach(Activity activity) {
  90         super.onAttach(activity);
  91         try {
  92             mContainerActivity = (ContainerActivity) activity;
  93         } catch (ClassCastException e) {
  94             throw new ClassCastException(activity.toString() + " must implement " + OCFileListFragment.ContainerActivity.class.getSimpleName());
  95         }
  96     }
  97
  98
  99     /**
 100      * {@inheritDoc}
 101      */
 102     @Override
 103     public void onActivityCreated(Bundle savedInstanceState) {
 104         Log.i(TAG, "onActivityCreated() start");
 105
 106         super.onActivityCreated(savedInstanceState);
 107         mAdapter = new FileListListAdapter(mContainerActivity.getInitialDirectory(), mContainerActivity.getStorageManager(), getActivity(), mContainerActivity);
 108         setListAdapter(mAdapter);
 109
 110         if (savedInstanceState != null) {
 111             Log.i(TAG, "savedInstanceState is not null");
 112             int position = savedInstanceState.getInt(SAVED_LIST_POSITION);
 113             setReferencePosition(position);
 114         }
 115
 116         registerForContextMenu(getListView());
 117         getListView().setOnCreateContextMenuListener(this);
 118
 119         mHandler = new Handler();
 120
 121         Log.i(TAG, "onActivityCreated() stop");
 122     }
 123
 124
 125
 126     @Override
 127     public void onSaveInstanceState(Bundle savedInstanceState) {
 128         Log.i(TAG, "onSaveInstanceState() start");
 129
 130         savedInstanceState.putInt(SAVED_LIST_POSITION, getReferencePosition());
 131
 132         Log.i(TAG, "onSaveInstanceState() stop");
 133     }
 134
 135
 136     @Override
 137     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
 138         OCFile file = (OCFile) mAdapter.getItem(position);
 139         if (file != null) {
 140             /// Click on a directory
 141             if (file.getMimetype().equals("DIR")) {
 142                 // just local updates
 143                 mFile = file;
 144                 listDirectory(file);
 145                 // any other updates are let to the container Activity
 146                 mContainerActivity.onDirectoryClick(file);
 147
 148             } else {    /// Click on a file
 149                 mContainerActivity.onFileClick(file);
 150             }
 151
 152         } else {
 153             Log.d(TAG, "Null object in ListAdapter!!");
 154         }
 155
 156     }
 157
 158     /**
 159      * {@inheritDoc}
 160      */
 161     @Override
 162     public void onCreateContextMenu (ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
 163         super.onCreateContextMenu(menu, v, menuInfo);
 164         MenuInflater inflater = getActivity().getMenuInflater();
 165         inflater.inflate(R.menu.file_context_menu, menu);
 166         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
 167         OCFile targetFile = (OCFile) mAdapter.getItem(info.position);
 168         List<Integer> toHide = new ArrayList<Integer>();
 169         List<Integer> toDisable = new ArrayList<Integer>();
 170
 171         MenuItem item = null;
 172         if (targetFile.isDirectory()) {
 173             // contextual menu for folders
 174             toHide.add(R.id.open_file_item);
 175             toHide.add(R.id.download_file_item);
 176             toHide.add(R.id.cancel_download_item);
 177             toHide.add(R.id.cancel_upload_item);
 178             if (    mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile) ||
 179                     mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)           ) {
 180                 toDisable.add(R.id.rename_file_item);
 181                 toDisable.add(R.id.remove_file_item);
 182
 183             }
 184
 185         } else {
 186             // contextual menu for regular files
 187             if (targetFile.isDown()) {
 188                 toHide.add(R.id.cancel_download_item);
 189                 toHide.add(R.id.cancel_upload_item);
 190                 item = menu.findItem(R.id.download_file_item);
 191                 if (item != null) {
 192                     item.setTitle(R.string.filedetails_sync_file);
 193                 }
 194             } else {
 195                 toHide.add(R.id.open_file_item);
 196             }
 197             if ( mContainerActivity.getFileDownloaderBinder().isDownloading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 198                 toHide.add(R.id.download_file_item);
 199                 toHide.add(R.id.cancel_upload_item);
 200                 toDisable.add(R.id.open_file_item);
 201                 toDisable.add(R.id.rename_file_item);
 202                 toDisable.add(R.id.remove_file_item);
 203
 204             } else if ( mContainerActivity.getFileUploaderBinder().isUploading(AccountUtils.getCurrentOwnCloudAccount(getActivity()), targetFile)) {
 205                 toHide.add(R.id.download_file_item);
 206                 toHide.add(R.id.cancel_download_item);
 207                 toDisable.add(R.id.open_file_item);
 208                 toDisable.add(R.id.rename_file_item);
 209                 toDisable.add(R.id.remove_file_item);
 210
 211             } else {
