/*
* SFormattedTextField.java
*
* Created on 9. September 2003, 09:05
*/
/*
* Copyright 2000,2005 wingS development team.
*
* This file is part of wingS (http://wingsframework.org).
*
* wingS 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.
*
* Please see COPYING for the complete licence.
*/
package org.wings;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.text.ParseException;
import java.text.*;
import org.wings.text.SDefaultFormatterFactory;
import org.wings.text.SDateFormatter;
import org.wings.text.SInternationalFormatter;
import org.wings.text.SNumberFormatter;
import java.util.Date;
import org.wings.plaf.TextFieldCG;
import org.wings.text.SAbstractFormatter;
import org.wings.text.SDefaultFormatter;
/**
* Formats it content interactivly on the server side via DWR/AJAX.
*
* @author theresia
*/
public class SFormattedTextField extends STextField {
private final static Log log = LogFactory.getLog(SFormattedTextField.class);
public final static int COMMIT = 0;
public final static int COMMIT_OR_REVERT = 1;
private int focusLostBehavior = COMMIT_OR_REVERT;
/* The last valid value */
private Object value = null;
private SAbstractFormatter formatter = null;
private SAbstractFormatterFactory factory = null;
/**
* Creates a SFormattedTextField
*/
public SFormattedTextField() {
}
/**
* Creates a SFormattedTextField with the given value
* @param value
*/
public SFormattedTextField( Object value ) {
setValue( value );
}
/**
* Creates a SFormattedTextField with the given SAbstractFormatter
* @param formatter SAbstractFormatter
*/
public SFormattedTextField( SAbstractFormatter formatter ) {
setFormatter(formatter);
}
/**
* Creates a SFormattedTextField with the given AbstractFormatterFactory
* @param factory SAbstractFormatterFactory
*/
public SFormattedTextField( SAbstractFormatterFactory factory ) {
setFormatterFactory( factory );
}
/**
* Sets the value
* @param object value
*/
public void setValue(Object object) {
String string = null;
try {
string = getFormatter().valueToString(object);
this.value = object;
putClientProperty("lastValid", string );
} catch (ParseException e) {
log.info("Unable to parse object" + e);
}
super.setText( string );
}
/**
* Returns the last valid value
* @return the last valid value
*/
public Object getValue() {
Object returnValue;
try {
returnValue = getFormatter().stringToValue(this.getText());
value = returnValue;
} catch (ParseException e) {
log.debug("Unable to parse string" + e);
returnValue = value;
}
return returnValue;
}
public void processLowLevelEvent(String action, String[] values) {
processKeyEvents(values);
if (action.endsWith("_keystroke"))
return;
String orgText = getText() == null ? "" : getText();
String newText = "";
if (isEditable() && isEnabled()) {
if ( !orgText.equals(values[0]) ) {
try {
SAbstractFormatter formatter = getFormatter();
newText = formatter.valueToString(formatter.stringToValue(values[0]));
} catch (ParseException e) {
switch( getFocusLostBehavior() ) {
case COMMIT_OR_REVERT :
newText = orgText;
break;
case COMMIT :
newText = values[0];
break;
}
}
getDocument().setDelayEvents(true);
setText(newText);
getDocument().setDelayEvents(false);
if (newText == null)
newText = "";
if ( !newText.equals(values[0]) && orgText.equals( newText ) ) {
update( ((TextFieldCG)getCG()).getTextUpdate( this, getText() ) );
}
SForm.addArmedComponent(this);
}
}
}
public boolean isEditValid() {
boolean isEditValid = true;
try {
getFormatter().valueToString( getFormatter().stringToValue(getText()) );
} catch ( ParseException e ) {
isEditValid = false;
}
return isEditValid;
}
/**
* Sets the focus lost behavior
* <code>COMMIT</code>
* <code>COMMIT_OR_REVERT</code>
* @param behavior focus lost behavior
*/
public void setFocusLostBehavior( int behavior ) {
if ( behavior != COMMIT && behavior != COMMIT_OR_REVERT ) {
throw new IllegalArgumentException("i don't know your behavior");
}
focusLostBehavior = behavior;
}
/**
* Returns the focus lost behavior
* @return focus lost behavior
*/
public int getFocusLostBehavior () {
return this.focusLostBehavior;
}
/**
* Returns the SAbstractFormatter
* @return SAbstractFormatter
*/
public SAbstractFormatter getFormatter() {
SAbstractFormatter formatter = this.formatter;
if (formatter == null) {
SAbstractFormatterFactory aff = getFormatterFactory();
if ( aff == null ) {
aff = getDefaultFormatterFactory( value );
}
formatter = aff.getFormatter(this);
}
return formatter;
}
/**
* Sets the SAbstractFormatter
* @param formatter SAbstactFormatter
*/
public void setFormatter(SAbstractFormatter formatter) {
this.formatter = formatter;
}
/**
* Sets the FormatterFactory
* @param ff AbstractFormatterFactory
*/
public void setFormatterFactory ( SAbstractFormatterFactory ff ) {
this.factory = ff;
this.formatter = null;
setValue( value );
}
/**
* Returns the FormatterFactory
* @return SAbstractFormatterFactory
*/
public SAbstractFormatterFactory getFormatterFactory () {
return this.factory;
}
private SAbstractFormatterFactory getDefaultFormatterFactory(Object type) {
SAbstractFormatterFactory factory = null;
if (type instanceof DateFormat) {
factory = new SDefaultFormatterFactory(new SDateFormatter( (DateFormat)type ) );
}
if (type instanceof NumberFormat) {
factory = new SDefaultFormatterFactory(new SNumberFormatter( (NumberFormat)type ) );
}
if (type instanceof Format) {
factory = new SDefaultFormatterFactory(new SInternationalFormatter( (Format)type ) );
}
if (type instanceof Date) {
factory = new SDefaultFormatterFactory(new SDateFormatter( ) );
}
if (type instanceof Number) {
SAbstractFormatter displayFormatter = new SNumberFormatter();
SAbstractFormatter editFormatter = new SNumberFormatter( new DecimalFormat( "#.#" ) );
factory = new SDefaultFormatterFactory( displayFormatter, displayFormatter, editFormatter );
}
if ( factory == null ) {
factory = new SDefaultFormatterFactory(new SDefaultFormatter());
}
return factory;
}
public static abstract class SAbstractFormatterFactory {
/**
* Returns an AbstractFormatter
*
* @return AbstractFormatter
* @param ftf SFormattedTextField
*/
public abstract SAbstractFormatter getFormatter(SFormattedTextField ftf);
}
}
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