CountdownConditionProvider.java revision 50806fc4ceff4bb093a18bdecb506163e68b9cbb
1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.notification; 18 19import android.app.AlarmManager; 20import android.app.PendingIntent; 21import android.content.BroadcastReceiver; 22import android.content.ComponentName; 23import android.content.Context; 24import android.content.Intent; 25import android.content.IntentFilter; 26import android.net.Uri; 27import android.service.notification.Condition; 28import android.service.notification.ConditionProviderService; 29import android.service.notification.IConditionProvider; 30import android.service.notification.ZenModeConfig; 31import android.text.format.DateUtils; 32import android.util.Slog; 33 34import com.android.server.notification.NotificationManagerService.DumpFilter; 35 36import java.io.PrintWriter; 37import java.util.Date; 38 39/** Built-in zen condition provider for simple time-based conditions */ 40public class CountdownConditionProvider extends ConditionProviderService { 41 private static final String TAG = "CountdownConditionProvider"; 42 private static final boolean DEBUG = false; 43 44 public static final ComponentName COMPONENT = 45 new ComponentName("android", CountdownConditionProvider.class.getName()); 46 47 private static final String ACTION = CountdownConditionProvider.class.getName(); 48 private static final int REQUEST_CODE = 100; 49 private static final String EXTRA_CONDITION_ID = "condition_id"; 50 51 private final Context mContext = this; 52 private final Receiver mReceiver = new Receiver(); 53 54 private boolean mConnected; 55 private long mTime; 56 57 public CountdownConditionProvider() { 58 if (DEBUG) Slog.d(TAG, "new CountdownConditionProvider()"); 59 } 60 61 public void dump(PrintWriter pw, DumpFilter filter) { 62 pw.println(" CountdownConditionProvider:"); 63 pw.print(" mConnected="); pw.println(mConnected); 64 pw.print(" mTime="); pw.println(mTime); 65 } 66 67 @Override 68 public void onConnected() { 69 if (DEBUG) Slog.d(TAG, "onConnected"); 70 mContext.registerReceiver(mReceiver, new IntentFilter(ACTION)); 71 mConnected = true; 72 } 73 74 @Override 75 public void onDestroy() { 76 super.onDestroy(); 77 if (DEBUG) Slog.d(TAG, "onDestroy"); 78 if (mConnected) { 79 mContext.unregisterReceiver(mReceiver); 80 } 81 mConnected = false; 82 } 83 84 @Override 85 public void onRequestConditions(int relevance) { 86 // by convention 87 } 88 89 @Override 90 public void onSubscribe(Uri conditionId) { 91 if (DEBUG) Slog.d(TAG, "onSubscribe " + conditionId); 92 mTime = ZenModeConfig.tryParseCountdownConditionId(conditionId); 93 final AlarmManager alarms = (AlarmManager) 94 mContext.getSystemService(Context.ALARM_SERVICE); 95 final Intent intent = new Intent(ACTION).putExtra(EXTRA_CONDITION_ID, conditionId) 96 .setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 97 final PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, REQUEST_CODE, 98 intent, PendingIntent.FLAG_UPDATE_CURRENT); 99 alarms.cancel(pendingIntent); 100 if (mTime > 0) { 101 final long now = System.currentTimeMillis(); 102 final CharSequence span = 103 DateUtils.getRelativeTimeSpanString(mTime, now, DateUtils.MINUTE_IN_MILLIS); 104 if (mTime <= now) { 105 // in the past, already false 106 notifyCondition(newCondition(mTime, Condition.STATE_FALSE)); 107 } else { 108 // in the future, set an alarm 109 alarms.setExact(AlarmManager.RTC_WAKEUP, mTime, pendingIntent); 110 } 111 if (DEBUG) Slog.d(TAG, String.format( 112 "%s %s for %s, %s in the future (%s), now=%s", 113 (mTime <= now ? "Not scheduling" : "Scheduling"), 114 ACTION, ts(mTime), mTime - now, span, ts(now))); 115 } 116 } 117 118 @Override 119 public void onUnsubscribe(Uri conditionId) { 120 // noop 121 } 122 123 private final class Receiver extends BroadcastReceiver { 124 @Override 125 public void onReceive(Context context, Intent intent) { 126 if (ACTION.equals(intent.getAction())) { 127 final Uri conditionId = intent.getParcelableExtra(EXTRA_CONDITION_ID); 128 final long time = ZenModeConfig.tryParseCountdownConditionId(conditionId); 129 if (DEBUG) Slog.d(TAG, "Countdown condition fired: " + conditionId); 130 if (time > 0) { 131 notifyCondition(newCondition(time, Condition.STATE_FALSE)); 132 } 133 } 134 } 135 } 136 137 private static final Condition newCondition(long time, int state) { 138 return new Condition(ZenModeConfig.toCountdownConditionId(time), 139 "", "", "", 0, state,Condition.FLAG_RELEVANT_NOW); 140 } 141 142 public static String tryParseDescription(Uri conditionUri) { 143 final long time = ZenModeConfig.tryParseCountdownConditionId(conditionUri); 144 if (time == 0) return null; 145 final long now = System.currentTimeMillis(); 146 final CharSequence span = 147 DateUtils.getRelativeTimeSpanString(time, now, DateUtils.MINUTE_IN_MILLIS); 148 return String.format("Scheduled for %s, %s in the future (%s), now=%s", 149 ts(time), time - now, span, ts(now)); 150 } 151 152 private static String ts(long time) { 153 return new Date(time) + " (" + time + ")"; 154 } 155 156 public void attachBase(Context base) { 157 attachBaseContext(base); 158 } 159 160 public IConditionProvider asInterface() { 161 return (IConditionProvider) onBind(null); 162 } 163} 164