Add notification to configure kotlin project

idea/src/META-INF/plugin.xml

@@ -26,6 +26,9 @@
     <component>
       <implementation-class>org.jetbrains.jet.plugin.versions.OutdatedKotlinRuntimeNotification</implementation-class>
     </component>
+    <component>
+      <implementation-class>org.jetbrains.jet.plugin.configuration.ui.NonConfiguredKotlinProjectNotification</implementation-class>
+    </component>
     <component>
       <implementation-class>org.jetbrains.jet.plugin.ktSignature.KotlinSignatureInJavaMarkerUpdater</implementation-class>
     </component>

idea/src/org/jetbrains/jet/plugin/configuration/ui/NonConfiguredKotlinProjectNotification.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2010-2013 JetBrains s.r.o.
+ *
+ * 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 org.jetbrains.jet.plugin.configuration.ui;
+
+import com.intellij.openapi.components.AbstractProjectComponent;
+import com.intellij.openapi.project.DumbService;
+import com.intellij.openapi.project.Project;
+import com.intellij.util.messages.MessageBusConnection;
+import org.jetbrains.jet.plugin.configuration.ConfigureKotlinInProjectUtils;
+
+public class NonConfiguredKotlinProjectNotification extends AbstractProjectComponent {
+
+    protected NonConfiguredKotlinProjectNotification(Project project) {
+        super(project);
+    }
+
+    @Override
+    public void projectOpened() {
+        super.projectOpened();
+        MessageBusConnection connection = myProject.getMessageBus().connect();
+        connection.subscribe(DumbService.DUMB_MODE, new DumbService.DumbModeListener() {
+            @Override
+            public void enteredDumbMode() {
+            }
+
+            @Override
+            public void exitDumbMode() {
+                ConfigureKotlinInProjectUtils.showConfigureKotlinNotificationIfNeeded(myProject);
+            }
+        });
+    }
+}