src/com/owncloud/android/ui/preview/PreviewMediaFragment.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012-2013 ownCloud Inc.
   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 2 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.preview;
  19
  20 import java.io.File;
  21 import java.util.ArrayList;
  22 import java.util.List;
  23
  24 import android.accounts.Account;
  25 import android.app.Activity;
  26 import android.app.AlertDialog;
  27 import android.content.ActivityNotFoundException;
  28 import android.content.ComponentName;
  29 import android.content.Context;
  30 import android.content.DialogInterface;
  31 import android.content.Intent;
  32 import android.content.ServiceConnection;
  33 import android.media.MediaPlayer;
  34 import android.media.MediaPlayer.OnCompletionListener;
  35 import android.media.MediaPlayer.OnErrorListener;
  36 import android.media.MediaPlayer.OnPreparedListener;
  37 import android.net.Uri;
  38 import android.os.Bundle;
  39 import android.os.Handler;
  40 import android.os.IBinder;
  41 import android.support.v4.app.FragmentTransaction;
  42 import android.util.Log;
  43 import android.view.LayoutInflater;
  44 import android.view.MotionEvent;
  45 import android.view.View;
  46 import android.view.View.OnTouchListener;
  47 import android.view.ViewGroup;
  48 import android.webkit.MimeTypeMap;
  49 import android.widget.ImageView;
  50 import android.widget.MediaController;
  51 import android.widget.Toast;
  52 import android.widget.VideoView;
  53
  54 import com.actionbarsherlock.app.SherlockFragment;
  55 import com.actionbarsherlock.view.Menu;
  56 import com.actionbarsherlock.view.MenuInflater;
  57 import com.actionbarsherlock.view.MenuItem;
  58 import com.owncloud.android.datamodel.FileDataStorageManager;
  59 import com.owncloud.android.datamodel.OCFile;
  60 import com.owncloud.android.media.MediaService;
  61 import com.owncloud.android.media.MediaServiceBinder;
  62 import com.owncloud.android.network.OwnCloudClientUtils;
  63 import com.owncloud.android.operations.OnRemoteOperationListener;
  64 import com.owncloud.android.operations.RemoteOperation;
  65 import com.owncloud.android.operations.RemoteOperationResult;
  66 import com.owncloud.android.operations.RemoveFileOperation;
  67 import com.owncloud.android.ui.activity.FileDetailActivity;
  68 import com.owncloud.android.ui.activity.FileDisplayActivity;
  69 import com.owncloud.android.ui.activity.TransferServiceGetter;
  70 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment;
  71 import com.owncloud.android.ui.fragment.FileDetailFragment;
  72 import com.owncloud.android.ui.fragment.FileFragment;
  73 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  74 import com.owncloud.android.ui.fragment.FileFragment.ContainerActivity;
  75
  76 import com.owncloud.android.R;
  77 import eu.alefzero.webdav.WebdavClient;
  78 import eu.alefzero.webdav.WebdavUtils;
  79
  80 /**
  81  * This fragment shows a preview of a downloaded media file (audio or video).
  82  *
  83  * Trying to get an instance with NULL {@link OCFile} or ownCloud {@link Account} values will produce an {@link IllegalStateException}.
  84  *
  85  * By now, if the {@link OCFile} passed is not downloaded, an {@link IllegalStateException} is generated on instantiation too.
  86  *
  87  * @author David A. Velasco
  88  */
  89 public class PreviewMediaFragment extends SherlockFragment implements
  90         OnTouchListener , FileFragment,
  91         ConfirmationDialogFragment.ConfirmationDialogFragmentListener, OnRemoteOperationListener  {
  92
  93     public static final String EXTRA_FILE = "FILE";
  94     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  95     private static final String EXTRA_PLAY_POSITION = "PLAY_POSITION";
  96
  97     private View mView;
  98     private OCFile mFile;
  99     private Account mAccount;
 100     private FileDataStorageManager mStorageManager;
 101     private ImageView mImagePreview;
 102     private VideoView mVideoPreview;
 103     private int mSavedPlaybackPosition;
 104
 105     private Handler mHandler;
 106     private RemoteOperation mLastRemoteOperation;
 107
 108     private MediaServiceBinder mMediaServiceBinder = null;
 109     private MediaController mMediaController = null;
 110     private MediaServiceConnection mMediaServiceConnection = null;
 111     private VideoHelper mVideoHelper;
 112
 113     private static final String TAG = PreviewMediaFragment.class.getSimpleName();
 114
 115
 116     /**
 117      * Creates a fragment to preview a file.
