at.molindo.wicketutils.utils.JavaScriptResourceBehavior.java Source code

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Here is the source code for at.molindo.wicketutils.utils.JavaScriptResourceBehavior.java

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/**
 * Copyright 2010 Molindo GmbH
 *
 * 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 at.molindo.wicketutils.utils;

import org.apache.wicket.Component;
import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.request.resource.JavaScriptResourceReference;

public final class JavaScriptResourceBehavior extends Behavior {

    private static final long serialVersionUID = 1L;

    private final JavaScriptResourceReference _reference;

    public JavaScriptResourceBehavior(final Class<?> scope) {
        if (scope == null) {
            throw new NullPointerException("scope");
        }
        _reference = WicketUtils.js(scope);
    }

    public JavaScriptResourceBehavior(final Class<?> scope, final String name) {
        if (scope == null) {
            throw new NullPointerException("scope");
        }
        if (name == null) {
            throw new NullPointerException("name");
        }
        _reference = WicketUtils.js(scope, name);
    }

    @Override
    public void renderHead(final Component component, final IHeaderResponse response) {
        response.render(JavaScriptHeaderItem.forReference(_reference));
    }

    public JavaScriptResourceReference getResourceReference() {
        return _reference;
    }

}