| /* |
| * 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; |
| |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.actionSystem.PlatformDataKeys; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.refactoring.introduce.inplace.AbstractInplaceIntroducer; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.TestOnly; |
| |
| /** |
| * @author dsl |
| */ |
| public abstract class IntroduceHandlerBase implements RefactoringActionHandler { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.refactoring.IntroduceHandlerBase"); |
| |
| public void invoke(@NotNull Project project, @NotNull PsiElement[] elements, DataContext dataContext) { |
| LOG.assertTrue(elements.length >= 1 && elements[0] instanceof PsiExpression, "incorrect invoke() parameters"); |
| final PsiElement tempExpr = elements[0]; |
| final Editor editor; |
| if (dataContext != null) { |
| final Editor editorFromDC = CommonDataKeys.EDITOR.getData(dataContext); |
| final PsiFile cachedPsiFile = editorFromDC != null ? PsiDocumentManager.getInstance(project).getCachedPsiFile(editorFromDC.getDocument()) : null; |
| if (cachedPsiFile != null && PsiTreeUtil.isAncestor(cachedPsiFile, tempExpr, false)) { |
| editor = editorFromDC; |
| } |
| else { |
| editor = null; |
| } |
| } |
| else { |
| editor = null; |
| } |
| if (tempExpr instanceof PsiExpression) { |
| invokeImpl(project, (PsiExpression)tempExpr, editor); |
| } |
| else if(tempExpr instanceof PsiLocalVariable) { |
| invokeImpl(project, (PsiLocalVariable)tempExpr, editor); |
| } |
| else { |
| LOG.error("elements[0] should be PsiExpression or PsiLocalVariable"); |
| } |
| } |
| |
| /** |
| * @param project |
| * @param tempExpr |
| * @param editor editor to highlight stuff in. Should accept <code>null</code> |
| * @return |
| */ |
| protected abstract boolean invokeImpl(Project project, PsiExpression tempExpr, |
| Editor editor); |
| |
| /** |
| * @param project |
| * @param localVariable |
| * @param editor editor to highlight stuff in. Should accept <code>null</code> |
| * @return |
| */ |
| protected abstract boolean invokeImpl(Project project, PsiLocalVariable localVariable, |
| Editor editor); |
| |
| @TestOnly |
| public abstract AbstractInplaceIntroducer getInplaceIntroducer(); |
| } |