java/com/android/incallui/ExternalCallNotifier.java - LeafOS-Project/android_packages_apps_Dialer - Gitiles

 /*
  * 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.incallui;

 import android.app.Notification;
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.drawable.BitmapDrawable;
 import android.net.Uri;
 import android.telecom.Call;
 import android.telecom.PhoneAccount;
 import android.telecom.VideoProfile;
 import android.text.BidiFormatter;
 import android.text.TextDirectionHeuristics;
 import android.text.TextUtils;
 import android.util.ArrayMap;

 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;

 import com.android.contacts.common.ContactsUtils;
 import com.android.contacts.common.compat.CallCompat;
 import com.android.dialer.R;
 import com.android.dialer.common.Assert;
 import com.android.dialer.contactphoto.BitmapUtil;
 import com.android.dialer.contacts.ContactsComponent;
 import com.android.dialer.notification.DialerNotificationManager;
 import com.android.dialer.notification.NotificationChannelId;
 import com.android.dialer.telecom.TelecomCallUtil;
 import com.android.dialer.theme.base.ThemeComponent;
 import com.android.incallui.call.CallList;
 import com.android.incallui.call.DialerCall;
 import com.android.incallui.call.DialerCallDelegate;
 import com.android.incallui.call.ExternalCallList;
 import java.util.Map;

 /**
  * Handles the display of notifications for "external calls".
  *
  * <p>External calls are a representation of a call which is in progress on the user's other device
  * (e.g. another phone, or a watch).
  */
 public class ExternalCallNotifier implements ExternalCallList.ExternalCallListener {

   /**
    * Common tag for all external call notifications. Unlike other grouped notifications in Dialer,
    * external call notifications are uniquely identified by ID.
    */
   private static final String NOTIFICATION_TAG = "EXTERNAL_CALL";

   private static final int GROUP_SUMMARY_NOTIFICATION_ID = -1;
   private static final String GROUP_SUMMARY_NOTIFICATION_TAG = "GroupSummary_ExternalCall";
   /**
    * Key used to associate all external call notifications and the summary as belonging to a single
    * group.
    */
   private static final String GROUP_KEY = "ExternalCallGroup";

   private final Context context;
   private final ContactInfoCache contactInfoCache;
   private Map<Call, NotificationInfo> notifications = new ArrayMap<>();
   private int nextUniqueNotificationId;

   /** Initializes a new instance of the external call notifier. */
   public ExternalCallNotifier(
           @NonNull Context context, @NonNull ContactInfoCache contactInfoCache) {
     this.context = context;
     this.contactInfoCache = contactInfoCache;
   }

   /**
    * Handles the addition of a new external call by showing a new notification. Triggered by {@link
    * CallList#onCallAdded(android.telecom.Call)}.
    */
   @Override
   public void onExternalCallAdded(android.telecom.Call call) {
     Log.i(this, "onExternalCallAdded " + call);
     Assert.checkArgument(!notifications.containsKey(call));
     NotificationInfo info = new NotificationInfo(call, nextUniqueNotificationId++);
     notifications.put(call, info);

     showNotifcation(info);
   }

   /**
    * Handles the removal of an external call by hiding its associated notification. Triggered by
    * {@link CallList#onCallRemoved(android.telecom.Call)}.
    */
   @Override
   public void onExternalCallRemoved(android.telecom.Call call) {
     Log.i(this, "onExternalCallRemoved " + call);

     dismissNotification(call);
   }

   /** Handles updates to an external call. */
   @Override
   public void onExternalCallUpdated(Call call) {
     Assert.checkArgument(notifications.containsKey(call));
     postNotification(notifications.get(call));
   }

   @Override
   public void onExternalCallPulled(Call call) {
     // no-op; if an external call is pulled, it will be removed via onExternalCallRemoved.
   }

