/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.webui.form;
import org.exoplatform.webui.application.WebuiRequestContext;
import org.exoplatform.commons.serialization.api.annotations.Serialized;
import java.io.Writer;
/**
* Represents a checkbox field.
* @param <T> The type of value that is expected
*/
@SuppressWarnings("hiding")
@Serialized
public class UIFormCheckBoxInput<T> extends UIFormInputBase<T>
{
/**
* Whether this checkbox is checked
*/
private boolean checked = false;
/**
* A javascript expression that will be fired when the value changes (JS onChange event)
*/
private String onchange_;
private String componentEvent_ = null;
public UIFormCheckBoxInput()
{
}
@SuppressWarnings("unchecked")
public UIFormCheckBoxInput(String name, String bindingExpression, T value)
{
super(name, bindingExpression, null);
if (value != null)
typeValue_ = (Class<T>)value.getClass();
value_ = value;
setId(name);
}
@SuppressWarnings("unchecked")
public UIFormInput setValue(T value)
{
if (value == null)
return super.setValue(value);
if (value instanceof Boolean)
{
checked = ((Boolean)value).booleanValue();
}
else if (boolean.class.isInstance(value))
{
checked = boolean.class.cast(value);
}
typeValue_ = (Class<T>)value.getClass();
return super.setValue(value);
}
public void setOnChange(String onchange)
{
onchange_ = onchange;
}
public void setComponentEvent(String com)
{
componentEvent_ = com;
}
public void setOnChange(String event, String com)
{
this.onchange_ = event;
this.componentEvent_ = com;
}
public String renderOnChangeEvent(UIForm uiForm) throws Exception
{
if (componentEvent_ == null)
return uiForm.event(onchange_, null);
return uiForm.event(onchange_, componentEvent_, (String)null);
}
final public boolean isChecked()
{
return checked;
}
final public UIFormCheckBoxInput setChecked(boolean check)
{
checked = check;
return this;
}
@SuppressWarnings("unused")
public void decode(Object input, WebuiRequestContext context) throws Exception
{
if (!isEnable())
return;
if (input == null)
checked = false;
else
checked = true;
if (typeValue_ == Boolean.class || typeValue_ == boolean.class)
{
value_ = typeValue_.cast(checked);
}
}
public void processRender(WebuiRequestContext context) throws Exception
{
Writer w = context.getWriter();
w.write("<input type='checkbox' name='");
w.write(name);
w.write("'");
w.write(" value='");
if (value_ != null)
w.write(String.valueOf(value_));
w.write("' ");
if (onchange_ != null)
{
UIForm uiForm = getAncestorOfType(UIForm.class);
w.append(" onclick=\"").append(renderOnChangeEvent(uiForm)).append("\"");
}
if (checked)
w.write(" checked ");
if (!enable_)
w.write(" disabled ");
w.write(" class='checkbox'/>");
if (this.isMandatory())
w.write(" *");
}
}