 118      *
 119      * When 'fileToDetail' or 'ocAccount' are null
 120      *
 121      * @param fileToDetail      An {@link OCFile} to preview in the fragment
 122      * @param ocAccount         An ownCloud account; needed to start downloads
 123      */
 124     public PreviewMediaFragment(OCFile fileToDetail, Account ocAccount) {
 125         mFile = fileToDetail;
 126         mAccount = ocAccount;
 127         mSavedPlaybackPosition = 0;
 128         mStorageManager = null; // we need a context to init this; the container activity is not available yet at this moment
 129     }
 130
 131
 132     /**
 133      *  Creates an empty fragment for previews.
 134      *
 135      *  MUST BE KEPT: the system uses it when tries to reinstantiate a fragment automatically (for instance, when the device is turned a aside).
 136      *
 137      *  DO NOT CALL IT: an {@link OCFile} and {@link Account} must be provided for a successful construction
 138      */
 139     public PreviewMediaFragment() {
 140         mFile = null;
 141         mAccount = null;
 142         mSavedPlaybackPosition = 0;
 143         mStorageManager = null;
 144     }
 145
 146
 147     /**
 148      * {@inheritDoc}
 149      */
 150     @Override
 151     public void onCreate(Bundle savedInstanceState) {
 152         super.onCreate(savedInstanceState);
 153         mHandler = new Handler();
 154         setHasOptionsMenu(true);
 155     }
 156
 157
 158     /**
 159      * {@inheritDoc}
 160      */
 161     @Override
 162     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 163             Bundle savedInstanceState) {
 164         super.onCreateView(inflater, container, savedInstanceState);
 165
 166         mView = inflater.inflate(R.layout.file_preview, container, false);
 167
 168         mImagePreview = (ImageView)mView.findViewById(R.id.image_preview);
 169         mImagePreview.setOnTouchListener(this);
 170         mVideoPreview = (VideoView)mView.findViewById(R.id.video_preview);
 171
 172         //updateFileDetails(false);
 173         return mView;
 174     }
 175
 176
 177     /**
 178      * {@inheritDoc}
 179      */
 180     @Override
 181     public void onAttach(Activity activity) {
 182         super.onAttach(activity);
 183         if (!(activity instanceof FileFragment.ContainerActivity))
 184             throw new ClassCastException(activity.toString() + " must implement " + FileFragment.ContainerActivity.class.getSimpleName());
 185     }
 186
 187
 188     /**
 189      * {@inheritDoc}
 190      */
 191     @Override
 192     public void onActivityCreated(Bundle savedInstanceState) {
 193         super.onActivityCreated(savedInstanceState);
 194
 195         mStorageManager = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());
 196         if (savedInstanceState != null) {
 197             mFile = savedInstanceState.getParcelable(PreviewMediaFragment.EXTRA_FILE);
 198             mAccount = savedInstanceState.getParcelable(PreviewMediaFragment.EXTRA_ACCOUNT);
 199             mSavedPlaybackPosition = savedInstanceState.getInt(PreviewMediaFragment.EXTRA_PLAY_POSITION);
 200
 201         }
 202         if (mFile == null) {
 203             throw new IllegalStateException("Instanced with a NULL OCFile");
 204         }
 205         if (mAccount == null) {
 206             throw new IllegalStateException("Instanced with a NULL ownCloud Account");
 207         }
 208         if (!mFile.isDown()) {
 209             throw new IllegalStateException("There is no local file to preview");
 210         }
 211         if (mFile.isVideo()) {
 212             mVideoPreview.setVisibility(View.VISIBLE);
 213             mImagePreview.setVisibility(View.GONE);
 214             prepareVideo();
 215
 216         } else {
 217             mVideoPreview.setVisibility(View.GONE);
 218             mImagePreview.setVisibility(View.VISIBLE);
 219         }
 220
 221     }
 222
 223
 224     /**
 225      * {@inheritDoc}
 226      */
 227     @Override
 228     public void onSaveInstanceState(Bundle outState) {
