RELEASE_2_1_13/src/blocks/forms/samples/xsl/xhr_carfilter.xsl

<?xml version="1.0"?>
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  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You 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

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  See the License for the specific language governing permissions and
  limitations under the License.
-->
<xsl:stylesheet
  version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:fd="http://apache.org/cocoon/forms/1.0#definition">

  <xsl:param name="list"/>
  <xsl:param name="make"/>
  <xsl:param name="type"/>

  <xsl:template match="/">
    <xsl:choose>
      <xsl:when test="$list = 'makes'">
        <xsl:call-template name="makes-list"/>
      </xsl:when>
      <xsl:when test="$list = 'models'">
        <xsl:call-template name="models-list"/>
      </xsl:when>
      <xsl:otherwise>
        <xsl:call-template name="types-list"/>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>

  <xsl:template name="makes-list">
    <fd:selection-list>
      <fd:item value="">
        <fd:label>-- Choose maker --</fd:label>
      </fd:item>
      <xsl:for-each select="cars/make">
        <fd:item value="{@name}"/>
      </xsl:for-each>
    </fd:selection-list>
  </xsl:template>

  <xsl:template name="types-list">
    <select>
      <option value="">-- Choose type --</option>
      <xsl:for-each select="cars/make[@name=$make]/type">
        <option value="{@name}"/>
      </xsl:for-each>
    </select>
  </xsl:template>

  <xsl:template name="models-list">
    <select>
      <option value="">-- Choose model --</option>
      <xsl:choose>
        <xsl:when test="cars/make[@name=$make]/type[@name=$type]/model">
          <xsl:for-each select="cars/make[@name=$make]/type[@name=$type]/model">
            <option value="{@name}"/>
          </xsl:for-each>
        </xsl:when>
        <xsl:otherwise>
          <!-- dummy list -->
          <option value="{$type} model 1"/>
          <option value="{$type} model 2"/>
          <option value="{$type} model 3"/>
          <option value="{$type} model 4"/>
          <option value="{$type} model 5"/>
        </xsl:otherwise>
      </xsl:choose>
    </select>
  </xsl:template>

</xsl:stylesheet>