Examples of org.apache.wicket.markup.head.HeaderItem

org.apache.wicket.markup.head.HeaderItem
{@code HeaderItem} represents anything that can be rendered into the header. This can, forexample, be a {@linkplain JavaScriptHeaderItem script} or a {@linkplain CssHeaderItem stylesheet}, but also {@linkplain OnEventHeaderItem event triggers} or {@linkplain StringHeaderItem freeform text}. {@code HeaderItem}s are used by {@link org.apache.wicket.markup.head.ResourceAggregator} to be able to collect allheader sections in a uniform way. All {@code HeaderItem}s are expected to have decent {@code equals}, {@code hashCode} and {@code toString} (for debugging). @author papegaaij

   * bundle {a, b->a}, render [a, b], should render [ab]
   */
  @Test
  public void testBundleRenderingBoth()
  {
    HeaderItem bundleAB = Application.get()
      .getResourceBundles()
      .addJavaScriptBundle(Application.class, "ab.js", new ResourceReferenceA(),
        new ResourceReferenceB());
    aggregator.render(forReference(new ResourceReferenceA()));
    aggregator.render(forReference(new ResourceReferenceB()));

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   * bundle {a, b->a}, render [d->c->a], should render [ab, c, d]
   */
  @Test
  public void testBundleRenderedAsDependency()
  {
    HeaderItem bundleAB = Application.get()
      .getResourceBundles()
      .addJavaScriptBundle(Application.class, "ab.js", new ResourceReferenceA(),
        new ResourceReferenceB());
    aggregator.render(forReference(new ResourceReferenceD()));
    assertItems(bundleAB, forReference(new ResourceReferenceC()),

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   * bundle {c->a, d->c->a}, render [d], should render [a, cd]
   */
  @Test
  public void testBundleWithDependencies()
  {
    HeaderItem bundleCD = Application.get()
      .getResourceBundles()
      .addJavaScriptBundle(Application.class, "cd.js", new ResourceReferenceC(),
        new ResourceReferenceD());
    aggregator.render(forReference(new ResourceReferenceD()));
    assertItems(forReference(new ResourceReferenceA()), bundleCD);

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   * bundle {a, b->a} and {c->a, d->c->a}, render [d], should render [ab, cd]
   */
  @Test
  public void testTwoBundlesWithDependencies()
  {
    HeaderItem bundleAB = Application.get()
      .getResourceBundles()
      .addJavaScriptBundle(Application.class, "ab.js", new ResourceReferenceA(),
        new ResourceReferenceB());
    HeaderItem bundleCD = Application.get()
      .getResourceBundles()
      .addJavaScriptBundle(Application.class, "cd.js", new ResourceReferenceC(),
        new ResourceReferenceD());
    aggregator.render(forReference(new ResourceReferenceD()));
    assertItems(bundleAB, bundleCD);

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   * cd]
   */
  @Test
  public void testTwoBundlesWithDependenciesAndPriority()
  {
    HeaderItem bundleAB = Application.get()
      .getResourceBundles()
      .addJavaScriptBundle(Application.class, "ab.js", new ResourceReferenceA(),
        new ResourceReferenceB());
    HeaderItem bundleCD = Application.get()
      .getResourceBundles()
      .addJavaScriptBundle(Application.class, "cd.js", new ResourceReferenceC(),
        new ResourceReferenceD());
    aggregator.render(new PriorityHeaderItem(forReference(new ResourceReferenceB())));
    aggregator.render(forReference(new ResourceReferenceD()));

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   * bundle {bun1 -> x, bun2 -> y}, render [bun1], should render [x, y, bun12]
   */
  @Test
  public void testTwoResourcesWithBundleAsDependency()
  {
    HeaderItem bundle12 = Application.get()
      .getResourceBundles()
      .addJavaScriptBundle(Application.class, "bun12.js", new ResourceReferenceBun1(),
        new ResourceReferenceBun2());
    aggregator.render(forReference(new ResourceReferenceBun1()));
    assertItems(forReference(new ResourceReferenceX()), forReference(new ResourceReferenceY()),

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   * bundle {a, b -> a}, render [x, priority(a)], should render [priority(ab), x]
   */
  @Test
  public void testBundleWithPriority()
  {
    HeaderItem bundleAB = Application.get()
      .getResourceBundles()
      .addJavaScriptBundle(Application.class, "ab.js", new ResourceReferenceA(),
        new ResourceReferenceB());
    aggregator.render(forReference(new ResourceReferenceX()));
    aggregator.render(new PriorityHeaderItem(forReference(new ResourceReferenceA())));

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      super(Bootstrap.class, "js/bootstrap.js");
    }


    @Override
    public Iterable<? extends HeaderItem> getDependencies() {
      HeaderItem jquery = JavaScriptHeaderItem
          .forReference(WicketEventJQueryResourceReference.get());
      HeaderItem stylesheet = CssHeaderItem.forReference(bootstrapCss);


      return asList(jquery, stylesheet);
    }

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      super(Bootstrap.class, "js/bootstrap.js");
    }


    @Override
    public Iterable<? extends HeaderItem> getDependencies() {
      HeaderItem jquery = JavaScriptHeaderItem
          .forReference(WicketEventJQueryResourceReference.get());
      HeaderItem stylesheet = CssHeaderItem.forReference(bootstrapCss);
      HeaderItem responsive = CssHeaderItem
          .forReference(bootstrapResponsiveCss);
      return asList(jquery, stylesheet, responsive);
    }

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    super(Examples.class, "examples.js");
  }


  @Override
  public Iterable<? extends HeaderItem> getDependencies() {
    HeaderItem bootstrap = JavaScriptHeaderItem.forReference(Bootstrap
        .responsive());
    HeaderItem prettify = JavaScriptHeaderItem.forReference(Prettify.get());
    return Arrays.asList(bootstrap, prettify);
  }

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org.apache.wicket.bootstrap.Bootstrap$BootstrapResourceReference

org.apache.wicket.bootstrap.Bootstrap$BootstrapResponsiveResourceReference

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org.apache.wicket.resource.aggregator.ResourceAggregatorTest

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