| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.content; |
| |
| import android.app.usage.UsageStatsManagerInternal; |
| import android.app.usage.UsageStatsManagerInternal.AppIdleStateChangeListener; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.BatteryManager; |
| import android.os.UserHandle; |
| |
| import com.android.server.LocalServices; |
| |
| /** |
| * Helper to listen for app idle and charging status changes and restart backed off |
| * sync operations. |
| */ |
| class AppIdleMonitor implements AppIdleStateChangeListener { |
| |
| private final SyncManager mSyncManager; |
| private final UsageStatsManagerInternal mUsageStats; |
| final BatteryManager mBatteryManager; |
| /** Is the device currently plugged into power. */ |
| private boolean mPluggedIn; |
| |
| private final BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| onPluggedIn(mBatteryManager.isCharging()); |
| } |
| }; |
| |
| AppIdleMonitor(SyncManager syncManager, Context context) { |
| mSyncManager = syncManager; |
| mUsageStats = LocalServices.getService(UsageStatsManagerInternal.class); |
| mUsageStats.addAppIdleStateChangeListener(this); |
| mBatteryManager = context.getSystemService(BatteryManager.class); |
| mPluggedIn = isPowered(); |
| registerReceivers(context); |
| } |
| |
| private void registerReceivers(Context context) { |
| // Monitor battery charging state |
| IntentFilter filter = new IntentFilter(BatteryManager.ACTION_CHARGING); |
| filter.addAction(BatteryManager.ACTION_DISCHARGING); |
| context.registerReceiver(mReceiver, filter); |
| } |
| |
| private boolean isPowered() { |
| return mBatteryManager.isCharging(); |
| } |
| |
| void onPluggedIn(boolean pluggedIn) { |
| if (mPluggedIn == pluggedIn) { |
| return; |
| } |
| mPluggedIn = pluggedIn; |
| if (mPluggedIn) { |
| mSyncManager.onAppNotIdle(null, UserHandle.USER_ALL); |
| } |
| } |
| |
| boolean isAppIdle(String packageName, int userId) { |
| return !mPluggedIn && mUsageStats.isAppIdle(packageName, userId); |
| } |
| |
| @Override |
| public void onAppIdleStateChanged(String packageName, int userId, boolean idle) { |
| // Don't care if the app is becoming idle |
| if (idle) return; |
| mSyncManager.onAppNotIdle(packageName, userId); |
| } |
| } |