 229         super.onSaveInstanceState(outState);
 230
 231         outState.putParcelable(PreviewMediaFragment.EXTRA_FILE, mFile);
 232         outState.putParcelable(PreviewMediaFragment.EXTRA_ACCOUNT, mAccount);
 233
 234         if (mVideoPreview.isPlaying()) {
 235             outState.putInt(PreviewMediaFragment.EXTRA_PLAY_POSITION , mVideoPreview.getCurrentPosition());
 236         }
 237     }
 238
 239
 240     @Override
 241     public void onStart() {
 242         super.onStart();
 243
 244         if (mFile != null) {
 245            if (mFile.isAudio()) {
 246                bindMediaService();
 247
 248            } else if (mFile.isVideo()) {
 249                playVideo();
 250            }
 251         }
 252     }
 253
 254
 255     /**
 256      * {@inheritDoc}
 257      */
 258     @Override
 259     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 260         super.onCreateOptionsMenu(menu, inflater);
 261
 262         inflater.inflate(R.menu.file_actions_menu, menu);
 263         List<Integer> toHide = new ArrayList<Integer>();
 264
 265         MenuItem item = null;
 266         toHide.add(R.id.action_cancel_download);
 267         toHide.add(R.id.action_cancel_upload);
 268         toHide.add(R.id.action_download_file);
 269         toHide.add(R.id.action_rename_file);    // by now
 270
 271         for (int i : toHide) {
 272             item = menu.findItem(i);
 273             if (item != null) {
 274                 item.setVisible(false);
 275                 item.setEnabled(false);
 276             }
 277         }
 278
 279     }
 280
 281
 282     /**
 283      * {@inheritDoc}
 284      */
 285     @Override
 286     public boolean onOptionsItemSelected(MenuItem item) {
 287         switch (item.getItemId()) {
 288             case R.id.action_open_file_with: {
 289                 openFile();
 290                 return true;
 291             }
 292             case R.id.action_remove_file: {
 293                 removeFile();
 294                 return true;
 295             }
 296             case R.id.action_see_details: {
 297                 seeDetails();
 298                 return true;
 299             }
 300
 301             default:
 302                 return false;
 303         }
 304     }
 305
 306
 307     private void seeDetails() {
 308         stopPreview(false);
 309         ((FileFragment.ContainerActivity)getActivity()).showFragmentWithDetails(mFile);
 310     }
 311
 312
 313     private void prepareVideo() {
 314         // create helper to get more control on the playback
 315         mVideoHelper = new VideoHelper();
 316         mVideoPreview.setOnPreparedListener(mVideoHelper);
 317         mVideoPreview.setOnCompletionListener(mVideoHelper);
 318         mVideoPreview.setOnErrorListener(mVideoHelper);
 319     }
 320
 321     private void playVideo() {
 322         // load the video file in the video player ; when done, VideoHelper#onPrepared() will be called
 323         mVideoPreview.setVideoPath(mFile.getStoragePath());
 324
 325         // create and prepare control panel for the user
 326         mMediaController = new MediaController(getActivity());
 327         mMediaController.setMediaPlayer(mVideoPreview);
 328         mMediaController.setAnchorView(mVideoPreview);
 329         mVideoPreview.setMediaController(mMediaController);
 330     }
 331
 332
 333     private class VideoHelper implements OnCompletionListener, OnPreparedListener, OnErrorListener {
 334
 335         /**
 336          * Called when the file is ready to be played.
 337          *
 338          * Just starts the playback.
 339          *
 340          * @param   mp    {@link MediaPlayer} instance performing the playback.
 341          */
 342         @Override
 343         public void onPrepared(MediaPlayer vp) {
 344             mVideoPreview.seekTo(mSavedPlaybackPosition);
 345             mVideoPreview.start();
 346             mMediaController.show(MediaService.MEDIA_CONTROL_SHORT_LIFE);
 347         }
 348
 349
 350         /**
 351          * Called when the file is finished playing.