 212                 toHide.add(R.id.cancel_download_item);
 213                 toHide.add(R.id.cancel_upload_item);
 214             }
 215         }
 216
 217         for (int i : toHide) {
 218             item = menu.findItem(i);
 219             if (item != null) {
 220                 item.setVisible(false);
 221                 item.setEnabled(false);
 222             }
 223         }
 224
 225         for (int i : toDisable) {
 226             item = menu.findItem(i);
 227             if (item != null) {
 228                 item.setEnabled(false);
 229             }
 230         }
 231     }
 232
 233
 234     /**
 235      * {@inhericDoc}
 236      */
 237     @Override
 238     public boolean onContextItemSelected (MenuItem item) {
 239         AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
 240         mTargetFile = (OCFile) mAdapter.getItem(info.position);
 241         switch (item.getItemId()) {
 242             case R.id.rename_file_item: {
 243                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), mTargetFile.getFileName(), this);
 244                 dialog.show(getFragmentManager(), EditNameDialog.TAG);
 245                 return true;
 246             }
 247             case R.id.remove_file_item: {
 248                 int messageStringId = R.string.confirmation_remove_alert;
 249                 int posBtnStringId = R.string.confirmation_remove_remote;
 250                 int neuBtnStringId = -1;
 251                 if (mTargetFile.isDirectory()) {
 252                     messageStringId = R.string.confirmation_remove_folder_alert;
 253                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 254                     neuBtnStringId = R.string.confirmation_remove_folder_local;
 255                 } else if (mTargetFile.isDown()) {
 256                     posBtnStringId = R.string.confirmation_remove_remote_and_local;
 257                     neuBtnStringId = R.string.confirmation_remove_local;
 258                 }
 259                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 260                         messageStringId,
 261                         new String[]{mTargetFile.getFileName()},
 262                         posBtnStringId,
 263                         neuBtnStringId,
 264                         R.string.common_cancel);
 265                 confDialog.setOnConfirmationListener(this);
 266                 mCurrentDialog = confDialog;
 267                 mCurrentDialog.show(getFragmentManager(), FileDetailFragment.FTAG_CONFIRMATION);
 268                 return true;
 269             }
 270             case R.id.open_file_item: {
 271                 String storagePath = mTargetFile.getStoragePath();
 272                 String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 273                 try {
 274                     Intent i = new Intent(Intent.ACTION_VIEW);
 275                     i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mTargetFile.getMimetype());
 276                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 277                     startActivity(i);
 278
 279                 } catch (Throwable t) {
 280                     Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mTargetFile.getMimetype());
 281                     boolean toastIt = true;
 282                     String mimeType = "";
 283                     try {
 284                         Intent i = new Intent(Intent.ACTION_VIEW);
 285                         mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 286                         if (mimeType == null || !mimeType.equals(mTargetFile.getMimetype())) {
 287                             if (mimeType != null) {
 288                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 289                             } else {
 290                                 // desperate try
 291                                 i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), "*/*");
 292                             }
 293                             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 294                             startActivity(i);
 295                             toastIt = false;
 296                         }
 297
 298                     } catch (IndexOutOfBoundsException e) {
 299                         Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 300
 301                     } catch (ActivityNotFoundException e) {
 302                         Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 303
 304                     } catch (Throwable th) {
 305                         Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 306
 307                     } finally {
 308                         if (toastIt) {
 309                             Toast.makeText(getActivity(), "There is no application to handle file " + mTargetFile.getFileName(), Toast.LENGTH_SHORT).show();
 310                         }
 311                     }
 312
 313                 }
 314                 return true;
 315             }
 316             case R.id.download_file_item: {
 317                 Account account = AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity());
