src/com/android/music/MediaAppWidgetProvider4x2.java

   1 /*\r
   2  * Copyright (C) 2009 The Android Open Source Project\r
   3  *\r
   4  * Licensed under the Apache License, Version 2.0 (the "License");\r
   5  * you may not use this file except in compliance with the License.\r
   6  * You may obtain a copy of the License at\r
   7  *\r
   8  *      http://www.apache.org/licenses/LICENSE-2.0\r
   9  *\r
  10  * Unless required by applicable law or agreed to in writing, software\r
  11  * distributed under the License is distributed on an "AS IS" BASIS,\r
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  13  * See the License for the specific language governing permissions and\r
  14  * limitations under the License.\r
  15  */\r
  16 \r
  17 package com.android.music;\r
  18 \r
  19 import android.app.PendingIntent;\r
  20 import android.appwidget.AppWidgetManager;\r
  21 import android.appwidget.AppWidgetProvider;\r
  22 import android.content.ComponentName;\r
  23 import android.content.Context;\r
  24 import android.content.Intent;\r
  25 import android.content.SharedPreferences;\r
  26 import android.content.pm.PackageManager;\r
  27 import android.content.pm.PackageManager.NameNotFoundException;\r
  28 import android.content.res.Resources;\r
  29 import android.graphics.Color;\r
  30 import android.net.Uri;\r
  31 import android.os.Environment;\r
  32 import android.preference.PreferenceManager;\r
  33 import android.view.View;\r
  34 import android.widget.RemoteViews;\r
  35 \r
  36 /**\r
  37  * Simple widget to show currently playing album art along with play/pause and\r
  38  * next track buttons.\r
  39  */\r
  40 public class MediaAppWidgetProvider4x2 extends AppWidgetProvider {\r
  41         static final String TAG = "MusicAppWidgetProvider4x2";\r
  42 \r
  43         public static final String CMDAPPWIDGETUPDATE = "appwidgetupdate4x2";\r
  44 \r
  45         // ADW Theme constants\r
  46         public static final int THEME_ITEM_BACKGROUND = 0;\r
  47         public static final int THEME_ITEM_FOREGROUND = 1;\r
  48         private static MediaAppWidgetProvider4x2 sInstance;\r
  49 \r
  50         static synchronized MediaAppWidgetProvider4x2 getInstance() {\r
  51                 if (sInstance == null) {\r
  52                         sInstance = new MediaAppWidgetProvider4x2();\r
  53                 }\r
  54                 return sInstance;\r
  55         }\r
  56 \r
  57         @Override\r
  58         public void onUpdate(Context context, AppWidgetManager appWidgetManager,\r
  59                         int[] appWidgetIds) {\r
  60                 defaultAppWidget(context, appWidgetIds);\r
  61 \r
  62                 // Send broadcast intent to any running MediaPlaybackService so it can\r
  63                 // wrap around with an immediate update.\r
  64                 Intent updateIntent = new Intent(MediaPlaybackService.SERVICECMD);\r
  65                 updateIntent.putExtra(MediaPlaybackService.CMDNAME,\r
  66                                 MediaAppWidgetProvider4x2.CMDAPPWIDGETUPDATE);\r
  67                 updateIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS,\r
  68                                 appWidgetIds);\r
  69                 updateIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);\r
  70                 context.sendBroadcast(updateIntent);\r
  71         }\r
  72 \r
  73         /**\r
  74          * Initialize given widgets to default state, where we launch Music on\r
  75          * default click and hide actions if service not running.\r
  76          */\r
  77         private void defaultAppWidget(Context context, int[] appWidgetIds) {\r
  78                 final Resources res = context.getResources();\r
  79                 final RemoteViews views = new RemoteViews(context.getPackageName(),\r
  80                                 R.layout.album_appwidget4x2);\r
  81 \r
  82                 views.setViewVisibility(R.id.albumname, View.GONE);\r
  83                 views.setViewVisibility(R.id.trackname, View.GONE);\r
  84                 views.setTextViewText(R.id.artistname,\r
  85                                 res.getText(R.string.widget_initial_text));\r
  86                 views.setImageViewResource(R.id.albumart,\r
  87                                 R.drawable.albumart_mp_unknown);\r
  88 \r
  89                 linkButtons(context, views, false /* not playing */);\r
  90                 pushUpdate(context, appWidgetIds, views);\r
  91         }\r
  92 \r
  93         private void pushUpdate(Context context, int[] appWidgetIds,\r
  94                         RemoteViews views) {\r
  95                 // Update specific list of appWidgetIds if given, otherwise default to\r
  96                 // all\r
  97                 final AppWidgetManager gm = AppWidgetManager.getInstance(context);\r
  98                 if (appWidgetIds != null) {\r
  99                         gm.updateAppWidget(appWidgetIds, views);\r
 100                 } else {\r
