JSF PrimeFaces MenuBar dropdown submenu disapearing after hover in p:layout

问题

Doing some application in JSF PrimeFaces 3.1.1 (still learning) and I implemented full page layout - Sunny (the <p:layout /> tag). Everytihng is fine, except my menu bar.

On hover on the submenu button in the menu, the dropdown submenu shows, but when I want to go by mouse to the submenu, it disappears. The only option is to change the mouse position to the submenu very fast - than it stays. And thats the problem, need it to work normally, not dissappearing.

If I put the layouts out, the menubar works well again. Also tried to copy & paste code from PF showcase, issue was the same.

Using JSF 2 on Tomcat 7.0.22.0. Here is something of my code...

The menubar in a template:

<p:layoutUnit position="north" size="130">
    <ui:insert name="top">
        <p:menubar id="mainMenu" model="#{menu.mainMenu}" />
    </ui:insert>
</p:layoutUnit>

The CSS solving overflow problems:

.ui-layout-north .ui-layout-unit-content {
    overflow: visible !important;
}

.ui-layout-north {
    z-index: 30 !important;
    overflow: visible !important;
}

Thanks for help!

回答1:

Did you happen to set a custom font size for your ui-widget? Personally, I had the following CSS setting:

.ui-widget {
    font-size: 12px !important;
}

and I experienced similar issue like yours in Firefox (but not in Chrome). Oddly enough, after increasing font-size to 13px the problem was fixed.

回答2:

The menubar works in IE or Chrome but in firefox don't show correctly you can see that in Check this with firefox a see what happen :)

I solve this problem with

    .ui-menubar .ui-menuitem-text {
    font-size: 13px!important; top: -1px;
}

回答3:

This is not ideal but it solved the problem for me:

.ui-menuitem-link
{
    max-width: 180px;
}

回答4:

Please view next link http://forum.primefaces.org/viewtopic.php?f=3&t=16597.

It's a matter of font with.

This appear also in Firefox 27 and Prime Faces 4.0 RC.

In other browsers works well.

来源：https://stackoverflow.com/questions/9557106/jsf-primefaces-menubar-dropdown-submenu-disapearing-after-hover-in-playout

标签

java

jsf

primefaces

menubar