 318                 RemoteOperation operation = new SynchronizeFileOperation(mTargetFile, null, mContainerActivity.getStorageManager(), account, true, false, getSherlockActivity());
 319                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(account, getSherlockActivity().getApplicationContext());
 320                 operation.execute(wc, mContainerActivity, mHandler);
 321                 getSherlockActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 322                 return true;
 323             }
 324             case R.id.cancel_download_item: {
 325                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 326                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 327                 if (downloaderBinder != null && downloaderBinder.isDownloading(account, mTargetFile)) {
 328                     downloaderBinder.cancel(account, mTargetFile);
 329                     listDirectory();
 330                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 331                 }
 332                 return true;
 333             }
 334             case R.id.cancel_upload_item: {
 335                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 336                 Account account = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 337                 if (uploaderBinder != null && uploaderBinder.isUploading(account, mTargetFile)) {
 338                     uploaderBinder.cancel(account, mTargetFile);
 339                     listDirectory();
 340                     mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 341                 }
 342                 return true;
 343             }
 344             default:
 345                 return super.onContextItemSelected(item);
 346         }
 347     }
 348
 349
 350     /**
 351      * Call this, when the user presses the up button
 352      */
 353     public void onNavigateUp() {
 354         OCFile parentDir = null;
 355
 356         if(mFile != null){
 357             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 358             parentDir = storageManager.getFileById(mFile.getParentId());
 359             mFile = parentDir;
 360         }
 361         listDirectory(parentDir);
 362     }
 363
 364     /**
 365      * Use this to query the {@link OCFile} that is currently
 366      * being displayed by this fragment
 367      * @return The currently viewed OCFile
 368      */
 369     public OCFile getCurrentFile(){
 370         return mFile;
 371     }
 372
 373     /**
 374      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 375      */
 376     public void listDirectory(){
 377         listDirectory(null);
 378     }
 379
 380     /**
 381      * Lists the given directory on the view. When the input parameter is null,
 382      * it will either refresh the last known directory, or list the root
 383      * if there never was a directory.
 384      *
 385      * @param directory File to be listed
 386      */
 387     public void listDirectory(OCFile directory) {
 388         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 389         if (storageManager != null) {
 390
 391             // Check input parameters for null
 392             if(directory == null){
 393                 if(mFile != null){
 394                     directory = mFile;
 395                 } else {
 396                     directory = storageManager.getFileByPath("/");
 397                     if (directory == null) return; // no files, wait for sync
 398                 }
 399             }
 400
 401
 402             // If that's not a directory -> List its parent
 403             if(!directory.isDirectory()){
 404                 Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 405                 directory = storageManager.getFileById(directory.getParentId());
 406             }
 407
 408             mAdapter.swapDirectory(directory, storageManager);
 409             if (mFile == null || !mFile.equals(directory)) {
 410                 mList.setSelectionFromTop(0, 0);
 411             }
 412             mFile = directory;
 413         }
 414     }
 415
 416
 417
 418     /**
 419      * Interface to implement by any Activity that includes some instance of FileListFragment
 420      *
 421      * @author David A. Velasco
 422      */
 423     public interface ContainerActivity extends TransferServiceGetter, OnRemoteOperationListener {
 424
 425         /**
 426          * Callback method invoked when a directory is clicked by the user on the files list
 427          *
 428          * @param file
 429          */
 430         public void onDirectoryClick(OCFile file);
 431
 432         /**
 433          * Callback method invoked when a file (non directory) is clicked by the user on the files list
 434          *
 435          * @param file
 436          */
 437         public void onFileClick(OCFile file);
 438
 439         /**
 440          * Getter for the current DataStorageManager in the container activity
 441          */
 442         public DataStorageManager getStorageManager();
 443
 444
 445         /**
 446          * Callback method invoked when the parent activity is fully created to get the directory to list firstly.
