| /* |
| * Copyright 2000-2009 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 com.intellij.refactoring.introduceparameterobject; |
| |
| import com.intellij.ide.util.SuperMethodWarningUtil; |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.actionSystem.LangDataKeys; |
| import com.intellij.openapi.actionSystem.PlatformDataKeys; |
| import com.intellij.openapi.editor.CaretModel; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.ScrollType; |
| import com.intellij.openapi.editor.ScrollingModel; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.refactoring.HelpID; |
| import com.intellij.refactoring.RefactorJBundle; |
| import com.intellij.refactoring.RefactoringActionHandler; |
| import com.intellij.refactoring.RefactoringBundle; |
| import com.intellij.refactoring.util.CommonRefactoringUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class IntroduceParameterObjectHandler implements RefactoringActionHandler { |
| private static final String REFACTORING_NAME = RefactorJBundle.message("introduce.parameter.object"); |
| |
| public void invoke(@NotNull Project project, Editor editor, PsiFile file, DataContext dataContext) { |
| final ScrollingModel scrollingModel = editor.getScrollingModel(); |
| scrollingModel.scrollToCaret(ScrollType.MAKE_VISIBLE); |
| final PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(dataContext); |
| PsiMethod selectedMethod = null; |
| if (element instanceof PsiMethod) { |
| selectedMethod = (PsiMethod)element; |
| } |
| else if (element instanceof PsiParameter && ((PsiParameter)element).getDeclarationScope() instanceof PsiMethod){ |
| selectedMethod = (PsiMethod)((PsiParameter)element).getDeclarationScope(); |
| } |
| else { |
| final CaretModel caretModel = editor.getCaretModel(); |
| final int position = caretModel.getOffset(); |
| final PsiElement elementAt = file.findElementAt(position); |
| final PsiMethodCallExpression methodCallExpression = |
| PsiTreeUtil.getParentOfType(elementAt, PsiMethodCallExpression.class); |
| if (methodCallExpression != null) { |
| selectedMethod = methodCallExpression.resolveMethod(); |
| } else { |
| final PsiParameterList parameterList = PsiTreeUtil.getParentOfType(elementAt, PsiParameterList.class); |
| if (parameterList != null && parameterList.getParent() instanceof PsiMethod) { |
| selectedMethod = (PsiMethod)parameterList.getParent(); |
| } |
| } |
| } |
| if (selectedMethod == null) { |
| final String message = RefactorJBundle.message("cannot.perform.the.refactoring") + |
| RefactorJBundle.message("the.caret.should.be.positioned.at.the.name.of.the.method.to.be.refactored"); |
| CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.IntroduceParameterObject); |
| return; |
| } |
| invoke(project, selectedMethod, editor); |
| } |
| |
| public void invoke(@NotNull Project project, @NotNull PsiElement[] elements, DataContext dataContext) { |
| if (elements.length != 1) { |
| return; |
| } |
| final PsiMethod method = PsiTreeUtil.getParentOfType(elements[0], PsiMethod.class, false); |
| if (method == null) { |
| return; |
| } |
| Editor editor = CommonDataKeys.EDITOR.getData(dataContext); |
| invoke(project, method, editor); |
| } |
| |
| private static void invoke(final Project project, final PsiMethod selectedMethod, Editor editor) { |
| PsiMethod newMethod = SuperMethodWarningUtil.checkSuperMethod(selectedMethod, RefactoringBundle.message("to.refactor")); |
| if (newMethod == null) return; |
| if (!CommonRefactoringUtil.checkReadOnlyStatus(project, newMethod)) return; |
| |
| final PsiParameter[] parameters = newMethod.getParameterList().getParameters(); |
| if (parameters.length == 0) { |
| final String message = |
| RefactorJBundle.message("cannot.perform.the.refactoring") + RefactorJBundle.message("method.selected.has.no.parameters"); |
| CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.IntroduceParameterObject); |
| return; |
| } |
| if (newMethod instanceof PsiCompiledElement) { |
| CommonRefactoringUtil.showErrorHint(project, editor, RefactorJBundle.message("cannot.perform.the.refactoring") + RefactorJBundle.message( |
| "the.selected.method.cannot.be.wrapped.because.it.is.defined.in.a.non.project.class"), REFACTORING_NAME, HelpID.IntroduceParameterObject); |
| return; |
| } |
| new IntroduceParameterObjectDialog(newMethod).show(); |
| } |
| } |