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Lift Framework example source code file (Loc.scala)

This example Lift Framework source code file (Loc.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

dispatchit, dispatchit, dispatchsnippet, dispatchsnippet, elem, elem, full, loc, nodeseq, nodeseq, string

The Lift Framework Loc.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 builtin
package snippet

import scala.xml._
import net.liftweb.http._
import net.liftweb.common._

/**
 * The Loc snippet is used to render localized content.
 *
 * Lookup resource with the id specified with the locid attribute. Will also try to
 * use the render method or the snippet body as locid if not specified.
 *
 * So these are equivalent:
 * 
 *   <lift:Loc locid="myid"/>
 *   <lift.Loc.myid/>
 *   <lift:Loc>myid
 *
 * There's a special case with the "i" method. It will use the text content as the locid, and will
 * replace the child node with the localized content instead of the current element.
 *
 * This is especially useful together with designer friendly snippet markup:
 *
 * <h2 class="lift:Loc.i">Some header
 *
 * If the locid "Some header" for the current locale is e.g "En overskrift", this will render
 *
 * <h2>En overskrift
 *
 * If the locid is not found, it will just render
 * 
 * <h2>Some header
 * 
 */
object Loc extends DispatchSnippet {
  def dispatch : DispatchIt = {
    case "i" => ns => i(ns)
    case s => ns => render(s, ns)
  }

  def i(ns: NodeSeq): NodeSeq = {
    ns match {
      case Elem(prefix, label, attribs, scope, child @ _*) => Elem(prefix, label, attribs, scope, S.loc(ns.text, Text(ns.text)): _*)
      case _ => render("i", ns)
    }
  }
     
  def render(locId: String, kids: NodeSeq) : NodeSeq = {
    S.loc(locId) openOr 
    (S.attr("locid") match {
      case Full(id) => S.loc(id, kids)
      case _ => S.loc(kids.text, kids)
    })
  }

}

Other Lift Framework examples (source code examples)

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