jp.xet.uncommons.wicket.behavior.CssClassAppender.java Source code

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Here is the source code for jp.xet.uncommons.wicket.behavior.CssClassAppender.java

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/*
 * Copyright 2011 Daisuke Miyamoto.
 * Created on 2011/10/01
 *
 * 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 jp.xet.uncommons.wicket.behavior;

import org.apache.wicket.Component;
import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.util.lang.Args;

/**
 * ???????CSS?
 * 
 * @since 1.0
 * @version $Id: CssClassAppender.java 104 2011-10-02 14:10:48Z daisuke $
 * @author daisuke
 */
@SuppressWarnings("serial")
public class CssClassAppender extends Behavior {

    private final String cssClass;

    /**
     * ??
     * 
     * @param cssClass ???
     * @throws NullPointerException ?{@code null}???
     */
    public CssClassAppender(String cssClass) {
        Args.notNull(cssClass, "cssClass");
        this.cssClass = cssClass;
    }

    @Override
    public boolean isTemporary(Component component) {
        return true;
    }

    @Override
    public void onComponentTag(Component component, ComponentTag tag) {
        super.onComponentTag(component, tag);
        tag.append("class", cssClass, " ");
    }
}