org.apache.wicket.util.template.JavaScriptTemplate.java Source code

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Here is the source code for org.apache.wicket.util.template.JavaScriptTemplate.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.wicket.util.template;

import java.util.Map;

import org.apache.wicket.Application;
import org.apache.wicket.resource.ITextResourceCompressor;
import org.apache.wicket.core.util.string.JavaScriptUtils;

/**
 * Decorates a <code>TextTemplate</code> with JavaScript tags.
 * 
 * @author Eelco Hillenius
 * @since 1.2.6
 */
public final class JavaScriptTemplate extends TextTemplateDecorator {
    private static final long serialVersionUID = 1L;

    /**
     * Constructor.
     * 
     * @param textTemplate
     *            a <code>TextTemplate</code> to decorate
     */
    public JavaScriptTemplate(TextTemplate textTemplate) {
        super(textTemplate);
    }

    /**
     * @see org.apache.wicket.util.template.TextTemplateDecorator#getBeforeTemplateContents()
     */
    @Override
    public String getBeforeTemplateContents() {
        return JavaScriptUtils.SCRIPT_OPEN_TAG;
    }

    /**
     * @see org.apache.wicket.util.template.TextTemplateDecorator#getAfterTemplateContents()
     */
    @Override
    public String getAfterTemplateContents() {
        return JavaScriptUtils.SCRIPT_CLOSE_TAG;
    }

    /**
     * This class decorates another <code>TextTemplate</code> class and so does not allow
     * interpolation.
     * 
     * @param variables
     *            ignored
     * @return <code>this</code>, for chaining purposes
     */
    @Override
    public TextTemplate interpolate(final Map<String, ?> variables) {
        return this;
    }

    @Override
    public String getString() {
        String nonCompressed = super.getString();

        ITextResourceCompressor compressor = null;
        if (Application.exists()) {
            compressor = Application.get().getResourceSettings().getJavaScriptCompressor();
        }

        if (compressor != null) {
            return compressor.compress(nonCompressed);
        } else {
            // don't strip the comments
            return nonCompressed;
        }
    }
}