Lift Framework example source code file (FormProcessor.scala)

This example Lift Framework source code file (FormProcessor.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Lift Framework tags/keywords

boolean, boolean, boolean,boolean=, boolean=, elem, elem, formprocessor, full, nodeseq, nodeseq, string, string, string,string=, unit

The Lift Framework FormProcessor.scala source code

/*
 * Copyright 2009-2011 WorldWide Conferencing, LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.liftweb 
package mapper 
package view 

import scala.xml.{Group, Elem, NodeSeq}
import scala.collection.mutable.{Map => mMap}

import net.liftweb.http.SHtml
import net.liftweb.util.{Helpers}
import net.liftweb.common.{Full, Empty}


/**
 * This class can be used to act on all submitted values in one block of code.
 * This enables one to use try/catch when setting values etc.
 * @author nafg
 */
abstract class FormProcessor(prefix: String) {

  def text(attrs: SHtml.ElemAttr*)(init: String, action: String=>Unit) = SHtml.text(init, action, attrs:_*)
  def text: (String,String=>Unit)=>NodeSeq  = text()_
  def checkbox(attrs: SHtml.ElemAttr*)(init: Boolean, action: Boolean=>Unit) = SHtml.checkbox(init, action, (attrs: Seq[SHtml.ElemAttr]):_*)
  def checkbox: (Boolean, Boolean=>Unit)=>NodeSeq = checkbox()_

  val stringValues: mMap[String, String] = mMap.empty[String, String]
  val strings = mMap.empty[String, (String,String=>Unit)=>NodeSeq]

  val booleanValues = mMap.empty[String, Boolean]
  val booleans = mMap.empty[String, (Boolean,Boolean=>Unit)=>NodeSeq]




  def bind(xhtml: NodeSeq) = {
    def transform(node: NodeSeq): NodeSeq = {
      put
      node match {
        case Elem(`prefix`, label, _, _, _*) if strings.keys.toIterator contains label =>
          strings(label)(stringValues(label), stringValues(label) = _)
        case Elem(`prefix`, label, _, _, _*) if booleans.keys.toIterator contains label =>
          booleans(label)(booleanValues(label), booleanValues(label) = _)
       case other => other
      }
    }
    Helpers.bind(prefix, Full(transform _), Empty, xhtml) ++
      Seq(SHtml.hidden(()=>get))

  }


  def put: Unit
  def get: Unit
}