services/java/com/android/server/InputManager.java - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2010 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;

 import com.android.internal.util.XmlUtils;
 import com.android.server.KeyInputQueue.VirtualKey;

 import org.xmlpull.v1.XmlPullParser;

 import android.content.Context;
 import android.content.res.Configuration;
 import android.os.Environment;
 import android.os.LocalPowerManager;
 import android.os.PowerManager;
 import android.util.Log;
 import android.util.Slog;
 import android.util.Xml;
 import android.view.InputChannel;
 import android.view.InputTarget;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.RawInputEvent;
 import android.view.Surface;
 import android.view.WindowManagerPolicy;

 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.PrintWriter;
 import java.util.ArrayList;

 /*
  * Wraps the C++ InputManager and provides its callbacks.
  *
  * XXX Tempted to promote this to a first-class service, ie. InputManagerService, to
  *     improve separation of concerns with respect to the window manager.
  */
 public class InputManager {
     static final String TAG = "InputManager";

     private final Callbacks mCallbacks;
     private final Context mContext;
     private final WindowManagerService mWindowManagerService;
     private final WindowManagerPolicy mWindowManagerPolicy;
     private final PowerManager mPowerManager;
     private final PowerManagerService mPowerManagerService;

     private int mTouchScreenConfig;
     private int mKeyboardConfig;
     private int mNavigationConfig;

     private static native void nativeInit(Callbacks callbacks);
     private static native void nativeStart();
     private static native void nativeSetDisplaySize(int displayId, int width, int height);
     private static native void nativeSetDisplayOrientation(int displayId, int rotation);

     private static native int nativeGetScanCodeState(int deviceId, int deviceClasses,
             int scanCode);
     private static native int nativeGetKeyCodeState(int deviceId, int deviceClasses,
             int keyCode);
     private static native int nativeGetSwitchState(int deviceId, int deviceClasses,
             int sw);
     private static native boolean nativeHasKeys(int[] keyCodes, boolean[] keyExists);
     private static native void nativeRegisterInputChannel(InputChannel inputChannel);
     private static native void nativeUnregisterInputChannel(InputChannel inputChannel);

     // Device class as defined by EventHub.
     private static final int CLASS_KEYBOARD = 0x00000001;
     private static final int CLASS_ALPHAKEY = 0x00000002;
     private static final int CLASS_TOUCHSCREEN = 0x00000004;
     private static final int CLASS_TRACKBALL = 0x00000008;
     private static final int CLASS_TOUCHSCREEN_MT = 0x00000010;
     private static final int CLASS_DPAD = 0x00000020;

     public InputManager(Context context,
             WindowManagerService windowManagerService,
             WindowManagerPolicy windowManagerPolicy,
             PowerManager powerManager,
             PowerManagerService powerManagerService) {
         this.mContext = context;
         this.mWindowManagerService = windowManagerService;
         this.mWindowManagerPolicy = windowManagerPolicy;
         this.mPowerManager = powerManager;
         this.mPowerManagerService = powerManagerService;

         this.mCallbacks = new Callbacks();

         mTouchScreenConfig = Configuration.TOUCHSCREEN_NOTOUCH;
         mKeyboardConfig = Configuration.KEYBOARD_NOKEYS;
         mNavigationConfig = Configuration.NAVIGATION_NONAV;

         init();
     }

     private void init() {
         Slog.i(TAG, "Initializing input manager");
         nativeInit(mCallbacks);
     }

     public void start() {
         Slog.i(TAG, "Starting input manager");
         nativeStart();
     }

     public void setDisplaySize(int displayId, int width, int height) {
         if (width <= 0 || height <= 0) {
             throw new IllegalArgumentException("Invalid display id or dimensions.");
         }

         Slog.i(TAG, "Setting display #" + displayId + " size to " + width + "x" + height);
         nativeSetDisplaySize(displayId, width, height);
     }

     public void setDisplayOrientation(int displayId, int rotation) {
         if (rotation < Surface.ROTATION_0 || rotation > Surface.ROTATION_270) {
             throw new IllegalArgumentException("Invalid rotation.");
         }

