Add settings VR listener service.
Bug: 22855417 Bug: 26724891 - Adds a settings panel allowing users to toggle the enabled/disabled state of each VrListenerService component installed. - If disabled, a VrListenerService will not be bound from the framework, even when requested by a VR application. Change-Id: I606eb712c011d160b9fbdd3c0e8fd744c653ef07
This commit is contained in:
Ruben Brunk
227
src/com/android/settings/utils/ServiceListing.java
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227
src/com/android/settings/utils/ServiceListing.java
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/*
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* Copyright (C) 2015 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.utils;
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import android.app.ActivityManager;
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import android.content.BroadcastReceiver;
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import android.content.ComponentName;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.content.pm.ServiceInfo;
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import android.database.ContentObserver;
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import android.net.Uri;
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import android.os.Handler;
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import android.provider.Settings;
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import android.util.Slog;
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import com.android.settings.utils.ManagedServiceSettings.Config;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.List;
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public class ServiceListing {
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private final ContentResolver mContentResolver;
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private final Context mContext;
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private final Config mConfig;
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private final HashSet<ComponentName> mEnabledServices = new HashSet<ComponentName>();
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private final List<ServiceInfo> mServices = new ArrayList<ServiceInfo>();
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private final List<Callback> mCallbacks = new ArrayList<Callback>();
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private final List<ServiceInfo> mApprovedServices = new ArrayList<ServiceInfo>();
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private boolean mListening;
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public ServiceListing(Context context, Config config) {
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mContext = context;
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mConfig = config;
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mContentResolver = context.getContentResolver();
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}
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public void addCallback(Callback callback) {
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mCallbacks.add(callback);
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}
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public void removeCallback(Callback callback) {
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mCallbacks.remove(callback);
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}
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public void setListening(boolean listening) {
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if (mListening == listening) return;
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mListening = listening;
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if (mListening) {
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// listen for package changes
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IntentFilter filter = new IntentFilter();
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filter.addAction(Intent.ACTION_PACKAGE_ADDED);
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filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
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filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
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filter.addAction(Intent.ACTION_PACKAGE_REPLACED);
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filter.addDataScheme("package");
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mContext.registerReceiver(mPackageReceiver, filter);
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mContentResolver.registerContentObserver(Settings.Secure.getUriFor(mConfig.setting),
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false, mSettingsObserver);
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} else {
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mContext.unregisterReceiver(mPackageReceiver);
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mContentResolver.unregisterContentObserver(mSettingsObserver);
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}
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}
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public static int getEnabledServicesCount(Config config, Context context) {
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final String flat = Settings.Secure.getString(context.getContentResolver(), config.setting);
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if (flat == null || "".equals(flat)) return 0;
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final String[] components = flat.split(":");
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return components.length;
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}
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public static int getServicesCount(Config c, PackageManager pm) {
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return getServices(c, null, pm);
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}
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public ServiceInfo findService(Context context, Config config, final ComponentName cn) {
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final ServiceListing listing = new ServiceListing(context, config);
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for (ServiceInfo service : mApprovedServices) {
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final ComponentName serviceCN = new ComponentName(service.packageName, service.name);
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if (serviceCN.equals(cn)) {
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return service;
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}
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}
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return null;
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}
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private static int getServices(Config c, List<ServiceInfo> list, PackageManager pm) {
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int services = 0;
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if (list != null) {
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list.clear();
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}
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final int user = ActivityManager.getCurrentUser();
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List<ResolveInfo> installedServices = pm.queryIntentServicesAsUser(
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new Intent(c.intentAction),
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PackageManager.GET_SERVICES | PackageManager.GET_META_DATA,
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user);
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for (int i = 0, count = installedServices.size(); i < count; i++) {
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ResolveInfo resolveInfo = installedServices.get(i);
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ServiceInfo info = resolveInfo.serviceInfo;
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if (!c.permission.equals(info.permission)) {
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Slog.w(c.tag, "Skipping " + c.noun + " service "
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+ info.packageName + "/" + info.name
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+ ": it does not require the permission "
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+ c.permission);
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continue;
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}
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if (list != null) {
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list.add(info);
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}
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services++;
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}
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return services;
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}
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private void saveEnabledServices() {
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StringBuilder sb = null;
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for (ComponentName cn : mEnabledServices) {
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if (sb == null) {
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sb = new StringBuilder();
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} else {
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sb.append(':');
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}
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sb.append(cn.flattenToString());
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}
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Settings.Secure.putString(mContentResolver, mConfig.setting,
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sb != null ? sb.toString() : "");
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}
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private void loadEnabledServices() {
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mEnabledServices.clear();
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final String flat = Settings.Secure.getString(mContentResolver, mConfig.setting);
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if (flat != null && !"".equals(flat)) {
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final String[] names = flat.split(":");
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for (int i = 0; i < names.length; i++) {
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final ComponentName cn = ComponentName.unflattenFromString(names[i]);
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if (cn != null) {
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mEnabledServices.add(cn);
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}
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}
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}
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}
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public List<ServiceInfo> reload() {
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loadEnabledServices();
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getServices(mConfig, mServices, mContext.getPackageManager());
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for (Callback callback : mCallbacks) {
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callback.onServicesReloaded(mServices);
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}
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return mServices;
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}
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public void reloadApprovedServices() {
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mApprovedServices.clear();
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final String flat = Settings.Secure.getString(mContentResolver, mConfig.setting);
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if (flat != null && !"".equals(flat)) {
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final List<String> names = Arrays.asList(flat.split(":"));
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List<ServiceInfo> services = new ArrayList<>();
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getServices(mConfig, services, mContext.getPackageManager());
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for (ServiceInfo service : services) {
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final ComponentName componentName = service.getComponentName();
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String flatCn = service.getComponentName().flattenToString();
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if (names.contains(flatCn) || names.contains(componentName.getPackageName())) {
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mApprovedServices.add(service);
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}
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}
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for (Callback callback : mCallbacks) {
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callback.onServicesReloaded(mApprovedServices);
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}
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}
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}
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public boolean isEnabled(ComponentName cn) {
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return mEnabledServices.contains(cn);
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}
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public void setEnabled(ComponentName cn, boolean enabled) {
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if (enabled) {
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mEnabledServices.add(cn);
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} else {
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mEnabledServices.remove(cn);
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}
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saveEnabledServices();
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}
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private final ContentObserver mSettingsObserver = new ContentObserver(new Handler()) {
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@Override
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public void onChange(boolean selfChange, Uri uri) {
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reload();
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}
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};
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private final BroadcastReceiver mPackageReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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reload();
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}
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};
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public interface Callback {
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void onServicesReloaded(List<ServiceInfo> services);
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}
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}
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