 101                         gm.updateAppWidget(new ComponentName(context, this.getClass()),\r
 102                                         views);\r
 103                 }\r
 104         }\r
 105 \r
 106         /**\r
 107          * Check against {@link AppWidgetManager} if there are any instances of this\r
 108          * widget.\r
 109          */\r
 110         private boolean hasInstances(Context context) {\r
 111                 AppWidgetManager appWidgetManager = AppWidgetManager\r
 112                                 .getInstance(context);\r
 113                 int[] appWidgetIds = appWidgetManager\r
 114                                 .getAppWidgetIds(new ComponentName(context, this.getClass()));\r
 115                 return (appWidgetIds.length > 0);\r
 116         }\r
 117 \r
 118         /**\r
 119          * Handle a change notification coming over from\r
 120          * {@link MediaPlaybackService}\r
 121          */\r
 122         void notifyChange(MediaPlaybackService service, String what) {\r
 123                 if (hasInstances(service)) {\r
 124                         if (MediaPlaybackService.META_CHANGED.equals(what)\r
 125                                         || MediaPlaybackService.PROGRESSBAR_CHANGED.equals(what)\r
 126                                         || MediaPlaybackService.PLAYSTATE_CHANGED.equals(what)\r
 127                                         || MediaPlaybackService.REPEATMODE_CHANGED.equals(what)\r
 128                                         || MediaPlaybackService.SHUFFLEMODE_CHANGED.equals(what)) {\r
 129                                 performUpdate(service, null);\r
 130                         }\r
 131                 }\r
 132         }\r
 133 \r
 134         /**\r
 135          * Update all active widget instances by pushing changes\r
 136          */\r
 137         void performUpdate(MediaPlaybackService service, int[] appWidgetIds) {\r
 138                 final Resources res = service.getResources();\r
 139                 final RemoteViews views = new RemoteViews(service.getPackageName(),\r
 140                                 R.layout.album_appwidget4x2);\r
 141 \r
 142                 CharSequence artistName = service.getArtistName();\r
 143                 CharSequence albumName = service.getAlbumName();\r
 144                 CharSequence trackName = service.getTrackName();\r
 145                 long albumId = service.getAlbumId();\r
 146                 long songId = service.getAudioId();\r
 147                 long pos = service.position();\r
 148                 long dur = service.duration();\r
 149                 CharSequence errorState = null;\r
 150 \r
 151                 // Format title string with track number, or show SD card message\r
 152                 String status = Environment.getExternalStorageState();\r
 153                 if (status.equals(Environment.MEDIA_SHARED)\r
 154                                 || status.equals(Environment.MEDIA_UNMOUNTED)) {\r
 155                         if (android.os.Environment.isExternalStorageRemovable()) {\r
 156                                 errorState = res.getText(R.string.sdcard_busy_title);\r
 157                         } else {\r
 158                                 errorState = res.getText(R.string.sdcard_busy_title_nosdcard);\r
 159                         }\r
 160                 } else if (status.equals(Environment.MEDIA_REMOVED)) {\r
 161                         if (android.os.Environment.isExternalStorageRemovable()) {\r
 162                                 errorState = res.getText(R.string.sdcard_missing_title);\r
 163                         } else {\r
 164                                 errorState = res\r
 165                                                 .getText(R.string.sdcard_missing_title_nosdcard);\r
 166                         }\r
 167                 } else if (trackName == null) {\r
 168                         errorState = res.getText(R.string.emptyplaylist);\r
 169                 }\r
 170                 SharedPreferences mPrefs = PreferenceManager\r
 171                                 .getDefaultSharedPreferences(service);\r
 172                 int aColor = new Integer(mPrefs.getInt(null,\r
 173                                 MusicSettingsActivity.DEFAULT_SCREENSAVER_COLOR_ALPHA));\r
 174                 int rColor = new Integer(mPrefs.getInt(null,\r
 175                                 MusicSettingsActivity.DEFAULT_SCREENSAVER_COLOR_RED));\r
 176                 int gColor = new Integer(mPrefs.getInt(null,\r
 177                                 MusicSettingsActivity.DEFAULT_SCREENSAVER_COLOR_GREEN));\r
 178                 int bColor = new Integer(mPrefs.getInt(null,\r
 179                                 MusicSettingsActivity.DEFAULT_SCREENSAVER_COLOR_BLUE));\r
 180                 int SCREEN_SAVER_COLOR_DIM = Color.argb(aColor, rColor, gColor, bColor);\r
 181 \r
 182                 if (errorState != null) {\r
 183                         // Show error state to user\r
 184                         views.setViewVisibility(R.id.albumname, View.GONE);\r