         Slog.i(TAG, "Setting display #" + displayId + " orientation to " + rotation);
         nativeSetDisplayOrientation(displayId, rotation);
     }

     public void getInputConfiguration(Configuration config) {
         if (config == null) {
             throw new IllegalArgumentException("config must not be null.");
         }

         config.touchscreen = mTouchScreenConfig;
         config.keyboard = mKeyboardConfig;
         config.navigation = mNavigationConfig;
     }

     public int getScancodeState(int code) {
         return nativeGetScanCodeState(0, -1, code);
     }

     public int getScancodeState(int deviceId, int code) {
         return nativeGetScanCodeState(deviceId, -1, code);
     }

     public int getTrackballScancodeState(int code) {
         return nativeGetScanCodeState(-1, CLASS_TRACKBALL, code);
     }

     public int getDPadScancodeState(int code) {
         return nativeGetScanCodeState(-1, CLASS_DPAD, code);
     }

     public int getKeycodeState(int code) {
         return nativeGetKeyCodeState(0, -1, code);
     }

     public int getKeycodeState(int deviceId, int code) {
         return nativeGetKeyCodeState(deviceId, -1, code);
     }

     public int getTrackballKeycodeState(int code) {
         return nativeGetKeyCodeState(-1, CLASS_TRACKBALL, code);
     }

     public int getDPadKeycodeState(int code) {
         return nativeGetKeyCodeState(-1, CLASS_DPAD, code);
     }

     public int getSwitchState(int sw) {
         return nativeGetSwitchState(-1, -1, sw);
     }

     public int getSwitchState(int deviceId, int sw) {
         return nativeGetSwitchState(deviceId, -1, sw);
     }

     public boolean hasKeys(int[] keyCodes, boolean[] keyExists) {
         if (keyCodes == null) {
             throw new IllegalArgumentException("keyCodes must not be null.");
         }
         if (keyExists == null) {
             throw new IllegalArgumentException("keyExists must not be null.");
         }

         return nativeHasKeys(keyCodes, keyExists);
     }

     public void registerInputChannel(InputChannel inputChannel) {
         if (inputChannel == null) {
             throw new IllegalArgumentException("inputChannel must not be null.");
         }

         nativeRegisterInputChannel(inputChannel);
     }

     public void unregisterInputChannel(InputChannel inputChannel) {
         if (inputChannel == null) {
             throw new IllegalArgumentException("inputChannel must not be null.");
         }

         nativeUnregisterInputChannel(inputChannel);
     }

     // TBD where this really belongs, duplicate copy in WindowManagerService
     static final int INJECT_FAILED = 0;
     static final int INJECT_SUCCEEDED = 1;
     static final int INJECT_NO_PERMISSION = -1;

     /**
      * Injects a key event into the event system on behalf of an application.
      * @param event The event to inject.
      * @param nature The nature of the event.
      * @param sync If true, waits for the event to be completed before returning.
      * @param pid The pid of the injecting application.
      * @param uid The uid of the injecting application.
      * @return INJECT_SUCCEEDED, INJECT_FAILED or INJECT_NO_PERMISSION
      */
     public int injectKeyEvent(KeyEvent event, int nature, boolean sync, int pid, int uid) {
         // TODO
         return INJECT_FAILED;
     }

     /**
      * Injects a motion event into the event system on behalf of an application.
      * @param event The event to inject.
      * @param nature The nature of the event.
      * @param sync If true, waits for the event to be completed before returning.
      * @param pid The pid of the injecting application.
      * @param uid The uid of the injecting application.
      * @return INJECT_SUCCEEDED, INJECT_FAILED or INJECT_NO_PERMISSION
      */
     public int injectMotionEvent(MotionEvent event, int nature, boolean sync, int pid, int uid) {
         // TODO
         return INJECT_FAILED;
     }

     public void dump(PrintWriter pw) {
         // TODO
     }

     private static final class VirtualKeyDefinition {
         public int scanCode;

