| /* |
| * Copyright (C) 2017 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.wifi.tether; |
| |
| import static android.net.ConnectivityManager.TETHERING_WIFI; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.net.ConnectivityManager; |
| import android.net.wifi.WifiManager; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.provider.Settings; |
| import androidx.annotation.VisibleForTesting; |
| |
| import com.android.settings.datausage.DataSaverBackend; |
| import com.android.settings.widget.SwitchWidgetController; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.events.OnStart; |
| import com.android.settingslib.core.lifecycle.events.OnStop; |
| |
| public class WifiTetherSwitchBarController implements SwitchWidgetController.OnSwitchChangeListener, |
| LifecycleObserver, OnStart, OnStop, DataSaverBackend.Listener { |
| |
| private static final IntentFilter WIFI_INTENT_FILTER; |
| |
| private final Context mContext; |
| private final SwitchWidgetController mSwitchBar; |
| private final ConnectivityManager mConnectivityManager; |
| private final WifiManager mWifiManager; |
| |
| @VisibleForTesting |
| final DataSaverBackend mDataSaverBackend; |
| @VisibleForTesting |
| final ConnectivityManager.OnStartTetheringCallback mOnStartTetheringCallback = |
| new ConnectivityManager.OnStartTetheringCallback() { |
| @Override |
| public void onTetheringFailed() { |
| super.onTetheringFailed(); |
| mSwitchBar.setChecked(false); |
| updateWifiSwitch(); |
| } |
| }; |
| |
| static { |
| WIFI_INTENT_FILTER = new IntentFilter(WifiManager.WIFI_AP_STATE_CHANGED_ACTION); |
| WIFI_INTENT_FILTER.addAction(Intent.ACTION_AIRPLANE_MODE_CHANGED); |
| } |
| |
| WifiTetherSwitchBarController(Context context, SwitchWidgetController switchBar) { |
| mContext = context; |
| mSwitchBar = switchBar; |
| mDataSaverBackend = new DataSaverBackend(context); |
| mConnectivityManager = |
| (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); |
| mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); |
| mSwitchBar.setChecked(mWifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_ENABLED); |
| mSwitchBar.setListener(this); |
| updateWifiSwitch(); |
| } |
| |
| @Override |
| public void onStart() { |
| mDataSaverBackend.addListener(this); |
| mSwitchBar.startListening(); |
| mContext.registerReceiver(mReceiver, WIFI_INTENT_FILTER); |
| } |
| |
| @Override |
| public void onStop() { |
| mDataSaverBackend.remListener(this); |
| mSwitchBar.stopListening(); |
| mContext.unregisterReceiver(mReceiver); |
| } |
| |
| @Override |
| public boolean onSwitchToggled(boolean isChecked) { |
| if (!isChecked) { |
| stopTether(); |
| } else if (!mWifiManager.isWifiApEnabled()) { |
| startTether(); |
| } |
| return true; |
| } |
| |
| void stopTether() { |
| mSwitchBar.setEnabled(false); |
| mConnectivityManager.stopTethering(TETHERING_WIFI); |
| } |
| |
| void startTether() { |
| mSwitchBar.setEnabled(false); |
| mConnectivityManager.startTethering(TETHERING_WIFI, true /* showProvisioningUi */, |
| mOnStartTetheringCallback, new Handler(Looper.getMainLooper())); |
| } |
| |
| private final BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (WifiManager.WIFI_AP_STATE_CHANGED_ACTION.equals(action)) { |
| final int state = intent.getIntExtra( |
| WifiManager.EXTRA_WIFI_AP_STATE, WifiManager.WIFI_AP_STATE_FAILED); |
| handleWifiApStateChanged(state); |
| } else if (Intent.ACTION_AIRPLANE_MODE_CHANGED.equals(action)) { |
| updateWifiSwitch(); |
| } |
| } |
| }; |
| |
| private void handleWifiApStateChanged(int state) { |
| switch (state) { |
| case WifiManager.WIFI_AP_STATE_ENABLING: |
| mSwitchBar.setEnabled(false); |
| break; |
| case WifiManager.WIFI_AP_STATE_ENABLED: |
| if (!mSwitchBar.isChecked()) { |
| mSwitchBar.setChecked(true); |
| } |
| updateWifiSwitch(); |
| break; |
| case WifiManager.WIFI_AP_STATE_DISABLING: |
| if (mSwitchBar.isChecked()) { |
| mSwitchBar.setChecked(false); |
| } |
| mSwitchBar.setEnabled(false); |
| break; |
| case WifiManager.WIFI_AP_STATE_DISABLED: |
| mSwitchBar.setChecked(false); |
| updateWifiSwitch(); |
| break; |
| default: |
| mSwitchBar.setChecked(false); |
| updateWifiSwitch(); |
| break; |
| } |
| } |
| |
| private void updateWifiSwitch() { |
| boolean isAirplaneMode = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.AIRPLANE_MODE_ON, 0) != 0; |
| if (!isAirplaneMode) { |
| mSwitchBar.setEnabled(!mDataSaverBackend.isDataSaverEnabled()); |
| } else { |
| mSwitchBar.setEnabled(false); |
| } |
| } |
| |
| @Override |
| public void onDataSaverChanged(boolean isDataSaving) { |
| updateWifiSwitch(); |
| } |
| |
| @Override |
| public void onWhitelistStatusChanged(int uid, boolean isWhitelisted) { |
| // we don't care, since we just want to read the value |
| } |
| |
| @Override |
| public void onBlacklistStatusChanged(int uid, boolean isBlacklisted) { |
| // we don't care, since we just want to read the value |
| } |
| } |