src/com/android/car/settings/applications/specialaccess/DirectoryAccessDetailsFragment.java

/*
 * Copyright 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.car.settings.applications.specialaccess;

import android.car.userlib.CarUserManagerHelper;
import android.content.Context;
import android.os.Bundle;

import androidx.annotation.XmlRes;

import com.android.car.settings.R;
import com.android.car.settings.applications.ApplicationPreferenceController;
import com.android.car.settings.common.SettingsFragment;
import com.android.settingslib.applications.ApplicationsState;

import java.util.ArrayList;

/** Displays directory access permissions for a specific package. */
public class DirectoryAccessDetailsFragment extends SettingsFragment {

    public static final String ARG_PACKAGE_NAME = "package";

    private CarUserManagerHelper mCarUserManagerHelper;
    private String mPackageName;
    private ApplicationsState mAppState;
    private ApplicationsState.Session mSession;
    private ApplicationsState.AppEntry mAppEntry;

    /** Creates an instance of this fragment, passing {@code packageName} as an argument. */
    public static DirectoryAccessDetailsFragment getInstance(String packageName) {
        DirectoryAccessDetailsFragment directoryAccessDetailsFragment =
                new DirectoryAccessDetailsFragment();
        Bundle bundle = new Bundle();
        bundle.putString(ARG_PACKAGE_NAME, packageName);
        directoryAccessDetailsFragment.setArguments(bundle);
        return directoryAccessDetailsFragment;
    }

    @Override
    @XmlRes
    protected int getPreferenceScreenResId() {
        return R.xml.directory_access_details_fragment;
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        mCarUserManagerHelper = new CarUserManagerHelper(context);

        mPackageName = getArguments().getString(ARG_PACKAGE_NAME);

        mAppState = ApplicationsState.getInstance(requireActivity().getApplication());
        mSession = mAppState.newSession(mApplicationStateCallbacks, getLifecycle());

        retrieveAppEntry();

        use(ApplicationPreferenceController.class,
                R.string.pk_directory_access_details_app).setAppEntry(mAppEntry).setAppState(
                mAppState);
        use(DirectoryAccessDetailsPreferenceController.class,
                R.string.pk_directory_access_details).setPackage(mPackageName);
    }

    @Override
    public void onStart() {
        super.onStart();
        // Resume the session earlier than the lifecycle so that cached information is updated
        // even if settings is not resumed (for example in multi-display).
        mSession.onResume();
        refresh();
    }

    @Override
    public void onStop() {
        super.onStop();
        // Since we resume early in onStart, make sure we clean up even if we don't receive onPause.
        mSession.onPause();
    }

    private void refresh() {
        retrieveAppEntry();
        if (mAppEntry == null) {
            goBack();
        }
    }

    private void retrieveAppEntry() {
        mAppEntry = mAppState.getEntry(mPackageName,
                mCarUserManagerHelper.getCurrentProcessUserId());
    }

    private final ApplicationsState.Callbacks mApplicationStateCallbacks =
            new ApplicationsState.Callbacks() {
                @Override
                public void onRunningStateChanged(boolean running) {
                }

                @Override
                public void onPackageListChanged() {
                    refresh();
                }

                @Override
                public void onRebuildComplete(ArrayList<ApplicationsState.AppEntry> apps) {
                }

                @Override
                public void onPackageIconChanged() {
                }

                @Override
                public void onPackageSizeChanged(String packageName) {
                }

                @Override
                public void onAllSizesComputed() {
                }

                @Override
                public void onLauncherInfoChanged() {
                }

                @Override
                public void onLoadEntriesCompleted() {
                }
            };
}