src/com/android/settings/network/telephony/NetworkProviderWifiCallingGroup.java - platform/packages/apps/Settings - Git at Google

 /*
  * Copyright (C) 2020 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.network.telephony;

 import static androidx.lifecycle.Lifecycle.Event;

 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.os.PersistableBundle;
 import android.provider.Settings;
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
 import android.telephony.CarrierConfigManager;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyManager;
 import android.util.ArrayMap;
 import android.util.Log;

 import androidx.annotation.VisibleForTesting;
 import androidx.lifecycle.LifecycleObserver;
 import androidx.lifecycle.OnLifecycleEvent;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceGroup;
 import androidx.preference.PreferenceScreen;

 import com.android.settings.R;
 import com.android.settings.network.SubscriptionUtil;
 import com.android.settings.network.SubscriptionsChangeListener;
 import com.android.settings.network.ims.WifiCallingQueryImsState;
 import com.android.settingslib.core.AbstractPreferenceController;
 import com.android.settingslib.core.lifecycle.Lifecycle;

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

 /**
  * Copied the logic of WiFi calling from {@link WifiCallingPreferenceController}.
  */
 public class NetworkProviderWifiCallingGroup extends
         AbstractPreferenceController implements LifecycleObserver,
         SubscriptionsChangeListener.SubscriptionsChangeListenerClient {

     private static final String TAG = "NetworkProviderWifiCallingGroup";
     private static final int PREF_START_ORDER = 10;
     private static final String KEY_PREFERENCE_WIFICALLING_GROUP = "provider_model_wfc_group";

     @VisibleForTesting
     protected CarrierConfigManager mCarrierConfigManager;
     private SubscriptionManager mSubscriptionManager;
     private PhoneCallStateTelephonyCallback mTelephonyCallback;
     private String mPreferenceGroupKey;
     private PreferenceGroup mPreferenceGroup;
     private Map<Integer, TelephonyManager> mTelephonyManagerList = new HashMap<>();
     private Map<Integer, PhoneAccountHandle> mSimCallManagerList = new HashMap<>();
     private Map<Integer, Preference> mWifiCallingForSubPreferences;
     private List<SubscriptionInfo> mSubInfoListForWfc;
     private SubscriptionsChangeListener mChangeListener;

     public NetworkProviderWifiCallingGroup(Context context, Lifecycle lifecycle,
             String preferenceGroupKey) {
         super(context);
         mCarrierConfigManager = context.getSystemService(CarrierConfigManager.class);
         mSubscriptionManager = context.getSystemService(SubscriptionManager.class);
         mPreferenceGroupKey = preferenceGroupKey;
         mWifiCallingForSubPreferences = new ArrayMap<>();
         setSubscriptionInfoList(context);
         if (mTelephonyCallback == null) {
             mTelephonyCallback = new PhoneCallStateTelephonyCallback();
         }
         lifecycle.addObserver(this);
         mChangeListener = new SubscriptionsChangeListener(context, this);
     }

     private void setSubscriptionInfoList(Context context) {
         mSubInfoListForWfc = new ArrayList<>(
                 SubscriptionUtil.getActiveSubscriptions(mSubscriptionManager));
         mSubInfoListForWfc.removeIf(info -> {
             final int subId = info.getSubscriptionId();
             setTelephonyManagerForSubscriptionId(context, subId);
             setPhoneAccountHandleForSubscriptionId(context, subId);
             boolean isExisted = mSubInfoListForWfc.contains(info);
             boolean shouldShowWfcForSub = shouldShowWifiCallingForSub(subId);
             if (!shouldShowWfcForSub && isExisted) {
                 return true;
             }
             return false;
         });
         Log.d(TAG, "setSubscriptionInfoList: mSubInfoListForWfc size:"
                 + mSubInfoListForWfc.size());
     }

     private void setTelephonyManagerForSubscriptionId(Context context, int subId) {
         TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class)
                 .createForSubscriptionId(subId);
         mTelephonyManagerList.put(subId, telephonyManager);
     }

     private void setPhoneAccountHandleForSubscriptionId(Context context, int subId) {
         PhoneAccountHandle phoneAccountHandle = context.getSystemService(TelecomManager.class)
                 .getSimCallManagerForSubscription(subId);
         mSimCallManagerList.put(subId, phoneAccountHandle);
     }

     private TelephonyManager getTelephonyManagerForSubscriptionId(int subId) {
         return mTelephonyManagerList.get(subId);
     }

