src/com/cyanogenmod/eleven/appwidgets/AppWidgetSmall.java

   1 /*
   2  * Copyright (C) 2012 Andrew Neal
   3  * Copyright (C) 2014 The CyanogenMod Project
   4  * Licensed under the Apache License, Version 2.0
   5  * (the "License"); you may not use this file except in compliance with the
   6  * License. You may obtain a copy of the License at
   7  * http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law
   8  * or agreed to in writing, software distributed under the License is
   9  * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  10  * KIND, either express or implied. See the License for the specific language
  11  * governing permissions and limitations under the License.
  12  */
  13
  14 package com.cyanogenmod.eleven.appwidgets;
  15
  16 import android.annotation.SuppressLint;
  17 import android.app.PendingIntent;
  18 import android.appwidget.AppWidgetManager;
  19 import android.content.ComponentName;
  20 import android.content.Context;
  21 import android.content.Intent;
  22 import android.graphics.Bitmap;
  23 import android.text.TextUtils;
  24 import android.view.View;
  25 import android.widget.RemoteViews;
  26
  27 import com.cyanogenmod.eleven.MusicPlaybackService;
  28 import com.cyanogenmod.eleven.R;
  29 import com.cyanogenmod.eleven.ui.activities.HomeActivity;
  30 import com.cyanogenmod.eleven.utils.ApolloUtils;
  31
  32 /**
  33  * 4x1 App-Widget
  34  *
  35  * @author Andrew Neal (andrewdneal@gmail.com)
  36  */
  37 @SuppressLint("NewApi")
  38 public class AppWidgetSmall extends AppWidgetBase {
  39
  40     public static final String CMDAPPWIDGETUPDATE = "app_widget_small_update";
  41
  42     private static AppWidgetSmall mInstance;
  43
  44     public static synchronized AppWidgetSmall getInstance() {
  45         if (mInstance == null) {
  46             mInstance = new AppWidgetSmall();
  47         }
  48         return mInstance;
  49     }
  50
  51     /**
  52      * {@inheritDoc}
  53      */
  54     @Override
  55     public void onUpdate(final Context context, final AppWidgetManager appWidgetManager,
  56             final int[] appWidgetIds) {
  57         defaultAppWidget(context, appWidgetIds);
  58         final Intent updateIntent = new Intent(MusicPlaybackService.SERVICECMD);
  59         updateIntent.putExtra(MusicPlaybackService.CMDNAME, AppWidgetSmall.CMDAPPWIDGETUPDATE);
  60         updateIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);
  61         updateIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
  62         context.sendBroadcast(updateIntent);
  63     }
  64
  65     /**
  66      * Initialize given widgets to default state, where we launch Music on
  67      * default click and hide actions if service not running.
  68      */
  69     private void defaultAppWidget(final Context context, final int[] appWidgetIds) {
  70         final RemoteViews appWidgetViews = new RemoteViews(context.getPackageName(),
  71                 R.layout.app_widget_small);
  72         appWidgetViews.setViewVisibility(R.id.app_widget_small_info_container, View.INVISIBLE);
  73         linkButtons(context, appWidgetViews);
  74         pushUpdate(context, appWidgetIds, appWidgetViews);
  75     }
  76
  77     private void pushUpdate(final Context context, final int[] appWidgetIds, final RemoteViews views) {
  78         final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
  79         if (appWidgetIds != null) {
  80             appWidgetManager.updateAppWidget(appWidgetIds, views);
  81         } else {
  82             appWidgetManager.updateAppWidget(new ComponentName(context, getClass()), views);
  83         }
  84     }
  85
  86     /**
  87      * Check against {@link AppWidgetManager} if there are any instances of this
  88      * widget.
