packages/SystemUI/src/com/android/systemui/power/PowerUI.java - platform/frameworks/base - Gitiles

 /*
  * 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.app.AlertDialog;
 import android.content.BroadcastReceiver;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.media.AudioManager;
 import android.media.Ringtone;
 import android.media.RingtoneManager;
 import android.net.Uri;
 import android.os.BatteryManager;
 import android.os.Handler;
 import android.os.UserHandle;
 import android.provider.Settings;
 import android.util.Log;
 import android.view.View;
 import android.view.WindowManager;
 import android.widget.TextView;

 import com.android.systemui.R;
 import com.android.systemui.SystemUI;

 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 = false;

     Handler mHandler = new Handler();

     int mBatteryLevel = 100;
     int mBatteryStatus = BatteryManager.BATTERY_STATUS_UNKNOWN;
     int mPlugType = 0;
     int mInvalidCharger = 0;

     int mLowBatteryAlertCloseLevel;
     int[] mLowBatteryReminderLevels = new int[2];

     AlertDialog mInvalidChargerDialog;
     AlertDialog mLowBatteryDialog;
     TextView mBatteryLevelTextView;

     public void start() {

         mLowBatteryAlertCloseLevel = mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_lowBatteryCloseWarningLevel);
         mLowBatteryReminderLevels[0] = mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_lowBatteryWarningLevel);
         mLowBatteryReminderLevels[1] = mContext.getResources().getInteger(
                 com.android.internal.R.integer.config_criticalBatteryWarningLevel);

         // Register for Intent broadcasts for...
         IntentFilter filter = new IntentFilter();
         filter.addAction(Intent.ACTION_BATTERY_CHANGED);
         filter.addAction(Intent.ACTION_POWER_CONNECTED);
         mContext.registerReceiver(mIntentReceiver, filter, null, mHandler);
     }

     /**
      * 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 BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
         @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) {
                     Log.d(TAG, "buckets   ....." + mLowBatteryAlertCloseLevel
                             + " .. " + mLowBatteryReminderLevels[0]
                             + " .. " + mLowBatteryReminderLevels[1]);
                     Log.d(TAG, "level          " + oldBatteryLevel + " --> " + mBatteryLevel);
                     Log.d(TAG, "status         " + oldBatteryStatus + " --> " + mBatteryStatus);
                     Log.d(TAG, "plugType       " + oldPlugType + " --> " + mPlugType);
                     Log.d(TAG, "invalidCharger " + oldInvalidCharger + " --> " + mInvalidCharger);
                     Log.d(TAG, "bucket         " + oldBucket + " --> " + bucket);
                     Log.d(TAG, "plugged        " + oldPlugged + " --> " + plugged);
                 }

                 if (oldInvalidCharger == 0 && mInvalidCharger != 0) {
                     Log.d(TAG, "showing invalid charger warning");
                     showInvalidChargerDialog();
                     return;
                 } else if (oldInvalidCharger != 0 && mInvalidCharger == 0) {
                     dismissInvalidChargerDialog();
                 } else if (mInvalidChargerDialog != null) {
                     // if invalid charger is showing, don't show low battery
                     return;
                 }

                 if (!plugged
                         && (bucket < oldBucket || oldPlugged)
                         && mBatteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN
                         && bucket < 0) {
                     showLowBatteryWarning();

                     // only play SFX when the dialog comes up or the bucket changes
                     if (bucket != oldBucket || oldPlugged) {
                         playLowBatterySound();
                     }
                 } else if (plugged || (bucket > oldBucket && bucket > 0)) {
                     dismissLowBatteryWarning();
                 } else if (mBatteryLevelTextView != null) {
                     showLowBatteryWarning();
                 }
             } else {
                 Log.w(TAG, "unknown intent: " + intent);
             }
         }
     };

     void dismissLowBatteryWarning() {
         if (mLowBatteryDialog != null) {
             Log.i(TAG, "closing low battery warning: level=" + mBatteryLevel);
             mLowBatteryDialog.dismiss();
         }
     }

     void showLowBatteryWarning() {
         Log.i(TAG,
                 ((mBatteryLevelTextView == null) ? "showing" : "updating")
                 + " low battery warning: level=" + mBatteryLevel
                 + " [" + findBatteryLevelBucket(mBatteryLevel) + "]");

