Making a component draggable

Any component can be enhanced with the draggable behavior. To enable the draggable functionality on any PrimeFaces component, we always need a component called draggable.

In this recipe, we will see how to make a component draggable and learn some basic features of draggable. To demonstrate these features, we will make several p:panel components draggable.

How to do it…

A component can be made draggable by using p:draggable. The value of the for attribute specifies a search expression for the draggable target. In our case, it matches the ID of p:panel.

Tip

Chapter 1, Getting Started with PrimeFaces, provides more details on search expressions.

If the for attribute is omitted, the parent component will be selected as a draggable target. Let us make some panel components draggable and apply some basic features:

<p:panel id="pnl" header="Draggable panel with default settings">
  Drag me around
</p:panel>
<p:draggable for="pnl"/>

<p:panel id="hpnl...