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/*
* Copyright (C) 2020 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 android.hardware.input;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.os.Binder;
import android.os.CombinedVibration;
import android.os.NullVibrator;
import android.os.VibrationAttributes;
import android.os.Vibrator;
import android.os.VibratorManager;
import android.util.SparseArray;
import android.view.InputDevice;
import com.android.internal.annotations.GuardedBy;
/**
* Vibrator manager implementation that communicates with the input device vibrators.
*
* @hide
*/
public class InputDeviceVibratorManager extends VibratorManager
implements InputManager.InputDeviceListener {
private static final String TAG = "InputDeviceVibratorManager";
private static final boolean DEBUG = false;
private final Binder mToken;
private final InputManager mInputManager;
// The input device Id.
private final int mDeviceId;
// Vibrator map from Vibrator Id to Vibrator
@GuardedBy("mVibrators")
private final SparseArray<Vibrator> mVibrators = new SparseArray<>();
public InputDeviceVibratorManager(InputManager inputManager, int deviceId) {
mInputManager = inputManager;
mDeviceId = deviceId;
mToken = new Binder();
initializeVibrators();
}
private void initializeVibrators() {
synchronized (mVibrators) {
mVibrators.clear();
InputDevice inputDevice = InputDevice.getDevice(mDeviceId);
final int[] vibratorIds =
mInputManager.getVibratorIds(mDeviceId);
for (int i = 0; i < vibratorIds.length; i++) {
mVibrators.put(vibratorIds[i],
new InputDeviceVibrator(mInputManager, mDeviceId, vibratorIds[i]));
}
}
}
@Override
public void onInputDeviceAdded(int deviceId) {
}
@Override
public void onInputDeviceRemoved(int deviceId) {
synchronized (mVibrators) {
if (deviceId == mDeviceId) {
mVibrators.clear();
}
}
}
@Override
public void onInputDeviceChanged(int deviceId) {
if (deviceId == mDeviceId) {
initializeVibrators();
}
}
@NonNull
@Override
public int[] getVibratorIds() {
synchronized (mVibrators) {
int[] vibratorIds = new int[mVibrators.size()];
for (int idx = 0; idx < mVibrators.size(); idx++) {
vibratorIds[idx++] = mVibrators.keyAt(idx);
}
return vibratorIds;
}
}
@NonNull
@Override
public Vibrator getVibrator(int vibratorId) {
synchronized (mVibrators) {
if (mVibrators.contains(vibratorId)) {
return mVibrators.get(vibratorId);
}
}
return NullVibrator.getInstance();
}
@NonNull
@Override
public Vibrator getDefaultVibrator() {
// Returns vibrator ID 0
synchronized (mVibrators) {
if (mVibrators.size() > 0) {
return mVibrators.valueAt(0);
}
}
return NullVibrator.getInstance();
}
@Override
public void vibrate(int uid, String opPkg, @NonNull CombinedVibration effect,
String reason, @Nullable VibrationAttributes attributes) {
mInputManager.vibrate(mDeviceId, effect, mToken);
}
@Override
public void cancel() {
mInputManager.cancelVibrate(mDeviceId, mToken);
}
@Override
public void cancel(int usageFilter) {
cancel();
}
}
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