         CharSequence levelText = mContext.getString(
                 R.string.battery_low_percent_format, mBatteryLevel);

         if (mBatteryLevelTextView != null) {
             mBatteryLevelTextView.setText(levelText);
         } else {
             View v = View.inflate(mContext, R.layout.battery_low, null);
             mBatteryLevelTextView = (TextView)v.findViewById(R.id.level_percent);

             mBatteryLevelTextView.setText(levelText);

             AlertDialog.Builder b = new AlertDialog.Builder(mContext);
                 b.setCancelable(true);
                 b.setTitle(R.string.battery_low_title);
                 b.setView(v);
                 b.setIconAttribute(android.R.attr.alertDialogIcon);
                 b.setPositiveButton(android.R.string.ok, null);

             final Intent intent = new Intent(Intent.ACTION_POWER_USAGE_SUMMARY);
             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                     | Intent.FLAG_ACTIVITY_MULTIPLE_TASK
                     | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
                     | Intent.FLAG_ACTIVITY_NO_HISTORY);
             if (intent.resolveActivity(mContext.getPackageManager()) != null) {
                 b.setNegativeButton(R.string.battery_low_why,
                         new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int which) {
                         mContext.startActivityAsUser(intent, UserHandle.CURRENT);
                         dismissLowBatteryWarning();
                     }
                 });
             }

             AlertDialog d = b.create();
             d.setOnDismissListener(new DialogInterface.OnDismissListener() {
                     @Override
                     public void onDismiss(DialogInterface dialog) {
                         mLowBatteryDialog = null;
                         mBatteryLevelTextView = null;
                     }
                 });
             d.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
             d.getWindow().getAttributes().privateFlags |=
                     WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
             d.show();
             mLowBatteryDialog = d;
         }
     }

     void playLowBatterySound() {
         if (DEBUG) {
             Log.i(TAG, "playing low battery sound. WOMP-WOMP!");
         }

         final ContentResolver cr = mContext.getContentResolver();
         if (Settings.Global.getInt(cr, Settings.Global.POWER_SOUNDS_ENABLED, 1) == 1) {
             final String soundPath = Settings.Global.getString(cr,
                     Settings.Global.LOW_BATTERY_SOUND);
             if (soundPath != null) {
                 final Uri soundUri = Uri.parse("file://" + soundPath);
                 if (soundUri != null) {
                     final Ringtone sfx = RingtoneManager.getRingtone(mContext, soundUri);
                     if (sfx != null) {
                         sfx.setStreamType(AudioManager.STREAM_SYSTEM);
                         sfx.play();
                     }
                 }
             }
         }
     }

     void dismissInvalidChargerDialog() {
         if (mInvalidChargerDialog != null) {
             mInvalidChargerDialog.dismiss();
         }
     }

     void showInvalidChargerDialog() {
         Log.d(TAG, "showing invalid charger dialog");

         dismissLowBatteryWarning();

         AlertDialog.Builder b = new AlertDialog.Builder(mContext);
             b.setCancelable(true);
             b.setMessage(R.string.invalid_charger);
             b.setIconAttribute(android.R.attr.alertDialogIcon);
             b.setPositiveButton(android.R.string.ok, null);

         AlertDialog d = b.create();
             d.setOnDismissListener(new DialogInterface.OnDismissListener() {
                     public void onDismiss(DialogInterface dialog) {
                         mInvalidChargerDialog = null;
                         mBatteryLevelTextView = null;
                     }
                 });

         d.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
         d.show();
         mInvalidChargerDialog = d;
     }

