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/*
* Copyright (C) 2007 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;
import com.android.internal.telephony.PhoneStateIntentReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.provider.Settings;
import android.telephony.ServiceState;
public class AirplaneModeEnabler implements Preference.OnPreferenceChangeListener {
private final Context mContext;
private PhoneStateIntentReceiver mPhoneStateReceiver;
private final CheckBoxPreference mCheckBoxPref;
private static final int EVENT_SERVICE_STATE_CHANGED = 3;
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case EVENT_SERVICE_STATE_CHANGED:
onAirplaneModeChanged();
break;
}
}
};
public AirplaneModeEnabler(Context context, CheckBoxPreference airplaneModeCheckBoxPreference) {
mContext = context;
mCheckBoxPref = airplaneModeCheckBoxPreference;
airplaneModeCheckBoxPreference.setPersistent(false);
mPhoneStateReceiver = new PhoneStateIntentReceiver(mContext, mHandler);
mPhoneStateReceiver.notifyServiceState(EVENT_SERVICE_STATE_CHANGED);
}
public void resume() {
// This is the widget enabled state, not the preference toggled state
mCheckBoxPref.setEnabled(true);
mCheckBoxPref.setChecked(isAirplaneModeOn(mContext));
mPhoneStateReceiver.registerIntent();
mCheckBoxPref.setOnPreferenceChangeListener(this);
}
public void pause() {
mPhoneStateReceiver.unregisterIntent();
mCheckBoxPref.setOnPreferenceChangeListener(null);
}
static boolean isAirplaneModeOn(Context context) {
return Settings.System.getInt(context.getContentResolver(),
Settings.System.AIRPLANE_MODE_ON, 0) != 0;
}
private void setAirplaneModeOn(boolean enabling) {
mCheckBoxPref.setEnabled(false);
mCheckBoxPref.setSummary(enabling ? R.string.airplane_mode_turning_on
: R.string.airplane_mode_turning_off);
// Change the system setting
Settings.System.putInt(mContext.getContentResolver(), Settings.System.AIRPLANE_MODE_ON,
enabling ? 1 : 0);
// Post the intent
Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
intent.putExtra("state", enabling);
mContext.sendBroadcast(intent);
}
/**
* Called when we've received confirmation that the airplane mode was set.
*/
private void onAirplaneModeChanged() {
ServiceState serviceState = mPhoneStateReceiver.getServiceState();
boolean airplaneModeEnabled = serviceState.getState() == ServiceState.STATE_POWER_OFF;
mCheckBoxPref.setChecked(airplaneModeEnabled);
mCheckBoxPref.setSummary(airplaneModeEnabled ? null :
mContext.getString(R.string.airplane_mode_summary));
mCheckBoxPref.setEnabled(true);
}
/**
* Called when someone clicks on the checkbox preference.
*/
public boolean onPreferenceChange(Preference preference, Object newValue) {
setAirplaneModeOn((Boolean) newValue);
return true;
}
}
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