adservices/apk/java/com/android/adservices/ui/settings/fragments/AdServicesSettingsMainFragment.java

/*
 * Copyright (C) 2022 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.adservices.ui.settings.fragments;

import android.app.ActionBar;
import android.os.Bundle;

import androidx.lifecycle.ViewModelProvider;
import androidx.preference.PreferenceFragmentCompat;
import androidx.preference.SwitchPreference;

import com.android.adservices.api.R;
import com.android.adservices.ui.settings.ActionDelegate;
import com.android.adservices.ui.settings.AdServicesSettingsActivity;
import com.android.adservices.ui.settings.viewmodels.MainViewModel;
import com.android.settingslib.widget.ActionBarShadowController;

import java.util.Objects;

/**
 * Fragment for the main view of the AdServices Settings App.
 */
public class AdServicesSettingsMainFragment extends PreferenceFragmentCompat {

    public static final String ERROR_MESSAGE_VIEW_MODEL_EXCEPTION_WHILE_GET_CONSENT =
            "getConsent method failed. Will not change consent value in view model.";
    public static final String PRIVACY_SANDBOX_BETA_SWITCH_KEY = "privacy_sandbox_beta_switch";
    public static final String TOPICS_PREFERENCE_BUTTON_KEY = "topics_preference";

    protected boolean mUseShadowController = true;

    @Override
    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
        setPreferencesFromResource(R.xml.main_preferences, rootKey);

        setupViewModel();
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        initActionBar();
        initActionListeners();
    }

    /**
     * Attaching {@link ActionBarShadowController} from SettingsLib to have the same action bar
     * style as the Android Settings App.
     */
    private void initActionBar() {
        if (getListView() != null) {
            ActionBar ab = requireActivity().getActionBar();

            if (ab != null) {
                ab.setDisplayHomeAsUpEnabled(true);
                ab.setTitle(R.string.settingsUI_privacy_sandbox_beta_title);
                ab.setElevation(0);
            }

            if (mUseShadowController) {
                ActionBarShadowController.attachToView(
                        getActivity(), getLifecycle(), getListView());
            }
        }
    }

    // initialize all action listeners
    private void initActionListeners() {
        ActionDelegate actionDelegate =
                ((AdServicesSettingsActivity) requireActivity()).getActionDelegate();
        actionDelegate.initMainFragment(this);
    }

    private void setupViewModel() {
        MainViewModel model = new ViewModelProvider(requireActivity()).get(MainViewModel.class);

        SwitchPreference switchPreference =
                Objects.requireNonNull(findPreference(PRIVACY_SANDBOX_BETA_SWITCH_KEY));
        model.getConsent().observe(this, switchPreference::setChecked);
    }
}