     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("mInvalidChargerDialog=");
         pw.println(mInvalidChargerDialog == null ? "null" : mInvalidChargerDialog.toString());
         pw.print("mLowBatteryDialog=");
         pw.println(mLowBatteryDialog == null ? "null" : mLowBatteryDialog.toString());
         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("bucket: ");
         pw.println(Integer.toString(findBatteryLevelBucket(mBatteryLevel)));
     }
 }
	/*
	* 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.app.AlertDialog;
	import android.content.BroadcastReceiver;
	import android.content.ContentResolver;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.media.AudioManager;
	import android.media.Ringtone;
	import android.media.RingtoneManager;
	import android.net.Uri;
	import android.os.BatteryManager;
	import android.os.Handler;
	import android.os.UserHandle;
	import android.provider.Settings;
	import android.util.Log;
	import android.view.View;
	import android.view.WindowManager;
	import android.widget.TextView;

	import com.android.systemui.R;
	import com.android.systemui.SystemUI;

	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 = false;

	Handler mHandler = new Handler();

	int mBatteryLevel = 100;
	int mBatteryStatus = BatteryManager.BATTERY_STATUS_UNKNOWN;
	int mPlugType = 0;
	int mInvalidCharger = 0;

	int mLowBatteryAlertCloseLevel;
	int[] mLowBatteryReminderLevels = new int[2];

	AlertDialog mInvalidChargerDialog;
	AlertDialog mLowBatteryDialog;
	TextView mBatteryLevelTextView;

	public void start() {

	mLowBatteryAlertCloseLevel = mContext.getResources().getInteger(
	com.android.internal.R.integer.config_lowBatteryCloseWarningLevel);
	mLowBatteryReminderLevels[0] = mContext.getResources().getInteger(
	com.android.internal.R.integer.config_lowBatteryWarningLevel);
	mLowBatteryReminderLevels[1] = mContext.getResources().getInteger(
	com.android.internal.R.integer.config_criticalBatteryWarningLevel);

	// Register for Intent broadcasts for...
	IntentFilter filter = new IntentFilter();
	filter.addAction(Intent.ACTION_BATTERY_CHANGED);
	filter.addAction(Intent.ACTION_POWER_CONNECTED);
	mContext.registerReceiver(mIntentReceiver, filter, null, mHandler);
	}

	/**
	* 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 BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
	@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) {
	Log.d(TAG, "buckets ....." + mLowBatteryAlertCloseLevel
	+ " .. " + mLowBatteryReminderLevels[0]
	+ " .. " + mLowBatteryReminderLevels[1]);
	Log.d(TAG, "level " + oldBatteryLevel + " --> " + mBatteryLevel);
	Log.d(TAG, "status " + oldBatteryStatus + " --> " + mBatteryStatus);
	Log.d(TAG, "plugType " + oldPlugType + " --> " + mPlugType);
	Log.d(TAG, "invalidCharger " + oldInvalidCharger + " --> " + mInvalidCharger);
	Log.d(TAG, "bucket " + oldBucket + " --> " + bucket);
	Log.d(TAG, "plugged " + oldPlugged + " --> " + plugged);
	}

	if (oldInvalidCharger == 0 && mInvalidCharger != 0) {
	Log.d(TAG, "showing invalid charger warning");
	showInvalidChargerDialog();
	return;
	} else if (oldInvalidCharger != 0 && mInvalidCharger == 0) {
	dismissInvalidChargerDialog();
	} else if (mInvalidChargerDialog != null) {
	// if invalid charger is showing, don't show low battery
	return;
	}

	if (!plugged
	&& (bucket < oldBucket \|\| oldPlugged)
	&& mBatteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN
	&& bucket < 0) {
	showLowBatteryWarning();

	// only play SFX when the dialog comes up or the bucket changes
	if (bucket != oldBucket \|\| oldPlugged) {
	playLowBatterySound();
	}
	} else if (plugged \|\| (bucket > oldBucket && bucket > 0)) {
	dismissLowBatteryWarning();
	} else if (mBatteryLevelTextView != null) {
	showLowBatteryWarning();
	}
	} else {
	Log.w(TAG, "unknown intent: " + intent);
	}
	}
	};

	void dismissLowBatteryWarning() {
	if (mLowBatteryDialog != null) {
	Log.i(TAG, "closing low battery warning: level=" + mBatteryLevel);
	mLowBatteryDialog.dismiss();
	}
	}

	void showLowBatteryWarning() {
	Log.i(TAG,
	((mBatteryLevelTextView == null) ? "showing" : "updating")
	+ " low battery warning: level=" + mBatteryLevel
	+ " [" + findBatteryLevelBucket(mBatteryLevel) + "]");

