jsf - How to Block UI based on method value -


i need in blocking form based on returned value method updatedatatable return "yes", if commandbutton "print" fired. if fired, need block ui on close of dialog, otherwise not block it. code , blocking each time, closing dialog:

<p:dialog id="ss" header="sss" widgetvar="ss" modal="true" showeffect="fade"         hideeffect="fade" resizable="false" >     <p:ajax event="close" listener="#{hrd.updatedatatable}"/>     <p:blockui trigger="ss" block=":requests">         <p:graphicimage width="50" value="/resources/images/ajax.gif">         </p:graphicimage>     </p:blockui> <<p:commandbutton value="print" id="print" actionlistener="#{hrd.updateprint}"/> </p:dialog>

remove trigger , add widgetvar p:blockui component able trigger directly.

<p:blockui block=":requests" widgetvar="blockuivar">

have print button set global js variable.

<p:commandbutton value="print" id="print" actionlistener="#{hrd.updateprint}"     onclick="window.printclicked = true;"/>

check variable state , trigger ui block if necessary @ start of close request. reset variable state in case dialog reopened.

<p:ajax event="close" listener="#{hrd.updatedatatable}"     onstart="if (window.printclicked) { pf('blockuivar').show(); window.printclicked = false; }"/>

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