Examples with PageHeaderItem - org.apache.wicket.markup.head.PageHeaderItem

Example 1 with PageHeaderItem

use of org.apache.wicket.markup.head.PageHeaderItem in project wicket by apache.

the class HtmlHeaderContainer method renderHeaderTagBody.

/**
 * Renders the content of the &lt;head&gt; section of the page, including &lt;wicket:head&gt;
 * sections in subclasses of the page. For every child-component, the content is rendered to a
 * string and passed to {@link IHeaderResponse}.
 *
 * @param headerStreamState
 */
public void renderHeaderTagBody(HeaderStreamState headerStreamState) {
    if (headerStreamState == null)
        return;
    final Response oldResponse = getRequestCycle().getResponse();
    try {
        // Create a separate (string) response for the header container itself
        final StringResponse bodyResponse = new StringResponse();
        getRequestCycle().setResponse(bodyResponse);
        // render the header section directly associated with the markup
        super.onComponentTagBody(headerStreamState.getMarkupStream(), headerStreamState.getOpenTag());
        CharSequence bodyOutput = getCleanResponse(bodyResponse);
        if (bodyOutput.length() > 0) {
            getHeaderResponse().render(new PageHeaderItem(bodyOutput));
        }
    } finally {
        getRequestCycle().setResponse(oldResponse);
    }
}

Also used : HeaderResponse(org.apache.wicket.markup.head.internal.HeaderResponse) IHeaderResponse(org.apache.wicket.markup.head.IHeaderResponse) StringResponse(org.apache.wicket.response.StringResponse) Response(org.apache.wicket.request.Response) StringResponse(org.apache.wicket.response.StringResponse) PageHeaderItem(org.apache.wicket.markup.head.PageHeaderItem)

Aggregations

IHeaderResponse (org.apache.wicket.markup.head.IHeaderResponse)1 PageHeaderItem (org.apache.wicket.markup.head.PageHeaderItem)1 HeaderResponse (org.apache.wicket.markup.head.internal.HeaderResponse)1 Response (org.apache.wicket.request.Response)1 StringResponse (org.apache.wicket.response.StringResponse)1