| <document> |
| <body> |
| |
| <section name="Examples"> |
| |
| <p> |
| In this example, we are showing how to trigger an event from the template of a page. When the following page is rendered |
| the both instances of the component Trigger publish an arbitrary event. |
| </p> |
| |
| <subsection name="TriggerDemo.tml"> |
| <source><![CDATA[ |
| <html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_1_0.xsd"> |
| <body> |
| <h1>Trigger Demo</h1> |
| |
| <p> ... </p> |
| |
| <t:trigger event="addAdditionalScriptLinks"/> |
| |
| <p> ... </p> |
| |
| <t:trigger event="provideAdditionalMarkup"/> |
| </body> |
| </html> |
| ]]></source> |
| |
| <p> |
| Inside the handler method for the event <em>addAdditionalScriptLinks</em> we add a link to a JavaScript file. |
| The handler method for the event <em>provideAdditionalMarkup</em> provides some additional markup. |
| The MarkupWriter is passed as the event context. |
| </p> |
| |
| |
| </subsection> |
| |
| <subsection name="TriggerDemo.java"> |
| <source><![CDATA[ |
| public class TriggerDemo |
| { |
| |
| @Environmental |
| private JavaScriptSupport jsSupport; |
| |
| @Inject @Path("context:js/scripts.js") |
| private Asset scripts; |
| |
| public void onAddAdditionalScriptLinks() |
| { |
| jsSupport.importJavaScriptLibrary(scripts); |
| } |
| |
| public void onProvideAdditionalMarkup(MarkupWriter writer) |
| { |
| writer.writeRaw("Hello."); |
| } |
| } |
| ]]></source> |
| </subsection> |
| |
| </section> |
| |
| </body> |
| </document> |
