PrimeFaces 4.0: Dialog.show() has no effect

Question

I have a dialog thus:

        <p:dialog id="pinDialog" widgetVar="pinDialog" width="800" binding="#{userBean.pinCheckDialog}" closable="false" modal="true" closeOnEscape="false" showEffect="clip" hideEffect="clip">
            <h:form id="pinEntry">
                <p:messages for="messagesForPinCheck"/>
                <p:outputLabel for="pinCode" value="#{messages.PinCodeRequired}"/>
                <p:inputText value="#{userBean.enteredPin}" size="4" id="pinCode"/>
                <p:commandButton value="#{messages.PinCodeSubmit}" update="@form" action="#{userBean.submitPin()}"/>
            </h:form>
        </p:dialog>

And within a idleMonitor I am calling active() and idle() on the userBean . If the user goes idle and other conditions hold true I want to show the pinDialog :

        if (isPinRequired()) {
            logger.debug("pin required, attempting to show pin dialog");
            RequestContext.getCurrentInstance().execute("pinDialog.show()");
        }

The log message appears, but nothing happens on screen. I have also tried PF('pinDialog').show without success. What am I doing wrong?

Answer 1

If you want to show a dialog at another time besides page load, then you will want to use the 'render' attribute on the dialog form.

<p:panelGroup id="mainPanel">
   <p:dialog rendered="#{myBean.showForm}"
   </p:dialog>
</p:panelGroup>

Where showForm is a boolean function in your backing bean returning false normally.

Without the outside p:panelGroup and p:dialog normally rendering false, it would never show up even when render was set to true.