     @VisibleForTesting
     protected PhoneAccountHandle getPhoneAccountHandleForSubscriptionId(int subId) {
         return mSimCallManagerList.get(subId);
     }

     @VisibleForTesting
     protected WifiCallingQueryImsState queryImsState(int subId) {
         return new WifiCallingQueryImsState(mContext, subId);
     }

     @OnLifecycleEvent(Event.ON_RESUME)
     public void onResume() {
         if (mChangeListener != null) {
             mChangeListener.start();
         }
         updateListener();
         update();
     }

     @OnLifecycleEvent(Event.ON_PAUSE)
     public void onPause() {
         if (mChangeListener != null) {
             mChangeListener.stop();
         }
         if ((mTelephonyCallback != null)) {
             mTelephonyCallback.unregister();
         }
     }

     @Override
     public boolean isAvailable() {
         if (mSubInfoListForWfc == null) {
             Log.d(TAG, "No active subscriptions, hide the controller");
             return false;
         } else {
             return mSubInfoListForWfc.size() >= 1;
         }
     }

     @Override
     public void displayPreference(PreferenceScreen screen) {
         mPreferenceGroup = screen.findPreference(mPreferenceGroupKey);
         update();
     }

     @Override
     public void updateState(Preference preference) {
         super.updateState(preference);
         // Do nothing in this case since preference is invisible
         if (preference == null) {
             return;
         }
         update();
     }

     private void update() {
         if (mPreferenceGroup == null) {
             Log.d(TAG, "mPreferenceGroup == null");
             return;
         }

         if (!isAvailable()) {
             for (Preference pref : mWifiCallingForSubPreferences.values()) {
                 mPreferenceGroup.removePreference(pref);
             }
             mWifiCallingForSubPreferences.clear();
             return;
         }

         final Map<Integer, Preference> toRemovePreferences = mWifiCallingForSubPreferences;
         mWifiCallingForSubPreferences = new ArrayMap<>();
         setSubscriptionInfoForPreference(toRemovePreferences);
         for (Preference pref : toRemovePreferences.values()) {
             mPreferenceGroup.removePreference(pref);
         }
     }

     private void setSubscriptionInfoForPreference(Map<Integer, Preference> toRemovePreferences) {
         int order = PREF_START_ORDER;
         for (SubscriptionInfo info : mSubInfoListForWfc) {
             final int subId = info.getSubscriptionId();

             if (!shouldShowWifiCallingForSub(subId)) {
                 continue;
             }

             Preference pref = toRemovePreferences.remove(subId);
             if (pref == null) {
                 pref = new Preference(mPreferenceGroup.getContext());
                 mPreferenceGroup.addPreference(pref);
             }

             CharSequence title = SubscriptionUtil.getUniqueSubscriptionDisplayName(info,
                     mContext);
             if (getPhoneAccountHandleForSubscriptionId(subId) != null) {
                 final Intent intent = MobileNetworkUtils.buildPhoneAccountConfigureIntent(
                         mContext,
                         getPhoneAccountHandleForSubscriptionId(subId));
                 if (intent != null) {
                     final PackageManager pm = mContext.getPackageManager();
                     final List<ResolveInfo> resolutions = pm.queryIntentActivities(intent, 0);
                     title = resolutions.get(0).loadLabel(pm);
                     pref.setIntent(intent);
                 }
             }