         // configured position data, specified in display coords
         public int centerX;
         public int centerY;
         public int width;
         public int height;
     }

     /*
      * Callbacks from native.
      */
     private class Callbacks {
         static final String TAG = "InputManager-Callbacks";

         private static final boolean DEBUG_VIRTUAL_KEYS = false;
         private static final String EXCLUDED_DEVICES_PATH = "etc/excluded-input-devices.xml";

         private final InputTargetList mReusableInputTargetList = new InputTargetList();

         @SuppressWarnings("unused")
         public boolean isScreenOn() {
             return mPowerManagerService.isScreenOn();
         }

         @SuppressWarnings("unused")
         public boolean isScreenBright() {
             return mPowerManagerService.isScreenBright();
         }

         @SuppressWarnings("unused")
         public void virtualKeyFeedback(long whenNanos, int deviceId, int action, int flags,
                 int keyCode, int scanCode, int metaState, long downTimeNanos) {
             KeyEvent keyEvent = new KeyEvent(downTimeNanos / 1000000,
                     whenNanos / 1000000, action, keyCode, 0, metaState, scanCode, deviceId,
                     flags);

             mWindowManagerService.virtualKeyFeedback(keyEvent);
         }

         @SuppressWarnings("unused")
         public void notifyConfigurationChanged(long whenNanos,
                 int touchScreenConfig, int keyboardConfig, int navigationConfig) {
             mTouchScreenConfig = touchScreenConfig;
             mKeyboardConfig = keyboardConfig;
             mNavigationConfig = navigationConfig;

             mWindowManagerService.sendNewConfiguration();
         }

         @SuppressWarnings("unused")
         public void notifyLidSwitchChanged(long whenNanos, boolean lidOpen) {
             mWindowManagerPolicy.notifyLidSwitchChanged(whenNanos, lidOpen);
         }

         @SuppressWarnings("unused")
         public int hackInterceptKey(int deviceId, int type, int scanCode,
                 int keyCode, int policyFlags, int value, long whenNanos, boolean isScreenOn) {
             RawInputEvent event = new RawInputEvent();
             event.deviceId = deviceId;
             event.type = type;
             event.scancode = scanCode;
             event.keycode = keyCode;
             event.flags = policyFlags;
             event.value = value;
             event.when = whenNanos / 1000000;

             return mWindowManagerPolicy.interceptKeyTq(event, isScreenOn);
         }

         @SuppressWarnings("unused")
         public void goToSleep(long whenNanos) {
             long when = whenNanos / 1000000;
             mPowerManager.goToSleep(when);
         }

         @SuppressWarnings("unused")
         public void pokeUserActivityForKey(long whenNanos) {
             long when = whenNanos / 1000000;
             mPowerManagerService.userActivity(when, false,
                     LocalPowerManager.BUTTON_EVENT, false);
         }

         @SuppressWarnings("unused")
         public void notifyAppSwitchComing() {
             mWindowManagerService.mKeyWaiter.appSwitchComing();
         }

         @SuppressWarnings("unused")
         public boolean filterTouchEvents() {
             return mContext.getResources().getBoolean(
                     com.android.internal.R.bool.config_filterTouchEvents);
         }

         @SuppressWarnings("unused")
         public boolean filterJumpyTouchEvents() {
             return mContext.getResources().getBoolean(
                     com.android.internal.R.bool.config_filterJumpyTouchEvents);
         }

