tobago-example/tobago-example-demo/src/main/webapp/content/30-concept/18-websocket/WebSocket.xhtml

<?xml version="1.0" encoding="UTF-8"?>

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<ui:composition template="/main.xhtml"
                xmlns="http://www.w3.org/1999/xhtml"
                xmlns:f="http://xmlns.jcp.org/jsf/core"
                xmlns:tc="http://myfaces.apache.org/tobago/component"
                xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
  <p>Simple example for WebSockets.</p>

  <tc:section label="Example">
    <p><tc:badge value="Warning" markup="warning"/> CSP script-src: 'unsafe-inline' is needed.</p>

    <tc:script file="#{request.contextPath}/content/30-concept/18-websocket/WebSocket.js"/>
    <f:websocket channel="clock" onmessage="websocketListener"/>

    <tc:buttons>
      <tc:button label="Start Clock" action="#{webSocketController.startClock}">
        <f:ajax/>
      </tc:button>
      <tc:button label="Stop Clock" action="#{webSocketController.stopClock}">
        <f:ajax/>
      </tc:button>
    </tc:buttons>

    <tc:separator/>
    <div id="clockId"></div>
  </tc:section>
</ui:composition>