From 0e36d959d0fc2dbf7bbec2d33f297b400ac01197 Mon Sep 17 00:00:00 2001
From: Julia Reynolds <juliacr@google.com>
Date: Tue, 30 Mar 2021 16:32:48 -0400
Subject: Allow apps to migrate NLS filter settings

On a per user vs manifest wide basis.

Test: atest, cts-verifier
Bug: 184027330
Change-Id: Iae591765e410e360f289692bac012a1f26574add
---
 core/java/android/app/INotificationManager.aidl    |  1 +
 .../notification/NotificationListenerFilter.java   | 14 +++++++++----
 .../notification/NotificationListenerService.java  | 23 ++++++++++++++++++++++
 3 files changed, 34 insertions(+), 4 deletions(-)

(limited to 'core/java/android')

diff --git a/core/java/android/app/INotificationManager.aidl b/core/java/android/app/INotificationManager.aidl
index a5f8f103e437..858fa0605ea1 100644
--- a/core/java/android/app/INotificationManager.aidl
+++ b/core/java/android/app/INotificationManager.aidl
@@ -227,6 +227,7 @@ interface INotificationManager
 
     NotificationListenerFilter getListenerFilter(in ComponentName cn, int userId);
     void setListenerFilter(in ComponentName cn, int userId, in NotificationListenerFilter nlf);
+    void migrateNotificationFilter(in INotificationListener token, int defaultTypes, in List<String> disallowedPkgs);
 
     void setToastRateLimitingEnabled(boolean enable);
 }
diff --git a/core/java/android/service/notification/NotificationListenerFilter.java b/core/java/android/service/notification/NotificationListenerFilter.java
index 9de75cac159a..a69d33c17e9d 100644
--- a/core/java/android/service/notification/NotificationListenerFilter.java
+++ b/core/java/android/service/notification/NotificationListenerFilter.java
@@ -31,15 +31,17 @@ import android.util.ArraySet;
  * @hide
  */
 public class NotificationListenerFilter implements Parcelable {
+
+    private static final int DEFAULT_TYPES = FLAG_FILTER_TYPE_CONVERSATIONS
+            | FLAG_FILTER_TYPE_ALERTING
+            | FLAG_FILTER_TYPE_SILENT
+            | FLAG_FILTER_TYPE_ONGOING;
     private int mAllowedNotificationTypes;
     // VersionedPackage is holding the pkg name and pkg uid
     private ArraySet<VersionedPackage> mDisallowedPackages;
 
     public NotificationListenerFilter() {
-        mAllowedNotificationTypes = FLAG_FILTER_TYPE_CONVERSATIONS
-                | FLAG_FILTER_TYPE_ALERTING
-                | FLAG_FILTER_TYPE_SILENT
-                | FLAG_FILTER_TYPE_ONGOING;
+        mAllowedNotificationTypes = DEFAULT_TYPES;
         mDisallowedPackages = new ArraySet<>();
     }
 
@@ -80,6 +82,10 @@ public class NotificationListenerFilter implements Parcelable {
         return (mAllowedNotificationTypes & type) != 0;
     }
 
+    public boolean areAllTypesAllowed() {
+        return DEFAULT_TYPES == mAllowedNotificationTypes;
+    }
+
     public boolean isPackageAllowed(VersionedPackage pkg) {
         return !mDisallowedPackages.contains(pkg);
     }
diff --git a/core/java/android/service/notification/NotificationListenerService.java b/core/java/android/service/notification/NotificationListenerService.java
index 09c3b2effcb0..6c775852fcee 100644
--- a/core/java/android/service/notification/NotificationListenerService.java
+++ b/core/java/android/service/notification/NotificationListenerService.java
@@ -792,6 +792,29 @@ public abstract class NotificationListenerService extends Service {
         }
     }
 
+    /**
+     * Lets an app migrate notification filters from its app into the OS.
+     *
+     * <p>This call will be ignored if the app has already migrated these settings or the user
+     * has set filters in the UI. This method is intended for user specific settings; if an app has
+     * already specified defaults types in its manifest with
+     * {@link #META_DATA_DEFAULT_FILTER_TYPES}, the defaultTypes option will be ignored.</p>
+     * @param defaultTypes A value representing the types of notifications that this listener should
+     * receive by default
+     * @param disallowedPkgs A list of package names whose notifications should not be seen by this
+     * listener, by default, because the listener does not process or display them, or because a
+     * user had previously disallowed these packages in the listener app's UI
+     */
+    public final void migrateNotificationFilter(@NotificationFilterTypes int defaultTypes,
+            @Nullable List<String> disallowedPkgs) {
+        if (!isBound()) return;
+        try {
+            getNotificationInterface().migrateNotificationFilter(
+                    mWrapper, defaultTypes, disallowedPkgs);
+        } catch (android.os.RemoteException ex) {
+            Log.v(TAG, "Unable to contact notification manager", ex);
+        }
+    }
 
     /**
      * Inform the notification manager that these notifications have been viewed by the
-- 
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