/*
 * Copyright 2020 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 androidx.car.app.model;

import android.annotation.SuppressLint;

import androidx.annotation.NonNull;
import androidx.car.app.OnDoneCallback;
import androidx.car.app.annotations.CarProtocol;

/**
 * A host-side delegate for sending
 * {@link androidx.car.app.model.ItemList.OnSelectedListener} events to the car app.
 */
@CarProtocol
public interface OnSelectedDelegate {
    /**
     * Notifies that an item was selected.
     *
     * <p>This event is called even if the selection did not change, for example, if the user
     * selected an already selected item.
     *
     * @param selectedIndex the index of the selected item
     * @param callback      the {@link OnDoneCallback} to trigger when the client finishes handling
     *                      the event
     */
    // This mirrors the AIDL class and is not supported to support an executor as an input.
    @SuppressLint("ExecutorRegistration")
    void sendSelected(int selectedIndex, @NonNull OnDoneCallback callback);
}