   /**
    * Initiates a call pull given a notification ID.
    *
    * @param notificationId The notification ID associated with the external call which is to be
    *     pulled.
    */
   public void pullExternalCall(int notificationId) {
     for (NotificationInfo info : notifications.values()) {
       if (info.getNotificationId() == notificationId
           && CallCompat.canPullExternalCall(info.getCall())) {
         info.getCall().pullExternalCall();
         return;
       }
     }
   }

   /**
    * Shows a notification for a new external call. Performs a contact cache lookup to find any
    * associated photo and information for the call.
    */
   private void showNotifcation(final NotificationInfo info) {
     // We make a call to the contact info cache to query for supplemental data to what the
     // call provides.  This includes the contact name and photo.
     // This callback will always get called immediately and synchronously with whatever data
     // it has available, and may make a subsequent call later (same thread) if it had to
     // call into the contacts provider for more data.
     DialerCall dialerCall =
         new DialerCall(
             context,
             new DialerCallDelegateStub(),
             info.getCall(),
             false /* registerCallback */);

     contactInfoCache.findInfo(
         dialerCall,
         false /* isIncoming */,
         new ContactInfoCache.ContactInfoCacheCallback() {
           @Override
           public void onContactInfoComplete(
               String callId, ContactInfoCache.ContactCacheEntry entry) {

             // Ensure notification still exists as the external call could have been
             // removed during async contact info lookup.
             if (notifications.containsKey(info.getCall())) {
               saveContactInfo(info, entry);
             }
           }

           @Override
           public void onImageLoadComplete(String callId, ContactInfoCache.ContactCacheEntry entry) {

             // Ensure notification still exists as the external call could have been
             // removed during async contact info lookup.
             if (notifications.containsKey(info.getCall())) {
               savePhoto(info, entry);
             }
           }
         });
   }

   /** Dismisses a notification for an external call. */
   private void dismissNotification(Call call) {
     Assert.checkArgument(notifications.containsKey(call));

     // This will also dismiss the group summary if there are no more external call notifications.
     DialerNotificationManager.cancel(
         context, NOTIFICATION_TAG, notifications.get(call).getNotificationId());

     notifications.remove(call);
   }

   /**
    * Attempts to build a large icon to use for the notification based on the contact info and post
    * the updated notification to the notification manager.
    */
   private void savePhoto(NotificationInfo info, ContactInfoCache.ContactCacheEntry entry) {
     Bitmap largeIcon = getLargeIconToDisplay(context, entry, info.getCall());
     if (largeIcon != null) {
       largeIcon = getRoundedIcon(context, largeIcon);
     }
     info.setLargeIcon(largeIcon);
     postNotification(info);
   }

   /**
    * Builds and stores the contact information the notification will display and posts the updated
    * notification to the notification manager.
    */
   private void saveContactInfo(NotificationInfo info, ContactInfoCache.ContactCacheEntry entry) {
     info.setContentTitle(getContentTitle(context, entry, info.getCall()));
     info.setPersonReference(getPersonReference(entry, info.getCall()));
     postNotification(info);
   }

   /** Rebuild an existing or show a new notification given {@link NotificationInfo}. */
   private void postNotification(NotificationInfo info) {
     Notification.Builder builder = new Notification.Builder(context);
     // Set notification as ongoing since calls are long-running versus a point-in-time notice.
     builder.setOngoing(true);
     // Make the notification prioritized over the other normal notifications.
     builder.setPriority(Notification.PRIORITY_HIGH);
     builder.setGroup(GROUP_KEY);

     boolean isVideoCall = VideoProfile.isVideo(info.getCall().getDetails().getVideoState());
     // Set the content ("Ongoing call on another device")
     builder.setContentText(
         context.getString(
             isVideoCall
                 ? R.string.notification_external_video_call
                 : R.string.notification_external_call));
     builder.setSmallIcon(R.drawable.quantum_ic_call_vd_theme_24);
     builder.setContentTitle(info.getContentTitle());
     builder.setLargeIcon(info.getLargeIcon());
     builder.setColor(ThemeComponent.get(context).theme().getColorPrimary());
     builder.addPerson(info.getPersonReference());
     builder.setChannelId(NotificationChannelId.DEFAULT);