             pref.setTitle(title);
             pref.setOnPreferenceClickListener(clickedPref -> {
                 final Intent intent = new Intent(
                         mContext,
                         com.android.settings.Settings.WifiCallingSettingsActivity.class);
                 intent.putExtra(Settings.EXTRA_SUB_ID, info.getSubscriptionId());
                 mContext.startActivity(intent);
                 return true;
             });

             pref.setEnabled(getTelephonyManagerForSubscriptionId(subId).getCallState()
                     == TelephonyManager.CALL_STATE_IDLE);
             pref.setOrder(order++);

             int resId = com.android.internal.R.string.wifi_calling_off_summary;
             if (queryImsState(subId).isEnabledByUser()) {
                 resId = R.string.calls_sms_wfc_summary;
             }
             pref.setSummary(resId);

             mWifiCallingForSubPreferences.put(subId, pref);
         }
     }

     // Do nothing in this case since preference will not be impacted.
     @Override
     public void onAirplaneModeChanged(boolean airplaneModeEnabled) {
     }

     @Override
     public void onSubscriptionsChanged() {
         Log.d(TAG, "onSubscriptionsChanged:");
         setSubscriptionInfoList(mContext);
         if (mPreferenceGroup != null) {
             mPreferenceGroup.setVisible(isAvailable());
         }
         updateListener();
         update();
     }

     private void updateListener() {
         for (SubscriptionInfo info : mSubInfoListForWfc) {
             int subId = info.getSubscriptionId();
             if ((mTelephonyCallback != null)) {
                 mTelephonyCallback.register(mContext, subId);
             }
         }
     }

     private class PhoneCallStateTelephonyCallback extends TelephonyCallback implements
             TelephonyCallback.CallStateListener {

         private TelephonyManager mTelephonyManager;

         @Override
         public void onCallStateChanged(int state) {
             update();
         }

         public void register(Context context, int subId) {
             mTelephonyManager = getTelephonyManagerForSubscriptionId(subId);
             mTelephonyManager.registerTelephonyCallback(context.getMainExecutor(), this);
         }

         public void unregister() {
             if (mTelephonyManager != null) {
                 mTelephonyManager.unregisterTelephonyCallback(this);
             }
         }
     }

     /**
      * To indicate that should show the Wi-Fi calling preference or not.
      *
      * It will check these 3 conditions:
      * 1. Check the subscription is valid or not.
      * 2. Check whether Wi-Fi Calling can be perform or not on this subscription.
      * 3. Check the carrier's config (carrier_wfc_ims_available_bool). If true, the carrier
      * supports the Wi-Fi calling, otherwise false.
      */
     @VisibleForTesting
     protected boolean shouldShowWifiCallingForSub(int subId) {
         if (SubscriptionManager.isValidSubscriptionId(subId)
                 && MobileNetworkUtils.isWifiCallingEnabled(
                 mContext, subId, queryImsState(subId),
                 getPhoneAccountHandleForSubscriptionId(subId))
                 && isWifiCallingAvailableForCarrier(subId)) {
             return true;
         }
         return false;
     }

     private boolean isWifiCallingAvailableForCarrier(int subId) {
         boolean isWifiCallingAvailableForCarrier = false;
         if (mCarrierConfigManager != null) {
             final PersistableBundle carrierConfig =
                     mCarrierConfigManager.getConfigForSubId(subId);
             if (carrierConfig != null) {
                 isWifiCallingAvailableForCarrier = carrierConfig.getBoolean(
                         CarrierConfigManager.KEY_CARRIER_WFC_IMS_AVAILABLE_BOOL);
             }
         }
         Log.d(TAG, "isWifiCallingAvailableForCarrier:" + isWifiCallingAvailableForCarrier);
         return isWifiCallingAvailableForCarrier;
     }