 447          *
 448          * @return  Directory to list firstly. Can be NULL.
 449          */
 450         public OCFile getInitialDirectory();
 451
 452
 453         /**
 454          * Callback method invoked when a the 'transfer state' of a file changes.
 455          *
 456          * This happens when a download or upload is started or ended for a file.
 457          *
 458          * This method is necessary by now to update the user interface of the double-pane layout in tablets
 459          * because methods {@link FileDownloaderBinder#isDownloading(Account, OCFile)} and {@link FileUploaderBinder#isUploading(Account, OCFile)}
 460          * won't provide the needed response before the method where this is called finishes.
 461          *
 462          * TODO Remove this when the transfer state of a file is kept in the database (other thing TODO)
 463          *
 464          * @param file          OCFile which state changed.
 465          * @param downloading   Flag signaling if the file is now downloading.
 466          * @param uploading     Flag signaling if the file is now uploading.
 467          */
 468         public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading);
 469
 470     }
 471
 472
 473     @Override
 474     public void onDismiss(EditNameDialog dialog) {
 475         if (dialog.getResult()) {
 476             String newFilename = dialog.getNewFilename();
 477             Log.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 478             RemoteOperation operation = new RenameFileOperation(mTargetFile,
 479                                                                 AccountUtils.getCurrentOwnCloudAccount(getActivity()),
 480                                                                 newFilename,
 481                                                                 mContainerActivity.getStorageManager());
 482             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 483             operation.execute(wc, mContainerActivity, mHandler);
 484             getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 485         }
 486     }
 487
 488
 489     @Override
 490     public void onConfirmation(String callerTag) {
 491         if (callerTag.equals(FileDetailFragment.FTAG_CONFIRMATION)) {
 492             if (mContainerActivity.getStorageManager().getFileById(mTargetFile.getFileId()) != null) {
 493                 RemoteOperation operation = new RemoveFileOperation( mTargetFile,
 494                                                                     true,
 495                                                                     mContainerActivity.getStorageManager());
 496                 WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(AccountUtils.getCurrentOwnCloudAccount(getSherlockActivity()), getSherlockActivity().getApplicationContext());
 497                 operation.execute(wc, mContainerActivity, mHandler);
 498
 499                 getActivity().showDialog(FileDisplayActivity.DIALOG_SHORT_WAIT);
 500             }
 501             mCurrentDialog.dismiss();
 502             mCurrentDialog = null;
 503         }
 504     }
 505
 506     @Override
 507     public void onNeutral(String callerTag) {
 508         File f = null;
 509         if (mTargetFile.isDirectory()) {
 510             // TODO run in a secondary thread?
 511             mContainerActivity.getStorageManager().removeDirectory(mTargetFile, false, true);
 512
 513         } else if (mTargetFile.isDown() && (f = new File(mTargetFile.getStoragePath())).exists()) {
 514             f.delete();
 515             mTargetFile.setStoragePath(null);
 516             mContainerActivity.getStorageManager().saveFile(mTargetFile);
 517         }
 518         mCurrentDialog.dismiss();
 519         mCurrentDialog = null;
 520         listDirectory();
 521         mContainerActivity.onTransferStateChanged(mTargetFile, false, false);
 522     }
 523
 524     @Override
 525     public void onCancel(String callerTag) {
 526         Log.d(TAG, "REMOVAL CANCELED");
 527         mCurrentDialog.dismiss();
 528         mCurrentDialog = null;
 529     }
 530
 531
 532 }