1 /* 2 * Copyright (C) 2007 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.annotation.UnsupportedAppUsage; 21 22 /** 23 * An instance of this class is passed as a parameter in various {@link WebChromeClient} action 24 * notifications. The object is used as a handle onto the underlying JavaScript-originated request, 25 * and provides a means for the client to indicate whether this action should proceed. 26 */ 27 public class JsResult { 28 /** 29 * Callback interface, implemented by the WebViewProvider implementation to receive 30 * notifications when the JavaScript result represented by a JsResult instance has 31 * @hide Only for use by WebViewProvider implementations 32 */ 33 @SystemApi 34 public interface ResultReceiver { 35 public void onJsResultComplete(JsResult result); 36 } 37 // This is the caller of the prompt and is the object that is waiting. 38 @UnsupportedAppUsage 39 private final ResultReceiver mReceiver; 40 // This is a basic result of a confirm or prompt dialog. 41 private boolean mResult; 42 43 /** 44 * Handle the result if the user cancelled the dialog. 45 */ 46 public final void cancel() { 47 mResult = false; 48 wakeUp(); 49 } 50 51 /** 52 * Handle a confirmation response from the user. 53 */ 54 public final void confirm() { 55 mResult = true; 56 wakeUp(); 57 } 58 59 /** 60 * @hide Only for use by WebViewProvider implementations 61 */ 62 @SystemApi 63 public JsResult(ResultReceiver receiver) { 64 mReceiver = receiver; 65 } 66 67 /** 68 * @hide Only for use by WebViewProvider implementations 69 */ 70 @SystemApi 71 public final boolean getResult() { 72 return mResult; 73 } 74 75 /* Notify the caller that the JsResult has completed */ 76 private final void wakeUp() { 77 mReceiver.onJsResultComplete(this); 78 } 79 } 80
