t2v · TimFoerster · Dec 20, 2016 · Dec 20, 2016 · Dec 20, 2016 · Dec 20, 2016
diff --git a/sample/app/controllers/Application.scala b/sample/app/controllers/Application.scala
@@ -21,5 +21,9 @@ object Application extends Controller with DBSessionElement with LoggingElement
     val messages = Message.findAll
     Ok(views.html.messages(messages))
   }
+
+  def javascriptLateBinding = StackAction { implicit req =>
+    Ok(views.html.js)
+  }
 
 }
diff --git a/sample/app/controllers/JavascriptPage.scala b/sample/app/controllers/JavascriptPage.scala
@@ -0,0 +1,53 @@
+package controllers
+
+import jp.t2v.lab.play2.stackc.{RequestAttributeKey, RequestWithAttributes}
+import play.api.mvc.Request
+import play.twirl.api.{Html, HtmlFormat}
+
+object JavascriptPage  {
+
+  case class NonBlockingJs(uid: Int) extends RequestAttributeKey[Html]
+  protected object NonBlockingJsCount extends RequestAttributeKey[Int]
+  case class BlockingJs(uid: Int) extends RequestAttributeKey[Html]
+  protected object BlockingJsCount extends RequestAttributeKey[Int]
+
+  def addNonBlockingJs(jscript: Html)(implicit request: Request[_]): Html = {
+    request match {
+      case i: RequestWithAttributes[_] =>
+        val uid = i.get(NonBlockingJsCount).getOrElse(0)
+        i.set(NonBlockingJs(uid), jscript)
+        i.set(NonBlockingJsCount,uid+1)
+      case _ =>
+    }
+
+    HtmlFormat.empty
+  }
+
+  def addBlockingJs(jscript: Html)(implicit request: Request[_]): Html = {
+    request match {
+      case i: RequestWithAttributes[_] =>
+        val uid = i.get(BlockingJsCount).getOrElse(0)
+        i.set(BlockingJs(uid), jscript)
+        i.set(BlockingJsCount,uid+1)
+      case _ =>
+    }
+    HtmlFormat.empty
+  }
+
+  def getNonBlockingJs()(implicit request: Request[_]): Seq[Html] = {
+    request match {
+      case i: RequestWithAttributes[_] =>
+        i.get(NonBlockingJsCount) match {
+          case Some(maxUid) =>
+            (0 until maxUid).map { uid =>
+              i.get(NonBlockingJs(uid)) match {
+                case None => HtmlFormat.empty
+                case Some(jscript) => jscript
+              }
+            }
+          case _ => Seq.empty[Html]
+        }
+      case _ => Seq.empty[Html]
+    }
+  }
+}
diff --git a/sample/app/views/indexBody.scala.html b/sample/app/views/indexBody.scala.html
@@ -0,0 +1,15 @@
+@import controllers.JavascriptPage
+
+@()(implicit request: Request[_])
+
+@JavascriptPage.addNonBlockingJs {
+    <script>
+        window.alert("Script 1");
+    </script>
+}
+
+@JavascriptPage.addNonBlockingJs {
+    <script>
+            window.alert("Script 2");
+    </script>
+}
diff --git a/sample/app/views/inlineNonBlockingJs.scala.html b/sample/app/views/inlineNonBlockingJs.scala.html
@@ -0,0 +1,7 @@
+@import controllers.JavascriptPage
+
+@()(implicit request: Request[_])
+
+@defining(JavascriptPage.getNonBlockingJs()) { scripts =>
+    @scripts.map { item => @item }
+}
diff --git a/sample/app/views/js.scala.html b/sample/app/views/js.scala.html
@@ -0,0 +1,4 @@
+@(implicit request: Request[_])
+@main("Welcome to") {
+    @indexBody()
+}
diff --git a/sample/app/views/main.scala.html b/sample/app/views/main.scala.html
@@ -11,5 +11,7 @@
     </head>
     <body>
         @content
+
+        @inlineNonBlockingJs()
     </body>
 </html>
diff --git a/sample/conf/routes b/sample/conf/routes
@@ -8,6 +8,7 @@ GET     /                           controllers.Application.index
 GET     /messages                   controllers.Application.messages
 GET     /messages/:id               controllers.Application.editMessage(id: Int)
 
+GET     /javascript                 controllers.Application.javascriptLateBinding
 
 # Map static resources from the /public folder to the /assets URL path
 GET     /assets/*file               controllers.Assets.at(path="/public", file)
-Original file line number
+Diff line change
@@ Expand Up / @@ -11,5 +11,7 @@ @@
         </head>
         <body>
             @content
+            @inlineNonBlockingJs()
         </body>
     </html>