	CharSequence levelText = mContext.getString(
	R.string.battery_low_percent_format, mBatteryLevel);

	if (mBatteryLevelTextView != null) {
	mBatteryLevelTextView.setText(levelText);
	} else {
	View v = View.inflate(mContext, R.layout.battery_low, null);
	mBatteryLevelTextView = (TextView)v.findViewById(R.id.level_percent);

	mBatteryLevelTextView.setText(levelText);

	AlertDialog.Builder b = new AlertDialog.Builder(mContext);
	b.setCancelable(true);
	b.setTitle(R.string.battery_low_title);
	b.setView(v);
	b.setIconAttribute(android.R.attr.alertDialogIcon);
	b.setPositiveButton(android.R.string.ok, null);

	final Intent intent = new Intent(Intent.ACTION_POWER_USAGE_SUMMARY);
	intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
	\| Intent.FLAG_ACTIVITY_MULTIPLE_TASK
	\| Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
	\| Intent.FLAG_ACTIVITY_NO_HISTORY);
	if (intent.resolveActivity(mContext.getPackageManager()) != null) {
	b.setNegativeButton(R.string.battery_low_why,
	new DialogInterface.OnClickListener() {
	@Override
	public void onClick(DialogInterface dialog, int which) {
	mContext.startActivityAsUser(intent, UserHandle.CURRENT);
	dismissLowBatteryWarning();
	}
	});
	}

	AlertDialog d = b.create();
	d.setOnDismissListener(new DialogInterface.OnDismissListener() {
	@Override
	public void onDismiss(DialogInterface dialog) {
	mLowBatteryDialog = null;
	mBatteryLevelTextView = null;
	}
	});
	d.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
	d.getWindow().getAttributes().privateFlags \|=
	WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
	d.show();
	mLowBatteryDialog = d;
	}
	}

	void playLowBatterySound() {
	if (DEBUG) {
	Log.i(TAG, "playing low battery sound. WOMP-WOMP!");
	}

	final ContentResolver cr = mContext.getContentResolver();
	if (Settings.Global.getInt(cr, Settings.Global.POWER_SOUNDS_ENABLED, 1) == 1) {
	final String soundPath = Settings.Global.getString(cr,
	Settings.Global.LOW_BATTERY_SOUND);
	if (soundPath != null) {
	final Uri soundUri = Uri.parse("file://" + soundPath);
	if (soundUri != null) {
	final Ringtone sfx = RingtoneManager.getRingtone(mContext, soundUri);
	if (sfx != null) {
	sfx.setStreamType(AudioManager.STREAM_SYSTEM);
	sfx.play();
	}
	}
	}
	}
	}

	void dismissInvalidChargerDialog() {
	if (mInvalidChargerDialog != null) {
	mInvalidChargerDialog.dismiss();
	}
	}

	void showInvalidChargerDialog() {
	Log.d(TAG, "showing invalid charger dialog");

	dismissLowBatteryWarning();

	AlertDialog.Builder b = new AlertDialog.Builder(mContext);
	b.setCancelable(true);
	b.setMessage(R.string.invalid_charger);
	b.setIconAttribute(android.R.attr.alertDialogIcon);
	b.setPositiveButton(android.R.string.ok, null);

	AlertDialog d = b.create();
	d.setOnDismissListener(new DialogInterface.OnDismissListener() {
	public void onDismiss(DialogInterface dialog) {
	mInvalidChargerDialog = null;
	mBatteryLevelTextView = null;
	}
	});

	d.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
	d.show();
	mInvalidChargerDialog = d;
	}

	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("mInvalidChargerDialog=");
	pw.println(mInvalidChargerDialog == null ? "null" : mInvalidChargerDialog.toString());
	pw.print("mLowBatteryDialog=");
	pw.println(mLowBatteryDialog == null ? "null" : mLowBatteryDialog.toString());
	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("bucket: ");
	pw.println(Integer.toString(findBatteryLevelBucket(mBatteryLevel)));
	}
	}