         @SuppressWarnings("unused")
         public VirtualKeyDefinition[] getVirtualKeyDefinitions(String deviceName) {
             ArrayList<VirtualKeyDefinition> keys = new ArrayList<VirtualKeyDefinition>();

             try {
                 FileInputStream fis = new FileInputStream(
                         "/sys/board_properties/virtualkeys." + deviceName);
                 InputStreamReader isr = new InputStreamReader(fis);
                 BufferedReader br = new BufferedReader(isr, 2048);
                 String str = br.readLine();
                 if (str != null) {
                     String[] it = str.split(":");
                     if (DEBUG_VIRTUAL_KEYS) Slog.v(TAG, "***** VIRTUAL KEYS: " + it);
                     final int N = it.length-6;
                     for (int i=0; i<=N; i+=6) {
                         if (!"0x01".equals(it[i])) {
                             Slog.w(TAG, "Unknown virtual key type at elem #" + i
                                     + ": " + it[i]);
                             continue;
                         }
                         try {
                             VirtualKeyDefinition key = new VirtualKeyDefinition();
                             key.scanCode = Integer.parseInt(it[i+1]);
                             key.centerX = Integer.parseInt(it[i+2]);
                             key.centerY = Integer.parseInt(it[i+3]);
                             key.width = Integer.parseInt(it[i+4]);
                             key.height = Integer.parseInt(it[i+5]);
                             if (DEBUG_VIRTUAL_KEYS) Slog.v(TAG, "Virtual key "
                                     + key.scanCode + ": center=" + key.centerX + ","
                                     + key.centerY + " size=" + key.width + "x"
                                     + key.height);
                             keys.add(key);
                         } catch (NumberFormatException e) {
                             Slog.w(TAG, "Bad number at region " + i + " in: "
                                     + str, e);
                         }
                     }
                 }
                 br.close();
             } catch (FileNotFoundException e) {
                 Slog.i(TAG, "No virtual keys found");
             } catch (IOException e) {
                 Slog.w(TAG, "Error reading virtual keys", e);
             }

             return keys.toArray(new VirtualKeyDefinition[keys.size()]);
         }

         @SuppressWarnings("unused")
         public String[] getExcludedDeviceNames() {
             ArrayList<String> names = new ArrayList<String>();

             // Read partner-provided list of excluded input devices
             XmlPullParser parser = null;
             // Environment.getRootDirectory() is a fancy way of saying ANDROID_ROOT or "/system".
             File confFile = new File(Environment.getRootDirectory(), EXCLUDED_DEVICES_PATH);
             FileReader confreader = null;
             try {
                 confreader = new FileReader(confFile);
                 parser = Xml.newPullParser();
                 parser.setInput(confreader);
                 XmlUtils.beginDocument(parser, "devices");

                 while (true) {
                     XmlUtils.nextElement(parser);
                     if (!"device".equals(parser.getName())) {
                         break;
                     }
                     String name = parser.getAttributeValue(null, "name");
                     if (name != null) {
                         names.add(name);
                     }
                 }
             } catch (FileNotFoundException e) {
                 // It's ok if the file does not exist.
             } catch (Exception e) {
                 Slog.e(TAG, "Exception while parsing '" + confFile.getAbsolutePath() + "'", e);
             } finally {
                 try { if (confreader != null) confreader.close(); } catch (IOException e) { }
             }

             return names.toArray(new String[names.size()]);
         }

         @SuppressWarnings("unused")
         public InputTarget[] getKeyEventTargets(KeyEvent event, int nature, int policyFlags) {
             mReusableInputTargetList.clear();

             mWindowManagerService.getKeyEventTargets(mReusableInputTargetList,
                     event, nature, policyFlags);

             return mReusableInputTargetList.toNullTerminatedArray();
         }

         @SuppressWarnings("unused")
         public InputTarget[] getMotionEventTargets(MotionEvent event, int nature, int policyFlags) {
             mReusableInputTargetList.clear();

             mWindowManagerService.getMotionEventTargets(mReusableInputTargetList,
                     event, nature, policyFlags);

             return mReusableInputTargetList.toNullTerminatedArray();
         }
     }
 }
	/*
	* Copyright (C) 2010 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;