     @Override
     public String getPreferenceKey() {
         return KEY_PREFERENCE_WIFICALLING_GROUP;
     }
 }
	/*
	* Copyright (C) 2020 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.network.telephony;

	import static androidx.lifecycle.Lifecycle.Event;

	import android.content.Context;
	import android.content.Intent;
	import android.content.pm.PackageManager;
	import android.content.pm.ResolveInfo;
	import android.os.PersistableBundle;
	import android.provider.Settings;
	import android.telecom.PhoneAccountHandle;
	import android.telecom.TelecomManager;
	import android.telephony.CarrierConfigManager;
	import android.telephony.SubscriptionInfo;
	import android.telephony.SubscriptionManager;
	import android.telephony.TelephonyCallback;
	import android.telephony.TelephonyManager;
	import android.util.ArrayMap;
	import android.util.Log;

	import androidx.annotation.VisibleForTesting;
	import androidx.lifecycle.LifecycleObserver;
	import androidx.lifecycle.OnLifecycleEvent;
	import androidx.preference.Preference;
	import androidx.preference.PreferenceGroup;
	import androidx.preference.PreferenceScreen;

	import com.android.settings.R;
	import com.android.settings.network.SubscriptionUtil;
	import com.android.settings.network.SubscriptionsChangeListener;
	import com.android.settings.network.ims.WifiCallingQueryImsState;
	import com.android.settingslib.core.AbstractPreferenceController;
	import com.android.settingslib.core.lifecycle.Lifecycle;

	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;

	/**
	* Copied the logic of WiFi calling from {@link WifiCallingPreferenceController}.
	*/
	public class NetworkProviderWifiCallingGroup extends
	AbstractPreferenceController implements LifecycleObserver,
	SubscriptionsChangeListener.SubscriptionsChangeListenerClient {

	private static final String TAG = "NetworkProviderWifiCallingGroup";
	private static final int PREF_START_ORDER = 10;
	private static final String KEY_PREFERENCE_WIFICALLING_GROUP = "provider_model_wfc_group";

	@VisibleForTesting
	protected CarrierConfigManager mCarrierConfigManager;
	private SubscriptionManager mSubscriptionManager;
	private PhoneCallStateTelephonyCallback mTelephonyCallback;
	private String mPreferenceGroupKey;
	private PreferenceGroup mPreferenceGroup;
	private Map<Integer, TelephonyManager> mTelephonyManagerList = new HashMap<>();
	private Map<Integer, PhoneAccountHandle> mSimCallManagerList = new HashMap<>();
	private Map<Integer, Preference> mWifiCallingForSubPreferences;
	private List<SubscriptionInfo> mSubInfoListForWfc;
	private SubscriptionsChangeListener mChangeListener;

	public NetworkProviderWifiCallingGroup(Context context, Lifecycle lifecycle,
	String preferenceGroupKey) {
	super(context);
	mCarrierConfigManager = context.getSystemService(CarrierConfigManager.class);
	mSubscriptionManager = context.getSystemService(SubscriptionManager.class);
	mPreferenceGroupKey = preferenceGroupKey;
	mWifiCallingForSubPreferences = new ArrayMap<>();
	setSubscriptionInfoList(context);
	if (mTelephonyCallback == null) {
	mTelephonyCallback = new PhoneCallStateTelephonyCallback();
	}
	lifecycle.addObserver(this);
	mChangeListener = new SubscriptionsChangeListener(context, this);
	}

	private void setSubscriptionInfoList(Context context) {
	mSubInfoListForWfc = new ArrayList<>(
	SubscriptionUtil.getActiveSubscriptions(mSubscriptionManager));
	mSubInfoListForWfc.removeIf(info -> {
	final int subId = info.getSubscriptionId();
	setTelephonyManagerForSubscriptionId(context, subId);
	setPhoneAccountHandleForSubscriptionId(context, subId);
	boolean isExisted = mSubInfoListForWfc.contains(info);
	boolean shouldShowWfcForSub = shouldShowWifiCallingForSub(subId);
	if (!shouldShowWfcForSub && isExisted) {
	return true;
	}
	return false;
	});
	Log.d(TAG, "setSubscriptionInfoList: mSubInfoListForWfc size:"
	+ mSubInfoListForWfc.size());
	}

