Question

I have seen many tutorials on adding html programmatically via MarkupWriter, but it adds the html where the component is used.

Is there any way to tell the writer to add it just before the closing body tag ?

Also, how can I get the body of the component ?

Answer 1

I don’t think it needs to be that complex

@Environmental
private Heartbeat heartbeat;

@SetupRender
void setupRender(MarkupWriter writer) {
    writer.element("div");
}

// let the body render as normal

@AfterRender
void afterRender(final MarkupWriter writer) {
    Element wrapper = writer.element();
    writer.end();
    final String bodyMarkup = wrapper.getChildMarkup();

    // remove the body 
    wrapper.remove();

    heartbeat.defer(new Runnable() {
        public void run() {
            Element pageBody = writer.getDocument().find("html/body");
            pageBody.raw(bodyMarkup);
        }
    });
}