Tim Volodine | 28c8356 | 2016-01-20 19:23:03 +0000 | [diff] [blame] | 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.NonNull; |
| 20 | import android.annotation.Nullable; |
| 21 | |
| 22 | /** |
| 23 | * Manages Service Workers used by WebView. |
Tim Volodine | b90f538 | 2016-04-29 12:44:41 +0100 | [diff] [blame^] | 24 | * |
| 25 | * <p>Example usage: |
| 26 | * <pre class="prettyprint"> |
| 27 | * ServiceWorkerController swController = ServiceWorkerController.getInstance(); |
| 28 | * swController.setServiceWorkerClient(new ServiceWorkerClient() { |
| 29 | * {@literal @}Override |
| 30 | * public WebResourceResponse shouldInterceptRequest(WebResourceRequest request) { |
| 31 | * // Capture request here and generate response or allow pass-through |
| 32 | * // by returning null. |
| 33 | * return null; |
| 34 | * } |
| 35 | * }); |
| 36 | * </pre></p> |
Tim Volodine | 28c8356 | 2016-01-20 19:23:03 +0000 | [diff] [blame] | 37 | */ |
| 38 | public abstract class ServiceWorkerController { |
| 39 | |
| 40 | /** |
| 41 | * Returns the default ServiceWorkerController instance. At present there is |
| 42 | * only one ServiceWorkerController instance for all WebView instances, |
| 43 | * however this restriction may be relaxed in the future. |
| 44 | * |
Tim Volodine | b90f538 | 2016-04-29 12:44:41 +0100 | [diff] [blame^] | 45 | * @return the default ServiceWorkerController instance |
Tim Volodine | 28c8356 | 2016-01-20 19:23:03 +0000 | [diff] [blame] | 46 | */ |
| 47 | @NonNull |
| 48 | public static ServiceWorkerController getInstance() { |
| 49 | return WebViewFactory.getProvider().getServiceWorkerController(); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Gets the settings for all service workers. |
| 54 | * |
Tim Volodine | b90f538 | 2016-04-29 12:44:41 +0100 | [diff] [blame^] | 55 | * @return the current ServiceWorkerWebSettings |
Tim Volodine | 28c8356 | 2016-01-20 19:23:03 +0000 | [diff] [blame] | 56 | */ |
| 57 | @NonNull |
| 58 | public abstract ServiceWorkerWebSettings getServiceWorkerWebSettings(); |
| 59 | |
| 60 | /** |
| 61 | * Sets the client to capture service worker related callbacks. |
Tim Volodine | b90f538 | 2016-04-29 12:44:41 +0100 | [diff] [blame^] | 62 | * |
| 63 | * A {@link ServiceWorkerClient} should be set before any service workers are |
| 64 | * active, e.g. a safe place is before any WebView instances are created or |
| 65 | * pages loaded. |
Tim Volodine | 28c8356 | 2016-01-20 19:23:03 +0000 | [diff] [blame] | 66 | */ |
| 67 | public abstract void setServiceWorkerClient(@Nullable ServiceWorkerClient client); |
| 68 | } |
| 69 | |