1 /* 2 * Copyright 2024 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 androidx.webkit; 18 19 import org.jspecify.annotations.NonNull; 20 21 /** 22 * Callback interface for the prerender operation. 23 */ 24 @WebViewCompat.ExperimentalUrlPrerender 25 public interface PrerenderOperationCallback { 26 /** 27 * Called when a prerendered page is activated (used for an actual navigation). 28 * Use this callback to perform any necessary actions when the prerendering completes and the 29 * page becomes active. 30 */ onPrerenderActivated()31 void onPrerenderActivated(); 32 33 /** 34 * Called when the prerender operation fails. 35 * 36 * @param exception The exception indicating the cause of the failure. 37 */ onError(@onNull PrerenderException exception)38 void onError(@NonNull PrerenderException exception); 39 40 } 41