Add CSS bound LiftScreen

web/webkit/src/main/scala/net/liftweb/http/CssBoundLiftScreen.scala

@@ -0,0 +1,92 @@
+/*
+ * Copyright 2011-2012 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 http
+
+import net.liftweb.http.js.JsCmds._
+import net.liftweb.http.js.JsCmd
+import net.liftweb.common._
+import util._
+
+import xml._
+
+trait CssBoundLiftScreen extends LiftScreen with CssBoundScreen {
+  protected object SavedDefaultXml extends ScreenVar[NodeSeq](defaultXml) {
+    override lazy val __nameSalt = Helpers.nextFuncName
+  }
+
+  protected object LocalAction extends TransientRequestVar[String]("") {
+    override lazy val __nameSalt = Helpers.nextFuncName
+  }
+
+  protected object LocalActionRef extends ScreenVar[String](S.fmapFunc(setLocalAction _)(s => s)) {
+    override lazy val __nameSalt = Helpers.nextFuncName
+  }
+
+  protected object PrevId extends TransientRequestVar[Box[String]](Empty) {
+    override lazy val __nameSalt = Helpers.nextFuncName
+  }
+
+  protected object CancelId extends TransientRequestVar[String]("") {
+    override lazy val __nameSalt = Helpers.nextFuncName
+  }
+
+  protected object LocalActions extends ScreenVar[Map[String, () => JsCmd]](Map[String, () => JsCmd]()) {
+    override lazy val __nameSalt = Helpers.nextFuncName
+  }
+
+  override def localSetup() {
+    SavedDefaultXml.get
+    LocalActionRef.get
+  }
+
+  override def allTemplate = SavedDefaultXml.get
+
+  protected def defaultAllTemplate = super.allTemplate
+
+  override protected def doFinish(): JsCmd= {
+    val fMap: Map[String, () => JsCmd] = LocalActions.get
+    if (! LocalAction.get.isEmpty)
+      fMap.get(LocalAction.get) map (_()) getOrElse (
+        throw new IllegalArgumentException("No local action available with that binding"))
+    else {
+      validate match {
+        case Nil =>
+          val snapshot = createSnapshot
+          PrevSnapshot.set(Full(snapshot))
+          finish()
+          redirectBack()
+        case xs => {
+          S.error(xs)
+          if (ajaxForms_?) {
+            replayForm
+          } else {
+            Noop
+          }
+        }
+      }
+    }
+  }
+
+  protected def renderWithErrors(errors: List[FieldError]) {
+    S.error(errors)
+    AjaxOnDone.set(replayForm)
+  }
+
+  protected def renderFormCmd: JsCmd = SetHtml(FormGUID, renderHtml())
+
+  protected def replayForm: JsCmd = renderFormCmd
+}