/*
* Copyright (C) 2012 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 com.android.internal.util.ArrayUtils;
import android.annotation.SdkConstant;
import android.annotation.SdkConstant.SdkConstantType;
import android.content.Context;
import android.media.AudioAttributes;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.Vibrator;
import android.provider.Settings;
import android.provider.Settings.SettingNotFoundException;
import android.util.Log;
import android.util.SparseArray;
import android.view.InputDevice;
import android.view.InputEvent;
import java.util.ArrayList;
/**
* Provides information about input devices and available key layouts.
* <p>
* Get an instance of this class by calling
* {@link android.content.Context#getSystemService(java.lang.String)
* Context.getSystemService()} with the argument
* {@link android.content.Context#INPUT_SERVICE}.
* </p>
*/
public final class InputManager {
private static final String TAG = "InputManager";
private static final boolean DEBUG = false;
private static final int MSG_DEVICE_ADDED = 1;
private static final int MSG_DEVICE_REMOVED = 2;
private static final int MSG_DEVICE_CHANGED = 3;
private static InputManager sInstance;
private final IInputManager mIm;
// Guarded by mInputDevicesLock
private final Object mInputDevicesLock = new Object();
private SparseArray<InputDevice> mInputDevices;
private InputDevicesChangedListener mInputDevicesChangedListener;
private final ArrayList<InputDeviceListenerDelegate> mInputDeviceListeners =
new ArrayList<InputDeviceListenerDelegate>();
/**
* Broadcast Action: Query available keyboard layouts.
* <p>
* The input manager service locates available keyboard layouts
* by querying broadcast receivers that are registered for this action.
* An application can offer additional keyboard layouts to the user
* by declaring a suitable broadcast receiver in its manifest.
* </p><p>
* Here is an example broadcast receiver declaration that an application
* might include in its AndroidManifest.xml to advertise keyboard layouts.
* The meta-data specifies a resource that contains a description of each keyboard
* layout that is provided by the application.
* <pre><code>
* <receiver android:name=".InputDeviceReceiver"
* android:label="@string/keyboard_layouts_label">
* <intent-filter>
* <action android:name="android.hardware.input.action.QUERY_KEYBOARD_LAYOUTS" />
* </intent-filter>
* <meta-data android:name="android.hardware.input.metadata.KEYBOARD_LAYOUTS"
* android:resource="@xml/keyboard_layouts" />
* </receiver>
* </code></pre>
* </p><p>
* In the above example, the <code>@xml/keyboard_layouts</code> resource refers to
* an XML resource whose root element is <code><keyboard-layouts></code> that
* contains zero or more <code><keyboard-layout></code> elements.
* Each <code><keyboard-layout></code> element specifies the name, label, and location
* of a key character map for a particular keyboard layout. The label on the receiver
* is used to name the collection of keyboard layouts provided by this receiver in the
* keyboard layout settings.
* <pre></code>
* <?xml version="1.0" encoding="utf-8"?>
* <keyboard-layouts xmlns:android="http://schemas.android.com/apk/res/android">
* <keyboard-layout android:name="keyboard_layout_english_us"
* android:label="@string/keyboard_layout_english_us_label"
* android:keyboardLayout="@raw/keyboard_layout_english_us" />
* </keyboard-layouts>
* </p><p>
* The <code>android:name</code> attribute specifies an identifier by which
* the keyboard layout will be known in the package.
* The <code>android:label</code> attributes specifies a human-readable descriptive
* label to describe the keyboard layout in the user interface, such as "English (US)".
* The <code>android:keyboardLayout</code> attribute refers to a
* <a href="http://source.android.com/tech/input/key-character-map-files.html">
* key character map</a> resource that defines the keyboard layout.
* </p>
*/
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public static final String ACTION_QUERY_KEYBOARD_LAYOUTS =
"android.hardware.input.action.QUERY_KEYBOARD_LAYOUTS";
/**
* Metadata Key: Keyboard layout metadata associated with
* {@link #ACTION_QUERY_KEYBOARD_LAYOUTS}.
* <p>
* Specifies the resource id of a XML resource that describes the keyboard
* layouts that are provided by the application.
* </p>
*/
public static final String META_DATA_KEYBOARD_LAYOUTS =
"android.hardware.input.metadata.KEYBOARD_LAYOUTS";
/**
* Pointer Speed: The minimum (slowest) pointer speed (-7).
* @hide
*/
public static final int MIN_POINTER_SPEED = -7;
/**
* Pointer Speed: The maximum (fastest) pointer speed (7).
