Introducing dialog framework

PrimeFaces 4.0 introduces a new dialog framework, which can be used to generate dynamic dialog components at runtime with the content from any external facelets page.

In order to use a dialog framework, first we need to configure DialogActionListener, DialogNavigationHandler, and DialogViewHandler in faces-config.xml as follows:

<faces-config ...>
  <application>
    <action-listener>
    org.primefaces.application.DialogActionListener
  </action-listener>
    <navigation-handler>
    org.primefaces.application.DialogNavigationHandler
  </navigation-handler>
    <view-handler>
    org.primefaces.application.DialogViewHandler
  </view-handler>
  </application>
</faces-config>

We can use the RequestContext.openDialog() and RequestContext.closeDialog() methods to open and close the dialog components.