InputEvent.java revision c5ed5910c9ef066cec6a13bbb404ec57b1e92637
1/* 2 * Copyright (C) 2010 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.view; 18 19import android.os.Parcelable; 20 21/** 22 * Common base class for input events. 23 */ 24public abstract class InputEvent implements Parcelable { 25 protected int mDeviceId; 26 protected int mSource; 27 28 /*package*/ InputEvent() { 29 } 30 31 /** 32 * Gets the id for the device that this event came from. An id of 33 * zero indicates that the event didn't come from a physical device 34 * and maps to the default keymap. The other numbers are arbitrary and 35 * you shouldn't depend on the values. 36 * 37 * @return The device id. 38 * @see InputDevice#getDevice 39 */ 40 public final int getDeviceId() { 41 return mDeviceId; 42 } 43 44 /** 45 * Gets the source of the event. 46 * 47 * @return The event source or {@link InputDevice.SOURCE_UNKNOWN} if unknown. 48 * @see InputDevice#getSourceInfo 49 */ 50 public final int getSource() { 51 return mSource; 52 } 53 54 /** 55 * Modifies the source of the event. 56 * @param source The source. 57 * 58 * @hide 59 */ 60 public final void setSource(int source) { 61 mSource = source; 62 } 63} 64