 352          *
 353          * Finishes the activity.
 354          *
 355          * @param   mp    {@link MediaPlayer} instance performing the playback.
 356          */
 357         @Override
 358         public void onCompletion(MediaPlayer  mp) {
 359             // nothing, right now
 360         }
 361
 362
 363         /**
 364          * Called when an error in playback occurs.
 365          *
 366          * @param   mp      {@link MediaPlayer} instance performing the playback.
 367          * @param   what    Type of error
 368          * @param   extra   Extra code specific to the error
 369          */
 370         @Override
 371         public boolean onError(MediaPlayer mp, int what, int extra) {
 372             Log.e(TAG, "Error in video playback, what = " + what + ", extra = " + extra);
 373
 374             if (mMediaController != null) {
 375                 mMediaController.hide();
 376             }
 377
 378             if (mVideoPreview.getWindowToken() != null) {
 379                 String message = MediaService.getMessageForMediaError(getActivity(), what, extra);
 380                 new AlertDialog.Builder(getActivity())
 381                         .setMessage(message)
 382                         .setPositiveButton(android.R.string.VideoView_error_button,
 383                                 new DialogInterface.OnClickListener() {
 384                                     public void onClick(DialogInterface dialog, int whichButton) {
 385                                         dialog.dismiss();
 386                                         VideoHelper.this.onCompletion(null);
 387                                     }
 388                                 })
 389                         .setCancelable(false)
 390                         .show();
 391             }
 392             return true;
 393         }
 394
 395     }
 396
 397
 398     @Override
 399     public void onResume() {
 400         super.onResume();
 401         /*
 402         mDownloadFinishReceiver = new DownloadFinishReceiver();
 403         IntentFilter filter = new IntentFilter(
 404                 FileDownloader.DOWNLOAD_FINISH_MESSAGE);
 405         getActivity().registerReceiver(mDownloadFinishReceiver, filter);
 406
 407         mUploadFinishReceiver = new UploadFinishReceiver();
 408         filter = new IntentFilter(FileUploader.UPLOAD_FINISH_MESSAGE);
 409         getActivity().registerReceiver(mUploadFinishReceiver, filter);
 410         */
 411
 412     }
 413
 414
 415     @Override
 416     public void onPause() {
 417         super.onPause();
 418         /*
 419         if (mVideoPreview.getVisibility() == View.VISIBLE) {
 420             mSavedPlaybackPosition = mVideoPreview.getCurrentPosition();
 421         }*/
 422         /*
 423         getActivity().unregisterReceiver(mDownloadFinishReceiver);
 424         mDownloadFinishReceiver = null;
 425
 426         getActivity().unregisterReceiver(mUploadFinishReceiver);
 427         mUploadFinishReceiver = null;
 428         */
 429     }
 430
 431
 432     @Override
 433     public void onStop() {
 434         super.onStop();
 435         if (mMediaServiceConnection != null) {
 436             Log.d(TAG, "Unbinding from MediaService ...");
 437             if (mMediaServiceBinder != null && mMediaController != null) {
 438                 mMediaServiceBinder.unregisterMediaController(mMediaController);
 439             }
 440             getActivity().unbindService(mMediaServiceConnection);
 441             mMediaServiceConnection = null;
 442             mMediaServiceBinder = null;
 443             if (mMediaController != null) {
 444                 mMediaController.hide();
 445                 mMediaController = null;
 446             }
 447         }
 448     }
 449
 450     @Override
 451     public void onDestroy() {
 452         super.onDestroy();
 453     }
 454
 455     /*
 456     @Override
 457     public View getView() {
 458         return super.getView() == null ? mView : super.getView();
 459     }
 460     */
 461
 462     /*
 463     @Override
 464     public void onClick(View v) {
 465         switch (v.getId()) {
 466             case R.id.fdDownloadBtn: {
 467                 FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 468                 FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 469                 if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, mFile)) {
 470                     downloaderBinder.cancel(mAccount, mFile);
 471                     if (mFile.isDown()) {
 472                         setButtonsForDown();
 473                     } else {
 474                         setButtonsForRemote();
