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/*
* 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.settings.fuelgauge;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryStats;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.UserManager;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import com.android.internal.os.BatteryStatsHelper;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
/**
* Common base class for things that need to show the battery usage graph.
*/
public abstract class PowerUsageBase extends SettingsPreferenceFragment {
// +1 to allow ordering for PowerUsageSummary.
private static final int MENU_STATS_REFRESH = Menu.FIRST + 1;
protected BatteryStatsHelper mStatsHelper;
protected UserManager mUm;
private String mBatteryLevel;
private String mBatteryStatus;
private boolean mHideRefresh = false;
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
mUm = (UserManager) activity.getSystemService(Context.USER_SERVICE);
mStatsHelper = new BatteryStatsHelper(activity, true);
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
mStatsHelper.create(icicle);
setHasOptionsMenu(true);
}
@Override
public void onStart() {
super.onStart();
mStatsHelper.clearStats();
}
@Override
public void onResume() {
super.onResume();
BatteryStatsHelper.dropFile(getActivity(), BatteryHistoryPreference.BATTERY_HISTORY_FILE);
updateBatteryStatus(getActivity().registerReceiver(mBatteryInfoReceiver,
new IntentFilter(Intent.ACTION_BATTERY_CHANGED)));
if (mHandler.hasMessages(MSG_REFRESH_STATS)) {
mHandler.removeMessages(MSG_REFRESH_STATS);
mStatsHelper.clearStats();
}
}
@Override
public void onPause() {
super.onPause();
getActivity().unregisterReceiver(mBatteryInfoReceiver);
}
@Override
public void onStop() {
super.onStop();
mHandler.removeMessages(MSG_REFRESH_STATS);
}
@Override
public void onDestroy() {
super.onDestroy();
if (getActivity().isChangingConfigurations()) {
mStatsHelper.storeState();
}
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
if (!mHideRefresh) {
MenuItem refresh = menu.add(0, MENU_STATS_REFRESH, 0, R.string.menu_stats_refresh)
.setIcon(com.android.internal.R.drawable.ic_menu_refresh)
.setAlphabeticShortcut('r');
refresh.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM |
MenuItem.SHOW_AS_ACTION_WITH_TEXT);
}
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_STATS_REFRESH:
mStatsHelper.clearStats();
refreshStats();
mHandler.removeMessages(MSG_REFRESH_STATS);
return true;
}
return super.onOptionsItemSelected(item);
}
protected void refreshStats() {
mStatsHelper.refreshStats(BatteryStats.STATS_SINCE_CHARGED, mUm.getUserProfiles());
}
protected void updatePreference(BatteryHistoryPreference historyPref) {
historyPref.setStats(mStatsHelper);
}
private boolean updateBatteryStatus(Intent intent) {
if (intent != null) {
String batteryLevel = com.android.settings.Utils.getBatteryPercentage(intent);
String batteryStatus = com.android.settings.Utils.getBatteryStatus(getResources(),
intent);
if (!batteryLevel.equals(mBatteryLevel) || !batteryStatus.equals(mBatteryStatus)) {
mBatteryLevel = batteryLevel;
mBatteryStatus = batteryStatus;
return true;
}
}
return false;
}
void hideRefreshButton(boolean hide) {
mHideRefresh = hide;
}
static final int MSG_REFRESH_STATS = 100;
private final Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_REFRESH_STATS:
mStatsHelper.clearStats();
refreshStats();
break;
}
}
};
private BroadcastReceiver mBatteryInfoReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (Intent.ACTION_BATTERY_CHANGED.equals(action)
&& updateBatteryStatus(intent)) {
if (!mHandler.hasMessages(MSG_REFRESH_STATS)) {
mHandler.sendEmptyMessageDelayed(MSG_REFRESH_STATS, 500);
}
}
}
};
}
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