/*
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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");
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* you may not use this file except in compliance with the License.
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* 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.webview;
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import static android.provider.Settings.ACTION_WEBVIEW_SETTINGS;
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import android.app.Activity;
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import android.app.settings.SettingsEnums;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageItemInfo;
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import android.content.pm.PackageManager;
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import android.text.TextUtils;
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import android.webkit.UserPackage;
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import androidx.annotation.VisibleForTesting;
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import com.android.settings.R;
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import com.android.settings.applications.defaultapps.DefaultAppPickerFragment;
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import com.android.settingslib.applications.DefaultAppInfo;
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import java.util.ArrayList;
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import java.util.List;
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public class WebViewAppPicker extends DefaultAppPickerFragment {
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private WebViewUpdateServiceWrapper mWebViewUpdateServiceWrapper;
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private WebViewUpdateServiceWrapper getWebViewUpdateServiceWrapper() {
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if (mWebViewUpdateServiceWrapper == null) {
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setWebViewUpdateServiceWrapper(createDefaultWebViewUpdateServiceWrapper());
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}
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return mWebViewUpdateServiceWrapper;
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}
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@Override
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public void onAttach(Context context) {
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super.onAttach(context);
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if (!mUserManager.isAdminUser()) {
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getActivity().finish();
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}
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}
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@Override
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protected int getPreferenceScreenResId() {
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return R.xml.webview_app_settings;
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}
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@Override
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protected List<DefaultAppInfo> getCandidates() {
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final List<DefaultAppInfo> packageInfoList = new ArrayList<DefaultAppInfo>();
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final Context context = getContext();
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final WebViewUpdateServiceWrapper webViewUpdateService = getWebViewUpdateServiceWrapper();
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final List<ApplicationInfo> pkgs =
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webViewUpdateService.getValidWebViewApplicationInfos(context);
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for (ApplicationInfo ai : pkgs) {
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packageInfoList.add(createDefaultAppInfo(context, mPm, ai,
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getDisabledReason(webViewUpdateService, context, ai.packageName)));
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}
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return packageInfoList;
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}
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@Override
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protected String getDefaultKey() {
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PackageInfo currentPackage = getWebViewUpdateServiceWrapper().getCurrentWebViewPackage();
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return currentPackage == null ? null : currentPackage.packageName;
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}
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protected boolean setDefaultKey(String key) {
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boolean success = getWebViewUpdateServiceWrapper().setWebViewProvider(key);
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return success;
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}
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@Override
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protected void onSelectionPerformed(boolean success) {
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if (success) {
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Activity activity = getActivity();
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Intent intent = activity == null ? null : activity.getIntent();
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if (intent != null && ACTION_WEBVIEW_SETTINGS.equals(intent.getAction())) {
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// If this was started through ACTION_WEBVIEW_SETTINGS then return once we have
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// chosen a new package.
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getActivity().finish();
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}
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} else {
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getWebViewUpdateServiceWrapper().showInvalidChoiceToast(getActivity());
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updateCandidates();
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}
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}
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private WebViewUpdateServiceWrapper createDefaultWebViewUpdateServiceWrapper() {
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return new WebViewUpdateServiceWrapper();
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}
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@VisibleForTesting
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void setWebViewUpdateServiceWrapper(WebViewUpdateServiceWrapper wvusWrapper) {
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mWebViewUpdateServiceWrapper = wvusWrapper;
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}
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@Override
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public int getMetricsCategory() {
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return SettingsEnums.WEBVIEW_IMPLEMENTATION;
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}
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private static class WebViewAppInfo extends DefaultAppInfo {
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public WebViewAppInfo(Context context, PackageManager pm, int userId,
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PackageItemInfo packageItemInfo, String summary, boolean enabled) {
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super(context, pm, userId, packageItemInfo, summary, enabled);
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}
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@Override
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public CharSequence loadLabel() {
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String versionName = "";
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try {
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versionName = mPm.getPackageInfo(packageItemInfo.packageName, 0).versionName;
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} catch (PackageManager.NameNotFoundException e) {
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}
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return String.format("%s %s", super.loadLabel(), versionName);
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}
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}
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@VisibleForTesting
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DefaultAppInfo createDefaultAppInfo(Context context, PackageManager pm,
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PackageItemInfo packageItemInfo, String disabledReason) {
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return new WebViewAppInfo(context, pm, mUserId, packageItemInfo, disabledReason,
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TextUtils.isEmpty(disabledReason) /* enabled */);
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}
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/**
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* Returns the reason why a package cannot be used as WebView implementation.
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* This is either because of it being disabled, uninstalled, or hidden for any user.
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*/
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@VisibleForTesting
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String getDisabledReason(WebViewUpdateServiceWrapper webviewUpdateServiceWrapper,
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Context context, String packageName) {
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List<UserPackage> userPackages =
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webviewUpdateServiceWrapper.getPackageInfosAllUsers(context, packageName);
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for (UserPackage userPackage : userPackages) {
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if (!userPackage.isInstalledPackage()) {
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// Package uninstalled/hidden
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return context.getString(
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R.string.webview_uninstalled_for_user, userPackage.getUserInfo().name);
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} else if (!userPackage.isEnabledPackage()) {
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// Package disabled
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return context.getString(
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R.string.webview_disabled_for_user, userPackage.getUserInfo().name);
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}
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}
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return null;
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}
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}
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