 475                     }
 476
 477                 } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, mFile)) {
 478                     uploaderBinder.cancel(mAccount, mFile);
 479                     if (!mFile.fileExists()) {
 480                         // TODO make something better
 481                         if (getActivity() instanceof FileDisplayActivity) {
 482                             // double pane
 483                             FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
 484                             transaction.replace(R.id.file_details_container, new PreviewMediaFragment(null, null), FTAG); // empty FileDetailFragment
 485                             transaction.commit();
 486                             mContainerActivity.onFileStateChanged();
 487                         } else {
 488                             getActivity().finish();
 489                         }
 490
 491                     } else if (mFile.isDown()) {
 492                         setButtonsForDown();
 493                     } else {
 494                         setButtonsForRemote();
 495                     }
 496
 497                 } else {
 498                     mLastRemoteOperation = new SynchronizeFileOperation(mFile, null, mStorageManager, mAccount, true, false, getActivity());
 499                     WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());
 500                     mLastRemoteOperation.execute(wc, this, mHandler);
 501
 502                     // update ui
 503                     boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 504                     getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 505                     setButtonsForTransferring(); // disable button immediately, although the synchronization does not result in a file transference
 506
 507                 }
 508                 break;
 509             }
 510             case R.id.fdKeepInSync: {
 511                 CheckBox cb = (CheckBox) getView().findViewById(R.id.fdKeepInSync);
 512                 mFile.setKeepInSync(cb.isChecked());
 513                 mStorageManager.saveFile(mFile);
 514
 515                 /// register the OCFile instance in the observer service to monitor local updates;
 516                 /// if necessary, the file is download
 517                 Intent intent = new Intent(getActivity().getApplicationContext(),
 518                                            FileObserverService.class);
 519                 intent.putExtra(FileObserverService.KEY_FILE_CMD,
 520                            (cb.isChecked()?
 521                                    FileObserverService.CMD_ADD_OBSERVED_FILE:
 522                                    FileObserverService.CMD_DEL_OBSERVED_FILE));
 523                 intent.putExtra(FileObserverService.KEY_CMD_ARG_FILE, mFile);
 524                 intent.putExtra(FileObserverService.KEY_CMD_ARG_ACCOUNT, mAccount);
 525                 Log.e(TAG, "starting observer service");
 526                 getActivity().startService(intent);
 527
 528                 if (mFile.keepInSync()) {
 529                     onClick(getView().findViewById(R.id.fdDownloadBtn));    // force an immediate synchronization
 530                 }
 531                 break;
 532             }
 533             case R.id.fdRenameBtn: {
 534                 EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), mFile.getFileName(), this);
 535                 dialog.show(getFragmentManager(), "nameeditdialog");
 536                 break;
 537             }
 538             case R.id.fdRemoveBtn: {
 539                 ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 540                         R.string.confirmation_remove_alert,
 541                         new String[]{mFile.getFileName()},
 542                         mFile.isDown() ? R.string.confirmation_remove_remote_and_local : R.string.confirmation_remove_remote,
 543                         mFile.isDown() ? R.string.confirmation_remove_local : -1,
 544                         R.string.common_cancel);
 545                 confDialog.setOnConfirmationListener(this);
 546                 mCurrentDialog = confDialog;
 547                 mCurrentDialog.show(getFragmentManager(), FTAG_CONFIRMATION);
 548                 break;
 549             }
 550             case R.id.fdOpenBtn: {
 551                 openFile();
 552                 break;
 553             }
 554             default:
 555                 Log.e(TAG, "Incorrect view clicked!");
 556         }
 557
 558     }
 559     */
 560
 561
 562     @Override
 563     public boolean onTouch(View v, MotionEvent event) {
 564         if (event.getAction() == MotionEvent.ACTION_DOWN) {
