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

org.apache.wicket.markup.head.IHeaderResponse
Interface that is used to render header elements (usually javascript and CSS references). Implementation of this interface is responsible for filtering duplicate contributions (so that for example the same javascript is not loaded twice) during the same request. @author Matej Knopp

  }


  @Test
  public void shouldAddDefaultCssToResponse()
  {
    IHeaderResponse response = mock(IHeaderResponse.class);


    tooltip.renderHead(component, response);


    verify(response, times(1)).render(
      Mockito.eq(CssReferenceHeaderItem.forReference(tooltip.uiTooltipCss_1_10_3)));

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  }


  @Test
  public void shouldAddCustomCssToResponse()
  {
    IHeaderResponse response = mock(IHeaderResponse.class);
    CssResourceReference customCssResourceReference = new CssResourceReference(
      JQueryUiTooltip.class, "test.css");


    tooltip.addCssResource(customCssResourceReference);
    tooltip.renderHead(component, response);

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  @SuppressWarnings("static-access")
  @Test
  public void shouldAvoidAddingCssToResponseMultipleTimes()
  {
    IHeaderResponse response = mock(IHeaderResponse.class);
    CssResourceReference customCssResourceReference = new CssResourceReference(
      JQueryUiTooltip.class, "test.css");


    tooltip.renderHead(component, response);
    tooltip.addCssResource(customCssResourceReference);

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  @SuppressWarnings("static-access")
  @Test
  public void shouldNotAddCssToResponse()
  {
    IHeaderResponse response = mock(IHeaderResponse.class);
    CssResourceReference customCssResourceReference = new CssResourceReference(
      JQueryUiTooltip.class, "test.css");


    tooltip.addCssResource(customCssResourceReference);
    tooltip.withoutCss();

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  }


  @Test
  public void shouldBuildTheJQuerySelector()
  {
    IHeaderResponse response = mock(IHeaderResponse.class);


    tooltip.renderHead(component, response);


    verify(widget).buildJS("'#" + component.getMarkupId() + "'");
  }

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      if (log.isDebugEnabled())
      {
        log.debug("renderHead: {}", toString(false));
      }


      IHeaderResponse response = container.getHeaderResponse();


      // Allow component to contribute
      if (response.wasRendered(this) == false)
      {
        StringResponse markupHeaderResponse = new StringResponse();
        Response oldResponse = getResponse();
        RequestCycle.get().setResponse(markupHeaderResponse);
        try
        {
          // Make sure the markup source strategy contributes to the header first
          // to be backward compatible. WICKET-3761
          getMarkupSourcingStrategy().renderHead(this, container);
          CharSequence headerContribution = markupHeaderResponse.getBuffer();
          if (Strings.isEmpty(headerContribution) == false)
          {
            response.render(StringHeaderItem.forString(headerContribution));
          }
        }
        finally
        {
          RequestCycle.get().setResponse(oldResponse);
        }
        // Then let the component itself to contribute to the header
        renderHead(this, response);


        response.markRendered(this);
      }


      // Than ask all behaviors
      for (Behavior behavior : getBehaviors())
      {
        if (isBehaviorAccepted(behavior))
        {
          if (response.wasRendered(behavior) == false)
          {
            behavior.renderHead(this, response);
            response.markRendered(behavior);
          }
        }
      }
    }
  }

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   *            the response Wicket created
   * @return the response Wicket should use in IHeaderContributor traversal
   */
  public final IHeaderResponse decorateHeaderResponse(final IHeaderResponse response)
  {
    final IHeaderResponse aggregatingResponse = new ResourceAggregator(response);


    if (headerResponseDecorator == null)
    {
      return aggregatingResponse;
    }

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      if (log.isDebugEnabled())
      {
        log.debug("renderHead: {}", toString(false));
      }


      IHeaderResponse response = container.getHeaderResponse();


      // Allow component to contribute
      if (response.wasRendered(this) == false)
      {
        StringResponse markupHeaderResponse = new StringResponse();
        Response oldResponse = getResponse();
        RequestCycle.get().setResponse(markupHeaderResponse);
        try
        {
          // Make sure the markup source strategy contributes to the header first
          // to be backward compatible. WICKET-3761
          getMarkupSourcingStrategy().renderHead(this, container);
          CharSequence headerContribution = markupHeaderResponse.getBuffer();
          if (Strings.isEmpty(headerContribution) == false)
          {
            response.render(StringHeaderItem.forString(headerContribution));
          }
        }
        finally
        {
          RequestCycle.get().setResponse(oldResponse);
        }
        // Then let the component itself to contribute to the header
        renderHead(this, response);


        response.markRendered(this);
      }


      // Then ask all behaviors
      for (Behavior behavior : getBehaviors())
      {
        if (isBehaviorAccepted(behavior))
        {
          if (response.wasRendered(behavior) == false)
          {
            behavior.renderHead(this, response);
            List<IClusterable> pair = Arrays.asList(this, behavior);
            response.markRendered(pair);
          }
        }
      }
    }
  }

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   *            the response Wicket created
   * @return the response Wicket should use in IHeaderContributor traversal
   */
  public final IHeaderResponse decorateHeaderResponse(final IHeaderResponse response)
  {
    final IHeaderResponse aggregatingResponse = new ResourceAggregator(response);


    if (headerResponseDecorator == null)
    {
      return aggregatingResponse;
    }

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org.apache.wicket.Component

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org.apache.wicket.markup.html.internal.HtmlHeaderContainer

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