| /* |
| * Copyright 2000-2012 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.plugins.groovy.intentions.control; |
| |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.intentions.base.Intention; |
| import org.jetbrains.plugins.groovy.intentions.base.PsiElementPredicate; |
| import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrIfStatement; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.branch.GrReturnStatement; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrConditionalExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression; |
| |
| /** |
| * @author Andreas Arledal |
| */ |
| public class ReplaceTernaryWithIfElseIntention extends Intention { |
| |
| @Override |
| protected void processIntention(@NotNull PsiElement element, Project project, Editor editor) throws IncorrectOperationException { |
| |
| GrConditionalExpression parentTernary = findTernary(element); |
| GroovyPsiElementFactory groovyPsiElementFactory = GroovyPsiElementFactory.getInstance(project); |
| |
| GrReturnStatement parentReturn = (GrReturnStatement)parentTernary.getParent(); |
| |
| String condition = parentTernary.getCondition().getText(); |
| GrExpression thenBranch = parentTernary.getThenBranch(); |
| String thenText = thenBranch != null ? thenBranch.getText() : ""; |
| |
| GrExpression elseBranch = parentTernary.getElseBranch(); |
| String elseText = elseBranch != null ? elseBranch.getText() : ""; |
| |
| String text = "if (" + condition + ") { \nreturn " + thenText + "\n} else {\n return " + elseText + "\n}"; |
| GrIfStatement ifStatement = (GrIfStatement)groovyPsiElementFactory.createStatementFromText(text); |
| ifStatement = parentReturn.replaceWithStatement(ifStatement); |
| editor.getCaretModel().moveToOffset(ifStatement.getRParenth().getTextRange().getEndOffset()); |
| |
| |
| } |
| |
| @NotNull |
| @Override |
| protected PsiElementPredicate getElementPredicate() { |
| return new PsiElementPredicate() { |
| @Override |
| public boolean satisfiedBy(PsiElement element) { |
| GrConditionalExpression ternary = findTernary(element); |
| if (ternary == null || element == null || ternary.getThenBranch() == null || ternary.getElseBranch() == null) { |
| return false; |
| } |
| if (!(ternary.getParent() instanceof GrReturnStatement)) { |
| return false; |
| } |
| return true; |
| } |
| }; |
| } |
| |
| @Nullable |
| private static GrConditionalExpression findTernary(PsiElement element) { |
| GrConditionalExpression ternary = PsiTreeUtil.getParentOfType(element, GrConditionalExpression.class); |
| if (ternary == null) { |
| GrReturnStatement ret = PsiTreeUtil.getParentOfType(element, GrReturnStatement.class); |
| if (ret != null && ret.getReturnValue() instanceof GrConditionalExpression) { |
| ternary = (GrConditionalExpression)ret.getReturnValue(); |
| } |
| } |
| return ternary; |
| } |
| } |