     // Where the external call supports being transferred to the local device, add an action
     // to the notification to initiate the call pull process.
     if (CallCompat.canPullExternalCall(info.getCall())) {

       Intent intent =
           new Intent(
               NotificationBroadcastReceiver.ACTION_PULL_EXTERNAL_CALL,
               null,
               context,
               NotificationBroadcastReceiver.class);
       intent.putExtra(
           NotificationBroadcastReceiver.EXTRA_NOTIFICATION_ID, info.getNotificationId());
       builder.addAction(
           new Notification.Action.Builder(
                   R.drawable.quantum_ic_call_vd_theme_24,
                   context.getString(
                       isVideoCall
                           ? R.string.notification_take_video_call
                           : R.string.notification_take_call),
                   PendingIntent.getBroadcast(context, info.getNotificationId(), intent, 0))
               .build());
     }

     /**
      * This builder is used for the notification shown when the device is locked and the user has
      * set their notification settings to 'hide sensitive content' {@see
      * Notification.Builder#setPublicVersion}.
      */
     Notification.Builder publicBuilder = new Notification.Builder(context);
     publicBuilder.setSmallIcon(R.drawable.quantum_ic_call_vd_theme_24);
     publicBuilder.setColor(ThemeComponent.get(context).theme().getColorPrimary());
     publicBuilder.setChannelId(NotificationChannelId.DEFAULT);

     builder.setPublicVersion(publicBuilder.build());
     Notification notification = builder.build();

     DialerNotificationManager.notify(
         context, NOTIFICATION_TAG, info.getNotificationId(), notification);

     showGroupSummaryNotification(context);
   }

   /**
    * Finds a large icon to display in a notification for a call. For conference calls, a conference
    * call icon is used, otherwise if contact info is specified, the user's contact photo or avatar
    * is used.
    *
    * @param context The context.
    * @param contactInfo The contact cache info.
    * @param call The call.
    * @return The large icon to use for the notification.
    */
   private @Nullable Bitmap getLargeIconToDisplay(
       Context context, ContactInfoCache.ContactCacheEntry contactInfo, android.telecom.Call call) {

     Bitmap largeIcon = null;
     if (call.getDetails().hasProperty(android.telecom.Call.Details.PROPERTY_CONFERENCE)
         && !call.getDetails()
             .hasProperty(android.telecom.Call.Details.PROPERTY_GENERIC_CONFERENCE)) {

       largeIcon =
           BitmapFactory.decodeResource(
               context.getResources(), R.drawable.quantum_ic_group_vd_theme_24);
     }
     if (contactInfo.photo != null && (contactInfo.photo instanceof BitmapDrawable)) {
       largeIcon = ((BitmapDrawable) contactInfo.photo).getBitmap();
     }
     return largeIcon;
   }

   /**
    * Given a bitmap, returns a rounded version of the icon suitable for display in a notification.
    *
    * @param context The context.
    * @param bitmap The bitmap to round.
    * @return The rounded bitmap.
    */
   private @Nullable Bitmap getRoundedIcon(Context context, @Nullable Bitmap bitmap) {
     if (bitmap == null) {
       return null;
     }
     final int height =
         (int) context.getResources().getDimension(android.R.dimen.notification_large_icon_height);
     final int width =
         (int) context.getResources().getDimension(android.R.dimen.notification_large_icon_width);
     return BitmapUtil.getRoundedBitmap(bitmap, width, height);
   }

   /**
    * Builds a notification content title for a call. If the call is a conference call, it is
    * identified as such. Otherwise an attempt is made to show an associated contact name or phone
    * number.
    *
    * @param context The context.
    * @param contactInfo The contact info which was looked up in the contact cache.
    * @param call The call to generate a title for.
    * @return The content title.
    */
   private @Nullable String getContentTitle(
       Context context, ContactInfoCache.ContactCacheEntry contactInfo, android.telecom.Call call) {

     if (call.getDetails().hasProperty(android.telecom.Call.Details.PROPERTY_CONFERENCE)) {
       return CallerInfoUtils.getConferenceString(
           context,
           call.getDetails().hasProperty(android.telecom.Call.Details.PROPERTY_GENERIC_CONFERENCE));
     }

