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PODecorator Component in Wicket
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  1. PODecorator Component in Wicket
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    copied!<p>Is it possible to implement some kind of decorator component in wicket ? Specially while honoring the id of the decorated component ?</p> <p>Currently i try to solve this using a Border Component acting as a decorator:</p> <p>Given:</p> <pre><code>public XXXPage() { MyBorder border = new MyBorder("xxx"); border.add( new Label("xxx", "Foo") ); // label just as simplification. Its really a Component that we want to surround the anchor (linkify) around. add(border); } </code></pre> <p>XXXPage.html</p> <pre><code>&lt;body&gt; &lt;span wicket:id="xxx"/&gt; &lt;/body&gt; </code></pre> <p>MyBorder.html</p> <pre><code>&lt;wicket:border&gt; &lt;a wicket:id="link"&gt;&lt;wicket:body/&gt;&lt;/a&gt; &lt;/wicket:border&gt; </code></pre> <p>MyBorder.java</p> <pre><code>public MyBorder(String id) { super(id); AjaxLink link = new AjaxLink("link") { @Override public void onClick(AjaxRequestTarget arg0) { } }; add(link); link.add(getBodyContainer()); // from javadoc of Wicket's Border } </code></pre> <p>Gives:</p> <pre><code>org.apache.wicket.WicketRuntimeException: The component(s) below failed to render. A common problem is that you have added a component in code but forgot to reference it in the markup (thus the component will never be rendered). 1. [Component id = xxx] at org.apache.wicket.Page.checkRendering(Page.java:1182) </code></pre> <p>So in essence, the xxx component should be wrapped in a transparent manner with a link component. This xxx is out of control.</p> <p>In a "banana wicket" implementation this would be a possible pseudo code:</p> <pre><code>Component wrapWithAction(Component a) { // now wrap Link b = new Link() { // handle link onClick and all that } b.wrap(a); return b; } // </code></pre>
 

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