1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings; 18 19 import android.content.Context; 20 import android.content.Intent; 21 import android.database.ContentObserver; 22 import android.os.Handler; 23 import android.os.Message; 24 import android.os.SystemProperties; 25 import android.os.UserHandle; 26 import android.preference.CheckBoxPreference; 27 import android.preference.Preference; 28 import android.preference.SwitchPreference; 29 import android.provider.Settings; 30 31 import com.android.internal.telephony.PhoneStateIntentReceiver; 32 import com.android.internal.telephony.TelephonyProperties; 33 34 public class AirplaneModeEnabler implements Preference.OnPreferenceChangeListener { 35 36 private final Context mContext; 37 38 private PhoneStateIntentReceiver mPhoneStateReceiver; 39 40 private final SwitchPreference mSwitchPref; 41 42 private static final int EVENT_SERVICE_STATE_CHANGED = 3; 43 44 private Handler mHandler = new Handler() { 45 @Override 46 public void handleMessage(Message msg) { 47 switch (msg.what) { 48 case EVENT_SERVICE_STATE_CHANGED: 49 onAirplaneModeChanged(); 50 break; 51 } 52 } 53 }; 54 55 private ContentObserver mAirplaneModeObserver = new ContentObserver(new Handler()) { 56 @Override 57 public void onChange(boolean selfChange) { 58 onAirplaneModeChanged(); 59 } 60 }; 61 62 public AirplaneModeEnabler(Context context, SwitchPreference airplaneModeCheckBoxPreference) { 63 64 mContext = context; 65 mSwitchPref = airplaneModeCheckBoxPreference; 66 67 airplaneModeCheckBoxPreference.setPersistent(false); 68 69 mPhoneStateReceiver = new PhoneStateIntentReceiver(mContext, mHandler); 70 mPhoneStateReceiver.notifyServiceState(EVENT_SERVICE_STATE_CHANGED); 71 } 72 73 public void resume() { 74 75 mSwitchPref.setChecked(isAirplaneModeOn(mContext)); 76 77 mPhoneStateReceiver.registerIntent(); 78 mSwitchPref.setOnPreferenceChangeListener(this); 79 mContext.getContentResolver().registerContentObserver( 80 Settings.Global.getUriFor(Settings.Global.AIRPLANE_MODE_ON), true, 81 mAirplaneModeObserver); 82 } 83 84 public void pause() { 85 mPhoneStateReceiver.unregisterIntent(); 86 mSwitchPref.setOnPreferenceChangeListener(null); 87 mContext.getContentResolver().unregisterContentObserver(mAirplaneModeObserver); 88 } 89 90 public static boolean isAirplaneModeOn(Context context) { 91 return Settings.Global.getInt(context.getContentResolver(), 92 Settings.Global.AIRPLANE_MODE_ON, 0) != 0; 93 } 94 95 private void setAirplaneModeOn(boolean enabling) { 96 // Change the system setting 97 Settings.Global.putInt(mContext.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 98 enabling ? 1 : 0); 99 // Update the UI to reflect system setting 100 mSwitchPref.setChecked(enabling); 101 102 // Post the intent 103 Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); 104 intent.putExtra("state", enabling); 105 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 106 } 107 108 /** 109 * Called when we've received confirmation that the airplane mode was set. 110 * TODO: We update the checkbox summary when we get notified 111 * that mobile radio is powered up/down. We should not have dependency 112 * on one radio alone. We need to do the following: 113 * - handle the case of wifi/bluetooth failures 114 * - mobile does not send failure notification, fail on timeout. 115 */ 116 private void onAirplaneModeChanged() { 117 mSwitchPref.setChecked(isAirplaneModeOn(mContext)); 118 } 119 120 /** 121 * Called when someone clicks on the checkbox preference. 122 */ 123 public boolean onPreferenceChange(Preference preference, Object newValue) { 124 if (Boolean.parseBoolean( 125 SystemProperties.get(TelephonyProperties.PROPERTY_INECM_MODE))) { 126 // In ECM mode, do not update database at this point 127 } else { 128 setAirplaneModeOn((Boolean) newValue); 129 } 130 return true; 131 } 132 133 public void setAirplaneModeInECM(boolean isECMExit, boolean isAirplaneModeOn) { 134 if (isECMExit) { 135 // update database based on the current checkbox state 136 setAirplaneModeOn(isAirplaneModeOn); 137 } else { 138 // update summary 139 onAirplaneModeChanged(); 140 } 141 } 142 143 } 144