Add Result case classes for plugin

src/main/scala/plugin/Results.scala

@@ -0,0 +1,8 @@
+package plugin
+
+import play.twirl.api.Html
+
+object Results {
+  case class Redirect(path: String)
+  case class Fragment(html: Html)
+}

src/main/scala/servlet/PluginActionFilter.scala

@@ -9,6 +9,7 @@ import plugin.PluginRegistry
 import service.SystemSettingsService
 import util.Keys
 import app.Context
+import plugin.Results._
 
 class PluginActionFilter extends Filter with SystemSettingsService {
 
@@ -39,6 +40,11 @@ class PluginActionFilter extends Filter with SystemSettingsService {
             // TODO title of plugin action
             res.getWriter.write(html.main("TODO")(x).body)
             res.getWriter.flush()
+          case Redirect(x) =>
+            res.sendRedirect(x)
+          case Fragment(x) =>
+            res.getWriter.write(x.body)
+            res.getWriter.flush()
         }
       }.getOrElse {
         chain.doFilter(req, res)