     String preferredName =
         ContactsComponent.get(context)
             .contactDisplayPreferences()
             .getDisplayName(contactInfo.namePrimary, contactInfo.nameAlternative);
     if (TextUtils.isEmpty(preferredName)) {
       return TextUtils.isEmpty(contactInfo.number)
           ? null
           : BidiFormatter.getInstance()
               .unicodeWrap(contactInfo.number, TextDirectionHeuristics.LTR);
     }
     return preferredName;
   }

   /**
    * Gets a "person reference" for a notification, used by the system to determine whether the
    * notification should be allowed past notification interruption filters.
    *
    * @param contactInfo The contact info from cache.
    * @param call The call.
    * @return the person reference.
    */
   private String getPersonReference(ContactInfoCache.ContactCacheEntry contactInfo, Call call) {

     String number = TelecomCallUtil.getNumber(call);
     // Query {@link Contacts#CONTENT_LOOKUP_URI} directly with work lookup key is not allowed.
     // So, do not pass {@link Contacts#CONTENT_LOOKUP_URI} to NotificationManager to avoid
     // NotificationManager using it.
     if (contactInfo.lookupUri != null && contactInfo.userType != ContactsUtils.USER_TYPE_WORK) {
       return contactInfo.lookupUri.toString();
     } else if (!TextUtils.isEmpty(number)) {
       return Uri.fromParts(PhoneAccount.SCHEME_TEL, number, null).toString();
     }
     return "";
   }

   private static class DialerCallDelegateStub implements DialerCallDelegate {

     @Override
     public DialerCall getDialerCallFromTelecomCall(Call telecomCall) {
       return null;
     }
   }

   /** Represents a call and associated cached notification data. */
   private static class NotificationInfo {

     @NonNull private final Call call;
     private final int notificationId;
     @Nullable private String contentTitle;
     @Nullable private Bitmap largeIcon;
     @Nullable private String personReference;

     public NotificationInfo(@NonNull Call call, int notificationId) {
       this.call = call;
       this.notificationId = notificationId;
     }

     public Call getCall() {
       return call;
     }

     public int getNotificationId() {
       return notificationId;
     }

     public @Nullable String getContentTitle() {
       return contentTitle;
     }

     public void setContentTitle(@Nullable String contentTitle) {
       this.contentTitle = contentTitle;
     }

     public @Nullable Bitmap getLargeIcon() {
       return largeIcon;
     }

     public void setLargeIcon(@Nullable Bitmap largeIcon) {
       this.largeIcon = largeIcon;
     }

     public @Nullable String getPersonReference() {
       return personReference;
     }

     public void setPersonReference(@Nullable String personReference) {
       this.personReference = personReference;
     }
   }

   private static void showGroupSummaryNotification(@NonNull Context context) {
     Notification.Builder summary = new Notification.Builder(context);
     // Set notification as ongoing since calls are long-running versus a point-in-time notice.
     summary.setOngoing(true);
     // Make the notification prioritized over the other normal notifications.
     summary.setPriority(Notification.PRIORITY_HIGH);
     summary.setGroup(GROUP_KEY);
     summary.setGroupSummary(true);
     summary.setSmallIcon(R.drawable.quantum_ic_call_vd_theme_24);
     summary.setChannelId(NotificationChannelId.DEFAULT);
     DialerNotificationManager.notify(
         context, GROUP_SUMMARY_NOTIFICATION_TAG, GROUP_SUMMARY_NOTIFICATION_ID, summary.build());
   }
 }
	/*
	* 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.incallui;