 565             if (v == mImagePreview &&
 566                     mMediaServiceBinder != null && mFile.isAudio() && mMediaServiceBinder.isPlaying(mFile)) {
 567                 toggleMediaController(MediaService.MEDIA_CONTROL_PERMANENT);
 568                 return true;
 569
 570             } else if (v == mVideoPreview) {
 571                 toggleMediaController(MediaService.MEDIA_CONTROL_SHORT_LIFE);
 572                 return true;
 573             }
 574         }
 575         return false;
 576     }
 577
 578
 579     private void toggleMediaController(int time) {
 580         if (mMediaController.isShowing()) {
 581             mMediaController.hide();
 582         } else {
 583             mMediaController.show(time);
 584         }
 585     }
 586
 587
 588     private void playAudio() {
 589         if (!mMediaServiceBinder.isPlaying(mFile)) {
 590             Log.d(TAG, "starting playback of " + mFile.getStoragePath());
 591             mMediaServiceBinder.start(mAccount, mFile);
 592
 593         } else {
 594             if (!mMediaServiceBinder.isPlaying()) {
 595                 mMediaServiceBinder.start();
 596             }
 597             if (!mMediaController.isShowing() && isVisible()) {
 598                 mMediaController.show(MediaService.MEDIA_CONTROL_PERMANENT);
 599                 // TODO - fix strange bug; steps to trigger :
 600                 // 1. remove the "isVisible()" control
 601                 // 2. start the app and preview an audio file
 602                 // 3. exit from the app (home button, for instance) while the audio file is still being played
 603                 // 4. go to notification bar and click on the "ownCloud music app" notification
 604                 // PUM!
 605             }
 606         }
 607     }
 608
 609
 610     private void bindMediaService() {
 611         Log.d(TAG, "Binding to MediaService...");
 612         if (mMediaServiceConnection == null) {
 613             mMediaServiceConnection = new MediaServiceConnection();
 614         }
 615         getActivity().bindService(  new Intent(getActivity(),
 616                                     MediaService.class),
 617                                     mMediaServiceConnection,
 618                                     Context.BIND_AUTO_CREATE);
 619             // follow the flow in MediaServiceConnection#onServiceConnected(...)
 620     }
 621
 622     /** Defines callbacks for service binding, passed to bindService() */
 623     private class MediaServiceConnection implements ServiceConnection {
 624
 625         @Override
 626         public void onServiceConnected(ComponentName component, IBinder service) {
 627             if (component.equals(new ComponentName(getActivity(), MediaService.class))) {
 628                 Log.d(TAG, "Media service connected");
 629                 mMediaServiceBinder = (MediaServiceBinder) service;
 630                 if (mMediaServiceBinder != null) {
 631                     if (mMediaController == null) {
 632                         mMediaController = new MediaController(getSherlockActivity());
 633                     }
 634                     prepareMediaController();
 635                     playAudio();    // do not wait for the touch of nobody to play audio
 636
 637                     Log.d(TAG, "Successfully bound to MediaService, MediaController ready");
 638
 639                 } else {
 640                     Log.e(TAG, "Unexpected response from MediaService while binding");
 641                 }
 642             }
 643         }
 644
 645         private void prepareMediaController() {
 646             mMediaServiceBinder.registerMediaController(mMediaController);
 647             mMediaController.setMediaPlayer(mMediaServiceBinder);
 648             mMediaController.setAnchorView(getView());
 649             mMediaController.setEnabled(mMediaServiceBinder.isInPlaybackState());
 650         }
 651
 652         @Override
 653         public void onServiceDisconnected(ComponentName component) {
 654             if (component.equals(new ComponentName(getActivity(), MediaService.class))) {
 655                 Log.e(TAG, "Media service suddenly disconnected");
 656                 if (mMediaController != null) {
 657                     mMediaController.hide();
 658                     mMediaController.setMediaPlayer(null);
 659                     mMediaController = null;
 660                 }
 661                 mMediaServiceBinder = null;
 662                 mMediaServiceConnection = null;
 663             }
 664         }
 665     }
 666
 667
 668
 669     /**
 670      * Opens the previewed file with an external application.
