I need to implement (vertical slide in) sh开发者_如何转开发ow effect on a output panel when there is a focus on a textbox. (Initially the outputPanel should not be visible on screen, but when there is a focus on the input box, the outputPanel must show up with a slide in effect.)

    <p:inputTextarea>
        <p:effect event="focus" for="inputPanel" type="slide"/>
    </p:inputTextarea>

    <p:outputPanel id="inputPanel" style="display: none;" >
        ......
    </p:outputPanel>

Using:

Primefaces 3.0 M3 Snapshot

JSF 2.0 with Facelets

You can find the PrimeFaces guide here.

Use f:param to provide parameters to configure the animation.

Check this JQuery Docs to learn about the parameters for the effects.

<p:inputTextarea>
    <p:effect event="focus" for="inputPanel" type="slide">
        <f:param name="mode" value="'show'" />
        <f:param name="direction" value="'up'" />
    </p:effect>
    <p:effect event="blur" for="inputPanel" type="slide">
        <f:param name="mode" value="'hide'" />
        <f:param name="direction" value="'up'" />
    </p:effect>
</p:inputTextarea>

<p:outputPanel id="inputPanel" layout="block" style="width: 400px; height: 200px; display: none;">
    <p:panel header="Panel inside OutputPanel" >
        <h1>Applying effect on output-panel.</h1>
    </p:panel>
</p:outputPanel>

Also for the <p:outputPanel specify the attribute layout with the value of "block" to make PrimeFaces render a DIV instead of SPAN because the default value for layout attribute is "inline".