net.liftweb.util.BindHelpers

FuncAttrOptionBindParam

final class FuncAttrOptionBindParam extends BindParam with BindWithAttr

BindParam that computes an optional new attribute value based on the current attribute value. Returning None in the transform function will result in the Attribute being omitted. For example, given the following markup:

<lift:AttrBinds>
  <div test:x="foo">
  <div test:y="foo">
</lift:AttrBinds>

The following snippet:

 import scala.xml._
 class AttrBinds {
   def render(xhtml : NodeSeq) : NodeSeq =
     BindHelpers.bind("test", xhtml,
       FuncAttrOptionBindParam("x", { ns : NodeSeq =>
           Some(Text(ns.text.toUpperCase + "X"))
         }, ("lift","calcId")),
       FuncAttrOptionBindParam("y", { ns : NodeSeq =>
         if (ns.text.length > 10) {
           Some(Text(ns.text.length + "Y"))
         } else {
           None
         }, ("lift","calcId")))

produces this markup:

  <div lift:calcId="FOOX" />
  <div />

Linear Supertypes
BindWithAttr, BindParam, AnyRef, Any
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  1. FuncAttrOptionBindParam
  2. BindWithAttr
  3. BindParam
  4. AnyRef
  5. Any
Visibility
  1. Public
  2. All

Instance Constructors

  1. new FuncAttrOptionBindParam(name: String, func: ⇒ (NodeSeq) ⇒ Option[NodeSeq], newAttr: String)

    name

    The name to bind against

    newAttr

    The new attribute label

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  7. def calcValue(in: NodeSeq): Option[NodeSeq]

    Definition Classes
    FuncAttrOptionBindParamBindParam
  8. def clone(): AnyRef

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  9. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  10. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  11. def finalize(): Unit

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  12. final def getClass(): java.lang.Class[_]

    Definition Classes
    AnyRef → Any
  13. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  14. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  15. val name: String

    The name to bind against

    The name to bind against

    Definition Classes
    FuncAttrOptionBindParamBindParam
  16. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  17. val newAttr: String

    The new attribute label

    The new attribute label

    Definition Classes
    FuncAttrOptionBindParamBindWithAttr
  18. final def notify(): Unit

    Definition Classes
    AnyRef
  19. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  20. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  21. def toString(): String

    Definition Classes
    AnyRef → Any
  22. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  23. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  24. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

Inherited from BindWithAttr

Inherited from BindParam

Inherited from AnyRef

Inherited from Any