1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.webkit; 18 19 import android.annotation.SystemApi; 20 import android.compat.annotation.UnsupportedAppUsage; 21 import android.os.RemoteException; 22 23 /** 24 * @hide 25 */ 26 @SystemApi 27 public final class WebViewUpdateService { 28 29 @UnsupportedAppUsage WebViewUpdateService()30 private WebViewUpdateService () {} 31 32 /** 33 * Fetch all packages that could potentially implement WebView. 34 */ getAllWebViewPackages()35 public static WebViewProviderInfo[] getAllWebViewPackages() { 36 IWebViewUpdateService service = getUpdateService(); 37 if (service == null) { 38 return new WebViewProviderInfo[0]; 39 } 40 try { 41 return service.getAllWebViewPackages(); 42 } catch (RemoteException e) { 43 throw e.rethrowFromSystemServer(); 44 } 45 } 46 47 /** 48 * Fetch all packages that could potentially implement WebView and are currently valid. 49 */ getValidWebViewPackages()50 public static WebViewProviderInfo[] getValidWebViewPackages() { 51 IWebViewUpdateService service = getUpdateService(); 52 if (service == null) { 53 return new WebViewProviderInfo[0]; 54 } 55 try { 56 return service.getValidWebViewPackages(); 57 } catch (RemoteException e) { 58 throw e.rethrowFromSystemServer(); 59 } 60 } 61 62 /** 63 * Used by DevelopmentSetting to get the name of the WebView provider currently in use. 64 */ getCurrentWebViewPackageName()65 public static String getCurrentWebViewPackageName() { 66 IWebViewUpdateService service = getUpdateService(); 67 if (service == null) { 68 return null; 69 } 70 try { 71 return service.getCurrentWebViewPackageName(); 72 } catch (RemoteException e) { 73 throw e.rethrowFromSystemServer(); 74 } 75 } 76 getUpdateService()77 private static IWebViewUpdateService getUpdateService() { 78 return WebViewFactory.getUpdateService(); 79 } 80 } 81