src/com/android/launcher3/util/DaggerSingletonObject.java

/*
 * Copyright (C) 2024 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.launcher3.util;

import android.content.Context;

import com.android.launcher3.LauncherApplication;
import com.android.launcher3.dagger.LauncherAppComponent;

import java.util.function.Function;

/**
 * A class to provide DaggerSingleton objects in a traditional way for
 * {@link MainThreadInitializedObject}.
 * We should delete this class at the end and use @Inject to get dagger provided singletons.
 */

public class DaggerSingletonObject<T extends SafeCloseable> {
    private final Function<LauncherAppComponent, T> mFunction;

    public DaggerSingletonObject(Function<LauncherAppComponent, T> function) {
        mFunction = function;
    }

    public T get(Context context) {
        LauncherAppComponent component =
                ((LauncherApplication) context.getApplicationContext()).getAppComponent();
        return mFunction.apply(component);
    }
}