* @hide
*/
public static final int MAX_POINTER_SPEED = 7;
/**
* Pointer Speed: The default pointer speed (0).
* @hide
*/
public static final int DEFAULT_POINTER_SPEED = 0;
/**
* Input Event Injection Synchronization Mode: None.
* Never blocks. Injection is asynchronous and is assumed always to be successful.
* @hide
*/
public static final int INJECT_INPUT_EVENT_MODE_ASYNC = 0; // see InputDispatcher.h
/**
* Input Event Injection Synchronization Mode: Wait for result.
* Waits for previous events to be dispatched so that the input dispatcher can
* determine whether input event injection will be permitted based on the current
* input focus. Does not wait for the input event to finish being handled
* by the application.
* @hide
*/
public static final int INJECT_INPUT_EVENT_MODE_WAIT_FOR_RESULT = 1; // see InputDispatcher.h
/**
* Input Event Injection Synchronization Mode: Wait for finish.
* Waits for the event to be delivered to the application and handled.
* @hide
*/
public static final int INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH = 2; // see InputDispatcher.h
private InputManager(IInputManager im) {
mIm = im;
}
/**
* Gets an instance of the input manager.
*
* @return The input manager instance.
*
* @hide
*/
public static InputManager getInstance() {
synchronized (InputManager.class) {
if (sInstance == null) {
IBinder b = ServiceManager.getService(Context.INPUT_SERVICE);
sInstance = new InputManager(IInputManager.Stub.asInterface(b));
}
return sInstance;
}
}
/**
* Gets information about the input device with the specified id.
* @param id The device id.
* @return The input device or null if not found.
*/
public InputDevice getInputDevice(int id) {
synchronized (mInputDevicesLock) {
populateInputDevicesLocked();
int index = mInputDevices.indexOfKey(id);
if (index < 0) {
return null;
}
InputDevice inputDevice = mInputDevices.valueAt(index);
if (inputDevice == null) {
try {
inputDevice = mIm.getInputDevice(id);
} catch (RemoteException ex) {
throw new RuntimeException("Could not get input device information.", ex);
}
if (inputDevice != null) {
mInputDevices.setValueAt(index, inputDevice);
}
}
return inputDevice;
}
}
/**
* Gets information about the input device with the specified descriptor.
* @param descriptor The input device descriptor.
* @return The input device or null if not found.
* @hide
*/
public InputDevice getInputDeviceByDescriptor(String descriptor) {
if (descriptor == null) {
throw new IllegalArgumentException("descriptor must not be null.");
}
synchronized (mInputDevicesLock) {
populateInputDevicesLocked();
int numDevices = mInputDevices.size();
for (int i = 0; i < numDevices; i++) {
InputDevice inputDevice = mInputDevices.valueAt(i);
if (inputDevice == null) {
int id = mInputDevices.keyAt(i);
try {
inputDevice = mIm.getInputDevice(id);
} catch (RemoteException ex) {
// Ignore the problem for the purposes of this method.
}
if (inputDevice == null) {
continue;
}
mInputDevices.setValueAt(i, inputDevice);
}
if (descriptor.equals(inputDevice.getDescriptor())) {
return inputDevice;
}
}
return null;
}
}
/**
* Gets the ids of all input devices in the system.
* @return The input device ids.
*/
public int[] getInputDeviceIds() {
synchronized (mInputDevicesLock) {
populateInputDevicesLocked();
final int count = mInputDevices.size();
final int[] ids = new int[count];
for (int i = 0; i < count; i++) {
ids[i] = mInputDevices.keyAt(i);
}
return ids;
}
}
/**
* Registers an input device listener to receive notifications about when
* input devices are added, removed or changed.
*
* @param listener The listener to register.
* @param handler The handler on which the listener should be invoked, or null
* if the listener should be invoked on the calling thread's looper.
*
* @see #unregisterInputDeviceListener
*/
public void registerInputDeviceListener(InputDeviceListener listener, Handler handler) {
if (listener == null) {
throw new IllegalArgumentException("listener must not be null");
}
synchronized (mInputDevicesLock) {
int index = findInputDeviceListenerLocked(listener);
if (index < 0) {
mInputDeviceListeners.add(new InputDeviceListenerDelegate(listener, handler));
}
}
}
/**
* Unregisters an input device listener.
*
* @param listener The listener to unregister.