	import android.app.Notification;
	import android.app.PendingIntent;
	import android.content.Context;
	import android.content.Intent;
	import android.graphics.Bitmap;
	import android.graphics.BitmapFactory;
	import android.graphics.drawable.BitmapDrawable;
	import android.net.Uri;
	import android.telecom.Call;
	import android.telecom.PhoneAccount;
	import android.telecom.VideoProfile;
	import android.text.BidiFormatter;
	import android.text.TextDirectionHeuristics;
	import android.text.TextUtils;
	import android.util.ArrayMap;

	import androidx.annotation.NonNull;
	import androidx.annotation.Nullable;

	import com.android.contacts.common.ContactsUtils;
	import com.android.contacts.common.compat.CallCompat;
	import com.android.dialer.R;
	import com.android.dialer.common.Assert;
	import com.android.dialer.contactphoto.BitmapUtil;
	import com.android.dialer.contacts.ContactsComponent;
	import com.android.dialer.notification.DialerNotificationManager;
	import com.android.dialer.notification.NotificationChannelId;
	import com.android.dialer.telecom.TelecomCallUtil;
	import com.android.dialer.theme.base.ThemeComponent;
	import com.android.incallui.call.CallList;
	import com.android.incallui.call.DialerCall;
	import com.android.incallui.call.DialerCallDelegate;
	import com.android.incallui.call.ExternalCallList;
	import java.util.Map;

	/**
	* Handles the display of notifications for "external calls".
	*
	* <p>External calls are a representation of a call which is in progress on the user's other device
	* (e.g. another phone, or a watch).
	*/
	public class ExternalCallNotifier implements ExternalCallList.ExternalCallListener {

	/**
	* Common tag for all external call notifications. Unlike other grouped notifications in Dialer,
	* external call notifications are uniquely identified by ID.
	*/
	private static final String NOTIFICATION_TAG = "EXTERNAL_CALL";

	private static final int GROUP_SUMMARY_NOTIFICATION_ID = -1;
	private static final String GROUP_SUMMARY_NOTIFICATION_TAG = "GroupSummary_ExternalCall";
	/**
	* Key used to associate all external call notifications and the summary as belonging to a single
	* group.
	*/
	private static final String GROUP_KEY = "ExternalCallGroup";

	private final Context context;
	private final ContactInfoCache contactInfoCache;
	private Map<Call, NotificationInfo> notifications = new ArrayMap<>();
	private int nextUniqueNotificationId;

	/** Initializes a new instance of the external call notifier. */
	public ExternalCallNotifier(
	@NonNull Context context, @NonNull ContactInfoCache contactInfoCache) {
	this.context = context;
	this.contactInfoCache = contactInfoCache;
	}

	/**
	* Handles the addition of a new external call by showing a new notification. Triggered by {@link
	* CallList#onCallAdded(android.telecom.Call)}.
	*/
	@Override
	public void onExternalCallAdded(android.telecom.Call call) {
	Log.i(this, "onExternalCallAdded " + call);
	Assert.checkArgument(!notifications.containsKey(call));
	NotificationInfo info = new NotificationInfo(call, nextUniqueNotificationId++);
	notifications.put(call, info);

	showNotifcation(info);
	}

	/**
	* Handles the removal of an external call by hiding its associated notification. Triggered by
	* {@link CallList#onCallRemoved(android.telecom.Call)}.
	*/
	@Override
	public void onExternalCallRemoved(android.telecom.Call call) {
	Log.i(this, "onExternalCallRemoved " + call);

	dismissNotification(call);
	}

	/** Handles updates to an external call. */
	@Override
	public void onExternalCallUpdated(Call call) {
	Assert.checkArgument(notifications.containsKey(call));
	postNotification(notifications.get(call));
	}

	@Override
	public void onExternalCallPulled(Call call) {
	// no-op; if an external call is pulled, it will be removed via onExternalCallRemoved.
	}