	import com.android.internal.util.XmlUtils;
	import com.android.server.KeyInputQueue.VirtualKey;

	import org.xmlpull.v1.XmlPullParser;

	import android.content.Context;
	import android.content.res.Configuration;
	import android.os.Environment;
	import android.os.LocalPowerManager;
	import android.os.PowerManager;
	import android.util.Log;
	import android.util.Slog;
	import android.util.Xml;
	import android.view.InputChannel;
	import android.view.InputTarget;
	import android.view.KeyEvent;
	import android.view.MotionEvent;
	import android.view.RawInputEvent;
	import android.view.Surface;
	import android.view.WindowManagerPolicy;

	import java.io.BufferedReader;
	import java.io.File;
	import java.io.FileInputStream;
	import java.io.FileNotFoundException;
	import java.io.FileReader;
	import java.io.IOException;
	import java.io.InputStreamReader;
	import java.io.PrintWriter;
	import java.util.ArrayList;

	/*
	* Wraps the C++ InputManager and provides its callbacks.
	*
	* XXX Tempted to promote this to a first-class service, ie. InputManagerService, to
	* improve separation of concerns with respect to the window manager.
	*/
	public class InputManager {
	static final String TAG = "InputManager";

	private final Callbacks mCallbacks;
	private final Context mContext;
	private final WindowManagerService mWindowManagerService;
	private final WindowManagerPolicy mWindowManagerPolicy;
	private final PowerManager mPowerManager;
	private final PowerManagerService mPowerManagerService;

	private int mTouchScreenConfig;
	private int mKeyboardConfig;
	private int mNavigationConfig;

	private static native void nativeInit(Callbacks callbacks);
	private static native void nativeStart();
	private static native void nativeSetDisplaySize(int displayId, int width, int height);
	private static native void nativeSetDisplayOrientation(int displayId, int rotation);

	private static native int nativeGetScanCodeState(int deviceId, int deviceClasses,
	int scanCode);
	private static native int nativeGetKeyCodeState(int deviceId, int deviceClasses,
	int keyCode);
	private static native int nativeGetSwitchState(int deviceId, int deviceClasses,
	int sw);
	private static native boolean nativeHasKeys(int[] keyCodes, boolean[] keyExists);
	private static native void nativeRegisterInputChannel(InputChannel inputChannel);
	private static native void nativeUnregisterInputChannel(InputChannel inputChannel);

	// Device class as defined by EventHub.
	private static final int CLASS_KEYBOARD = 0x00000001;
	private static final int CLASS_ALPHAKEY = 0x00000002;
	private static final int CLASS_TOUCHSCREEN = 0x00000004;
	private static final int CLASS_TRACKBALL = 0x00000008;
	private static final int CLASS_TOUCHSCREEN_MT = 0x00000010;
	private static final int CLASS_DPAD = 0x00000020;

	public InputManager(Context context,
	WindowManagerService windowManagerService,
	WindowManagerPolicy windowManagerPolicy,
	PowerManager powerManager,
	PowerManagerService powerManagerService) {
	this.mContext = context;
	this.mWindowManagerService = windowManagerService;
	this.mWindowManagerPolicy = windowManagerPolicy;
	this.mPowerManager = powerManager;
	this.mPowerManagerService = powerManagerService;

	this.mCallbacks = new Callbacks();

	mTouchScreenConfig = Configuration.TOUCHSCREEN_NOTOUCH;
	mKeyboardConfig = Configuration.KEYBOARD_NOKEYS;
	mNavigationConfig = Configuration.NAVIGATION_NONAV;

	init();
	}

	private void init() {
	Slog.i(TAG, "Initializing input manager");
	nativeInit(mCallbacks);
	}

	public void start() {
	Slog.i(TAG, "Starting input manager");
	nativeStart();
	}

	public void setDisplaySize(int displayId, int width, int height) {
	if (width <= 0 \|\| height <= 0) {
	throw new IllegalArgumentException("Invalid display id or dimensions.");
	}