*
* @see #registerInputDeviceListener
*/
public void unregisterInputDeviceListener(InputDeviceListener listener) {
if (listener == null) {
throw new IllegalArgumentException("listener must not be null");
}
synchronized (mInputDevicesLock) {
int index = findInputDeviceListenerLocked(listener);
if (index >= 0) {
InputDeviceListenerDelegate d = mInputDeviceListeners.get(index);
d.removeCallbacksAndMessages(null);
mInputDeviceListeners.remove(index);
}
}
}
private int findInputDeviceListenerLocked(InputDeviceListener listener) {
final int numListeners = mInputDeviceListeners.size();
for (int i = 0; i < numListeners; i++) {
if (mInputDeviceListeners.get(i).mListener == listener) {
return i;
}
}
return -1;
}
/**
* Gets information about all supported keyboard layouts.
* <p>
* The input manager consults the built-in keyboard layouts as well
* as all keyboard layouts advertised by applications using a
* {@link #ACTION_QUERY_KEYBOARD_LAYOUTS} broadcast receiver.
* </p>
*
* @return A list of all supported keyboard layouts.
*
* @hide
*/
public KeyboardLayout[] getKeyboardLayouts() {
try {
return mIm.getKeyboardLayouts();
} catch (RemoteException ex) {
Log.w(TAG, "Could not get list of keyboard layout informations.", ex);
return new KeyboardLayout[0];
}
}
/**
* Gets the keyboard layout with the specified descriptor.
*
* @param keyboardLayoutDescriptor The keyboard layout descriptor, as returned by
* {@link KeyboardLayout#getDescriptor()}.
* @return The keyboard layout, or null if it could not be loaded.
*
* @hide
*/
public KeyboardLayout getKeyboardLayout(String keyboardLayoutDescriptor) {
if (keyboardLayoutDescriptor == null) {
throw new IllegalArgumentException("keyboardLayoutDescriptor must not be null");
}
try {
return mIm.getKeyboardLayout(keyboardLayoutDescriptor);
} catch (RemoteException ex) {
Log.w(TAG, "Could not get keyboard layout information.", ex);
return null;
}
}
/**
* Gets the current keyboard layout descriptor for the specified input
* device.
*
* @param identifier Identifier for the input device
* @return The keyboard layout descriptor, or null if no keyboard layout has
* been set.
* @hide
*/
public String getCurrentKeyboardLayoutForInputDevice(InputDeviceIdentifier identifier) {
try {
return mIm.getCurrentKeyboardLayoutForInputDevice(identifier);
} catch (RemoteException ex) {
Log.w(TAG, "Could not get current keyboard layout for input device.", ex);
return null;
}
}
/**
* Sets the current keyboard layout descriptor for the specified input
* device.
* <p>
* This method may have the side-effect of causing the input device in
* question to be reconfigured.
* </p>
*
* @param identifier The identifier for the input device.
* @param keyboardLayoutDescriptor The keyboard layout descriptor to use,
* must not be null.
* @hide
*/
public void setCurrentKeyboardLayoutForInputDevice(InputDeviceIdentifier identifier,
String keyboardLayoutDescriptor) {
if (identifier == null) {
throw new IllegalArgumentException("identifier must not be null");
}
if (keyboardLayoutDescriptor == null) {
throw new IllegalArgumentException("keyboardLayoutDescriptor must not be null");
}
try {
mIm.setCurrentKeyboardLayoutForInputDevice(identifier,
keyboardLayoutDescriptor);
} catch (RemoteException ex) {
Log.w(TAG, "Could not set current keyboard layout for input device.", ex);
}
}
/**
* Gets all keyboard layout descriptors that are enabled for the specified
* input device.
*
* @param identifier The identifier for the input device.
* @return The keyboard layout descriptors.
* @hide
*/
public String[] getKeyboardLayoutsForInputDevice(InputDeviceIdentifier identifier) {
if (identifier == null) {
throw new IllegalArgumentException("inputDeviceDescriptor must not be null");
}
try {
return mIm.getKeyboardLayoutsForInputDevice(identifier);
} catch (RemoteException ex) {
Log.w(TAG, "Could not get keyboard layouts for input device.", ex);
return ArrayUtils.emptyArray(String.class);
}
}
/**
* Adds the keyboard layout descriptor for the specified input device.
* <p>
* This method may have the side-effect of causing the input device in
* question to be reconfigured.
* </p>
*
* @param identifier The identifier for the input device.
* @param keyboardLayoutDescriptor The descriptor of the keyboard layout to
* add.