	private void setTelephonyManagerForSubscriptionId(Context context, int subId) {
	TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class)
	.createForSubscriptionId(subId);
	mTelephonyManagerList.put(subId, telephonyManager);
	}

	private void setPhoneAccountHandleForSubscriptionId(Context context, int subId) {
	PhoneAccountHandle phoneAccountHandle = context.getSystemService(TelecomManager.class)
	.getSimCallManagerForSubscription(subId);
	mSimCallManagerList.put(subId, phoneAccountHandle);
	}

	private TelephonyManager getTelephonyManagerForSubscriptionId(int subId) {
	return mTelephonyManagerList.get(subId);
	}

	@VisibleForTesting
	protected PhoneAccountHandle getPhoneAccountHandleForSubscriptionId(int subId) {
	return mSimCallManagerList.get(subId);
	}

	@VisibleForTesting
	protected WifiCallingQueryImsState queryImsState(int subId) {
	return new WifiCallingQueryImsState(mContext, subId);
	}

	@OnLifecycleEvent(Event.ON_RESUME)
	public void onResume() {
	if (mChangeListener != null) {
	mChangeListener.start();
	}
	updateListener();
	update();
	}

	@OnLifecycleEvent(Event.ON_PAUSE)
	public void onPause() {
	if (mChangeListener != null) {
	mChangeListener.stop();
	}
	if ((mTelephonyCallback != null)) {
	mTelephonyCallback.unregister();
	}
	}

	@Override
	public boolean isAvailable() {
	if (mSubInfoListForWfc == null) {
	Log.d(TAG, "No active subscriptions, hide the controller");
	return false;
	} else {
	return mSubInfoListForWfc.size() >= 1;
	}
	}

	@Override
	public void displayPreference(PreferenceScreen screen) {
	mPreferenceGroup = screen.findPreference(mPreferenceGroupKey);
	update();
	}

	@Override
	public void updateState(Preference preference) {
	super.updateState(preference);
	// Do nothing in this case since preference is invisible
	if (preference == null) {
	return;
	}
	update();
	}

	private void update() {
	if (mPreferenceGroup == null) {
	Log.d(TAG, "mPreferenceGroup == null");
	return;
	}

	if (!isAvailable()) {
	for (Preference pref : mWifiCallingForSubPreferences.values()) {
	mPreferenceGroup.removePreference(pref);
	}
	mWifiCallingForSubPreferences.clear();
	return;
	}

	final Map<Integer, Preference> toRemovePreferences = mWifiCallingForSubPreferences;
	mWifiCallingForSubPreferences = new ArrayMap<>();
	setSubscriptionInfoForPreference(toRemovePreferences);
	for (Preference pref : toRemovePreferences.values()) {
	mPreferenceGroup.removePreference(pref);
	}
	}

	private void setSubscriptionInfoForPreference(Map<Integer, Preference> toRemovePreferences) {
	int order = PREF_START_ORDER;
	for (SubscriptionInfo info : mSubInfoListForWfc) {
	final int subId = info.getSubscriptionId();

	if (!shouldShowWifiCallingForSub(subId)) {
	continue;
	}

	Preference pref = toRemovePreferences.remove(subId);
	if (pref == null) {
	pref = new Preference(mPreferenceGroup.getContext());
	mPreferenceGroup.addPreference(pref);
	}

