/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.settings.applications;
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import android.content.Context;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.icu.text.ListFormatter;
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import android.util.ArraySet;
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import androidx.annotation.VisibleForTesting;
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import androidx.preference.Preference;
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import com.android.settings.R;
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import com.android.settings.core.BasePreferenceController;
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import com.android.settingslib.applications.PermissionsSummaryHelper;
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import java.util.List;
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import java.util.Set;
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import java.util.stream.Collectors;
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public class AppPermissionsPreferenceController extends BasePreferenceController {
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private static final String TAG = "AppPermissionPrefCtrl";
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private static int NUM_PACKAGE_TO_CHECK = 3;
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@VisibleForTesting
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static int NUM_PERMISSIONS_TO_SHOW = 3;
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private final PackageManager mPackageManager;
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private final Set<CharSequence> mPermissionGroups;
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private final PermissionsSummaryHelper.PermissionsResultCallback mPermissionsCallback =
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new PermissionsSummaryHelper.PermissionsResultCallback() {
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@Override
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public void onPermissionSummaryResult(int standardGrantedPermissionCount,
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int requestedPermissionCount, int additionalGrantedPermissionCount,
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List<CharSequence> grantedGroupLabels) {
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updateSummary(grantedGroupLabels);
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}
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};
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@VisibleForTesting
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int mNumPackageChecked;
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private Preference mPreference;
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public AppPermissionsPreferenceController(Context context, String preferenceKey) {
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super(context, preferenceKey);
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mPackageManager = context.getPackageManager();
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mPermissionGroups = new ArraySet<>();
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}
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@Override
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public int getAvailabilityStatus() {
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return AVAILABLE;
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}
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@Override
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public void updateState(Preference preference) {
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mPreference = preference;
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mNumPackageChecked = 0;
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queryPermissionSummary();
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}
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@VisibleForTesting
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void queryPermissionSummary() {
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final List<PackageInfo> installedPackages =
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mPackageManager.getInstalledPackages(PackageManager.GET_PERMISSIONS);
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// Here we only get the first three apps and check their permissions.
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final List<PackageInfo> packagesWithPermission = installedPackages.stream()
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.filter(pInfo -> pInfo.permissions != null)
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.limit(NUM_PACKAGE_TO_CHECK)
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.collect(Collectors.toList());
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for (PackageInfo installedPackage : packagesWithPermission) {
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PermissionsSummaryHelper.getPermissionSummary(mContext,
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installedPackage.packageName, mPermissionsCallback);
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}
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}
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@VisibleForTesting
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void updateSummary(List<CharSequence> grantedGroupLabels) {
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mPermissionGroups.addAll(grantedGroupLabels);
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mNumPackageChecked++;
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if (mNumPackageChecked < NUM_PACKAGE_TO_CHECK) {
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return;
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}
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final List<CharSequence> permissionsToShow = mPermissionGroups.stream()
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.limit(NUM_PERMISSIONS_TO_SHOW)
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.collect(Collectors.toList());
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final CharSequence summary = !permissionsToShow.isEmpty()
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? mContext.getString(R.string.app_permissions_summary,
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ListFormatter.getInstance().format(permissionsToShow).toLowerCase())
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: null;
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mPreference.setSummary(summary);
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}
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}
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