* @hide
*/
public void addKeyboardLayoutForInputDevice(InputDeviceIdentifier identifier,
String keyboardLayoutDescriptor) {
if (identifier == null) {
throw new IllegalArgumentException("inputDeviceDescriptor must not be null");
}
if (keyboardLayoutDescriptor == null) {
throw new IllegalArgumentException("keyboardLayoutDescriptor must not be null");
}
try {
mIm.addKeyboardLayoutForInputDevice(identifier, keyboardLayoutDescriptor);
} catch (RemoteException ex) {
Log.w(TAG, "Could not add keyboard layout for input device.", ex);
}
}
/**
* Removes the keyboard layout descriptor for the specified input device.
* <p>
* This method may have the side-effect of causing the input device in
* question to be reconfigured.
* </p>
*
* @param identifier The identifier for the input device.
* @param keyboardLayoutDescriptor The descriptor of the keyboard layout to
* remove.
* @hide
*/
public void removeKeyboardLayoutForInputDevice(InputDeviceIdentifier identifier,
String keyboardLayoutDescriptor) {
if (identifier == null) {
throw new IllegalArgumentException("inputDeviceDescriptor must not be null");
}
if (keyboardLayoutDescriptor == null) {
throw new IllegalArgumentException("keyboardLayoutDescriptor must not be null");
}
try {
mIm.removeKeyboardLayoutForInputDevice(identifier, keyboardLayoutDescriptor);
} catch (RemoteException ex) {
Log.w(TAG, "Could not remove keyboard layout for input device.", ex);
}
}
/**
* Gets the TouchCalibration applied to the specified input device's coordinates.
*
* @param inputDeviceDescriptor The input device descriptor.
* @return The TouchCalibration currently assigned for use with the given
* input device. If none is set, an identity TouchCalibration is returned.
*
* @hide
*/
public TouchCalibration getTouchCalibration(String inputDeviceDescriptor, int surfaceRotation) {
try {
return mIm.getTouchCalibrationForInputDevice(inputDeviceDescriptor, surfaceRotation);
} catch (RemoteException ex) {
Log.w(TAG, "Could not get calibration matrix for input device.", ex);
return TouchCalibration.IDENTITY;
}
}
/**
* Sets the TouchCalibration to apply to the specified input device's coordinates.
* <p>
* This method may have the side-effect of causing the input device in question
* to be reconfigured. Requires {@link android.Manifest.permissions.SET_INPUT_CALIBRATION}.
* </p>
*
* @param inputDeviceDescriptor The input device descriptor.
* @param calibration The calibration to be applied
*
* @hide
*/
public void setTouchCalibration(String inputDeviceDescriptor, int surfaceRotation,
TouchCalibration calibration) {
try {
mIm.setTouchCalibrationForInputDevice(inputDeviceDescriptor, surfaceRotation, calibration);
} catch (RemoteException ex) {
Log.w(TAG, "Could not set calibration matrix for input device.", ex);
}
}
/**
* Gets the mouse pointer speed.
* <p>
* Only returns the permanent mouse pointer speed. Ignores any temporary pointer
* speed set by {@link #tryPointerSpeed}.
* </p>
*
* @param context The application context.
* @return The pointer speed as a value between {@link #MIN_POINTER_SPEED} and
* {@link #MAX_POINTER_SPEED}, or the default value {@link #DEFAULT_POINTER_SPEED}.
*
* @hide
*/
public int getPointerSpeed(Context context) {
int speed = DEFAULT_POINTER_SPEED;
try {
speed = Settings.System.getInt(context.getContentResolver(),
Settings.System.POINTER_SPEED);
} catch (SettingNotFoundException snfe) {
}
return speed;
}
/**
* Sets the mouse pointer speed.
* <p>
* Requires {@link android.Manifest.permissions.WRITE_SETTINGS}.
* </p>
*
* @param context The application context.
* @param speed The pointer speed as a value between {@link #MIN_POINTER_SPEED} and
* {@link #MAX_POINTER_SPEED}, or the default value {@link #DEFAULT_POINTER_SPEED}.
*
* @hide
*/
public void setPointerSpeed(Context context, int speed) {
if (speed < MIN_POINTER_SPEED || speed > MAX_POINTER_SPEED) {
throw new IllegalArgumentException("speed out of range");
}
Settings.System.putInt(context.getContentResolver(),
Settings.System.POINTER_SPEED, speed);
}
/**
* Changes the mouse pointer speed temporarily, but does not save the setting.
* <p>
* Requires {@link android.Manifest.permission.SET_POINTER_SPEED}.
