1/*
2 * Copyright (C) 2014 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.content.pm.PackageInfo;
20import android.webkit.WebViewProviderInfo;
21import android.webkit.WebViewProviderResponse;
22
23/**
24 * Private service to wait for the updatable WebView to be ready for use.
25 * @hide
26 */
27interface IWebViewUpdateService {
28
29    /**
30     * Used by the relro file creator to notify the service that it's done.
31     */
32    void notifyRelroCreationCompleted();
33
34    /**
35     * Used by WebViewFactory to block loading of WebView code until
36     * preparations are complete. Returns the package used as WebView provider.
37     */
38    WebViewProviderResponse waitForAndGetProvider();
39
40    /**
41     * DevelopmentSettings uses this to notify WebViewUpdateService that a new provider has been
42     * selected by the user. Returns the provider we end up switching to, this could be different to
43     * the one passed as argument to this method since the Dev Setting calling this method could be
44     * stale. I.e. the Dev setting could be letting the user choose uninstalled/disabled packages,
45     * it would then try to update the provider to such a package while in reality the update
46     * service would switch to another one.
47     */
48    String changeProviderAndSetting(String newProvider);
49
50    /**
51     * DevelopmentSettings uses this to get the current available WebView
52     * providers (to display as choices to the user).
53     */
54    WebViewProviderInfo[] getValidWebViewPackages();
55
56    /**
57     * Fetch all packages that could potentially implement WebView.
58     */
59    WebViewProviderInfo[] getAllWebViewPackages();
60
61    /**
62     * Used by DevelopmentSetting to get the name of the WebView provider currently in use.
63     */
64    String getCurrentWebViewPackageName();
65
66    /**
67     * Used by Settings to determine whether a certain package can be enabled/disabled by the user -
68     * the package should not be modifiable in this way if it is a fallback package.
69     */
70    boolean isFallbackPackage(String packageName);
71
72    /**
73     * Enable or disable the WebView package fallback mechanism.
74     */
75    void enableFallbackLogic(boolean enable);
76}
77