	/**
	* Initiates a call pull given a notification ID.
	*
	* @param notificationId The notification ID associated with the external call which is to be
	* pulled.
	*/
	public void pullExternalCall(int notificationId) {
	for (NotificationInfo info : notifications.values()) {
	if (info.getNotificationId() == notificationId
	&& CallCompat.canPullExternalCall(info.getCall())) {
	info.getCall().pullExternalCall();
	return;
	}
	}
	}

	/**
	* Shows a notification for a new external call. Performs a contact cache lookup to find any
	* associated photo and information for the call.
	*/
	private void showNotifcation(final NotificationInfo info) {
	// We make a call to the contact info cache to query for supplemental data to what the
	// call provides. This includes the contact name and photo.
	// This callback will always get called immediately and synchronously with whatever data
	// it has available, and may make a subsequent call later (same thread) if it had to
	// call into the contacts provider for more data.
	DialerCall dialerCall =
	new DialerCall(
	context,
	new DialerCallDelegateStub(),
	info.getCall(),
	false /* registerCallback */);

	contactInfoCache.findInfo(
	dialerCall,
	false /* isIncoming */,
	new ContactInfoCache.ContactInfoCacheCallback() {
	@Override
	public void onContactInfoComplete(
	String callId, ContactInfoCache.ContactCacheEntry entry) {

	// Ensure notification still exists as the external call could have been
	// removed during async contact info lookup.
	if (notifications.containsKey(info.getCall())) {
	saveContactInfo(info, entry);
	}
	}

	@Override
	public void onImageLoadComplete(String callId, ContactInfoCache.ContactCacheEntry entry) {

	// Ensure notification still exists as the external call could have been
	// removed during async contact info lookup.
	if (notifications.containsKey(info.getCall())) {
	savePhoto(info, entry);
	}
	}
	});
	}

	/** Dismisses a notification for an external call. */
	private void dismissNotification(Call call) {
	Assert.checkArgument(notifications.containsKey(call));

	// This will also dismiss the group summary if there are no more external call notifications.
	DialerNotificationManager.cancel(
	context, NOTIFICATION_TAG, notifications.get(call).getNotificationId());

	notifications.remove(call);
	}

	/**
	* Attempts to build a large icon to use for the notification based on the contact info and post
	* the updated notification to the notification manager.
	*/
	private void savePhoto(NotificationInfo info, ContactInfoCache.ContactCacheEntry entry) {
	Bitmap largeIcon = getLargeIconToDisplay(context, entry, info.getCall());
	if (largeIcon != null) {
	largeIcon = getRoundedIcon(context, largeIcon);
	}
	info.setLargeIcon(largeIcon);
	postNotification(info);
	}

	/**
	* Builds and stores the contact information the notification will display and posts the updated
	* notification to the notification manager.
	*/
	private void saveContactInfo(NotificationInfo info, ContactInfoCache.ContactCacheEntry entry) {
	info.setContentTitle(getContentTitle(context, entry, info.getCall()));
	info.setPersonReference(getPersonReference(entry, info.getCall()));
	postNotification(info);
	}

	/** Rebuild an existing or show a new notification given {@link NotificationInfo}. */
	private void postNotification(NotificationInfo info) {
	Notification.Builder builder = new Notification.Builder(context);
	// Set notification as ongoing since calls are long-running versus a point-in-time notice.
	builder.setOngoing(true);
	// Make the notification prioritized over the other normal notifications.
	builder.setPriority(Notification.PRIORITY_HIGH);
	builder.setGroup(GROUP_KEY);

	boolean isVideoCall = VideoProfile.isVideo(info.getCall().getDetails().getVideoState());
	// Set the content ("Ongoing call on another device")
	builder.setContentText(
	context.getString(
	isVideoCall
	? R.string.notification_external_video_call
	: R.string.notification_external_call));
	builder.setSmallIcon(R.drawable.quantum_ic_call_vd_theme_24);
	builder.setContentTitle(info.getContentTitle());
	builder.setLargeIcon(info.getLargeIcon());
	builder.setColor(ThemeComponent.get(context).theme().getColorPrimary());
	builder.addPerson(info.getPersonReference());
	builder.setChannelId(NotificationChannelId.DEFAULT);

