src/main/scala/net/datatables/DataTables.scala
changeset 77 8f0eddd7aa85
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/scala/net/datatables/DataTables.scala	Tue Apr 24 16:42:34 2012 +0200
@@ -0,0 +1,96 @@
+/*
+ * Copyright 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 net.datatables
+
+import fis.base.ui._
+import net.liftweb.http._
+import net.liftweb.http.js._
+import net.liftweb.http.js.JE._
+import net.liftweb.http.js.JsCmds._
+import net.liftweb.http.js.jquery._
+import net.liftweb.http.js.jquery.JqJE._
+import net.liftweb.http.js.jquery.JqJsCmds._
+import net.liftweb.json._
+import net.liftweb.json.Extraction._
+import net.liftweb.record.RecordHelpers._
+import net.liftweb.sitemap.Loc.Snippet
+import net.liftweb.util._
+import net.liftweb.util.Helpers._
+import net.tz.lift.snippet._
+import scala.xml.NodeSeq
+
+/**
+ * datatables.net typesafe datatable.
+ */
+object DataTables {
+
+  def init() {
+    LiftRules.snippets.append {
+      case List("datatables") => { _ => initHeader(loadTpl) }
+    }
+  }
+
+  protected def loadTpl = 
+    Templates(List("templates-hidden", "datatables")) openOr NodeSeq.Empty
+
+  protected def initHeader: CssTr = {
+    val rows = Props.getInt("datatables.rows") map { i =>
+      SetExp(JsVar("$.fn.dataTable.defaults.iDisplayLength"), i) }
+    val lang = Props.get("datatables.lang." + CurLanguage.getLanguage) map { l =>
+      SetExp(JsVar("$.fn.dataTable.defaults.oLanguage.sUrl"), l) }
+    "#datatables-defaults" #> Script((rows ++ lang) toSeq)
+  }
+
+  def onLoad(selector: String, opts: Options): NodeSeq = {
+    val s = Script(JqOnLoad(jsRender(selector, opts)))
+    <head>
+      {s}
+    </head>
+  }
+
+  def jsRender(selector: String, opts: Options): JsExp =
+    JqId(selector) ~> fun(opts)
+
+  private def fun(opts: Options): JsMember = 
+    new JsRaw("dataTable(%s);".format(opt2js(opts).toJsCmd)) with JsMember
+
+  private def opt2js(opts: Options): JsExp = {
+    implicit val formats = DefaultFormats
+    decompose(opts)
+  }
+
+  case class Options(oLanguage: Option[Language], aoColumnDefs: List[ColumnDef])
+  {
+    def lang(l: Language) = this.copy(oLanguage = Some(l))
+    def col(c: ColumnDef) = this.copy(aoColumnDefs = c :: aoColumnDefs)
+  }
+  object Options extends Options(None, Nil)
+
+  case class Language(sUrl: Option[String]) {
+    def url(url: String) = this.copy(sUrl = Some(url))
+  }
+  object Language extends Language(None)
+
+  case class ColumnDef(sType: Option[String], aTargets: List[Int]) {
+    def dtype(t: String) = this.copy(sType = Some(t))
+    def dtype(t: Symbol) = this.copy(sType = Some(t.name))
+    def target(i: Int) = this.copy(aTargets = i :: aTargets)
+  }
+  object ColumnDef extends ColumnDef(None, Nil)
+
+  val TYPE_EU_DATE = 'eu_date
+}
+// vim: set ts=2 sw=2 et: