201: RefactoringHelper.prepareOperation nullability (bunched)

idea/src/org/jetbrains/kotlin/idea/codeInsight/KotlinRefactoringHelperForDelayedRequests.kt.201

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2010-2015 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.kotlin.idea.codeInsight
+
+import com.intellij.openapi.project.Project
+import com.intellij.refactoring.RefactoringHelper
+import com.intellij.usageView.UsageInfo
+import org.jetbrains.kotlin.idea.codeInsight.shorten.performDelayedRefactoringRequests
+import org.jetbrains.kotlin.idea.codeInsight.shorten.prepareDelayedRequests
+import org.jetbrains.kotlin.idea.util.application.runWriteAction
+
+class KotlinRefactoringHelperForDelayedRequests : RefactoringHelper<Any> {
+    override fun prepareOperation(usages: Array<out UsageInfo>): Any? {
+        if (usages.isNotEmpty()) {
+            val project = usages[0].project
+            prepareDelayedRequests(project)
+        }
+        return null
+    }
+
+    override fun performOperation(project: Project, operationData: Any?) {
+        runWriteAction { performDelayedRefactoringRequests(project) }
+    }
+}