	Slog.i(TAG, "Setting display #" + displayId + " size to " + width + "x" + height);
	nativeSetDisplaySize(displayId, width, height);
	}

	public void setDisplayOrientation(int displayId, int rotation) {
	if (rotation < Surface.ROTATION_0 \|\| rotation > Surface.ROTATION_270) {
	throw new IllegalArgumentException("Invalid rotation.");
	}

	Slog.i(TAG, "Setting display #" + displayId + " orientation to " + rotation);
	nativeSetDisplayOrientation(displayId, rotation);
	}

	public void getInputConfiguration(Configuration config) {
	if (config == null) {
	throw new IllegalArgumentException("config must not be null.");
	}

	config.touchscreen = mTouchScreenConfig;
	config.keyboard = mKeyboardConfig;
	config.navigation = mNavigationConfig;
	}

	public int getScancodeState(int code) {
	return nativeGetScanCodeState(0, -1, code);
	}

	public int getScancodeState(int deviceId, int code) {
	return nativeGetScanCodeState(deviceId, -1, code);
	}

	public int getTrackballScancodeState(int code) {
	return nativeGetScanCodeState(-1, CLASS_TRACKBALL, code);
	}

	public int getDPadScancodeState(int code) {
	return nativeGetScanCodeState(-1, CLASS_DPAD, code);
	}

	public int getKeycodeState(int code) {
	return nativeGetKeyCodeState(0, -1, code);
	}

	public int getKeycodeState(int deviceId, int code) {
	return nativeGetKeyCodeState(deviceId, -1, code);
	}

	public int getTrackballKeycodeState(int code) {
	return nativeGetKeyCodeState(-1, CLASS_TRACKBALL, code);
	}

	public int getDPadKeycodeState(int code) {
	return nativeGetKeyCodeState(-1, CLASS_DPAD, code);
	}

	public int getSwitchState(int sw) {
	return nativeGetSwitchState(-1, -1, sw);
	}

	public int getSwitchState(int deviceId, int sw) {
	return nativeGetSwitchState(deviceId, -1, sw);
	}

	public boolean hasKeys(int[] keyCodes, boolean[] keyExists) {
	if (keyCodes == null) {
	throw new IllegalArgumentException("keyCodes must not be null.");
	}
	if (keyExists == null) {
	throw new IllegalArgumentException("keyExists must not be null.");
	}

	return nativeHasKeys(keyCodes, keyExists);
	}

	public void registerInputChannel(InputChannel inputChannel) {
	if (inputChannel == null) {
	throw new IllegalArgumentException("inputChannel must not be null.");
	}

	nativeRegisterInputChannel(inputChannel);
	}

	public void unregisterInputChannel(InputChannel inputChannel) {
	if (inputChannel == null) {
	throw new IllegalArgumentException("inputChannel must not be null.");
	}

	nativeUnregisterInputChannel(inputChannel);
	}

	// TBD where this really belongs, duplicate copy in WindowManagerService
	static final int INJECT_FAILED = 0;
	static final int INJECT_SUCCEEDED = 1;
	static final int INJECT_NO_PERMISSION = -1;

	/**
	* Injects a key event into the event system on behalf of an application.
	* @param event The event to inject.
	* @param nature The nature of the event.
	* @param sync If true, waits for the event to be completed before returning.
	* @param pid The pid of the injecting application.
	* @param uid The uid of the injecting application.
	* @return INJECT_SUCCEEDED, INJECT_FAILED or INJECT_NO_PERMISSION
	*/
	public int injectKeyEvent(KeyEvent event, int nature, boolean sync, int pid, int uid) {
	// TODO
	return INJECT_FAILED;
	}

