Package org.springmodules.xt.ajax.component

Source Code of org.springmodules.xt.ajax.component.Option

/*
* Copyright 2006 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License 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 License for the specific language governing permissions and
* limitations under the License.
*/

package org.springmodules.xt.ajax.component;

import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;

/**
* Component implementing an option element.
*
* @author Sergio Bossa
* @author Peter Bona
*/
public class Option extends SimpleHTMLComponent {
   
    private static final long serialVersionUID = 26L;
   
    private boolean selected;
   
    /**
     * Construct the option.
     *
     * @param value The option value.
     * @param content The option content.
     */
    public Option(String value, String content) {
        super();
        this.addAttribute("value", value);
        this.internalAddContent(new SimpleText(content));
    }
   
    /**
     * Construct the option.
     *
     * @param optionObject The object containing the value and content for this option.
     * @param valueProperty The JavaBean property which will be retrieved from the object for setting the value of the option: there must be
     * a standard JavaBean getter for this property.
     * @param contentProperty The JavaBean property which will be retrieved from the object for setting the content of the option: there must be
     * a standard JavaBean getter for this property.
     */
    public Option(Object optionObject, String valueProperty, String contentProperty) {
        if (optionObject != null) {
            BeanWrapper wrapper = new BeanWrapperImpl(optionObject);
           
            Object tmp = wrapper.getPropertyValue(valueProperty);
            if (tmp != null) {
                this.addAttribute("value", tmp.toString());
            }
            else {
                this.addAttribute("value", "");
            }
           
            tmp = wrapper.getPropertyValue(contentProperty);
            if (tmp != null) {
                this.internalAddContent(new SimpleText(tmp.toString()));
            }
            else {
                this.internalAddContent(new SimpleText(""));
            }
        }
        else {
            throw new IllegalArgumentException("The object to render in the option component cannot be null!");
        }
    }
   
    /**
     * Check if this option is selected.
     */
    public boolean getSelected() {
        return this.selected;
    }
   
    /**
     * Set this option as selected.
     */
    public void setSelected(boolean selected) {
        this.selected = selected;
        this.addAttribute("selected", Boolean.toString(selected));
    }
   
    protected String getTagName() {
        return "option";
    }
}
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