diff --git a/packages/SystemUI/res/values/config.xml b/packages/SystemUI/res/values/config.xml
index e912962ad0a39..30537df111993 100644
--- a/packages/SystemUI/res/values/config.xml
+++ b/packages/SystemUI/res/values/config.xml
@@ -669,4 +669,7 @@
false
+
+
+ @null
diff --git a/packages/SystemUI/src/com/android/systemui/communal/service/CommunalSourcePrimer.java b/packages/SystemUI/src/com/android/systemui/communal/service/CommunalSourcePrimer.java
new file mode 100644
index 0000000000000..bb3fef34e4cb4
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/communal/service/CommunalSourcePrimer.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2021 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.systemui.communal.service;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.IBinder;
+import android.util.Log;
+
+import com.android.systemui.R;
+import com.android.systemui.SystemUI;
+import com.android.systemui.communal.CommunalSourceMonitor;
+import com.android.systemui.dagger.SysUISingleton;
+import com.android.systemui.dagger.qualifiers.Main;
+import com.android.systemui.shared.communal.ICommunalSource;
+
+import java.util.concurrent.Executor;
+
+import javax.inject.Inject;
+
+/**
+ * The {@link CommunalSourcePrimer} is responsible for priming SystemUI with a pre-configured
+ * Communal source. The SystemUI service binds to the component to retrieve the
+ * {@link com.android.systemui.communal.CommunalSource}. {@link CommunalSourcePrimer} has no effect
+ * if there is no pre-defined value.
+ */
+@SysUISingleton
+public class CommunalSourcePrimer extends SystemUI {
+ private static final String TAG = "CommunalSourcePrimer";
+ private static final boolean DEBUG = false;
+ private final Context mContext;
+ private final Executor mMainExecutor;
+ private final CommunalSourceMonitor mMonitor;
+ private static final String ACTION_COMMUNAL_SOURCE = "android.intent.action.COMMUNAL_SOURCE";
+
+ private final ServiceConnection mConnection = new ServiceConnection() {
+ @Override
+ public void onServiceConnected(ComponentName className, IBinder service) {
+ final ICommunalSource source = ICommunalSource.Stub.asInterface(service);
+ if (DEBUG) {
+ Log.d(TAG, "onServiceConnected. source;" + source);
+ }
+
+ mMonitor.setSource(
+ source != null ? new CommunalSourceImpl(mMainExecutor, source) : null);
+
+ }
+
+ @Override
+ public void onServiceDisconnected(ComponentName className) {
+ }
+ };
+
+ @Inject
+ public CommunalSourcePrimer(Context context, @Main Executor mainExecutor,
+ CommunalSourceMonitor monitor) {
+ super(context);
+ mContext = context;
+ mMainExecutor = mainExecutor;
+ mMonitor = monitor;
+ }
+
+ @Override
+ public void start() {
+ if (DEBUG) {
+ Log.d(TAG, "start");
+ }
+ }
+
+ @Override
+ protected void onBootCompleted() {
+ super.onBootCompleted();
+ final String serviceComponent = mContext.getString(R.string.config_communalSourceComponent);
+
+ if (DEBUG) {
+ Log.d(TAG, "onBootCompleted. communal source component:" + serviceComponent);
+ }
+
+ if (serviceComponent == null || serviceComponent.isEmpty()) {
+ return;
+ }
+
+ final Intent intent = new Intent();
+ intent.setAction(ACTION_COMMUNAL_SOURCE);
+ intent.setComponent(ComponentName.unflattenFromString(serviceComponent));
+
+ mContext.bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
+ }
+}