name.martingeisse.webide.application.MyHeaderResponseDecorator.java Source code

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Here is the source code for name.martingeisse.webide.application.MyHeaderResponseDecorator.java

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/**
 * Copyright (c) 2010 Martin Geisse
 *
 * This file is distributed under the terms of the MIT license.
 */

package name.martingeisse.webide.application;

import name.martingeisse.wicket.util.AjaxRequestUtil;

import org.apache.wicket.markup.head.CssHeaderItem;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.markup.html.IHeaderResponseDecorator;
import org.apache.wicket.protocol.http.WebApplication;
import org.apache.wicket.request.resource.CssResourceReference;
import org.apache.wicket.request.resource.JavaScriptResourceReference;
import org.apache.wicket.resource.CoreLibrariesContributor;

/**
 * This decorator renders a reference to common.css (and if needed, ie.css)
 * at the beginning of the header response unless we're in an AJAX request
 * (in the latter case, common.css has already been included).
 */
public class MyHeaderResponseDecorator implements IHeaderResponseDecorator {

    /* (non-Javadoc)
     * @see org.apache.wicket.markup.html.IHeaderResponseDecorator#decorate(org.apache.wicket.markup.head.IHeaderResponse)
     */
    @Override
    public IHeaderResponse decorate(final IHeaderResponse response) {
        if (AjaxRequestUtil.getAjaxRequestTarget() == null) {
            response.render(CssHeaderItem.forReference(
                    new CssResourceReference(MyHeaderResponseDecorator.class, "common.css"), null,
                    "screen, projection"));
            response.render(
                    CssHeaderItem.forReference(new CssResourceReference(MyHeaderResponseDecorator.class, "ie.css"),
                            null, "screen, projection", "IE"));
            CoreLibrariesContributor.contributeAjax(WebApplication.get(), response);
            response.render(JavaScriptHeaderItem
                    .forReference(new JavaScriptResourceReference(MyHeaderResponseDecorator.class, "common.js")));
        }
        return response;
    }

}