/*
 * Copyright 2011-2012 Tomas Zeman <tzeman@volny.cz>
 *
 * 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 fis.base.ui

import net.liftweb.http.Templates
import net.liftweb.util._
import net.liftweb.util.Helpers._ // CSS transforms
import scala.xml.NodeSeq

/**
 * Template driven table, compatible w/ datatables.net.
 * Template location: <code>/templates-hidden/datatable</code>.
 */
trait FieldTable[T] {
  protected def load: NodeSeq =
    Templates(List("templates-hidden", "datatable")) openOr NodeSeq.Empty

  protected def cols(cs: Iterable[ReadableField]) =
    ".field-name *" #> (cs map(_.displayName))

  protected def cells(cs: Iterable[T]) =
    ".r" #> cs.map { v => "td *" #> (fields(v) map { _.asHtml }) }

  protected def fields(v: T): Iterable[ReadableField]

  protected def build(header: T, rows: Iterable[T]): NodeSeq =
    (cols(fields(header)) & cells(rows))(load)
}

// vim: set ts=2 sw=2 et: