| /* |
| * Copyright (C) 2008 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.systemui.power; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.database.ContentObserver; |
| import android.os.BatteryManager; |
| import android.os.Handler; |
| import android.os.PowerManager; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.util.Log; |
| import android.util.Slog; |
| |
| import com.android.systemui.SystemUI; |
| import com.android.systemui.statusbar.phone.PhoneStatusBar; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.Arrays; |
| |
| public class PowerUI extends SystemUI { |
| static final String TAG = "PowerUI"; |
| static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); |
| |
| private final Handler mHandler = new Handler(); |
| private final Receiver mReceiver = new Receiver(); |
| |
| private PowerManager mPowerManager; |
| private WarningsUI mWarnings; |
| private int mBatteryLevel = 100; |
| private int mBatteryStatus = BatteryManager.BATTERY_STATUS_UNKNOWN; |
| private int mPlugType = 0; |
| private int mInvalidCharger = 0; |
| |
| private int mLowBatteryAlertCloseLevel; |
| private final int[] mLowBatteryReminderLevels = new int[2]; |
| |
| private long mScreenOffTime = -1; |
| |
| public void start() { |
| mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); |
| mScreenOffTime = mPowerManager.isScreenOn() ? -1 : SystemClock.elapsedRealtime(); |
| mWarnings = new PowerNotificationWarnings(mContext, getComponent(PhoneStatusBar.class)); |
| |
| ContentObserver obs = new ContentObserver(mHandler) { |
| @Override |
| public void onChange(boolean selfChange) { |
| updateBatteryWarningLevels(); |
| } |
| }; |
| final ContentResolver resolver = mContext.getContentResolver(); |
| resolver.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL), |
| false, obs, UserHandle.USER_ALL); |
| updateBatteryWarningLevels(); |
| mReceiver.init(); |
| } |
| |
| private void setSaverMode(boolean mode) { |
| mWarnings.showSaverMode(mode); |
| } |
| |
| void updateBatteryWarningLevels() { |
| int critLevel = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_criticalBatteryWarningLevel); |
| |
| final ContentResolver resolver = mContext.getContentResolver(); |
| int defWarnLevel = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_lowBatteryWarningLevel); |
| int warnLevel = Settings.Global.getInt(resolver, |
| Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL, defWarnLevel); |
| if (warnLevel == 0) { |
| warnLevel = defWarnLevel; |
| } |
| if (warnLevel < critLevel) { |
| warnLevel = critLevel; |
| } |
| |
| mLowBatteryReminderLevels[0] = warnLevel; |
| mLowBatteryReminderLevels[1] = critLevel; |
| mLowBatteryAlertCloseLevel = mLowBatteryReminderLevels[0] |
| + mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_lowBatteryCloseWarningBump); |
| } |
| |
| /** |
| * Buckets the battery level. |
| * |
| * The code in this function is a little weird because I couldn't comprehend |
| * the bucket going up when the battery level was going down. --joeo |
| * |
| * 1 means that the battery is "ok" |
| * 0 means that the battery is between "ok" and what we should warn about. |
| * less than 0 means that the battery is low |
| */ |
| private int findBatteryLevelBucket(int level) { |
| if (level >= mLowBatteryAlertCloseLevel) { |
| return 1; |
| } |
| if (level > mLowBatteryReminderLevels[0]) { |
| return 0; |
| } |
| final int N = mLowBatteryReminderLevels.length; |
| for (int i=N-1; i>=0; i--) { |
| if (level <= mLowBatteryReminderLevels[i]) { |
| return -1-i; |
| } |
| } |
| throw new RuntimeException("not possible!"); |
| } |
| |
| private final class Receiver extends BroadcastReceiver { |
| |
| public void init() { |
| // Register for Intent broadcasts for... |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_BATTERY_CHANGED); |
| filter.addAction(Intent.ACTION_SCREEN_OFF); |
| filter.addAction(Intent.ACTION_SCREEN_ON); |
| filter.addAction(PowerManager.ACTION_POWER_SAVE_MODE_CHANGING); |
| filter.addAction(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED); |
| mContext.registerReceiver(this, filter, null, mHandler); |
| updateSaverMode(); |
| } |
| |
| private void updateSaverMode() { |
| setSaverMode(mPowerManager.isPowerSaveMode()); |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (action.equals(Intent.ACTION_BATTERY_CHANGED)) { |
| final int oldBatteryLevel = mBatteryLevel; |
| mBatteryLevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 100); |
| final int oldBatteryStatus = mBatteryStatus; |
| mBatteryStatus = intent.getIntExtra(BatteryManager.EXTRA_STATUS, |
| BatteryManager.BATTERY_STATUS_UNKNOWN); |
| final int oldPlugType = mPlugType; |
| mPlugType = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 1); |
| final int oldInvalidCharger = mInvalidCharger; |
| mInvalidCharger = intent.getIntExtra(BatteryManager.EXTRA_INVALID_CHARGER, 0); |
| |
| final boolean plugged = mPlugType != 0; |
| final boolean oldPlugged = oldPlugType != 0; |
| |
| int oldBucket = findBatteryLevelBucket(oldBatteryLevel); |
| int bucket = findBatteryLevelBucket(mBatteryLevel); |
| |
| if (DEBUG) { |
| Slog.d(TAG, "buckets ....." + mLowBatteryAlertCloseLevel |
| + " .. " + mLowBatteryReminderLevels[0] |
| + " .. " + mLowBatteryReminderLevels[1]); |
| Slog.d(TAG, "level " + oldBatteryLevel + " --> " + mBatteryLevel); |
| Slog.d(TAG, "status " + oldBatteryStatus + " --> " + mBatteryStatus); |
| Slog.d(TAG, "plugType " + oldPlugType + " --> " + mPlugType); |
| Slog.d(TAG, "invalidCharger " + oldInvalidCharger + " --> " + mInvalidCharger); |
| Slog.d(TAG, "bucket " + oldBucket + " --> " + bucket); |
| Slog.d(TAG, "plugged " + oldPlugged + " --> " + plugged); |
| } |
| |
| mWarnings.update(mBatteryLevel, bucket, mScreenOffTime); |
| if (oldInvalidCharger == 0 && mInvalidCharger != 0) { |
| Slog.d(TAG, "showing invalid charger warning"); |
| mWarnings.showInvalidChargerWarning(); |
| return; |
| } else if (oldInvalidCharger != 0 && mInvalidCharger == 0) { |
| mWarnings.dismissInvalidChargerWarning(); |
| } else if (mWarnings.isInvalidChargerWarningShowing()) { |
| // if invalid charger is showing, don't show low battery |
| return; |
| } |
| |
| if (!plugged |
| && (bucket < oldBucket || oldPlugged) |
| && mBatteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN |
| && bucket < 0) { |
| // only play SFX when the dialog comes up or the bucket changes |
| final boolean playSound = bucket != oldBucket || oldPlugged; |
| mWarnings.showLowBatteryWarning(playSound); |
| } else if (plugged || (bucket > oldBucket && bucket > 0)) { |
| mWarnings.dismissLowBatteryWarning(); |
| } else { |
| mWarnings.updateLowBatteryWarning(); |
| } |
| } else if (Intent.ACTION_SCREEN_OFF.equals(action)) { |
| mScreenOffTime = SystemClock.elapsedRealtime(); |
| } else if (Intent.ACTION_SCREEN_ON.equals(action)) { |
| mScreenOffTime = -1; |
| } else if (PowerManager.ACTION_POWER_SAVE_MODE_CHANGED.equals(action)) { |
| updateSaverMode(); |
| } else if (PowerManager.ACTION_POWER_SAVE_MODE_CHANGING.equals(action)) { |
| setSaverMode(intent.getBooleanExtra(PowerManager.EXTRA_POWER_SAVE_MODE, false)); |
| } else { |
| Slog.w(TAG, "unknown intent: " + intent); |
| } |
| } |
| }; |
| |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| pw.print("mLowBatteryAlertCloseLevel="); |
| pw.println(mLowBatteryAlertCloseLevel); |
| pw.print("mLowBatteryReminderLevels="); |
| pw.println(Arrays.toString(mLowBatteryReminderLevels)); |
| pw.print("mBatteryLevel="); |
| pw.println(Integer.toString(mBatteryLevel)); |
| pw.print("mBatteryStatus="); |
| pw.println(Integer.toString(mBatteryStatus)); |
| pw.print("mPlugType="); |
| pw.println(Integer.toString(mPlugType)); |
| pw.print("mInvalidCharger="); |
| pw.println(Integer.toString(mInvalidCharger)); |
| pw.print("mScreenOffTime="); |
| pw.print(mScreenOffTime); |
| if (mScreenOffTime >= 0) { |
| pw.print(" ("); |
| pw.print(SystemClock.elapsedRealtime() - mScreenOffTime); |
| pw.print(" ago)"); |
| } |
| pw.println(); |
| pw.print("soundTimeout="); |
| pw.println(Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.LOW_BATTERY_SOUND_TIMEOUT, 0)); |
| pw.print("bucket: "); |
| pw.println(Integer.toString(findBatteryLevelBucket(mBatteryLevel))); |
| mWarnings.dump(pw); |
| } |
| |
| public interface WarningsUI { |
| void update(int batteryLevel, int bucket, long screenOffTime); |
| void showSaverMode(boolean mode); |
| void dismissLowBatteryWarning(); |
| void showLowBatteryWarning(boolean playSound); |
| void dismissInvalidChargerWarning(); |
| void showInvalidChargerWarning(); |
| void updateLowBatteryWarning(); |
| boolean isInvalidChargerWarningShowing(); |
| void dump(PrintWriter pw); |
| } |
| } |
| |