* </p>
*
* @param speed The pointer speed as a value between {@link #MIN_POINTER_SPEED} and
* {@link #MAX_POINTER_SPEED}, or the default value {@link #DEFAULT_POINTER_SPEED}.
*
* @hide
*/
public void tryPointerSpeed(int speed) {
if (speed < MIN_POINTER_SPEED || speed > MAX_POINTER_SPEED) {
throw new IllegalArgumentException("speed out of range");
}
try {
mIm.tryPointerSpeed(speed);
} catch (RemoteException ex) {
Log.w(TAG, "Could not set temporary pointer speed.", ex);
}
}
/**
* Queries the framework about whether any physical keys exist on the
* any keyboard attached to the device that are capable of producing the given
* array of key codes.
*
* @param keyCodes The array of key codes to query.
* @return A new array of the same size as the key codes array whose elements
* are set to true if at least one attached keyboard supports the corresponding key code
* at the same index in the key codes array.
*
* @hide
*/
public boolean[] deviceHasKeys(int[] keyCodes) {
return deviceHasKeys(-1, keyCodes);
}
/**
* Queries the framework about whether any physical keys exist on the
* any keyboard attached to the device that are capable of producing the given
* array of key codes.
*
* @param id The id of the device to query.
* @param keyCodes The array of key codes to query.
* @return A new array of the same size as the key codes array whose elements are set to true
* if the given device could produce the corresponding key code at the same index in the key
* codes array.
*
* @hide
*/
public boolean[] deviceHasKeys(int id, int[] keyCodes) {
boolean[] ret = new boolean[keyCodes.length];
try {
mIm.hasKeys(id, InputDevice.SOURCE_ANY, keyCodes, ret);
} catch (RemoteException e) {
// no fallback; just return the empty array
}
return ret;
}
/**
* Injects an input event into the event system on behalf of an application.
* The synchronization mode determines whether the method blocks while waiting for
* input injection to proceed.
* <p>
* Requires {@link android.Manifest.permission.INJECT_EVENTS} to inject into
* windows that are owned by other applications.
* </p><p>
* Make sure you correctly set the event time and input source of the event
* before calling this method.
* </p>
*
* @param event The event to inject.
* @param mode The synchronization mode. One of:
* {@link #INJECT_INPUT_EVENT_MODE_ASYNC},
* {@link #INJECT_INPUT_EVENT_MODE_WAIT_FOR_RESULT}, or
* {@link #INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH}.
* @return True if input event injection succeeded.
*
* @hide
*/
public boolean injectInputEvent(InputEvent event, int mode) {
if (event == null) {
throw new IllegalArgumentException("event must not be null");
}
if (mode != INJECT_INPUT_EVENT_MODE_ASYNC
&& mode != INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH
&& mode != INJECT_INPUT_EVENT_MODE_WAIT_FOR_RESULT) {
throw new IllegalArgumentException("mode is invalid");
}
try {
return mIm.injectInputEvent(event, mode);
} catch (RemoteException ex) {
return false;
}
}
private void populateInputDevicesLocked() {
if (mInputDevicesChangedListener == null) {
final InputDevicesChangedListener listener = new InputDevicesChangedListener();
try {
mIm.registerInputDevicesChangedListener(listener);
} catch (RemoteException ex) {
throw new RuntimeException(
"Could not get register input device changed listener", ex);
}
mInputDevicesChangedListener = listener;
}
if (mInputDevices == null) {
final int[] ids;
try {
ids = mIm.getInputDeviceIds();
} catch (RemoteException ex) {
throw new RuntimeException("Could not get input device ids.", ex);
}
mInputDevices = new SparseArray<InputDevice>();
for (int i = 0; i < ids.length; i++) {
mInputDevices.put(ids[i], null);
}
}
}
private void onInputDevicesChanged(int[] deviceIdAndGeneration) {
if (DEBUG) {
Log.d(TAG, "Received input devices changed.");
}
synchronized (mInputDevicesLock) {
for (int i = mInputDevices.size(); --i > 0; ) {
final int deviceId = mInputDevices.keyAt(i);
if (!containsDeviceId(deviceIdAndGeneration, deviceId)) {
if (DEBUG) {
Log.d(TAG, "Device removed: " + deviceId);
}
mInputDevices.removeAt(i);
sendMessageToInputDeviceListenersLocked(MSG_DEVICE_REMOVED, deviceId);
