Today I discovered a new bug in P5. When I update the button which the overlay panel is referring to, it doesn't work anymore - The overlaypanel is not shown anymore.
As a workaround I do use PF('widgetVar').loadContents(); but this feels very uncomfortable.
In PF4 this did work without any workarounds.
Anyone got some solution?
I don't know exactly what you are pointing at. What do you mean with updating the button?
For me the following code works fine with PrimeFaces 5.0:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui"
xmlns:pm="http://primefaces.org/mobile">
<h:head>
</h:head>
<h:body>
<p:commandButton id="menuButton" value="Menu" icon="ui-icon-home"/>
<p:overlayPanel for="menuButton" widgetVar="menuPanel" at="left" showEffect="push">
<!-- overlayPanel content goes here -->
</p:overlayPanel>
</h:body>
</html>
Does this help you with your problem?
来源：https://stackoverflow.com/questions/23695239/primefaces-5-overlaypanel-broken-after-update