 671      *
 672      * TODO - improve this; instead of prioritize the actions available for the MIME type in the server,
 673      * we should get a list of available apps for MIME tpye in the server and join it with the list of
 674      * available apps for the MIME type known from the file extension, to let the user choose
 675      */
 676     private void openFile() {
 677         stopPreview(true);
 678         String storagePath = mFile.getStoragePath();
 679         String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 680         try {
 681             Intent i = new Intent(Intent.ACTION_VIEW);
 682             i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mFile.getMimetype());
 683             i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 684             startActivity(i);
 685
 686         } catch (Throwable t) {
 687             Log.e(TAG, "Fail when trying to open with the mimeType provided from the ownCloud server: " + mFile.getMimetype());
 688             boolean toastIt = true;
 689             String mimeType = "";
 690             try {
 691                 Intent i = new Intent(Intent.ACTION_VIEW);
 692                 mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 693                 if (mimeType == null || !mimeType.equals(mFile.getMimetype())) {
 694                     if (mimeType != null) {
 695                         i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), mimeType);
 696                     } else {
 697                         // desperate try
 698                         i.setDataAndType(Uri.parse("file://"+ encodedStoragePath), "*-/*");
 699                     }
 700                     i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 701                     startActivity(i);
 702                     toastIt = false;
 703                 }
 704
 705             } catch (IndexOutOfBoundsException e) {
 706                 Log.e(TAG, "Trying to find out MIME type of a file without extension: " + storagePath);
 707
 708             } catch (ActivityNotFoundException e) {
 709                 Log.e(TAG, "No activity found to handle: " + storagePath + " with MIME type " + mimeType + " obtained from extension");
 710
 711             } catch (Throwable th) {
 712                 Log.e(TAG, "Unexpected problem when opening: " + storagePath, th);
 713
 714             } finally {
 715                 if (toastIt) {
 716                     Toast.makeText(getActivity(), "There is no application to handle file " + mFile.getFileName(), Toast.LENGTH_SHORT).show();
 717                 }
 718             }
 719
 720         }
 721         finish();
 722     }
 723
 724     /**
 725      * Starts a the removal of the previewed file.
 726      *
 727      * Shows a confirmation dialog. The action continues in {@link #onConfirmation(String)} , {@link #onNeutral(String)} or {@link #onCancel(String)},
 728      * depending upon the user selection in the dialog.
 729      */
 730     private void removeFile() {
 731         ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 732                 R.string.confirmation_remove_alert,
 733                 new String[]{mFile.getFileName()},
 734                 R.string.confirmation_remove_remote_and_local,
 735                 R.string.confirmation_remove_local,
 736                 R.string.common_cancel);
 737         confDialog.setOnConfirmationListener(this);
 738         confDialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
 739     }
 740
 741
 742     /**
 743      * Performs the removal of the previewed file, both locally and in the server.
 744      */
 745     @Override
 746     public void onConfirmation(String callerTag) {
 747         if (mStorageManager.getFileById(mFile.getFileId()) != null) {   // check that the file is still there;
 748             stopPreview(true);
 749             mLastRemoteOperation = new RemoveFileOperation( mFile,      // TODO we need to review the interface with RemoteOperations, and use OCFile IDs instead of OCFile objects as parameters
 750                                                             true,
 751                                                             mStorageManager);
 752             WebdavClient wc = OwnCloudClientUtils.createOwnCloudClient(mAccount, getSherlockActivity().getApplicationContext());
 753             mLastRemoteOperation.execute(wc, this, mHandler);
 754
 755             boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 756             getActivity().showDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 757         }
 758     }
 759
 760
 761     /**
 762      * Removes the file from local storage
 763      */
 764     @Override
 765     public void onNeutral(String callerTag) {
 766         // TODO this code should be made in a secondary thread,
 767         if (mFile.isDown()) {   // checks it is still there
 768             stopPreview(true);
 769             File f = new File(mFile.getStoragePath());
 770             f.delete();
 771             mFile.setStoragePath(null);
 772             mStorageManager.saveFile(mFile);
 773             finish();
 774         }
 775     }
 776
 777     /**
 778      * User cancelled the removal action.
 779      */
 780     @Override
 781     public void onCancel(String callerTag) {
 782         // nothing to do here
 783     }
 784
 785
 786     /**
 787      * {@inheritDoc}
 788      */
 789     public OCFile getFile(){
 790         return mFile;
 791     }
 792
 793     /*
 794     /**
 795      * Use this method to signal this Activity that it shall update its view.
