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
17package android.webkit;
18
19import android.annotation.SystemApi;
20import android.os.RemoteException;
21
22/**
23 * @hide
24 */
25@SystemApi
26public final class WebViewUpdateService {
27
28    private WebViewUpdateService () {}
29
30    /**
31     * Fetch all packages that could potentially implement WebView.
32     */
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     */
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     */
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
75    private static IWebViewUpdateService getUpdateService() {
76        return WebViewFactory.getUpdateService();
77    }
78}
79