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.os.RemoteException; 21 22 /** 23 * @hide 24 */ 25 @SystemApi 26 public final class WebViewUpdateService { 27 WebViewUpdateService()28 private WebViewUpdateService () {} 29 30 /** 31 * Fetch all packages that could potentially implement WebView. 32 */ getAllWebViewPackages()33 public static WebViewProviderInfo[] getAllWebViewPackages() { 34 IWebViewUpdateService service = getUpdateService(); 35 if (service == null) { 36 return new WebViewProviderInfo[0]; 37 } 38 try { 39 return service.getAllWebViewPackages(); 40 } catch (RemoteException e) { 41 throw e.rethrowFromSystemServer(); 42 } 43 } 44 45 /** 46 * Fetch all packages that could potentially implement WebView and are currently valid. 47 */ getValidWebViewPackages()48 public static WebViewProviderInfo[] getValidWebViewPackages() { 49 IWebViewUpdateService service = getUpdateService(); 50 if (service == null) { 51 return new WebViewProviderInfo[0]; 52 } 53 try { 54 return service.getValidWebViewPackages(); 55 } catch (RemoteException e) { 56 throw e.rethrowFromSystemServer(); 57 } 58 } 59 60 /** 61 * Used by DevelopmentSetting to get the name of the WebView provider currently in use. 62 */ getCurrentWebViewPackageName()63 public static String getCurrentWebViewPackageName() { 64 IWebViewUpdateService service = getUpdateService(); 65 if (service == null) { 66 return null; 67 } 68 try { 69 return service.getCurrentWebViewPackageName(); 70 } catch (RemoteException e) { 71 throw e.rethrowFromSystemServer(); 72 } 73 } 74 getUpdateService()75 private static IWebViewUpdateService getUpdateService() { 76 return WebViewFactory.getUpdateService(); 77 } 78 } 79