 796      *
 797      * @param file : An {@link OCFile}
 798      *-/
 799     public void updateFileDetails(OCFile file, Account ocAccount) {
 800         mFile = file;
 801         if (ocAccount != null && (
 802                 mStorageManager == null ||
 803                 (mAccount != null && !mAccount.equals(ocAccount))
 804            )) {
 805             mStorageManager = new FileDataStorageManager(ocAccount, getActivity().getApplicationContext().getContentResolver());
 806         }
 807         mAccount = ocAccount;
 808         updateFileDetails(false);
 809     }
 810     */
 811
 812
 813     /**
 814      * Interface to implement by any Activity that includes some instance of FileDetailFragment
 815      *
 816      * @author David A. Velasco
 817      */
 818     public interface ContainerActivity extends TransferServiceGetter {
 819
 820         /**
 821          * Callback method invoked when the detail fragment wants to notice its container
 822          * activity about a relevant state the file shown by the fragment.
 823          *
 824          * Added to notify to FileDisplayActivity about the need of refresh the files list.
 825          *
 826          * Currently called when:
 827          *  - a download is started;
 828          *  - a rename is completed;
 829          *  - a deletion is completed;
 830          *  - the 'inSync' flag is changed;
 831          */
 832         public void onFileStateChanged();
 833
 834     }
 835
 836     /**
 837      * Helper method to test if an {@link OCFile} can be passed to a {@link PreviewMediaFragment} to be previewed.
 838      *
 839      * @param file      File to test if can be previewed.
 840      * @return          'True' if the file can be handled by the fragment.
 841      */
 842     public static boolean canBePreviewed(OCFile file) {
 843         return (file != null && (file.isAudio() || file.isVideo()));
 844     }
 845
 846     /**
 847      * {@inheritDoc}
 848      */
 849     @Override
 850     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 851         if (operation.equals(mLastRemoteOperation)) {
 852             if (operation instanceof RemoveFileOperation) {
 853                 onRemoveFileOperationFinish((RemoveFileOperation)operation, result);
 854             }
 855         }
 856     }
 857
 858     private void onRemoveFileOperationFinish(RemoveFileOperation operation, RemoteOperationResult result) {
 859         boolean inDisplayActivity = getActivity() instanceof FileDisplayActivity;
 860         getActivity().dismissDialog((inDisplayActivity)? FileDisplayActivity.DIALOG_SHORT_WAIT : FileDetailActivity.DIALOG_SHORT_WAIT);
 861
 862         if (result.isSuccess()) {
 863             Toast msg = Toast.makeText(getActivity().getApplicationContext(), R.string.remove_success_msg, Toast.LENGTH_LONG);
 864             msg.show();
 865             finish();
 866
 867         } else {
 868             Toast msg = Toast.makeText(getActivity(), R.string.remove_fail_msg, Toast.LENGTH_LONG);
 869             msg.show();
 870             if (result.isSslRecoverableException()) {
 871                 // TODO show the SSL warning dialog
 872             }
 873         }
 874     }
 875
 876     private void stopPreview(boolean stopAudio) {
 877         if (mMediaController != null) {
 878             mMediaController.hide();
 879         }
 880         if (mFile.isAudio() && stopAudio) {
 881             mMediaServiceBinder.pause();
 882
 883         } else if (mFile.isVideo()) {
 884             mVideoPreview.stopPlayback();
 885         }
 886     }
 887
 888
 889
 890     /**
 891      * Finishes the preview
 892      */
 893     private void finish() {
 894         Activity container = getActivity();
 895         if (container instanceof FileDisplayActivity) {
 896             // double pane
 897             FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
 898             transaction.replace(R.id.file_details_container, new FileDetailFragment(null, null), FileDetailFragment.FTAG); // empty FileDetailFragment
 899             transaction.commit();
 900             ((FileFragment.ContainerActivity)container).onFileStateChanged();
 901         } else {
 902             container.finish();
 903         }
 904     }
 905
 906 }