src/com/owncloud/android/ui/preview/PreviewVideoActivity.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 version 2,
   6  *   as published by the Free Software Foundation.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  *
  13  *   You should have received a copy of the GNU General Public License
  14  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  */
  17
  18 package com.owncloud.android.ui.preview;
  19
  20 import android.accounts.Account;
  21 import android.app.Activity;
  22 import android.app.AlertDialog;
  23 import android.content.DialogInterface;
  24 import android.content.Intent;
  25 import android.media.MediaPlayer;
  26 import android.media.MediaPlayer.OnCompletionListener;
  27 import android.media.MediaPlayer.OnErrorListener;
  28 import android.media.MediaPlayer.OnPreparedListener;
  29 import android.net.Uri;
  30 import android.os.Bundle;
  31 import android.view.MotionEvent;
  32 import android.widget.MediaController;
  33 import android.widget.VideoView;
  34
  35 import com.owncloud.android.Log_OC;
  36 import com.owncloud.android.R;
  37 import com.owncloud.android.authentication.AccountUtils;
  38 import com.owncloud.android.authentication.AccountUtils.AccountNotFoundException;
  39 import com.owncloud.android.datamodel.OCFile;
  40 import com.owncloud.android.media.MediaService;
  41
  42 /**
  43  *  Activity implementing a basic video player.
  44  *
  45  *  Used as an utility to preview video files contained in an ownCloud account.
  46  *
  47  *  Currently, it always plays in landscape mode, full screen. When the playback ends,
  48  *  the activity is finished.
  49  *
  50  *  @author David A. Velasco
  51  */
  52 public class PreviewVideoActivity extends Activity implements OnCompletionListener, OnPreparedListener, OnErrorListener {
  53
  54     /** Key to receive an {@link OCFile} to play as an extra value in an {@link Intent} */
  55     public static final String EXTRA_FILE = "FILE";
  56
  57     /** Key to receive the ownCloud {@link Account} where the file to play is saved as an extra value in an {@link Intent} */
  58     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  59
  60     /** Key to receive a flag signaling if the video should be started immediately */
  61     public static final String EXTRA_AUTOPLAY = "AUTOPLAY";
  62
  63     /** Key to receive the position of the playback where the video should be put at start */
  64     public static final String EXTRA_START_POSITION = "START_POSITION";
  65
  66     private static final String TAG = PreviewVideoActivity.class.getSimpleName();
  67
  68     private OCFile mFile;                       // video file to play
  69     private Account mAccount;                   // ownCloud account holding mFile
  70     private int mSavedPlaybackPosition;         // in the unit time handled by MediaPlayer.getCurrentPosition()
  71     private boolean mAutoplay;                  // when 'true', the playback starts immediately with the activity
  72     private VideoView mVideoPlayer;             // view to play the file; both performs and show the playback
  73     private MediaController mMediaController;   // panel control used by the user to control the playback
  74
  75     /**
  76      *  Called when the activity is first created.
  77      *
  78      *  Searches for an {@link OCFile} and ownCloud {@link Account} holding it in the starting {@link Intent}.
  79      *
  80      *  The {@link Account} is unnecessary if the file is downloaded; else, the {@link Account} is used to
  81      *  try to stream the remote file - TODO get the streaming works
  82      *
  83      *  {@inheritDoc}
  84      */
  85     @Override
  86     public void onCreate(Bundle savedInstanceState) {
  87         super.onCreate(savedInstanceState);
  88         Log_OC.e(TAG, "ACTIVITY\t\tonCreate");
  89
  90         setContentView(R.layout.video_layout);
  91
  92         if (savedInstanceState == null) {
  93             Bundle extras = getIntent().getExtras();
  94             mFile = extras.getParcelable(EXTRA_FILE);
  95             mAccount = extras.getParcelable(EXTRA_ACCOUNT);
  96             mSavedPlaybackPosition = extras.getInt(EXTRA_START_POSITION);
  97             mAutoplay = extras.getBoolean(EXTRA_AUTOPLAY);
  98
  99         } else {
 100             mFile = savedInstanceState.getParcelable(EXTRA_FILE);
 101             mAccount = savedInstanceState.getParcelable(EXTRA_ACCOUNT);
 102             mSavedPlaybackPosition = savedInstanceState.getInt(EXTRA_START_POSITION);
 103             mAutoplay = savedInstanceState.getBoolean(EXTRA_AUTOPLAY);
 104         }
 105
 106         mVideoPlayer = (VideoView) findViewById(R.id.videoPlayer);
 107
 108         // set listeners to get more contol on the playback
 109         mVideoPlayer.setOnPreparedListener(this);
 110         mVideoPlayer.setOnCompletionListener(this);
 111         mVideoPlayer.setOnErrorListener(this);
 112
 113         // keep the screen on while the playback is performed (prevents screen off by battery save)
 114         mVideoPlayer.setKeepScreenOn(true);
 115
 116         if (mFile != null) {
 117             if (mFile.isDown()) {
 118                 mVideoPlayer.setVideoPath(mFile.getStoragePath());
 119
 120             } else if (mAccount != null) {
 121                 // not working yet
 122                 String url;
 123                 try {
 124                     url = AccountUtils.constructFullURLForAccount(this, mAccount) + mFile.getRemotePath();
 125                     mVideoPlayer.setVideoURI(Uri.parse(url));
