org.microemu.device.InputMethod Maven / Gradle / Ivy
/*
* MicroEmulator
* Copyright (C) 2001 Bartek Teodorczyk
*
* It is licensed under the following two licenses as alternatives:
* 1. GNU Lesser General Public License (the "LGPL") version 2.1 or any newer version
* 2. Apache License (the "AL") Version 2.0
*
* You may not use this file except in compliance with at least one of
* the above two licenses.
*
* You may obtain a copy of the LGPL at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
*
* You may obtain a copy of the AL 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 LGPL or the AL for the specific language governing permissions and
* limitations.
*/
package org.microemu.device;
import javax.microedition.lcdui.TextField;
public abstract class InputMethod
{
public static final int INPUT_NONE = 0;
public static final int INPUT_123 = 1;
public static final int INPUT_ABC_UPPER = 2;
public static final int INPUT_ABC_LOWER = 3;
static InputMethod inputMethod = null;
int inputMode = INPUT_NONE;
protected InputMethodListener inputMethodListener = null;
protected int maxSize;
// TODO to be removed when event dispatcher will run input method task
public abstract void dispose();
public abstract int getGameAction(int keyCode);
public abstract int getKeyCode(int gameAction);
public abstract String getKeyName(int keyCode) throws IllegalArgumentException;
public void removeInputMethodListener(InputMethodListener l)
{
if (l == inputMethodListener) {
inputMethodListener = null;
setInputMode(INPUT_NONE);
}
}
public void setInputMethodListener(InputMethodListener l)
{
inputMethodListener = l;
switch (l.getConstraints() & TextField.CONSTRAINT_MASK) {
case TextField.ANY :
case TextField.EMAILADDR :
case TextField.URL :
setInputMode(INPUT_ABC_LOWER);
break;
case TextField.NUMERIC :
case TextField.PHONENUMBER :
case TextField.DECIMAL :
setInputMode(INPUT_123);
break;
}
}
public int getInputMode()
{
return inputMode;
}
public void setInputMode(int mode)
{
inputMode = mode;
}
public void setMaxSize(int maxSize)
{
this.maxSize = maxSize;
}
public static boolean validate(String text, int constraints)
{
switch (constraints & TextField.CONSTRAINT_MASK) {
case TextField.ANY :
break;
case TextField.EMAILADDR :
// TODO validate email
break;
case TextField.NUMERIC :
if (text != null && text.length() > 0 && !text.equals("-")) {
try {
Long.parseLong(text);
} catch (NumberFormatException e) {
return false;
}
}
break;
case TextField.PHONENUMBER :
if (text != null && text.length() > 0) {
for (int i = 0; i < text.length(); i++) {
char c = text.charAt(i);
if (!Character.isDigit(c) && c != '-' && c != '.' && c != ' ' && c != '+') {
return false;
}
}
}
break;
case TextField.URL :
// TODO validate url
break;
case TextField.DECIMAL :
if (text != null && text.length() > 0 && !text.equals("-")) {
try {
Double.valueOf(text);
} catch (NumberFormatException e) {
return false;
}
}
break;
}
return true;
}
}