	CharSequence title = SubscriptionUtil.getUniqueSubscriptionDisplayName(info,
	mContext);
	if (getPhoneAccountHandleForSubscriptionId(subId) != null) {
	final Intent intent = MobileNetworkUtils.buildPhoneAccountConfigureIntent(
	mContext,
	getPhoneAccountHandleForSubscriptionId(subId));
	if (intent != null) {
	final PackageManager pm = mContext.getPackageManager();
	final List<ResolveInfo> resolutions = pm.queryIntentActivities(intent, 0);
	title = resolutions.get(0).loadLabel(pm);
	pref.setIntent(intent);
	}
	}

	pref.setTitle(title);
	pref.setOnPreferenceClickListener(clickedPref -> {
	final Intent intent = new Intent(
	mContext,
	com.android.settings.Settings.WifiCallingSettingsActivity.class);
	intent.putExtra(Settings.EXTRA_SUB_ID, info.getSubscriptionId());
	mContext.startActivity(intent);
	return true;
	});

	pref.setEnabled(getTelephonyManagerForSubscriptionId(subId).getCallState()
	== TelephonyManager.CALL_STATE_IDLE);
	pref.setOrder(order++);

	int resId = com.android.internal.R.string.wifi_calling_off_summary;
	if (queryImsState(subId).isEnabledByUser()) {
	resId = R.string.calls_sms_wfc_summary;
	}
	pref.setSummary(resId);

	mWifiCallingForSubPreferences.put(subId, pref);
	}
	}

	// Do nothing in this case since preference will not be impacted.
	@Override
	public void onAirplaneModeChanged(boolean airplaneModeEnabled) {
	}

	@Override
	public void onSubscriptionsChanged() {
	Log.d(TAG, "onSubscriptionsChanged:");
	setSubscriptionInfoList(mContext);
	if (mPreferenceGroup != null) {
	mPreferenceGroup.setVisible(isAvailable());
	}
	updateListener();
	update();
	}

	private void updateListener() {
	for (SubscriptionInfo info : mSubInfoListForWfc) {
	int subId = info.getSubscriptionId();
	if ((mTelephonyCallback != null)) {
	mTelephonyCallback.register(mContext, subId);
	}
	}
	}

	private class PhoneCallStateTelephonyCallback extends TelephonyCallback implements
	TelephonyCallback.CallStateListener {

	private TelephonyManager mTelephonyManager;

	@Override
	public void onCallStateChanged(int state) {
	update();
	}

	public void register(Context context, int subId) {
	mTelephonyManager = getTelephonyManagerForSubscriptionId(subId);
	mTelephonyManager.registerTelephonyCallback(context.getMainExecutor(), this);
	}

	public void unregister() {
	if (mTelephonyManager != null) {
	mTelephonyManager.unregisterTelephonyCallback(this);
	}
	}
	}

	/**
	* To indicate that should show the Wi-Fi calling preference or not.
	*
	* It will check these 3 conditions:
	* 1. Check the subscription is valid or not.
	* 2. Check whether Wi-Fi Calling can be perform or not on this subscription.
	* 3. Check the carrier's config (carrier_wfc_ims_available_bool). If true, the carrier
	* supports the Wi-Fi calling, otherwise false.
	*/
	@VisibleForTesting
	protected boolean shouldShowWifiCallingForSub(int subId) {
	if (SubscriptionManager.isValidSubscriptionId(subId)
	&& MobileNetworkUtils.isWifiCallingEnabled(
	mContext, subId, queryImsState(subId),
	getPhoneAccountHandleForSubscriptionId(subId))
	&& isWifiCallingAvailableForCarrier(subId)) {
	return true;
	}
	return false;
	}

	private boolean isWifiCallingAvailableForCarrier(int subId) {
	boolean isWifiCallingAvailableForCarrier = false;
	if (mCarrierConfigManager != null) {
	final PersistableBundle carrierConfig =
	mCarrierConfigManager.getConfigForSubId(subId);
	if (carrierConfig != null) {
	isWifiCallingAvailableForCarrier = carrierConfig.getBoolean(
	CarrierConfigManager.KEY_CARRIER_WFC_IMS_AVAILABLE_BOOL);
	}
	}
	Log.d(TAG, "isWifiCallingAvailableForCarrier:" + isWifiCallingAvailableForCarrier);
	return isWifiCallingAvailableForCarrier;
	}

	@Override
	public String getPreferenceKey() {
	return KEY_PREFERENCE_WIFICALLING_GROUP;
	}
	}