	/**
	* Injects a motion event into the event system on behalf of an application.
	* @param event The event to inject.
	* @param nature The nature of the event.
	* @param sync If true, waits for the event to be completed before returning.
	* @param pid The pid of the injecting application.
	* @param uid The uid of the injecting application.
	* @return INJECT_SUCCEEDED, INJECT_FAILED or INJECT_NO_PERMISSION
	*/
	public int injectMotionEvent(MotionEvent event, int nature, boolean sync, int pid, int uid) {
	// TODO
	return INJECT_FAILED;
	}

	public void dump(PrintWriter pw) {
	// TODO
	}

	private static final class VirtualKeyDefinition {
	public int scanCode;

	// configured position data, specified in display coords
	public int centerX;
	public int centerY;
	public int width;
	public int height;
	}

	/*
	* Callbacks from native.
	*/
	private class Callbacks {
	static final String TAG = "InputManager-Callbacks";

	private static final boolean DEBUG_VIRTUAL_KEYS = false;
	private static final String EXCLUDED_DEVICES_PATH = "etc/excluded-input-devices.xml";

	private final InputTargetList mReusableInputTargetList = new InputTargetList();

	@SuppressWarnings("unused")
	public boolean isScreenOn() {
	return mPowerManagerService.isScreenOn();
	}

	@SuppressWarnings("unused")
	public boolean isScreenBright() {
	return mPowerManagerService.isScreenBright();
	}

	@SuppressWarnings("unused")
	public void virtualKeyFeedback(long whenNanos, int deviceId, int action, int flags,
	int keyCode, int scanCode, int metaState, long downTimeNanos) {
	KeyEvent keyEvent = new KeyEvent(downTimeNanos / 1000000,
	whenNanos / 1000000, action, keyCode, 0, metaState, scanCode, deviceId,
	flags);

	mWindowManagerService.virtualKeyFeedback(keyEvent);
	}

	@SuppressWarnings("unused")
	public void notifyConfigurationChanged(long whenNanos,
	int touchScreenConfig, int keyboardConfig, int navigationConfig) {
	mTouchScreenConfig = touchScreenConfig;
	mKeyboardConfig = keyboardConfig;
	mNavigationConfig = navigationConfig;

	mWindowManagerService.sendNewConfiguration();
	}

	@SuppressWarnings("unused")
	public void notifyLidSwitchChanged(long whenNanos, boolean lidOpen) {
	mWindowManagerPolicy.notifyLidSwitchChanged(whenNanos, lidOpen);
	}

	@SuppressWarnings("unused")
	public int hackInterceptKey(int deviceId, int type, int scanCode,
	int keyCode, int policyFlags, int value, long whenNanos, boolean isScreenOn) {
	RawInputEvent event = new RawInputEvent();
	event.deviceId = deviceId;
	event.type = type;
	event.scancode = scanCode;
	event.keycode = keyCode;
	event.flags = policyFlags;
	event.value = value;
	event.when = whenNanos / 1000000;

	return mWindowManagerPolicy.interceptKeyTq(event, isScreenOn);
	}

	@SuppressWarnings("unused")
	public void goToSleep(long whenNanos) {
	long when = whenNanos / 1000000;
	mPowerManager.goToSleep(when);
	}

	@SuppressWarnings("unused")
	public void pokeUserActivityForKey(long whenNanos) {
	long when = whenNanos / 1000000;
	mPowerManagerService.userActivity(when, false,
	LocalPowerManager.BUTTON_EVENT, false);
	}

	@SuppressWarnings("unused")
	public void notifyAppSwitchComing() {
	mWindowManagerService.mKeyWaiter.appSwitchComing();
	}

	@SuppressWarnings("unused")
	public boolean filterTouchEvents() {
	return mContext.getResources().getBoolean(
	com.android.internal.R.bool.config_filterTouchEvents);
	}

	@SuppressWarnings("unused")
	public boolean filterJumpyTouchEvents() {
	return mContext.getResources().getBoolean(
	com.android.internal.R.bool.config_filterJumpyTouchEvents);
	}

