Prohibit rename refactoring on secondary ctor

Make custom handler that runs when caret is on secondary ctor
but do nothing because constructors don't have name.

It's neccessary because otherwise default handler will be ran
with proposition to rename class.

Also note, that we do not run this handler when
caret is on constructor's body or argument's list to allow renaming
inner declarations.

idea/src/META-INF/plugin.xml

@@ -304,6 +304,7 @@
                                order="first"/>
     <renameHandler implementation="org.jetbrains.kotlin.idea.refactoring.rename.RenameKotlinImplicitLambdaParameter"/>
     <renameHandler implementation="org.jetbrains.kotlin.idea.refactoring.rename.RenameDynamicMemberHandler"/>
+    <renameHandler implementation="org.jetbrains.kotlin.idea.refactoring.rename.RenameOnSecondaryConstructorHandler"/>
 
     <spellchecker.support implementationClass="org.jetbrains.kotlin.idea.KotlinSpellcheckingStrategy" language="jet"/>
 

idea/src/org/jetbrains/kotlin/idea/refactoring/rename/RenameOnSecondaryConstructorHandler.kt

@@ -0,0 +1,57 @@
+/*
+ * 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.refactoring.rename
+
+import com.intellij.openapi.actionSystem.CommonDataKeys
+import com.intellij.openapi.actionSystem.DataContext
+import com.intellij.openapi.editor.Editor
+import com.intellij.openapi.project.Project
+import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiFile
+import com.intellij.psi.util.PsiTreeUtil
+import com.intellij.refactoring.rename.RenameHandler
+import org.jetbrains.kotlin.idea.codeInsight.CodeInsightUtils
+import org.jetbrains.kotlin.psi.JetBlockExpression
+import org.jetbrains.kotlin.psi.JetParameterList
+import org.jetbrains.kotlin.psi.JetSecondaryConstructor
+import org.jetbrains.kotlin.psi.JetValueArgumentList
+
+
+public class RenameOnSecondaryConstructorHandler : RenameHandler {
+    override fun isAvailableOnDataContext(dataContext: DataContext?): Boolean {
+        if (dataContext == null) return false
+
+        val editor = CommonDataKeys.EDITOR.getData(dataContext)
+        val file = CommonDataKeys.PSI_FILE.getData(dataContext)
+
+        val element = PsiTreeUtil.findElementOfClassAtOffsetWithStopSet(
+                file, editor.getCaretModel().getOffset(), javaClass<JetSecondaryConstructor>(), false,
+                javaClass<JetBlockExpression>(), javaClass<JetValueArgumentList>(), javaClass<JetParameterList>()
+        )
+        return element != null;
+    }
+
+    override fun isRenaming(dataContext: DataContext?): Boolean = isAvailableOnDataContext(dataContext)
+
+    override fun invoke(project: Project, editor: Editor, file: PsiFile, dataContext: DataContext?) {
+        CodeInsightUtils.showErrorHint(project, editor, "Rename is not applicable to secondary constructors", "Rename", null);
+    }
+
+    override fun invoke(project: Project, elements: Array<out PsiElement>, dataContext: DataContext?) {
+        // Do nothing: this method is called not from editor
+    }
+}