 126                 } catch (AccountNotFoundException e) {
 127                     onError(null, MediaService.OC_MEDIA_ERROR, R.string.media_err_no_account);
 128                 }
 129
 130             } else {
 131                 onError(null, MediaService.OC_MEDIA_ERROR, R.string.media_err_no_account);
 132             }
 133
 134             // create and prepare control panel for the user
 135             mMediaController = new MediaController(this);
 136             mMediaController.setMediaPlayer(mVideoPlayer);
 137             mMediaController.setAnchorView(mVideoPlayer);
 138             mVideoPlayer.setMediaController(mMediaController);
 139
 140         } else {
 141             onError(null, MediaService.OC_MEDIA_ERROR, R.string.media_err_nothing_to_play);
 142         }
 143     }
 144
 145
 146     /**
 147      * {@inheritDoc}
 148      */
 149     @Override
 150     public void onSaveInstanceState(Bundle outState) {
 151         super.onSaveInstanceState(outState);
 152         Log_OC.e(TAG, "ACTIVITY\t\tonSaveInstanceState");
 153         outState.putParcelable(PreviewVideoActivity.EXTRA_FILE, mFile);
 154         outState.putParcelable(PreviewVideoActivity.EXTRA_ACCOUNT, mAccount);
 155         outState.putInt(PreviewVideoActivity.EXTRA_START_POSITION, mVideoPlayer.getCurrentPosition());
 156         outState.putBoolean(PreviewVideoActivity.EXTRA_AUTOPLAY , mVideoPlayer.isPlaying());
 157     }
 158
 159
 160     @Override
 161     public void onBackPressed() {
 162         Log_OC.e(TAG, "ACTIVTIY\t\tonBackPressed");
 163         Intent i = new Intent();
 164         i.putExtra(EXTRA_AUTOPLAY, mVideoPlayer.isPlaying());
 165         i.putExtra(EXTRA_START_POSITION, mVideoPlayer.getCurrentPosition());
 166         setResult(RESULT_OK, i);
 167         super.onBackPressed();
 168     }
 169
 170
 171     @Override
 172     public void onResume() {
 173         super.onResume();
 174         Log_OC.e(TAG, "ACTIVTIY\t\tonResume");
 175     }
 176
 177
 178     @Override
 179     public void onStart() {
 180         super.onStart();
 181         Log_OC.e(TAG, "ACTIVTIY\t\tonStart");
 182     }
 183
 184     @Override
 185     public void onDestroy() {
 186         super.onDestroy();
 187         Log_OC.e(TAG, "ACTIVITY\t\tonDestroy");
 188     }
 189
 190     @Override
 191     public void onStop() {
 192         super.onStop();
 193         Log_OC.e(TAG, "ACTIVTIY\t\tonStop");
 194     }
 195
 196
 197     @Override
 198     public void onPause() {
 199         super.onPause();
 200         Log_OC.e(TAG, "ACTIVTIY\t\tonPause");
 201     }
 202
 203
 204     /**
 205      * Called when the file is ready to be played.
 206      *
 207      * Just starts the playback.
 208      *
 209      * @param   mp    {@link MediaPlayer} instance performing the playback.
 210      */
 211     @Override
 212     public void onPrepared(MediaPlayer mp) {
 213         Log_OC.e(TAG, "ACTIVITY\t\tonPrepare");
 214         mVideoPlayer.seekTo(mSavedPlaybackPosition);
 215         if (mAutoplay) {
 216             mVideoPlayer.start();
 217         }
 218         mMediaController.show(5000);
 219     }
 220
 221
 222     /**
 223      * Called when the file is finished playing.
 224      *
 225      * Rewinds the video
 226      *
 227      * @param   mp    {@link MediaPlayer} instance performing the playback.
 228      */
 229     @Override
 230     public void onCompletion(MediaPlayer  mp) {
 231         mVideoPlayer.seekTo(0);
 232     }
 233
 234
 235     /**
 236      * Called when an error in playback occurs.
 237      *
 238      * @param   mp      {@link MediaPlayer} instance performing the playback.
 239      * @param   what    Type of error
 240      * @param   extra   Extra code specific to the error
 241      */
 242     @Override
 243     public boolean onError(MediaPlayer mp, int what, int extra) {
 244         Log_OC.e(TAG, "Error in video playback, what = " + what + ", extra = " + extra);
 245
 246         if (mMediaController != null) {
 247             mMediaController.hide();
 248         }
 249
 250         if (mVideoPlayer.getWindowToken() != null) {
 251             String message = MediaService.getMessageForMediaError(this, what, extra);
 252             new AlertDialog.Builder(this)
 253                     .setMessage(message)
 254                     .setPositiveButton(android.R.string.VideoView_error_button,
 255                             new DialogInterface.OnClickListener() {
 256                                 public void onClick(DialogInterface dialog, int whichButton) {
 257                                     PreviewVideoActivity.this.onCompletion(null);
 258                                 }
 259                             })
 260                     .setCancelable(false)
 261                     .show();
 262         }
 263         return true;
 264     }
 265
 266
 267     /**
 268      * Screen touches trigger the appearance of the control panel for a limited time.
 269      *
 270      * {@inheritDoc}
 271      */
 272     @Override
 273     public boolean onTouchEvent (MotionEvent ev){
 274         /*if (ev.getAction() == MotionEvent.ACTION_DOWN) {
 275             if (mMediaController.isShowing()) {
 276                 mMediaController.hide();
 277             } else {
 278                 mMediaController.show(MediaService.MEDIA_CONTROL_SHORT_LIFE);
 279             }
 280             return true;
 281         } else {
 282             return false;
 283         }*/
 284         return false;
 285     }
 286
 287
 288 }