/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package javax.faces.component;
import java.util.*;
import javax.el.*;
import javax.faces.context.*;
public class UIGraphic extends UIComponentBase
{
public static final String COMPONENT_FAMILY = "javax.faces.Graphic";
public static final String COMPONENT_TYPE = "javax.faces.Graphic";
private static final HashMap<String,PropEnum> _propMap
= new HashMap<String,PropEnum>();
private String _url;
private ValueExpression _urlExpr;
private boolean _isSubmitted;
public UIGraphic()
{
setRendererType("javax.faces.Image");
}
/**
* Returns the component family, used to select the renderer.
*/
public String getFamily()
{
return COMPONENT_FAMILY;
}
//
// properties
//
public String getUrl()
{
if (_url != null)
return _url;
else if (_urlExpr != null)
return Util.evalString(_urlExpr, getFacesContext());
else
return null;
}
public void setUrl(String url)
{
_url = url;
}
public Object getValue()
{
if (_url != null)
return _url;
else if (_urlExpr != null)
return Util.eval(_urlExpr, getFacesContext());
else
return null;
}
public void setValue(Object url)
{
_url = (String) url;
}
/**
* Returns the value expression with the given name.
*/
@Override
public ValueExpression getValueExpression(String name)
{
PropEnum prop = _propMap.get(name);
if (prop != null) {
switch (_propMap.get(name)) {
case URL:
case VALUE:
return _urlExpr;
}
}
return super.getValueExpression(name);
}
/**
* Sets the value expression with the given name.
*/
@Override
public void setValueExpression(String name, ValueExpression expr)
{
PropEnum prop = _propMap.get(name);
if (prop != null) {
switch (prop) {
case URL:
case VALUE:
if (expr != null && expr.isLiteralText()) {
_url = (String) expr.getValue(null);
return;
}
else
_urlExpr = expr;
break;
}
}
super.setValueExpression(name, expr);
}
//
// state
//
@Override
public Object saveState(FacesContext context)
{
return new Object[] {
super.saveState(context),
_url,
};
}
@Override
public void restoreState(FacesContext context, Object value)
{
Object []state = (Object []) value;
super.restoreState(context, state[0]);
_url = (String) state[1];
}
//
// private helpers
//
private static enum PropEnum {
URL,
VALUE,
}
static {
_propMap.put("url", PropEnum.URL);
_propMap.put("value", PropEnum.VALUE);
}
}