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/*
* Copyright 2007-2010 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 example {
package snippet {
import _root_.net.liftweb.example.model._
import _root_.net.liftweb.http._
import _root_.net.liftweb.http.S
import _root_.net.liftweb.mapper._
import _root_.net.liftweb.http.S._
import _root_.net.liftweb.http.SHtml._
import _root_.net.liftweb.util.Helpers._
import _root_.net.liftweb.common._
import _root_.net.liftweb.util._
import _root_.scala.xml.{NodeSeq, Text, Group}
/**
* The Arc Challenge is Paul Graham's quest for web framework concision.
*
* http://www.paulgraham.com/arcchallenge.html
*
* This is one potential lift-based solution to it using StatefulSnippets.
* There are doubtless many other ways.
*
* @author: Steve Jenson
*/
class SimpleWizard extends StatefulSnippet {
val fromWhence = S.referer openOr "/"
var dispatch: DispatchIt = {case _ => xhtml => pageOne}
var name = ""
var quest = ""
var color = ""
private def template(name: String, f: NodeSeq => NodeSeq): NodeSeq =
TemplateFinder.
findAnyTemplate(List("templating") ::: List(name)).map(f) openOr
NodeSeq.Empty
/**
* pageOne -- Ask the name
*/
def pageOne = {
def validate() {
this.registerThisSnippet()
if (name.length < 2) S.error(S.?("Name too short"))
else dispatch = {case _ => xhtml => pageTwo}
}
template("pageOne",
("#name" replaceWith text(name, name = _)) &
("#submit" replaceWith submit(S ? "Next", validate)))
}
/**
* pageTwo -- Ask the quest
*/
def pageTwo = {
def validate() {
this.registerThisSnippet()
if (quest.length < 2) S.error(S.?("Quest too short"))
else dispatch = {case _ => xhtml => pageThree}
}
template("pageTwo",
("#quest" replaceWith text(quest, quest = _)) &
("#submit" replaceWith submit(S ? "Next", validate)))
}
/**
* pageThree -- Ask the color
*/
def pageThree = {
def validate() {
this.registerThisSnippet()
if (!List("red", "yellow", "blue").contains(color.toLowerCase)) S.error(S.?("Color not red, yellow or blue"))
else {
S.notice("You, "+name+" on the quest "+quest+" may cross the bridge of sorrows")
S.redirectTo(fromWhence)
}
}
template("pageThree",
("#color" replaceWith text(color, color = _)) &
("#submit" replaceWith submit(S ? "Finish", validate)))
}
}
}
}
}
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