}
}
for (int i = 0; i < deviceIdAndGeneration.length; i += 2) {
final int deviceId = deviceIdAndGeneration[i];
int index = mInputDevices.indexOfKey(deviceId);
if (index >= 0) {
final InputDevice device = mInputDevices.valueAt(index);
if (device != null) {
final int generation = deviceIdAndGeneration[i + 1];
if (device.getGeneration() != generation) {
if (DEBUG) {
Log.d(TAG, "Device changed: " + deviceId);
}
mInputDevices.setValueAt(index, null);
sendMessageToInputDeviceListenersLocked(MSG_DEVICE_CHANGED, deviceId);
}
}
} else {
if (DEBUG) {
Log.d(TAG, "Device added: " + deviceId);
}
mInputDevices.put(deviceId, null);
sendMessageToInputDeviceListenersLocked(MSG_DEVICE_ADDED, deviceId);
}
}
}
}
private void sendMessageToInputDeviceListenersLocked(int what, int deviceId) {
final int numListeners = mInputDeviceListeners.size();
for (int i = 0; i < numListeners; i++) {
InputDeviceListenerDelegate listener = mInputDeviceListeners.get(i);
listener.sendMessage(listener.obtainMessage(what, deviceId, 0));
}
}
private static boolean containsDeviceId(int[] deviceIdAndGeneration, int deviceId) {
for (int i = 0; i < deviceIdAndGeneration.length; i += 2) {
if (deviceIdAndGeneration[i] == deviceId) {
return true;
}
}
return false;
}
/**
* Gets a vibrator service associated with an input device, assuming it has one.
* @return The vibrator, never null.
* @hide
*/
public Vibrator getInputDeviceVibrator(int deviceId) {
return new InputDeviceVibrator(deviceId);
}
/**
* Listens for changes in input devices.
*/
public interface InputDeviceListener {
/**
* Called whenever an input device has been added to the system.
* Use {@link InputManager#getInputDevice} to get more information about the device.
*
* @param deviceId The id of the input device that was added.
*/
void onInputDeviceAdded(int deviceId);
/**
* Called whenever an input device has been removed from the system.
*
* @param deviceId The id of the input device that was removed.
*/
void onInputDeviceRemoved(int deviceId);
/**
* Called whenever the properties of an input device have changed since they
* were last queried. Use {@link InputManager#getInputDevice} to get
* a fresh {@link InputDevice} object with the new properties.
*
* @param deviceId The id of the input device that changed.
*/
void onInputDeviceChanged(int deviceId);
}
private final class InputDevicesChangedListener extends IInputDevicesChangedListener.Stub {
@Override
public void onInputDevicesChanged(int[] deviceIdAndGeneration) throws RemoteException {
InputManager.this.onInputDevicesChanged(deviceIdAndGeneration);
}
}
private static final class InputDeviceListenerDelegate extends Handler {
public final InputDeviceListener mListener;
public InputDeviceListenerDelegate(InputDeviceListener listener, Handler handler) {
super(handler != null ? handler.getLooper() : Looper.myLooper());
mListener = listener;
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_DEVICE_ADDED:
mListener.onInputDeviceAdded(msg.arg1);
break;
case MSG_DEVICE_REMOVED:
mListener.onInputDeviceRemoved(msg.arg1);
break;
case MSG_DEVICE_CHANGED:
mListener.onInputDeviceChanged(msg.arg1);
break;
}
}
}
private final class InputDeviceVibrator extends Vibrator {
private final int mDeviceId;
private final Binder mToken;
public InputDeviceVibrator(int deviceId) {
mDeviceId = deviceId;
mToken = new Binder();
}
@Override
public boolean hasVibrator() {
return true;
}
/**
* @hide
*/
@Override
public void vibrate(int uid, String opPkg, long milliseconds, AudioAttributes attributes) {
vibrate(new long[] { 0, milliseconds}, -1);
}
/**
* @hide
*/
@Override
public void vibrate(int uid, String opPkg, long[] pattern, int repeat,
AudioAttributes attributes) {
if (repeat >= pattern.length) {
throw new ArrayIndexOutOfBoundsException();
}
try {
mIm.vibrate(mDeviceId, pattern, repeat, mToken);
} catch (RemoteException ex) {
Log.w(TAG, "Failed to vibrate.", ex);
}
}
@Override
public void cancel() {
try {
mIm.cancelVibrate(mDeviceId, mToken);
} catch (RemoteException ex) {
Log.w(TAG, "Failed to cancel vibration.", ex);
}
}
}
}
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