1 /* 2 * Copyright (C) 2020 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.view; 18 19 import android.graphics.Rect; 20 import android.os.ICancellationSignal; 21 import android.view.IScrollCaptureCallbacks; 22 import android.view.Surface; 23 24 25 /** 26 * A remote connection to a scroll capture target. 27 * 28 * {@hide} 29 */ 30 interface IScrollCaptureConnection { 31 32 /** 33 * Informs the target that it has been selected for scroll capture. 34 * 35 * @param surface used to shuttle image buffers between processes 36 * @param callbacks a return channel for requests 37 * 38 * @return a cancallation signal which is used cancel the start request 39 */ startCapture(in Surface surface, IScrollCaptureCallbacks callbacks)40 ICancellationSignal startCapture(in Surface surface, IScrollCaptureCallbacks callbacks); 41 42 /** 43 * Request the target capture an image within the provided rectangle. 44 * 45 * @param surface a return channel for image buffers 46 * @param signal a cancallation signal which can interrupt the request 47 * 48 * @return a cancallation signal which is used cancel the request 49 */ requestImage(in Rect captureArea)50 ICancellationSignal requestImage(in Rect captureArea); 51 52 /** 53 * Inform the target that capture has ended. 54 * 55 * @return a cancallation signal which is used cancel the request 56 */ endCapture()57 ICancellationSignal endCapture(); 58 59 /** 60 * Closes the connection. 61 */ close()62 oneway void close(); 63 } 64