radiomap.vm

2005年出版之《Beginning Java Server Pages》亚马逊书评5颗星

#*
  -- WebWork, Web Application Framework
  --
  -- Distributable under LGPL license.
  -- See terms of license at opensource.org
  --
  --
  -- radiomap.jsp
  --
  -- Required Parameters:
  --   * label     - The description that will be used to identfy the control.
  --   * name      - The name of the attribute to put and pull the result from.
  --                 Equates to the NAME parameter of the HTML tag INPUT.
  --   * list      - Iterator that will provide the options for the control.
  --                 Equates to the HTML LABEL tags.
  --   * listKey   - Where to get the values for the INPUT tag.  Equates to
  --                 the VALUE parameter of the INPUT tag.
  --   * listValue - The value displayed next to the radio control.  Equates to the body
  --                 of the enclosing HTML LABEL tag.
  --
  -- Optional Parameters:
  --   * labelposition   - determines were the label will be place in relation
  --                       to the control.  Default is to the left of the control.
  --   * disabled        - DISABLED parameter of the HTML INPUT tag.
  --   * tabindex        - tabindex parameter of the HTML INPUT tag.
  --   * onchange        - onkeyup parameter of the HTML INPUT tag.
  --
    *#
#parse("/template/xhtml/controlheader.vm")
## What I really want to do is:       #set ( $listKey = ${param.${parameters.listKey}} )
## However, velocity doesn't allow nested ${'s.  So we have to go to all this effort!
## see http://www.mail-archive.com/[e-mail]/msg09369.html for more information

#set ($param_prefix = '$param.')  ## This is because we use $param in the foreach block below
#set ($prefix_key = "$param_prefix$parameters.listKey")
#set ($prefix_value = "$param_prefix$parameters.listValue")

#foreach( $param in $parameters.list )
#set ($listKey = $webwork.evaluate("$prefix_key"))
#set ($listValue = $webwork.evaluate("$prefix_value"))

    <label>$!listValue</label>
    <input type="radio"
        #if ($parameters.nameValue == $listKey) checked="checked"   #end
        #if ($parameters.name)      name="$parameters.name"         #end
        #if ($listKey)              value="$!listKey"               #end
        #if ($parameters.disabled)  disabled="disabled"             #end
        #if ($parameters.tabindex)  tabindex="$parameters.tabindex" #end
        #if ($parameters.onchange)  onchange="$parameters.onchange" #end
    />
#end
#parse("/template/xhtml/controlfooter.vm")