I have a trick. I am using this JQuery function :
$(document).ready(function(){
$('.ui-picklist-target .ui-picklist-item td').click(function() {
var id = $(this).closest("li").attr("data-item-value");
$('[id$=selectedItemId]').val(id); // Setting the value of my hidden input
updateSelectedTarget(); // Calling the remoteCommand function
});
});
I have added this to my xhtml page
<h:form>
...
<p:pickList ...>
</p:pickList>
<h:inputHidden id="selectedItemId" value="#{modifierUOBean.selectedTargetId}"/>
<p:remoteCommand name="updateSelectedTarget" actionListener="#{modifierUOBean.onSelectedTarget}"/>
</h:form>
And the bean:
private int selectedTargetId; // and getters and setters
public void onSelectedTarget() {
// Do what you want with selectedTargetId which contains the id of selected item
}