	// Where the external call supports being transferred to the local device, add an action
	// to the notification to initiate the call pull process.
	if (CallCompat.canPullExternalCall(info.getCall())) {

	Intent intent =
	new Intent(
	NotificationBroadcastReceiver.ACTION_PULL_EXTERNAL_CALL,
	null,
	context,
	NotificationBroadcastReceiver.class);
	intent.putExtra(
	NotificationBroadcastReceiver.EXTRA_NOTIFICATION_ID, info.getNotificationId());
	builder.addAction(
	new Notification.Action.Builder(
	R.drawable.quantum_ic_call_vd_theme_24,
	context.getString(
	isVideoCall
	? R.string.notification_take_video_call
	: R.string.notification_take_call),
	PendingIntent.getBroadcast(context, info.getNotificationId(), intent, 0))
	.build());
	}

	/**
	* This builder is used for the notification shown when the device is locked and the user has
	* set their notification settings to 'hide sensitive content' {@see
	* Notification.Builder#setPublicVersion}.
	*/
	Notification.Builder publicBuilder = new Notification.Builder(context);
	publicBuilder.setSmallIcon(R.drawable.quantum_ic_call_vd_theme_24);
	publicBuilder.setColor(ThemeComponent.get(context).theme().getColorPrimary());
	publicBuilder.setChannelId(NotificationChannelId.DEFAULT);

	builder.setPublicVersion(publicBuilder.build());
	Notification notification = builder.build();

	DialerNotificationManager.notify(
	context, NOTIFICATION_TAG, info.getNotificationId(), notification);

	showGroupSummaryNotification(context);
	}

	/**
	* Finds a large icon to display in a notification for a call. For conference calls, a conference
	* call icon is used, otherwise if contact info is specified, the user's contact photo or avatar
	* is used.
	*
	* @param context The context.
	* @param contactInfo The contact cache info.
	* @param call The call.
	* @return The large icon to use for the notification.
	*/
	private @Nullable Bitmap getLargeIconToDisplay(
	Context context, ContactInfoCache.ContactCacheEntry contactInfo, android.telecom.Call call) {

	Bitmap largeIcon = null;
	if (call.getDetails().hasProperty(android.telecom.Call.Details.PROPERTY_CONFERENCE)
	&& !call.getDetails()
	.hasProperty(android.telecom.Call.Details.PROPERTY_GENERIC_CONFERENCE)) {

	largeIcon =
	BitmapFactory.decodeResource(
	context.getResources(), R.drawable.quantum_ic_group_vd_theme_24);
	}
	if (contactInfo.photo != null && (contactInfo.photo instanceof BitmapDrawable)) {
	largeIcon = ((BitmapDrawable) contactInfo.photo).getBitmap();
	}
	return largeIcon;
	}

	/**
	* Given a bitmap, returns a rounded version of the icon suitable for display in a notification.
	*
	* @param context The context.
	* @param bitmap The bitmap to round.
	* @return The rounded bitmap.
	*/
	private @Nullable Bitmap getRoundedIcon(Context context, @Nullable Bitmap bitmap) {
	if (bitmap == null) {
	return null;
	}
	final int height =
	(int) context.getResources().getDimension(android.R.dimen.notification_large_icon_height);
	final int width =
	(int) context.getResources().getDimension(android.R.dimen.notification_large_icon_width);
	return BitmapUtil.getRoundedBitmap(bitmap, width, height);
	}

