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/*
* 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.annotation.TargetApi;
import android.app.Notification;
import android.app.NotificationManager;
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.os.Build.VERSION_CODES;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.os.BuildCompat;
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 com.android.contacts.common.ContactsUtils;
import com.android.contacts.common.compat.CallCompat;
import com.android.contacts.common.preference.ContactsPreferences;
import com.android.contacts.common.util.ContactDisplayUtils;
import com.android.dialer.contactphoto.BitmapUtil;
import com.android.dialer.notification.NotificationChannelId;
import com.android.incallui.call.DialerCall;
import com.android.incallui.call.DialerCallDelegate;
import com.android.incallui.call.ExternalCallList;
import com.android.incallui.latencyreport.LatencyReport;
import com.android.incallui.util.TelecomCallUtil;
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 {
/** Tag used with the notification manager to uniquely identify external call notifications. */
private static final String NOTIFICATION_TAG = "EXTERNAL_CALL";
private static final int NOTIFICATION_SUMMARY_ID = -1;
private final Context mContext;
private final ContactInfoCache mContactInfoCache;
private Map<Call, NotificationInfo> mNotifications = new ArrayMap<>();
private int mNextUniqueNotificationId;
private ContactsPreferences mContactsPreferences;
private boolean mShowingSummary;
/** Initializes a new instance of the external call notifier. */
public ExternalCallNotifier(
@NonNull Context context, @NonNull ContactInfoCache contactInfoCache) {
mContext = context;
mContactsPreferences = ContactsPreferencesFactory.newContactsPreferences(mContext);
mContactInfoCache = 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);
if (mNotifications.containsKey(call)) {
throw new IllegalArgumentException();
}
NotificationInfo info = new NotificationInfo(call, mNextUniqueNotificationId++);
mNotifications.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) {
if (!mNotifications.containsKey(call)) {
throw new IllegalArgumentException();
}
postNotification(mNotifications.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.
*/
@TargetApi(VERSION_CODES.N_MR1)
public void pullExternalCall(int notificationId) {
for (NotificationInfo info : mNotifications.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(
mContext,
new DialerCallDelegateStub(),
info.getCall(),
new LatencyReport(),
false /* registerCallback */);
mContactInfoCache.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 (mNotifications.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 (mNotifications.containsKey(info.getCall())) {
savePhoto(info, entry);
}
}
});
}
/** Dismisses a notification for an external call. */
private void dismissNotification(Call call) {
if (!mNotifications.containsKey(call)) {
throw new IllegalArgumentException();
}
NotificationManager notificationManager =
(NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.cancel(NOTIFICATION_TAG, mNotifications.get(call).getNotificationId());
mNotifications.remove(call);
if (mShowingSummary && mNotifications.size() <= 1) {
// Where a summary notification is showing and there is now not enough notifications to
// necessitate a summary, cancel the summary.
notificationManager.cancel(NOTIFICATION_TAG, NOTIFICATION_SUMMARY_ID);
mShowingSummary = false;
// If there is still a single call requiring a notification, re-post the notification as a
// standalone notification without a summary notification.
if (mNotifications.size() == 1) {
postNotification(mNotifications.values().iterator().next());
}
}
}
/**
* 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(mContext, entry, info.getCall());
if (largeIcon != null) {
largeIcon = getRoundedIcon(mContext, 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(mContext, mContactsPreferences, 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(mContext);
// 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(NOTIFICATION_TAG);
boolean isVideoCall = VideoProfile.isVideo(info.getCall().getDetails().getVideoState());
// Set the content ("Ongoing call on another device")
builder.setContentText(
mContext.getString(
isVideoCall
? R.string.notification_external_video_call
: R.string.notification_external_call));
builder.setSmallIcon(R.drawable.quantum_ic_call_white_24);
builder.setContentTitle(info.getContentTitle());
builder.setLargeIcon(info.getLargeIcon());
builder.setColor(mContext.getResources().getColor(R.color.dialer_theme_color));
builder.addPerson(info.getPersonReference());
if (BuildCompat.isAtLeastO()) {
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,
mContext,
NotificationBroadcastReceiver.class);
intent.putExtra(
NotificationBroadcastReceiver.EXTRA_NOTIFICATION_ID, info.getNotificationId());
builder.addAction(
new Notification.Action.Builder(
R.drawable.quantum_ic_call_white_24,
mContext.getString(
isVideoCall
? R.string.notification_take_video_call
: R.string.notification_take_call),
PendingIntent.getBroadcast(mContext, 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(mContext);
publicBuilder.setSmallIcon(R.drawable.quantum_ic_call_white_24);
publicBuilder.setColor(mContext.getResources().getColor(R.color.dialer_theme_color));
if (BuildCompat.isAtLeastO()) {
publicBuilder.setChannelId(NotificationChannelId.DEFAULT);
}
builder.setPublicVersion(publicBuilder.build());
Notification notification = builder.build();
NotificationManager notificationManager =
(NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(NOTIFICATION_TAG, info.getNotificationId(), notification);
if (!mShowingSummary && mNotifications.size() > 1) {
// If the number of notifications shown is > 1, and we're not already showing a group summary,
// build one now. This will ensure the like notifications are grouped together.
Notification.Builder summary = new Notification.Builder(mContext);
// 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(NOTIFICATION_TAG);
summary.setGroupSummary(true);
summary.setSmallIcon(R.drawable.quantum_ic_call_white_24);
if (BuildCompat.isAtLeastO()) {
summary.setChannelId(NotificationChannelId.DEFAULT);
}
notificationManager.notify(NOTIFICATION_TAG, NOTIFICATION_SUMMARY_ID, summary.build());
mShowingSummary = true;
}
}
/**
* 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 contactsPreferences Contacts preferences, used to determine the preferred formatting for
* contact names.
* @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,
@Nullable ContactsPreferences contactsPreferences,
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 =
ContactDisplayUtils.getPreferredDisplayName(
contactInfo.namePrimary, contactInfo.nameAlternative, contactsPreferences);
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 mCall;
private final int mNotificationId;
@Nullable private String mContentTitle;
@Nullable private Bitmap mLargeIcon;
@Nullable private String mPersonReference;
public NotificationInfo(@NonNull Call call, int notificationId) {
mCall = call;
mNotificationId = notificationId;
}
public Call getCall() {
return mCall;
}
public int getNotificationId() {
return mNotificationId;
}
public @Nullable String getContentTitle() {
return mContentTitle;
}
public void setContentTitle(@Nullable String contentTitle) {
mContentTitle = contentTitle;
}
public @Nullable Bitmap getLargeIcon() {
return mLargeIcon;
}
public void setLargeIcon(@Nullable Bitmap largeIcon) {
mLargeIcon = largeIcon;
}
public @Nullable String getPersonReference() {
return mPersonReference;
}
public void setPersonReference(@Nullable String personReference) {
mPersonReference = personReference;
}
}
}
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