 185                         views.setViewVisibility(R.id.trackname, View.GONE);\r
 186                         views.setTextViewText(R.id.artistname, errorState);\r
 187                         views.setImageViewResource(R.id.albumart,\r
 188                                         R.drawable.albumart_mp_unknown);\r
 189                 } else {\r
 190                         // No error, so show normal titles and artwork\r
 191                         views.setViewVisibility(R.id.albumname, View.VISIBLE);\r
 192                         views.setViewVisibility(R.id.trackname, View.VISIBLE);\r
 193                         views.setTextViewText(R.id.artistname, "  " + artistName);\r
 194                         views.setTextViewText(R.id.albumname, "  " + albumName);\r
 195                         views.setTextViewText(R.id.trackname, "  " + trackName);\r
 196                         views.setTextColor(R.id.artistname, SCREEN_SAVER_COLOR_DIM);\r
 197                         views.setTextColor(R.id.albumname, SCREEN_SAVER_COLOR_DIM);\r
 198                         views.setTextColor(R.id.trackname, SCREEN_SAVER_COLOR_DIM);\r
 199                         views.setProgressBar(R.id.progress, 1000, (int) (1000 * pos / dur),\r
 200                                         false);\r
 201 \r
 202                         // Set album art\r
 203                         Uri uri = MusicUtils.getArtworkUri(service, songId, albumId);\r
 204                         if (uri != null) {\r
 205                                 views.setImageViewUri(R.id.albumart, uri);\r
 206                         } else {\r
 207                                 views.setImageViewResource(R.id.albumart,\r
 208                                                 R.drawable.albumart_mp_unknown);\r
 209                         }\r
 210                 }\r
 211 \r
 212                 // Set correct drawable for pause state\r
 213                 final boolean playing = service.isPlaying();\r
 214                 if (playing) {\r
 215                         views.setImageViewResource(R.id.control_play,\r
 216                                         R.drawable.ic_media_pause);\r
 217                 } else {\r
 218                         views.setImageViewResource(R.id.control_play,\r
 219                                         R.drawable.ic_appwidget_music_play);\r
 220                 }\r
 221 \r
 222                 // Set correct drawable for repeat state\r
 223                 switch (service.getRepeatMode()) {\r
 224                 case MediaPlaybackService.REPEAT_ALL:\r
 225                         views.setImageViewResource(R.id.control_repeat,\r
 226                                         R.drawable.ic_mp_repeat_all_btn);\r
 227                         break;\r
 228                 case MediaPlaybackService.REPEAT_CURRENT:\r
 229                         views.setImageViewResource(R.id.control_repeat,\r
 230                                         R.drawable.ic_mp_repeat_once_btn);\r
 231                         break;\r
 232                 default:\r
 233                         views.setImageViewResource(R.id.control_repeat,\r
 234                                         R.drawable.ic_mp_repeat_off_btn);\r
 235                         break;\r
 236                 }\r
 237 \r
 238                 // Set correct drawable for shuffle state\r
 239                 switch (service.getShuffleMode()) {\r
 240                 case MediaPlaybackService.SHUFFLE_NONE:\r
 241                         views.setImageViewResource(R.id.control_shuffle,\r
 242                                         R.drawable.ic_mp_shuffle_off_btn);\r
 243                         break;\r
 244                 case MediaPlaybackService.SHUFFLE_AUTO:\r
 245                         views.setImageViewResource(R.id.control_shuffle,\r
 246                                         R.drawable.ic_mp_partyshuffle_on_btn);\r
 247                         break;\r
 248                 default:\r
 249                         views.setImageViewResource(R.id.control_shuffle,\r
 250                                         R.drawable.ic_mp_shuffle_on_btn);\r
 251                         break;\r
 252                 }\r
 253                 // Link actions buttons to intents\r
 254                 linkButtons(service, views, playing);\r
 255 \r
 256                 pushUpdate(service, appWidgetIds, views);\r
 257 \r
 258         }\r
 259 \r
 260         /**\r
 261          * Link up various button actions using {@link PendingIntents}.\r
 262          * \r
 263          * @param playerActive\r
 264          *            True if player is active in background, which means widget\r
 265          *            click will launch {@link MediaPlaybackActivity}, otherwise we\r
 266          *            launch {@link MusicBrowserActivity}.\r
 267          */\r
 268         private void linkButtons(Context context, RemoteViews views,\r
 269                         boolean playerActive) {\r
 270 \r
 271                 // ADW: Load the specified theme\r
