/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.driver.console.textscreen;
import java.io.IOException;
import javax.naming.NameNotFoundException;
import org.jnode.bootlog.BootLogInstance;
import org.jnode.driver.ApiNotFoundException;
import org.jnode.driver.Device;
import org.jnode.driver.DeviceListener;
import org.jnode.driver.DeviceManager;
import org.jnode.driver.input.KeyboardAPI;
import org.jnode.driver.input.KeyboardEvent;
import org.jnode.driver.input.KeyboardListener;
import org.jnode.naming.InitialNaming;
import org.jnode.system.event.FocusEvent;
import org.jnode.system.event.FocusListener;
/**
* @author crawley@jnode.org
*
*/
public class DefaultKeyboardHandler extends KeyboardHandler implements KeyboardListener,
FocusListener, DeviceListener {
private KeyboardAPI api;
private final DeviceManager devMan;
private boolean hasFocus;
public DefaultKeyboardHandler(KeyboardAPI api) {
if (api != null) {
this.devMan = null;
this.api = api;
this.api.addKeyboardListener(this);
} else {
DeviceManager dm = null;
try {
dm = InitialNaming.lookup(DeviceManager.NAME);
dm.addListener(this);
} catch (NameNotFoundException ex) {
BootLogInstance.get().error("DeviceManager not found", ex);
}
this.devMan = dm;
}
}
private void registerKeyboardApi(Device device) {
if (this.api == null) {
try {
this.api = device.getAPI(KeyboardAPI.class);
this.api.addKeyboardListener(this);
} catch (ApiNotFoundException ex) {
BootLogInstance.get().error("KeyboardAPI not found", ex);
}
this.devMan.removeListener(this);
}
}
/**
* @see org.jnode.driver.input.KeyboardListener#keyPressed(org.jnode.driver.input.KeyboardEvent)
*/
public void keyPressed(KeyboardEvent event) {
if (hasFocus) {
postEvent(event);
}
}
/**
* @see org.jnode.driver.input.KeyboardListener#keyReleased(org.jnode.driver.input.KeyboardEvent)
*/
public void keyReleased(KeyboardEvent event) {
}
/**
* @see java.io.InputStream#close()
*/
public void close() throws IOException {
if (api != null) {
api.removeKeyboardListener(this);
}
}
/**
* @see org.jnode.driver.DeviceListener#deviceStarted(org.jnode.driver.Device)
*/
public void deviceStarted(Device device) {
if (device.implementsAPI(KeyboardAPI.class)) {
registerKeyboardApi(device);
}
}
/**
* @see org.jnode.driver.DeviceListener#deviceStop(org.jnode.driver.Device)
*/
public void deviceStop(Device device) {
/* Do nothing */
}
public void focusGained(FocusEvent event) {
hasFocus = true;
}
public void focusLost(FocusEvent event) {
hasFocus = false;
}
}