	/**
	* Builds a notification content title for a call. If the call is a conference call, it is
	* identified as such. Otherwise an attempt is made to show an associated contact name or phone
	* number.
	*
	* @param context The context.
	* @param contactInfo The contact info which was looked up in the contact cache.
	* @param call The call to generate a title for.
	* @return The content title.
	*/
	private @Nullable String getContentTitle(
	Context context, ContactInfoCache.ContactCacheEntry contactInfo, android.telecom.Call call) {

	if (call.getDetails().hasProperty(android.telecom.Call.Details.PROPERTY_CONFERENCE)) {
	return CallerInfoUtils.getConferenceString(
	context,
	call.getDetails().hasProperty(android.telecom.Call.Details.PROPERTY_GENERIC_CONFERENCE));
	}

	String preferredName =
	ContactsComponent.get(context)
	.contactDisplayPreferences()
	.getDisplayName(contactInfo.namePrimary, contactInfo.nameAlternative);
	if (TextUtils.isEmpty(preferredName)) {
	return TextUtils.isEmpty(contactInfo.number)
	? null
	: BidiFormatter.getInstance()
	.unicodeWrap(contactInfo.number, TextDirectionHeuristics.LTR);
	}
	return preferredName;
	}

	/**
	* Gets a "person reference" for a notification, used by the system to determine whether the
	* notification should be allowed past notification interruption filters.
	*
	* @param contactInfo The contact info from cache.
	* @param call The call.
	* @return the person reference.
	*/
	private String getPersonReference(ContactInfoCache.ContactCacheEntry contactInfo, Call call) {

	String number = TelecomCallUtil.getNumber(call);
	// Query {@link Contacts#CONTENT_LOOKUP_URI} directly with work lookup key is not allowed.
	// So, do not pass {@link Contacts#CONTENT_LOOKUP_URI} to NotificationManager to avoid
	// NotificationManager using it.
	if (contactInfo.lookupUri != null && contactInfo.userType != ContactsUtils.USER_TYPE_WORK) {
	return contactInfo.lookupUri.toString();
	} else if (!TextUtils.isEmpty(number)) {
	return Uri.fromParts(PhoneAccount.SCHEME_TEL, number, null).toString();
	}
	return "";
	}

	private static class DialerCallDelegateStub implements DialerCallDelegate {

	@Override
	public DialerCall getDialerCallFromTelecomCall(Call telecomCall) {
	return null;
	}
	}

	/** Represents a call and associated cached notification data. */
	private static class NotificationInfo {

	@NonNull private final Call call;
	private final int notificationId;
	@Nullable private String contentTitle;
	@Nullable private Bitmap largeIcon;
	@Nullable private String personReference;

	public NotificationInfo(@NonNull Call call, int notificationId) {
	this.call = call;
	this.notificationId = notificationId;
	}

	public Call getCall() {
	return call;
	}

	public int getNotificationId() {
	return notificationId;
	}

	public @Nullable String getContentTitle() {
	return contentTitle;
	}

	public void setContentTitle(@Nullable String contentTitle) {
	this.contentTitle = contentTitle;
	}

	public @Nullable Bitmap getLargeIcon() {
	return largeIcon;
	}

	public void setLargeIcon(@Nullable Bitmap largeIcon) {
	this.largeIcon = largeIcon;
	}

	public @Nullable String getPersonReference() {
	return personReference;
	}

	public void setPersonReference(@Nullable String personReference) {
	this.personReference = personReference;
	}
	}

	private static void showGroupSummaryNotification(@NonNull Context context) {
	Notification.Builder summary = new Notification.Builder(context);
	// Set notification as ongoing since calls are long-running versus a point-in-time notice.
	summary.setOngoing(true);
	// Make the notification prioritized over the other normal notifications.
	summary.setPriority(Notification.PRIORITY_HIGH);
	summary.setGroup(GROUP_KEY);
	summary.setGroupSummary(true);
	summary.setSmallIcon(R.drawable.quantum_ic_call_vd_theme_24);
	summary.setChannelId(NotificationChannelId.DEFAULT);
	DialerNotificationManager.notify(
	context, GROUP_SUMMARY_NOTIFICATION_TAG, GROUP_SUMMARY_NOTIFICATION_ID, summary.build());
	}
	}