 272                 String themePackage = MusicUtils.getThemePackageName(context,\r
 273                                 MusicSettingsActivity.THEME_DEFAULT);\r
 274                 PackageManager pm = context.getPackageManager();\r
 275                 Resources themeResources = null;\r
 276                 if (!themePackage.equals(MusicSettingsActivity.THEME_DEFAULT)) {\r
 277                         try {\r
 278                                 themeResources = pm.getResourcesForApplication(themePackage);\r
 279                         } catch (NameNotFoundException e) {\r
 280                                 // ADW The saved theme was uninstalled so we save the\r
 281                                 // default one\r
 282                                 MusicUtils.setThemePackageName(context,\r
 283                                                 MusicSettingsActivity.THEME_DEFAULT);\r
 284                         }\r
 285                         int albumName = themeResources.getIdentifier(\r
 286                                         "four_by_two_album_name", "color", themePackage);\r
 287                         if (albumName != 0) {\r
 288                                 views.setTextColor(R.id.albumname,\r
 289                                                 themeResources.getColor(albumName));\r
 290                         }\r
 291                         int trackName = themeResources.getIdentifier(\r
 292                                         "four_by_two_track_name", "color", themePackage);\r
 293                         if (trackName != 0) {\r
 294                                 views.setTextColor(R.id.trackname,\r
 295                                                 themeResources.getColor(trackName));\r
 296                         }\r
 297                         int artistName = themeResources.getIdentifier(\r
 298                                         "four_by_two_artist_name", "color", themePackage);\r
 299                         if (artistName != 0) {\r
 300                                 views.setTextColor(R.id.artistname,\r
 301                                                 themeResources.getColor(artistName));\r
 302                         }\r
 303                 }\r
 304 \r
 305                 // Connect up various buttons and touch events\r
 306                 Intent intent;\r
 307                 PendingIntent pendingIntent;\r
 308 \r
 309                 final ComponentName serviceName = new ComponentName(context,\r
 310                                 MediaPlaybackService.class);\r
 311 \r
 312                 if (playerActive) {\r
 313                         intent = new Intent(context, MediaPlaybackActivity.class);\r
 314                         pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);\r
 315                         views.setOnClickPendingIntent(R.id.albumart, pendingIntent);\r
 316                         views.setOnClickPendingIntent(R.id.info, pendingIntent);\r
 317                 } else {\r
 318                         intent = new Intent(context, MusicBrowserActivity.class);\r
 319                         pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);\r
 320                         views.setOnClickPendingIntent(R.id.albumart, pendingIntent);\r
 321                         views.setOnClickPendingIntent(R.id.info, pendingIntent);\r
 322                 }\r
 323 \r
 324                 intent = new Intent(MediaPlaybackService.TOGGLEPAUSE_ACTION);\r
 325                 intent.setComponent(serviceName);\r
 326                 pendingIntent = PendingIntent.getService(context, 0, intent, 0);\r
 327                 views.setOnClickPendingIntent(R.id.control_play, pendingIntent);\r
 328 \r
 329                 intent = new Intent(MediaPlaybackService.NEXT_ACTION);\r
 330                 intent.setComponent(serviceName);\r
 331                 pendingIntent = PendingIntent.getService(context, 0, intent, 0);\r
 332                 views.setOnClickPendingIntent(R.id.control_next, pendingIntent);\r
 333 \r
 334                 intent = new Intent(MediaPlaybackService.PREVIOUS_ACTION);\r
 335                 intent.setComponent(serviceName);\r
 336                 pendingIntent = PendingIntent.getService(context, 0, intent, 0);\r
 337                 views.setOnClickPendingIntent(R.id.control_prev, pendingIntent);\r
 338 \r
 339                 intent = new Intent(MediaPlaybackService.CYCLEREPEAT_ACTION);\r
 340                 intent.setComponent(serviceName);\r
 341                 pendingIntent = PendingIntent.getService(context, 0, intent, 0);\r
 342                 views.setOnClickPendingIntent(R.id.control_repeat, pendingIntent);\r
 343 \r
 344                 intent = new Intent(MediaPlaybackService.TOGGLESHUFFLE_ACTION);\r
 345                 intent.setComponent(serviceName);\r
 346                 pendingIntent = PendingIntent.getService(context, 0, intent, 0);\r
 347                 views.setOnClickPendingIntent(R.id.control_shuffle, pendingIntent);\r
 348         }\r
 349 }\r