	@SuppressWarnings("unused")
	public VirtualKeyDefinition[] getVirtualKeyDefinitions(String deviceName) {
	ArrayList<VirtualKeyDefinition> keys = new ArrayList<VirtualKeyDefinition>();

	try {
	FileInputStream fis = new FileInputStream(
	"/sys/board_properties/virtualkeys." + deviceName);
	InputStreamReader isr = new InputStreamReader(fis);
	BufferedReader br = new BufferedReader(isr, 2048);
	String str = br.readLine();
	if (str != null) {
	String[] it = str.split(":");
	if (DEBUG_VIRTUAL_KEYS) Slog.v(TAG, "***** VIRTUAL KEYS: " + it);
	final int N = it.length-6;
	for (int i=0; i<=N; i+=6) {
	if (!"0x01".equals(it[i])) {
	Slog.w(TAG, "Unknown virtual key type at elem #" + i
	+ ": " + it[i]);
	continue;
	}
	try {
	VirtualKeyDefinition key = new VirtualKeyDefinition();
	key.scanCode = Integer.parseInt(it[i+1]);
	key.centerX = Integer.parseInt(it[i+2]);
	key.centerY = Integer.parseInt(it[i+3]);
	key.width = Integer.parseInt(it[i+4]);
	key.height = Integer.parseInt(it[i+5]);
	if (DEBUG_VIRTUAL_KEYS) Slog.v(TAG, "Virtual key "
	+ key.scanCode + ": center=" + key.centerX + ","
	+ key.centerY + " size=" + key.width + "x"
	+ key.height);
	keys.add(key);
	} catch (NumberFormatException e) {
	Slog.w(TAG, "Bad number at region " + i + " in: "
	+ str, e);
	}
	}
	}
	br.close();
	} catch (FileNotFoundException e) {
	Slog.i(TAG, "No virtual keys found");
	} catch (IOException e) {
	Slog.w(TAG, "Error reading virtual keys", e);
	}

	return keys.toArray(new VirtualKeyDefinition[keys.size()]);
	}

	@SuppressWarnings("unused")
	public String[] getExcludedDeviceNames() {
	ArrayList<String> names = new ArrayList<String>();

	// Read partner-provided list of excluded input devices
	XmlPullParser parser = null;
	// Environment.getRootDirectory() is a fancy way of saying ANDROID_ROOT or "/system".
	File confFile = new File(Environment.getRootDirectory(), EXCLUDED_DEVICES_PATH);
	FileReader confreader = null;
	try {
	confreader = new FileReader(confFile);
	parser = Xml.newPullParser();
	parser.setInput(confreader);
	XmlUtils.beginDocument(parser, "devices");

	while (true) {
	XmlUtils.nextElement(parser);
	if (!"device".equals(parser.getName())) {
	break;
	}
	String name = parser.getAttributeValue(null, "name");
	if (name != null) {
	names.add(name);
	}
	}
	} catch (FileNotFoundException e) {
	// It's ok if the file does not exist.
	} catch (Exception e) {
	Slog.e(TAG, "Exception while parsing '" + confFile.getAbsolutePath() + "'", e);
	} finally {
	try { if (confreader != null) confreader.close(); } catch (IOException e) { }
	}

	return names.toArray(new String[names.size()]);
	}

	@SuppressWarnings("unused")
	public InputTarget[] getKeyEventTargets(KeyEvent event, int nature, int policyFlags) {
	mReusableInputTargetList.clear();

	mWindowManagerService.getKeyEventTargets(mReusableInputTargetList,
	event, nature, policyFlags);

	return mReusableInputTargetList.toNullTerminatedArray();
	}

	@SuppressWarnings("unused")
	public InputTarget[] getMotionEventTargets(MotionEvent event, int nature, int policyFlags) {
	mReusableInputTargetList.clear();

	mWindowManagerService.getMotionEventTargets(mReusableInputTargetList,
	event, nature, policyFlags);

	return mReusableInputTargetList.toNullTerminatedArray();
	}
	}
	}