Creates test service for on-device intelligence to request handles

Test: Tested locally
Change-Id: I0c3a6b76c7e9fd2432261be1e942d0daeea1645a

packages/SystemUI/AndroidManifest.xml

@@ -288,6 +288,11 @@
             android:exported="false"
             android:permission="com.android.systemui.permission.SELF" />
 
+        <service android:name=".assist.AssistHandleService"
+            android:exported="true"
+            android:enabled="false"
+        />
+
         <!-- started from PhoneWindowManager
              TODO: Should have an android:permission attribute -->
         <service android:name=".screenshot.TakeScreenshotService"

packages/SystemUI/src/com/android/systemui/assist/AssistHandleService.kt

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2019 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.assist
+
+import android.app.Service
+import android.content.Intent
+import android.os.IBinder
+import dagger.Lazy
+import javax.inject.Inject
+
+class AssistHandleService @Inject constructor(private val assistManager: Lazy<AssistManager>)
+    : Service() {
+
+    private val binder = object : IAssistHandleService.Stub() {
+        override fun requestAssistHandles() {
+            assistManager.get().requestAssistHandles()
+        }
+    }
+
+    override fun onBind(intent: Intent?): IBinder? {
+        return binder
+    }
+}

packages/SystemUI/src/com/android/systemui/assist/AssistModule.java

@@ -16,6 +16,7 @@
 
 package com.android.systemui.assist;
 
+import android.app.Service;
 import android.content.Context;
 import android.os.Handler;
 import android.os.HandlerThread;
@@ -33,8 +34,11 @@ import java.util.Map;
 import javax.inject.Named;
 import javax.inject.Singleton;
 
+import dagger.Binds;
 import dagger.Module;
 import dagger.Provides;
+import dagger.multibindings.ClassKey;
+import dagger.multibindings.IntoMap;
 
 /** Module for dagger injections related to the Assistant. */
 @Module
@@ -87,4 +91,9 @@ public abstract class AssistModule {
     static Clock provideSystemClock() {
         return SystemClock::uptimeMillis;
     }
+
+    @Binds
+    @IntoMap
+    @ClassKey(AssistHandleService.class)
+    abstract Service bindAssistHandleService(AssistHandleService assistHandleService);
 }

packages/SystemUI/src/com/android/systemui/assist/IAssistHandleService.aidl

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) 2009, 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.assist;
+
+/** Interface implemented by AssisthandleService and called by on-device intelligence. */
+interface IAssistHandleService {
+
+    /** Request that the Assistant Handles be shown. */
+    oneway void requestAssistHandles();
+}