/*
|
* Copyright (C) 2016 The Android Open Source Project
|
*
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
* you may not use this file except in compliance with the License.
|
* You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations under the License.
|
*/
|
|
package com.android.server.tv;
|
|
import android.os.Binder;
|
import android.os.IBinder;
|
|
import java.io.IOException;
|
|
import dalvik.system.CloseGuard;
|
|
/**
|
* Sends the input event to the linux driver.
|
*/
|
public final class UinputBridge {
|
private final CloseGuard mCloseGuard = CloseGuard.get();
|
private long mPtr;
|
private IBinder mToken = null;
|
|
private static native long nativeOpen(String name, String uniqueId, int width, int height,
|
int maxPointers);
|
private static native void nativeClose(long ptr);
|
private static native void nativeClear(long ptr);
|
private static native void nativeSendTimestamp(long ptr, long timestamp);
|
private static native void nativeSendKey(long ptr, int keyCode, boolean down);
|
private static native void nativeSendPointerDown(long ptr, int pointerId, int x, int y);
|
private static native void nativeSendPointerUp(long ptr, int pointerId);
|
private static native void nativeSendPointerSync(long ptr);
|
|
public UinputBridge(IBinder token, String name, int width, int height, int maxPointers)
|
throws IOException {
|
if (width < 1 || height < 1) {
|
throw new IllegalArgumentException("Touchpad must be at least 1x1.");
|
}
|
if (maxPointers < 1 || maxPointers > 32) {
|
throw new IllegalArgumentException("Touchpad must support between 1 and 32 pointers.");
|
}
|
if (token == null) {
|
throw new IllegalArgumentException("Token cannot be null");
|
}
|
mPtr = nativeOpen(name, token.toString(), width, height, maxPointers);
|
if (mPtr == 0) {
|
throw new IOException("Could not open uinput device " + name);
|
}
|
mToken = token;
|
mCloseGuard.open("close");
|
}
|
|
@Override
|
protected void finalize() throws Throwable {
|
try {
|
if (mCloseGuard != null) {
|
mCloseGuard.warnIfOpen();
|
}
|
close(mToken);
|
} finally {
|
mToken = null;
|
super.finalize();
|
}
|
}
|
|
public void close(IBinder token) {
|
if (isTokenValid(token)) {
|
if (mPtr != 0) {
|
clear(token);
|
nativeClose(mPtr);
|
|
mPtr = 0;
|
mCloseGuard.close();
|
}
|
}
|
}
|
|
public IBinder getToken() {
|
return mToken;
|
}
|
|
protected boolean isTokenValid(IBinder token) {
|
return mToken.equals(token);
|
}
|
|
public void sendTimestamp(IBinder token, long timestamp) {
|
if (isTokenValid(token)) {
|
nativeSendTimestamp(mPtr, timestamp);
|
}
|
}
|
|
public void sendKeyDown(IBinder token, int keyCode) {
|
if (isTokenValid(token)) {
|
nativeSendKey(mPtr, keyCode, true /*down*/);
|
}
|
}
|
|
public void sendKeyUp(IBinder token, int keyCode) {
|
if (isTokenValid(token)) {
|
nativeSendKey(mPtr, keyCode, false /*down*/);
|
}
|
}
|
|
public void sendPointerDown(IBinder token, int pointerId, int x, int y) {
|
if (isTokenValid(token)) {
|
nativeSendPointerDown(mPtr, pointerId, x, y);
|
}
|
}
|
|
public void sendPointerUp(IBinder token, int pointerId) {
|
if (isTokenValid(token)) {
|
nativeSendPointerUp(mPtr, pointerId);
|
}
|
}
|
|
public void sendPointerSync(IBinder token) {
|
if (isTokenValid(token)) {
|
nativeSendPointerSync(mPtr);
|
}
|
|
}
|
|
public void clear(IBinder token) {
|
if (isTokenValid(token)) {
|
nativeClear(mPtr);
|
}
|
}
|
|
}
|
