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/*
* Jitsi, the OpenSource Java VoIP and Instant Messaging client.
*
* Copyright @ 2015 Atlassian Pty Ltd
*
* 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 net.java.sip.communicator.impl.hid;
import java.awt.*;
import java.awt.event.*;
import net.java.sip.communicator.service.hid.*;
import net.java.sip.communicator.util.Logger;
import org.jitsi.util.*;
/**
* Implementation of the HID service to provide way of regenerate key press
* and mouse interactions.
*
* @author Sebastien Vincent
*/
public class HIDServiceImpl implements HIDService
{
/**
* The <tt>Logger</tt> used by the <tt>NeomediaActivator</tt> class and its
* instances for logging output.
*/
private final Logger logger = Logger.getLogger(HIDServiceImpl.class);
/**
* The robot used to perform some operations (mouse/key interactions).
*/
private Robot robot = null;
/**
* Object to regenerates keys with JNI.
*/
private NativeKeyboard nativeKeyboard = null;
/**
* Constructor.
*/
protected HIDServiceImpl()
{
try
{
robot = new Robot();
nativeKeyboard = new NativeKeyboard();
}
catch(Throwable e)
{
if(!GraphicsEnvironment.isHeadless())
logger.error(
"Error when creating Robot/NativeKeyboard instance", e);
}
}
/**
* Press a specific key using its keycode.
*
* @param keycode the Java keycode, all available keycodes can be found
* in java.awt.event.KeyEvent class (VK_A, VK_SPACE, ...)
* @see java.awt.event.KeyEvent
*/
public void keyPress(int keycode)
{
if(OSUtils.IS_WINDOWS || OSUtils.IS_MAC)
{
/* do not allow modifiers for Windows (as
* they are handled in native code with
* VkScanCode) and Mac OS X
*/
if(keycode == KeyEvent.VK_ALT ||
keycode == KeyEvent.VK_SHIFT ||
keycode == KeyEvent.VK_ALT_GRAPH)
{
return;
}
}
/* AltGr does not seems to work with robot, handle it via our
* JNI code
*/
if(keycode == KeyEvent.VK_ALT_GRAPH)
{
symbolPress("altgr");
}
else
{
robot.keyPress(keycode);
}
}
/**
* Release a specific key using its keycode.
*
* @param keycode the Java keycode, all available keycode can be found
* in java.awt.event.KeyEvent class (VK_A, VK_SPACE, ...)
* @see java.awt.event.KeyEvent
*/
public void keyRelease(int keycode)
{
/* AltGr does not seems to work with robot, handle it via our
* JNI code
*/
if(keycode == KeyEvent.VK_ALT_GRAPH)
{
symbolRelease("altgr");
}
else
{
robot.keyRelease(keycode);
}
}
/**
* Press a specific key using its char representation.
*
* @param key char representation of the key
*/
public void keyPress(char key)
{
/* check for CTRL+X where X is [A-Z]
* CTRL+A = 1, A = 65
*/
if(key >= 1 && key <= 0x1A)
{
key = (char)(key + 64);
robot.keyPress(key);
return;
}
nativeKeyboard.keyPress(key);
}
/**
* Release a specific key using its char representation.
*
* @param key char representation of the key
*/
public void keyRelease(char key)
{
/* check for CTRL+X where X is [A-Z]
* CTRL+A = 1, A = 65
*/
if(key >= 1 && key <= 0x1A)
{
key = (char)(key + 64);
robot.keyRelease(key);
return;
}
if(nativeKeyboard != null)
nativeKeyboard.keyRelease(key);
}
/**
* Press a specific symbol (such as SHIFT or CTRL).
*
* @param symbol symbol name
*/
private void symbolPress(String symbol)
{
if(nativeKeyboard != null)
nativeKeyboard.symbolPress(symbol);
}
/**
* Release a specific symbol (such as SHIFT or CTRL).
*
* @param symbol symbol name
*/
private void symbolRelease(String symbol)
{
if(nativeKeyboard != null)
nativeKeyboard.symbolRelease(symbol);
}
/**
* Press a mouse button(s).
*
* @param btns button masks
* @see java.awt.Robot#mousePress(int btns)
*/
public void mousePress(int btns)
{
robot.mousePress(btns);
}
/**
* Release a mouse button(s).
*
* @param btns button masks
* @see java.awt.Robot#mouseRelease(int btns)
*/
public void mouseRelease(int btns)
{
robot.mouseRelease(btns);
}
/**
* Move the mouse on the screen.
*
* @param x x position on the screen
* @param y y position on the screen
* @see java.awt.Robot#mouseMove(int x, int y)
*/
public void mouseMove(int x, int y)
{
robot.mouseMove(x, y);
}
/**
* Release a mouse button(s).
*
* @param rotation wheel rotation (could be negative or positive depending
* on the direction).
* @see java.awt.Robot#mouseWheel(int wheelAmt)
*/
public void mouseWheel(int rotation)
{
robot.mouseWheel(rotation);
}
}
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