  89      */
  90     private boolean hasInstances(final Context context) {
  91         final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
  92         final int[] mAppWidgetIds = appWidgetManager.getAppWidgetIds(new ComponentName(context,
  93                 getClass()));
  94         return mAppWidgetIds.length > 0;
  95     }
  96
  97     /**
  98      * Handle a change notification coming over from
  99      * {@link MusicPlaybackService}
 100      */
 101     public void notifyChange(final MusicPlaybackService service, final String what) {
 102         if (hasInstances(service)) {
 103             if (MusicPlaybackService.META_CHANGED.equals(what)
 104                     || MusicPlaybackService.PLAYSTATE_CHANGED.equals(what)) {
 105                 performUpdate(service, null);
 106             }
 107         }
 108     }
 109
 110     /**
 111      * Update all active widget instances by pushing changes
 112      */
 113     public void performUpdate(final MusicPlaybackService service, final int[] appWidgetIds) {
 114         final RemoteViews appWidgetView = new RemoteViews(service.getPackageName(),
 115                 R.layout.app_widget_small);
 116
 117         final CharSequence trackName = service.getTrackName();
 118         final CharSequence artistName = service.getArtistName();
 119         final Bitmap bitmap = service.getAlbumArt(true).getBitmap();
 120
 121         // Set the titles and artwork
 122         if (TextUtils.isEmpty(trackName) && TextUtils.isEmpty(artistName)) {
 123             appWidgetView.setViewVisibility(R.id.app_widget_small_info_container, View.INVISIBLE);
 124         } else {
 125             appWidgetView.setViewVisibility(R.id.app_widget_small_info_container, View.VISIBLE);
 126             appWidgetView.setTextViewText(R.id.app_widget_small_line_one, trackName);
 127             appWidgetView.setTextViewText(R.id.app_widget_small_line_two, artistName);
 128         }
 129         appWidgetView.setImageViewBitmap(R.id.app_widget_small_image, bitmap);
 130
 131         // Set correct drawable for pause state
 132         final boolean isPlaying = service.isPlaying();
 133         if (isPlaying) {
 134             appWidgetView.setImageViewResource(R.id.app_widget_small_play,
 135                     R.drawable.btn_playback_pause);
 136             appWidgetView.setContentDescription(R.id.app_widget_small_play,
 137                     service.getString(R.string.accessibility_pause));
 138         } else {
 139             appWidgetView.setImageViewResource(R.id.app_widget_small_play,
 140                     R.drawable.btn_playback_play);
 141             appWidgetView.setContentDescription(R.id.app_widget_small_play,
 142                     service.getString(R.string.accessibility_play));
 143         }
 144
 145         // Link actions buttons to intents
 146         linkButtons(service, appWidgetView);
 147
 148         // Update the app-widget
 149         pushUpdate(service, appWidgetIds, appWidgetView);
 150     }
 151
 152     /**
 153      * Link up various button actions using {@link PendingIntents}.
 154      *
 155      */
 156     private void linkButtons(final Context context, final RemoteViews views) {
 157         Intent action;
 158         PendingIntent pendingIntent;
 159
 160         final ComponentName serviceName = new ComponentName(context, MusicPlaybackService.class);
 161
 162         // Home
 163         action = new Intent(context, HomeActivity.class);
 164         action.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
 165         pendingIntent = PendingIntent.getActivity(context, 0, action, 0);
 166         views.setOnClickPendingIntent(R.id.app_widget_small_info_container, pendingIntent);
 167         views.setOnClickPendingIntent(R.id.app_widget_small_image, pendingIntent);
 168
 169         // Previous track
 170         pendingIntent = buildPendingIntent(context, MusicPlaybackService.PREVIOUS_ACTION, serviceName);
 171         views.setOnClickPendingIntent(R.id.app_widget_small_previous, pendingIntent);
 172
 173         // Play and pause
 174         pendingIntent = buildPendingIntent(context, MusicPlaybackService.TOGGLEPAUSE_ACTION, serviceName);
 175         views.setOnClickPendingIntent(R.id.app_widget_small_play, pendingIntent);
 176
 177         // Next track
 178         pendingIntent = buildPendingIntent(context, MusicPlaybackService.NEXT_ACTION, serviceName);
 179         views.setOnClickPendingIntent(R.id.app_widget_small_next, pendingIntent);
 180     }
 181
 182 }