[Settings] Sync summary of call preference with dialer

Replacing the display of summary part within Settings' calls preference
by VoIP account when configured calling account settings within Dialer.

The click behavior for calls preference remain unchanged, due to this is
the configuration for subscription (instead of for all kinds of
accounts).

Bug: 136277187
Test: manual
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=DefaultSubscriptionControllerTest
Merged-In: Iaa5fa1f3efe7ba2463caa0b450077f885d42b1c8
Change-Id: I6f2f44d305119f09e2188de702f14f2506a4903c

src/com/android/settings/network/telephony/DefaultSubscriptionController.java

@@ -19,10 +19,21 @@ package com.android.settings.network.telephony;
 import static androidx.lifecycle.Lifecycle.Event.ON_PAUSE;
 import static androidx.lifecycle.Lifecycle.Event.ON_RESUME;
 
+import android.content.ComponentName;
 import android.content.Context;
+import android.telecom.PhoneAccount;
+import android.telecom.PhoneAccountHandle;
+import android.telecom.TelecomManager;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 
+import androidx.lifecycle.Lifecycle;
+import androidx.lifecycle.LifecycleObserver;
+import androidx.lifecycle.OnLifecycleEvent;
+import androidx.preference.ListPreference;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
 import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
 import com.android.settings.network.SubscriptionUtil;
@@ -31,13 +42,6 @@ import com.android.settings.network.SubscriptionsChangeListener;
 import java.util.ArrayList;
 import java.util.List;
 
-import androidx.lifecycle.Lifecycle;
-import androidx.lifecycle.LifecycleObserver;
-import androidx.lifecycle.OnLifecycleEvent;
-import androidx.preference.ListPreference;
-import androidx.preference.Preference;
-import androidx.preference.PreferenceScreen;
-
 /**
  * This implements common controller functionality for a Preference letting the user see/change
  * what mobile network subscription is used by default for some service controlled by the
@@ -51,10 +55,17 @@ public abstract class DefaultSubscriptionController extends BasePreferenceContro
     protected SubscriptionsChangeListener mChangeListener;
     protected ListPreference mPreference;
     protected SubscriptionManager mManager;
+    protected TelecomManager mTelecomManager;
+
+    private static final String EMERGENCY_ACCOUNT_HANDLE_ID = "E";
+    private static final ComponentName PSTN_CONNECTION_SERVICE_COMPONENT =
+            new ComponentName("com.android.phone",
+                    "com.android.services.telephony.TelephonyConnectionService");
 
     public DefaultSubscriptionController(Context context, String preferenceKey) {
         super(context, preferenceKey);
         mManager = context.getSystemService(SubscriptionManager.class);
+        mTelecomManager = mContext.getSystemService(TelecomManager.class);
         mChangeListener = new SubscriptionsChangeListener(context, this);
     }
 
@@ -103,8 +114,14 @@ public abstract class DefaultSubscriptionController extends BasePreferenceContro
 
     @Override
     public CharSequence getSummary() {
+        final PhoneAccountHandle handle = getDefaultCallingAccountHandle();
+        if ((handle != null) && (!isCallingAccountBindToSubscription(handle))) {
+            // display VoIP account in summary when configured through settings within dialer
+            return getLabelFromCallingAccount(handle);
+        }
         final SubscriptionInfo info = getDefaultSubscriptionInfo();
         if (info != null) {
+            // display subscription based account
             return info.getDisplayName();
         } else {
             return mContext.getString(R.string.calls_and_sms_ask_every_time);
@@ -161,6 +178,56 @@ public abstract class DefaultSubscriptionController extends BasePreferenceContro
         }
     }
 
+    /**
+     * Get default calling account
+     *
+     * @return current calling account {@link PhoneAccountHandle}
+     */
+    public PhoneAccountHandle getDefaultCallingAccountHandle() {
+        final PhoneAccountHandle currentSelectPhoneAccount =
+                mTelecomManager.getUserSelectedOutgoingPhoneAccount();
+        if (currentSelectPhoneAccount == null) {
+            return null;
+        }
+        final List<PhoneAccountHandle> accountHandles =
+                mTelecomManager.getCallCapablePhoneAccounts(false);
+        final PhoneAccountHandle emergencyAccountHandle = new PhoneAccountHandle(
+                PSTN_CONNECTION_SERVICE_COMPONENT, EMERGENCY_ACCOUNT_HANDLE_ID);
+        if (currentSelectPhoneAccount.equals(emergencyAccountHandle)) {
+            return null;
+        }
+        for (PhoneAccountHandle handle : accountHandles) {
+            if (currentSelectPhoneAccount.equals(handle)) {
+                return currentSelectPhoneAccount;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Check if calling account bind to subscription
+     *
+     * @param handle {@link PhoneAccountHandle} for specific calling account
+     */
+    public boolean isCallingAccountBindToSubscription(PhoneAccountHandle handle) {
+        return mTelecomManager.getPhoneAccount(handle)
+                .hasCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION);
+    }
+
+    /**
+     * Get label from calling account
+     *
+     * @param handle to get label from {@link PhoneAccountHandle}
+     * @return label of calling account
+     */
+    public CharSequence getLabelFromCallingAccount(PhoneAccountHandle handle) {
+        CharSequence label = mTelecomManager.getPhoneAccount(handle).getLabel();
+        if (label != null) {
+            label = mContext.getPackageManager().getUserBadgedLabel(label, handle.getUserHandle());
+        }
+        return (label != null) ? label : "";
+    }
+
     @Override
     public boolean onPreferenceChange(Preference preference, Object newValue) {
         final int subscriptionId = Integer.parseInt((String) newValue);

src/com/android/settings/network/telephony/SmsDefaultSubscriptionController.java

@@ -17,6 +17,7 @@
 package com.android.settings.network.telephony;
 
 import android.content.Context;
+import android.telecom.PhoneAccountHandle;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 
@@ -40,4 +41,10 @@ public class SmsDefaultSubscriptionController extends DefaultSubscriptionControl
     protected void setDefaultSubscription(int subscriptionId) {
         mManager.setDefaultSmsSubId(subscriptionId);
     }
+
+    @Override
+    public PhoneAccountHandle getDefaultCallingAccountHandle() {
+        // Not supporting calling account override by VoIP
+        return null;
+    }
 }